CN216843471U

CN216843471U - Continuous fiber reinforced composite three-wall corrugated pipe

Info

Publication number: CN216843471U
Application number: CN202220257419.5U
Authority: CN
Inventors: 陈和
Original assignee: Changwei Xiamen Plastic Technology Co ltd
Current assignee: Changwei Xiamen Plastic Technology Co ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-06-28
Anticipated expiration: 2032-02-08

Abstract

The utility model provides a continuous fiber reinforced composite three-wall corrugated pipe, which comprises a composite inner wall, a middle wall and a composite outer wall; the composite inner wall comprises a plastic inner layer and a first continuous fiber layer compounded on the outer wall of the plastic inner layer. The utility model has the advantages that: the hoop stress and the axial stress of the corrugated pipe can be improved, the impact resistance of the corrugated pipe is improved, the longitudinal shrinkage rate and the creep ratio of the pipe are greatly reduced, and the service life of the corrugated pipe is prolonged.

Description

Continuous fiber reinforced composite three-wall corrugated pipe

[ technical field ] A method for producing a semiconductor device

The utility model relates to a bellows technical field, in particular to compound three wall bellows of continuous fibers reinforcing.

[ background of the invention ]

The double-wall corrugated pipe is a novel pipe with an outer wall with an annular structure and a smooth inner wall, and is successfully developed in the early 80 s of the last century. Over decades of development and sophistication, a single variety has evolved into a complete product line. The production process and the use technology are well mature. The high-temperature-resistant and high-temperature-resistant composite material has the excellent performances of reasonable structure, attractive appearance, high external pressure resistance, high temperature resistance, small resistance, high flow, high flame resistance, long service life, reliable sanitary performance, low comprehensive manufacturing cost, acid and alkali resistance, corrosion resistance, high strength, high anti-seismic performance, energy conservation, consumption reduction, convenience in installation and transportation and the like, and has relatively economic manufacturing cost, so that the high-temperature-resistant and high-temperature-resistant composite material is greatly popularized and applied in developed countries such as Europe and America. In China, the medium and small-caliber rain and sewage pipelines adopt HDPE double-wall corrugated pipes in an ascending state stage, and are widely applied to the fields of agricultural irrigation and drainage, urban rain and sewage discharge, low-pressure water delivery, communication power sheath pipe networks and the like.

However, the outer wall of the double-wall corrugated pipe is of a hollow corrugated structure, so that the pipe is easy to crack, collapse and the like in the transportation and construction processes, and the quality and the service life of the pipe are influenced; in addition, although pure plastic three-wall corrugated pipes are available in the market, the outer wall of the pure plastic three-wall corrugated pipe is thin, the impact resistance is poor, and the effect of protecting the pipe cannot be completely achieved.

[ Utility model ] content

The to-be-solved technical problem of the utility model lies in providing a compound three wall bellows of continuous fibers reinforcing, can improve the shock resistance of bellows, and the longitudinal shrinkage rate of greatly reduced tubular product and creep ratio prolong the life of bellows.

The utility model discloses a realize like this:

a continuous fiber reinforced composite three-wall corrugated pipe comprises a composite inner wall, a middle wall and a composite outer wall; the composite inner wall comprises a plastic inner layer and a first continuous fiber layer compounded on the outer wall of the plastic inner layer.

Preferably, the composite outer wall comprises an outer wall plastic inner layer compounded to the outer wall of the intermediate wall, a second continuous fiber layer compounded to the outer wall of the outer wall plastic inner layer, and an outer wall plastic outer layer compounded to the outer wall of the second continuous fiber layer.

Preferably, the intermediate wall is a corrugated layer having peaks and valleys.

Preferably, the plastic inner layer and the first continuous fiber layer are connected together through hot melt compounding, and the first continuous fiber layer and the intermediate wall are connected together through hot melt compounding.

Preferably, the outer wall plastic inner layer and the second continuous fiber layer are connected together through hot melting compounding, and the second continuous fiber layer and the outer wall plastic outer layer are connected together through hot melting compounding.

Preferably, the plastic inner layer has a smooth inner wall.

Preferably, the corrugated layer has a triangular, rectangular, trapezoidal or arc-shaped cross section.

Through adopting the technical scheme of the utility model, following beneficial effect has at least:

1. the adoption sets up first continuous fiber layer between the plastics inlayer outer wall of compound inner wall and intermediate wall, utilize first continuous fiber layer to play the effect of reinforcing to whole three-wall bellows, because continuous fibers has high pressure resistant, high temperature resistant, corrosion-resistant, insulating properties is good, mechanical strength is high, vertical shrinkage is low, creep ratio advantage such as low, consequently, can improve the hoop stress and the axial stress of bellows, promote the shock resistance of bellows, vertical shrinkage and the creep ratio of greatly reduced tubular product, and the life of extension bellows.

2. The utility model discloses except setting up first continuous fiber layer between the outer wall of plastics inlayer and the intermediate wall, still set up second continuous fiber layer and outer wall plastics skin on compound outer wall, increased the protection to the annular structure outer wall of bellows, consequently can further improve the hoop stress and the axial stress of the whole three-dimensional structure of bellows, and then further promote each item excellent properties such as the shock resistance of bellows to further prolong the life of bellows.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a cross-sectional view of the continuous fiber reinforced composite three-wall corrugated pipe of the present invention.

Description of reference numerals:

100-corrugated pipe, 1-composite inner wall, 11-plastic inner layer, 12-first continuous fiber layer, 2-middle wall, 21-wave crest, 22-wave trough, 3-composite outer wall, 31-outer wall plastic inner layer, 32-second continuous fiber layer and 33-outer wall plastic outer layer.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present invention, the technical solutions of the present invention will be described in detail below with reference to the drawings and specific embodiments.

It is noted herein that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

Referring to fig. 1, in a preferred embodiment of a continuous fiber reinforced composite three-wall corrugated pipe 100 according to the present invention, the corrugated pipe 100 includes a composite inner wall 1, an intermediate wall 2 and a composite outer wall 3; the composite inner wall 1 comprises a plastic inner layer 11 and a first continuous fiber layer 12 compounded on the outer wall of the plastic inner layer 11.

The utility model discloses a set up first continuous fiber layer 12 between 11 outer walls of plastics inlayer of compound inner wall 1 and intermediate wall 2, utilize first continuous fiber layer 12 to play the effect of reinforcing to whole three-wall bellows 100, because continuous fiber has high pressure resistant, high temperature resistant, corrosion-resistant, insulating properties is good, mechanical strength is high, vertical shrinkage rate is low, creep ratio low grade advantage, consequently, can improve the hoop stress and the axial stress of bellows 100, promote the shock resistance of bellows 100, the vertical shrinkage rate of greatly reduced tubular product and creep ratio, and prolong the life of bellows 100.

In the embodiment of the present invention, the composite outer wall 3 includes an outer wall plastic inner layer 31 compounded on the outer wall of the middle wall 2, a second continuous fiber layer 32 compounded on the outer wall of the outer wall plastic inner layer 31, and an outer wall plastic outer layer 33 compounded on the outer wall of the second continuous fiber layer 32.

The utility model discloses in except setting up first continuous fiber layer 12 between the outer wall of plastics inlayer 11 and middle wall 2, still set up second continuous fiber layer 32 and outer layer 33 of outer wall plastics on compound outer wall 3, the protection to the annular structure outer wall of bellows 100 has been increased, consequently can further improve the hoop stress and the axial stress of the whole three-dimensional structure of bellows 100, and then further promote each item excellent properties such as the shock resistance of bellows 100, and further prolong the life of bellows 100.

In an embodiment of the present invention, the intermediate wall 2 is a corrugated layer having peaks 21 and valleys 22.

In the embodiment of the present invention, the plastic inner layer 11 and the first continuous fiber layer 12 are connected together through hot melting, and the first continuous fiber layer 12 and the middle wall 2 are connected together through hot melting, so that the plastic inner layer 11, the first continuous fiber layer 12 and the middle wall 2 can be firmly combined together to improve the impact resistance.

In the embodiment of the present invention, the outer wall plastic inner layer 31 and the second continuous fiber layer 32 are connected together through hot melting, the second continuous fiber layer 32 and the outer wall plastic layer 33 are connected together through hot melting, so that the outer wall plastic inner layer 31, the second continuous fiber layer 32 and the outer wall plastic layer 33 can be firmly combined together to improve the impact resistance.

In the embodiment of the present invention, the plastic inner layer 11 has a smooth inner wall 111 to reduce the friction between the fluid transported in the bellows 100 and the inner wall of the bellows 100, and ensure a smoother transportation of the fluid.

The utility model discloses an in the embodiment, the cross section of ripple layer 2 is triangle-shaped, rectangle, trapezoidal or arc, when concrete implementation promptly, the cross section of ripple layer 2 can adopt any one among triangle-shaped, rectangle, trapezoidal and the arc according to actual need.

The utility model discloses a bellows 100 is when using, and is applicable in fields such as agricultural irrigation and drainage, urban rain sewage discharge, low pressure water delivery, communication electric power sheath pipe network.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a compound three wall bellows of continuous fibers reinforcing which characterized in that: comprises a composite inner wall, a middle wall and a composite outer wall; the composite inner wall comprises a plastic inner layer and a first continuous fiber layer compounded on the outer wall of the plastic inner layer.

2. The continuous fiber reinforced composite triple wall corrugated pipe of claim 1, wherein: the composite outer wall comprises an outer wall plastic inner layer compounded on the outer wall of the middle wall, a second continuous fiber layer compounded on the outer wall of the outer wall plastic inner layer, and an outer wall plastic outer layer compounded on the outer wall of the second continuous fiber layer.

3. The continuous fiber reinforced composite triple wall corrugated pipe of claim 1, wherein: the intermediate wall is a corrugated layer having peaks and valleys.

4. The continuous fiber reinforced composite triple wall corrugated pipe of claim 1, wherein: the plastic inner layer and the first continuous fiber layer are connected together through hot melting compounding, and the first continuous fiber layer and the middle wall are connected together through hot melting compounding.

5. The continuous fiber reinforced composite triple wall corrugated pipe of claim 2, wherein: the outer wall plastic inner layer and the second continuous fiber layer are connected together in a hot melting compounding mode, and the second continuous fiber layer and the outer wall plastic outer layer are connected together in a hot melting compounding mode.

6. The continuous fiber reinforced composite triple wall corrugated pipe of claim 1, wherein: the plastic inner layer has a smooth inner wall.

7. The continuous fiber reinforced composite triple wall corrugated pipe of claim 3, wherein: the cross section of the corrugated layer is triangular, rectangular, trapezoidal or arc-shaped.