水电站底环导叶轴孔空蚀破坏原因分析与处理  

Analysis and Treatment of the Cavitation Erosion Damage Problem of the Guide Vane Shaft Holes in Bottom Ring of Hydro-turbine Unit

作　　者：李权[1] 谢斐[1] LI Quan;XIE Fei(Hubei Qingjiang Hydroelectric Development Co.,Ltd.,Yichang 443000,China)

机构地区：[1]湖北清江水电开发有限责任公司,湖北宜昌443000

出　　处：《水电与新能源》2022年第10期51-55,共5页Hydropower and New Energy

摘　　要：水布垭电站3台水轮机在扩修中发现底环导叶轴孔呈现规律性空蚀破坏现象,引起检修人员对该现象产生原因和处理方法的关注与重视。对此问题的产生原因进行了研究,分析出产生空蚀破坏的主要因素。结合现在应用成功的新工艺和材料,探索优化改进底环导叶轴孔被空蚀的运行情况。During the maintenance of the hydro-turbine units in Shuibuya Hydropower Station,regular cavitation erosion problem is observed in the guide vane shaft holes in bottom ring.Major causes of the problem are determined.Then,new technologies and materials that have been successfully applied are explored to optimize and improve the cavitation erosion issue of the guide vane shaft holes.

关 键 词：底环 空蚀 Q345 马氏体不锈钢 镍基合金 

分 类 号：TV698[水利工程—水利水电工程]