Two-dimensional floating mechanism used for pipeline detection

Abstract

The invention discloses a two-dimensional floating mechanism used for pipeline detection, and belongs to the technical field of pipeline leakage detection. The two-dimensional floating mechanism usedfor pipeline detection is capable of solving problems in the prior art that inner detectors are not suitable for large deformation pipeline detection, and the adaptivity and the trafficability characteristics are poor. The two-dimensional floating mechanism comprises supporting leather cups, a magnetic circuit module, and a center skeleton; the periphery of the center skeleton is sleeved by the magnetic circuit module; the magnetic circuit module is capable of performing two-dimensional floating with relative to the center skeleton; the magnetic circuit module is pressed against the internal walls of pipelines always; the magnetic circuit module is used for generating a magnetic field, and generating magnetic flux leakage signals of defect pipelines; the two ends of the center skeleton aresleeved by the support leather cups in a forward direction; the edges of the support leather cups are pressed against the internal walls of the pipelines always. The two-dimensional floating mechanism can be used for pipeline detection.

Description

technical field [0001] The invention relates to a pipeline leakage detection technology, in particular to a two-dimensional floating mechanism for pipeline detection which utilizes the magnetic flux leakage characteristics of the pipeline to detect its damage. Background technique [0002] With the gradual increase in the demand for resources such as submarine oil and natural gas, pipelines, as one of the most basic and economical energy transportation methods on the seabed, have received more and more attention to their safety. Caused by corrosion and defects in the metal of the wall. Therefore, in recent years, the demand and application of internal detectors in oil and natural gas transmission pipelines have become more and more extensive. [0003] Some current internal detectors have poor adaptability, and can only detect pipes with uniform inner diameter or small change in inner diameter, and cannot adapt to the detection of large-deformed pipes; Fault. Contents of ...

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Problems solved by technology

[0004] In view of the above problems, the present invention provides a two-dimensional floating mechanism for pipeline detection, which solves the problems in the prior art that the inner detector cannot adapt to the detection of large deformation pipelines, poor adaptability and passability

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