Ultrasonic wall thickness on-line monitoring device for oil and gas pipeline

Abstract

The invention relates to an ultrasonic wall thickness on-line monitoring device for an oil and gas pipeline, which comprises a probe structure for on-line monitoring of the wall thickness of the oil and gas pipeline and comprising an ultrasonic probe which can be telescopically connected to a probe bracket along the radial direction of the pipeline; a guide structure, comprising a circumferential guide rail structure and an axial guide rail structure, the circumferential guide rail structure comprising a first guide rail, and the probe support can rotate in the circumferential direction of the first guide rail to change the circumferential position of the ultrasonic probe; the axial guide rail structure comprising a second guide rail, the second guide rail is axially arranged along the pipeline, and the circumferential guide rail structure can move along the second guide rail to change the axial position of the ultrasonic probe; a control part, used for receiving and transmitting ultrasonic signals, receiving and processing monitoring data of the ultrasonic probe and electrically controlling the probe structure and the guide structure, and the probe structure and the guide structure being electrically connected with the control part. The device has multi-point monitoring capability, axial full-pipe-length monitoring capability and circumferential 360-degree monitoring capability, and can realize on-line monitoring of variable-pipe-diameter wall thickness.

Description

technical field [0001] The invention relates to the technical field of ultrasonic monitoring in the petroleum and petrochemical industry, in particular to an ultrasonic wall thickness online monitoring device for oil and gas pipelines. Background technique [0002] The petroleum and petrochemical industry has a large number of oil and gas pipelines, widely distributed, various corrosion factors, and complex laying environment. With the increase of the service life, there are greater risks and hidden dangers. Especially in recent years, oil and gas pipelines have been affected by third-party damage and natural geological disasters, which have caused serious losses and potentially huge damage to the safe and stable operation of pipelines. Therefore, it is necessary to monitor the wall thickness reduction status of oil and gas pipelines in key areas. [0003] The existing ultrasonic thickness measurement system generally uses brackets and clamps to arrange multiple ultrasonic ...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing disclosed ultrasonic thickness measurement equipment can only perform fixed-point thickness measurement, and the scanning range is limited to the fixed position of each ultrasonic probe, which cannot realize continuous and dead-angle-free pipe wall thickness scanning

For areas that cannot be scanned, manual on-site ultrasonic scanning is required to supplement, resulting in large time and labor costs

A few published ultrasonic thickness measuring equipment can realize the non-dead angle scanning in the circumferential direction of the pipeline, but cannot realize the long-distance continuous scanning in the axial direction of the pipeline

Images