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介绍一起空分设备常温空气管道被返流液空冻裂的经过和破坏情况,分析了下塔液空返流进入板翅式换热器后再进入常温空气管道的原因,并提出防范措施。最后从设计和操作两方面阐述了防止空分设备发生重大设备故障和事故的措施。
An introduction is made to the reasons for the passage and destruction of air-space at normal temperature in the air separation plant by air-liquid-air fracture, and the reasons for the liquid-air backflow entering the plate-fin heat exchanger before entering the air pipe at room temperature are analyzed. Preventive measures are also proposed. Finally, from the design and operation of two aspects of air separation equipment to prevent major equipment failure and accident measures.