水轮机尾水管凑合节与转轮室连接处裂纹分析处理  

Analysis and Solution for Crack between Connection of Runner Chamber and Expansion Joint of Turbine Draft Tube

作　　者：郭磊[1] 吴良有 

机构地区：[1]南昌工程学院机械与动力工程系,江西南昌330099 [2]广西平班水电开发有限公司,广西南宁533402

出　　处：《水电能源科学》2010年第2期134-136,共3页Water Resources and Power

基　　金：江西省教育厅科学技术研究基金资助项目(GJJ08450)

摘　　要：介绍了平班水电站尾水管凑合节与转轮室连接处存在较长裂纹的现象,初步分析了裂纹的形成受水轮机安装施工质量、机组运行方式及协联曲线等影响。采用补焊、化学灌浆等措施处理裂纹,效果较好。This paper introduces the crack between connection of runner chamber and expansion joint of turbine draft tube in Pingban Hydropower Station and analyzes the influence of installation construction quality, unit operation mode and combined relationship of water turbine on crack. Some measures including repair welding and chemical grouting can be taken to deal with crack effectively.

关 键 词：尾水管 转轮室 裂纹 补焊 化学灌浆 

分 类 号：TK733.5[交通运输工程—轮机工程] TK730.8[动力工程及工程热物理—流体机械及工程]