Fault diagnosis and prediction system for nuclear power gear box vibration and oil online monitoring

Abstract

The invention relates to a fault diagnosis and prediction system for nuclear power gear box vibration and oil online monitoring. The system comprises an oil automatic circulation module, a data acquisition module, a data storage module, a data transmission module and an online monitoring module. The oil liquid automatic circulation module is connected with the oil liquid data acquisition module; the oil data acquisition module and the vibration data acquisition module are connected with the data storage module; and the data transmission module is respectively connected with the data storage module and the data processing module. According to the invention, real-time and continuous monitoring of the working state of the nuclear power gear box can be realized, and the monitoring and analysis result is synchronous with the operation state of the nuclear power gear box; according to the invention, not only can the vibration state of the nuclear power gear box be detected, but also the physical and chemical characteristic information of the lubricating oil in use and the carried wear characteristic information can be detected; according to the invention, fault early warning can be carried out on the operation state of the nuclear power gearbox, the fault part and the fault reason are determined, the wear development trend is predicted, and possible faults are predicted in advance.

Description

technical field [0001] The invention relates to the technical field of state monitoring of a nuclear power gearbox, in particular to a fault diagnosis and prediction system for on-line monitoring of vibration and oil of a nuclear power gearbox. Background technique [0002] The nuclear power gearbox is used in the circulating water system of the nuclear power plant unit, and is a key device to provide circulating cooling water to the conventional island and the nuclear island. Nuclear power gearboxes belong to the ultra-high precision manufacturing field with high precision. In the actual operation process, once the nuclear power gearbox fails, it will affect the operation of the entire nuclear power plant unit. If the failure is not warned in advance, it will bring serious safety hazards to the nuclear power plant and cause very significant economic losses. Therefore, it is necessary to carry out on-line condition monitoring of nuclear power gearboxes, find out the signs o...

AI Technical Summary

Problems solved by technology

And most of the detection of lubricating oil is to use a single sensor to collect a certain performance index of the lubricating oil, which cannot complete the multi-information collection and data fusion analysis of the lubricating oil, cannot realize the cause and type of failure, and cannot fully reflect the operating status of the equipment

The design of the traditional gearbox monitoring system does not consider the seismic performance in the selection and layout of its equipment, which does not meet the safety design requirements of nuclear power gearboxes

And the staff can only check the working status of the gearbox on the equipment at a specific location, and cannot obtain the real-time status information of the gearbox anytime and anywhere, which is not conducive to the technicians' real-time grasp of the operating status of the gearbox

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