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热力发电  2015 

立式泵组结构共振分析及治理

, PP. 94-97

Keywords: 凝结水泵,立式泵组,固有频率,结构共振,振型图,振幅,支撑刚度,动平衡

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Abstract:

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。

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