高水头抽水蓄能机组主轴密封型式对比分析  

Comparative analysis of main shaft seal types for high-head pumped storage unit

作　　者：王志楠 沈华哲 刘功亮 陈万里 蒋玉林 WANG Zhi-nan;SHEN Hua-zhe;LIU Gong-liang;CHEN Wan-li;JIANG Yu-lin(CSG Power Generation Company Overhaul and Testing Center,Guangzhou,511400,China)

机构地区：[1]南方电网调峰调频发电公司检修试验分公司,广东广州511400

出　　处：《水电站机电技术》2020年第3期1-3,61,71,共5页Mechanical & Electrical Technique of Hydropower Station

摘　　要：当前高水头抽水蓄能电厂水泵水轮机常用的主轴密封型式主要有自补偿式轴向密封和自补偿径向密封。本文分别介绍上述两种密封结构特点、工作原理并进行对比分析及总结。同时,根据设计理论及检修经验对两种类型主轴密封检修维护分别给出了建议。At present, self-compensating axial seal and self-compensating radial seal are commonly used as main shaft seals for pump turbine of high-head pumped storage power station. This paper introduces these two seals in terms of structural features and operating principle, makes corresponding comparative analysis and summary, and gives suggestions on the maintenance of these two main shaft seals according to design theory and maintenance experience.

关 键 词：水泵水轮机 轴向主轴密封 径向主轴密封 

分 类 号：TK730.325[交通运输工程—轮机工程]