Oil and gas pipeline axial deformation monitoring device and method

Abstract

The invention discloses a device and method for monitoring the axial deformation of an oil and gas pipeline. The device includes an axial and insulated super-long resistance wire fixed on the outer surface of the oil and gas pipeline, a track parallel to the super-long resistance wire, and a The walking trolley is equipped with a pair of conductive sheets, a current detection module, a stroke detection module, a data processing module, and a data storage and uploading module. On the moving path of the walking trolley, the conductive sheet is always in contact with the ultra-long resistance wire to form a loop, and the stroke detection The module can detect the stroke of the trolley, the current detection module can detect the loop current, and the data processing module can obtain the deformation of the resistance wire at the stroke position according to the stroke of the trolley and the loop current, that is, the axial deformation of the oil and gas pipeline at the stroke position , the data storage and uploading module is used to store the axial deformation of the oil and gas pipeline at each stroke position and upload it to the monitoring terminal. The invention can provide fast, efficient and economical real-time monitoring for the axial deformation of the oil and gas pipeline, and does not affect the normal operation of the oil and gas pipeline during use.

Description

technical field [0001] The invention belongs to the field of pipeline monitoring, and in particular relates to a device and method for monitoring the axial deformation of oil and gas pipelines. Background technique [0002] As a special equipment with many unsafe factors, oil and gas pipelines will cause serious safety accidents and environmental pollution when there are quality problems. Therefore, after the oil and gas pipeline is in normal operation, it is very important to monitor the deformation of the oil and gas pipeline. The existing oil and gas pipeline monitoring method is mainly to select individual measuring points on the surface of the oil and gas pipeline, and arrange strain gauges along the axial direction of the oil and gas pipeline at the measuring points, and monitor the deformation of the oil and gas pipeline by reading the signals of the strain gauges. Due to the harsh working environment of strain gauges, the cost per unit is high. In order to reduce th...

AI Technical Summary

Problems solved by technology

Due to the harsh working environment of strain gauges, the cost per unit is relatively high. In order to reduce the number of strain gauges and control costs, measuring points can only be selected in a small number of high-risk areas and arranged at intervals, but these areas are not necessarily oil and gas pipelines The real damage area, these measuring points are often not the final damage location of the oil and gas pipeline

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