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Pipeline deformation internal detection method and device based on magnetization technology

A detection method and pipeline technology, applied in electromagnetic measurement devices, electric/magnetic solid deformation measurement, etc., can solve the problems of inaccurate detection results, and achieve the effect of solving inaccurate results, high accuracy and high precision

Pending Publication Date: 2021-10-15
CHINA SPECIAL EQUIP INSPECTION & RES INST +1
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Problems solved by technology

[0004] The main purpose of this application is to provide a method and device for detection of pipeline deformation based on magnetization technology to solve the problem of inaccurate detection results in the prior art

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  • Pipeline deformation internal detection method and device based on magnetization technology
  • Pipeline deformation internal detection method and device based on magnetization technology
  • Pipeline deformation internal detection method and device based on magnetization technology

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0031]In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0032] As mentioned in the background technology, the bouncin...

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Abstract

The invention provides a pipeline deformation internal detection method and device based on a magnetization technology. The method comprises the steps: obtaining composite magnetic field information, wherein the composite magnetic field information is information of a composite magnetic field, the composite magnetic field is the vector sum of a magnetic field generated by a magnetic field generator and a magnetic field generated after the inner surface of a target pipeline is magnetized by the magnetic field generated by the magnetic field generator, and the magnetic field generator is located in the target pipeline; determining a deformed area and an undeformed area in the target pipeline according to the composite magnetic field information; and determining the deformation amount and the deformation inclination angle in the deformation area. According to the scheme, a contact type detection probe is not involved, the phenomena of serious abrasion, scratching of the inner wall of the pipeline and bouncing when the detection probe is far away from the defect area are avoided, it is guaranteed that the accuracy of the detection result of the pipeline deformation is high, and the problem that in the prior art, the detection result is inaccurate is solved.

Description

technical field [0001] The present application relates to the field of pipeline deformation detection, in particular, to a method and device for internal detection of pipeline deformation based on magnetization technology. Background technique [0002] At present, the deformation detection technologies widely used in oil and gas pipelines mainly include: contact deformation detection technology and non-contact deformation detection technology. Contact deformation detection relies on the mechanical arm to make the detection probe close to the inner wall of the pipeline under the action of spring preload Fitting, the deflection angle of the mechanical arm is recorded by the magnetic rotary encoder to determine the deformation information of the pipeline, but related research shows that when the probe is far away from the defect area, problems such as severe wear of the probe and scratches on the inner wall of the pipeline may occur. Multiple bounces lead to data drift and data...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/24
CPCG01B7/24
Inventor 陈金忠辛佳兴李春雨李晓龙王长新朱宏武何仁洋
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST
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