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You Know? Refrigeration Liquid Hammer Hazard and Preventive Design

  • Release time: 2026-09-12

You Know? Refrigeration Liquid Hammer Hazard and Preventive Design

Liquid hammer occurs when incompressible liquid refrigerant impacts valve and compressor internal components. Liquid entering compressor cylinder will cause heavy impact and may damage valve plate and bearing assembly. Solenoid valve closing speed, pipeline layout and refrigerant charging volume affect liquid hammer intensity. Liquid accumulator installed on suction line can intercept liquid refrigerant before entering compressor. Avoid steep pipeline slope and rapid valve shutoff to reduce the chance of liquid hammer generation. Professional refrigeration factory optimizes pipeline layout to reduce liquid hammer risk during design phase. Xindacool adds liquid accumulator protection for low-temperature refrigeration systems. Repeated liquid hammer will loosen pipe joints and create hidden refrigerant leakage risk. About 29% of compressor valve plate damage accidents are induced by liquid hammer impact. Operators should avoid sudden manual cut-off of refrigerant pipeline during unit running. Suction line insulation and proper superheat setting reduce liquid refrigerant returning to compressor. Targeted design measures effectively reduce liquid hammer hazard and protect refrigeration equipment.

FAQ

  1. Q: What is liquid hammer in refrigeration system? A: Liquid refrigerant produces strong impact on valves and compressor parts.
  2. Q: What serious damage can liquid hammer cause to compressor? A: Break compressor valve plate and damage internal bearing components.
  3. Q: What component intercepts liquid refrigerant on suction pipeline? A: Suction line liquid accumulator.
  4. Q: What percentage of valve plate damage comes from liquid hammer? A: 29% of compressor valve plate failures are caused by liquid hammer impact.
  5. Q: What control parameter helps stop liquid return to compressor? A: Maintain proper suction superheat setting.

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