凝结水溶氧超标的原因分析及处理方案

Cause Analysis and Treatment Scheme of Excessive Dissolved Oxygen in Condensated Water

在凝汽式火力发电厂中,凝汽器是汽轮发电机组的重要附属设备之一,其作用之一是去除凝结水中的氧气,而凝结水溶氧超标大多数原因都是由于空气漏入冷凝器和真空系统或是凝汽器补水带入氧气所导致。以凝结水产生溶氧为基础,着重分析了导致凝结水溶氧超标可能性原因,并针对其原因提出了合理有效的控制治理方案,为供电厂工作人员在查找及处理凝结水溶氧超标问题时提供参考。

With the long-term operation of thermal power units,the phenomenon of excessive dissolved oxygen in condensate is inevitable from time to time. Most of the reasons are caused by air leaking into the condenser and vacuum system or oxygen brought in by condenser make-up water. Based on the dissolved oxygen produced by condensate,this paper focuses on the possible reasons for exceeding the standard of dissolved oxygen in condensate,and puts forward a reasonable and effective control scheme according to the reasons,to provide reference for the staff of power supply plant in finding and dealing with the problem of excessive dissolved oxygen in condensate.