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Deformation interior detector for big deformation

An internal detector and large deformation technology, which is applied in the direction of instruments, measuring devices, surveying and navigation, etc., can solve the problems of low detection accuracy and inability to perform mileage correction of deformed internal detectors, and achieve good passability and deformation adaptability, The effect of reducing the risk of jamming and high detection accuracy and accuracy

Inactive Publication Date: 2018-06-19
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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  • Abstract
  • Description
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Problems solved by technology

[0005] In view of the above problems, the present invention provides a large-deformation internal detector, which solves the problems of low detection accuracy and inability to perform mileage correction of the deformation internal detector in the prior art

Method used

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  • Deformation interior detector for big deformation
  • Deformation interior detector for big deformation
  • Deformation interior detector for big deformation

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Embodiment 1

[0035] This embodiment provides a large-deformation in-deformation detector, such as Figure 1 to Figure 9 As shown, it includes an anti-collision power supply mechanism 1, a deformation measurement mechanism 2, and an attitude mileage measurement mechanism 3 that are sequentially connected in rotation. The deformation measurement mechanism 2 includes a central frame 201, an angle sensor 202, a data recording unit 203, and a plurality of The swing arm inductors 204 distributed in the circumferential direction are rotationally connected with the central framework 201, and the ends of the swing arm inductors 204 are always in contact with the inner wall of the pipeline. Among them, the anti-collision power supply mechanism 1 is used to supply power to the angle sensor 202, the data recording unit 203, and the attitude mileage measurement mechanism 3; the angle sensor 202 is used to convert the swing arm displacement collected by the swing arm sensor 204 into angle data, and trans...

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Abstract

The invention discloses a deformation interior detector for big deformation, belongs to the technical field of pipe interior detectors, and solves problems that a deformation interior detector in theprior art is low in detection precision and cannot correct the mileage. The detector comprises an anti-collision power supply mechanism, a deformation measurement mechanism and a posture mileage measurement mechanism, wherein the anti-collision power supply mechanism, the deformation measurement mechanism and the posture mileage measurement mechanism are sequentially connected in a rotating manner. The deformation measurement mechanism comprises a central skeleton, an angle sensor, a data recording unit, and a plurality of swinging arm inductors which are distributed in the peripheral direction of the central skeleton. The swinging arm inductors are in rotating connection with the central skeleton, and the end parts of the swinging arm inductors make contact with the inner wall of a pipe.The detector provided by the invention can be used for detecting the deformation of the inner wall of the pipe.

Description

technical field [0001] The invention relates to an in-pipeline detector, in particular to a deformable in-pipe detector for large deformation of a fluid conveying pipeline. Background technique [0002] The safety assessment and maintenance of in-service oil and gas pipelines are the key to the integrity management of oil and gas pipelines. In the actual pipeline inspection application, in order to ensure that the oil and gas pipeline defect detector can pass through the pipeline smoothly, it is necessary to perform deformation detection on the pipeline before defect detection. [0003] In the prior art, the sensors of the deformed inner detector are usually distributed along the circumferential direction of the inner detector, however, due to the small number of sensors, the detection accuracy of the pipeline deformation is low. [0004] In addition, the existing deformation inner detector cannot correct the mileage of the inner detector, which makes the running mileage of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/32G01C23/00
CPCG01B21/32G01C23/00
Inventor 贾兴豪张广宇董志江刘志李志华徐婷时凯飞郑莉熊鑫刘彤卫丽君袁增辉任环高猛
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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