BEST励磁机过临界振动问题分析与处理  

Analysis and Treatment of Overcritical Vibration Problem of BEST Exciter

作　　者：陈江 沙德生 王洋 何胜 吴国民 邹歆 汪帅 付利民 CHEN Jiang;SHA De-sheng;WANG Yang;HE Sheng;WU Guo-min;ZOU Xin;WANG Shuai;FU Li-min(China Huaneng Group Ltd.,Beijing 100031,China;Huaneng Clean Energy Research Institute Co.,Ltd.,Beijing 102209,China;Huaneng Qinmei Ruijin Power Generation Co.,Ltd.,Ganzhou 341000,China)

机构地区：[1]中国华能集团有限公司,北京100031 [2]中国华能集团清洁能源技术研究院有限公司,北京102209 [3]华能秦煤瑞金发电有限责任公司,赣州341000

出　　处：《汽轮机技术》2024年第4期315-317,320,共4页Turbine Technology

基　　金：中国华能集团有限公司科技项目“HNKJ22-H90《火力发电厂状态检修监督评价内容标准及实施细则研究制定与试点实施》”资助。

摘　　要：针对某厂BEST励磁机过临界振动问题进行了情况调研、振动测试和分析处理。确认励磁机临界转速位于常用转速区间加之转子不平衡是过临界振动大的主要原因。通过重新设计励磁机转子及支撑系统,严格控制加工制造工艺,彻底解决该问题。新转子在各转速范围振动均为优秀水平。In this paper,the overcritical vibration problem of BEST exciter of a factory was investigated,vibrated analyzed and disposed.It is confirmed that the critical speed of the exciter is in the common speed range and the rotor imbalance are the main reasons for the large overcritical vibration.By redesigning the exciter rotor and support system,and strictly controlling the manufacturing process,this problem was completely solved.The vibration of the new rotor was excellent in all speed ranges.

关 键 词：BEST小汽轮机 励磁机 临界转速 过临界振动 振动治理 

分 类 号：TK268.1[动力工程及工程热物理—动力机械及工程]