主蒸汽管道破裂叠加蒸汽发生器传热管破裂事件树分析

Event Tree Analyses of Steam Generator Heating Surface Tube Rupture Induced by Main Steam Line Break

用事件树分析方法对压水堆核电厂主蒸汽管道破裂诱发的蒸汽发生器传热管断裂进行了事故序列分析 ,找出了引起堆芯裸露的支配性事故序列。结果表明 ,由主蒸汽管道破裂诱发的蒸汽发生器传热管断裂导致堆芯裸露的频率为1

The accident sequence analyses of steam generator heating surface tube rupture induced by main steam line break are presented The reactor core uncovering accident occurring frequency is 1 04×10-6/r a The dominant accident sequence resulting reactor core melt has also been identified