1036MW机组凝结水溶解氧超标的原因分析及对策  

Analysis on the Reason of the Over-proof Dissolved Oxygen in the Condensate for 1036MW Power Unit and its Countermeasures

作　　者：陈韶华[1] 孙伟鹏[1] 林楚伟[1] 

机构地区：[1]华能海门电厂,广东汕头515132

出　　处：《电站辅机》2012年第4期45-48,共4页Power Station Auxiliary Equipment

摘　　要：对某2号机组进行了A级检修后,重新启动机组运行,发现凝结水的溶解氧量一直处于超标状态,其数值在80～130μg/L之间。通过对现场情况的了解,并对凝结水溶解氧量的超标情况进行分析,发现系统内存在漏点,经采取措施后,凝结水溶解氧量超标情况得到了显著改善,其数值恢复到5～10μg/L之间,达到了机组运行的设计要求。After overhaul ending and starting of No. 2 power unit, dissolved oxygen in condensate is often in over-proof condition, whose value varies between 80 μg/L～130μg/L. Aiming at the phenomenon, the cause was analyzed on the dissolved oxygen over-prod in condensate in the paper and existing leakage in vacuum system was found, and then corresponding mesures were put forward. The situation of dissolved oxygen in the condensate has been improved significantly, whose value varies between 5/μg/L~ 10 μg/L, and obtains the requirements, of design of the unit.

关 键 词：机组 凝结水 溶解氧 运行 超标 泄漏 原因 分析 

分 类 号：TM621.7[电气工程—电力系统及自动化]