汽轮发电机组突发性振动故障分析和处理  

Analysis and Treatment of Abrupt Vibration Fault of Generation Unit

作　　者：张明[1] 魏继龙[2] 张柏林[2] 

机构地区：[1]湖南省电力培训中心,湖南长沙410131 [2]湖南省电力试验研究所,湖南长沙410007

出　　处：《湖南电力》2003年第3期46-48,共3页Hunan Electric Power

摘　　要：某厂 2号机在启动升速到 2 90 0 r/min左右或带负荷运行过程中 ,汽轮机 1号、2号轴承振动经常突然增加到 1 0 0 μm以上 ,降低润滑油温或提高润滑油压可以消除异常振动 ,换用新汽轮机转子以后再次出现上述振动现象 ,试验分析发现主要原因是汽轮机与发电机转子连接后对轮晃度较大及汽轮机转子残余不平衡量偏大。针对上述问题分别进行处理后 。The bears vibration of unit 1 and 2 often reaches 100μm above at the time when the speed of unit 2 reaches 2900r/min from stillness or during the period of load increasing of unit 2. The abnormal vibration disappears after lowering the lubricating oil temperature or raising the lubricating oil pressure.The vibration does not disappear after the rotor was replaced by a new one.Test and analysis show that it is the uneven connection between turbine and generator and the residue imbalance of the turbine rotor that causes the vibration. The abrupt vibration of the turbine disappears after the above problem are handled.

关 键 词：汽轮发电机组 转子 轴承 振动 故障分析 故障处理 

分 类 号：TM311[电气工程—电机]