State monitoring device provided with machine pump online energy efficiency evaluation function

Abstract

The invention provides a state monitoring device provided with a provided with machine pump online energy efficiency evaluation function. An energy efficiency module is arranged in a CMS acquisition host machine; after sensor data is acquired and energy efficiency is analyzed, real-time energy efficiency analysis results are sent to a software system; after performing HILBERT transform, rotation speed order analysis and FFT analysis on a filtered signal, a fault diagnosis module extracts energy amplitude which corresponds to each anomalous characteristic ratio, compares energy percentage of each anomalous characteristic point with a threshold value, and performs fault alarm while each anomalous characteristic point exceeds the threshold value. The state monitoring device calculates energyconsumption and an efficiency state of a motor, a water pump and a unit in real time through an energy efficiency analysis module of the state monitoring device, so that energy consumption analysis data and fault diagnosis data are provided on line in real time.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of machines and pumps, in particular to a state monitoring device with functions of online energy efficiency evaluation and fault diagnosis of machines and pumps. Background technique [0002] Motor current, voltage, bearing vibration, temperature, efficiency and pump vibration, shaft swing, speed and steering, flow, pressure, efficiency, etc. are important parameters that reflect the current operating status of the pump system. The health of the crew will be characterized by the above signals. Through the energy efficiency evaluation, status monitoring and fault analysis of the key equipment and components of the pump in operation, it is possible to give an early warning of the abnormality of the monitored equipment, preliminarily determine the cause of the abnormality of the equipment, and carry out pre-prevention and predictive maintenance to ensure the safety of the unit. , reliabl...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a condition monitoring device with the functions of on-line energy efficiency evaluation and fault diagnosis of the machine pump, so as to solve the problem that the current traditional machine pump condition monitoring system cannot obtain the parameter states such as flow rate, shafting torque and power, and cannot perform real-time energy efficiency evaluation. and troubleshooting technical issues

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