某1000 MW汽轮发电机组轴系振动故障分析及处理  

Analysis and Treatment of Shafting Vibration Faults of a 1000 MW Steam Turbine Generator Set

作　　者：张泽 王涛 王浩 张昕 孔佑顺 Zhang Ze;Wang Tao;Wang Hao;Zhang Xin;Kong Youshun(Xi’an Branch of North China Electric Power Research Institute Co.,Ltd.,Xi’an 710000,China;North China Electric Power Research Institute Co.,Ltd.,Beijing 100032,China)

机构地区：[1]华北电力科学研究院有限责任公司西安分公司,西安710000 [2]华北电力科学研究院有限责任公司,北京100032

出　　处：《发电设备》2023年第6期399-402,408,共5页Power Equipment

摘　　要：某电厂1000 MW汽轮发电机组调试期间存在振动隐患。通过对机组振动信号进行采集、储存、分析,以及对机组故障特征进行总结分类,判断机组转子存在一定的不平衡量。基于谐波分量法对机组进行动平衡试验,以及进行平衡调整,解决了该机组轴系振动偏大的问题,机组各轴瓦振动达到正常水平。研究结果为其他轴系平衡方法提高平衡精度、减少机组启停次数提供了可靠的方法,同时为同类型机组一次加重提供理论指导和实践证明。There was a potential vibration hazard during the commissioning of a 1000 MW steam turbine generator set in a power plant.By collecting,storing and analyzing the vibration signals of the unit,the fault characteristics of the unit were summarized and classified,and the unbalance of the unit rotor was determined.Based on the harmonic component method,the dynamic balance test was conducted on the unit and the balance adjustment was carried out for the unit,which solved the problem of large shafting vibration of the unit and made the vibration of each unit bearing liner reach a normal level.It provides a reliable method for other shafting balancing methods to improve the balancing accuracy and reduce the start-stop frequency of the unit,and at the same time provides theoretical guidance and practical proof for the first weight of the same type unit.

关 键 词：汽轮机 轴瓦 振动 谐波分量法 动平衡 

分 类 号：TK14[动力工程及工程热物理—热能工程]