整体热处理工艺在AP1000核电站循环水管道施工中的应用  

Application of Overall Heat-treatment Technique in Circulating Water Pipes Construction of AP1000 Nuclear Power Plant

作　　者：谢忠 

机构地区：[1]浙江省火电建设公司,杭州市310016

出　　处：《电力建设》2010年第12期90-92,共3页Electric Power Construction

基　　金：国家工程项目(发改能源[2004]1861号)

摘　　要：核电冷却循环水管道主要材料为Q345、直径大、钢板厚、焊缝多、加固环间距小、拘束度大,焊接时较容易产生焊接应力,焊后进行热处理是消除焊接应力的重要措施。文章对核电冷却循环水大口径管道的热处理施工方法和技术进行了探讨,分析了焊后热处理的工艺参数及质量检验,为同类大口径管道的焊后热处理施工提供借鉴。The Q345 pipes are used in nuclear power plants for cooling water circulation.Since this kind of pipe has the property of large diameter,thick plate,a plurality of weld seam,short space distance between reinforcement rings and big constraint,heat treatment should be conducted as an important measure to reduce the welding stress.This paper discussed on the heat treatment procedure and techniques for the cooling circulation water pipes with large-caliber for nuclear power plants,and analyzed the post welding technological parameters and quality inspection for the heat-treatment procedure,which can provide reference for the post welding heat treatment of other large-caliber pipes of the same type.

关 键 词：AP1000 核电钢制管道 整体热处理 工艺参数 焊接 大口径管 

分 类 号：TM62[电气工程—电力系统及自动化]