活塞消能式调压室可行性研究

Feasibility Study of Piston Energy Dissipation Surge Chamber

在简单式调压室与阻抗式调压室的结构基础上,提出一种新型调压室——活塞消能式调压室,通过论述活塞消能式调压室的结构特点及工作原理,采取理论分析与模型试验相结合的方式,对活塞消能式调压室的消能效果进行了论证。试验结果显示,活塞式消能调压室消能效果与活塞阻抗板质量相关,质量越大消能效果越好;相较于简单式调压室,加入活塞的调压室,其水位波动时间短、振幅小,引水道-调压室稳定效果好。

A new type of surge tank—piston energy dissipation surge tank is proposed based on the structures of simple surge tank and throttled surge tank. The structure characteristics and operation principle of piston energy dissipation surge tank are introduced, and the energy dissipation effect is demonstrated by using theoretical analysis and model test. The experimental results show that：（ a） the effect of energy dissipation is related to the quality of impedance plate, the higher the deadweight,the better the effect; and（ b） compared to simple surge tank, the water-level fluctuation duration in piston surge tank is shorter, the amplitude is smaller and the stabilizing effect of surge tank with diversion channel is better.