Method for judging and treating signal failure of generator set vibration sensor

Abstract

The invention relates to a method for judging and treating a signal failure of a generator set vibration sensor. The method comprises the steps that 1, whether a signal is abnormal or not is judged through a vibration amplitude, and the signal is processed in two conditions, namely, the shutdown or turning state and the acceleration and deceleration process or the running process of 3,000 rpm; 2, after it is judged that the vibration signal has a failure, a failure reason is obtained according to the characteristic of the failure, treatment and checking are carried out on the failure according to the failure reason, and the failure is processed in two conditions, namely, the shutdown or turning state and the acceleration and deceleration process or the running process of 3,000 rpm. The method is clear in thought, easy and convenient to operate and high in practicality, failure treatment time is shortened, reliability of vibration monitoring work is improved, the vibration failure diagnosis and treatment capacity is enhanced, and the safety guarantee of unit running is improved.

Description

technical field [0001] The invention belongs to the technical field of signal fault inspection of a vibration monitoring system of a rotating machine, in particular to a method for judging and processing a signal fault of a vibration sensor of a generating set. Background technique [0002] When vibration faults occur in rotating equipment such as turbogenerators, fans, and water pumps, it is necessary to carry out fault diagnosis and analysis. These rotating equipment also need to start and stop Bode diagram surveying and mapping as important technical archives after they have just been put into production or have undergone major repairs. All these work All must be realized with the help of a temporary rotating machinery vibration fault diagnosis and analysis system. The vibration diagnosis subsystem consists of a data acquisition analyzer and several sensors. The most commonly used sensor is the speed vibration sensor, which relies on a strong magnetic base to be firmly a...

AI Technical Summary

Problems solved by technology

In actual work, due to the harsh environmental conditions of the production site and the development of various maintenance and construction work, the damage of the wire, the grounding of the conversion head, the movement of the sensor and other faults often cause signal distortion, which has a great impact on the normal development of vibration monitoring.

However, due to the variability and instability of vibration data, some signals are not easy to be found even if there is a fault.

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