摘要
根据核动力系统中设备冷却泵的工作状态,将冗余泵组的中止回阀看成两个冗余阀,得出简化的可靠性分析框图,并建立泵组的可靠性分析模型。以核动力装置设备冷却泵组为例,分别计算泵组在3种情况下的可靠度。计算结果表明,冗余泵组比单个泵工作的可靠性高,但冗余泵组中泵和阀之间的相关失效削弱了泵组的可靠性。
According to the work conditions of the component cooling pumps in nuclear-powered systems, the check valve in redundant pumps is taken as two redundant valves. Reliability chart was drawn and reliability analysis model was built up. Based on the example of equipment cooling pumps in nuclear-powered systems, the reliability of pumps in three conditions was separately calculated. Final results show that the reliability of two-component redundancy is much higher than that of single component, but the dependent failures between pumps and valves in redundancy decrease the reliability.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2009年第1期5-7,共3页
Nuclear Power Engineering
关键词
冗余泵组
设备冷却水泵
可靠度
相关失效
Redundant pump group, Equipment cooling pumps, Reliability, Dependent failure
