High exhaust temperature of screw air compressor

screw air compressor exhaust temperature is generally too high oil cooler and water cooler caused by the temperature is too high, there may be sensor failure and other reasons. Some alarms can be eliminated immediately through the operation of the controller page, but sometimes the alarm of excessive exhaust temperature will appear after elimination. After checking the pressure and temperature of the inlet and outlet of the circulating water, it is felt that the index of the circulating water is within the normal range, and the alarm possibility of excessive exhaust temperature caused by the circulating water is very small. If the equipment is further checked and the color of the lubricating oil is found to be darker, it is judged that the maintenance cycle is reached. After checking the operation records on the screw air compressor, it is indeed the maintenance cycle. After maintenance, this phenomenon is eliminated.

Common reasons for high exhaust temperature in air pressure maintenance are:

1. the actual exhaust temperature is not too high

1. Inaccurate display of thermometer

2. Temperature sensor fault

3. Controller failure

4. Temperature switch fault

2. the actual exhaust temperature is too high

1, lubricating oil use time is too long

2. Wang filter element is blocked

3. Oil core blocking

4. Temperature control valve failure

5. The lubricating oil level is too low

6. The ambient temperature is too high

7. Fan motor reverse

8. The fan motor does not rotate

9. The outside of the air cooler is always too dirty

10. Serious fouling in the oil circuit of the air cooler

11. The exhaust channel of the cooler is not smooth

12. Cooling water pressure is too low

13. The cooling water temperature is too high

14. The cooling water outlet pipeline is blocked

15, oil cooler water circuit fouling serious

16. The minimum pressure valve is stuck

17. The check valve is stuck

18. The oil cut-off valve cannot be fully opened

19. Sealing failure of temperature control valve core