水电站水轮机改造中的新技术

New Techniques for Rehabilitation of Hydro Turbines of Hydro Power Plant

传统的水轮机改造方法是根据改造电站的水轮机过流部件和运行条件 ,采用多方案设计和模型试验对比技术来进行。作者分析了水轮机改造中要注意的主要问题 ,提出一套基于数值模拟的水轮机改造新技术 ,并简介了在水电站水轮机改造中的应用情况。

The traditional way for rehabilitation of hydro turbines is a trial and error method by using the model tests with several design schemes based on modification of the existing hydraulic passageway and operating conditions. In this paper, after the main problems for rehabilitation of turbines are analyzed, we present a set of new techniques for rehabilitation of hydro turbines,and some illustrations are also briefly introduced.