导流洞改建为旋流式内消能泄洪洞的研究和实践——以公伯峡水电站为例  

Research and practice about reconstruction of diversion tunnel into permanent rotary internal energy dissipation tunnel: A case study on Gongboxia Hydropower Station

作　　者：牛争鸣[1] 洪镝[2] 谢小平[2] 贺立强[1] 

机构地区：[1]西安理工大学水力学研究所,陕西西安710048 [2]黄河上游水电开发有限责任公司,青海西宁810209

出　　处：《水利水电科技进展》2007年第1期36-41,共6页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金资助项目(50479025);四川大学高速水力学国家重点实验室开放基金资助项目(0302)

摘　　要：概述了国内外旋流式内消能工的研究与进展,认为该种内消能工是适合于高水头、大流量高坝建设的新型消能工,是一种适合将施工导流洞改建为泄洪洞的可行方案。以黄河公伯峡水电站为例,论述了竖井旋流式与水平旋流式内消能工在体型优化中的重点与方向问题;泄流能力的协调与匹配问题;通气孔的设计、消能率的构成、空化空蚀、衬砌标准与范围、下游水深的影响等问题。针对旋流式内消能工目前尚无任何设计规范可依据的情况,认为开展进一步的讨论和研究是有必要的。The research on the rotary internal energy dissipator at home and abroad was summarized. It is considered as a new kind of dissipator suitable for high dams with high water head and large discharge and as a feasible scheme for reconstruction of a diversion tunnel into a discharge channel. With Gonghoxia Hydropower Station on the Yellow River taken as an example, some related problems were discussed, including the key points on the shape optimization of horizontal and vertical rotary internal energy dissipator, the adjusting and matching of discharge capacity, vent design, composition of damping ratio, cavitation erosion of connection parts, the standard and region of liner, and the influence of downstream water level. However, the rotary internal energy dissipator needs to be further studied because there lacks a criterion for its design.

关 键 词：导流洞改建 旋流式内消能 公伯峡水电站 

分 类 号：TV651.3[水利工程—水利水电工程]