Title:
DETECTION DEVICE AND METHOD FOR PIPELINE WELD DEFECTS
Document Type and Number:
WIPO Patent Application WO/2024/078154
Kind Code:
A1
Abstract:
Disclosed in the present invention is a detection device for pipeline weld defects. The detection device comprises a controller, a plurality of odometer wheel assemblies, and a magnetic flux leakage detection section moving in the axial direction of a pipeline. The magnetic flux leakage detection section is used for collecting a magnetic flux leakage signal of the inner peripheral wall of the pipeline; each odometer wheel assembly is used for acquiring odometer data when the magnetic flux leakage detection section moves in the axial direction of the pipeline; and the controller is used for: acquiring the magnetic flux leakage signal collected by the magnetic flux leakage detection section; according to the magnetic flux leakage signal, determining whether there is a pipeline weld defect; and when it is determined that there is a pipeline weld defect, positioning the defect according to the odometer data collected by each odometer wheel assembly. When a pipeline defect is positioned, odometer data collected by a plurality of odometer wheel assemblies is considered, such that the situation that slipping possibly occurs due to odometer measurement by using a single odometer wheel and other situations in the prior art are avoided, and the accuracy of weld defect positioning can be improved.
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Inventors:
CHEN PENGCHAO (CN)
FU KUAN (CN)
LI RUI (CN)
JIA GUANGMING (CN)
ZHENG JIANFENG (CN)
QIU HONGHUI (CN)
WANG FUXIANG (CN)
XUAN WENBO (CN)
LEI ZHENGQIANG (CN)
YANG HUI (CN)
FU KUAN (CN)
LI RUI (CN)
JIA GUANGMING (CN)
ZHENG JIANFENG (CN)
QIU HONGHUI (CN)
WANG FUXIANG (CN)
XUAN WENBO (CN)
LEI ZHENGQIANG (CN)
YANG HUI (CN)
Application Number:
PCT/CN2023/114821
Publication Date:
April 18, 2024
Filing Date:
August 25, 2023
Export Citation:
Assignee:
CHINA OIL & GAS PIPELINE NETWORK CORP (CN)
International Classes:
G01N27/90
Attorney, Agent or Firm:
KEYCOM PARTNERS , P.C. (CN)
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