江苏宜兴抽水蓄能电站3号机组过速试验异常水击现象的研究  

The Research of the Abnormal Water Hammer Phenomenon based on the Unit 3 over Speed Test of Jiangsu Yixing Pumped Storage Power Station

作　　者：蔡军 周喜军[2] 邓磊[2] 张文辉[2] 

机构地区：[1]华东宜兴抽水蓄能有限公司,江苏宜兴214205 [2]华东电力试验研究院有限公司,上海200437

出　　处：《水力发电》2009年第2期76-79,共4页Water Power

摘　　要：江苏宜兴抽水蓄能电站机组调试期间,3号机组进行过速试验时出现了异常的振动声音和活动导叶异步现象。针对该异常现象,根据水击理论,结合水泵水轮机模型综合特性曲线"S"特性区特性进行了理论分析,得出该异常现象的主要影响因素为负水击,并通过减慢导叶第二段关闭速度解决了过速试验的异常现象。During the commissioning period of Jiangsu Yixing Pumped Storage Power Station, abnormal vibration noise and misalignment of guide vane occurred when over-speed test on No.3 generating unit was carried out. According to the theory of water hammer and the ＂S＂ characteristics of the pump turbine hill diagram, this paper analyzes the abnormal phenomenon and deduces that its main reason is negative water hammer, which was solved by slowing the second closing speed of guide vane.

关 键 词：水泵水轮机 过速试验 水击 导叶关闭速度 

分 类 号：TV730.7[水利工程—水利水电工程] TV743