Abstract: In view of the vibration failure of centrifugal pump, the vibration analysis and countermeasures of centrifugal pump were carried out. Combining with the characteristics of spectrum diagnosis and equipment structure, from the state of bearing, coupling, piping stress, in parts inspection and axial force balancing of the centrifugal pump vibration fault screening analysis, identify the cause of the centrifugal pump vibration levels, and through the driving part of structure optimization, make the pump vibration never allowed the state to good state, eliminate the equipment running hidden dangers.

Key words:  , vibration；bearing；coupling；axial force