Optical fiber sensor hot-melting packaging belt, metal pressure pipeline and manufacture method of metal pressure pipeline

Abstract

The invention relates to the technical field of metal pipeline monitoring, in particular to an optical fiber sensor hot-melting packaging belt, a metal pressure pipeline and a manufacture method of the metal pressure pipeline. The optical fiber sensor hot-melting packaging belt is used for monitoring the corrosion state of a pipeline welding line and comprises a hot melting anticorrosion layer, afirst detection optical fiber and a hot melting base layer, wherein the hot melting anticorrosion layer, the first detection optical fiber and the hot melting base layer are vertically overlaid; and the first detection optical fiber is arranged between the hot melting anticorrosion layer and the hot melting base layer in an S-shaped curve along a lateral center line of the hot melting base layer.In the optical fiber sensor hot-melting packaging belt, the first detection optical fiber specially used for monitoring the corrosion state of a pipeline welding line is arranged on the optical fibersensor hot-melting packaging belt along the lateral center line of the hot melting base layer, so that the first detection optical fiber can more accurately detect the change of the stress and the like of the pipeline welding line, and therefore, the corrosion state of the metal pressure pipeline can be accurately monitored.

Description

technical field [0001] The invention relates to the technical field of metal pipeline monitoring, in particular to an optical fiber sensor hot-melt packaging tape, a metal pressure pipeline and a manufacturing method thereof. Background technique [0002] Corrosion of metal pipelines is the main cause of pipeline failure accidents. According to the analysis provided by the domestic metal pressure pipeline safety big data system, more than 80% of metal pipeline corrosion failures are caused by the combined effects of pitting corrosion and stress corrosion, and the failure parts are mainly located in As we all know, the mechanical strength of metal pipe welds is lower than that of the base metal, and the pressure strain of the welds is greater than that of the base metal, which means that the early form of corrosion is slow pitting at the welds In the later stage, under the action of stress, the clustered pitting corrosion develops into cracks, and finally the cracks rapidly e...

AI Technical Summary

Problems solved by technology

[0002] Corrosion of metal pipelines is the main cause of pipeline failure accidents. According to the analysis provided by the domestic metal pressure pipeline safety big data system, more than 80% of metal pipeline corrosion failures are caused by the combined effects of pitting corrosion and stress corrosion, and the failure parts are mainly located in As we all know, the mechanical strength of metal pipe welds is lower than that of the base metal, and the pressure strain of the welds is greater than that of the base metal, which means that the early form of corrosion is slow pitting at the welds , the clustered pitting corrosion develops into cracks under the action of stress in the later stage, and finally the cracks rapidly expand into cracks and cause failure accidents

Images