国产引进型300MW汽轮发电机组改造后轴系振动原因分析及处理  

Cause Analysis and Treatment for Shafting Vibration of Domestic-importing 300MW Steam Generator

作　　者：杨士华[1] 邹志宇[1] 陶瑾[1] 

机构地区：[1]上海外高桥发电有限责任公司,上海200137

出　　处：《华东电力》2010年第5期754-756,共3页East China Electric Power

摘　　要：介绍了外高桥发电有限责任公司2号机经过改造性大修后,在启动过程中及并网后发生异常振动的处理情况。通过对整个机组进行开机全过程的振动监测,对采集的振动数据及图形进行研究分析,并经过一系列试验,确诊了5、6号瓦振动超标的原因是发电机底脚连接刚度不够,采取了正确的处理措施,最终在不停机的情况下使机组振动情况达到优秀水平。In this paper,the solution for the vibration of the No.2 generator in Waigaoqiao Power Generation Co.,Ltd.after reparation is introduced.By monitoring the vibration during the startup proceeding,analyzing the data and graphic and doing series of tests,it was found that the cause for the vibration of No.5,No.6 bearing bush was the poor rigidity of the generator′ base.After adjustment,the vibration of the generator was kept in an excellent level.

关 键 词：汽轮发电机组 启动 振动 刚度 底脚螺栓紧力 

分 类 号：TK26[动力工程及工程热物理—动力机械及工程]