下庄水电站首部取水口设计方案比选

Frist Water Intake Design Scheme Comparison of Xiazhuang Hydropower Station

为增大下庄水电站进水口引用流量,扩大其装机容量,采用数学模型法对下庄水电站首部取水口3种设计方案进行比选,并结合物理模型研究了推荐方案的可行性。结果表明,方案3首部取水口数模流态良好,流速分布均匀,满足取水口工程要求;二维数学模型模拟取水口三维水流有一定缺陷,但整体流态分布大致相同,对于实际工程仍有一定指导意义。研究结果可作为下庄水电站扩容改造的理论依据。

In order to expand installed capacity,a new water intake was adopted to increase the flow of Xiazhuang hydropower station.The method of mathematical model was used to optimize and select the first water intake of design schemes.Then physical model was adopted to study the feasibility of the recommended scheme.The results show that the recommended scheme 3is in a good flow pattern.The velocity distribution is uniformity and meets the requirements of water intake engineering.Simulation of three-dimensional flow of water intake has some defects with two-dimensional mathematical model,but the overall flow distribution is roughly the same,which has certain guiding significance to the actual engineering.The results can be used as a theoretical basis for expanding installed capacity and reform of Xiazhuang hydropower station.