一回路主管道超声检查策略研究
Study on the Ultrasonic Inspection Strategy for the Primary Pipeline
曹光辉 1李守彬 2罗立群 2孔晨光 2金弘琨1
作者信息
- 1. 苏州热工研究院有限公司,广东 深圳 518026;国家核电厂安全及可靠性工程技术研究中心,江苏 苏州 213372
- 2. 大亚湾核电运营管理有限责任公司,广东 深圳 518124
- 折叠
摘要
取消一回路水压试验导致核电厂风险增加,为了补偿取消一回路水压试验导致的风险增加,国家核安全局要求增加对一回路管道焊缝的超声检查.某CPR1000 核电机组准备取消一回路水压试验,需要对一回路管道 24 道环焊缝制定超声检查策略.本文参考风险指引型在役检查的分析方法,对不同检查策略进行了风险评估,为一回路主管道环焊缝超声检查策略的制定提供支持.
Abstract
In order to compensate for the increased risk caused by canceling the primary system hydraulic tests,the National Nuclear Safety Administration requires increasing the ultrasonic inspection of the primary pipeline welds.A CPR1000 nuclear power plant is going to cancel the primary system hydraulic tests,so it is necessary to formulate ultrasonic inspection strategy for 24 welds of the primary pipeline.Referring to the analysis method of the risk-guided in-service inspection,this paper evaluates the risks of different inspection strategies,and provides support for the formulation of primary inspection strategies.
关键词
一回路水压试验/风险指引/超声检查/概率安全评价Key words
Primary system hydraulic tests/RI-ISI/Ultrasonic inspection/Probabilistic safety assessment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据