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Method and device for detecting vibration fault of centrifugal compressor

A centrifugal compressor and fault detection technology, which is applied in the field of compressors, can solve the problem of not being able to observe the continuous change of the rotor axis trajectory, and achieve the effect of improving detection efficiency

Active Publication Date: 2018-12-11
SHENYANG BLOWER WORKS GRP INSTALLATION MAINTENANCE FITTINGS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a vibration fault detection method and device for a centrifugal compressor, which solves the technical problem in the prior art that the continuous change of the rotor axis trajectory within a period of time cannot be observed

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  • Method and device for detecting vibration fault of centrifugal compressor
  • Method and device for detecting vibration fault of centrifugal compressor
  • Method and device for detecting vibration fault of centrifugal compressor

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 It is an application scene diagram of the embodiment of the present invention, the centrifugal compressor vibration fault detection system includes a bearing 110, a bearing housing 120, an eddy current sensor 130, and a centrifugal compressor vibration fault detection device 140, wherein the bearing 110 is a vibration mechanism to be detected, There are two eddy current sensors 130, which are respectively arranged on the same cross-section of the bearing 110 in directions perpendicular to each other, and can collect the displacement of the bearing in two directions perpendicular to each other in real time. In the embodiment of the present invention, a centrifugal compressor vibration fault detection method ...

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Abstract

The invention relates to the technical field of compressors, and discloses a method and device for detecting vibration faults of a centrifugal compressor. Through two eddy current sensors installed in the same cross-section at the bearing position of the centrifugal compressor and perpendicular to each other, synchronously collect vibration signals that are perpendicular to each other x (t) and y(t), obtain the vibration sequence of the preset time period, according to the vibration sequence of the preset time period, draw x(t) and y(t) synthesis in the X-Y-Z space according to the time sequence According to the axis trajectory in time series, the vibration fault of the centrifugal compressor is judged. The invention intuitively displays the variation of the axis track and improves the detection efficiency of vibration faults.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a vibration fault detection method and device for a centrifugal compressor. Background technique [0002] The rotor is the main part of the compressor. As an important state characteristic parameter of the rotating machinery, the axis trajectory can reflect the operation status of the equipment simply, intuitively and visually. It reflects the actual operation status of the rotor. The rotor axis trajectory is synthesized by the vibration signals of the same section of the rotor perpendicular to each other, which can vividly reflect the whirl situation of the shaft system at a certain moment. The limitation of this axis trajectory diagram is that it cannot reflect the axis trajectory within a period of time. Continuously changing conditions. [0003] In the prior art, a one-dimensional digital signal processing method is used to analyze and process the vibration signals in th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/06
Inventor 王胤龙薛宇飞韩磊郭九梅李慧峰潘敩李品威
Owner SHENYANG BLOWER WORKS GRP INSTALLATION MAINTENANCE FITTINGS