安全注入系统与安全壳喷淋系统早期互为备用事故策略研究  

Study on the Accident Strategies for the Mutual Standby of the Safety Injection System and Containment Spray System in the Early Stage

作　　者：吴广君 王超[1] 李龙 梅亮 杨自军 WU Guangjun;WANG Chao;LI Long;MEI Liang;YANG Zijun(Suzhou nuclear power research institute,Shenzhen of Guangdong Prov.,518000,China)

机构地区：[1]苏州热工研究院有限公司深圳分公司,广东深圳518000

出　　处：《核科学与工程》2022年第2期436-442,共7页Nuclear Science and Engineering

摘　　要：在大部分CPR1000堆型核电厂中,安全注入系统(RIS)和安全壳喷淋系统(EAS)的互为备用仅应用于大LOCA(Lossofcoolantaccident)事故工况后15天。阳江核电厂5号、6号机组进行了H4管线(安全注入系统和安全壳喷淋系统互为备用的连接管线)改进,将安全注入系统和安全壳喷淋系统的互为备用也可应用于中、小LOCA事故的早期工况。本文研究RIS系统和EAS系统早期互为备用在状态导向法事故运行程序SOP(StateOrientedProcedure)中的应用,结合基于H4管线改进的现实性事故分析,设计出中、小LOCA叠加H4工况(低压安注泵全部失去或喷淋泵全部失去)事故处理的策略及手段。The mutual standby of the safety injection system and the containment spray system is applicable to the large LOCA accident after 15 days in CPR1000 nuclear power plant. The H4 pipeline(The mutual standby connecting line between the safety injection system and the containment spray system) modification is introduced in the Unit 5 & 6 of Yangjiang NPP.And the mutual standby of the safety injection system and the containment spray system is applicable to the accident medium or small LOCA in the early stage condition. The study on the application of mutual standby of the safety injection system and the containment spray system in the early stage of the state oriented procedure(SOP) is based on the realistic accident analysis of H4 pipeline modification. The SOP strategies and mean s of medium or small LOCA accumulated H4 condition(The total loss of low pressure safety injection pumps or containment spray pumps) in the early stage condition are designed.

关 键 词：核电厂 安全注入系统 安全壳喷淋系统 早期 互为备用 

分 类 号：TL48[核科学技术—核技术及应用]