CN214699565U

CN214699565U - Anticorrosive heat retaining polyethylene jacket pipe

Info

Publication number: CN214699565U
Application number: CN202121267369.0U
Authority: CN
Inventors: 戴其琴
Original assignee: Qingdao Yixinde Plastic Co ltd
Current assignee: Qingdao Yixinde Plastic Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-12
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to the technical field of polyethylene jacket pipes, and discloses an anticorrosive and heat-insulating polyethylene jacket pipe, which solves the defect of poor heat-insulating effect existing in the long-term use process of the existing polyethylene jacket pipe, so that the use of the polyethylene jacket pipe has the problem of certain limitation, and comprises a polyethylene inner pipe and a protective jacket pipe, wherein the protective jacket pipe is positioned outside the polyethylene inner pipe; through being provided with the heat preservation, can insulate against heat and keep warm to the polyethylene jacket pipe, effectively reduced the environment to the influence of carrying the medium in the pipeline, in addition, the cavity setting of strengthening rib has further improved the heat preservation effect of polyethylene jacket pipe, and overall design is reasonable for the use of polyethylene jacket pipe has certain practicality.

Description

Anticorrosive heat retaining polyethylene jacket pipe

Technical Field

The utility model belongs to the technical field of the polyethylene jacket pipe, specifically be an anticorrosive heat retaining polyethylene jacket pipe.

Background

The polyurethane heat preservation is also called as a jacket pipe and is formed by a two-step method, and consists of a high-density polyethylene outer protective layer, a polyurethane rigid foam plastic pipe and a steel pipe; the jacket pipe is widely used for liquid and gas conveying pipe networks, chemical pipeline heat preservation engineering petroleum, chemical engineering, central heating and heating networks, central air-conditioning ventilation pipelines, municipal engineering and the like.

The existing polyethylene jacket pipe has the defect of poor heat preservation effect in the long-term use process, so that the use of the polyethylene jacket pipe has certain limitation.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a anticorrosive heat retaining polyethylene jacket pipe has the poor shortcoming of heat preservation effect in the long-term use of current polyethylene jacket pipe among the above-mentioned background art of effectual solution for the use of polyethylene jacket pipe has the problem of certain limitation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anticorrosive heat retaining polyethylene jacket pipe, includes polyethylene inner tube and protective casing, protective casing is located the outside of polyethylene inner tube, and the outside of polyethylene inner tube is equipped with the heat preservation, and the outside of heat preservation is equipped with the enhancement layer, and the outside of enhancement layer is equipped with the anticorrosive coating, and protective casing is located the outside of anticorrosive coating.

Preferably, the heat preservation layer comprises a rock wool layer and a pearl wool layer, and a polyurethane foam layer is filled between the rock wool layer and the pearl wool layer.

Preferably, the reinforcing layer comprises glass fiber mesh layers, reinforcing ribs are arranged between the glass fiber mesh layers at equal intervals, and the reinforcing ribs are of hollow isosceles trapezoid structures.

Preferably, the outside of rock wool layer and the inside of glass fiber net layer are the adhesion mutually, and the inside of pearl cotton layer and the outside of polyethylene inner tube are the adhesion mutually.

Preferably, the anticorrosive layer comprises a first anticorrosive layer and a second anticorrosive layer, the first anticorrosive layer is made of 3PE heat-shrinkable material, the second anticorrosive layer is made of ABS plastic, and the first anticorrosive layer is adhered to the glass fiber grid layer.

Preferably, the protective sleeve is composed of a cloth-sandwiched rubber layer and a butadiene-acrylonitrile rubber layer, and the butadiene-acrylonitrile rubber layer is adhered to the anti-corrosion layer.

Preferably, the exterior of the protective sleeve is sprayed with a teflon coating.

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

(1) in the work, the heat insulation layer is arranged, so that the heat insulation and preservation of the polyethylene jacket pipe can be realized, the influence of the environment on the conveying medium in the pipeline is effectively reduced, in addition, the hollow arrangement of the reinforcing ribs further improves the heat insulation effect of the polyethylene jacket pipe, the overall design is reasonable, and the use of the polyethylene jacket pipe has certain practicability;

(2) and in the work, through being provided with the anticorrosive coating, improved the anticorrosive effect of polyethylene jacket pipe, the setting of teflon coating on the protective casing pipe has effectively reduced the influence of environmental factor and external force factor to the jacket pipe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a schematic view of the reinforcement layer of the present invention;

fig. 3 is a perspective view of the reinforcing rib of the present invention.

In the figure: 1. a polyethylene inner tube; 2. a protective sleeve; 3. a heat-insulating layer; 4. a reinforcing layer; 5. an anticorrosive layer; 6. a rock wool layer; 7. a pearl cotton layer; 8. a polyurethane foam layer; 9. a fiberglass mesh layer; 10. reinforcing ribs; 11. a first anticorrosive layer; 12. a second anticorrosive layer; 13. a cloth sandwiched rubber layer; 14. a butadiene acrylonitrile rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, given by fig. 1 to 3, the utility model discloses a polyethylene inner tube 1 and protective casing 2, protective casing 2 are located the outside of polyethylene inner tube 1, and the outside of polyethylene inner tube 1 is equipped with heat preservation 3, and the outside of heat preservation 3 is equipped with enhancement layer 4, and the outside of enhancement layer 4 is equipped with anticorrosive coating 5, and protective casing 2 is located the outside of anticorrosive coating 5, and the setting of heat preservation 3 can insulate against heat to the polyethylene jacket pipe and keep warm, has effectively reduced the influence of environment to transport medium in the pipeline.

In the second embodiment, on the basis of the first embodiment, the heat preservation layer 3 comprises a rock wool layer 6 and a pearl wool layer 7, and a polyurethane foam layer 8 is filled between the rock wool layer 6 and the pearl wool layer 7, so that the polyethylene jacket pipe can be subjected to heat insulation, and the influence of the environment on a conveying medium in the pipeline is effectively reduced.

Third embodiment, on the basis of first embodiment, enhancement layer 4 includes glass fiber net check layer 9, and strengthening rib 10 is installed to the equidistance between the glass fiber net check layer 9, and strengthening rib 10 is inside hollow isosceles trapezoid structure, has increased the intensity of jacket pipe, has improved jacket pipe shock resistance, has improved the life of jacket pipe.

In the fourth embodiment, on the basis of the second embodiment, the outer part of the rock wool layer 6 is adhered to the inner part of the glass fiber mesh layer 9, and the inner part of the pearl wool layer 7 is adhered to the outer part of the polyethylene inner pipe 1, so that the tightness between the jacket pipe layers is increased.

Fifth embodiment, on the basis of the first embodiment, the anticorrosive layer 5 includes a first anticorrosive layer 11 and a second anticorrosive layer 12, the first anticorrosive layer 11 is made of a 3PE heat shrinkable material, the second anticorrosive layer 12 is made of ABS plastic, and the first anticorrosive layer 11 is adhered to the glass fiber mesh layer 9, so that the anticorrosive effect of the polyethylene jacket pipe is improved.

Sixth, on the basis of the fifth embodiment, the protective sleeve 2 is composed of the fabric rubber layer 13 and the butadiene acrylonitrile rubber layer 14, and the butadiene acrylonitrile rubber layer 14 is adhered to the second anti-corrosion layer 12, so that influences of environmental factors and external force factors on the jacket pipe are effectively reduced.

Seventh, on the basis of the first embodiment, the teflon coating is sprayed on the outer portion of the protective sleeve 2, so that the influence of environmental factors and external force factors on the jacket pipe is effectively reduced.

The working principle is as follows: the during operation, through being provided with heat preservation 3, can insulate against heat and keep warm to the polyethylene jacket pipe, effectively reduced the environment to the influence of in the pipeline transport medium, in addition, the cavity setting of strengthening rib 10 has further improved the heat preservation effect of polyethylene jacket pipe, and the setting of anticorrosive coating 5 has improved the anticorrosive effect of polyethylene jacket pipe, and the setting of teflon coating on the lag pipe 2 has effectively reduced the influence of environmental factor and external force factor to jacket pipe.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides an anticorrosive heat retaining polyethylene jacket pipe, includes polyethylene inner tube (1) and protective casing pipe (2), its characterized in that: the protective sleeve (2) is located outside the polyethylene inner pipe (1), the heat preservation layer (3) is arranged outside the polyethylene inner pipe (1), the reinforcing layer (4) is arranged outside the heat preservation layer (3), the anticorrosive layer (5) is arranged outside the reinforcing layer (4), and the protective sleeve (2) is located outside the anticorrosive layer (5).

2. The corrosion-resistant heat-insulating polyethylene jacket pipe as claimed in claim 1, wherein: the heat preservation layer (3) comprises a rock wool layer (6) and an EPE layer (7), and a polyurethane foam layer (8) is filled between the rock wool layer (6) and the EPE layer (7).

3. The corrosion-resistant heat-insulating polyethylene jacket pipe as claimed in claim 1, wherein: the reinforcing layer (4) comprises glass fiber mesh layers (9), reinforcing ribs (10) are arranged between the glass fiber mesh layers (9) at equal intervals, and the reinforcing ribs (10) are of hollow isosceles trapezoid structures.

4. The corrosion-resistant heat-insulating polyethylene jacket pipe as claimed in claim 2, wherein: the outside on rock wool layer (6) and the inside looks adhesion of glass fiber net layer (9), the inside of pearl cotton layer (7) and the outside looks adhesion of polyethylene inner tube (1).

5. The corrosion-resistant heat-insulating polyethylene jacket pipe as claimed in claim 1, wherein: the anti-corrosion layer (5) comprises a first anti-corrosion layer (11) and a second anti-corrosion layer (12), the first anti-corrosion layer (11) is made of 3PE heat-shrinkable materials, the second anti-corrosion layer (12) is made of ABS plastics, and the first anti-corrosion layer (11) is adhered to the glass fiber grid layer (9).

6. The corrosion-resistant heat-insulating polyethylene jacket pipe as claimed in claim 5, wherein: the protective sleeve (2) is composed of a cloth sandwiched rubber layer (13) and a butadiene acrylonitrile rubber layer (14), and the butadiene acrylonitrile rubber layer (14) is adhered to the second anticorrosive layer (12).

7. The corrosion-resistant heat-insulating polyethylene jacket pipe as claimed in claim 1, wherein: the outer part of the protective sleeve (2) is sprayed with a Teflon coating.