Method for condition monitoring system for centrifugal pump using vibration analysis

摘要

This system proposes a method to continuously monitor the pump condition using an accelerometer. Centrifugal pumps play very important role in many industrial applications. Due to its importance and wide spread applications in industries, fault diagnosis of the pump will be very crucial. System is capable of detecting faults in pumps impeller, bearing and displaying whether pump is in good condition or not. The current system consists of accelerometer and an embedded system with a display. Accelerometer measures the vibrations from the pump. The system can distinguish three different pump conditions -pump under normal condition, pump with inner race fault, pump with outer race fault. The system uses an 8-bit microcontroller to sample data acquired from accelerometer and either transfer the data points to computer via communication interface or determine the pump condition based on vibration signals. The system uses ADC interfaced with analog input port of microcontroller to accurately acquire and measure vibration signal. After further processing the system indicates the result on an LCD display fitted on the dashboard.