Anti-corrosion pipeline for natural gas

Abstract

The invention provides an anti-corrosion pipeline for natural gas. The anti-corrosion pipeline comprises a core pipe, an inner pipe, an outer pipe, reinforcing rings, filling layers, an anti-corrosion paint layer and an anti-corrosion layer. The inner pipe is arranged in the core pipe, the outer pipe is arranged on the outer side of the core pipe, the filling layers are arranged between the core pipe and the inner pipe and between the core pipe and the outer pipe respectively, and the anti-corrosion paint layer is arranged on the surface of the core pipe. An anti-corrosion layer is further arranged on the outer side of the outer pipe, and a radiation cross-linked polyethylene composite layer is further wrapped on the outer side of the anti-corrosion layer. The inner pipe and the outer pipe are arranged inside and outside the core pipe respectively, the filling layers are arranged between the core pipe and the inner pipe and between the core pipe and the outer pipe respectively, the core pipe and the outside can be well blocked, the core pipe is prevented from being corroded, meanwhile, multi-spherical blunt grooves are formed in the surface of the core pipe, the fixing firmness of the anti-corrosion paint layer can be enhanced, and therefore the effect of preventing corrosion is achieved. The anti-corrosion layer and the radiation cross-linked polyethylene composite layer can effectively prevent the appearance from being corroded, and the appearance is prevented from making direct contact with the ground.

Description

technical field [0001] The invention relates to the technical field of natural gas metal hoses, in particular to a corrosion-resistant pipeline for natural gas. Background technique [0002] Natural gas metal hoses are often seen in daily life. They are the connecting components of natural gas transmission pipelines and gas equipment such as stoves. They are usually composed of bellows, net sleeves and joints. , greatly improving the convenience of device installation and operation. [0003] At present, the structure of common natural gas metal hoses is relatively simple, and its anti-corrosion performance is still imperfect. Containing sulfur dioxide and other acidic substances will also cause corrosion to the inner wall of the device and affect the normal use of the device. [0004] In view of this, the existing problems are studied and improved, and a corrosion-resistant pipeline for natural gas is provided, aiming at solving the problems and improving the practical val...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an anti-corrosion pipeline for natural gas to solve the problem that the current common natural gas metal hose proposed in the background technology is relatively simple in structure, and its anti-corrosion performance is still imperfect. The outside is easily corroded by water vapor and oil pollution. At the same time, since the inside of natural gas often contains sulfur dioxide and other acidic substances, it will also cause corrosion on the inner wall of the device, affecting the normal use of the device.

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