水轮机顶盖液位计卡阻原因分析及处理  

Analysis and Treatment of Stuck of the Water Level Gauge on the Top Cover of Hydro-turbine Units

作　　者：田源泉 汪林[1] 高玲[1] 黄鸿飞 赵子渊 TIAN Yuanquan;WANG Lin;GAO Lin;HUANG Hongfei;ZHAO ZiYuan(China Yangtze Power Co.,Ltd.,Wuhan 430013,China)

机构地区：[1]中国长江电力股份有限公司,湖北武汉430010

出　　处：《水电与新能源》2024年第11期49-52,共4页Hydropower and New Energy

摘　　要：水轮机顶盖排水系统采用的浮球连杆式液位计在实际运行中常发生卡阻,经过分析发现卡阻的主要原因为液位计连杆在启主泵液位处集中结垢或聚积污渍所致;通过改进液位计的设计制造、优化顶盖排水系统控制程序、加强设备检修维护工作,可有效降低顶盖排水系统液位计发生卡阻的概率,从而保障水轮发电机组的安全可靠运行。The floating ball connecting rod type water level gauge used in the cover drainage system of hydro-turbine units often experiences stuck phenomenon during its operation.Analysis shows that the stuck problem is mainly caused by the concentrated scaling or accumulation of stains on the connecting rod of the gauge at the main pump starting level.By improving the design and manufacturing of the water level gauge,optimizing the control program of the cover drainage system,and strengthening the equipment maintenance work,the probability of stuck of the water level gauge can be effectively reduced,thereby ensuring the safe and reliable operation of the hydro-turbine units.

关 键 词：水轮机 顶盖排水 液位计卡阻 缓变报警 逐降式启主泵液位 

分 类 号：TK73[交通运输工程—轮机工程]