CPR1000+核电厂RPN通道改进的影响分析  

Impact Analysis of RPN Channel Modification for CPR1000+ NPP

作　　者：赵常有[1] 韩嵩[1] 沈华韵[2] 石秀安[1] 付学峰[1] 

机构地区：[1]中科华核电技术研究院有限公司,深圳518026 [2]北京应用物理与计算数学研究所,北京100088

出　　处：《核科学与工程》2015年第2期250-255,共6页Nuclear Science and Engineering

摘　　要：CPR1000+核电厂反应堆堆腔土建结构、反应堆压力容器保温层等设计相对传统二代加核电厂进行较大改进,本文对改进前后的RPN处中子注量率进行计算,根据计算结果对RPN定值及功能等进行分析,其结果表明,CPR1000+核电厂RPN原有功能和系统冗余性要求仍能得到保证。In CPR1000＋ nuclear power plant, the diameter of thermal insulation was larger than the original diameter of RPN detector＇s position, then RPN can＇t get the right position, and some function of RPN would be not achieved. The RPN channels needed to be modified to ensure the RPN functional requirements and redundancy of the system. The neutron flux changes of RPN chambers after modification were calculated. And the values used in source range channel, intermediate range channel and power range channel were checked one by one. The analysis results show that the modification of RPN channel has little impact on core protection, core surveillance and core control.

关 键 词：堆外核仪表系统 探测器 蒙特卡罗程序 

分 类 号：TL363[核科学技术—核技术及应用]