老龙口工程混流与轴流水轮机选择分析

Selection between mixed-flow turbine and axial-flow turbine for Laolongkou project

水电工程设计过程中,经常遇到处于交界水头的水轮机选型问题,本文根据老龙口水利枢纽工程设计过程,对处于交界水头内的混流式与轴流式水轮发电机组的选择进行了定量的分析,本着从工程总体出发的原则,从技术和经济角度论证了两种转轮应用于交界水头、不同引水形式电站的优越性和不足。

Selection turbine at the junction water head is a problem in the design of hydropower project.This paper makes quantitative analysis to select water turbine between mixed-flow and axial-flow at the junction water head based on the design process of Laolongkou hydro-junction.the superiority and weakness of the two turbines which are used at junction water head and different diversion type hydropower are proved from technological and economic point of view.