某游泳池式反应堆全厂断电事故分析  

Analysis of SBO Accident for a Swimming Pool Reactor

作　　者：王桂敏[1] 李炜炜[1] 李宁[2] 郭文慧 

机构地区：[1]环境保护部核与辐射安全中心,北京100082 [2]中国原子能科学研究院,北京102413 [3]环境保护部华北核与辐射安全监督站,北京100029

出　　处：《原子能科学技术》2015年第5期858-862,共5页Atomic Energy Science and Technology

摘　　要：采用RELAP5/MOD3.3程序对某游泳池式反应堆的全厂断电事故工况进行计算,对堆内冷却剂流动逆转过程进行了模拟计算,并对全厂断电事故下堆芯漏流和组件间流动等相关参数对流动逆转的影响进行了深入分析。结果表明,该反应堆在失去全部强迫流动的情况下,能形成足够的自然循环流量,以导出堆芯余热,燃料组件不会发生破损。The RELAP5/MOD3.3 code was adopted to compute the SBO accident condi‐tion of a swimming pool reactor .The coolant flow reversal process was calculated ,and the influence of parameters of the flow between the core leakage and components on the flow reversal in the SBO accident condition was analyzed .The calculated results show that in the situation the reactor loses all forced flow ,the residual heat of the reactor can be removed by the natural circulation flow , and the fuel subassembly will not be damaged .

关 键 词：RELAP5 游泳池式反应堆 全厂断电 自然循环 

分 类 号：TL331[核科学技术—核技术及应用]