Rapid pipeline corrosion defect repairing method and safety emergency tool box

Abstract

The invention provides a rapid repairing method. The rapid repairing method comprises surface cleaning, sheet twining, sheet curing and surface detecting, rapid and safe repairing of a leakage pipeline on site can be met, field staff can use tools in the tool box to achieve emergency safety leaking stoppage, repairing can be carried out without waiting for professional staff to arrive, the time needed by maintaining is greatly shortened, and the probability of occurrence of secondary disasters is reduced as much as possible. The invention further provides a safety emergency tool box. The safety emergency tool box comprises a box body and a box cover, the outer surface of the outer shell and / or the outer surface of the box cover are / is provided with a paint layer into which fluorescent powder is added; the internal containing space of the box body is provided with a material area, an equipment area and a tool area; the box cover comprises an outer shell and a storage battery wrapped bythe outer shell, the storage battery can be used for providing power for ultraviolet lighting equipment on site, the ultraviolet lighting equipment is used for curing fiber sheets made of glass fiberreinforced composites, and the purpose that firing is not needed in the site operation process is achieved; and the safety emergency tool box is compact in structure and convenient to carry, can serveas a standing tool box and is widely popularized on the site paved with pipelines.

Description

technical field [0001] The invention belongs to the maintenance field of pipelines, and in particular relates to a quick repair method for pipeline corrosion defects and a safety emergency toolbox. Background technique [0002] Metal and non-metal pipelines, especially the gas pipeline network system, have the risk of corrosion, cracking and perforation, mainly because these pipelines are buried underground for a long time, and uniform corrosion or local corrosion occurs under the action of soil. After the pipeline is corroded, the wall thickness becomes thinner , the ability to withstand internal pressure is reduced, the ability to resist fatigue corrosion is reduced, and the ability to resist leakage and fragmentation is reduced. In a high pH and high potential environment, the rupture of the passivation oxide film causes crack tip dissolution, resulting in intergranular cracking; in a low pH and low potential environment, it mainly manifests as transgranular cracking. Wh...

AI Technical Summary

Problems solved by technology

When the pipeline ruptures, toxic, harmful, flammable and explosive gas will leak. If it cannot be dealt with in time, on the one hand, the leaked toxic and harmful gas will cause harm to the surrounding personnel and endanger the lives of the surrounding personnel; on the other hand , when there is an ignition source around, it will cause accidents such as fire and explosion, which will seriously endanger the safety of the surrounding area and cause accidents such as environmental pollution. Therefore, when the on-site pipeline leaks, it is necessary to quickly and safely deal with the site. To avoid the occurrence of secondary disasters, this demand cannot be realized by conventional repair techniques and tools

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