Structure resonance of vertical pump unit:fault analysis and countermeasures

HE Guoan; GONG Wei; LI Zhiqiang; ZHANG Weijun

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Structure resonance of vertical pump unit:fault analysis and countermeasures

更新时间：2025-09-28

- Structure resonance of vertical pump unit:fault analysis and countermeasures
- Thermal Power Generation Vol. 44, Issue 11, Pages: 94-97(2015)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 国电电力大连庄河发电有限责任公司
  3. 北方联合电力达拉特发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH38
- Published：2015
- 稿件说明：
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HE Guoan, GONG Wei, LI Zhiqiang, et al. Structure resonance of vertical pump unit:fault analysis and countermeasures[J]. Thermal power generation, 2015, 44(11): 94-97.
DOI：

HE Guoan, GONG Wei, LI Zhiqiang, et al. Structure resonance of vertical pump unit:fault analysis and countermeasures[J]. Thermal power generation, 2015, 44(11): 94-97. DOI：

摘要

基于立式泵组的结构及安装特点

分析了其在现场频繁发生结构共振故障的原因

推荐采用振型图法来识别结构共振源

并根据具体情况选择加支撑、调整结合面的接触面积和水平度、以及现场动平衡等处理措施

消除或缓解立式泵组的结构共振故障。将该方法应用于某2台凝结水泵的振动故障处理后

振动降至合格水平

表明该方法可为类似振动故障的处理提供参考。

Abstract

On the basis of the structure and installation characteristics of vertical pump unit

the reason why structure resonance fault frequently occurs in site was analyzed

and the solution measures were put forward.The vibration mode diagram method was recommended to identify the structure resonance source.Then

according to the actual situation

several measures can be taken to alleviate or eliminate the structure resonance

such as adding supports

adjusting the contacting area and level

field dynamic balance and others.Finally

this solving method was applied on two condensate pumps and the vibration reduced to normal level

indicating this method is effective.

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