压力容器2024，Vol.41Issue(11)：43-48,6.DOI:10.3969/j.issn.1001-4837.2024.11.006
蒸汽发生器传热管胀接环槽缺陷分析及解决方案
Analysis and disposal of expansion circular defect of heat transfer tube for steam generator
李伟 1张慧2
作者信息
- 1. 中国中原对外工程有限公司,北京 100044
- 2. 哈电集团(秦皇岛)重型装备有限公司,河北 秦皇岛 066206
- 折叠
摘要
Abstract
Aiming at circular defect of steam generator after hydraulic expanding in the manufacturing stage of a certain project,the shape and size of defect joints were analyzed.Process test was conducted,and the results show that the mechanical connection strength of defect joints were exceed 10 700 N;velocity of permeability in tube to tubesheet gap was 35.8 mm/min at 5 MPa;tube was bonding to tubesheet well at defct area;and risk of cracks due to residual stress after NC30Fe tube expanding was less than austenitic steel pipe at the same condition.Performance of defect joints all meet RCC-M 2007 rule and design specification.Reliability of expanding joint with circular defect was verified,and the research results provide a reference for familiar non-conformance disposal.关键词
压水堆核电站/蒸汽发生器/胀接/环形缺陷Key words
PWR nuclear power plant/steam generator/expansion/circular defect分类
机械制造引用本文复制引用
李伟,张慧..蒸汽发生器传热管胀接环槽缺陷分析及解决方案[J].压力容器,2024,41(11):43-48,6.
