多泥沙河流水轮机泥沙磨蚀及防护研究  

Research on silt abrasion of hydro-turbine on sediment-laden river and protection measures

作　　者：杜敏[1] 刘正勇[2] 陈祖嘉[2] 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]中水顾问集团成都勘测设计研究院机电处,四川成都610072

出　　处：《人民长江》2011年第24期73-75,共3页Yangtze River

摘　　要：多泥沙河流运行的水电站均存在水轮机磨蚀的问题。为了寻求可行的措施以减少水轮机的泥沙磨蚀、改善机组运行条件、延长检修周期和提高水电站的经济效益,在实地调研的基础上,分别从泥沙特性、建筑物及机组设计、运行条件等方面造成水轮机磨蚀的因素进行了分析,提出了优化水轮机设计、提高调度和运行合理性、加强状态检修和水轮机过流部件防护等改善泥沙磨蚀的手段和措施,对减轻水轮机磨蚀程度、延长机组运行寿命有一定的参考意义。The abrasion and corrosion on hydro-turbine is a problem that affects the safe operation of hydropower stations on sediment-laden rivers.In order to find the feasible measures to reduce abrasion and corrosion and improve the operation condition,prolong maintenance interval and improve the economic benefits,based on field inspection of some serious abrasion stations,we analyze the factors causing abrasion and corrosion on turbine from the aspects of sediment characteristics,turbine design,project design,operating conditions,etc.,some protective measures are proposed in terms of optimizing turbine design,reasonable schedule and operation,improving maintenance,strengthening the protection of surface of turbine,etc.

关 键 词：水轮机 磨蚀 防护 多泥沙河流 

分 类 号：TV734.1[水利工程—水利水电工程]