Science popularization of Wan Kun fan——What are some possible reasons for a large vibration in a fan?
Today, Wan Kun will discuss the reasons behind excessive vibration in centrifugal fans.
The vibration of the new ventilation fan is usually due to improper balancing of the impeller, insufficient rigidity of the support structure, or uneven base, leading to surge and vibration.
The reasons for the large vibration of the old fan include: corrosion of the impeller, wear of the impeller, accumulation of dust on the impeller, damage of the bearings, and problems with the coupling.
Large horizontal vibrations are usually caused by problems with the impeller.
If there are significant vertical vibrations, it usually indicates major issues with the foundation.
Large axial vibrations usually indicate significant issues with the bearings.
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