火电厂凝结水溶氧增大原因分析及处理对策

Cause Analysis and Countermeasure for Condensate Water Dissolved Oxygen Increasing in Thermal Power Plant

在火力发电厂中,凝结水溶氧是凝结水质的重要指标之一。就某发电厂N125 MW汽轮机机组(12号机组)凝结水溶氧超标原因进行了简要分析,并对彻底解决12号机组凝结水溶氧长期超标的问题作了陈述,结果表明,凝结水溶氧由100μg/l降至10μg/l,同时消除了过冷度,提高了机组真空。

In the thermal power plant, the dissolved oxygen in condensed water is one of the important indexes for condensation water quality. The reasons for the dissolved oxygen out of the standard in condensed water of a power plant N125 MW unit （ No. 12 unit ） are analyzed, and the solution for the No. 12 unit dissolved oxygen out of the standard for long-term is presented. The results show that the dissolved oxygen in condensed water decreased from 100μg to 10μg ,resulting in eliminating the supercooling degree and improving the condenser vacuum.