[Mobile Equipment Technology Edition] Daily Question 20171219 Common faults in refrigeration systems (1)
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This post was last edited by YORK Industrial Refrigeration on 2017-12-21 08:27. From now on, in order to strengthen exchanges among sea friends, we have launched a [Daily Question] activity in the Animal Equipment Technology Edition. We hope that everyone will actively participate and make progress and improvement together! ! ! award: Actively participate in 3 points of wealth, answer intact 10-15 wealth. This question is valid for two days. No marks will be given for more than two days. What are the causes of pipeline vibration in the refrigeration system? 1. The pipeline is not firmly reinforced. 2. The bending angle of the pipe must be accurate. 3. The distance between the hanging points of the exhaust pipe is too large. 4. The diameter of the exhaust pipe is small and the gas flow rate is high. 5. The pipe installation is not connected according to the direction of fluid flow, resulting in large flow resistance and great friction and vibration. =============================== Premium promotion: Moving Equipment---2017 Work Summary Equipment Manager Work Summary https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1881872 Moving equipment---York screw compressor maintenance process https://bbs.hcbbs.com/thread-1806833-1-1.html 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=
First, pipeline vibration caused by air flow pressure pulsation； The second is the vibration of the air column in the pipeline ； The third is mechanical vibration of the pipeline.
1. Pipeline vibration caused by air flow pulsation 2. Air column resonance 3. Pipeline mechanical vibration
First, pipeline vibration caused by air flow pressure pulsation； The second is the vibration of the air column in the pipeline ； The third is mechanical vibration of the pipeline. Fourth, the compressor unit vibrates, causing pipeline vibration.
1. Vibration of the compressor, 2. Pulse vibration of the medium in the pipeline, 3. Unreasonable piping, resonance caused by the natural frequency of the pipeline system and the vibration of the compressor,
1. It is due to insufficient refrigerant amount or pressure difference, oil supply, etc. that causes the vibration of the compressor unit, resulting in pipeline vibration. 2. It is the pipeline vibration caused by the pulsation of air flow pressure.； 3. It is the vibration of the air column in the pipeline ； 4. It is the mechanical vibration of the pipeline. 5. The liquid in the pipeline causes liquid shock and vibration.
1. Air flow pulsation or air column vibration； 2. Pipeline mechanical vibration.
One is the vibration of the pipeline caused by the pulsation of air flow pressure; the second is the vibration of the air column in the pipeline; the third is the mechanical vibration of the pipeline.