多泥沙河流引水式电站过机泥沙对水轮机磨蚀的影响研究  

The influence of sediment passing through turbine of diversion type hydropower station on the cavitation and abrasion of hydraulic turbine in heavily silt-carrying rivers

作　　者：白俊岭[1] 丁兆亮[1] BAI Junling;DING Zhaoliang(China Water Resources Beifang Investigation Design and Research Co.Ltd.,Tianjin 300222,China)

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《水科学与工程技术》2020年第6期20-23,共4页Water Sciences and Engineering Technology

摘　　要：某工程为明渠引水式电站,天然河道汛期含沙量较大,电站水头高,泥沙对机组磨蚀问题突出,工程设计了沉沙池,从运行一个汛期的检查结果与设计计算进行了对比,设计参数是基本合适的,从优化沉沙池设计和调整运维方案的比较分析,合理确定机组检修和大修的时间也可以在满足运行安全的条件下尽量降低效益损失,为同类工程的设计和运用提供了参考。The open channel diversion type power station is located in the natural river with large sediment concentration and high water head in flood season.The grit chamber is designed to deal with the problem of abrasion of sediment on the hydraulic turbine.It is believed that the design parameters are basically appropriate by comparing the inspection results of a flood season with the design calculations.Through the comparative analysis of the optimization of desilting basin design and adjustment of operation and maintenance schemes,a reasonable determination of the time for the overhaul of the unit can also minimize the loss of benefits while meeting the operation safety.A reference is provided for the design and application of similar projects.

关 键 词：引水式电站 高水头 泥沙 磨蚀 水轮机 沉沙池 

分 类 号：TK730.8[交通运输工程—轮机工程]