水轮机主轴中心孔补气装置的研究  

Study on Aeration Valve for Spindle Hole of Turbine

作　　者：韦彩新[1] 谭月灿[1] 

机构地区：[1]华中理工大学

出　　处：《大电机技术》1998年第5期41-42,F004,共3页Large Electric Machine and Hydraulic Turbine

摘　　要：水轮机尾水管水压力脉动引起水轮机的强烈振动，常用补气的方法减振。主轴中心孔球形阀补气减振是最常用的方法，但是球形阀易损坏，使补气失效。本文介绍一种新的中心孔补气装置，它克服了球形阀补气装置的缺点，在电站使用取得了满意的减振效果，该装置就是主轴中心孔平面密封式补气装置。Pressure pulsation of draft tube arouses strenuous vibration of turbine The way of air admission is often adopted to alleviate vibration The set of spherical valve in spindle hole is common used for air admission But, The spherical valve is damaged with ease A new method for air admission that is set of spindle hole for plane sealed is introduced in this paper It overcome the shortcoming in air admission by spherical valve and made a success of alleviating vibration in power station

关 键 词：水轮机 主轴中心孔 补气装置 

分 类 号：TK730.321[交通运输工程—轮机工程]