Pipeline defect detection device and data analysis method
A defect detection and pipeline technology, applied in measuring devices, analyzing materials, analyzing solids using sonic/ultrasonic/infrasonic waves, etc., can solve the problems of reducing the accuracy of detection data analysis, close contact of the pipeline wall, and inability to obtain pipeline deformation information, etc. Achieve the effect of being conducive to accurate quantitative identification and improving detection accuracy
Active Publication Date: 2016-07-27
CHINA PETROCHEMICAL CORP +3
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Problems solved by technology
At present, the defect detection of oil and gas pipelines is mostly carried out by magnetic flux leakage detectors or ultrasonic detectors, but the deformation information in the pipeline cannot be obtained, and it is necessary to use the deformation detector for one-pass internal deformation detection; Due to the influence of internal deformation, the defect sensor cannot always be in close contact with the pipe wall. When there is a gap between the defect sensor and the pipe wall, the measured value needs to be corrected, otherwise the accuracy of the detection data analysis will be greatly reduced
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[0015] Now in conjunction with the accompanying drawings of the description, the present invention will be further described:
[0016] Refer to attached figure 1 and 2 , The pipeline defect detection device includes a main body 1, a support 2, an angular displacement sensor 3, a distance measuring sensor 4, a probe rod 5, a leaf spring 6, a defect sensor 7, a mileage module 8 and a data acquisition, storage and transmission module. One end of the probe rod 5 is fixedly connected to the defect sensor 7, and the other end is connected to the angular displacement sensor 3. At the same time, the sensing head of the angular displacement sensor 3 is fixed to the support 2, and the distance measuring sensor 4 is installed on the upper part of the support 2. The pipeline defect detection device is evenly arranged in multiple groups of supports 2, angular displacement sensors 3, distance measuring sensors 4, probe rods 5, leaf springs 6, and defect sensors 7 in the circumferential dir...
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The invention relates to a pipeline defect detection device and data analysis method, which are used for the nondestructive detection of an oil-gas pipeline. The pipeline defect detection device mainly comprises a main body 1, supporting seats 2, angular displacement sensors 3, distance measuring sensors 4, probe rods 5, leaf springs 6, defect sensors 7, a mileage module 8 and a data collection storage transmission module, wherein a plurality of supporting seats 2, angular displacement sensors 3, distance measuring sensors 4, probe rods 5, leaf springs 6 and defect sensors 7 are uniformly arranged on the periphery of a central axis of the main body 1; and one end of each probe rod 5 is fixedly connected to the corresponding defect sensor 7, and the other end of each probe rod 5 is hinged to the corresponding supporting seat 2. By adopting the pipeline defect detection device data analysis method, deformation and defects in the pipeline can be simultaneously detected; moreover, a gap between a probe and the inner wall of the pipeline can be calculated, a defect detection value can be corrected, the accurate recognition of detection data can be facilitated, and the overall detection precision can be improved.
Description
technical field [0001] The invention relates to a pipeline defect detection device and a data analysis method, which are applied to the nondestructive detection of oil and gas pipelines. technical background [0002] Oil and gas pipelines are subject to internal medium corrosion, external environmental factors, and human factors during operation, and are prone to defects or damages such as deformation and corrosion. It is necessary to regularly inspect the pipelines to detect these defects in time to prevent oil and gas leakage. At present, the defect detection of oil and gas pipelines is mostly carried out by magnetic flux leakage detectors or ultrasonic detectors, but the deformation information in the pipeline cannot be obtained, and it is necessary to use the deformation detector for one-pass internal deformation detection; Due to the influence of internal deformation, the defect sensor cannot always be in close contact with the pipe wall. When there is a gap between the...
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IPC IPC(8): G01N29/04G01N29/30G01N27/83
Inventor 王宏安张士华孙永泰史永晋初新杰田海庆田凯高慧傅忠尧崔希君
Owner CHINA PETROCHEMICAL CORP