润滑油交流油泵振动问题分析及治理

doi:10.11930/j.issn.1004-9649.201904070

摘要/Abstract

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。

关键词: 油泵, 振动, 刚度, 共振, 不均匀变形, 数值计算

Abstract: 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.

Key words: oil pump, vibration, stiffness, resonance, non-uniform deformation, numerical calculation

何小锋, 刘晓锋, 卢修连, 华东奇, 马运翔, 何利鹏, 唐鹏涛. 润滑油交流油泵振动问题分析及治理[J]. 中国电力, 2020, 53(1): 169-176.

HE Xiaofeng, LIU Xiaofeng, LU Xiulian, HUA Dongqi, MA Yunxiang, HE Lipeng, TANG Pengtao. Analysis and Treatment of the Vibration Problem of AC Lubricating Oil Pump[J]. Electric Power, 2020, 53(1): 169-176.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201904070

https://www.electricpower.com.cn/CN/Y2020/V53/I1/169

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