CN216112591U

CN216112591U - High-wear-resistance PE gas pipe buried in corrugated framework

Info

Publication number: CN216112591U
Application number: CN202120142689.7U
Authority: CN
Inventors: 汤锦; 汤仕尧; 石向云; 童祀丰; 周立军; 卢可萍
Original assignee: Zhejiang Jinyu Fengye Pipe Ind Co ltd
Current assignee: Zhejiang Jinyu Fengye Pipe Ind Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-03-22
Anticipated expiration: 2031-01-19

Abstract

The utility model provides a bury PE gas pipe with high wear-resisting ripple skeleton, includes that PE pipe layer, resistance to compression layer and a plurality of adopt the ripple arch of circular arc transition, resistance to compression layer set up in PE pipe layer outside, resistance to compression in situ wall be cyclic annular array and be equipped with a plurality of buffering strip, resistance to compression layer with PE pipe layer between the bonding be fixed with the buffer layer, a plurality of the ripple arch be the heliciform and encircle resistance to compression layer outside and form ripple skeleton layer, ripple skeleton layer include wearing layer and protective layer, the wearing layer set up in the protective layer outside, the wearing layer with the protective layer between bond fixedly through the bonding layer. According to the utility model, the buffer layer is arranged, so that the impact force can be reduced, the elasticity in the PE gas pipe can be effectively enhanced, the pressure buffering capacity of the inner wall of the PE gas pipe is improved, and the external pressure resisting load capacity of the PE gas pipe can be improved.

Description

High-wear-resistance PE gas pipe buried in corrugated framework

Technical Field

The utility model relates to the technical field of gas pipelines, in particular to a high-wear-resistance underground PE gas pipe with a corrugated framework.

Background

The corrugated pipe is made of polyethylene resin as main raw material, and proper amount of auxiliary agent is added, and the corrugated pipe is extruded and molded, is more and more widely applied, and is gradually applied to buildings, communication and agriculture. It has the advantages of light weight, small resistance, high compression strength, convenient construction, etc. and is an ideal material for replacing cast iron pipe and cement concrete pipe. The existing Chinese patent No. ZL201720290609.6 is named as a wear-resistant and scratch-resistant buried PE gas pipeline, and discloses a wear-resistant and scratch-resistant buried PE gas pipeline, which has the beneficial effects that the scratch resistance is improved, and simultaneously all the advantages of the original PE gas pipeline are reserved; the service life of the PE gas pipeline is prolonged, and safety accidents are avoided. It also has the following disadvantages: the external pressure load resistance is relatively poor, the pressure buffering capacity is weak, the pipe is easy to deform, the service life is short and the like.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the problems, the high-wear-resistance underground PE gas pipe with the corrugated framework is provided, and the problems that the external pressure load resistance is relatively poor, the pressure buffering capacity is weak, the pipe is easy to deform, the service life is short and the like are solved.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

the utility model provides a bury PE gas pipe with high wear-resisting ripple skeleton, includes PE pipe layer, resistance to compression layer and a plurality of adopts the ripple arch of circular arc transition, resistance to compression layer set up in PE pipe layer outside, resistance to compression in situ wall be cyclic annular array and be equipped with a plurality of buffering strip, resistance to compression layer with PE pipe layer between the bonding be fixed with the buffer layer, a plurality of ripple arch be the heliciform and encircle resistance to compression layer outside and form ripple skeleton layer, ripple skeleton layer include wearing layer and protective layer, the wearing layer set up in the protective layer outside, the wearing layer with the protective layer between bond fixedly through the adhesive linkage, the adhesive linkage be the bonding resin layer, the protective layer set up in resistance to compression layer outside, protective layer inner wall with resistance to compression layer outer wall between form a plurality of confined holding tank, the holding tank in the bonding be fixed with the cross-section for the reinforcing pad of isosceles trapezoid.

Further, the wear-resistant layer is formed by combining polyethylene and silicon dioxide particles.

Further, each buffer strip is arranged to be semi-cylindrical.

Furthermore, the extending direction of each buffer strip is parallel to the length direction of the PE tube layer, and the cylindrical surface of each buffer strip is elastically attached to the outer wall of the buffer layer.

Furthermore, the buffer layer is made of rubber materials, and the inner part of the buffer layer is arc-shaped.

Furthermore, the cross section of the joint of the compression-resistant layer and the buffer strip is arc-shaped.

Furthermore, the shape of the reinforcing pad is matched with the inner shape of the accommodating groove, and the top of the reinforcing pad adopts spherical transition.

The utility model has the advantages and positive effects that:

the wear-resistant layer is arranged, so that the outer surface of the gas pipe can be effectively prevented from being worn during transportation and installation; by arranging the reinforcing pad, the ring stiffness of the corrugated pipe can be effectively enhanced, and the pipe is prevented from deforming; through setting up the buffer layer, can alleviate the impact force, not only can effectively strengthen the inside elasticity of PE gas pipe to promote PE gas pipe inner wall buffer pressure's ability, can also promote the anti external pressure load capacity of PE gas pipe simultaneously.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic cross-sectional structural view of the present invention;

FIG. 2 is a schematic view of the inner layer structure of the pipe of the present invention.

The scores in the figures are as follows: 1. a wear layer; 2. an adhesive layer; 3. a protective layer; 4. the corrugated bulges are arranged; 5. accommodating grooves; 6. a reinforcing pad; 7. a pressure resistant layer; 8. a buffer layer; 9. a PE tube layer; 10. a buffer strip; 11. a corrugated skeleton layer.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The embodiments of the utility model will be described in further detail below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the high wear-resistant buried PE gas pipe with corrugated skeleton according to the present invention includes a PE pipe layer 9, a compression-resistant layer 7 and a plurality of corrugated protrusions 4 using circular arc transition, the compression-resistant layer 7 is disposed on the outer side of the PE pipe layer 9, a plurality of buffer strips 10 are disposed on the inner wall of the compression-resistant layer 7 in an annular array, a buffer layer 8 is fixedly bonded between the compression-resistant layer 7 and the PE pipe layer 9, a plurality of corrugated protrusions 4 spirally surround the outer side of the compression-resistant layer 7 and form a corrugated skeleton layer 11, the corrugated skeleton layer 11 includes a wear-resistant layer 1 and a protective layer 3, the wear-resistant layer 1 is disposed on the outer side of the protective layer 3, the wear-resistant layer 1 and the protective layer 3 are fixedly bonded by a bonding layer 2, the bonding layer 2 is an adhesive resin layer, the protective layer 3 is disposed on the outer side of the compression-resistant layer 7, the inner wall of the protective layer 3 and the outer wall of the pressure resistant layer 7 form a plurality of closed accommodating grooves 5, and reinforcing pads 6 with isosceles trapezoid cross sections are fixedly bonded in the accommodating grooves 5.

In one embodiment, the wear resistant layer 1 is formed by combining polyethylene and silica particles, and can effectively prevent the outer surface of the gas pipe from being worn during transportation and installation.

In an embodiment, each of the buffer strips 10 is configured to be semi-cylindrical, so that the stress area of the buffer layer 8 can be increased, and the pressure buffering capacity can be improved.

In an embodiment, the extending direction of each buffer strip 10 is parallel to the length direction of the PE tube layer 9, and the cylindrical surface of each buffer strip 10 is elastically attached to the outer wall of the buffer layer 8, so that the stress is uniform, the PE tube layer 9 is protected better, the PE tube layer is not easy to break, and the service life is prolonged.

In one embodiment, the buffer layer 8 is made of rubber materials, is arc-shaped inside, can well play a role in resisting extrusion impact, and is convenient for people to use.

In one embodiment, the cross section of the connection part between the compression-resistant layer 7 and the buffering strip 10 is arc-shaped, so as to reduce the impact force.

In one embodiment, the shape of the reinforcing pad 6 is matched with the inner shape of the accommodating groove 5, and the top of the reinforcing pad 6 adopts spherical transition, so that the stressed area can be increased, and the deformation resistance of the pipe can be improved conveniently.

When specifically implementing, through setting up wearing layer 1, can effectively prevent wearing and tearing its surface when gas pipe transports and installs, strengthen pad 6 through setting up, can effectively strengthen the ring rigidity of bellows, prevent that tubular product from taking place to warp, through setting up buffer layer 8, cushion rubber has the compliance, can alleviate the impact force, not only can effectively strengthen the inside elasticity of PE gas pipe, thereby promote PE gas pipe inner wall buffer pressure's ability, can also promote the anti external pressure load capacity of PE gas pipe simultaneously.

It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but other embodiments derived from the technical solutions of the present invention by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides a bury PE gas pipe with high wear-resisting ripple skeleton, includes that PE pipe layer (9), resistance to compression layer (7) and a plurality of adopt the ripple arch (4) of circular arc transition, its characterized in that: anti-pressure layer (7) set up in PE pipe layer (9) outside, anti-pressure layer (7) inner wall be cyclic annular array and be equipped with a plurality of buffer strip (10), anti-pressure layer (7) with PE pipe layer (9) between the bonding be fixed with buffer layer (8), a plurality of ripple arch (4) be the heliciform and encircle anti-pressure layer (7) outside and form ripple skeleton layer (11), ripple skeleton layer (11) include wearing layer (1) and protective layer (3), wearing layer (1) set up in protective layer (3) outside, wearing layer (1) with protective layer (3) between bond pad (2) bonding be fixed, bonding layer (2) be the adhesive resin layer, protective layer (3) set up in anti-pressure layer (7) outside, protective layer (3) inner wall with anti-pressure layer (7) outer wall between form a plurality of confined holding tank (5) And a reinforcing pad (6) with an isosceles trapezoid cross section is fixedly bonded in the accommodating groove (5).

2. The high-abrasion-resistance underground PE gas pipe with the corrugated framework as claimed in claim 1, wherein: each buffer strip (10) is semi-cylindrical.

3. The high-abrasion-resistance underground PE gas pipe with the corrugated framework as claimed in claim 1, wherein: the extending direction of each buffer strip (10) is parallel to the length direction of the PE tube layer (9), and the cylindrical surface of each buffer strip (10) is elastically attached to the outer wall of the buffer layer (8).

4. The high-abrasion-resistance underground PE gas pipe with the corrugated framework as claimed in claim 1, wherein: the buffer layer (8) is made of rubber materials, and the inner part of the buffer layer is arc-shaped.

5. The high-abrasion-resistance underground PE gas pipe with the corrugated framework as claimed in claim 1, wherein: the section of the joint of the anti-pressure layer (7) and the buffer strip (10) is arc-shaped.

6. The high-abrasion-resistance underground PE gas pipe with the corrugated framework as claimed in claim 1, wherein: the shape of the reinforcing pad (6) is matched with the inner shape of the accommodating groove (5), and the top of the reinforcing pad (6) adopts spherical transition.