System and method for on-line detection and analysis of multi-channel vibration signals of rotating machinery

Abstract

The invention discloses a system and method for on-line detection and analysis of multi-channel vibration signals of rotating machinery, comprising a front-end data acquisition module and a remote analysis center, the front-end data acquisition module is connected to the remote analysis center through an Ethernet network; the front-end data acquisition module includes an acceleration Sensor, channel switching module, constant current power supply circuit module, signal conditioning circuit module, A / D conversion module, interface logic circuit module, microprocessor module, network interface module, speed signal detection module and relay module, with 16-channel polling 2. The function of collecting vibration signals in parallel with 2 channels and the collection function of 2 speed signals. The collected data can be transmitted to the remote analysis center through the network interface module connected with the microprocessor module through Ethernet, and the relay connected with the microprocessor module The module is used to connect the controlled peripherals; the remote analysis center includes a parameter configuration module, a data communication module, a data analysis module and a database maintenance module.

Description

technical field [0001] The invention belongs to the field of on-line detection and fault analysis of vibration signals of rotating machines, and in particular relates to a system and method for on-line detection and analysis of multi-channel vibration signals of remote distributed rotating machines. Background technique [0002] Rotating machinery (steam turbines, gas turbines, water turbines, generators, aero engines, centrifugal compressors and other mechanical equipment) is the key equipment in electric power, petrochemical, metallurgy, machinery, aviation and some military industries. Rotating machinery vibration monitoring technology is a technology to understand and master the status of these equipment during use, determine whether the whole or part of it is normal, find faults and their causes early, and predict the development trend of faults. Vibration signal analysis is an important part of state monitoring and fault diagnosis of rotating machinery. It is to improv...

AI Technical Summary

Problems solved by technology

[0004] In short, among the existing inventions, there is no one that can adapt to the field of vibration testing, use high-performance DSP to design front-end data collectors, and have high-resolution ADCs, compact structure, convenient combination, and 10M / 100M adaptive network Communication rate multi-channel vibration signal detection and analysis system and method

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