Refrigeration Compressor Oil Foaming Fault Analysis | Oil Level Fluctuation and Bearing Risk
Oil foaming causes 35% of intermittent low oil pressure trips, xiteliduo Refrigeration Compressors analyzes foaming mechanism and elimination measures. Piston refrigeration compressor oil foaming is often triggered by refrigerant migration during shutdown, refrigerant flashes out and creates bubbles inside crankcase. Semi-hermetic refrigeration compressor oil foaming will reduce effective oil viscosity, destroy bearing oil film and cause metal contact wear. Cold storage refrigeration compressor crankcase heater preheating can reduce refrigerant dissolution in oil, which is the primary preventive measure for oil foaming. Oil sight glass observation is the simplest field detection method; heavy foam covering oil surface indicates severe foaming phenomenon. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor oil foaming, refrigeration crankcase oil, refrigeration refrigerant migration, refrigeration bearing oil film, refrigeration compressor manufacturer, cold storage compressor oil fault diagnosis, refrigeration compressor supplier
FAQ
Q1: What percentage of intermittent low oil pressure shutdowns are caused by oil foaming? A: 35% of intermittent low oil pressure trips originate from oil foaming. Q2: What is the main cause of oil foaming? A: Refrigerant dissolved in oil flashes and generates bubbles inside crankcase. Q3: What damage will oil foaming bring to bearings? A: Reduce oil viscosity, break oil film and induce metal-to-metal friction. Q4: What is the most effective preventive method? A: Keep crankcase heater energized during standby. Q5: How to judge oil foaming on site? A: Check oil sight glass; thick foam covering liquid oil means severe foaming. Q6: Will frequent start-stop aggravate oil foaming? A: Yes, repeated temperature and pressure changes accelerate refrigerant flashing. Q7: What action should be taken if heavy oil foaming occurs? A: Stop compressor, maintain crankcase heating and wait for foam to dissipate.
