at the CMC meeting

Technological cycle

Protocol No._____

from "__" _________ 2017

CMC Chairman

_______N.G. Abdeeva

qualifying exam The professional training cycle of the profession Engineer of process pumps and compressors

Examination ticket number 25

I approve

Head evening department

__________ A.I. Rafikova

"___" __________ 2017

Requirements for lubricants. Lubrication system. Lubrication methods.

Pump installation methods. Revision.

Types of instructions.

Flow rate and average flow rate.

Pressure gauges device, principle of operation.

Lecturer: I.I. Sadykov

rental block

PACKAGE OF THEORETICAL TESTS BY PROFESSION

"Engineer of technological compressors of 5-6 categories"

1. General provisions

1. Documents defining the content of the CMM package and the assessment procedure:

A) professional standard "Engineer of technological compressors of the 36th category";

B) a modular training program for the profession "Machinist of technological compressors of the 5-6th category";

1. List of Evaluated OTF

OTP code Name of OTP Weight coefficient of OTP,% 1 Regulation of the technological mode of operation of NCOs, vessels, apparatuses.532Operational maintenance of NCOs, vessels and apparatuses.47Total100

1. Evaluation procedure
   1. ETF knowledge and skills are assessed at the end of the relevant training modules
   2. Knowledge assessment is carried out under the supervision of an instructor

1. The assessment of practical skills is carried out at a specially prepared training ground, in a simulator and computer classes (specified specifically).
2. Evaluation results.

The test result is evaluated as a percentage - the ratio of the number of correct answers to the total number of questions. The test is passed if the resulting score is at least 80%.

6. CMM package structure

CodeOTFCode and name of TFTeor. test, number of questions Duration min. test, number of tasks Duration min.1. 1.1. Start-up and withdrawal of NCOs, vessels and apparatuses to the technological mode from the reserve. 423531 hour 30 min (each) 1.2. Control of parameters of operation of TC, pumps, vessels and apparatuses. 2415120 min1.3. Shutdown and decommissioning of NPOs, vessels, devices for repair/reserve. 1582 No. 1 - 1 hour No. 2 - 1 hour 30 min 1.4. Maintenance of technical documentation in accordance with the approved list. 116110 min 2.2.1. Periodic maintenance NKO.2015230min (each) 2.2. Preparation of NPOs, vessels and apparatuses for repair, transfer to reserve from repair. Maintenance of instrumentation and A2215110 min TOTAL: 17413

Blank test form (in case of testing on paper)

Name of OTF ______________________

Surname I.O. Candidate ____________________ Date _____________

Question # Answer (1 point for a correct answer) 12345….…. Total number of questions Number of correct answers % completion

Candidate's signature _____________

Expert signature ______________

A test package for the profession "Technological compressor operator of 5-6 categories" for OTF 1.

OTF 1 Regulation of the technological mode of operation of NCOs, vessels, apparatuses. 1.1. Start-up and withdrawal of NCOs, vessels and devices to the technological regime from the reserve. 1.2. Control of parameters of operation of TC, pumps, vessels and apparatuses.1.3. Shutdown and decommissioning of NCOs, vessels, devices for repair/reserve.1.4. Maintenance of technical documentation in accordance with the approved list

Theoretical Test #1

Each correct answer is worth 1 point. The threshold value of X points is 80% of the test.

Candidate instructions:

The test includes a set of questions and tasks, for each of which there are several possible answers. You need to indicate the correct answer (answers) from your point of view in the test form No. 1 under the number corresponding to the question number in the test.

SECTION 1. Regulation of the technological mode of operation of NCOs, vessels, apparatuses.

TRAINING MODULE 1.1. Start-up and withdrawal of NCOs, vessels and apparatuses to the technological mode from the reserve.

1. The position of the valves on the suction and discharge pipelines before starting the 7VKG screw compressor must be:

1. On the suction - ajar by 1/3, on the pressure - closed;
2. On the suction - open, on the pressure closed;
3. On the suction - open, on the pressure - open;
4. On the suction - open, on the pressure ajar by 1/3;

2. The position of the valves on the suction discharge pipelines, as well as on the capacity bypass line, before starting the reciprocating compressor must be:

1. On the suction - ajar by 1/3, on the pressure closed, on the bypass - open;
2. On the suction - open, on the pressure closed, on the bypass - open;
3. On the suction - closed, on the pressure closed, on the bypass - open;
4. On the suction - open, on the pressure ajar by 1/3, on the bypass - closed;

3. When is it forbidden to put a screw compressor into operation?

1. Discharge valve closed.
2. There is liquid in the suction pipe.
3. Clogged inlet filter.
4. Compressor shaft does not turn by hand.
5. True a, b, d;
6. All options are correct.

4. What is the purpose of the check valve in the piping of the 7VKG screw compressor?

1. To prevent the compressor rotors from spinning in the opposite direction in case of a sudden stop of the unit, as well as leakage of the valve on the discharge side;
2. To start the unit with the valve on the discharge line open;

5. Compressor discharge pressure within operating characteristic supported:

1. By means of a valve on the suction pipeline;
2. With the help of a valve on the discharge pipeline;
3. By means of a regulator valve on the suction pipe;
4. With the help of a regulator valve on the discharge pipeline;

6. At what stage of oil and gas separation is the largest amount of associated gas released?

1. First;
2. Second;
3. third;

7. What is the purpose of the shut-off valve in the piping of the 7VKG screw compressor?

1. For use as a backup shut-off device in case of a valve failure on the receiving line;
2. To prevent spontaneous start of the pumping unit.

8. What is the purpose of the bypass valve in the piping of the 7VKG screw compressor?

1. To facilitate the start of the compressor at sub-zero temperatures;
2. To prevent the compressor rotors from spinning in the opposite direction in case of a sudden stop of the unit, as well as leakage of the discharge valve;
3. To shut off the oil inlet to the compressor when the oil system is under pressure when the compressor is not running;
4. To prevent spontaneous start of the pumping unit.

9. Complete the sentence: “The radial loads in the 7VKG screw compressor are perceived ...”:

1. Angular contact bearings installed in the suction chamber;
2. Angular contact bearings installed in the suction and discharge chambers;

10. Complete the sentence: “Axial loads in the 7VKG screw compressor are perceived ...”:

1. roller bearings installed in the suction chamber;
   1. Angular contact bearings installed in the injection chamber;
   2. Roller bearings installed in the suction and discharge chambers;
   3. Angular contact bearings installed in the suction chambers;

12. Set the sequence of actions when starting the 7VKG screw compressor:

1. 1. Turn the compressor rotors by hand 3-5 revolutions clockwise behind the half-coupling of the electric motor with a crank;
      1. Check readings instrumentation and instrumentation on the local board: discharge pressure, suction pressure, suction manifold pressure, discharge temperature;
         1. Press the handle with the inscription "Start the compressor";
         2. When the oil temperature reaches 65 ºС, turn on the oil cooler fan
         3. Turn on the automatic switch on the control panel with the inscription "Input switch";

Answer: 2-6-1-4-3-5

13. Indicate the number of the figure, which shows the shut-off and control valves?

1. Figure #1;
2. Figure #2;
3. Figure #3.

14. List what the 7VKG compressor housing consists of:

1. Cylinder block;
2. Protective cover of the flexible coupling;
3. suction chamber;
4. injection chamber;

15. For what purpose is the gas inlet to the GS brand gas separator made perpendicular to the cylindrical part of the body:

1. To improve the trapping of dropping liquid due to the forces of gravity;
2. To improve the trapping of dropping liquid due to the forces of inertia;
3. To improve the trapping of dropping liquid due to the selective wettability of oil.

16. What does a centrifugal compressor stage consist of:

1. Impeller, confuser, guide vane;
2. Impeller, annular diffuser, guide vane, reverse guide vane;
3. Impeller, confuser, guide vane, reverse guide vane;
4. Impeller, annular diffuser, guide vane;

17. What material are the engine cylinders of a piston gas engine compressor made of:

1. steel;
2. cast iron;
3. bronze;
4. aluminum;

18. What are the main stages of operation of a gas turbine:

1. Compression: compression of atmospheric air;
2. Combustion: Fuel added to compressed air ignites;
3. Expansion: Combustion gases expand to do work;
4. Exhaust: emission of exhaust gases into the atmosphere;
5. All of the above is true;
6. True a and c;

19. What is compressed in the turbocharger of a gas turbine plant?

1. methane;
2. propane;
3. air;
4. nitrogen;

20. Single stage power turbine transfers power to the compressor:

1. through a reduction gear;
2. through a step-up gearbox;
3. without gearbox;

21. The four auxiliary systems of the Mars installation include:

1. fire fighting system, lubrication system, water cooling system, fuel system, control system;
2. lubrication system, start-up system, fuel system, control system;
3. lubrication system, sealing system, water system, servo control system, fuel system;
4. cooling system, fuel system, oil system, air system, starting system;

22. In a two-shaft gas turbine engine, the shaft power is regulated:

1. changing the position of adjustable guide vanes;
2. choice of openable gas fuel shut-off valve (main or auxiliary);
3. a change in the flow rate of the fuel supplied to the engine, which in turn changes the rotational speed of the gas generator turbine and the power turbine;
4. opening or closing the air bypass valve;

23. Air temperature at engine inlet (T1):

1. measured on the nozzle apparatus of the third stage of the turbine;
2. depends on the position of the throttle valve;
3. affects the available rated power of the engine, as it is a measure of air density;
4. does not affect the rated power of the motor.

24. If there is a heat recovery system in the exhaust system of a gas turbine engine:

1. the air bypass valve must always be open;
2. the engine and exhaust system must be thoroughly vented before starting the ignition phase during the start cycle;
3. the unit must have an exhaust valve;
4. the time between starts must be at least 4 hours;

25. Purpose of the lubrication system:

1. supply of lubricating oil to the drive equipment;
2. lubrication and cooling of turbine bearings and starter clutch;
3. oil supply at the required temperature and pressure to the servo control system;
4. heating of the air supplied to the engine inlet

26. What is the purpose of magnetic sensors?

1. engine speed control;
2. maintaining gear alignment;
3. determination of engine speed and power turbine speed;
4. determination of unacceptable vibrations;

27. Which of the following best describes an overrunning clutch?

1. remains engaged until the turbine reaches 100% speed;
2. transfers the rotational force from the shaft of the auxiliary drive box to the starter shaft;
3. disengages when turbine speed exceeds starter speed;
4. rotates clockwise and counterclockwise.

28. Which of the following best describes the starting system?

1. turns on only for the time before the start of the ignition cycle;
2. starts the rotation of the gas turbine engine and contributes to the acceleration of the engine to 65% of the rotational speed;
3. disengages when engine speed falls below 15%;
4. rotates clockwise and counterclockwise;

29. Complete the sentence: After a regular shutdown of the running Mars-90S gas turbine engine, the lubrication system ..:

1. turns off as soon as the engine speed drops below 15%;
2. operates in a final lubrication cycle for approximately 4 hours;
3. stops for 20 minutes after the engine stops, and then turns on for 15 minutes;
4. turns on for the purpose of cooling the lubricating oil only if the operator considers it necessary;

30. With the help of which labyrinth seals prevent oil leakage from under the oil seals of the Mars-90S gas turbine engine.

1. air;
2. graphite rings;
3. rubber rings;
4. carbon dioxide;

31. What is the purpose of the system of adjustable guide vanes?

1. opens to prevent compressor surge;
2. equalizes the volume of air flow inside the compressor;
3. cools the rotors in the turbine section;
4. controls the position of the air bypass valve;

32. Complete the sentence: "Air bypass valve ...":

1. closed by spring force;
2. closed by an electrical signal from the control system;
3. closed by compressor air pressure;
4. opens when the speed rises above 66%;

33. Choose the correct distribution of the power generated by the turbine:

1. two thirds for the engine compressor, one third for the drive equipment;
2. half for the engine compressor, half for the drive equipment;
3. one third for the engine compressor, two thirds for the drive equipment;
4. one quarter for the engine compressor, three quarters for the drive equipment.

34. Complete the sentence: “Inlet air temperature affects the available power rating because…”:

1. cold air is less dense than hot air;
2. hot air is less dense than cold air;
3. the combustion chamber requires more fuel in cold weather;
4. cold oil provides increased resistance to bearing rotation in cold weather.

35. Which of the following most fully describes the lubrication system of a gas turbine engine?

1. drives the cooler fan;
2. lubricates the engine
3. lubricates and cools motor bearings;
4. cools the combustion chamber;

36. If signs of gas turbine engine surge are detected, the driver must:

1. wait until funds automatic control stop the engine;
2. do not take any action if a flame does not appear from the compressor inlet;
3. do not try to load the compressor until the symptoms disappear;
4. stop the engine immediately.

37. What phases are carried out during the operation of a reciprocating compressor?

1. Expansion, suction, contraction, expulsion;
2. Expansion, suction, contraction;
3. Suction, compression, expulsion;

38. Multistage gas compression is used:

1. To increase consumption;
2. To increase pressure;
3. To increase the temperature;

39. What drives the pistons of a multi-piston pump?

1. crank mechanism;
2. crankshaft;
3. Worm gear;

40. What are gear pumps for?

1. For pumping easily solidifying liquids such as paraffin and containing mechanical impurities up to 5%.
2. For pumping oil products, easily solidifying liquids such as paraffin and others that do not cause corrosion of the working parts of pumps and have lubricity at temperatures up to 100°C.
3. All of the above;

41. When starting a centrifugal pump, how can you tell if the flow line is blocked or frozen?

1. Extraneous noise in the electric motor and pump;
2. The pressure on the flow line does not drop;
3. No pressure develops in the flow line;
4. Overheating of motor and pump bearings;

42. What needs to be checked before starting the operation of a submersible centrifugal pump type HB?

1. The presence of liquid in the tank according to the level gauge, the serviceability of the light and sound alarms, the serviceability of the pump itself and the serviceability of the grounding of the electric motor and pump, the serviceability of pressure gauges on the pump discharge pipeline, the reliability of fastening flange connections and bolted connections of the pump-motor coupling, seal tightness.
2. In the correct direction of rotation of the motor shaft and the fastening of the pump plate to the neck of the tank.
3. The check valve is in good condition and the shut-off valves on the pressure pipeline of the end user are open.
4. That the pump is in good working order and is on standby.

TRAINING MODULE 1.2. Control of parameters of work of TC, pumps, vessels and devices.

1. In the screw compressor index 7VKG50/7, the numbers indicate:

1. 7 - compressor base number (diameter of the compressor rotors), 50 - capacity in m3/s, 7 - pressure in atmospheres;
2. 7 - compressor base number (length of the compressor rotors), 50 - capacity in m3/min, 7 - overpressure at discharge in kgf/cm2;
3. 7 - compressor base number (diameter of the compressor rotors), 50 - capacity in m3/min, 7 - absolute discharge pressure in kg/cm2;
4. 7 - compressor base number (length of compressor rotors), 50 - capacity in m3/s, 7 - discharge pressure in MPa.

2. How is the suction pressure regulated before the 7VKG screw compressor?

1. Manually with a valve on the suction line;
2. Installing a fitting on the suction line;
3. Installing a control valve on the discharge line;
4. Manually using a gate valve on the discharge line;

3. What affects the discharge pressure?

1. friction losses;
2. separation pressure;
3. Degree of gas consumption;
4. All of the above.

4. How is the temperature of the outgoing gas-oil mixture controlled in a screw compressor?

1. By changing the temperature of the oil at the injection;
2. By changing the pressure in the suction line;
3. By changing the amount of oil in the injection;
4. By changing the pressure on the discharge line;
5. True a and c;
6. All of the above.

5. At what pressure will the SPPK safety valve operate if the operating pressure in the apparatus is 10 kgf/cm2?

1. When the operating pressure is exceeded by 10%;
2. When the operating pressure is exceeded by 15%;
3. When the operating pressure is exceeded by 20%;
4. When the working pressure is exceeded by 25%;

6. List the parameters of a screw oil-flooded compressor that the operator of process compressors should control:

1. Oil pressure in the lubrication manifold;
2. Oil temperature at the compressor inlet;
3. Voltmeter and ammeter readings on the power board;
4. True b and c;
5. A, b, c are correct;

7. List what parameters of the external piping equipment should be controlled by the operator of process compressors:

1. Oil level in the separator;
2. Oil pressure before and after the filter;
3. Oil pressure before and after the refrigerator;
4. Oil pressure before and after the oil pump;
5. The level of condensate in the separator;
6. That's right;

8. What action should be taken to prevent overloading the electric motor from excessive suction pressure:

1. Slightly open the valve on the discharge;
2. Open the suction valve;
3. Close the valve on the discharge;
4. Close the suction valve;

9. When changing the speed of the compressor shaft, the following changes:

1. Compressor performance;
2. Compressor power;
3. Compressor discharge pressure;
4. True a, b;
5. All options are correct;

10. Which compressors, by design, are volumetric:

1. centrifugal;
2. rotary;
3. axial;
4. jet;

11. Which compressors, according to their design, are vane compressors:

1. piston;
2. rotary;
3. axial;
4. jet;

12. Name the capacity control method for reciprocating compressors only:

1. Bypassing gas from the compression cavity to the suction cavity;
2. Periodic compressor stops;

13. Name the capacity control method only for rotary compressors:

1. Suction throttling;
2. Shaft speed change;
3. Change in the volume of dead space;

14. What data is used when choosing a compressor:

1. Gas consumption mode;
2. Volumetric gas flow at the compressor inlet;
3. Properties of the pumped gas;
4. Type of compressor drive;
5. That's right;
6. Only a and b are true;

15. What part of the screw compressor does the arrow point to?

Answer: compensator

16. How centrifugal compressors are regulated:

1. Changing the rotor speed;
2. Gas throttling on the suction side;
3. Change in the volume of dead space;
4. Squeezing the plates of the suction valve;

17. What is the name of the Ajax piston compressor device number 15?

Answer: A device for regulating the volume of dead space

18. What happens when a gas is compressed?

1. Temperature decreases and pressure rises;
2. The temperature rises and the pressure rises;
3. Temperature rises and pressure decreases;

19. What is the “dew point” of gas in terms of moisture?

1. This is a temperature equal to 0 degrees Celsius;
2. This is a temperature equal to -4 degrees Celsius;
3. This is the temperature below which condensation of water vapor and gas begins.
4. This is the temperature above which condensation of water vapor and gas begins.

20. With increasing temperature, the viscosity of the gas:

1. decreases;
2. increases;
3. remains unchanged.

21. What is used to control the performance of an opposed, single-stage, two-cylinder compressor model 9 "-2HSE-2V-I-P" Dresser-Rand"?

1. change in the length of the piston stroke;
2. compressor chamber variables;
3. change in the speed of the motor shaft.

22. How can the flow of centrifugal pumps be regulated?

1. Gate valve throttling;
   1. Bypassing part of the liquid from the pressure pipe to the suction pipe;
   2. Changing the speed of the impeller;
   3. All options are correct.

23. How many drive gears does a gear pump have?

1. one;

24. What group of compressors according to the principle of operation do screw compressors belong to:

1. voluminous;
   1. bladed;
   2. jet;

TRAINING MODULE 1.3. Shutdown and decommissioning of NCOs, vessels, devices for repair/reserve.

1. Specify possible reasons compressor vibration:

1. Loose fastening to the foundation or frame;
2. Incorrect connection of the compressor with the motor shaft, misalignment, excessive bearing wear;
3. Violation of the balancing of the pump rotors;
4. All causes are possible;

2. The results of the DHW analysis are recorded:

1. In the shift log;
2. In the air sample control log;
3. In regime sheets;
4. in special acts.

3. Set the sequence of actions when shutting down the 7VKG screw compressor:

1. Stop fans of oil coolers;
2. Stop the compressor from the local panel or from the control panel by pressing the “Stop general” button labeled “Compressor control;
3. Close shut-off valve.
4. Inspect the installation;
5. On the control panel, turn off the power with the “Power” automatic switch;

Answer: b-a-e-d-c.

4. What valve shuts off the oil supply when the 7VKG screw compressor stops?

1. Back;
2. bypass;
3. cut-off;
4. Safety.

5. In what cases should the screw compressor 7VKG be stopped?

1. If the gas temperature at the discharge has exceeded the allowable;
2. If the suction gas temperature is -5ºС;
3. When the motor is overloaded;
4. When there are extraneous knocks, shocks in the compressor;
5. All are true except b;
6. All right.

6. List the requirements when stopping the equipment of the compressor unit due to a malfunction:

1. Disconnected from existing production lines using shutoff valves;
2. Released from work product;
3. Marked with appropriate sold-out notices;
4. Electrical installations must be disconnected from the supply mains;
5. That's right;
6. True a, b, c;

7. Name the cases in which a normal shutdown of a compressor unit (GCU) is performed:

1. for scheduled repairs;
2. The coarse filter is clogged;
3. Abnormal knocks and noises in the compressor;
4. That's right;
5. a and d are correct.

8. What is knocked out on the shank of a metal plug:

1. Number, nominal pressure, nominal diameter, steel grade, thickness;
2. Number, nominal pressure, nominal diameter, steel grade;
3. Nominal pressure, nominal diameter, steel grade, thickness;
4. Nominal pressure, nominal diameter;

9. Name the cases in which an emergency shutdown of a compressor unit (GCU) is performed:

1. When you stop receiving gas from the GCU;
2. If the pressure gauge on the discharge line shows a pressure above the allowable;
3. If the grease manifold pressure gauge shows a pressure below the allowable one;
4. When the supply of raw materials to the GCU is stopped;
5. That's right;
6. b and c are correct.

10. What group of compressors according to the principle of operation do centrifugal compressors belong to:

1. Volumetric;
2. Bladed;
3. Inkjet;

11. What are the possible causes of knocks in the piston compressor frame:

1. Low oil pressure;
2. cold oil;
3. Worn sealing rings;
4. Piston rod worn or scratched;

12. What are the possible causes of turbocharger surge:

1. Polluted oil filters;
2. Excessive oil contamination of propane;
3. Low speed turbine drive;
4. The oil cooler is dirty;

13. How does the Ajax gas engine compressor normally stop:

1. by briefly pressing the "Stop" button;
2. by long pressing the "Stop" button;
3. by shutting off the fuel supply;
4. by shutting off the supply of pumped gas;

14. List the causes of overheating of the Ajax gas engine compressor engine:

1. The fuel gas pressure is too high;
   1. Overload;
   2. The air filter is clogged;
   3. Silencer or exhaust passages clogged;
   4. Cooler vent is limited;
   5. Faulty ignition;

15. Stop the centrifugal pump in the following order:

1. The intake valve is closed, the STOP button is pressed, the discharge valve is closed;
   1. The outlet valve is closed, the STOP button is pressed, the receiving valve is closed;
      1. The "STOP" button is pressed, both valves are closed simultaneously;

TRAINING MODULE 1.4. Maintenance of technical documentation in accordance with the approved list.

1. In which document are the current parameters of compressor units entered?

1. Technological regulations of the GCS:
2. The log of checking the state of working conditions:
3. Regime sheet, shift log;
4. Accident elimination plan.

2. What works carried out on the compressor unit are recorded in the maintenance log?

1. emergency repairs;
2. Scheduled preventive repairs;
3. Capital repairs;
4. All repair work.

3. What should the driver do before taking the watch?

1. Familiarize yourself with the entries in the shift log of the previous watch;
2. Check the condition of the equipment;
3. Talk to the shift driver;
4. Change into overalls established sample;
5. Familiarize yourself with the entries in the shift log after his last watch;
6. That's right;
7. True a, b and d;
8. b, d and e are correct;

4. Specify the duties of the compressor station operator upon completion of work.

1. Sign in the shift log;
2. Together with the owner of the watch, check the condition of the equipment and sign the watch log;
3. Report to the master;
4. Report to shift supervisor.

5. What compressor parameters are recorded in the logbook?

1. Pressure;
2. temperature;
3. The amount of vibration;
4. That's right;
5. True a and b;

6. In the presence of what documents is it allowed to perform work on the installation of plugs on pipelines from which gas can be released?

1. Work permit for installation removal of plugs;
2. Work permit for the installation of plugs and permission to carry out gas hazardous work;
3. Permission to install plugs;
4. Work permit for the installation of plugs and a diagram of their installation sites;
5. Permission for the installation of plugs and a diagram of their installation sites.

7. Complete the sentence: “Information on the prevention of possible emergencies at the plant must be brought to the operator of technological compressors and fixed ...

1. ...during training sessions,
2. ... upon acquaintance with the plan for the elimination of accidents against signature "
3. …during the annual knowledge test”
4. ... only after reading the information letters and the lessons learned from the incidents against signature.

8. In how many copies is the work permit for carrying out gas hazardous work drawn up?

1. in one;
2. in two;
3. in three;

9. With what frequency and by whom is the technological map approved?

1. 1 time per year, by the chief engineer of the enterprise (production);
2. 1 time in six months, leader structural unit;
3. 1 time in two years, by the chief engineer of the enterprise;
4. 1 time in three years, by the chief engineer of the enterprise;

10. Indicators of the operating mode of each unit of the installation are summarized:

1. In the technological map;
   1. In the instruction on labor protection;
   2. In the safety regulations;
   3. All of the above;

11. Each vessel must be supplied by the manufacturer:

1. With a passport of the established form;
2. With instructions for installation and operation;
3. All of the above;
4. There is no correct answer;

A test package for the profession "Technological compressor operator 5-6 categories" for OTF 2.

OTF 2. Operational maintenance of NPOs, vessels and apparatuses.2.1. Periodic maintenance NKO.2.2. Preparation of NPOs, vessels and apparatuses for repair, withdrawal from repair to reserve. 2.3. Maintenance of process pipelines 2.4. Maintenance of pressure vessels and apparatuses 2.5. Maintenance of instrumentation and A

SECTION 2. Operational maintenance of NPOs, vessels and apparatuses.

TRAINING MODULE 2.1. Periodic maintenance of NCO.

1. What must be marked on the valve handwheel?

1. Valve number according to the technological scheme;
2. Direction of fluid movement;
3. Valve number according to the technological scheme and the direction of fluid movement;
4. Direction of rotation "open-closed".

2. What groups are pipe fittings divided into?

1. Shut-off, lock-regulating, safety;
2. Shut-off, lock-regulating, signaling;
3. Gate valves, valves, valves;
4. Locking, cutting off.

3. Specify the possible reasons for the increase in the gas temperature at the discharge of a screw oil-filled compressor above 100 ºС.

1. Touching the rotating parts of the compressor;
2. Shut-off valve defective;
3. Deterioration of the graphite ring;
4. True a, b, c;
5. True b, c, d;
6. That's right;

4. What is the possible reason for the drop in oil pressure in the lubrication manifold of an oil-filled screw compressor:

1. Clogged fine oil filter;
   1. Check valve defective;
   2. Deterioration of the graphite ring;
   3. All causes are possible;

5. Complete the sentence: “The increase in pressure behind the 7VKG compressor above the norm may occur as a result of ...”:

1. Pollution of the fine oil filter;
2. Non-return valve malfunctions;
3. wear of the graphite ring;
4. True b, c;
5. True a, b, c;
6. That's right;

6. Complete the sentence: "Overloading the electric motor of the 7VKG compressor may occur as a result of ...":

1. Suction pressure rises above normal;
2. Increasing the discharge pressure above the norm;
3. Failure of compressor bearings;
4. Oil entering the compressor through suction;
5. True a, b, c;
6. True a, b, d;

7. What are the possible causes of increased oil leakage through the drain fitting of the oil-filled screw compressor 7VKG:

1. Deterioration of the graphite ring;
2. Rubber rings are torn;
3. Spring breakage;
4. Increasing suction pressure above normal;
5. That's right;
6. True a, b, c;

8. What determines the reliability and durability of the compressor unit:

1. Established uptime;
2. MTBF is average;
3. Installed resource before overhaul;
4. All of the above.

9. What is the failure criterion for the 7VKG compressor unit:

1. The resource of the screw pair;
2. Service life of graphite ring;
3. The resource of the rubber ring;
4. Service life of bearings;

10. Pipes, fittings, flanges, gaskets and fasteners used for pipelines, in terms of quality, technical characteristics and materials, must meet:

11. Name the result of which the piston compressor lubricator does not pump oil:

1. Gas regulator defective;
   1. Air lock in the oil pump;
   2. Malfunction of the lubricator drive;
   3. Too high oil level;

12. How are the cylinders of multi-stage opposed reciprocating compressors?

1. V-shaped;
2. horizontally;
3. rectangular;

13. Which of the following is fed into the compressor cooling jacket?

1. compressor oil;
2. methane;
3. nitrogen;
4. water;
5. antifreeze.

14. Why are all reciprocating compressors always built with dead space?

1. to prevent the piston from hitting the cylinder head;
   1. to adjust the performance of the compressor;
   2. to avoid wear of the cylinder sealing rings;
   3. to adjust the pressure on the discharge line;

15. How is the crankshaft and intermediate shaft assemblies of the Ajax gas engine compressor lubricated?

1. splashing oil;
2. a combination of oil splash lubrication and oil dip lubrication;

16. How is the Ajax gas motor compressor cylinders lubricated?

1. splashing oil;
2. using a manual lubrication system;
3. using a pressure lubrication system;
4. lubrication by immersion in oil;

17. At what stage does the working cylinder of a reciprocating compressor have the largest volume?

1. First;
2. Second;
3. The volumes of the cylinders are the same;

18. What pistons are used mainly in the operation of reciprocating compressors?

1. Plunger;
2. Disk;
3. differential;

19. Is compressor cooling required for staged compression:

1. Doesn't matter;
2. There is no correct answer;

20. What gate valve should be installed on the line after the gas separator SPPK if the pipe diameter is 114 mm?

1. ZKL 100-16.
2. ZKL 100-25.
3. ZKL 150-16..
4. There is no correct answer.

TRAINING MODULE 2.2. Preparation of NPOs, vessels and apparatuses for repair, withdrawal from repair to the reserve.

1. Determine the procedure for performing operations when taking the device out for repair:

Depressurization of devices;

Steaming of containers, devices;

Emptying containers, apparatuses;

Disconnection of equipment with stop valves from supply pipelines;

Answer: d-c-b-a

1. Emptying of containers, devices from condensate should be carried out:

process pumps in a closed system;

process pumps in an open system;

technological compressors in a closed system;

1. When disconnecting the equipment from the supply pipelines, the installation of metal plugs must be carried out at a pressure equal to:

atmospheric;

1 kgf/cm2 overpressure;

worker;

1. Steaming of containers, apparatus should be carried out:
2. without raising pressure in them with open hatches;
3. with raising the pressure in them to the working one;
4. with a rise in pressure in them to the permitted;

1. After preparing the installation (device) for repair, the following is compiled:

List of ongoing works;

The act of readiness of the object for repair;

List of used materials;

6. Complete the sentence: “Flange connections with paranitic gaskets are tightened ...

1. ... in a roundabout way "
2. ... by way of a cruciform bypass "
3. ... by pulling through one hairpin.

7. Which of the compressor screws is leading:

1. Left;
   1. Right;

8. Is it necessary to install metal plugs when replacing the heat exchanger tube bundle, if the shut-off valves are in good order?

1. Doesn't matter;

9. Is it necessary to install metal plugs when replacing gas compressor bearings if the shut-off valves are in good condition?

1. Doesn't matter;

10. What valves must be opened to release gas to the atmosphere before repairing the Ajax compressor?

1. purge valves only;
2. bypass valves only;
3. purge and bypass valves;

11. Under what changes in the cross section of current-carrying elements of lightning protection due to corrosion or melting, it is necessary to immediately notify the installation management and reflect the defect in the log?

1. When the cross section is reduced by more than 40%.
2. When the cross section is reduced by more than 50%.
3. When the cross section is reduced by more than 30%.

12. Choose the correct wording of the concept of the maximum permissible concentration (MPC) of harmful substances in the air of the working area:

1. Concentrations which, during daily work for 8 hours or for other durations, but not more than 41 hours per week, during the entire working experience, cannot cause diseases or abnormalities in the state of health detectable modern methods research in the course of work or in the remote periods of life of the present and subsequent generations;
2. Concentrations that, during daily work for 9 hours with a lunch break or for another duration, but not more than 45 hours a week, during the entire working experience cannot cause diseases or deviations in the state of health;
3. Concentrations that, during daily work for 11.5 hours or for another duration, but not more than 51 hours a week, during the entire working experience cannot cause diseases or deviations in the state of health, in the process of work or in the long-term life of this and subsequent generations.

13. Complete the sentence: “Zones class B-I- This…

1. ... areas located in rooms in which flammable gases or flammable liquids are emitted in such quantity and with such properties that they can form explosive mixtures with air under normal operating conditions, for example, when loading or unloading process equipment, storing or transfusing flammable liquids that are in open containers
2. ... zones located in rooms in which, during normal operation, explosive mixtures of combustible gases (regardless of the lower concentration limit of ignition) or flammable liquid vapors with air are not formed, but are possible only as a result of accidents or malfunctions "
3. ... zones located in rooms in which, during normal operation, explosive mixtures of combustible gases or vapors of flammable liquids with air are not formed, but are possible only as a result of accidents or malfunctions and which differ in one of the following features "
4. ... spaces near outdoor installations: technological installations containing flammable gases or flammable liquids, aboveground and underground tanks with flammable liquids or flammable gases (gas holders), racks for draining and loading flammable liquids, open oil traps, settling ponds with a floating oil film.

14. What does the lower concentration explosive limit (LEL) mean?

1. LEL is the concentration of gases and vapors in a liquid at which an explosion is possible;
2. LEL is the lowest concentration of gases and vapors in the air, at which an explosion is already possible, with an ignition pulse;
3. LEL - the concentration limit of explosion, at which an explosion is always possible at any concentration of vapors and gases in the air.

15. What does the Upper Explosive Limit (UEL) mean?

1. VKVV is the highest concentration of gases and vapors in the air at which an explosion is possible during an ignition pulse;
2. VKVV is the lowest concentration of gases and vapors in the air, at which an explosion is already possible, with an ignition pulse;
3. VKPV - concentration explosive limit, at which an explosion is always possible at any concentration of vapors and gases in the air;

16. The pump must be prepared for repair:

1. Plugged off from pipelines, freed from the pumped product, washed and steamed;
2. The pump motor must be de-energized and a warning label posted;
3. All of the above;

17. What work must be done before carrying out repairs that require opening the pump cavity?

1. Released from the product;
2. Power outage of the engine (the starting circuit of the pump motor must be disassembled);
3. Installation of metal plugs;
4. All of the above;

18. Which bolts should be released first when detaching the flanges?

1. lower;
2. medium;
3. upper;
4. doesn't matter;

19. What work must be done before carrying out repairs that require opening the cavity of the compressor driven by an electric motor?

1. Released from the product;
2. Power failure of the engine (the starting circuit of the compressor motor must be disassembled);
3. Installation of metal plugs;
4. Shut off the fuel gas supply;
5. All of the above.

20. What is the value of the maximum allowable concentration of hydrocarbons?

1. 300 mg/m3
2. 100 mg/m3
3. 0.3 mg/m3
4. 3 mg/m3

TRAINING MODULE 2.3 Process piping maintenance

1. How is an ice plug heated in a pipeline?

1. Ferry or hot water, starting from the end of the frozen section;
2. Steam only, starting at the end of the frozen section;
3. Using hot water and a gas burner, starting at the end of the frozen area.

2. What pressure is used to test pipelines for strength?

1. 1.1 of the maximum working pressure;
2. 1.25 of the maximum working pressure;
3. 1.5 of the maximum working pressure;
4. 1.75 of the maximum working pressure.

3. What is indicated on the tag of process pipeline fittings?

1. Number according to the technological scheme;
2. Serial number;
3. Valve brand;
4. Maximum pressure.

4. When choosing materials and products for pipelines, consider:

1. design pressure and design temperature of the transported medium;
2. properties of the transported medium;
3. properties of materials and products;
4. negative ambient temperature for pipelines located in the open air or in unheated premises;
5. positive ambient temperature for pipelines located in the open air or in unheated premises;

5. Why should valves be opened and closed slowly?

1. To avoid jamming of the gate;
2. To avoid the occurrence of water hammer;
3. To avoid thread stripping on the stem;
4. To avoid sudden loads on the system.

6. Pipes, fittings, flanges, gaskets and fasteners used for pipelines, in terms of quality, technical characteristics and materials, must meet:

1. properties of the transported medium;
2. regulatory and technical documentation for their manufacture;
3. maximum pressure of the transported medium;

1. Flanged;
2. Coupling;
3. Tsapkovaya;
4. Welded;

8. What fittings are not allowed to be used on pipelines subject to vibration?

1. From gray cast iron;
2. From ductile iron;
3. Made of carbon steel;
4. From alloy steel;
5. From bronze;

9. Pipelines passing through the walls or ceilings of buildings should:

1. Enclose in thermal insulation;
2. Apply external polymer insulation to them;
3. Enclose in a protective casing;

10. What is called the working pressure of the pipeline?

1. Safe overpressure, at which the specified mode of operation of fittings and pipeline parts is ensured;
2. The highest overpressure at a substance or ambient temperature of 20 ° C, at which long-term operation of fittings and pipeline parts is permissible, justified by strength calculations, with selected materials and their strength characteristics corresponding to this temperature;
3. The overpressure at which the hydraulic test fittings and parts of pipelines for strength and density with water at temperatures from +5°С to +40°С;

TRAINING MODULE 2.4 Maintenance of pressure vessels and apparatus

1. Depending on the corrosion rate of steels, medium aggressive media include media with a corrosion rate:

1. 0.01 - 0.05 mm/year;
2. 0.1 - 0.5 mm/year;
3. 1 - 5 mm/year;

2. What marking should be applied to the valve body?

1. Nominal bore in cm, nominal pressure in kg/cm2, direction of flow;
2. Trademark or brand of the manufacturer, brand of body material, direction of movement of the medium and conditional pressure in mm;
3. nominal bore in mm, nominal pressure in MPa, trademark of the manufacturer, brand of body material, direction of movement of the medium.

3. If the working pressure in the gas separator is 2 kgf/cm2, then what pressure should the SPPK safety valve be calibrated to?

1. At 2.3 kgf/cm2;
   1. At 2.4 kgf/cm2;
      1. At 2.5 kgf/cm2;

4. In what cases should a running gas separator be stopped immediately?

1. When the pressure rises above the allowed technical specification;
2. When the level rises above the permitted technical specification;
3. In case of failure of the gas-hydrocarbon condensate level indicator;

5. Complete the sentence: “The height of the protruding end of the bolt and stud above the nut should be ...

1. ... not less than 1 and not more than 3 thread pitches "
2. … not less than 3 mm”
3. ... depending on the thread pitch, but not more than 5 mm.

6. What is the target process for a heat exchanger?

1. Cooling and condensation of hot coolant;
2. Heating and evaporation of cold coolant;
3. Heating of cold and cooling of hot coolant;

7. The apparatus is called a heat exchanger:

1. Designed for separation of oil and gas;
2. Designed for heating and cooling oil and gas;
3. Designed for pumping oil and gas;

8. Mesh gas separators GS are designed for:

1. For preliminary purification of natural and associated petroleum gas from liquid;
2. For the final purification of natural and associated petroleum gas from air;
3. For the final purification of natural and associated petroleum gas from liquid;

9. How many phases are separated in GS-type gas separators?

1. One;

10. The gas separator brand GS is located:

1. Vertical;
2. Horizontally;
3. Angle 45°C;

TRAINING MODULE 2.5. Maintenance of instrumentation and A

1. What pressure gauges are most widely used in oil production?
2. Liquid;
3. Spring;
4. Devices with remote transmission of readings;
5. Cargo piston.

1. Complete the sentence: “The sensitive element of a differential pressure gauge is ...
2. ... bellows";
3. ... tubular spring ";
4. ... U-shaped tube ";
5. …membrane".
6. Complete the sentence: “A pressure gauge with a tubular spring, in terms of the way information about the measured pressure is presented, is ...
7. ... showing ";
8. ... registering";
9. ... signaling";
10. What pressure is created by the mass of the air column of the earth's atmosphere?
11. Absolute;
12. barometric;
13. excess;
14. Vacuum (discharge);
15. Complete the sentence: “The action of strain gauges is based on the use of the relationship between ...
16. ... plastic deformation of the sensing element and pressure";
17. ... plastic deformation of the sensing element and its movement”;
18. …elastic deformation sensitive element and pressure”;
19. Complete the sentence: "The principle of operation of expansion thermometers is based on ...
20. ... changes in body weight depending on temperature”;
21. ... changes in the density of bodies depending on temperature”;
22. ... change in the linear dimensions or volume of bodies depending on temperature ";
23. Complete the sentence: "The principle of operation of a thermocouple is based on ...
24. ... on the fact that different metals expand differently when heated”;
25. ... on the fact that the heating or cooling of contacts between conductors that differ in chemical properties is accompanied by the appearance of a thermoelectromotive force ";
26. ... on the fact that the volume of a liquid changes with a change in its temperature”;
27. ... on the measurement of calibrated copper or platinum resistance ";
28. What is 20°C equal to on the Kelvin scale?
29. 323 K;
30. 293 K;
31. 295 K;
32. 325 K;
33. Complete the sentence: “The principle of operation of manometric thermometers is based on ...
34. ... change in the mass of the filler of the thermal system depending on the ambient temperature”;
35. ... on the change in the pressure of the filler of the thermal system depending on the ambient temperature”;
36. ...on the measurement of calibrated copper or platinum resistance.
37. Complete the sentence: “The principle of operation of a bimetal thermometer is based on the fact that ...
38. ... different metals expand differently when heated”;
39. ... heating or cooling contacts between conductors with different chemical properties is accompanied by the appearance of a thermoelectromotive force”;
40. ... there is a change in the linear dimensions or volume of bodies depending on the temperature ";
41. Complete the sentence: “The principle of operation of radar level gauges is based on:
42. ... measuring the time of re-reflection of high-frequency radio waves ";
43. ... the principle of a hydraulic seal.
44. How do visual level gauges work?
45. A body immersed in a liquid is acted upon by a buoyant force equal to the weight of the liquid in the volume of the body;

1. How do float level gauges work?
2. According to the principle of pressure difference;
3. According to the principle of communicating vessels;

1. Complete the sentence: “The action of this type of ultrasonic and acoustic level gauges is based on the measurement of ...
2. ... the time of passage of an ultrasound pulse from the emitter to the surface of the liquid”;
3. ... time of re-reflection of high-frequency radio waves;
4. ... the time of passage of an ultrasound pulse from the emitter to the surface of the liquid and back";
5. How do hydrostatic level gauges work?
6. According to the principle of communicating vessels;
7. In accordance with the physical law "The pressure of a liquid is proportional to its depth";
8. In accordance with Newton's law, "A body immersed in a liquid is affected by a buoyant force equal to the weight of the liquid in the volume of the body";

16. What part of the reciprocating compressor does the arrow point to?

Answer: local control panel

17. What is the difference between associated gas and natural gas?

1. High content of methane;
2. High nitrogen content;
3. High content carbon dioxide;
4. High content of methane homologues.

19. How does the mass flow of gas change with a steady isothermal flow in the pipeline?

1. rising;
2. Decreases;
3. remains constant;

20. The hydrocarbon dew point, °C, is the temperature:

1. below which, at a certain pressure, hydrocarbon vapors do not condense from the gas;
2. above which, at a certain pressure, water vapor does not condense from the gas;
3. below which, at a certain pressure, water vapor does not condense from the gas;
4. above which, at a certain pressure, hydrocarbon vapors do not condense from the gas;

21. At what height is it allowed to use a technical pressure gauge with a nominal diameter of 160 mm?

1. From 2 to 3 meters;
2. Up to 2.30 meters;
3. More than 3 meters;
4. Up to 2 meters;

22. What is indicated on the calibration stamp of a technical pressure gauge?

1. quarter, year of verification, sign of the state verifier;
2. month, year of calibration, sign of departmental verification;
3. day, month, year of the next verification;
4. year of calibration of the manometer.

General expert opinion on OTF _____

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Signature of the expert/experts _______________________

Candidate's signature _______________________

Annex 1

Practice Test #1

Instructions for calculating the results:

For each correctly performed action, the candidate receives ... .. a score (a scale for evaluating the results is given). Threshold X points (80%).

FULL NAME. Candidate: ______________________________ Date ________

Task 1. Preparation for start-up and start-up of the Ajax piston motor compressor after repair

The duration of the preparation for the start of the Ajax piston motor compressor is 1 hour 30 minutes. Technical facilities and equipment Ajax reciprocating motor compressor, technological map of the gas compressor technology system gas compressor plant...

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check the means personal protection for suitability for use, in accordance with the current safety instructions. Familiarize yourself with the entries in the shift log about the work of previous shifts Prepare gas analyzers and take an analysis of the air environment at the site of the gas compressor unit in the presence of an understudy. Inform the manager about the start of operations to start up the gas compressor unit .Engage the automatic monitoring and control system together with the employees of the instrumentation and control service.Before inspecting an idle installation, check that the magneto grounding is disconnected (so that ignition does not occur in the power cylinders when manually turning the flywheel). substances. Fill the crankcase with oil to the correct level. Remove the side covers and pour oil on the surfaces of all crosshead guides and all piston rods until the reservoirs around the connecting rod head are full and oil flows to the bottom of the crankcase. Fill oil into the control box. Fill the cooling system with an aqueous solution containing a rust inhibitor or antifreeze, which must be added before the solution is added to the cooling system. Disconnect the oil lines and manually fill the oil pumps so that the oil completely fills the oil lines. Bleed gas through the section of the fuel line as close to the engine as possible so that the gas completely expels air from the gas supply line. Check for mud tank fuel injection and hydraulic lines. If necessary, clean, fill with Ajax hydraulic fluid and bleed the hydraulic lines. Call the mechanics to pre-start the engine compressor cylinders. Before starting the unit, the main bearings must be lubricated with a manual oil pump, making 50 strokes. Turn the flywheel by hand one turn to make sure in the free movement of internal parts. Open the valve on the starting motor supply line. After the flywheel reaches 50 rpm, open the fuel gas supply valve to let fuel into the system. After the ignition in the cylinders begins, close the gas supply valve to the starting motor. Use the regulator knob to adjust the speed of the motor compressor. Check the oil supply and adjust if necessary. Let the engine run for 30 minutes. open the shut-off valve on the discharge line. Close the bypass line. Open the shut-off valve on the suction line Check the circulation of water in the cooling system. Conduct an external inspection of the compressor unit and make sure that there are no gas and oil leaks, as well as that there are no abnormal noises. Record the technological mode of operation of the compressor unit in the regime sheet. installation. Make a record of the work done in the shift log. Number of points

Task 2. Preparation for start-up and start-up of the Solar Centaur 40 S gas turbine unit with the YORK-M 538 A C-1400 A / 1410 compressor.

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check personal protective equipment for suitability for use in accordance with current safety instructions. on the work of the previous shifts Prepare gas analyzers and take an analysis of the air environment at the site of the gas compressor installation in the presence of an understudy. Inform the manager about the start of operations to start up the gas turbine unit Perform an external inspection of the gas turbine unit. parts of the equipment do not come into contact with any foreign objects. Check the oil levels in the oil tanks of the compressor and turbine, as well as the level in the oil sprayer of the starting engines, top up if necessary. The oil levels in the oil tanks should be at the upper marks. Check the correct operation of the oil heaters in the compressor oil tank, which should be turned on 24 hours before start-up. The oil temperature must not be lower than 60°C. Check the oil temperature in the turbine oil tank: not lower than the oil heater switch-on setting in the tank of 18.3°C. Set all manual valves of the compressor and turbine to the normal operating position. and controls. Open the taps and valves on the gas supply and return lines to the compressor oil cooler. Set all controls to the "Auto" position and make sure they are correctly set to normal operating parameters. the corresponding power supply cells of these pumps must be set to the "Auto" position. Make sure that the charger switch is in the ON (On) position, check the operation of the charger, the DC voltage must be within 24V. Make sure that the positions of the oil filter bypass valves are fixed compressor and turbine, one of the filters of the compressor and turbine should be in operation. Make sure that the drain valves of the oil filters are in the closed position. Make sure that the manual valve for supplying gas to the turbine is in the open position. Open the pneumatically actuated shut-off valve for fuel gas supply to the ROV-1500A/1525A turbine, open from the central control room. Check fuel gas pressure, it should be within 1172÷1551 KPa. The starting gas supply valve is adjusted to supply a certain amount of gas to the starting motors and it is not allowed to change its position. Check the opening of the oil supply and return valves from the oil cooler. In cold weather, the oil cooler must be preheated with coolant before starting. Check that all control system switches inside the control console are in the closed ON position. Check that the OFF/RUN key switch is in the RUN position. . Press the Local switch and check that the indicator is lit. Verify that the menu selection screen appears on the driver's display. Check for fault indications. If there are no problems and the system is ready to start, the READY indicator light will turn on. If the READY indicator does not light up, then press and release the ACKNOWLEDGE switch (acknowledgement) and the RESET switch (reset). The READY indicator should light up. This indicator will not illuminate for any remaining and displayed faults. After troubleshooting, the ACKNOWLEDGE and RESET switches must be pressed again to clear the trouble messages. The XCV-1400/XCV-1401 anti-surge valves can only be controlled from one of the two control consoles. On the display of the control console of the required compressor, set the screen "Program constants" and set the constant at number 60 with the cursor. By pressing the Ctrl and Enter buttons, set the constant 1. manual control HV-1421,1422,1423,1424 on the suction lines from V-1450A, V-1460A, V-1470A and discharge to E-1420A must be in the closed position, and when C-1410 is operating - in the open position. Equalize the pressures in suction and discharge lines of the compressor by opening a manually operated valve K-140/K-141. After the pressures equalize (gas hiss stops), close the valve. Drain liquid propane from the compressor housing. To do this, set the "operational summary" screen on the display of the control console, set the "asterisk" to the inscription "Drain" and simultaneously pressing the Ctrl and Enter buttons open the electro-pneumatic valve on the drain line from the YV 402 compressor. propane from each compressor stage by monitoring the flow through the FG 402 sight glass until only propane gas exits the compressor housing. close manual taps and close the ROV 402 on the control console by pressing the Ctrl and Enter buttons. Start the oil cooler fan from the central control room. Check that the manual dampers are set to the positions required for the ambient temperature. Set the desired compressor suction pressure set point. To do this, on the display of the control console, set the "Process control" screen, set the "asterisk" to the inscription "suction" and use the buttons on the control panel Increase (increase) and Decrease (decrease) to set the desired suction pressure setting value. On the "Operational summary" screen, set system operation mode to "Normal". Verify that the compressor inlet vane control actuator is in the "Auto" position. Verify that the valve control system is in "Auto" mode on the F5 Valve System screen. is in turbine cranking mode and the water flush mode is disabled. Briefly press the "Start" start switch. Once the start sequence has begun, the Local / Remote switch must be switched to Remote (remote). of the gas turbine unit and make sure that there are no gas and oil leaks, as well as that there are no abnormal noises. .Points

Task 3. Starting the GS gas separator

The duration of the launch of the gas separator GS 1 hour 30 min. Technical means and equipment GS gas separator, control and regulation devices, installation flow chart, installation flow diagram, technological regulations.

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check personal protective equipment for suitability for use in accordance with current safety instructions. about the work of the previous shifts. gas outlet valve from the separator and build up pressure to the operating pressure in accordance with the technological regulations. The increase in pressure should occur smoothly, without hydraulic shocks in the following order: by 0.25 Rrab; by 0.5 Rrab; by 0.75 Rrab; on Rrab. With delays at each pressure for 15 minutes. Inspect the separator and equipment for leaks. Undermine the safety valve by briefly forcibly lifting the valve shutter with a manual drive. mixture on the inlet inlet pipeline. When opening the gate valve at the inlet to the separator, monitor the readings of the pressure gauge, the liquid level in the separator. After commissioning, re-inspect the separator equipment for the absence of comments in its operation, in accordance with the requirements of the rules. Make an entry in the shift log about the work performed. Report on the start-up of the separator to the person responsible for the safe operation of this vessel. Every two hours, inspect the equipment with a record of the operating parameters in the mode. Record the technological mode of operation of the gas separator in the regime sheet. work in the shift log. Number of points

Task 1. Determine the malfunction of the installed pressure gauge, replace the faulty pressure gauge. Place of installation - GS gas separator with a working pressure of 2 kgf/cm2.

The duration of the installation of the pressure gauge - 20 minutes.

Technical means and equipment gas separator GS pressure gauge, control pressure gauge, three-way valve, open-end wrenches, FUM tape, plant flow chart, plant flow diagram

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check overalls, safety shoes and personal protective equipment Check the safety of the work (fitting and selection valve for leaks and freezing , completeness of the lambs, their fastening.) Set the three-way valve to the “closed” position. Set the three-way valve to the “open” position. Record the pressure gauge readings. If the pressure drops to zero, then the pressure gauge is OK. The action is over. If the pressure has not dropped to zero, then the pressure gauge is not working. The pressure gauge is being changed. Select one serviceable, verified pressure gauge with the correct scale and working pressure measurement limit from the proposed working capital. Select the correct technical means for carrying out the work (seal gasket, spark-proof tool) Close the pressure tap on the three-way valve pressure gauge. Open the purge valve three-way valve, bleed the residual pressure on the extraction fitting and pressure gauge to "0". Check that there is no passage through the shut-off valve of the extraction valve Using an S19 wrench, unscrew the faulty pressure gauge, remove the old gasket, clean the threaded connection and the gasket installation site Install the new gasket correctly. Screw in a new pressure gauge on the extraction fitting by hand, then tighten the threaded connection with an open-end wrench. Using a control pressure gauge, make sure that the readings of the installed pressure gauge are correct. Hand over the faulty pressure gauge to the site foreman, put the tool in a cabinet, remove workplace.Points

Task 1. Stopping the Ajax piston motor compressor

The duration of stopping the piston motor compressor Ajax 1 hour. Technical facilities and equipment Ajax reciprocating motor-compressor, flow chart of gas compressor plant, flow chart of gas compressor plant….

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Receive an order to stop the compressor from the plant manager (foreman) Check personal protective equipment for suitability for use, in accordance with current instructions on safety precautions. Familiarize yourself with the entries in the shift log about the work of previous shifts Prepare gas analyzers and take an analysis of the air environment at the site of the gas compressor unit in the presence of an understudy. Inform the manager about the start of operations to stop the gas compressor unit inspection of the compressor unit and make sure that there are no gas and oil leaks. -in points

Task 2. Shutdown of the Solar Centaur 40 S gas turbine unit with the YORK-M 538 A C-1400 A / 1410 compressor.

The duration of the preparation for the launch of the Solar Centaur 40 S gas turbine unit with the YORK-M 538 A C-1400 A / 1410 compressor is 1 hour 30 minutes. Technical facilities and equipment gas turbine unit "Solar Centaur" 40 S with compressor "YORK-M 538 A" C-1400 A/1410, technological map of the gas compressor unit, technological scheme of the gas compressor unit….

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Receive an order to stop the gas turbine unit from the head of the installation (foreman) Check personal protective equipment for suitability for use, in accordance with applicable safety instructions. Familiarize yourself with the records in the shift log about the work of the previous shifts. Prepare gas analyzers and take an analysis of the air environment at the site of the gas compressor installation in the presence of an understudy. external inspection of the gas turbine unit and make sure that there are no gas and oil leaks. Call the personnel of the instrumentation and automation service to turn off the automatic monitoring and control system of the compressor unit. Report the shutdown of the compressor unit and the identified comments to the plant manager.

Task 1. Take readings from the secondary instruments of instrumentation and automation and fill in the regime sheet of the compressor unit. Venue - operator.

Technical means and equipment compressor unit, flow chart of gas compressor unit, flow chart of gas compressor unit, clean regime sheets, pen, pencil ….

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Take readings from secondary devices in the control room.

Task 1. Perform an external inspection of the screw gas compressor unit 7VKG-50/7, justify your actions

Technical means and equipment screw gas compressor unit 7VKG-50/7, control and regulation devices, installation flow chart, installation flow diagram, process regulations.

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check overalls, safety shoes and personal protective equipment Read the entries in the shift log about the work of previous shifts Prepare gas analyzers Take an analysis of the air environment on the site at the gas compressor unit in the presence of an understudy Check the availability and suitability of fire extinguishing equipment Check the condition of the grounding devices at the gas compressor unit and technological pipelines; Check the condition of the stairs and service platforms Check the approaches to the equipment for the presence of foreign objects that interfere with operation and maintenance; Check the presence and serviceability of fences, protective covers of rotating parts of the equipment, protective equipment; Check the serviceability of lighting, the presence of explosion-proof ceiling lamps on the lamps, the integrity of pipe wiring and switch housings .Check the presence of inscriptions on the inlet and outlet pipelines indicating the nature of the transported medium;Check the operation of supply and exhaust ventilation (if the compressor is located in the room); for oil and gas leakage; Make sure that there are no oil or gas leaks through the stuffing box seals. Check the availability, serviceability and suitability of the instrumentation of the compressor unit on the control panel, remote and local control unit; a plate on the SPPK indicating: Serial number of the valve Set pressure, RuDate of the next revision and calibration Based on the results of the inspection, draw a conclusion about the technical condition of the gas compressor unit and the possibility of its further operation. ) Number of points

Task 2. Perform an external inspection of the Solar Centaur 40 S gas turbine unit with the YORK-M 538 A C-1400 A / 1410 compressor, justify your actions

Duration of execution - 30 min.

Technical facilities and equipment Solar Centaur 40 S gas turbine unit with YORK-M 538 A C-1400 A / 1410 compressor, control and regulation devices, plant flow chart, plant flow diagram, process regulations.

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check overalls, safety shoes and personal protective equipment Read the entries in the shift log about the work of previous shifts Prepare gas analyzers Take an analysis of the air environment on the site near the gas turbine unit in the presence of an understudy Check the availability and suitability of fire extinguishing equipment Check the condition of the grounding devices on the gas compressor unit and process pipelines; Check the condition of the stairs and service platforms Check the approaches to the equipment for the presence of foreign objects that interfere with operation and maintenance; Check the presence and serviceability of fences, protective covers of rotating parts of the equipment, protective equipment; Check the serviceability of lighting, the presence of explosion-proof ceiling lamps on the lamps, the integrity of pipe wiring and switch housings .Check the presence of inscriptions on the inlet and outlet pipelines indicating the nature of the transported medium;Check the operation of supply and exhaust ventilation (if the compressor is located in the room); control valves for oil, gas and air leaks; Make sure that there are no oil or gas leaks through the stuffing box seals. Check normal conditions operation of the compressor and turbine (temperature, pressure, smooth operation without knocks and vibrations, oil and propane flow through the sight glasses). Check the oil levels in the compressor and turbine oil tanks and, if necessary, add oil. drive shaft. If the level in this tank rises rapidly, it indicates wear on the mechanical shaft seal. condensate at the stages of the standby compressor. If there is condensate on the steps, purge into the drainage tank V-4900. Check the presence, serviceability and suitability of the instrumentation of the compressor unit on the control panel, remote and local control unit; indicating: Valve serial numberSetting pressure, РDate of the next revision and calibration Based on the results of the inspection, draw a conclusion about the technical condition of the gas compressor unit and the possibility of its further operation. Make an entry in the shift log about the results of the bypass. in points

Task 1. Select a gate valve from the proposed ones and prepare valves according to the specified technological parameters. Justify your choice.

Conditions: pick up LCL for pipeline Ø219 with Pwork. = 8.2 kgf / cm2 and Trab. = - / + 50 ° С, working medium - gas condensate.

Instructions for calculating the results:

Threshold 5 points (80%).

Duration of execution - 10 min.

Venue: UKK training ground

Technical means and equipment: cast-iron, steel gate valves with a symbol on the body Du150,200,250.

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Defined symbol on valvesThe valve is selected in accordance with technological parameters(steel, wedge, cast, 2nd modification, Du-200, Ru-16) The symbols are deciphered and the characteristics of the application of this valve are described. The choice is justifiedNumber of points

Task 1. Clean the oily pipe and clean the section of the intake and distribution pipeline from rust and corrosion.

Instructions for calculating the results:

2 actions meet the criterion completely, 1 - actions meet the criterion partially, 0 - actions do not meet the criterion.

Threshold 11 points (80%). Recheck

Venue: UKK training ground.

Technical facilities and equipment are presented: Pipeline section, overalls, PPE, household equipment, a bucket, metal brushes and scrapers, cleaning material and cotton rags, boxes for rags, a can of oil, paint and a brush.

Expert observation map

Criteria for evaluating labor actions Registration of actions Expert comments Complies (2 points) Partially complies (1 point) Does not comply (0 points) Necessary special clothing and protective equipment are selected, put on correctly. work is done only by him. Rust from the pipe is cleaned with a scraper, corrosion - with a brush. The cleaning product is collected in a bucket. Clean rags are correctly selected, the oily section of the pipe is wiped dry, the rags are put away in a box with dirty rags. The oily soil was collected in a bucket. The surface of the pipe cleaned from corrosion and rust was painted over. The workplace was removed. Equipment and tools have been cleaned and placed in storage areas. Overalls removed. Number of points

Task 1. Perform an external inspection of the GS gas separator, justify your actions

Duration of execution - 20 min.

Technical means and equipment GS gas separator, control and regulation devices, installation flow chart, installation flow diagram, process regulations.

Observation parameters (criteria for evaluating actions) Done correctly (2 points) Done with violations (1 point) Not done (0 points) Check overalls, safety shoes and personal protective equipment Read the entries in the shift log about the work of previous shifts Prepare gas analyzers Take an analysis of the air environment at the site of sedimentation tanks Check the availability, completeness and suitability of primary fire extinguishing equipment. Check the condition of the grounding devices on the gas separator and pipelines, the reliability of their connection to the common ground loop. Check the condition of industrial and storm sewers, the absence of oil contamination and foreign objects on the gas separator site. design, integrity of pipe wiring and switch housings. Check the presence of inscriptions on the inlet and outlet pipelines indicating the nature of the transported medium and arrows indicating the direction of movement of gas and liquid, tightness of pipelines. Check the condition of all hatches and flange connections on the device, the absence of gas and liquid passes , completeness of their fasteners and fastening. Check the serviceability and operability of the shutoff valves, the ease of rotation of the handwheels, the completeness and correct installation of the fasteners in the flange connections of the shutoff valves. There should be arrows on the handwheel indicating the direction of rotation when opening and closing the valve. Check the presence of plates indicating the number of the valve according to the technological scheme. If there are gaps, tighten the stuffing box seal. Check the data on the registration plate, where the following should be indicated: - technological index of the device - factory number - registration number - permitted operating pressure - timing of the next internal inspection and hydraulic test Check the availability, serviceability and suitability of instrumentation. , Ru- Dates next revision and calibration Based on the results of the inspection, draw a conclusion about the technical condition of the gas separator and the possibility of its further operation. Make an entry in the shift log about the results of the round.21. Report the results of the inspection to the head of the installation (senior shift) Number of points

Task 1. Choose from the proposed technical pressure gauges suitable for measuring working pressure and explain your choice. Place of installation of the pressure gauge - gas separator GS with a volume of 8 m3 with a working pressure of 4 kg / cm2. The level of the observation site is 2 m from the installation site of the pressure gauge.

The duration of the selection of a suitable pressure gauge is 10 minutes. Technical means and equipment pressure gauges of various types, suitable and unsuitable, technological map of the installation, technological scheme of the installation ....

Criteria for evaluating labor actions Registration of actions Expert comments Complies (2 points) Partially complies (1 point) Does not comply (0 points) Select all pressure gauges with a scale so that the working readings are in 2/3 of the scale. : hull damage; damage to the threaded connection; glass damage; arrow readings are not at zero; lack of a seal; lack of brand; verification period. Draw a red line or set a red arrow in accordance with the permitted pressure on the selected pressure gauge. Make sure that the arrow of the selected pressure gauge is at zero. Score

Control and measuring materials are a tool for assessing the compliance of the candidate's professional competencies with the requirements of professional activity, presented in the professional standard.

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Exam tickets are compiled according to the requirements of the professional standard on demand qualification requirements to professions and professional standard of education

Order of the Ministry of Labor and social protection RF dated September 9, 2015 N 619n "On approval professional standard"Worker for the operation of compressor units of a thermal power plant"

Order of the Ministry of Labor of Russia dated December 21, 2015 N 1070n (as amended on March 17, 2016) "On approval of the professional standard "Employee for the maintenance of pumping or compressor units of the engineering infrastructure of housing and communal services (in water and heat supply systems)"

Order of the Ministry of Education and Science of Russia dated August 2, 2013 N 917 (as amended on March 25, 2015) "On approval of the federal state educational standard secondary vocational education by profession 240101.02 Engineer of technological pumps and compressors"

Professional standard requirement (Order of the Ministry of Education and Science of Russia dated 02.08.2013 N 917)

PM.01Maintenance and repair of process compressors, pumps, compressor and pumping units, gas drying equipment

have practical experience:

maintenance and repair;

performing plumbing work;

ensuring safe working conditions;

be able to:

follow the rules for the maintenance of pumps, compressors, gas dehydration equipment;

prepare equipment for repair;

repair equipment and installations;

observe the rules of fire and electrical safety;

prevent and eliminate malfunctions in the operation of pumps, compressors, gas dehydration equipment;

exercise control over waste generated during the production of products, wastewater, emissions into the atmosphere, methods of disposal and processing;

to fulfill the requirements of labor protection, industrial and fire safety during the repair of equipment and installations;

assess the state of safety, ecology at gas dehydration units, in pumping and compressor units;

draw up technical documentation;

know:

device and principle of operation of equipment and communications;

maintenance rules;

layout of shop pipelines and inter-shop communications;

rules and instructions for the production of hot and gas hazardous work;

rules for maintaining technical documentation;

technology for draining and pumping liquids, gas drying;

rules for preparing for repair and repair of equipment, installations;

pipelines and pipeline fittings;

ways to prevent and eliminate malfunctions in the operation of pumps, compressors, gas dryers;

labor safety rules during repairs

PM.02Operation of process compressors, pumps, compressor and pumping units, gas drying equipment

As a result of studying the professional module, the student must:

have practical experience:

conducting the process of transportation of liquids and gases in accordance with the established regime;

regulation of the parameters of the process of transportation of liquids and gases in the serviced area;

conducting the gas drying process; regulation of the technological mode of gas drying;

operation of electrical equipment;

ensuring the safe operation of production;

be able to:

ensure compliance with process parameters;

operate equipment for transporting liquid, gas and gas drying;

control the consumption of transported products according to instrumentation readings;

take samples for analysis; carry out bottling, packaging and transportation of products to the warehouse;

keep records of the consumption of products, operated and fuels and lubricants, energy resources;

maintain reporting and technical documentation;

comply with the requirements of labor protection, industrial and fire safety;

comply with the rules of environmental safety;

know:

the main regularities of the technology of transportation of liquid, gas;

basic laws of gas drying technology;

technological parameters of processes, rules for their measurement;

purpose, device and principle of operation of automation equipment;

schemes of pumping and compressor units, rules for their use;

diagrams of gas drying installations;

industrial ecology;

fundamentals of industrial and fire safety;

labor protection;

metrological control;

rules and methods of sampling;

possible violations of the regime, causes and remedies, warning;

maintenance of reporting and technical documentation on the operation of equipment and installations MDK.02.01. Operation of equipment for transportation of gas, liquids and gas drying OK 1

Themes:

Topic 1. General requirements for compressor units and pipelines

Topic 2. System for monitoring, control and emergency automatic protection of compressor units

Topic 3. Operation of electrical equipment of thermal power plants

Topic 4. Maintenance and repair of compressor units

Regulatory and technical literature:

Order of the Ministry of Labor and Social Protection of the Russian Federation of September 9, 2015 N 619n "On approval of the professional standard "Employee for the operation of compressor units of a thermal power plant"

Order of the Ministry of Labor of Russia dated December 21, 2015 N 1070n (as amended on March 17, 2016) "On approval of the professional standard "Employee for the maintenance of pumping or compressor units of the engineering infrastructure of housing and communal services (in water and heat supply systems)"

Order of the Ministry of Education and Science of Russia dated 08/02/2013 N 917 (as amended on 03/25/2015) "On approval of the federal state educational standard of secondary vocational education by profession 240101.02 Engineer of technological pumps and compressors"

PB 03-581-03 "Rules for the design and safe operation of stationary compressor units, air ducts and gas pipelines"

PB 03-582-03 "Rules for the design and safe operation of compressor units with reciprocating compressors operating on explosive and harmful gases"

Compressor unit operator, 4th category

1. Classification of compressors.

Appointment. The compressor is used to compress, increase pressure and move (transport) air or gas. The compressor is the basis of the compressor unit, which, in addition to it, includes auxiliary interstage devices, a drive, gas pipelines and various systems(lubricating, cooling and regulating).

Compressors are used in the chemical, metallurgical and mining industry, energy, mechanical engineering, construction, transport and other sectors of the national economy to ensure the technological process of production and for auxiliary purposes.

Classification. Compressors are classified according to purpose, principle of operation, final pressure, supply, method of heat removal, type of drive, type of installation.

By appointment compressors are classified depending on the type of production in which they are used (chemical, gas pumping, general purpose, etc.), as well as for their intended purpose (starting air, brake air, pumping, etc.).

By operating principle compressors are divided into volumetric and dynamic. The first include reciprocating piston compressors, rotary (vane ) with rotational movement of the displacing pistons, screw with variable pitch rotors and membrane, in which the membrane plays the role of a piston. Dynamic compressors (turbocompressors) are divided into centrifugal with a gas flow directed radially from the center to the periphery, and axial with a gas flow moving in the axial direction when the wheel with blades rotates.

By final pressure there are low-pressure compressors that create a gas pressure of 0.2 ... 1.0 MPa (2 ... 10 kgf / cm 2), medium -1 ... 10 MPa (10 ... 100 kgf / cm 2), high -10 ... 100 MPa (100 ... 1000 kgf / cm 2) and ultra-high pressure - over 100 MPa (1000 kgf / cm 2).

By filing compressors are divided into machines with low (up to 0.015 m: 7s), medium (0.015 ... 1.500 m 3 / s) and large (over 1.500 m 3 / s) feed, different for each type of compressor (volumetric or dynamic).

By method of heat removal compressors are divided into machines with cooling (air or water) of the compressor and the injected gas;

By drive type- for compressors with an electric motor, steam or gas turbine, internal combustion engine;

By type of installation- stationary (on a foundation or special supports) and mobile (on a chassis or frame). 2. Device and purpose of separators and filters that are part of compressor units and requirements for them.

Separators (Oil-moisture separators) are used to purify gas from oil and moisture (in turbochargers - from moisture). Separation occurs when there is a sharp change in the direction of the gas flow due to the different density of the gas and the drops of oil and moisture contained in it. The direction of the gas flow is changed by installing additional partitions in the cylindrical body, placing the gas inlet and outlet pipes at an angle, or making the inlet pipe in the form of a branch that changes the flow direction (Fig.

2.45. The intake (suction) of air by an air compressor should be carried out outside the compressor station at a height of at least 3 m from the ground level.

For air compressors with a capacity of up to 10 m 3 /min., having air filters on the machine, it is allowed to take air from the compressor station room.

2.46. To clean the intake air from dust, the compressor intake air duct is equipped with a filter protected from atmospheric precipitation.

The design of the filter device should provide safe and convenient access to the filter for cleaning and disassembly.

The filtering device must not be deformed or vibrate when air is drawn in by the compressor.

2.47. Filtering devices may be individual or common to several compressors. In the latter case, for each compressor, it should be possible to disconnect it (in case of repair) from the common suction pipeline.

2.48. For enterprises where high dust content of the intake air is possible, compressor units should be equipped with filters and other special equipment in accordance with the project documentation.

2.49. In compressors equipped with end coolers, moisture-oil separators should be provided on the pipelines between the cooler and the air collector. It is allowed to combine the end cooler and moisture-oil separator in one apparatus.

2.50. If it is necessary to have deeply dried air, in addition to the end coolers, the compressors are equipped with special drying units. Dehumidifiers operating according to the method of freezing moisture with the help of refrigeration units must be located in rooms isolated from the compressor unit.

Dehumidifiers operating on the method of absorbing moisture with solid sorbents and using non-toxic and non-explosive refrigerants can be located in the engine room of the compressor unit.

3. Preparation for start-up, start-up and stop of the reciprocating compressor.

Compressor preparation for start-up

To prepare the compressor for start-up, the following steps must be taken:

– make an external inspection of the equipment, make sure that there are no foreign objects in the compressor service area, that the compressor is equipped with thermometers and pressure gauges;

- check the reliability of tightening the fastening of the moving parts of the coupling halves, anchor bolts;

– check the level and quality of oil in the circulation lubrication oil tank and lubricators for lubricating cylinders and seals; the oil level should not be lower than the middle of the indicator glass; if necessary, add oil;

- check the cleanliness of the oil tank filter mesh, circulation lubrication system;

– clean the filter of the circulating lubrication unit with scrapers;

- check the closing of the shut-off valve on the bypass pipes of the oil cooler;

- check the position of the three-way valve on the circulating lubrication pipeline - the valve must connect the pressure fitting of the pump to the coarse filter;

– turn on the electric motors of the pumps for circulation lubrication and lubrication of cylinders and seals;

- check the oil supply to all points for supplying lubrication of cylinders and seals, using the cocks of the oil check valves;

– check the opening of shut-off valves at all points of lubrication supply, oil pressure for lubricating the movement mechanism;

- using a turning mechanism, turn the compressor shaft 3-4 turns to better distribute the oil over the rubbing surfaces and check that there are no foreign objects in the compressor

– turn off the turning mechanism by placing the handle in the "off" position and turn on the turning mechanism electric motor;

- include in the operation of the instrumentation and A systems;

- open the valves on the supply and discharge of water to the compressor;

– check the water supply to the compressor cooling points using test taps;

– open the shut-off valves installed on the return water pipelines near the bypass cooler;

- check the opening of the valves on the pressure gauges;

– close the shut-off valves, the electric valve on the gas discharge line to the candle, the purge valves on the purge manifold (the valves on the low-pressure nitrogen purge pipeline must be closed and plugged with passport plugs);

- open the shut-off valves on the CVSG pipelines near the bypass cooler, the shut-off valves on the discharge and intake manifolds must be closed;

– turn on the blower system for the compressor motor.

If it is necessary to purge the system of the compressor unit after any type of repair, perform the following measures:

- open the shut-off valves, the electric valve on the gas discharge line to the candle;

- remove the plugs and open the valves on the low-pressure nitrogen supply line for purge;

- close the shut-off valves on the bypass pipeline between the intake and discharge manifolds;

- blow out the buffer tanks of the compressor intake and discharge;

– close the shut-off valves, the electric valve on the gas discharge line to the candle, the purge valves on the purge manifold;

- open the shut-off valves on the bypass pipeline between the intake and discharge manifolds;

– close the valves and install plugs on the low-pressure nitrogen supply line for purge.

The compressor is started in the following sequence:

- open the shut-off valves and the electric valve on the intake manifold;

– to displace nitrogen from the system of the compressor unit with the working medium into the atmosphere through a candle, blow through the intake and discharge manifolds, buffer capacities of the compressor discharge;

- close the shut-off valves, the electric valve on the gas discharge line to the candle;

- if there is permission to start - turn on the main electric motor of the compressor; within 5 ... 10 minutes, circulate the working medium through the bypass line, check the oil supply to all points of the compressor lubrication system, the serviceability of the movement mechanism and intake and discharge valves.

- open the shut-off valves located on the compressor discharge manifold, gradually reducing the flow area of ​​the shut-off valves on the bypass line of the compressor, apply the working medium for circulation through the bypass cooler, close the shut-off valves on the bypass line of the compressor;

– gradually set the required flow rate of the working medium to the system of the reactor block, gradually reducing the flow area of ​​the shut-off valves on the line for supplying the working medium to the bypass cooler;

– inspect the operating compressor, discharge and intake manifolds;

- after starting the compressor, make an entry in the rotation log about the start time and the technical condition of the compressor.

Compressor stop

Stopping the compressor is carried out in the following sequence:

Slowly open the shut-off valve on the compressor bypass line, while closing the shut-off valve located on the compressor discharge manifold.

Close the shut-off valve located on the intake manifold of the compressor.

Stop the compressor main motor. After the compressor is completely stopped, it is necessary to stop the main motor blower, the cylinder and seal lubrication unit, and the circulation lubrication unit.

Open shut-off valves, electric valve on the gas discharge line to the candle.

5...10 minutes after the compressor stops, it is necessary to stop the supply of circulating water to the compressor oil cooler. Make a record in the logbook of the time and reason for stopping the compressor. After the compressor stops, record the time and reason for the compressor stop, and its technical condition.

4. The system of planned preventive maintenance of equipment, its essence and goals.

The PPR system is a set of organizational and technical measures for the supervision, maintenance and repair of equipment carried out according to a pre-planned plan and contributing to an increase in its durability with optimal operating parameters, accident prevention, an increase in the culture of operation and the level of organization of repairs.

The PPR provision provides for the following types of repair and overhaul maintenance:

overhaul maintenance

Maintenance

Maintenance

average repair

overhaul.

Maintenance is a set of works to monitor the technical condition of equipment, timely warning, manifestation of a malfunction, replacement of wear parts, which entails _ minor disassembly of equipment. This specifies the volume

preparatory work for the current, medium, and overhauls. For the maintenance period, the equipment is switched off from the technological cycle (stops). At the same time, only such equipment malfunctions are detected and immediately eliminated, in the presence of which it cannot be operated normally until the next repair. Maintenance is carried out by repair personnel under the guidance of a repair service mechanic.

5. Causes of fires during the operation of compressor units and fire prevention measures.

At oil and gas refineries, where large quantities of combustible gases and liquids are processed and stored, fire prevention measures are organically linked to the technological process itself. In factories, fires can occur as a result of various organizational and technical shortcomings, for example:

deviation from the established mode of operation of the installation (temperature, pressure) and irregular preventive inspection of equipment;

non-compliance with fire-fighting requirements when placing and arranging the equipment of the installation;

non-compliance with the fire regulations established for this installation.

All fire safety measures can be divided into two groups - the prevention (prevention) of fires and the elimination of a fire that has already occurred.

Fire prevention is a set of measures aimed at preventing fires and limiting their size.

Elimination of the causes of fires is achieved the right choice and arrangement of technological and auxiliary equipment. Limitation of the spread of fire is carried out: by measures of the design and construction order, including proper planning and placement of buildings and equipment; the use of structures and materials that meet the requirements of fire regulations; arrangement of fire zones and embankments.

Measures are provided to ensure the evacuation of people and property in case of fire. This includes: the arrangement of the required number of stairs, doors, passages both on the territory of the installations and in the premises; placement of devices in compliance with the required width of the passage or passage between them; emergency lighting device and others.

Preventive measures also include ensuring the successful extinguishing of a fire in the event of a fire.

For example, the device of roads for free access by frying machines to buildings and structures; communication with the fire brigade; providing the enterprise with a sufficient amount of the necessary fire extinguishing means (fire extinguishers, water, sand, etc.).

An important role in ensuring fire safety is assigned to the heads of workshops, installations, and foremen. Being responsible for fire safety at their site, they are obliged to develop fire safety instructions together with the fire department, train their subordinate personnel in the measures to be taken in the event of a fire, as well as the rules for using fire extinguishers.