Novel pipeline anti-corrosion protection technology

Abstract

The invention relates to a novel pipeline anti-corrosion protection technology. A layer of ultraviolet light curing vinylite is attached into a pipeline. The novel pipeline anti-corrosion protection technology includes the steps that (1) construction preparation is conducted, specifically, the sharp edge and welding joints of a steel pipe are polished, and oil removal and cleaning are conducted outside the steel pipe; (2) sand blasting and shot blasting on the surface of the steel pipe are conducted, specifically, the steel pipe (1) is primed within 4 hours after the surface is qualified; (3)the ultraviolet light curing vinylite is painted, specifically, the total thickness of a dry film is 100 [mu]m, and both sides are painted; (4) an ultraviolet light curing thermosetting prepreg sheetis immediately laid after a second primer is applied; (5) a demoulding cloth, a flow guiding net and a vacuum bag are installed, a surface layer of the ultraviolet light curing thermosetting prepreg sheet is teared off, the demoulding cloth is applied on the surface of prepreg, the flow guiding net is arranged on the outer surface of the demoulding cloth, and vacuum extraction equipment is started; (6) the vacuum bag is pressed, irradiated and cured through an ultraviolet lamp; and (7) quality inspection and product warehousing are conducted. The novel pipeline anti-corrosion protection technology has the advantages that products with any sizes and shapes can be produced, the product density is even, performance is stable, equipment is simple, and operation is easy and convenient.

Description

technical field [0001] The invention belongs to the field of anticorrosion protection engineering, and in particular relates to a novel pipeline anticorrosion protection process. Background technique [0002] During the transportation of oilfield pipelines, due to the wear, peeling and aging of the anticorrosion layer of oil and natural gas pipelines, corrosion, perforation and leakage of pipelines will be caused, which will not only bring serious economic losses to enterprises, but also affect the social environment. For example, corrosion and perforation of underground oil and gas pipelines after several years of operation will not only cause oil and gas shackle loss, but also cause waste of maintenance materials, manpower, and loss of production and shutdown, and even cause fires due to corrosion , especially the explosion caused by the corrosion of refined oil pipelines, not only threatens personal safety, but also pollutes the environment. The severity of the consequenc...

AI Technical Summary

Problems solved by technology

[0002] In the transportation process of oilfield pipelines, due to the wear, peeling and aging of the anticorrosion layer of oil and natural gas pipelines, corrosion, perforation and leakage of pipelines will be caused, which will not only bring serious economic losses to enterprises, but also affect the social environment. For example, corrosion and perforation of underground oil and gas pipelines after several years of operation will not only cause oil and gas shackle loss, but also cause waste of maintenance materials, manpower and loss of production and shutdown, and even cause fires due to corrosion , especially the explosion caused by the corrosion of refined oil pipelines, not only threatens personal safety, but also pollutes the environment. The severity of the consequences can be imagined

It can be seen that the corrosion problem will not only cause the waste of steel resources, but also shorten the service life of equipment and pipelines due to corrosion, because the cost of pipeline renewal and equipment far exceeds the price of the material itself, increasing production costs and economic benefits Greatly reduced

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