混流式水轮机转轮高程偏低问题的分析与处理  

Analysis and Treatment of Low Elevation Problem ofMixed-flow Hydro-turbine Runner

作　　者：高锐 王俊康 黄华平 杨军 柳庆华 李东 GAO Rui;WANG Junkang;HUANG Huaping;YANG Jun;LIU Qinghua;LI Dong(Loushui Hydropower Co.,Ltd.,Hubei Energy Group,Enshi 445400,China)

机构地区：[1]湖北能源集团溇水水电有限公司,湖北恩施445400

出　　处：《水电与新能源》2024年第8期6-9,共4页Hydropower and New Energy

摘　　要：水轮发电机组各部件的安装高程,转动部件与固定部件的相对位置必须与设计值保持一致,这是机组安全稳定、高效经济运行的根本保证。芭蕉河电厂4号机组水轮机转轮高程偏低7.2 mm,在行业内实属罕见,在扩修中收集大量的数据与实测对比、分析判断,找到了造成这一状况的原因,研制与实施了最优的处理方案,使机组运行时的振摆、耗水经济性都有明显改善,可供解决同类型问题参考。The installation elevation of each component in a hydro-turbine generator unit,as well as the relative positions of the rotating and fixed components,must be consistent with the design values,which is the fundamental guarantee for the safe,stable,efficient and economical operation of the unit.The elevation of the hydro-turbine runner in the No.4 unit in Bajiaohe Hydropower Plant is 7.2 mm lower than the design value,which is rare in the industry.During the expanded maintenance,a large amount of data was collected and compared with the actual measurements.The causes of the problem were analyzed and determined.Then,the optimal treatment scheme was developed and conducted.With the treatment,the vibration and the water consumption economy of the unit during operation were significantly improved.It can be useful reference for the treatment of similar problems.

关 键 词：混流式 悬吊型 转轮 高程偏低 抬升 

分 类 号：TM312[电气工程—电机]