灯泡贯流机组径向导轴承烧瓦事故分析与处理  

Analysis and Handling for Burnt-bush of Radial Guide Bearing in Bulb Hydrogenerating Unit

作　　者：李友松 

机构地区：[1]广西昭平水电厂,广西贺州546800

出　　处：《大电机技术》2008年第1期13-15,共3页Large Electric Machine and Hydraulic Turbine

摘　　要：下福电厂2#机组在初期运行过程中,先后发生了两次发电机径向导轴承烧瓦事故,主要原因是低转速运行造成油膜无法正常建立,油液中含有杂质颗粒,轴瓦间隙配合不合理等。针对性地采取了一系列措施:保证高压顶起系统正常工作,杜绝机组低转速运行时间过长,保证油质,选取合理的轴瓦间隙,保证工作面光洁度,完善瓦温预警系统等。成功地处理了烧瓦问题,现机组已安全连续运行近9个月,运行情况良好。Radial guide bearing bush-burnt fault took place twice in No.2 unit of Xia-fu hydro-power plant during initial operation period. The main reasons are the failure to build up oil-film at low speed, the impurity of the oil, unreasonable bush clearance etc. The bush-burnt fault has been eliminated successfully by taking a series of measures including guaranteeing normal function of high-pressure jacking system, avoiding long period operation at low speed, improving oil quality and bearing bush clearance etc. The unit has operated continuously about 9 months.

关 键 词：灯泡贯流机组 径向轴瓦烧瓦 故障分析 

分 类 号：TM31[电气工程—电机]