Safety operation specification for air compressor

Air compressor is one of the main mechanical power equipment of many enterprises, and it is very necessary to maintain its safe operation.

1 Preparation before driving

(1) Keep the lubricating oil in the oil pool within the scale range, and the brand of the lubricating oil should meet the requirements.

(2) Check the amount of oil in the oil injector and should not be lower than the scale line.

(3) Turn the manual wheel before driving and fill the cylinder with oil. Uniform and sufficient oil droplets should be seen from the oil sight.

(4) After assembly or regular parking, the vehicle must be turned for inspection before the first driving to check whether there is any abnormal sound such as abnormality, impact and jamming.

(5) Remove all items that hinder work on the machine and nearby, and the protective cover should be firmly fixed.

(6) Check whether the exhaust pipe is unblocked, and the air release valve should be opened.

(7) In order to reduce the load during startup, the relief valve should be closed or the oil-water blow-off valve should be opened to keep the discharge pipeline in a pressure-free state.

(8) open the cooling water valve, the water flow should be smooth, no bubbles.

(9) The electrical part should be prepared before starting.

2 driving.

(1) Turn on the current to make the air compressor run under no-load condition.

(2) After the no-load operation is normal, gradually open the relief valve and close the oil-water blow-off valves of the coolers at all levels to make the air compressor run under load.

3 Operation

(1) Lubricating oil pressure is 1~5kg/cm2, not less than 1kg/cm2.

(2) The exhaust pressure should not exceed 8kg/cm2, otherwise the pressure regulator should be checked.

(3) Check that the lubricating oil of the oil pool and the oil injector should be within the scale range, and the oil overflow should not exceed the specified range.

(4) The cooling water should be smooth, uniform, no intermittent, no bubbles, and the water temperature should not exceed 40°C.

(5) The exhaust temperature does not exceed 160 ℃, and the temperature after water cooling does not exceed 40 ℃.

(6) Check whether the current, voltage and motor temperature are normal.

(7) Always check whether the parts are running normally.

(8) Always check whether the suction valve cover is hot and whether the valve sound is normal.

(9) Pay attention to the reliability of various protective equipment.

(10) After 2 hours of operation, the oil and water blow-off valves at all levels shall be opened and blown off, and the oil and water in the steam tank shall be discharged for 1~2 times per shift.

(11) Keep the air filter clean and clean it once a month.

(12) Record the operation once per hour and keep the equipment clean.

(13) If the following conditions are found during operation, the vehicle shall be stopped immediately. ①The lubricating oil is interrupted; ②The cooling water is interrupted; ③The exhaust pressure suddenly rises and the safety valve fails; ④The air compressor or the motor has abnormal sound; ⑤The motor or electrical equipment has abnormal conditions.

4 Normal parking

(1) Close the relief valve, open the cooler and oil-water blow-off valve at all levels.

(2) Turn off the power supply and stop the machine.

(3) Close the cooling water inlet valve, release the water in the cylinder liner and the oil-water separator of the cooler at all levels and the air storage tank, and prevent freezing in winter.

(4) Release the compressed air at all levels of the exhaust pipe.

(5) After the power is cut off, it should be restored to the state before the change.

(6) When the air compressor stops for more than 10 days, sufficient lubricating oil should be injected into each friction surface.

5 Security

technology

(1) When the compressor inlet and exhaust pipes are long, they should be fixed to avoid vibration.

(2) The fasteners of pressure vessels such as gas storage tanks and coolers shall be subject to safety inspection and appraisal once a year.

(3) The gas pipeline, valve and gas storage tank shall be cleaned once every 0.5 years.

(4) The exposed rotating parts (pulleys, etc.) of the compressor shall have safety covers.

(5) Always check whether the grounding wire of the motor part and the electrical part is in good condition.

Graphic] Safety Operation Regulations for Air Compressor

1 Preparation before operation

the 1.1 should keep the environment near the motor clean and dry to prevent the motor from being damp or inhaling dust.

1.2 diesel engine should keep the fuselage clean without leakage, and check whether there is a lack of oil and water.

1.3 check the operating parts for tools and sundries, and clean them.

The oil quality and quantity in the 1.4 crankcase shall meet the requirements.

All 1.5 connections shall be free of looseness.

1.6 check the diesel engine and compressor connection part of the screw is loose.

1.7 In winter, when starting the engine with starting fluid, anti-virus and fire prevention measures should be taken to keep away from open flames.

1.8 After the engine is started, it should be warmed up at a medium speed, and it should not be warmed up in a place with poor air.

1.9 check whether each part of the diesel engine is normal, whether the accessories are connected reliably, and exclude abnormal phenomena.

1.10 check whether the electric starting system circuit wiring is normal and whether the battery is sufficient.

1.11 check whether the oil pan is short of oil, whether the radiator is short of water, and fill up the cooling water and lubricating oil.

1.12 check whether the valves of the pressure air pipeline are flexible and in the position before starting up.

The 1.13 starting equipment is flexible, the operating handle should be set to the zero position, and the oil circuit breaker should be in the off position.

1.14 the number of rotations of the turning car, there should be no scraping or blocking phenomenon.

1.15 adjust the unloader (close the plum blossom handwheel) to make the air compressor in no-load state.

Before starting the 1.16 air pump every time, check the oil level. If it is lower than the lower limit of the oil standard, add oil.

1.17 For modified atmosphere compressors, if there is air in the air reservoir, it should be released in advance to make the motor start without load.

2 Operating procedures

2.1 check the operating parts for tools and sundries, and clean them.

The oil quality and quantity in the 2.2 crankcase shall meet the requirements. All connection parts shall be free of looseness.

2.3 check the diesel engine and compressor connection part of the screw is loose.

2.4 In winter, when starting the engine with starting fluid, anti-virus and fire prevention measures should be taken to keep away from open flames.

2.5 After the engine is started, it should be warmed up at a medium speed, and it should not be warmed up in a poorly ventilated place.

When the starter motor is 2.6 operated, the time should not exceed 10 minutes. It should be after 2 minutes when it is restarted. If the engine cannot be started after more than three times, it should be checked and restarted after troubleshooting.

2.7 press the start button to make the engine run at medium speed, and observe whether the oil pressure meets the normal requirements.

After the 2.8 is started, the indicating value of each instrument should be observed, and the running condition of the engine should be checked. When the water temperature rises to 70 ℃, the air compressor can be driven.

When the 2.9 idle speed heating reaches 70 ℃, the air compressor is engaged to work.

2.10 Close the power knife on the power distribution panel, press the start button (or start handle), start the motor, and put the air compressor into operation.

2.11 empty

after 2~3 minutes of load operation, if there is no abnormal situation, open the plum blossom handle on the relief valve to make the air compressor run with load.

Before the 2.12 is started, the plum blossom handwheel on the relief valve must be turned clockwise to close the suction port, so that the air compressor can be started with no load.

2.13 Note that the reading of the 1. secondary barometer should be within the normal range. After the idling is normal, it can be put into operation with load.

3 Running jobs

it is forbidden to add cooling water to the 3.1 engine at high temperature, and cooling water should be added after shutdown.

3.2 check the sensitivity and normality of the automatic pressure regulating system, and determine whether the air compressor has abnormal noise and air leakage. After everything is normal, it can be officially operated.

3.3 motor and mechanical parts shall be free of abnormal noise and vibration.

There shall be no overheating at the connection of each part of the 3.4 wire, and the switch cabinet and motor shall be free of scorching and other abnormal odors.

All 3.5 screws and pins shall be free of looseness.

3.6 the instructions of each instrument, oil level of each part, oil temperature, exhaust temperature and air pressure shall meet the requirements specified in the manual:

3.7 operators should always pay attention to the operation of the air compressor, especially the following items.

3.7.1 Secondary exhaust pressure or exhaust temperature;

3.7.2 Ammeter reading on the distribution panel.

3.7.3 Lubricating oil level;

3.7.4 Compressor or motor sound;

3.7.5 1. the pressure of the secondary cylinder;

3.7.6 Whether there is air leakage in the system.

3.8 the air pump in operation to always check the pressure gauge reading is normal, pay attention to the stability of the machine operation, found that there is abnormal vibration or noise, immediately stop the machine to check.

During 3.9 operation, attention should be paid to keeping the oil level between 1/3 and 2/3 indicated by the oil mark. If it is low, it is easy to cause bush burning, axle holding and cylinder pulling. If it is high, it will cause excessive fuel consumption, carbon deposition on the air valve, and even worse. The result.

3.10 often check the heating of moving parts, the temperature of the cylinder head exhaust port shall not be higher than 200 ℃, and the oil temperature in the crankcase shall not be higher than 70 ℃.

4 Shutdown

4.1 gradually close the relief valve, so that the air compressor no-load operation.

4.2 the power is disconnected, the motor stops. Diesel engine oil cut off, the engine off.

4.3 After each work, after the pressure in the air storage cylinder drops slightly, open the drain valve at the bottom of the cylinder to discharge oil, water and dirt. For long-term continuous operation of the machine, the general need to discharge once every 8 hours to ensure the purity of compressed air.

4.4 in the following circumstances should be emergency shutdown.

4.4.1 If the oil pressure and water temperature of the diesel engine exceed the allowable range, stop the machine for inspection if there is abnormal noise.

4.4.2 When there is abnormal impact noise in the crankcase, cylinder and valve chamber.

4.4.3 When the automatic pressure regulating system and safety valve fail, causing the pressure in the gas tank to exceed the rated pressure.

4.4.4 When the exhaust temperature and lubricating oil temperature exceed the maximum allowable values.

4.4.5 When the temperature rise or rated current of the motor exceeds the allowable maximum value and sparks occur in the electrical circuit.

4.5 cleaning, fastening and other maintenance work for the moving parts must be carried out after shutdown.

It is 4.6 forbidden to use gasoline or kerosene to clean the filter of the air compressor, the cylinder and other parts of the compressed air pipeline to prevent fire and explosion. Do not use combustion to remove oil from the pipeline.

4.7 When cleaning parts with diesel or gasoline, smoking is strictly prohibited, and there shall be no kindling or used waste oil nearby.