【摘要】 对大亚湾核电站死管段相关的核一级电动阀阀门组件的机械老化机理进行了讨论,并针对阀门组件的失效模式,对老化敏感点进行了识别,选出最重要的老化敏感点进行分析讨论,确定其预警值,最后提出并归纳了一些适合大亚湾核电站实际情况的老化缓解对策。更多还原

【Abstract】 The article analyzes the aging mechanism and the possible failure modes of safety class 1 Motor-valve subassembly with dead pipe phenomenon in Daya Bay NPP;The most important aging suscep-tibility point is screened and discussed,and then the alarm value is established,Finally,some methods for aging mitigation adapted in Daya Bay NPP are brought forward and summarized.更多还原