水电站压力前池容积研究

水电站压力前池是连接渠道与压力引水管的中间建筑物,具有调节和平稳水头之功用,其容积大 小、前池水面开阔程度对保证水电站的正常运行,改善水流流态至关重要。对已建工程前池容积特性的统计分析发 现,现有的压力前池功用微弱、相对投资较大,在技术和经济上很不合理。在广泛调研的基础上,经理论分析给出了 前池容积的“量化”计算方法,并从统计“众数”的角度,给出了相关尺寸确定的参考值,以避免前池容积确定的盲目 性和任意性。

Research on the forebay volume of hydropower station

The forebay of hydropower station,a middle building connecting the channel and the pressure pipeline,has the function of regulating and stablizing the head of water. Its size and degree of the surface of water width are crucial to guarantee the normal operation of power station and to improve the fluid state. The statistical analysis of characteristic of the completed project forebay shows that its function is weak and its investment is large,which is unreasonable in technology and economy. On the basis of extensive survey and study,the author finds the method to calculate the "quantity" of volume of the forebay by theoretical analysis and provides the reference value of the confirmed relevant size in "counting mode",to avoid the blindness and wanton when the volume of the forebay is confirmed.