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针对2台俄罗斯Е420-18.8-560КТ型锅炉主蒸汽管道2个弹簧吊架失效的情况,通过宏观检验、断口分析、材料检验、设计对证等方面进行分析,查找到引起吊架失效的原因是采用了较低等级的管夹,在更换合适的管夹后运行正常。
Aimed at the failure of two spring hangers of 2 Russian Е420-18.8-560КТ boiler main steam pipe, the reasons of failure of hanger caused by macro inspection, fracture analysis, material inspection and design verification were analyzed A lower grade pipe clamp is used, which works well after replacing the appropriate pipe clamp.