CN213776644U

CN213776644U - Composite reinforced polyethylene pipe

Info

Publication number: CN213776644U
Application number: CN202022443899.8U
Authority: CN
Inventors: 陈心一; 陈鸿梅; 郦萍; 梁木丹
Original assignee: Zhejiang Maple Leaf Pipe Industry Polytron Technologies Inc
Current assignee: Zhejiang Maple Leaf Pipe Industry Polytron Technologies Inc
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-23
Anticipated expiration: 2030-10-28

Abstract

The utility model provides a compound enhancement mode polyethylene pipe, including compound outer tube, compound inner tube and enhancement layer, be equipped with first protective layer and second protective layer on the outer wall of compound outer tube and the inner wall of compound inner tube respectively, just the enhancement layer is located between compound outer tube and the compound inner tube, the enhancement layer includes titanium alloy net, the inboard of titanium alloy net is connected through the outer wall bonding of adhesion layer with compound inner tube, the fixed parcel in the outside of titanium alloy net has the polyurethane foaming layer, the outside on polyurethane foaming layer is inlayed and is equipped with glass fiber net, glass fiber net's the outside is connected with the insulating layer through sticky bonding. The utility model discloses the effect that titanium alloy net, glass fiber net, polyurethane foam layer and the insulating layer that sets up still have the support body when improving tubular product bulk strength and weatherability can protect tubular product, and can improve the stretch-proofing nature of tubular product through glass fiber net, has reduced the cracked possibility of tubular product.

Description

Composite reinforced polyethylene pipe

Technical Field

The utility model relates to a technical field of polyethylene pipe specifically is a compound enhancement mode polyethylene pipe.

Background

In the prior art, a polyethylene pipe is mostly used for conveying fluid, when a long-distance conveying task is performed, not only the resistance of the pipe to the environment needs to be considered, but also the change of the fluid property caused by the change of the environment can cause burden to the pipe, for example, the pipe breakage phenomenon caused by the overhigh thermal expansion coefficient of the conveyed liquid occurs at all times, so that the strength and the environmental resistance of the polyethylene pipe are necessary to be enhanced.

Therefore, there is a need to develop a composite reinforced polyethylene pipe, which can improve the strength and weather resistance of the polyethylene pipe and reduce the possibility of pipe rupture.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a compound enhancement mode polyethylene pipe for solve the technical problem who proposes in the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a compound enhancement mode polyethylene pipe, includes compound outer tube, compound inner tube and enhancement layer, be equipped with first protective layer and second protective layer on the outer wall of compound outer tube and the inner wall of compound inner tube respectively, just the enhancement layer is located between compound outer tube and the compound inner tube, the enhancement layer includes titanium alloy net, the inboard outer wall bonding connection through adhesion layer and compound inner tube of titanium alloy net, the fixed parcel in the outside of titanium alloy net has the polyurethane foaming layer, the outside on polyurethane foaming layer is inlayed and is equipped with glass fiber net, glass fiber net's the outside is connected with the insulating layer through sticky bonding, the outer wall of insulating layer is connected through sticky and the inner wall bonding of compound outer tube.

Preferably, the first protective layer comprises a polyurethane heat-insulating layer, a waterproof layer and an anti-oxidation layer from inside to outside in sequence, and the inner side and the outer side of the polyurethane heat-insulating layer are respectively bonded and connected with the composite outer pipe and the waterproof layer through adhesion.

Preferably, the second protective layer is composed of an isolation layer and a corrosion-resistant layer from outside to inside in sequence.

Preferably, the thickness of the oxidation resistant layer and the corrosion resistant layer is 1.8 mm-3 mm.

Preferably, the thickness of the heat insulation layer is 10 mm-50 mm.

Preferably, the mesh number of the titanium alloy net is 200-400.

Preferably, the reinforcing layer, the first protective layer and the second protective layer are all tubular.

Compared with the prior art, the beneficial effects of the utility model are that:

the titanium alloy net, the glass fiber net, the polyurethane foaming layer and the heat insulation layer which are arranged in the utility model have the function of supporting the pipe body while improving the overall strength and the weather resistance of the pipe, can protect the pipe, can improve the tensile resistance of the pipe through the glass fiber net, and reduces the possibility of breakage of the pipe; the heat insulation performance of the pipe body can be improved through the polyurethane heat insulation layer, water and oxygen can be effectively isolated through the waterproof layer and the anti-oxidation layer, the aging of the polyurethane heat insulation layer can be slowed down, and the service life is prolonged; the isolating layer is made of glass fiber gridding cloth and is used for increasing the strength of the composite inner pipe and effectively reducing the possibility of cracking of the composite inner pipe, the corrosion-resistant layer can be a fusion bonding epoxy corrosion-resistant coating, and the glass fiber gridding cloth has good corrosion resistance and aging resistance and strong weather resistance in various environments such as buried, overhead and underwater environments.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the structure of the reinforcing layer of the present invention;

fig. 3 is a cross-sectional view of the first protective layer structure of the present invention;

FIG. 4 is a cross-sectional view of a second protective layer structure of the present invention;

fig. 5 is an enlarged view of region a in fig. 1.

In the figure: 1. compounding an outer pipe; 2. compounding an inner pipe; 3. an enhancement layer; 31. an adhesion layer; 32. a titanium alloy mesh; 33. a polyurethane foam layer; 34. a glass fiber web; 35. a thermal insulation layer; 4. a second protective layer; 41. an isolation layer; 42. a corrosion-resistant layer; 5. a first protective layer; 51. a polyurethane heat-insulating layer; 52. a waterproof layer; 53. and (4) an anti-oxidation layer.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the embodiment, referring to fig. 1, 2 and 5, a composite reinforced polyethylene pipe includes a composite outer pipe 1, a composite inner pipe 2 and a reinforcing layer 3, the composite outer pipe 1 and the composite inner pipe 2 are polyethylene composite pipes and have certain strength, a first protective layer 5 and a second protective layer 4 are respectively disposed on the outer wall of the composite outer pipe 1 and the inner wall of the composite inner pipe 2, the reinforcing layer 3 is located between the composite outer pipe 1 and the composite inner pipe 2, the reinforcing layer 3 includes a titanium alloy mesh 32, the titanium alloy mesh 32 has the advantages of high strength, good thermal strength, good corrosion resistance, good low temperature performance and light specific gravity, the inner side of the titanium alloy mesh 32 is bonded and connected with the outer wall of the composite inner pipe 2 through an adhesion layer 31, the adhesion layer 31 can adopt adhesives such as hot melt adhesive and epoxy resin, the outer side of the titanium alloy mesh 32 is fixedly wrapped with a polyurethane foam layer 33, the outer side of the polyurethane foaming layer 33 is embedded with a glass fiber net 34, the outer side of the glass fiber net 34 is connected with a heat insulation layer 35 through adhesive bonding, the thickness of the heat insulation layer 35 is 10 mm-50 mm, the heat insulation layer 35 can be made of glass fiber, aerogel felt, phenolic foam and other heat insulation materials, the heat insulation performance is good, the weather resistance of the pipe is improved, the outer wall of the heat insulation layer 35 is connected with the inner wall of the composite outer pipe 1 through adhesive bonding, the mesh number of the titanium alloy net 32 is 200-400, the reinforcement layer 3, the first protection layer 5 and the second protection layer 4 are all tubular, the arranged titanium alloy net 32 and the glass fiber net 34 have the function of supporting the pipe body and protecting the pipe while improving the overall strength and the weather resistance of the pipe, in addition, the titanium alloy net 32 also has the advantages of good corrosion resistance, good thermal strength and light specific gravity, and not only improves the weather resistance of the pipe body, the weight of the pipe body is reduced; the tensile resistance of the pipe is improved through the glass fiber net 34, the possibility of pipe breakage can be reduced, the polyurethane foam layer 33 and the heat insulation layer 35 have heat insulation functions, and the weather resistance of the pipe is further improved.

In the embodiment, referring to fig. 2, 3 and 4, the first protective layer 5 is sequentially composed of a polyurethane insulating layer 51, a waterproof layer 52 and an oxidation resistant layer 53 from inside to outside, the inner side and the outer side of the polyurethane insulating layer 51 are respectively bonded with the composite outer pipe 1 and the waterproof layer 52 by adhesion, the thermal insulation performance of the pipe body can be improved by the polyurethane insulating layer 51, the waterproof layer 52 can be made of PP, tinfoil and other materials, the oxidation resistant layer 53 can effectively isolate water and oxygen by matching with the water and the oxygen, the aging of the polyurethane insulating layer 51 can be slowed down, the service life can be prolonged, the second protective layer 4 is sequentially composed of an isolation layer 41 and an corrosion resistant layer 42 from outside to inside, the isolation layer 41 is made of fiberglass mesh fabric, the fiberglass mesh fabric is used for increasing the strength of the composite inner pipe 2, the possibility of cracking of the composite inner pipe 2 can be effectively reduced, and the corrosion resistant layer 42 can be made of fusion bonded epoxy powder paint, the fusion bonded epoxy anticorrosive coating has good corrosion resistance and aging resistance and strong weather resistance in various buried, overhead, underwater and other environments, and the thicknesses of the oxidation resistant layer 53 and the corrosion resistant layer 42 are both 1.8-3 mm.

The utility model discloses a concrete operation as follows:

the composite outer pipe 1 and the composite inner pipe 2 are polyethylene composite pipes and have certain strength, the arranged titanium alloy mesh 32 and the arranged glass fiber mesh 34 have the function of supporting the pipe body while improving the overall strength and the weather resistance of the pipe and can protect the pipe, in addition, the titanium alloy mesh 32 also has the advantages of good corrosion resistance, good heat strength and light specific gravity, the weather resistance of the pipe body is improved, and the weight of the pipe body is reduced; the tensile resistance of the pipe is improved through the glass fiber net 34, the weather resistance of the pipe is effectively enhanced, the possibility of breakage of the pipe can be reduced, and the polyurethane foam layer 33 and the heat insulation layer 35 have heat insulation and heat insulation functions, so that the weather resistance of the pipe is further improved; the heat preservation and heat insulation performance of the pipe body can be improved through the polyurethane heat preservation layer 51, the waterproof layer 52 can be made of PP, tinfoil and other materials, the anti-oxidation layer 53 can be matched to effectively isolate water and oxygen, the aging of the polyurethane heat preservation layer 51 can be slowed down, the service life is prolonged, the isolation layer 41 is made of glass fiber gridding cloth and used for increasing the strength of the composite inner pipe 2, the possibility of cracking of the composite inner pipe 2 can be effectively reduced, the corrosion-resistant layer 42 can be made of fusion bonding epoxy powder coating, the fusion bonding epoxy anti-corrosion coating has good corrosion resistance and aging resistance in various buried, overhead, underwater and other environments, and the weather resistance is strong.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. A composite reinforced polyethylene pipe comprises a composite outer pipe (1), a composite inner pipe (2) and a reinforcing layer (3), it is characterized in that the outer wall of the composite outer pipe (1) and the inner wall of the composite inner pipe (2) are respectively provided with a first protective layer (5) and a second protective layer (4), and the reinforcing layer (3) is positioned between the composite outer pipe (1) and the composite inner pipe (2), the reinforcing layer (3) comprises a titanium alloy net (32), the inner side of the titanium alloy net (32) is bonded and connected with the outer wall of the composite inner pipe (2) through an adhesion layer (31), the outer side of the titanium alloy net (32) is fixedly wrapped with a polyurethane foaming layer (33), a glass fiber net (34) is embedded at the outer side of the polyurethane foaming layer (33), the outer side of the glass fiber net (34) is connected with a heat insulation layer (35) through gluing and bonding, the outer wall of the heat insulation layer (35) is bonded and connected with the inner wall of the composite outer pipe (1) through gluing.

2. The composite reinforced polyethylene pipe according to claim 1, wherein the first protective layer (5) is composed of a polyurethane insulating layer (51), a waterproof layer (52) and an anti-oxidation layer (53) from inside to outside in sequence, and the inner side and the outer side of the polyurethane insulating layer (51) are respectively bonded and connected with the composite outer pipe (1) and the waterproof layer (52) through gluing.

3. The composite reinforced polyethylene pipe according to claim 2, wherein the second protective layer (4) consists of a barrier layer (41) and a corrosion resistant layer (42) in that order from the outside to the inside.

4. A composite reinforced polyethylene pipe according to claim 3, wherein the thickness of the oxidation-resistant layer (53) and the corrosion-resistant layer (42) are both 1.8mm to 3 mm.

5. A composite reinforced polyethylene pipe according to claim 1, wherein the thickness of the insulation layer (35) is 10mm to 50 mm.

6. The composite reinforced polyethylene pipe according to claim 1, wherein the titanium alloy mesh (32) has a mesh number of 200 to 400.

7. A composite reinforced polyethylene pipe according to claim 1, wherein the reinforcement layer (3), the first protective layer (5) and the second protective layer (4) are all tubular.