main feedwater pump

Several designs of main feedwater system isolation in the present nuclear power plants are introduced.

介绍了目前核电厂主给水系统隔离的几种设计方案,从事故进程和核电厂运行事件两个方面阐明了每种设计方案的优劣,得出了符合核安全原则的设计方案,这一分析对核电厂的设计和改造有一定的借鉴作用。

Based on an integral system analysis computer code,a severe accident sequence induced by loss of feed water(LOFW) plus failure of auxiliary feed water,with external reactor vessel cooling(ERVC) measure,was calculated for 900 MWe nuclear power plant.

针对900 MW级压水堆核电厂,采用一体化严重事故分析工具,对主给水丧失(LOFW)始发事件叠加辅助给水失效严重事故下,采取堆腔注水(ERVC)缓解措施的事故进程进行模拟,对该措施缓解堆芯熔化进程、保持压力容器完整性的有效性进行分析验证,并对注水速率、注水高度和注水时间对该措施的影响进行了分析。