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Self-cleaning pipeline

A self-cleaning, pipeline technology, applied in the field of pipelines, can solve the problems of blockage and easy accumulation of dirt on the inner wall of the pipeline

Inactive Publication Date: 2018-11-30
CHONGQING GONGQI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After long-term use of these pipes, dirt is easy to accumulate on the inner wall of the pipe, and even cause blockage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a self-cleaning pipe is made, including the pipe body, which is made of homopolypropylene (PP-H) by injection molding, and of course it can also be made of other materials. In this embodiment, the inner wall surface of the pipe body is made into a wrinkled shape, specifically, the inner wall surface of the pipe body is made into an arc-turned folded shape from the longitudinal direction.

[0027] After the inner surface of the pipe is designed to be wrinkled, the extrusion on the inner surface becomes uneven due to thermal expansion and contraction, so that the convex part of the uneven wrinkled inner surface will be more convex, and because the pipe body has Due to the thickness, the change range of the concave part will be relatively small, so because the change range of different positions on the inner surface of the inner wall is not synchronized, the dirt attached to the inner surface will be dislocated and gradually detached, so that the...

Embodiment 2

[0029] Such as figure 2 As shown, a self-cleaning pipe is produced, including a pipe body, which is injection-molded from random copolymerized polypropylene (PP-R). In this embodiment, the inner wall surface of the pipe body is made into a wrinkled shape, specifically The inner wall surface of the pipe body is made into a straight-folded shape from the longitudinal direction.

Embodiment 3

[0031] Such as image 3 As shown, a self-cleaning pipe is produced, including a pipe body, which is made of block copolymer polypropylene (PP-B) by injection molding. In this embodiment, the inner wall surface of the pipe body is made into a wrinkled shape, specifically The inner wall surface of the pipe body is made into an arc folded shape from the longitudinal direction.

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Abstract

The invention belongs to the technical field of pipelines, and relates to a self-cleaning pipeline. The self-cleaning pipeline comprises a pipe body, and the surface of the inner wall of the pipe bodyis in a wrinkle shape. Specifically, the surface of the inner wall of the pipe body is made into an arc folded shape or a straight folded shape or an arced face folded shape or a wave folded state inthe longitudinal direction. In addition, the pipe body is provided with two layers or additionally provided with a fixing layer, the inner layer adopts a material high in coefficient of thermal expansion, and the fixing layer adopts a material low in coefficient of thermal expansion. The self-cleaning pipeline has the advantages that when thermal expansion and cold shrinkage happen, the shrinkageand expansion direction starts from the inner surface; due to the fact that the inner surface of the inner wall is in the wrinkle shape, extrusion borne by the inner surface of the pipeline due to thermal expansion and cold shrinkage becomes uneven, the outward convex parts of the rugged wrinkle-shaped inner surface are more convex, and the change degree of the inward concave parts is relativelysmall; and due to the fact that the change degrees of different portions on the inner surface are not synchronous, when the shrinkage and expansion amplitude of the inner surface reaches a certain degree, dirt attached to the inner surface can be staggered and gradually separated, and therefore self cleaning is achieved.

Description

technical field [0001] The invention belongs to the technical field of pipelines, in particular to a self-cleaning pipeline. Background technique [0002] my country's plastic pipes are developing rapidly, and the quality is constantly improving. At present, the plastic pipe industry mainly composed of polyvinyl chloride pipes, polyethylene pipes and polypropylene pipes has been initially formed. These pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission and distribution, gas pipelines, electrical and telecommunications protection casings, and industrial pipes due to their high strength, corrosion resistance, and non-toxic characteristics. , Agricultural pipes, etc. It is mainly used in urban water supply, urban gas supply and farmland irrigation. [0003] After these pipelines are used for a long time, the inner wall of the pipeline is easy to accumulate dirt, and even cause blockage. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/24F16L9/12
CPCF16L9/12F16L55/24
Inventor 王耀锋周刚汪进
Owner CHONGQING GONGQI TECH CO LTD
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