Abstract

Shraddha Soni, Sharda Pratap Shrivas

ABSTRACT

Centrifugal pumps are widely used in a variety of applications. In many applications the role of the centrifugal pump is critical and condition monitoring is essential. Cavitation within the pump can cause undesirable effects, such as damage of the impeller by pitting and erosion and deterioration of the hydraulic performance. Cavitation can appear within the entire range of operating conditions, therefore it must, by all means, be prevented. To prevent cavitation in a pump it has to know the beginning and development of the cavitation in the pump. For this purpose, the vibration and noise must be kept within certain limits. If the mechanical state of the pump and its drive are good, the inflow conditions are in order and the duty point is admissible, these limits can be observed without difficulty. Higher vibrations ultimately result in decreased component life due to Pitting in the impeller, cyclic loads, bearing failure, distortion to foundation etc. Vibration spectrum analysis technique is a most effective approach to maintain the safe and reliable operation of centrifugal pumps.