宝泉抽水蓄能电站溢流坝体型优化试验研究  

The Research of Baoquan Pumped Storage Station Test of Bodily Form Optimalized

作　　者：董志慧 王二平[2] 戴小琳[2] 方进[2] 

机构地区：[1]珠江水利委员会科学研究所,广东广州510611 [2]华北水利水电学院,河南郑州450011

出　　处：《华北水利水电学院学报》2004年第3期12-15,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：宝泉抽水蓄能电站的下水库加高改建设计中的溢流坝体型较为特殊.溢流坝整体水工模型试验显示,水流通过堰面时与堰面分离,形成大面积低压气囊,堰面负压严重,流态不稳定 通过试验观测与分析找出了问题产生的主要原因.经改进试验,优化体型,调整堰顶平台与下游堰面连接段的形态,采用WES型曲面连接段及较大半径的圆弧曲面连接段,消除了堰面低压气囊,降低了堰面真空度,改善了水流流态 2个修改方案相比。The lower reservoir of Baoquan pumped storage should be rebuilt and heightened.The bodily form of this overflow is special. From the overflow dam hydraulic model test, when the flow passes through the weir surface,the flow is segregated from the weir surface and forms big low pressure air cell.The negative pressure of surface is serious.The current flow regime is unstable.Through observing and researching, the main reason of the result is analysed.Through modifying the test, optimizing the bodily form, adjusting the conformation of platform of the top of weir and backward position connecting sect,and adopting WES surface connecting sect and bigger radius circularly arc connecting sect,the low pressure air cell is eliminated,the vacuum degree is reduced,and the current flow regime is improved.Through the comparison of the two schemes,the WES surface connecting sect is preferable.

关 键 词：溢流坝体型 堰面气囊 水流流态 体型优化 

分 类 号：TV131.61[水利工程—水力学及河流动力学]