大亚湾核电站18个月换料非失水事故分析  

GNPS 18-Months Fuel Cycles Non-LOCA Accident Analyses

作　　者：张虹[1] 刘昌文[1] 蒋晓华[1] 周洲 卢毅力[1] 

机构地区：[1]中国核动力研究设计院,成都610041 [2]广东核电合营有限公司,广东深圳518124

出　　处：《核动力工程》2002年第5期44-48,69,共6页Nuclear Power Engineering

摘　　要：大亚湾核电站由年换料改为18个月换料,燃料组件由AFA 2G改为AFA 3G,堆芯中子学参数发生了较大变化。因此,需要对许多事故重新进行分析。本文给出了大亚湾核电站18个月换料设计中非失水事故分析的主要假设和结果,并简要介绍了在18个月换料设计中应用的一些重要方法。分析结果表明,所有的事故均满足安全准则的要求。The reload strategy is from 12 months to 18 month of GNPS, the fuel assembly changed from AFA 2G to AFA 3G and core nuclear data are also changed, thus many accidents need to be reanalyzed. The Non-LOCA accidents include the main steam system depressurization, the steam system piping failure, loss of forced reactor coolant flow accident, reactor coolant pump shaft locked rotor, uncontrolled RCCA bank withdrawal from a subcritical condition, uncontrolled RCCA bank withdrawal at power, single RCCA withdrawal at power, rod drop, uncontrolled boron dilution and RCCA ejection. This report presents the main assumptions used in our analysis, analysis results and brief introduction of the main design method of non-LOCA accidents analysis in GNPS 18 months fuel cycles project. The analysis results demonstrate that all the criteria are respected.

关 键 词：大亚湾核电站 换料时间 非失水事故 事故分析 反应堆 安全 

分 类 号：TL364.4[核科学技术—核技术及应用] TM623.8[电气工程—电力系统及自动化]