控制棒水力驱动系统失效落棒的故障树分析  

Fault Tree Analysis of Control Rod Drop Caused by Failure of Hydraulic System of Control Rod Drive

作　　者：黄新民[1] 张亚军[1] 

机构地区：[1]清华大学核能技术设计研究院,北京100084

出　　处：《核科学与工程》2002年第1期21-26,共6页Nuclear Science and Engineering

摘　　要：动力堆的年非计划停堆次数是衡量其运行性能的一个重要指标。控制棒水力驱动系统是核供热堆的关键系统之一 ,其运行失效将直接导致供热堆的非计划停堆。运用故障树分析的方法 ,建立以“控制棒非计划下落”为顶事件的故障树 ,分析计算系统各组成单元失效造成控制棒下落、引起非计划停堆顶事件的发生概率 ,并从提高系统运行可靠性的角度出发 ,根据故障树分析的结果 ,提出设计改进意见。Unplanned outage times per year is an important indicator of operation performance for power reactor.The hydraulic system of control rod drives is one of the key systems in a nuclear heating reactor.The unplanned outage will be directly caused by the system failure.The unplanned outage caused by the failure of components in the system will be discussed with the method of fault tree analysis.The issues will be concentrated on the setup of the fault tree,analyzing the probability of topmost event and giving some suggestions on improving the system design based on the fault tree analysis result.

关 键 词：水力驱动系统 失效 落棒 供热堆 故障树 非计划停堆 

分 类 号：TL364.4[核科学技术—核技术及应用] TL351.5