响水涧抽水蓄能电站上、下库进(出)水口分流特性研究

根据响水涧抽水蓄能电站上、下库进(出)水口水工模型试验结果,对上、下库侧式进(出)水口分流特性进行分析计算。引入"单位流速"的概念,用以调整进(出)水口扩散段分流墩头部间距,对下库进(出)水口采用分流墩头部不等间距布置和等间距布置进行对比试验研究,结果表明等间距布置分流效果较不等间距布置分流效果有明显改善;结合工程布置,采用单位流速法,可对侧式进(出)水口的分流间距进行快速调整,以获得水力损失小、流态良好的进(出)水口体型布置。

Flow-dividing characteristics of intakes/outlets in upper and lower reservoirs of Xiangshuijian Pumped Storage Station

Based on the hydraulic model tests,the flow-dividing characteristics of intakes/outlets in upper and lower reservoirs of Xiangshuijian Pumped Storage Station were analyzed.The unit velocity method was introduced to adjust the spacing between the splitter walls at the entrance of diffuser section in side-type intakes/outlets.Comparative tests on unequal and equal spacings between the splitter walls of intakes/outlets in the lower reservoir were performed.The test results show that the arrangement of equal spacing is an improvement of that of the conventional unequal spacing.By adopting the unit velocity method in the project layout,the splitter wall spacing of side-type intakes/outlets can be quickly adjusted so as to achieve a better configuration with small hydraulic loss and satisfactory flow regime.