除氧器快冷技术停机后在缩短循环泵运行时间方面的应用研究  

A Study on the Application of the Rapid Cooling Technology of the Deaerator in Shortening the Running Time of the Circulating Water Pump After the Shutdown

作　　者：陶勇 赵永国 杨洪涛 焦俊杰 TAO Yong;ZHAO Yongguo;YANG Hongtao;JIAO Junjie(China Energy Heze Power Generation Co.,Ltd.,Heze Shandong 274032,P.R.China)

机构地区：[1]国家能源菏泽发电有限公司,山东菏泽274032

出　　处：《重庆电力高等专科学校学报》2022年第6期33-36,共4页Journal of Chongqing Electric Power College

基　　金：国家能源集团菏泽发电有限公司五小课题项目(2018年1月至2019年1月)。

摘　　要：某电厂330 MW凝汽式汽轮机停运后,机侧各系统大量疏水会导致低压缸排汽温度高且下降缓慢,循环水泵需要运行较长时间才能使低压缸排汽温度低于50℃以下,厂用电被大量浪费。为解决这一问题,尝试通过改变机组原有运行方式来加快凝结水冷却速度,减少循环水泵运行时间,提前设备检修开工工期。After the 330MW condensing turbine of a power plant was shut down,the exhaust temperature of the low-pressure cylinder was high and decreased slowly due to a large amount of drainage of the systems at the side of the turbine.The circulating water pump needed to operate for a long time to make the exhaust temperature of the low-pressure cylinder below 50℃,which wasted a lot of auxiliary power.In order to solve the problem,this paper proposes changing the original operating mode of the unit to accelerate the cooling speed of the condensed water,reducing the operating time of the pump,and advancing the construction period of the equipment maintenance.

关 键 词：除氧器 冷却 循环水泵 优化 经济性 330 MW 

分 类 号：TM621[电气工程—电力系统及自动化]