大亚湾核电站堆芯冷却监测系统改造

Modification Design and Implementation of Core Cooling Monitoring System in Daya Bay NPP

针对大亚湾核电站堆芯冷却监测系统(CCMS)面临部件老化、备件无法采购导致系统工作不稳定及故障报警闪发的现状,提出对CCMS进行整体升级改造。描述新CCMS采用国产化安全级仪控平台Firmsys的设计方案,以及对新CCMS的功能及接口等关键技术进行研究与分析;介绍在安装调试阶段遇到的技术问题及其解决方法。对改造后系统进行功能验证,以实现CCMS的自主化设计和改造。

In order to solve the problems of aging of core cooling monitoring system, and the unstable work and the flash failure alarm of CCMS due to unavailability of some old parts in Daya Bay Nuclear Power Station, the modification of the whole upgrading program is proposed. The design of new CCMS using localization instrument control platform （ Firmsys ） is described. The research and analysis for the key technology of new CCMS function and interface is done. The installation and commissioning stage of handling technical problems and the solution is described. The new system has been functionally verified. Finally the independent design and renovation of CCMS is realized.