高压主蒸汽流量计异种钢焊缝失效分析及处理  

Analysis and Settlement of Dissimilar Steel Weld Failures at High-pressure Main Steam Flowmeters

作　　者：吴金勇 张建林[2] 姜志慧 WU Jinyong;ZHANG Jianlin;JIANG Zhihui(Zhuhai Yuhai Power Co.,Ltd.,Zhuhai 519090;Suzhou Nuclear Power Research Institute Co.,Ltd.,Suzhou 215004)

机构地区：[1]珠海市钰海电力有限公司,广东珠海519090 [2]苏州热工研究院有限公司,江苏苏州215004

出　　处：《电力安全技术》2024年第1期57-61,共5页Electric Safety Technology

摘　　要：为避免出现高压主蒸汽流量计异种钢焊缝失效的问题,针对某电厂发生的高压主蒸汽流量计部位蒸汽泄露事件进行调查、检测,对流量计异种钢焊缝开裂原因进行了深层次的分析,并提出了处理方案,有效消除了流量计异种钢焊缝失效隐患,提高了机组的安全可靠性。To avoid the failures of dissimilar steel welds at the high-pressure main steam flowmeters,an event of steam leakage at the high-pressure main steam flowmeters occurred in a power plant is investigated and detected,and an in-depth analysis on the cracking causes of dissimilar welds proposes a solution to efectively solve the hidden dangers of such weld failures of dissimilar steel flowmeters and improve the safety and reliability of the units.

关 键 词：流量计 异种钢 焊缝 疲劳 

分 类 号：TM621.2[电气工程—电力系统及自动化]