YANG Zhen-xue, SONG Shao-weiGuodian Heze Power Plant. CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF[J]. Thermal power generation, 2007, (7): 82-84.
DOI:
YANG Zhen-xue, SONG Shao-weiGuodian Heze Power Plant. CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF[J]. Thermal power generation, 2007, (7): 82-84. DOI: 10.19666/j.rlfd.2007.07.024.
CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF
摘要
针对菏泽发电厂2×300 MW机组实际运行中凝结水溶解氧超标问题
结合凝汽器补水、凝结水泵密封水和给水泵密封水回水运行方式进行分析
找出凝结水溶解氧超标原因。经改造
凝结水溶解氧浓度降至30μg/L以下
达到运行标准
同时机组真空严密性也得到改善。
Abstract
Directing against the problems of surpassing set standard for dissolved oxygen in condensate during the time of practical operation of 2×300 MW units in Heze Power Plant
Combining with the back-water operation mode of make-up water for the condenser
sealing water of the condensate pump
and sealing water of the feed-water pump
analysis has been carried out
to find out the causes leading to surpassing set standard for dissolved oxygen in the condensate.Through retrofit
the dissolved oxygen in condensate has reduced to below 30μg/L
reaching set standard in operation.At the same time
the tightness of vacuum in units has also improved.