稳压器安全阀卡开导致的堆芯熔化事故  

Study on Core Melting Accident Induced by One Stuck-Open Pressurizer Safety Valve

作　　者：吴鹏[1] 杨燕华[1] 林萌[1] 

机构地区：[1]上海交通大学核科学与工程学院,上海200240

出　　处：《核动力工程》2008年第4期112-116,共5页Nuclear Power Engineering

摘　　要：采用SCDAP/RELAP5程序分析了大亚湾核电站蒸汽发生器(SG)给水完全丧失后叠加稳压器安全阀卡开导致的堆芯熔化事故。基准事故分析的结果表明,该事故具有潜在的高压熔堆风险。缓解措施的研究表明,"充-排"措施可以有效地冷却堆芯。The core melting accident in DaYa Bay NPP, induced by the total loss of feedwater accident with one stuck-open pressurizer safety valve, is analyzed by using SCDAP/RELAP5 computer code. The analytical results of this base case indicate that it leads to core melting, and has the potential probability of high pressure core melting risk. At the same time, study on the mitigation measures indicates that the feed-bleed measure can cool the core effectively.

关 键 词：严重事故 缓解措施 充-排 

分 类 号：TL364.4[核科学技术—核技术及应用]