摘要
根据田坝水电站的水头参数、泥沙含量及运行情况,在水轮机选型时充分考虑能量特性、汽蚀特性及稳定性等方面的因素,选用2种转轮直径(两大一小)的水轮发电机组。在水轮机结构设计时,考虑到机组均属于中高水头小型水轮机,对水轮机的强度、刚度和狭小空间及抗磨蚀方面有着特殊的要求,因而在结构、材质及制造方面相应地采取了一些措施。
According to the field of dam water head hydropower station, sediment concentration and operation parameters, it presents two wheel diameter （two small） for hydro- generator units at the hydraulic turbine in full consideration of the energy characteristics, cavitation performance and stability and other factors. In the turbine structure design, it takes into account the units as all small hydro turbine high water head for the strength of turbine, stiffness and narrow space abrasion resistant. This design takes measures in the struc- ture, material and manufacturing.
关键词
中高水头
水轮机
选型
结构设计
High Water Head
Turbine
Selection
Structure Design
