东江电厂水轮机尾水管里衬破坏原因初探  

Analysis of the destruction of the Francis turbine draft tube inner side of dongjiang power plant

作　　者：韦彩新[1] 罗赤橙[1] 张双全[1] 

机构地区：[1]华中科技大学能源与动力工程学院

出　　处：《华中科技大学学报（自然科学版）》2003年第7期66-68,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (5 99790 0 7)

摘　　要：以东江水电厂混流式水轮机尾水管里衬破坏为研究对象 ,采用三维数值模拟方法对尾水管流态进行研究 ,指出了尾水管破坏是由于尾水管中形成了偏心旋涡产生的对尾水管的横向力 。The destruction of the francis turbine draft tube inn er side was investigated based on the 3-D numerical simulation of the francis tur bine installed in Dongjiang Power Plant. The study indicated that the destructio n was due to the transverse force caused by the acentric vortex in the draft tub e. Avoiding low-load operating or injecting air into the draft tube if necessar y is suggested.

关 键 词：水轮机 尾水管 破坏 三维数值模拟 

分 类 号：TK730.134[交通运输工程—轮机工程]