核电厂一回路水压试验策略变更的风险研究  

Research on the Risk Analysis for Hydraulic Test Modification on Primary Coolant System in Nuclear Power Plant

作　　者：姚刚 段永强[1] YAO Gang;DUAN Yongqiang(Nuclear Power Instituted of China,610213,Chengdu,China)

机构地区：[1]中国核动力研究设计院,成都610213

出　　处：《东方电气评论》2024年第5期55-59,共5页Dongfang Electric Review

摘　　要：国家核安全局发布技术政策,推动国内执行RES-M在役检查要求的核电机组实施一回路水压试验策略调整。本文通过对比研究一回路水压试验与替代试验的差别,提出了一种定量评估一回路水压试验策略调整的风险分析方法,并以某执行RES-M体系要求的核电机组一回路水压试验策略调整为例,分析该核电机组一回路水压试验策略调整的风险。分析结果表明,该核电机组一回路水压试验策略调整后的风险增量较小,满足风险可接受准则。本文研究成果对国内执行RES-M体系的核电机组一回路水压试验策略调整的安全风险分析具有重要借鉴意义。The technical policy on hydraulic test modification of primary coolant system in nuclear power plants is issued by National Nuclear Safety Administration in 2023 to promote the adjustment of the hydraulic test strategy for domestic nuclear power units implementing the RES-M in-service inspection rule.Firstly,this paper compares the differences between the current primary hydraulic test strategy and alternative test.And then,based on the identified difference,a risk analysis method for quantitative evaluation of primary hydraulic test strategy adjustment is developed.Finally,taking the adjustment of primary hydraulic test strategy of a nuclear power plant that implements the RES-M in-service inspection rules as an example,this paper briefly analyzes the risk of the adjustment of primary hydraulic test strategy based on mentioned risk analysis methods.The research results show that the risk increment caused by the adjustment of the primary hydraulic test strategy is small and acceptable,and which can provide an important reference on the risk analysis for the hydraulic test modification of primary coolant systems in nuclear power plants with RES-M system in China.

关 键 词：水压试验 策略变更 泄漏试验 概率安全分析 

分 类 号：TM623[电气工程—电力系统及自动化]