Pipeline internal detection experiment platform

Abstract

The invention discloses a pipeline interior detection experiment platform. The pipeline interior detection experiment platform comprises a magnetisable experiment loop provided with various different types of defects and receiving and sending ball cylinders connected to the two ends of the experiment loop, and a pressure pump and a medium groove used for storing a medium are arranged between the two receiving and sending ball cylinders; control valves are arranged between the medium groove and the receiving and sending ball cylinders, between the receiving and sending ball cylinders and the experiment loop and between the receiving and sending ball cylinders and the pressure pump; the experiment loop is provided with pressure gauges and a magnetic field intensity measuring instrument, and the pressure gauges are arranged at the two ends of the experiment loop; and an infrasound sensor and a magnetostrictive sensor are arranged in the experiment loop to collect sound signals of pipeline leakage or seepage, an optical fiber signal measuring instrument used for collecting optical fiber signals of pipeline leakage or seepage is arranged outside the experiment loop, and a noise filter and an optical signal regulator are arranged between the outer wall surface of the experiment loop and the optical fiber signal measuring instrument. Therefore, sound wave signals and optical fiber signals caused by pipeline defects can be collected at the same time, and then optical fiber magnetostriction and sound wave experiments can be carried out.

Description

Technical field [0001] The present invention relates to the field of pipeline defect detection, and more particularly to a conduit detection experiment platform. Background technique [0002] Pipe leakage detection techniques are widely used in detection and quantitative analysis of oil and gas pipeline defects due to their high sensitivity, high reliability, simple operation, non-polluting environment and magistrate defects. [0003] The existing drain detector is mainly detected for metal loss defects, and the material loss of the leakage position cannot be effectively detected, and it is difficult to find a needle-eye, crack type micro-leak or leakage. Therefore, a single leak-magnetic internal detection technique has a problem that the old complex helical weld defect detection is not high, and the defect is quantified. [0004] The acoustic detection technology can solve the needle type, crack type microak or leakage, but there is no corresponding experimental platform in Chi...

AI Technical Summary

Problems solved by technology

[0003] Existing magnetic flux leakage detectors mainly detect metal loss defects, and cannot effectively detect material loss at the leakage position, and it is difficult to find pinhole-type, crack-type micro-leakage or leakage on the pipeline

Therefore, the single internal magnetic flux leakage detection technology has the problems of low detection accuracy and inaccurate defect quantification of old and complex spiral weld defects

[0004] Acoustic-based detection technology can well solve pinhole-type and crack-type microleakage or leakage, but there is currently no corresponding experimental platform in China to carry out relevant experimental research

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