Novel anticorrosion protection mechanism for river-crossing pipeline

Abstract

The invention discloses a novel anticorrosion protection mechanism for a river-crossing pipeline. The novel anticorrosion protection mechanism comprises a metal pipeline; an STACprime petrolatum primecoat is arranged on the outer layer of the metal pipeline; an STACwarp anticorrosion band is arranged on the outer side of the STACprime petrolatum prime coat; an STAC guard band is arranged on the outer side of the STACwarp anticorrosion band; an STACguardAG coating band is arranged on the outer side of the STAC guard band; a PolyArmor thick epoxy coating layer is arranged on the outer side of the STACguardAG coating band; and a strengthening mechanism is arranged on the outer side of the PolyArmor thick epoxy coating layer. By using multiple materials of different qualities and adopting a multiple-layer structure way in the application process, the purposes of pipeline anticorrosion and structure protection are achieved, and the corrosion part of the pipeline is coated with an STAC petrolatum anticorrosion layer, so that corrosive materials such as water, various ions, salt mist and oxygen can be effectively prevented from being in contact with the surface of a metal, and furthermore, the long-lasting anticorrosion purpose is achieved; the outer layer has a good sealing effect and excellent weather resistance, is not likely to age, and can effectively protect a soft petrolatum anticorrosion layer inside, thereby being worth being popularized.

Description

technical field [0001] The invention relates to the technical field of pipeline protection, in particular to a novel anticorrosion protection mechanism for cross-river pipelines. Background technique [0002] Natural gas pipeline refers to the pipeline that transports natural gas (including associated gas produced in oil fields) from mining sites or processing plants to urban gas distribution centers or industrial enterprise users, also known as gas pipelines. The use of natural gas pipelines to transport natural gas is a way to transport large quantities of natural gas on land. Natural gas pipelines account for about half of the world's total pipeline length. In the construction of gas pipeline laying, there are three main schemes for pipelines crossing the river: crossing the river bottom, laying with bridges, and crossing with pipe bridges. The temperature in the north is low, and crossing the bottom of the river is often used. In the south, because it is laid on the b...

AI Technical Summary

Problems solved by technology

[0004] At present, many river-crossing pipelines are used to transmit natural gas. Galvanized anti-corrosion methods are adopted. Cracks, peeling, peeling and other phenomena lead to the failure of the anti-rust paint on the surface of the pipeline to protect the pipeline

Repeated rust removal and painting for many times not only increased the consumption of labor and materials, but also caused severe corrosion in some parts of the pipeline, which brought greater risks to management and normal operation. Therefore, a new type of anti-corrosion protection mechanism for cross-river pipelines was designed.

Images