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Finger probe unit of floating magnetic flux leakage detection device in pipeline

A magnetic flux leakage detection, floating technology, applied in the direction of material magnetic variables, etc., to achieve the effect of multiple functions and convenient installation

Active Publication Date: 2016-05-18
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing magnetic flux leakage detection probe units are in the form of vertical hinges. The hinge swing arm of the probe is relatively long, and the probe installation position is relatively high. The mandrel type magnetic flux leakage detector in the pipeline is more suitable, but it is installed on the floating block of the floating magnetic flux leakage detection device in the pipeline. Due to the limited height of the magnetic pole on the floating block, the installation position of the probe is often higher than the height of the magnetic pole. This probe structure Not suitable for application on the floating block of the floating magnetic flux leakage detection device in the pipeline

Method used

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  • Finger probe unit of floating magnetic flux leakage detection device in pipeline
  • Finger probe unit of floating magnetic flux leakage detection device in pipeline
  • Finger probe unit of floating magnetic flux leakage detection device in pipeline

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] refer to figure 1 , figure 2 and image 3 , The finger probe unit of the floating magnetic flux leakage detection device in the pipeline is composed of three parts: a fixed element, a movable element and an elastic element.

[0021] The fixing element is like the palm of a human hand, including an arc-shaped lower twisted support 6 and an upper cover plate 4 of the twisted support. The middle finger steering joint block 10 is screwed on the lower twisted support 6 through the hexagon socket head cap screw 9, and the lateral finger steering joint block 7 passes through The pin shaft 3 is connected with the lower twisting support 6, and the threaded block 12 of the end face locking pin shaft is connected on the upper cover plate 4 of the twisting support, and the upper cover plate 4 of the twisting support is tightened on the lower twisting su...

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Abstract

The invention discloses a finger probe unit of a magnetic flux leakage detection device in a floating pipeline. The finger probe unit comprises three parts, namely a fixed element, a movable element and an elastic element, wherein the fixed element is like a palm of a hand; the movable element is like a finger of the hand; the elastic element is like a ligament and muscle of the hand. By adopting finger joints of imitating the hand, a detection probe is fabricated into a mechanical finger structure. Thus, the problems of probe design and installation of the magnetic flux leakage detection device in the floating pipeline are well solved.

Description

technical field [0001] The invention relates to the technical field of a magnetic flux leakage detection device for oil and gas pipelines, in particular to a finger probe unit of a floating magnetic leakage detection device in a pipeline. Background technique [0002] Oil and gas pipelines will have defects during use, so it is very important to ensure the safety of oil and gas pipelines. Among the commonly used internal defect detection devices for oil and gas pipelines, the floating magnetic flux leakage detection device in pipelines has higher passing capacity and adaptability to pipeline deformation, and has better comprehensive performance. The distance between the magnetic poles on the floating block of the floating magnetic flux leakage detection device in the pipeline and the installation height of the probe are limited, so a corresponding magnetic flux leakage detection probe unit is required. Most of the existing magnetic flux leakage detection probe units are in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/83
Inventor 黄松岭赵伟程若凡宋明晓
Owner TSINGHUA UNIV
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