Cause Analysis of Air Compressor Failure

Today, I will tell you about the cause of the failure of the air compressor.

First, the exhaust temperature of the main engine is high, exceeding 109 degrees, and the ambient temperature is high and the discharge of the convection equipment is unreasonable. An exhaust fan should be installed to lower the indoor temperature and remove the equipment box cover for ventilation.

Second, the host is overloaded with electricity, the friction of the host is large, the motor bearing is damaged, the voltage is too low, and the exhaust pressure is too high. Check the pressure gauge and adjust the pressure switch.

Third, the fuel consumption is too large, and the oil content in the air is large. If the oil level is too high, check the oil level and then discharge it to the correct position. There is no pressure difference before and after the oil and gas separator is damaged and separated, and the separation core should be replaced in time.

1. compressor not loaded

1. Causes of failure:

a. The pressure on the pipeline exceeds the rated load pressure, and the pressure regulator is disconnected.

B, solenoid valve failure.

C, oil and gas separator and unloading valve between the control pipeline leakage.

2. Methods of exclusion:

a, do not need to take measures, the pressure on the pipeline is lower than the pressure regulator loading (position) pressure, the compressor will automatically load.

B, remove the inspection, if necessary, replace.

C, check the pipeline and connection, if there is leakage, need to repair.

2. compressor overtemperature

1. Causes of failure:

a, no oil or oil level is too low

b, oil filter blockage

c, oil cut-off valve failure, valve core stuck

d, oil and gas separator filter block or excessive resistance

e, oil cooler surface is blocked

2. Methods of exclusion:

a, check, if necessary, refueling, but not allowed to add too much.

B, replace the oil filter

c. Remove and check

d, remove inspection or replacement

e. Check and clean if necessary

excessive 3. fuel consumption

1. Causes of failure:

a, oil level is too high

b, oil and gas separator filter element failure

c, too much foam

d. The surface of the oil cooler is blocked

e, oil is not right

2. Methods of exclusion:

a. Check the oil level, remove the pressure and drain the oil to the normal position

b. Remove for inspection or replace

c, replace the recommended brand of oil

d. Clean the flow limiting hole

e, replace the recommended brand of oil

increased 4. noise

1. Causes of failure:

a. The bearing at the intake end is damaged

b, exhaust end bearing damage

c, motor bearing damage

2. Methods of exclusion:

remove and replace

5. displacement and pressure are lower than the specified value

1. Causes of failure:

a, air consumption exceeds the exhaust volume

b, air filter element blockage

c. Leakage of safety valve

d. Compressor failure

e. There is leakage on the control pipeline between the oil-gas separator and the unloading valve

2. Methods of exclusion:

a, check the connected equipment, clear the leakage point or reduce the gas consumption

b, remove the inspection, if necessary, clean or replace the filter element

c, remove and check, if it is still not sealed after repair, replace it

d, contact with the manufacturer, after consultation to check the compressor

e, check the management and connection, if there is a leak, need to repair

after the 6. is stopped, the air oil mist is sprayed from the air filter

1. Causes of failure;

leakage or damage of compressor check valve

2. Methods of exclusion:

remove and check, replace if necessary, and replace the air cleaner element at the same time

fuel injection in air filter after 7. shutdown

1. Causes of failure:

oil cut-off valve blocked

2. Methods of exclusion:

remove for inspection and cleaning, and replace the air cleaner element at the same time.

No discharge of condensate during 8. operation

1. Causes of failure:

a. Drain pipe is blocked

b, automatic drain valve failure

2. Methods of exclusion

a. Check and dredge

b. Remove and check

discharge safety valve immediately after 9. loading

1. Causes of failure:

failure of safety valve

2. Methods of exclusion:

remove and replace damaged parts

normal operation of 10. compressor, difficult to start after shutdown

1. Causes of failure:

a, the use of oil brand is wrong or mixed oil

b. Oily sticky and coking

c, shaft seal serious air leakage

d. Original position change of unloading valve flap

2. Methods of exclusion:

a, should be cleaned after a thorough oil change

b, should be cleaned after a thorough oil change

c. Remove and replace

d. Re-adjust the position