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介绍了25000m3/h空分设备制氩系统V757阀关闭不严的故障及危害,分析冷态下更换空分设备冷箱阀体的危险性,阐述冷态下更换阀体的方案、实施过程和注意事项。
This paper introduces the failure and harm of the closed valve V757 of 25000m3 / h air separation plant, and analyzes the danger of replacing the cold box body of the air separation plant in cold state. It also describes the scheme of replacing valve body in cold state, Precautions.