Freezing fracture prevention plastic pipe

Abstract

The invention discloses a freezing fracture prevention plastic pipe. The freezing fracture prevention plastic pipe comprises a plastic pipe body in a cylindrical structure, wherein the outer wall of the plastic pipe body is wrapped by an anti-freezing sponge layer, an arc convex part is arranged on the inner wall of the anti-freezing sponge layer, the outer wall of the anti-freezing sponge layer is wrapped by a metal fiber layer, the outer wall of the metal fiber layer is coated with a heat absorbing layer, a plurality of heating layers and thermal insulation layers are arranged in the circumference direction of the heat absorbing layer, heating rods are arranged in the middles of the heating layers, and the outer walls of the thermal insulation layers are wrapped by wear-resistant layers.According to the freezing fracture prevention plastic pipe, the wear amount of the plastic pipe is effectively reduced, the service life is prolonged, and the freezing phenomenon of the plastic pipeis avoided.

Description

technical field [0001] The invention belongs to the technical field of plastic pipes, in particular to an anti-freezing and cracking plastic pipe. Background technique [0002] Plastic pipes are generally made of plastic as a matrix and processed by extrusion in a pipe making machine. They have a wide range of applications, but plastic pipes are prone to freezing and cracking in low-temperature environments, and are prone to aging, which seriously affects normal use. The service life is greatly reduced. At the same time, most of the pipeline antifreeze in the prior art only uses simple antifreeze sponges. Therefore, when the antifreeze sponge is damaged, the cold air directly invades the outer surface of the pipeline, causing the pipeline to be cracked by freezing, and the outer surface of the pipeline The surface is smooth, so the contact area between the antifreeze sponge and the outer surface of the pipe is limited, so the antifreeze effect is poor. Contents of the inve...

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Problems solved by technology

[0002] Plastic pipes are generally made of plastic as a matrix and processed by extrusion in a pipe making machine. They have a wide range of applications, but plastic pipes are prone to freezing and cracking in low-temperature environments, and are prone to aging, which seriously affects normal use. The service life is greatly reduced. At the same time, most of the pipeline antifreeze in the prior art only uses simple antifreeze sponges. Therefore, when the antifreeze sponge is damaged, the cold air directly invades the outer surface of the pipeline, causing the pipeline to be cracked by freezing, and the outer surface of the pipeline The surface is smooth, so the contact area between the antifreeze sponge and the outer surface of the pipe is limited, so the antifreeze effect is poor

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