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.
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:
立式泵组结构共振分析及治理
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