某水电站分层取水进水口脉动压力模型试验

Model experiment study on fluctuating pressures in variable elevation intake for a certain hydroelectric station

为满足下游河道的生态需要,某电站拟通过设置多重导水叠梁门,采用分层取水进水口引水发电.通过水工模型试验,对进水口水流脉动压力进行测试,分析了分层取水进水口脉动压力的大小与分布规律,验证了这种设计方案的可行性,并为分层取水进水口的结构设计提供了荷载依据.

To meet ecological demand in the downstream channel, variable elevation intake is adopted by installing the training stoplog gates in a certain hydroelectric station. The flow pattern in this intake is different from flow pattern in conventional intake due to the effect of stoplog gates. The complex fluctuating pressures occur in the course of generating electricity. Through the hydraulic structure model experiments, the fluctuating pressures in this intake are tested. The fluctuating pressure distribution law in the variable elevation intake is drawn; and the feasibility of the design scheme is verified. The experimental results provide a load basis for structural design of the variable elevation intake.