Fault Diagnosis And Flow Induced Vibration In Submerged Vertical Pumps In A Power Plant

Mirfaizal , Chuchu (2007) Fault Diagnosis And Flow Induced Vibration In Submerged Vertical Pumps In A Power Plant. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Experimental studies were undertaken to investigate the fault diagnosis and flow induced vibration in submerged vertical pumps in the power plant in Melaka. The effect from the failure of the submerged vertical pump would potentially result in a total plant shutdown. It is important to identify the related problems so that the condition monitoring and prediction can be done for machinery fault diagnosis and improvement by using vibration analysis as an indicator. Therefore the problems finding and failure symptoms from the prediction and analysis of this investigation are used to improve and increase the efficiency and make use of the pumps Life time as longer as possible. Besides that, the thesis was also carry out a study and applies vibration technology for predictive condition monitoring for most likely faults in industrial environment. The investigation started from undertaken the vibration measurement and analyzed the vibration spectrum. A continuous condition monitoring was develop by detail analysis of monthly statistical overall alarm obviously to obtain a trend of overall vibration characteristic that can warn of impending trouble of the pump in early stages. Based on the vibration measurement, spectrums analysis, statistical overall alarm and the standard of assign vibration monitoring result, the investigation and analysis clearly implied that an impeller design error and high vibration in the CWPl compare to the CWP2 because of the impeller failure and the existence of cavitation was suspected at CWPl. The pump impeller design that supplied by the pump manufacturer also unmatched the pump needed for the plant.

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