Common problems during the operation of screw compressors
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Let’s discuss what common problems occur with screw compressors during operation Let’s discuss with each other to improve together.
The main faults of screw compressors during operation include high exhaust temperature and excessive noise.
The screw compressor is still under installation, but it is said to be noisy when in operation!
The noise is really loud; it seems like you’re still a newcomer to this field. Hehe
Let’s discuss the sealing issues of screw compressors – what types of seals are used?
Positive displacement compressors generate considerable noise due to factors such as pulsations in the airflow, but modern noise reduction technologies are effective enough to reduce this noise to an acceptable level.
Generally, there are few problems; they only arise after the system has been running for some time. For example: scaling of the condenser due to cooling water issues, and so on
There’s nothing that can be done about that; almost every factory encounters this issue. Just ensure proper passivation and regular cleaning. What I’m referring to are other problems related to the unit itself, such as a lack of oil, inflexible control valves, high liquid level in the evaporator, and reduced cooling efficiency, etc
Could the high exhaust temperature you mentioned be due to insufficient flow of cooling water or a high temperature of the cooling water itself? As for the loud noise, could it be caused by impurities entering the screw compressor or damaged bearings?
The exhaust temperature level is related to the amount of fuel injected; generally, an alarm is triggered at 90 degrees Celsius
I’m facing a problem and seek help from experts. It’s a twin-screw chiller (ethylene glycol type), using R507 as the refrigerant. There is a heat load to be handled; the inlet temperature of the ethylene glycol water solution (chilled water) is 10 degrees, and the outlet temperature needs to be kept at 4 degrees. The inlet temperature of the cooling water is controlled at 32 degrees. Under high load, the intake pressure is 450 KPA and the exhaust pressure is 1500 KPA, but the water temperature does not drop. Observing the evaporator level gauge shows uneven evaporation bubbles, while the chilled water flow meets the requirements. After continuous operation, the slide valve will automatically reduce the load and the suction pressure will rise to 700 KPA; (there is enough fluorine, as the machine was just refilled). Please advise, experts