CPR1000机组全厂断电事故后备模式研究  

Study on the Fallback Mode of the Station Blackout for CPR1000

作　　者：李龙 吴震华 许俊俊 LI Long;WU Zhenhua;XU Junjun(Suzhou Nuclear Power Research Institutesoc,Shenzhen of Guangdong Prov.518000,China)

机构地区：[1]苏州热工研究院有限公司核安全与运行技术中心,广东深圳518000

出　　处：《核科学与工程》2021年第2期329-333,共5页Nuclear Science and Engineering

摘　　要：与法国CPY机组相比,CPR1000机组辅助给水系统(ASG)和水压试验泵汽轮发电机组(LLS)进行了设备换型,其运行参数和驱动方式相应改变,与之相关的全厂断电事故后备模式存在优化空间。本文通过分析全厂断电事故后果及处理策略,制定后备模式确定原则,提出CPR1000机组全厂断电事故后备模式参数优化方案。分析表明,将全厂断电事故后备模式的温度参数下调,可为核电厂应急组织多争取额外40min以恢复电源,有利于提升机组的安全水平。Compared with the French CPY unit,the auxiliary water supply system(ASG)and the hydraulic test pump turbine generator set(LLS)of CPR1000 have been retrofitted,and their operation parameters and driving mode have been changed accordingly.Therefore,there is room for optimization of the backup mode of the station blackout.In this paper,through the analysis of the consequences and the treatment strategy of the station blackout,the determination principle of the backup mode is formulated,and the parameter optimization scheme of the backup mode for CPR1000 is proposed.The analysis shows that reducing the temperature parameter of the backup mode of the station blackout can gain 40 minutes more for the emergency organization of the nuclear power plant to restore the power supply,which is conducive to improving the safety level of the unit.

关 键 词：全厂断电 后备模式 冷端温度 LLS ASG 

分 类 号：TL383[核科学技术—核技术及应用]