Condition Monitoring and Vibration Analysis of Boiler Feed Pump

Condition Monitoring is an advanced and very useful tool of predictive maintenance techniques. It has made good progress in recent years in identifying many types of deterioration in plant machinery, so that pro-active maintenance can be performed, improving overall plant productivity. There is a wide variety of condition monitoring techniques currently in use for the diagnosis and prediction of machinery faults, but little attention has been paid to the occurrence and detection of vibration analysis of rotating equipments The application of computers and electronic measuring and detecting system has provided a new improvement for condition monitoring and has a particular relevance for plant engineers in utilities and service departments. It eliminates unnecessary opening of equipment with considerable savings in personnel resources. This paper aims at the implementation of condition based maintenance on BOILER FEED pump critical Machine used in the thermal plant, by adopting Vibration spectrum analysis which is a predictive maintenance technology. For the BOILER FEED pump the vibration readings show that values are more than normal readings. Spectrum analysis was done on readings and found that mass unbalance in vanes. It was corrected based on phase analysis and vibration readings were observed after modification which gives the values with in normal range. It eliminates unnecessary opening of equipment with considerable savings in personnel resources. Nomenclature BFP : Boiler Feed Pump MNDE : Motor Non Driving End MDE : Motor Driving End FDE : Fan Driving End FNDE : Fan Non Driving End PDE : Pump Driving End PNDE : Pump Non Driving End BPNDE : Booster Pump Non Driving End BPDE : Booster Pump Driving End MMDE : Main Motor Driving End