CN217130574U

CN217130574U - Multilayer composite high-strength PE pipe and connecting structure thereof

Info

Publication number: CN217130574U
Application number: CN202220958500.6U
Authority: CN
Inventors: 陈昆
Original assignee: Sichuan Xinzhongtai New Material Co ltd
Current assignee: Sichuan Xinzhongtai New Material Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-05
Anticipated expiration: 2032-04-24

Abstract

The application discloses compound high strength PE pipe of multilayer and connection structure thereof relates to the technical field of pipeline, and the PE pipe includes the body, the body is from interior to exterior including polymer plastics inlayer, mesh steel belt layer, polymer plastics intermediate level, chemical fiber layer and polymer plastics skin. This application has the effect that improves the intensity of PE pipe.

Description

Multilayer composite high-strength PE pipe and connecting structure thereof

Technical Field

The application relates to the technical field of pipelines, in particular to a multilayer composite high-strength PE pipe and a connecting structure thereof.

Background

The PE pipe, also called polyethylene pipe, has the advantages of corrosion resistance, cracking resistance, reliable connection and the like, and is widely applied to the fields of gas transmission pipes, agricultural pipes, building drainage and the like. In the related technology, the PE pipe uses a single-layer single material, has a simple structure and is low in production cost.

In view of the above-described related art, the inventors found that: PE pipes are sometimes laid underground, and a single layer of PE pipe of a single material is generally of low strength and difficult to accommodate for high strength work requirements.

SUMMERY OF THE UTILITY MODEL

In order to improve the intensity of PE pipe, this application provides a compound high strength PE pipe of multilayer and connection structure thereof.

A multilayer composite high-strength PE pipe comprises a pipe body, wherein the pipe body comprises a polymer plastic inner layer, a mesh steel belt layer, a polymer plastic middle layer, a chemical fiber layer and a polymer plastic outer layer from inside to outside.

Through adopting above-mentioned technical scheme, body from interior to exterior is provided with polymer plastics inlayer, mesh steel belt layer, polymer plastics intermediate level, chemical fiber layer and polymer plastics skin, for the single PE pipe of material of individual layer, has improved the intensity and the impact resistance of PE pipe for the PE pipe is more not fragile, has prolonged the life of PE pipe.

Optionally, the inner layer of polymer plastic is composed of a polymer plastic with antistatic properties.

By adopting the technical scheme, the polymer plastic inner layer formed by the polymer plastic with the antistatic property reduces the possibility of static electricity gathering on the polymer plastic inner layer, so that the possibility of static electricity gathering on the pipe body is reduced.

Optionally, the polymer plastic intermediate layer is composed of a polymer plastic having antistatic properties.

By adopting the technical scheme, the possibility of static electricity gathering on the polymer plastic middle layer is reduced, and the possibility of static electricity gathering on the pipe body is reduced.

Optionally, the chemical fiber layer comprises a glass fiber layer or a polypropylene fiber layer.

By adopting the technical scheme, the glass fiber layer and the polypropylene fiber layer have the advantages of high strength, excellent impact resistance and certain heat preservation and insulation effects; by using the glass fiber or the polypropylene fiber, the strength, the impact resistance and the heat insulation property of the pipe body are improved.

Optionally, the chemical fiber layer is spirally wound.

Through adopting above-mentioned technical scheme for the chemical fiber atress in the chemical fiber layer is relatively even, has improved the intensity on chemical fiber layer, thereby has improved the intensity of body.

Optionally, the outer layer of the chemical fiber layer is coated with a layer of static conductive plastic.

Through adopting above-mentioned technical scheme, the static of polymer plastics inlayer and polymer plastics intermediate level gathering, the static plastics that leads through the coating of chemical fiber layer inlayer conduct the polymer plastics skin, and the outer static of polymer plastics is eliminated to rethread pipe body earthing device to reduce the possibility of static at polymer plastics inlayer and polymer plastics intermediate level gathering, improved the antistatic performance of body.

Optionally, the polymer plastic outer layer is composed of a polymer plastic with flame retardant and antistatic properties.

Through adopting above-mentioned technical scheme, improved the fire-retardant antistatic characteristic of body, reduced the possibility that the body burns in the condition such as conflagration, also improved the antistatic properties of body.

The utility model provides a connection structure of compound high strength PE pipe of multilayer, includes the compound high strength PE pipe of foretell multilayer, still includes:

the pipe fitting body is provided with openings at two ends and is arranged outside the pipe body;

the resistance wire is arranged on the inner wall of the pipe fitting body; and the number of the first and second groups,

and the binding post is arranged on the outer wall of the pipe fitting body, is electrically connected with the resistance wire and is connected with the pipe fitting body.

By adopting the technical scheme, after the wiring terminal is electrified, the resistance wire generates heat, so that the pipe fitting body is melted; when the pipe fitting body is cooled, the melted portion of the pipe fitting body is integrated with the pipe body, thereby connecting the two sections of the pipe body together.

In summary, the present application at least includes the following beneficial technical effects:

the pipe body is provided with polymer plastics inlayer, mesh steel belt layer, polymer plastics intermediate level, chemical fiber layer and polymer plastics skin from inside to outside, for the PE pipe of single material of individual layer, has improved the intensity of PE pipe for the PE pipe is more not fragile, has prolonged the life of PE pipe.

Drawings

Fig. 1 is a cross-sectional view of a multilayer composite high strength PE pipe according to an embodiment of the present application.

Fig. 2 is a schematic overall structural diagram of a connection structure of a multilayer composite high-strength PE pipe according to an embodiment of the present application.

Fig. 3 is a sectional view of a connection structure of a multilayer composite high strength PE pipe according to an embodiment of the present application.

Description of reference numerals: 1. a pipe body; 2. an inner layer of polymer plastic; 3. a mesh steel belt layer; 4. a polymer plastic intermediate layer; 5. a chemical fiber layer; 6. an outer layer of a polymer plastic; 7. a tube body; 8. a resistance wire; 9. and (4) binding posts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-3 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the application discloses multilayer composite high-strength PE pipe and a connecting structure thereof.

Referring to fig. 1, the multilayer composite high-strength PE pipe comprises a pipe body 1, wherein the pipe body 1 comprises, from inside to outside, a polymer plastic inner layer 2, a mesh steel belt layer 3, a polymer plastic intermediate layer 4, a chemical fiber layer 5, and a polymer plastic outer layer 6. In this embodiment, the side wall of the polymer plastic inner layer 2 is wrapped with the meshed steel belt layer 3, the side wall of the meshed steel belt layer 3 is wrapped with the polymer plastic intermediate layer 4, the side wall of the polymer plastic intermediate layer 4 is wrapped with the chemical fiber layer 5, and the outer wall of the chemical fiber layer 5 is wrapped with the polymer plastic outer layer 6. Compared with a common single-layer single-material PE pipe, the multilayer composite high-strength PE pipe is relatively higher in strength and ring rigidity, relatively higher in impact resistance, less prone to damage and relatively longer in service life.

Referring to fig. 1, in order to improve the antistatic property of a pipe body 1, a polymer plastic inner layer 2 is formed of a polymer plastic having an antistatic property, and a polymer plastic intermediate layer 4 is formed of a polymer plastic having an antistatic property; in order to improve the antistatic and flame-retardant properties of the tubular body 1, the polymeric plastic outer layer 6 is composed of a polymeric plastic having flame-retardant antistatic properties. Wherein the polymer plastic comprises polyethylene and heat-resistant polyethylene.

Referring to fig. 1, the chemical fiber layer 5 includes a glass fiber layer or a polypropylene fiber layer, and both the glass fiber layer and the polypropylene fiber layer have high strength, excellent impact resistance and certain heat preservation and insulation effects; the strength, the impact resistance and the heat insulation property of the pipe body 1 are improved by using the glass fiber or the polypropylene fiber; the glass fiber and the polypropylene fiber are also heat-resistant and corrosion-resistant materials, so that the heat-resistant and corrosion-resistant performances of the pipe body 1 are improved. The chemical fiber layer 5 is spirally wound, so that the stress of the chemical fiber is relatively uniform, the strength of the chemical fiber layer 5 is improved, and the strength of the pipe body 1 is further improved. The outer layer of the chemical fiber layer 5 is coated with a layer of static conductive plastic, and the static conductive plastic coated on the outer layer of the chemical fiber layer 5 is also a polymer plastic with antistatic property; the static electricity gathered by the polymer plastic inner layer 2 and the polymer plastic middle layer 4 is conducted to the polymer plastic outer layer 6 through the static electricity conducting plastic coated on the outer layer of the chemical fiber layer 5, and then the static electricity of the polymer plastic outer layer 6 is eliminated through the pipe body grounding device, so that the possibility that the static electricity gathers on the polymer plastic inner layer 2 and the polymer plastic middle layer 4 is reduced, and the antistatic performance of the pipe body 1 is further improved.

Referring to fig. 2 and 3, the connecting structure of the multilayer composite high-strength PE pipe comprises the multilayer composite high-strength PE pipe, a pipe fitting body 7, a resistance wire 8 and a binding post 9. The two ends of the pipe fitting body 7 are arranged in an opening manner, and the pipe fitting body 7 is arranged outside the pipe body 1; the resistance wire 8 is arranged on the inner wall of the pipe fitting body 7; the terminal 9 is arranged on the outer wall of the pipe fitting body 7, the terminal 9 is electrically connected with the resistance wire 8, and the terminal 9 is fixedly connected with the pipe fitting body 7. When the two sections of pipe bodies 1 need to be connected together, a worker places one ends of the two sections of pipe bodies 1 in the pipe body 7, then the worker connects the wiring terminals 9 with a power supply, so that the resistance wires 8 generate heat, the resistance wires 8 generate heat to melt the pipe body 7, and after the pipe body 7 is cooled, the melted part of the pipe body 7 is fused with the two sections of pipe bodies 1, so that the two sections of pipe bodies 1 are connected.

The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims

1. The multilayer composite high-strength PE pipe is characterized by comprising a pipe body (1), wherein the pipe body (1) comprises a polymer plastic inner layer (2), a mesh steel belt layer (3), a polymer plastic middle layer (4), a chemical fiber layer (5) and a polymer plastic outer layer (6) from inside to outside.

2. The multilayer composite high strength PE pipe according to claim 1, characterized in that the inner polymeric plastic layer (2) consists of a polymeric plastic with antistatic properties.

3. The multilayer composite high strength PE pipe according to claim 1, characterized in that the polymer plastic intermediate layer (4) is composed of a polymer plastic with antistatic properties.

4. The multilayer composite high strength PE pipe according to claim 1 or 2, characterized in that the chemical fiber layer (5) comprises a glass fiber layer or a polypropylene fiber layer.

5. The multilayer composite high strength PE pipe according to claim 4, wherein the chemical fiber layer (5) is spirally wound.

6. The multilayer composite high strength PE pipe according to claim 5, wherein the outer layer of the chemical fiber layer (5) is coated with a layer of static conductive plastic.

7. The multilayer composite high strength PE pipe according to claim 1, characterized in that the polymeric plastic outer layer (6) is composed of a polymeric plastic having flame retardant antistatic properties.

8. A connecting structure of a multilayer composite high-strength PE pipe comprising the multilayer composite high-strength PE pipe according to any one of claims 1 to 7, characterized by further comprising:

the pipe fitting body (7) is provided with openings at two ends and is arranged outside the pipe body (1);

the resistance wire (8) is arranged on the inner wall of the pipe fitting body (7); and the number of the first and second groups,

the binding post (9) is arranged on the outer wall of the pipe fitting body (7), is electrically connected with the resistance wire (8) and is connected with the pipe fitting body (7).