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Fan vibration fault diagnosis method and device based on vibration characteristic values

A fault diagnosis and eigenvalue technology, applied to the components of pumping devices for elastic fluids, pump devices, machines/engines, etc. The effect of saving diagnosis time and cost and solving the problem of fan vibration failure

Active Publication Date: 2021-10-08
ZHONGDIAN HUACHUANG ELECTRIC POWER TECH RES +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the untimely handling of the problem, the whole plant may be shut down due to fan vibration failure, so there is an urgent need for a method that can diagnose fan vibration in a timely and accurate manner based on the signal characteristics of abnormal vibration

Method used

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  • Fan vibration fault diagnosis method and device based on vibration characteristic values

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Embodiment Construction

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific examples. The present embodiment is implemented in terms of the technical solution of the present invention, and a detailed embodiment and a specific operation process are given, but the scope of the invention is not limited to the following examples.

[0036] A fan vibration fault diagnosis method based on vibration feature values, the method is implemented by a computer system in the form of a computer program, which requires mounting vibration sensors on a fan and motor, in a small system, can be mounted on a coupling bearing On the large system, the vibration signal collected by the sensor is used as the input data source.

[0037] Specifically, such as figure 1 The implementation of the method includes the following steps:

[0038] 1) Get the vibration information of the fan and its drive motor;

[0039] 2) When a measurement point vibration is greater than ...

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Abstract

The invention relates to a fan vibration fault diagnosis method and device based on vibration characteristic values. The fan vibration fault diagnosis method based on the vibration characteristic values comprises the steps that the vibration amplitude and phase of the horizontal direction, the vertical direction and the axial direction of the free end of a fan, the vibration amplitude and phase of the horizontal direction, the vertical direction and the axial direction of the driving end of a motor, and the vibration amplitude and phase of the horizontal direction, the vertical direction and the axial direction of a bearing box at the end of the fan are judged, classification and recognition are conducted according to the vibration signal characteristics of the fan, and finally the fault reason of vibration is determined. Compared with the prior art, the type of the fan vibration fault can be accurately and rapidly judged according to the characteristics of abnormal signals of fan vibration.

Description

Technical field [0001] The present invention relates to the field of fan fault diagnosis, and more particularly to a fan vibration fault diagnosis method and apparatus based on a vibration feature value. Background technique [0002] Fan is a common auxiliary equipment in the fields of energy chemical. The most prone to failure of such equipment is vibration, and the vibration failure has a variety of types, and the fan vibration fault has a serious impact on the security and economy of users. [0003] At present, for the abnormal problem of fan vibration, it is necessary to solve it by professional vibration experts. Once vibration exception occurs, the fan is needed to contact the vibration expert to analyze and process. Due to the timelessness of the problem, it may cause the full plant power failure due to the fan vibration failure, therefore, there is an urgent need for a method of diagnosing the fan vibration according to the signal characteristics of abnormal vibration, ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D27/00F04D27/02F04D29/00
CPCF04D25/08F04D27/001F04D27/02F04D29/002
Inventor 徐威王乃斌李国庆李嘉钦许文彦王亚顺
Owner ZHONGDIAN HUACHUANG ELECTRIC POWER TECH RES