汽轮机不稳定振动分析及处理  

Analysis and Treatment on Unstable Vibration of Steam Turbines

作　　者：谷志德[1] 冯垚飞[1] 王宏伟[1] 张瑞山[1] 李恒海 

机构地区：[1]国网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：《发电设备》2015年第6期419-422,共4页Power Equipment

摘　　要：对一台135 MW的汽轮机发生不稳定振动故障的原因进行了分析,发现是因为转子质量不平衡和动静碰摩引起的。采取转子高速动平衡、消除汽轮机本体热力系统管道缺陷的措施后,汽轮机振动状态稳定且满足安全运行的要求。To solve the problem of unstable vibration existing in a 135 MW steam turbine, an analysis was conducted, after which the error was found to be caused by mass unbalance of the rotor and collision between the rotary and static parts. Stable vibration satisfying safety operation requirements of the steam turbine is now obtained, after taking following countermeasures, such as high-speed dynamic balancing of rotor, elimination of pipeline defects in the thermal system of steam turbine, etc.

关 键 词：汽轮机 振动 动静碰摩 高速动平衡 

分 类 号：TK268.1[动力工程及工程热物理—动力机械及工程]