Troubleshooting of high pressure air compressor
1-0.27/150 Type High Pressure Air Compressor Troubleshooting Method Fault Features Sound in the crankcase
Possible cause a. The screw and nut of the connecting rod are loose. Whether the big-end bearing of the connecting rod is loose.
Elimination method: a tighten the nut b adjust the gap, tighten the connecting screw of the big end bearing or replace the bearing bush.
2. Fault feature: noise occurs in the cylinder.
Possible reasons: a. Clearance of the cylinder. b. Valve> failure. C. The gap of the spherical bearing in the piston is too large, or the connecting screw is loose.
Elimination method: a check the cylinder clearance, and adjust it. b check the noised air valve, disassemble and check, adjust the bearing clearance and tighten the screws.
3. Fault feature: a strong impact sound suddenly occurs in the cylinder.
Possible reasons: a debris or damaged parts enter the cylinder. b water enters the cylinder.
Elimination method: a check and remove debris. b open the relief valve to remove oil and water.
4. Fault features: the compressor displacement is reduced; the first-stage intake valve and the air filter cap are heated; the first and second-stage pressures drop.
Possible cause: Leakage in the first-stage intake valve.
Elimination method: a. Check the air valve's air and honey property, grind or replace the valve leaf spring with insufficient elasticity, replace the sealing gasket if necessary.
Fault characteristics: compressor discharge volume decreases; first-stage discharge temperature increases; first- and second-stage pressure drops.
Possible cause: Leakage in the primary air outlet valve.
Elimination method: Same as above.
Fault characteristics: the compressor displacement is reduced, and the first and second pressures drop.
Possible cause: The primary piston ring is not sealed.
Elimination method: check the piston ring and replace if necessary.
Fault feature: the compressor displacement is reduced but the first-stage pressure does not drop.
Possible cause: The secondary piston ring is not sealed.
Elimination method: Same as above.
Fault characteristics: the compressor displacement decreases and the secondary pressure increases.
Possible cause: Leakage in the three-stage intake valve.
Elimination method: Check the air valve's air honey, grinding or replacing the valve piece
If the spring force is insufficient, replace it, and replace the sealing gasket if necessary.
Fault characteristics: the pressure of the second or third stage drops, the intake pipe or valve cover of this stage heats up, and the pressure of the previous stage increases.
Possible cause: The intake valve of this stage is leaking.
Elimination method: Same as above.
Fault characteristics: the second or third stage pressure drops, and the exhaust temperature of this stage rises.
Possible cause: The outlet valve of this stage is leaking.
Elimination method: Same as above.
Fault features: carbon deposits on the piston and cylinder wall.
Possible reason: oil quality is not required by the symbol.
Elimination method: Lubricating oil of specified brand should be used.
Fault feature: The cylinder is overheated, but the pressure is normal.
Possible cause: insufficient cooling water supply.
Elimination method: Check whether the water pump is leaking, and replace the water pump sealing gasket if necessary.
Fault feature: bearing overheating.
Possible cause: lack of lubricant.
Elimination method: check the amount of oil, add lubricating oil, and replace the lubricating oil regularly according to the instructions.
09/14/2020
1-0.27/150 Type High Pressure Air Compressor Troubleshooting Method Fault Features Sound in the crankcase Possible cause a. The screw and nut of the connecting rod are loose. Whether the big-end bearing of the connecting rod is loose.
09/14/2020
The lubricating oil level of the unit is too low (the green position should be visible from the oil level mirror);
09/14/2020
Technical standard for silent oil-free air compressor 1. Subject content and scope of use 1. This standard specifies the terminology, technical requirements, test methods and inspection rules of silent oil-free air compressors.
09/14/2020
SOLEST series synthetic refrigerating oil: SOLEST LT-32, SOLEST 46, SOLETS 68, SOLEST 120, SOLEST 170, SOLEST 220, SOLEST 370, CP-2931AH, CP-2931A Refrigeration oil: CP-1008-68, CP-1009-68, CP-1516-100, CP-1516-150, CP-4600-68, CP-4600-100, CP-4700-32, CP-4700-68 , CP-4700-100
09/14/2020
1. Function introduction: On-site LCD meter display, real-time temperature, real-time pressure, instantaneous flow, flow accumulation, temperature and pressure compensation function, when measuring gas and steam, check the meter according to the measured temperature and pressure to ensure compensation The flow rate is not affected by temperature and pressure changes,
09/14/2020
PTA is the abbreviation of Purified Terephthalic Acid. PTA is the basic material for the production of polyester fiber and packaging industry, and the main raw material for the chemical fiber industry.
09/14/2020
1. Disassemble all connecting pipelines connected to the cylinder head and clean the surface dust. 2. Take out the oil return pipe (air compressors below GA90 cannot be removed).
09/14/2020
1. Maintenance and maintenance of intake air filter element. The air filter is a component that filters air dust and dirt, and the filtered clean air enters the compression chamber of the screw rotor for compression. Because the internal clearance of the screw machine only allows particles within 15u to filter out.
09/14/2020
The amount of lubricating oil is too much. The correct position should be observed when the unit is loaded. At this time, the oil level should not be higher than half;
09/14/2020
Quanzhou failure analysis In Quanzhou in the past two days, I was debugging an air compressor. I encountered such a problem. The unit was operating normally for the first time. However, after shutting down and turning on, the unit was abnormal and could not pump air. At present, it can be guaranteed that the original electrical appliances are normal.
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