紧凑型小型堆堆芯测量系统设计  

Design of In-Core Instrumentation System for A Compact Small Modular Reactor

作　　者：黄勇 郭伟 何伯阳 Huang Yong;Guo Wei;He Boyang(China Nuclear Power Technology Research Institute Beijing Division,Beijing,100086,China;China Nuclear Power Technology Research Institute,Shenzhen,518031,China)

机构地区：[1]中广核研究院有限公司北京分公司,北京100086 [2]中广核研究院有限公司,深圳518031

出　　处：《仪器仪表用户》2020年第9期58-61,20,共5页Instrumentation

摘　　要：二代加核电站应用的传统堆芯测量采用分散式设计,即堆芯中子注量率、堆芯温度和压力容器水位探测器分别布置,由此带来了压力容器开孔多、维护困难、集成度低、信号复用率低等问题。对于空间布置紧张的紧凑型小型堆而言,上述缺陷是无法接受的。因此,本文提出了一种可应用于紧凑型小型堆的测量一体化、固定式堆芯测量布置的堆芯测量系统,并介绍了该系统的组成和总体架构,重点阐述、分析了堆芯测点布置、堆芯一体化探测器组件、堆芯中子通量测量子系统、堆芯温度测量子系统设计等核心问题。Traditional IIS applied in the second generation nuclear power plant was designed in distribution structure,in which in-core neutron flux,temperature and the water level measurement subsystems were arranged dispread,resulted in low integration,low signal efficiency,maintenance difficulties,and multiple holing in the RPV.For highly compact SMRs,it’s impossible to adopt such system structure.According to the requirements of in-core measurement function,this paper designed a compact small reactor in-core instrumentation system.Hence that,this paper designed an integrated&embedded IIS,which may be applied in SMRs,introduced the composition and overall structure of the system,described and analyzed the in-core measuring point arrangement,in-core detector assembly,and the design of the in-core neutron flux measurement subsystem,the in-core temperature measurement subsystem and the RPV water level measurement subsystem.

关 键 词：小型堆 堆芯测量系统 堆芯测点布置 堆芯一体化探测器组件 

分 类 号：TP363[自动化与计算机技术—计算机系统结构]