What Is The Difference Between Semi-Hermetic Refrigeration Compressor And Piston Refrigeration Compressor
Semi-hermetic refrigeration compressors integrate motor and compression parts, while piston refrigeration compressors adopt split or semi-open structure, and xiteliduo Refrigeration Compressors sorts out their structural and application differences for reference.
Semi-hermetic refrigeration compressors achieve 94% motor heat transfer efficiency. The motor is immersed in refrigerant, so heat can be directly taken away by cooling medium during continuous operation.
Piston refrigeration compressors support easier overhaul of wearing parts. Overhaul statistics show that valve plate and piston ring can be replaced on site within 8 working hours without returning the whole unit.
The noise value of semi-hermetic refrigeration compressors is 5 to 8 decibels lower than open piston models. The fully sealed shell structure reduces vibration transmission and airborne noise emission.
Cold storage refrigeration compressor energy consumption differs by about 11% under 70% load. Semi-hermetic units perform better in energy saving for long-term continuous operation cold storage.
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FAQ
Q1: What is the core structural difference between semi-hermetic and piston refrigeration compressor? A: Semi-hermetic model integrates motor and compressor; piston type can be split for maintenance. Q2: How much lower is semi-hermetic compressor noise than open piston compressor? A: Semi-hermetic unit produces 5 to 8 decibels less noise under same cooling capacity. Q3: What is the motor heat transfer efficiency of semi-hermetic refrigeration compressor? A: Its motor heat transfer efficiency can reach up to 94% with refrigerant cooling design. Q4: How long does on-site overhaul take for piston refrigeration compressor wearing parts? A: Replacement of valve plate and piston ring can be finished within 8 working hours. Q5: What is energy consumption gap between two compressors under 70% operating load? A: The energy consumption difference is approximately 11% under 70% stable load. Q6: Which type is more suitable for 24h continuous running cold storage? A: Semi-hermetic refrigeration compressor is preferred for long time continuous operation. Q7: Which compressor is easier for on-site component maintenance? A: Piston refrigeration compressor allows convenient replacement of wearing parts on site.
