Computer technology based misalignment fault diagnosis device and method for shaft coupling of blower fan

Abstract

The invention provides a computer technology based misalignment fault diagnosis method for a shaft coupling of a blower fan. The method comprises the following steps of S101) data collection and preprocessing, S201) primary diagnosis, S301) secondary diagnosis and S401) final diagnosis; and the four steps are used to diagnose a misalignment fault of the shaft coupling of the blower fan. The invention also provides a computer technology based misalignment fault diagnosis device for the shaft coupling of the blower fan. The device comprises an encoder, a data collection module, a preprocessing module, a figure generation module, a fault diagnosis module and a device control module. The device and method can be used to diagnose the misalignment fault of the shaft coupling of the blower fan in real time; an algorithm is optimized, the misalignment fault of the shaft coupling of the blower fan is diagnosed in three levels, the efficiency and accuracy of fault diagnosis are improved, and a threshold is adjusted so that the method and device are suitable for different types of blower-fan coupling shafts.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis of rotating machinery, in particular to a device and method for fault diagnosis of fan shaft coupling misalignment based on computer technology. Background technique [0002] At present, wind energy, as a renewable energy source, is inexhaustible and has become an important part of the energy systems of countries all over the world. my country is rich in wind energy resources, and with the continuous development of wind power generation technology, the capacity of single wind turbines is also developing towards the MW level, and the overall installed capacity of wind power generators continues to increase year by year. However, due to the particularity of wind energy, wind turbines are mostly installed in areas rich in wind energy such as the Gobi, mountains, and islands. However, these areas have harsh climate conditions, large temperature differences between day and night, and the units ...

AI Technical Summary

Problems solved by technology

The alignment detection method of this coupling relies too much on the subjective judgment of the tester, and the test results are greatly affected by human factors. Precise alignment and therefore a high frequency of failures

Often after the installation is completed, the machine is turned on for inspection, and the alignment of the coupling is found to be unqualified, and the machine is shut down again for alignment. After alignment, it takes a lot of time to inspect the alignment of the coupling. Therefore, the existing alignment inspection method Cannot meet the alignment requirements of the coupling

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