水口电站水轮机主轴密封改造结构分析

水口电站采用的水压式端面密封为我国目前应用较广的水轮机主轴密封型式，本文结合电站具体情况，指出这种密封在大尺寸轴流式水轮机上使用的局限性。并介绍了现有水轮机主轴密封结构，水口主轴密封改造的成功为大尺寸轴流式水轮机主轴密封的开发设计提供了可供借鉴的经验。

Construction Analysis of Main Seal Reform for Shikou Power Station

Water-pressed main shaft Seal used for Shuikou stahon have ho applied to power stations widelyin our counts. In this poper, the limitation of the seal used for bigger dimension Kaplan turbins is pointedout, and construction of shaft seal usal now are introduced. The successful experience about the constrUctionof the shaft seal reform for Shuikou power station can be used for reference tO development and design of theblarer dimension Kaplan tulbine.