CPR1000余热排出泵地震工况可运行性评价准则初步研究

Preliminary Study on Evaluation Criterion of CPR1000 Residual Heat Removal Pump Operability upon Seismic Condition

核安全级泵地震工况的可运行性直接影响核电厂安全,需通过鉴定验证其地震工况下的功能。文中以CPR1000余热排出泵为研究对象,利用故障模式及影响分析(FMEA)方法进行地震工况下泵的故障模式及影响分析,筛选出影响泵可运行性的薄弱环节,并基于零部件的功能和运行要求,提出地震工况下泵组可运行性的评价准则。

The operability of nuclear safety class pump upon seismic condition influences the safety of nuclear power plants directly. The function of pump upon seismic condition should be qualified. The CPR1000 motor-driven residual heat removal pump is used to act as subject investigated in this paper. According to the result of the failure mode and effect analysis （FMEA）, the weakness of pump upon seismic condition which affects the operability is selected. Based on the function and operating requirement of the assembly, the evaluation criterion of pump operability upon seismic condition is provided in the paper.