浅谈我国核电厂重要厂用水系统换热器隔离阀门与放射性监测仪表配置优化

Optimization of Configuration of Heat Exchanger Isolation Valve and Radioactivity Monitoring Instrument in Essen-tial Service Water System of Nuclear Power Plant in China

对于运行核电厂来说,重要厂用水系统与质量和安全密切相关。核电厂重要厂用水系统用于导出设备冷却水系统所传输的热量,将其输送到海水中,因此是核岛的最终热阱。本文描述了当前我国大部分核电厂重要厂用水系统换热器隔离阀门与放射性监测仪表的配置现状,分析了包括美国、法国以及国际原子能机构对于重要厂用水系统设计要求的相同点与不同点,结合一些实际发生的运行事件,分析得出我国目前核电厂重要厂用水系统换热器隔离方式与美国核电厂标准审查大纲要求的差异,以及该配置导致的利弊,并结合我国对于重要厂用水系统设计相关法规、导则的要求,提出合理的配置改进建议。

For the operation of nuclear power plants,essential service water systems are closely related to quality and safety.The essential service water system is used to remove heat from the cooling water system of the plant and transfer it to the sea water,thus serving as the final heat sink for the nuclear island.This article describes the current our country most of the nuclear power plant water system heat exchanger isolation valve with the configuration status of radiation monitoring instrument,including the United States,France,and the Internationa Atomic Energy Agency(IAEA)is analyzed for the similarities and differences of essential service water system design requirements,combined with the actual operating events,analysis our country current nuclear power plant isolation method of heat exchanger in essetial service water system with the United States nuclear power plant standards review program requirements caused by the difference and the configuration of the pros and cons,and combined with China’s relevant laws and regulations for essetial service water system design,the requirements of the guidelines,the paper proposes some suggestions to improve the reasonable configuration.