某57MW汽轮发电机组油膜涡动问题分析与处理  

Analysis and treatment of oil film whirl of a 57MW steam turbine generator set

作　　者：丁俊杰 居国腾 刘腾洋 DING Junjie;JU Guoteng;LIU Tengyang(Zhejiang Binhai Power Generation Co.,Ltd,Shaoxing 312030,China)

机构地区：[1]浙江浙能绍兴滨海热电有限责任公司,浙江绍兴312030

出　　处：《能源工程》2024年第2期88-92,共5页Energy Engineering

摘　　要：油膜涡动是汽轮机常见故障之一,在运行时发生涡动会对设备造成一定损伤。本文以57MW汽轮发电机组为例,阐述机组在A修后发生#3轴承振动异常上升现象,通过分析振动特征数据、运行调整实验,准确判断出油膜涡动故障。通过轴瓦修刮、中心调整,提高轴承稳定能力,维持合适的油膜厚度,最终消除油膜涡动故障,保障了汽轮发电机组的稳定运行。Oilfilm whirling is one of the common faults in steam turbine,which will cause damage to equipment during operation.a 57MW turbogenerator unit taken as an example,in this paper,the abnormal rise of#3 bearing vibration after A-class repair is described,and the oil film whirling fault is accurately identified by analyzing the vibration characteristic data and running adjustment experiments.By scraping and adjusting the center of the bearing,the bearing stability is improved,the oilfilm thickness is maintained,the oilfilm eddy fault iseliminated,and the stable operation of the turbine generator set is guaranteed.

关 键 词：汽轮发电机组 油膜涡动 振动 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]