核电厂废气处理系统双重气体分析仪设置探讨

Discussion on Setting of Dual Gas Analyzers in Nuclear Power Plant Waste Gas Treatment System

本文探讨了核电厂废气处理系统双重气体分析仪设置的概念以及设置的必要性,可以为气体分析监测系统设计和改造提供参考。本文通过对相关系统氢、氧燃爆的事故(件)的分析,对我国主要堆型气体分析仪的设置和运行情况的分析,以及向NRC技术官员咨询,论证了气体分析仪不但能预防上游氧气进入废气处理系统,而且能及时警报上游系统设备氧气进入。本文证明,进行气体分析仪双重设计是必要的。

This paper was intended to discuss the dual gas analyzer concept and its installing necessity in the waste gas treatment system of nuclear power plants(NPP),and to provide a reference for the design or modification of waste gas analysis monitoring system.By the analysis of the accidents(occurrences)of hydrogen-oxygen combustion or explosion in the relevant systems,the analysis of the gas analyzer setting and operation situation of the domestic main reactor-type NPP,and the consultation with the NRC technical officials,it was believed that the gas analyzer was able to not only prevent the upstream oxygen from entering the waste gas treatment system but also timely alert the oxygen entering upstream system equipment Therefore,it was necessary to carry out a dual gas analyzer design.