竖井贯流式水轮发电机组转轮改造技术分析

Technical analysis on runner re-modification of pit tubular generator unit

本文主要介绍了贵岭左岸水电站竖井贯流式水轮发电机组转轮的两次改造情况,分析了改造过程中的流道与额定水头、叶片数及机组结构与稳定性等问题,最后总结了影响机组稳定运行的因素并对其原因进行了探讨,其经验对类似机组的改造提供了借鉴意义。

This paper mainly describes two re-modifications of pit tubular generator units in Guiling Hydropower Plant(on left bank),analyzes such items as flow channel,rated head,number of blades and structure and stability of units and finally summarizes factors influencing steady operation of units and explores corresponding reasons.The re-modifications provide a reference for re-modification of other similar units.