An Electromagnetic Detection System for Pipeline Internal Detection

Abstract

The invention discloses an electromagnetic detection system and method for pipeline internal detection. The electromagnetic detection system for the pipeline internal detection comprise an energy-power section, a battery section, a central control section, electromagnetic turbulence detection sections, traveling wheels, hollow hinges and an anti-collision head, wherein the energy-power section, the central control section and the plurality of sets of electromagnetic turbulence detection sections are connected through the hollow hinges, a turbine generator is arranged in the energy-power section, the anti-collision head is arranged at the advancing end of the energy-power section, the battery section comprises a rechargeable battery pack and a power supply adaptation device, and the batterysection is encapsulated inside the hollow hinges. According to the electromagnetic detection system and method for the pipeline internal detection, equipment moves in a pipeline to carry out detection for the pipeline, the electromagnetic turbulence detection sections are tightly attached to the inner wall of the pipeline, and the upper moving range and the lower moving range are large so that the actual working condition in the pipeline can be better adapted by the equipment; and the electromagnetic turbulence detection sections adopt bank wound coils and are arranged perpendicular to excitation magnetic fields, excitation magnetic field signals can be effectively reduced, only defect disturbance signals are detected, defect effective signal components are greatly improved and the detection effect is good.

Description

technical field [0001] The invention relates to the field of pipeline detection technology and non-destructive detection, in particular to an electromagnetic detection system for internal detection of pipelines. Background technique [0002] Oil, natural gas pipelines, heating pipelines and other pipelines buried or covered with protective layers are most prone to pipeline corrosion during long-term operation. Pipeline corrosion is an important factor for the safety of pipelines in service. In sparsely populated fields, or in densely populated urban areas, once the pipeline leaks or even bursts due to corrosion, it will endanger the safety of people's lives and property and the safety of the surrounding environment. Therefore, pressure pipelines buried in the ground or covered with protective layers Corrosion detection is particularly important. [0003] At present, the commonly used methods are restricted by technical means, and there are few methods to accurately identify...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used methods are restricted by technical means, and there are few methods that can accurately identify and locate the corrosion damage of pipelines, which often cause unnecessary losses such as blind excavation, blind scrapping, and lack of scientific maintenance.

Images