Refrigeration Compressor Noise Source Identification | Mechanical, Aerodynamic and Electromagnetic Noise
Noise complaints originate from 24% of cold storage project acceptance delays, xiteliduo Refrigeration Compressors classifies noise sources and reduction solutions. Piston refrigeration compressor main noise comes from gas pulsation and reciprocating mechanical impact, dominant frequency at low frequency band. Semi-hermetic refrigeration compressor noise mainly includes rotor rotation noise, gas flow noise and electromagnetic noise from motor. Cold storage refrigeration compressor noise measurement point is set at 1 meter away from compressor surface, height 1.2 m above ground. Sound insulation cover can reduce noise by 15~22 dB(A). Ventilation opening must be reserved to avoid overheating of compressor. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor noise reduction, refrigeration gas pulsation noise, refrigeration electromagnetic noise, refrigeration sound insulation cover, refrigeration compressor manufacturer, cold storage noise control, refrigeration compressor supplier
FAQ
Q1: What percentage of cold storage acceptance delays are caused by compressor noise issues? A: 24% of project handover delays are related to noise complaints. Q2: What is the primary noise source of piston compressor? A: Gas pulsation and reciprocating mechanical impact, low frequency noise. Q3: What compose the noise of semi-hermetic compressor? A: Rotor noise, gas flow noise and motor electromagnetic noise. Q4: Where is the standard noise measurement point? A: 1 meter from compressor surface, height 1.2 m above ground. Q5: How much noise reduction can sound insulation cover achieve? A: 15~22 dB(A) noise attenuation. Q6: What risk if sound insulation cover lacks ventilation? A: Poor heat dissipation leads to compressor overheating and thermal trip. Q7: What method can reduce low-frequency gas pulsation noise? A: Discharge muffler plus pipeline vibration isolation support.
