Outer magnetic flux leakage detection device for industrial pipeline in use

Abstract

The invention discloses an outer magnetic flux leakage detection device for an industrial pipeline in use. The outer magnetic flux leakage detection device for the industrial pipeline in use comprises a crawling unit, a magnetic flux leakage detection unit, a far-end signal processing and control unit and a local control unit. The crawling unit comprises a driving module and a driven module, wherein the driving module and the driven module are connected through a magnetization module, and power transmission between the driving module and the driven module is achieved through chain transmission; the magnetic flux leakage detection unit is connected with the crawling unit through an adjusting plate; the far-end signal processing and control unit comprises a signal preprocessing module, a first wireless module and a second wireless module, and the far-end signal processing and control unit and the crawling unit are connected together through a handle; the local control unit comprises a wireless router module and a remote control module, and double-path control is formed by the local control unit and the far-end signal processing and control unit. The outer magnetic flux leakage detection device for the industrial pipeline in use can well adapt to industrial site conditions, have the advantages of being free of framework erection, convenient to control, high in detection efficiency and the like, and is especially applicable to high-accuracy detection for the industrial pipeline in use.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic non-destructive testing, and more specifically relates to an external magnetic leakage detection device suitable for in-use industrial pipelines. Background technique [0002] Industrial pipelines are often in harsh working environments, and are easily affected by various factors such as conveying medium, temperature and stress during long-term operation, and produce defects such as corrosion and material degradation; pipeline leakage or explosion accidents caused by this will give Enterprises have brought serious economic losses and caused extremely bad environmental pollution. Therefore, it is necessary to regularly inspect and maintain industrial pipelines. [0003] Compared with other conventional pipeline detection methods, magnetic flux leakage detection method is fast, has strong penetrating power, is not affected by oil and water, and has high sensitivity to internal defects of pi...

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Problems solved by technology

[0004] However, further studies have shown that the above-mentioned prior art still has the following defects or deficiencies: firstly, the existing magnetic leakage detection devices all adopt the wired signal transmission mode, but the direction of the pipeline in the industrial field is very complicated, resulting in inconvenient use Even the problem that it cannot be detected; secondly, although it can walk on the surface of the pipeline to be tested, the probe cannot be adjusted flexibly, which limits the detection accuracy and applicability; thirdly, the overall structure of the existing detection device is complex, It is bulky, and it is necessary to further optimize its overall structural layout

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