What are the possible reasons for the noise of the air-conditioning compressor

What are the possible reasons for the noise of the air-conditioning compressor What are the possible reasons for the noise of the air-conditioning compressor Compressor noise control is an extremely complex problem. What are the possible reasons for the noise of air-conditioning compressors? Only when the cause is found can the solution be found accordingly. At present, we are only conducting a preliminary discussion. The next step is to cooperate with relevant compressor manufacturers, through a large number of experiments, analyze various factors that may affect the compressor noise, and effectively reduce the outdoor unit noise. About outdoor compressor noise peak and pipeline vibration treatment methods Outdoor unit noise mainly comes from the following parts: Compressor, fan motor, connected piping and refrigerant flowing in the pipe. Compressor noise and vibration mainly come from the rotation of the rotor, mechanical pump body movement and refrigerant pulsation shock excitation, gas-liquid separator and casing, bottom angle excitation Specifically, the compressor noise mainly has the following parts: 1. Motor noise: including electromagnetic noise, mechanical noise and aerodynamic noise 2. Mechanical noise: valve motion, gas pressure pulsation, various moving parts, motor and refrigerant flow are the excitation sources of compressor noise vibration. Compressor noise and vibration transmission path: 1. Solid channel (spring, tube, compressor housing, etc.). 2. Liquid passage (compressor oil). 3. Gas channel (refrigerant gas). Solutions: 1. Familiar with the internal structure of the compressor and analyze the noise source and transmission of the compressor. (Outsourcing help) 2. Understand the performance of pipeline materials. (Material Mechanics) Under the condition that the compressor and the perfusion amount are determined, analyze the stress of the outdoor unit pipeline, find the unreasonable pipeline and seek solutions Refrigerant and refrigerating machine oil may also become excitation sources of vibration and noise. Freon can generate noise when it produces flash point cavitation under low pressure and high temperature. Note: Perhaps your compressor has a large crosstalk caused by the wear of the bearing shell or cylinder in the running part for a long time or the compressor oil is gone.

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What are the possible reasons for the noise of the air-conditioning compressor

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