某电厂锅炉后屏过热器T91钢管爆管原因分析  

Failure Analysis of T91 Steel Tube for Superheater of Boiler Rear Panel

作　　者：董自谦[1] DONG Zi-qian(Harbin Boiler Company Limited)

机构地区：[1]哈尔滨锅炉厂有限责任公司

出　　处：《电站系统工程》2023年第3期45-46,共2页Power System Engineering

摘　　要：某电厂锅炉在运行中后屏过热器垂直段中间处T91钢管发生爆管。对爆管位置进宏观检查、化学成分分析、室温拉伸性能检测、硬度检测及金相分析等。试验结果及分析表明,后屏过热器T91钢管爆管原因是短时超温过热爆管。The T91steel pipe burst in the middle of the vertical section of the rear superheater in a boiler.The location of the burst tube is inspected macroscopically,chemical composition analysis,tensile property test at room temperature,hardness test and metallographic analysis.The test results and analysis show that the cause of tube bursting of T91 steel tube in rear plate superheater is short time overtemperature overheating.

关 键 词：后屏过热器 T91 超温 爆管 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]