东坪水电站河床式厂房进水口流态改善方案研究与实效

大坝与安全 ›› 2019 ›› Issue (4): 42-48,67.

东坪水电站河床式厂房进水口流态改善方案研究与实效

钟平¹，胡春林¹，张贵金²

1. 国家电力投资集团五凌电力有限公司，湖南长沙，410004；2. 长沙理工大学，湖南长沙，410114

收稿日期:2019-04-24 出版日期:2019-08-30 发布日期:2019-08-30
作者简介:钟平（1965-）男，湖南长沙人，教授级高级工程师，从事水电建设与管理工作。

Research and effect of flow regime improvement scheme for intake of Dongping Hydropower Station

ZHONG Ping, HU Chun-lin and ZHANG Gui-jin

Wuling Power Corporation Ltd.

Received:2019-04-24 Online:2019-08-30 Published:2019-08-30

摘要/Abstract

摘要： 针对东坪水电站厂房进水口存在的严重水流紊乱、吸入式漩涡等影响机组运行出力和安全的问题，采用三维数值模拟、水工模型试验等手段进行多方案对比研究，选择了缩短导墙长度、降低拦沙坎高度等方案，并实施水下切割。项目实施后厂房进水口流态得到明显改善，机组稳定性、效率得到明显提升，达到了预期效果。对类似电站导墙等建筑物的布置具有良好的借鉴作用，实施方式具有较强的现实意义。

关键词: 东坪水电站, 厂房进水口, 流态, 导墙, 拦沙坎

Abstract: There were some safety problems existed in the water inlet of Dongping Hydropower Station, including severe turbulent flow and suction vortex. 3D numerical simulation and hydraulic model tests were used to analyze and compare different solution schemes. The final decision was to shorten the length of diverting wall and reduce the height of sediment control sill. After implementation of the measures, the inlet flow regime, the stability and efficiency of the turbines have been significantly improved to desired results. It has a good reference for similar hydropower stations.

Key words: Dongping hydropower station, water inlet, flow regime, diverting wall, sediment control sill

钟平，胡春林，张贵金. 东坪水电站河床式厂房进水口流态改善方案研究与实效[J]. 大坝与安全, 2019, 0(4): 42-48,67.

ZHONG Ping, HU Chun-lin and ZHANG Gui-jin. Research and effect of flow regime improvement scheme for intake of Dongping Hydropower Station[J]. Dam & Safety, 2019, 0(4): 42-48,67.

[1]	谢金记, 甘经国. 某水电站厂房尾水左导墙倾斜变位成因分析与处理[J]. 大坝与安全, 2021, 0(3): 68-.
[2]	王爱林, 黄维, 吴宏荣, 涂承义. 大渡河沙坪二级厂坝间导墙兼鱼道结构及稳定设计[J]. 大坝与安全, 2021, 0(1): 11-14,24.
[3]	岳竹，姜新忠. 月牙肋钢岔管锥管曲面导流板设计[J]. 大坝与安全, 2016, 0(5): 1-.
[4]	施永新. 湖南镇大坝7 号坝段导墙裂缝监测及处理[J]. , 2012, 0(3): 52-55.
[5]	吴中如，马福恒，顾冲时，田志俊. 青铜峡大坝河西下导墙变形性态分析[J]. , 1998, 0(4): 44-49.
[6]	潘松林，汪正春. 陈村水电站大坝右溢洪道导墙加固施工[J]. 大坝与安全, 1995, 0(1): 59-61.