竖井旋流泄洪洞在抽水蓄能电站中的应用  

Application of Swirl Shaft Spillway in Pumped-storage Power Station

作　　者：方劲 周国斌 郭建设 吴秋芳 FANG Jin;ZHOU Guobin;GUO Jianshe;WU Qiufang(Bureau of Water Resources of Huizhou City,Huizhou,51600,China;Shanxi Vocational University of Engineering Science and Technology,Taiyuan,030000,China;Guangdong Hydropower Planning&Design Institute Co.,Ltd.,Guangzhou,510635,China)

机构地区：[1]惠州市水利局,广东惠州516003 [2]山西工程科技职业大学,太原030000 [3]广东省水利电力勘测设计研究院有限公司,广州510635

出　　处：《广东水利水电》2024年第12期43-46,67,共5页Guangdong Water Resources and Hydropower

基　　金：山西省高等学校科技创新基金项目(编号:2024L429);山西工程科技职业大学校级科研基金项目(编号:KJ202330)。

摘　　要：水库泄洪设施是抽水蓄能电站建设的重要组成部分,将施工导流洞改建成泄洪放空设施,施工期临时导流,运行期常规泄洪,能够减少土石方开挖,保护环境,节省投资。基于水工模型试验研究,竖井旋流泄洪洞竖井进口采用无闸门潜水起旋墩,引导水流形成有空气腔的旋转流,结合竖井底部形成的环形水跃和盲洞、消力墩构成洞内消能工,后接顶压板形成退水隧洞无压流,这种设计不仅可以防止洞内空蚀,同时也可降低出口消力池的消能压力,研究成果可为同类工程提供借鉴。Flood discharge facility was an important part in pumped storage power station.The diversion tunnel was transformed into a flood discharge and empouting facility,which was used as a diversion tunnel during construction period and a flood discharge tunnel during operation period.The earth and rock excavation volume was reduced,the environment was protected and the investment was saved.Based on the hydraulic model test research,the submersible blocks of spiral flow generator without gate was adopted in the inlet of the swirls shaft spillway tunnel to guide the water flow rotating with air cavity.Combined with the annular hydraulic jump,the blind tunnel and the dissipating pier at the bottom of the shaft,the energy dissipator in the tunnel was formed.The non-pressurized flow was formed by the top pressure plate in TAIL RACE TUNNEL.The cavitation in the tunnel was prevented and the energy dissipation pressure of the outlet stilling pool was reduce,which has the reference value for the same type of project.

关 键 词：抽水蓄能电站 导流洞 竖井旋流泄洪洞 潜水起旋墩 消能工 

分 类 号：TV651.3[水利工程—水利水电工程]