供热汽轮发电机组转子弯轴事故的分析及处理  

Accident Analysis and Treament of a Heating Steam Turbine Generator Set Rotor Bending

作　　者：谷志德[1] 李恒海 王宏伟[1] 

机构地区：[1]甘肃省电力公司电力科学研究院,兰州730050 [2]华电电力科学研究院,杭州310030

出　　处：《大电机技术》2013年第5期41-44,共4页Large Electric Machine and Hydraulic Turbine

摘　　要：本文对一起供热汽轮发电机组转子弯曲事故的发生过程进行了分析,判断出造成该转子弯曲的主要原因是发生了动静碰摩,引起动静碰摩的直接原因则是上下汽缸温差过大。对该弯曲转子实施了校直、低速动平衡、联轴器端面瓢偏修复等技术措施后,机组顺利起动、并网发电,各轴承振动均小于30μm,达到优良水平。This paper analyzes the process of the rotor bending accident of the heating steam turbine generator set. It was confirmed that the main reason of rotor bending is rubbing and the direct reason of cause rubbing is large difference temperature of up and down of cylinder. After the bending rotor straightened and rotors low -speed dynamic balanced and the coupler end face restored, the units was started and combined to the grid smoothly, each bearing vibration achieves good level.

关 键 词：供热汽轮发电机组 转轴弯曲 动静碰摩 转轴校直 低速动平衡 

分 类 号：TM311[电气工程—电机]