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Plastic composite pipe of nonmetal framework

A composite pipe, non-metal technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of easy corrosion of steel mesh skeleton, inconvenient maintenance, short service life, etc., and achieve light weight and firm connection. Good quality and long service life

Active Publication Date: 2014-07-16
飞跃(台州)新型管业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The composite pipe of this patent can withstand a relatively large pressure, but the steel mesh skeleton is easily corroded, and once it is corroded and perforated, it will be scrapped, so the service life is relatively short and maintenance is inconvenient

Method used

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  • Plastic composite pipe of nonmetal framework
  • Plastic composite pipe of nonmetal framework
  • Plastic composite pipe of nonmetal framework

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The composite pipe includes a pipe body 1. The pipe body 1 includes a pipe wall outer layer 2, an annular skeleton 3 and a pipe wall inner layer 4 arranged concentrically and sequentially superimposed. Both the pipe wall outer layer 2 and the pipe wall inner layer 4 are dense. The plastic layer, the ring-shaped skeleton 3 is grid-like, and the ring-shaped skeleton 3 is a non-metallic part that resists compression. As a solution, the non-metallic part is PE material welded with glass fibers, and PE is the matrix. PE is a kind of plastic. After adding glass fiber to it as the matrix, it can be molded by injection molding and has good compression resistance. PE can also be homologous with the plastic of the outer layer 2 of the pipe wall and the inner layer 4 of the pipe wall, and can achieve tightness. Welded and fixed, the firmness of the connection is unexpectedly good. The proportion of glass fiber is 0.6-0.9, preferably 0.8. Within the above specific gravity range, t...

Embodiment 2

[0030] The general content of this embodiment is the same as that of Embodiment 1, the difference is that in this embodiment, as another solution, the number of annular skeletons 3 is two and both are located in the outer layer 2 of the pipe wall and the inner layer 4 of the pipe wall. Among them, the caliber of one of the annular skeletons 3 is smaller than that of the other, the two annular skeletons 3 are concentrically distributed and fixedly connected between the two through a number of reinforcing ribs 7, and the reinforcing ribs 7 are distributed along the radial direction of the pipe body 1, strengthening Both ends of the ribs 7 are fixed on the grid intersection of two ring frames 3, wherein the ring frame 3 with a small diameter is welded and fixed to the inner layer 4 of the pipe wall, and the ring frame 3 with a large diameter is connected to the outer layer of the pipe wall. Layer 2 is fixed by welding. The advantage of setting two overlapping ring frames 3 is tha...

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Abstract

The invention provides a plastic composite pipe of a nonmetal framework and belongs to the technical field of pipeline equipment. The technical problem that the anti-pressure capacity and the corrosion resistance of an existing composite pipe cannot be achieved at the same time is solved. The composite pipe comprises a pipe body, wherein the pipe body comprises a pipe wall outer layer, an annular framework and a pipe wall inner layer which are all coaxially arranged and sequentially stacked, the pipe wall outer layer and the pipe wall inner layer are both compact plastic layers, the annular framework is in the shape of grids and a nonmetal part with the anti-pressure capacity, and the pipe wall outer layer and the pipe wall inner layer are respectively fixed to the annular framework through fusion. The annular framework of the composite pipe is made from the nonmetal part and thus is resistant to corrosion, and the service life of the pipe body is prolonged. The annular framework is the nonmetal part and can be fixed to the pipe wall outer layer and the pipe wall inner layer through fusion, and the connecting firmness is better after the fusion and fixation.

Description

technical field [0001] The invention belongs to the technical field of pipeline equipment and relates to a plastic composite pipe with a non-metal skeleton. Background technique [0002] For a long time, the pressure resistance and corrosion resistance of metal pipelines and the corrosion resistance and pressure resistance of plastic pipelines have been a worldwide problem that has plagued the development of pressure pipelines. According to foreign reports, in industrially developed countries, the direct and indirect economic losses caused by pipeline corrosion account for about 3% of the gross national product. accidents accounted for 6.9% of the total number of accidents. In China, the annual loss due to corrosion is as high as 280 billion yuan. During the "Ninth Five-Year Plan" period, if the loss caused by pipeline corrosion can be reduced by one percentage point, the country can reduce the economic loss by tens of billions of yuan every year. The industrial pipelines...

Claims

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Application Information

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IPC IPC(8): F16L9/147
CPCF16L9/147
Inventor 冯平
Owner 飞跃(台州)新型管业科技有限公司
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