一种气体放射性取样管线内冷凝水去除新方法

A Sampling Radioactive Gas Pipeline Internal Condensate Removal Methods

田湾核电站辐射监测系统中实时监测气态流出物放射性活度是重要的监测功能之一;监测反应堆厂房排风系统放射性的气体取样介质到达低温区域产生凝结水,造成气态流出物放射性活度监测功能失效;本文描述了气体放射性取样管线内冷凝水去除的新方法,并通过实施验证了其有效性。该方法已在田湾核电站其它系统防冻领域得到应用推广,已作为田湾核电站扩建工程辐射监测系统设计参考。

Tianwan nuclear power plant radiation monitoring system in the real-time monitoring of gaseous effluent activity is one of the important function of monitoring. Monitoring reactor building ventilation system of the radioactive condensate gas sampling medium to low temperature area, causing the radioactive gaseous effluents activity monitoring function failure; this article describes a new method of condensate gas radioactive sampling the line to remove, and its validity is verified by the implementation. The method has been popularized in other tianwan nuclear power plant system has been applied field of antifreeze, has been as the tianwan nuclear power plant expansion project of the radiation monitoring system design reference.