N125汽轮机异常振动分析及处理  

Analysis and Treatment of N125 Turbo-generator Abnormal Vibration

作　　者：魏哲 田海军 

机构地区：[1]湖南金竹山电厂,湖南冷水江417503

出　　处：《湖南电力》2003年第2期42-44,共3页Hunan Electric Power

摘　　要：通过对某厂 1 2 5 MW机组在工作转速下轴振和瓦振异常的分析 ,指出这种异常的主要原因是油挡与转轴摩擦以及轴承座动刚度下降 ,从减小激振力和提高动刚度 2个方面有针对性地进行处理后 。The abnormal shaft and bearing vibration symptom of a 125MW turbo generator unit at normal speed is analysed in the paper.It is pointed out that the abnormity is mainly due to the decrease of bearing rigidness and the friction between the revolving shaft and the oil catch.As a result,the measure of decreasing the vibration excitation and increasing the dynamic bearing rigidness are proposed.Practice shows that the measure is effective.

关 键 词：N125型 汽轮机 异常振动 故障分析 故障处理 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]