锅炉高温过热器T91管现场焊接措施

华电技术 ›› 2011, Vol. 33 ›› Issue (6): 27-28.

锅炉高温过热器T91管现场焊接措施

彭冲

湖北省电力建设第二工程公司，湖北武汉430030

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-06-25 发布日期:2011-06-25

Field welding method of T91 steel hightemperature superheater tube of boiler

PENG Chong

Hubei Second Electric Power Construction Engineering Company, Wuhan 430030, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-06-25 Published:2011-06-25

摘要/Abstract

摘要： T91钢焊接性较差，冷裂纹敏感性较强且存在一定的热裂纹倾向，现场焊接合格率较低。根据湖北华电黄石发电股份有限公司300MW热电联产工程现场的实际情况，总结了该工程锅炉高温过热器T91管焊接、充氩的方法及相关注意事项，可为同类电站锅炉T91管的焊接提供借鉴。

关键词: T91管焊接, 充氩, 锅炉过热器

Abstract: The T91 steel has poor weldability, stronger coolcrack sensitivity and certain hotcrack trend; so its field welding passing rate is lower. According to the site practical situation of the 300MW cogeneration project of Hubei Huadian Huangshi Power Generation Corporation Limited, the T91 steel superheater tube field welding of this project, the argon filling method and related matters needing attention were summarized, providing reference for similar power plant in T91 steel tube welding.

Key words: T91 steel tube welding, argon filling, superheater of boiler

彭冲. 锅炉高温过热器T91管现场焊接措施[J]. 华电技术, 2011, 33(6): 27-28.

PENG Chong. Field welding method of T91 steel hightemperature superheater tube of boiler[J]. Huadian Technology, 2011, 33(6): 27-28.