浮动和接触密封对轴系振动影响的测试及分析  

Testing and analysis of impacts of floating and contact sealings on shaft system vibration

作　　者：施维新[1] 

机构地区：[1]国电热工研究院,陕西西安710032

出　　处：《中国电力》2004年第2期11-16,共6页Electric Power

摘　　要：介绍安装在容量为25～660MW发电机组轴系不同轴向位置上的浮动和接触密封对振动影响的测试结果,分析产生振动的机理及特征,提出诊断方法和防治对策,并对发电机转子密封瓦产生碰磨振动具备的条件作了论证。The paper introduces the testing results of impacts of floating and contact sealings on shaft system vibration(these sealings are installed on the different axial positions of shaft system of 25~660 MW turbo-generator units),analyzes the mechanism and characteristic of caused vibrations, puts forward the diagnosis method and preventive measures, and expounds and proves the conditions on which colliding-rubbing vibration on the sealing device of generator's rotor occurs.

关 键 词：氢冷发电机 汽轮发电机 浮动密封 接触密封 轴系振动 测试 密封瓦 

分 类 号：TM311.014.2[电气工程—电机]