润滑油交流油泵振动问题分析及治理  

Analysis and Treatment of the Vibration Problem of AC Lubricating Oil Pump

作　　者：何小锋[1] 刘晓锋[1] 卢修连[1] 华东奇 马运翔[1] 何利鹏[1] 唐鹏涛 HE Xiaofeng;LIU Xiaofeng;LU Xiulian;HUA Dongqi;MA Yunxiang;HE Lipeng;TANG Pengtao(Jiangsu Frontier Electric Technologies Co.,Ltd.,Nanjing 211102,China;SPIC Jiangsu Electric Power Co.,Ltd.,Binhai 224500,China)

机构地区：[1]江苏方天电力技术有限公司,江苏南京211102 [2]国家电投集团协鑫滨海发电有限公司,江苏滨海224500

出　　处：《中国电力》2020年第1期169-176,共8页Electric Power

摘　　要：为了解决给水泵汽轮机交流润滑油泵的振动问题,保障机组的安全运行,采用了数值计算结合现场振动测试分析的方法,确认故障原因,设计合理的加固方案,最终解决振动故障。结果表明,交流油泵振动大,主要原因是由起支撑作用的油箱顶板垂直向整体刚度弱导致的共振和顶板受力后不均匀变形引起的泵底座倾斜所致。In order to solve the vibration problem of the AC lubricating oil pumps for the feed water pump driving turbine and ensure the safe operation of the unit,the method of numerical calculation combined with on-site vibration testing and analysis is adopted to diagnose the cause of the fault,then design a reasonable reinforcement scheme and eventually solve the vibration fault problem.The results show that the resonance caused by the weak vertical integral stiffness of the supporting oil tank roof and the uneven deformation of the roof from the tilt of the pump foot are the major reasons contributing to the large vibrations of the AC lubricating oil pumps.

关 键 词：油泵 振动 刚度 共振 不均匀变形 数值计算 

分 类 号：TM621[电气工程—电力系统及自动化]