[Mobile Equipment Technology Edition] Daily Question 201804012 Common faults of screw refrigeration compressors (1)
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This post was last edited by YORK Industrial Frozen on 2018-4-14 08:37. This year’s [Daily Question] is divided into three directions.: Screw refrigeration compressor, refrigeration system, and oil system will give you a comprehensive understanding of refrigeration technology. (If you encounter something you don’t know or can’t answer, please actively check the information. While doing so, your abilities will be improved! ) (Anyone who comments on this post will be rewarded with 1-3 wealth, and the answer is 10-15, valid for two days) ============================== Common faults of screw refrigeration compressors (1): What is the reason for the loud noise and vibration of the compressor? answer: The answer is from two aspects. If there is noise, it means that it is coming from the compressor, so just consider the system problems and the mechanical problems of the compressor.: Tide truck, poor oil return compressor: Bearing deformation, changes in axial and radial displacement of the screw, screw wear, cavity wear, bearing wear, etc. ============================== Premium promotion: Moving equipment---York compressor maintenance and debugging video https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1806833 Moving equipment---York screw compressor maintenance process https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1806833 Moving equipment---York Quantum control center upgrade https://bbs.hcbbs.com/thread-1804837-1-1.html Moving equipment---GEA Grasso screw compressor overhaul https://bbs.hcbbs.com/thread-1800467-1-1.html Moving equipment---Howden screw compressor disassembly and maintenance in the UK https://bbs.hcbbs.com/thread-1832529-1-1.html Moving equipment---Japanese Maekawa MYCOM screw compressor disassembly and maintenance https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=
The oil return is not smooth and the suction contains liquid (tide truck)
It is caused by poor oil return, air in the system pipeline, and too much refrigerant. When vibration and abnormal noise occur in a screw compressor, it is usually caused by a lack of oil in the compressor or liquid backflow in the compressor. For screw compressors, this situation is very dangerous and can easily lead to complete damage to the compressor.
Common faults of screw refrigeration compressor (1): What is the reason for the loud noise and vibration of the compressor? answer: It is caused by poor oil return, air in the system pipeline, and too much refrigerant. When vibration and abnormal noise occur in a screw compressor, it is usually caused by a lack of oil in the compressor or liquid backflow in the compressor. For screw compressors, this situation is very dangerous and can easily lead to complete damage to the compressor.
Compressor is short of oil； Compressor has fluid backflow
Poor oil return, air in the system pipeline, too much refrigerant
It is caused by poor oil return, air in the system pipeline, and too much refrigerant. When vibration and abnormal noise occur in a screw compressor, it is usually caused by a lack of oil in the compressor or liquid backflow in the compressor. For screw compressors, this situation is very dangerous and can easily lead to complete damage to the compressor.
Whether the alignment is good, whether it is filled with fluid and whether it is overloaded
It is caused by poor oil return, air in the system pipeline, and too much refrigerant. When vibration and abnormal noise occur in a screw compressor, it is usually caused by a lack of oil in the compressor or liquid backflow in the compressor. For screw compressors, this situation is very dangerous and can easily lead to complete damage to the compressor.
What should I do if the refrigeration effect is not good? The outlet pressure is too high and the energy level cannot be adjusted.
mechanical reasons； 1. Poor alignment, 2. Bearing damage, 3. There is a problem with the gap between the yin and yang rotors. ； Process reasons: The compressor load is too large, 2, the compressor working condition is unstable