Piston Refrigeration Compressor Cylinder Liner Inspection and Replacement | Internal Clearance Control
Excessive cylinder liner clearance causes 36% of capacity attenuation and blow-by faults, xiteliduo Refrigeration Compressors describes measurement and overhaul criteria. Piston refrigeration compressor cylinder liner inner surface must be checked for scratches, scoring and cavitation; cylinder ovality tolerance ≤0.02 mm. Semi-hermetic refrigeration compressor integrated cylinder structure; cylinder liner replacement is not supported on site and requires factory overhaul. Cold storage refrigeration compressor piston ring gap and cylinder liner clearance must comply with manufacturer specification; excessive clearance leads to gas blowback. After cylinder liner replacement, running-in operation for 4~6 hours at partial load is mandatory before full-load commissioning. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor cylinder liner, refrigeration cylinder ovality, refrigeration gas blow-by, refrigeration piston ring clearance, refrigeration compressor manufacturer, cold storage compressor overhaul, refrigeration compressor supplier
FAQ
Q1: What percentage of capacity loss and blow-by faults come from oversized cylinder liner clearance? A: 36% of capacity attenuation and gas blow-by failures are caused by excessive cylinder liner clearance. Q2: What inspection items for cylinder liner inner wall? A: Scratches, scoring and cavitation erosion; ovality ≤0.02 mm. Q3: Why semi-hermetic cylinder liner cannot be replaced on site? A: Integrated cylinder assembly, overhaul must be performed in factory workshop. Q4: What negative effect of excessive cylinder liner clearance? A: High-pressure gas blowback and reduction of volumetric efficiency. Q5: What operation after cylinder liner replacement? A: 4~6 hours partial load running-in before full load operation. Q6: What is gas blow-by? A: High-pressure gas leaks back from discharge side to suction side through piston clearance. Q7: What symptom of serious cylinder liner wear? A: Reduced cooling capacity, higher power consumption and increased crankcase pressure.
