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You Know? Treatment of Liquid Hammer Phenomenon in Refrigeration Pipeline Systems

  • Release time: 2026-09-12

You Know? Treatment of Liquid Hammer Phenomenon in Refrigeration Pipeline Systems

Liquid hammer inside refrigeration pipelines brings impact load and threatens the safety of condensing units and pipeline components. Liquid refrigerant flows back into compressor cylinder and creates instantaneous pressure shock, which may damage internal valves. Reasonable pipeline design and crankcase heater installation reduce liquid hammer occurrence probability by 76%. Unreasonable shutdown sequence is one major trigger, especially in low-temperature cold room refrigeration systems. Liquid accumulator installation can effectively intercept liquid refrigerant and protect the compressor from liquid impact damage. Professional refrigeration factory optimizes pipeline design to reduce liquid hammer risk for cold room equipment projects. Xindacool adopts anti-liquid-hammer structure design for complete refrigeration system configuration of industrial cold storages. Long-term repeated liquid hammer will cause pipeline weld crack and refrigerant leakage after several years of operation. Around 28% of compressor valve plate damage accidents are associated with liquid hammer in refrigeration pipelines. Correct startup preheating procedure eliminates most liquid backflow formed during the equipment shutdown period. Pressure buffer components absorb instantaneous pressure surge and protect pipeline and valve fittings. Timely handling of liquid hammer risk ensures long-term safe operation of the whole cold room refrigeration system.

FAQ

  1. Q: How much can optimized design reduce liquid hammer probability? A: Proper design and heater installation cut liquid hammer risk by 76%.
  2. Q: What component helps intercept liquid refrigerant to protect compressor? A: Liquid accumulator can intercept liquid refrigerant effectively.
  3. Q: What damage will repeated liquid hammer cause to pipelines? A: It may lead to weld crack and refrigerant leakage after years.
  4. Q: What percentage of valve plate damage relates to liquid hammer? A: 28% of compressor valve plate damage comes from liquid hammer.
  5. Q: What operation helps eliminate liquid backflow risk before startup? A: Startup preheating procedure reduces liquid backflow risk.

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