三门核电厂稳压器安全阀误开启事故研究Accident Analysis for Inadvertent Opening of Pressurizer Safety Valve in Sanmen NPP
陈杰,唐钢,邵舸,佟立丽
摘要(Abstract)：
稳压器安全阀用于核电站一回路系统和设备的超压保护,如果发生故障卡开,将造成冷却剂丧失事故(LOCA)。本文使用机理性分析程序对三门核电厂1号机组进行建模,并对稳压器安全阀误开启导致的LOCA事故进行模拟分析,研究在稳压器水位较高的情况下,非能动安全设施对LOCA事故的响应情况。之后,为验证三门核电站对类似三哩岛事故的应对能力,假设丧失给水叠加稳压器安全阀卡开事故并进行相应事故分析。通过以上两个事故的分析表明,三门核电厂的非能动安全设计能够应对稳压器安全阀故障造成的LOCA事故,保证对一回路补水,不会造成非常严重的事故后果。
关键词(KeyWords)： 稳压器安全阀;事故分析;LOCA
基金项目(Foundation):
作者(Author): 陈杰,唐钢,邵舸,佟立丽
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