CN215763742U

CN215763742U - Flame-retardant polyethylene flexible composite pipe

Info

Publication number: CN215763742U
Application number: CN202121650310.XU
Authority: CN
Inventors: 王跃胜; 韩会芹; 沈亮
Original assignee: HEBEI BAOSHI SPECIAL FLEXIBLE RUBBER CHEMICAL INDUSTRY CO LTD
Current assignee: HEBEI BAOSHI SPECIAL FLEXIBLE RUBBER CHEMICAL INDUSTRY CO LTD
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-02-08
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a flexible compound pipe of fire-retardant polyethylene, including first pipeline, first fire-retardant layer, the outside adhesion of first fire-retardant layer has high temperature resistant layer, high temperature resistant layer is the high temperature resistant dope layer, the outside adhesion of one side that first fire-retardant layer was kept away from on high temperature resistant layer has the protective layer, the protective layer is kept away from high temperature resistant layer one side and is adhered to have the compound pipe of polyethylene, the compound pipe of polyethylene keeps away from one side fixed first waterproof layer that is provided with of protective layer, one side that the compound pipe of polyethylene was kept away from to first waterproof layer is adhered to have first heat dissipation layer, first pipeline cover is equipped with the second pipeline, inside adhesion in proper order of second pipeline has fire-retardant layer of second, second waterproof layer, the outside adhesion of second waterproof layer has the second heat dissipation layer, the inside fixed a plurality of buffering crossbands that are provided with of protective layer, the buffering crossband is the sectional type. According to the utility model, the contact area between the heat dissipation layer and air is increased through the concave-convex surface of the heat dissipation layer, and the heat can be dissipated quickly through the chamber pipeline.

Description

Flame-retardant polyethylene flexible composite pipe

Technical Field

The utility model relates to the technical field of polyethylene composite pipelines, in particular to a flame-retardant polyethylene flexible composite pipe.

Background

The polyethylene composite pipe is made up by using two kinds of polyethylene resins with different densities and respectively using two extruders to plastify and melt them at the same time, then simultaneously extruding the molten material into a mould capable of forming composite pipe, and the formed pipe material is polyethylene composite pipe. In industrial and mining enterprises, the composite pipe can be used for replacing a steel pipe and is used for conveying pipes with corrosive media such as oil, gas and the like or pipelines for mine ventilation and the like.

However, most of the existing polyethylene composite pipes have poor flame retardant and high temperature resistant effects, which affect the service life and cause resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flame-retardant polyethylene flexible composite pipe to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flexible compound pipe of fire-retardant polyethylene, includes first pipeline, first fire-retardant layer, the outside adhesion in one side that first fire-retardant layer was kept away from on first fire-retardant layer has the protective layer, the protective layer is kept away from on high temperature resistant layer one side adhesion and is had the compound pipe of polyethylene, the compound pipe of polyethylene keeps away from one side fixed and is provided with first waterproof layer, the compound pipe of polyethylene is kept away from on one side of first waterproof layer adhesion has first heat dissipation layer, first pipeline cover is equipped with the second pipeline, inside adhesion in proper order of second pipeline has fire-retardant layer, second waterproof layer, the outside adhesion of second waterproof layer has the second heat dissipation layer.

Preferably, a plurality of buffering crossbands are fixedly arranged inside the protective layer, the buffering crossbands are of a sectional type, a plurality of semicircular crossbands are fixedly arranged on the outer surface of each buffering crossband, and the protective layer and the buffering crossbands are made of rubber materials.

Preferably, the first flame-retardant layer and the second flame-retardant layer are both made of flame-retardant materials, and the first waterproof layer and the second waterproof layer are both made of polyurethane layers.

Preferably, the length of the second pipeline is smaller than that of the first pipeline, and the second pipeline is adhered to the outside of the first pipeline in a segmented mode.

Preferably, first heat dissipation layer and second heat dissipation layer are the polyethylene material, first heat dissipation layer and second heat dissipation in situ portion all include auxiliary layer, shell fragment and wearing layer, the shell fragment is fixed to be set up in the auxiliary layer, auxiliary layer and the first waterproof layer outside surface adhesion in the first heat dissipation layer, auxiliary layer and the second waterproof layer outside surface adhesion in the second heat dissipation layer.

Preferably, the outer surfaces of the first pipeline and the second pipeline are both concave-convex surfaces, and one end of the second pipeline is trapezoidal.

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

1. the buffering transverse strip is arranged to prevent the pipeline from being damaged due to larger flow when liquid or gas is conveyed inside the pipeline, the buffering effect is also played to protect the pipeline from being damaged due to larger pressure when external pressure is applied, the heat dissipation effect of the first heat dissipation layer is realized to prevent the pipeline from being damaged due to high temperature to cause potential safety hazards when the temperature of the gas or liquid conveyed inside the pipeline is higher, and meanwhile, the elastic sheet inside the first heat dissipation layer can play a buffering effect when the pipeline is extruded so as to protect the pipeline;

2. the heat dissipation device is also provided with a second pipeline sleeved with the first pipeline, the heat dissipation layer is arranged in the second pipeline, the heat dissipation layer not only assists in heat dissipation, but also plays a role in buffering, the concave-convex surfaces arranged on the outer surfaces of the first pipeline and the second pipeline increase the contact area with air, so that the pipelines can dissipate heat better, and one end of the second pipeline is trapezoidal, so that the influence of particle dust accumulated in the air by the second pipeline on the appearance is prevented.

Drawings

FIG. 1 is a front sectional view of a flame retardant polyethylene flexible composite pipe according to the present invention;

FIG. 2 is a schematic view of a protective layer structure of a flame-retardant flexible polyethylene composite pipe according to the present invention;

FIG. 3 is a schematic side sectional view of a second pipe of the flame retardant flexible polyethylene composite pipe of the present invention;

fig. 4 is a schematic structural view of a first heat dissipation layer of the flame-retardant flexible polyethylene composite pipe according to the present invention.

In the figure: 1. a first flame retardant layer; 2. a high temperature resistant layer; 3. a protective layer; 4. a polyethylene composite pipe; 5. a first conduit; 6. a first waterproof layer; 7. a first heat dissipation layer; 8. buffering the horizontal bar; 9. a concave-convex surface; 10. a wear layer; 11. an auxiliary layer; 12. a spring plate; 13. a second flame retardant layer; 14. a second waterproof layer; 15. a second heat dissipation layer; 16. a second conduit.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a flexible compound pipe of fire-retardant polyethylene, includes first pipeline 5, first fire-retardant layer 1, the outside bonding of first fire-retardant layer 1 has high temperature resistant layer 2, high temperature resistant layer 2 is the high temperature resistant dope layer, the outside bonding of one side that first fire-retardant layer 1 was kept away from to high temperature resistant layer 2 has protective layer 3, protective layer 3 is kept away from high temperature resistant layer 2 one side bonding and is had polyethylene composite pipe 4, the fixed first waterproof layer 6 that is provided with in one side that protective layer 3 was kept away from to polyethylene composite pipe 4 is kept away from to polyethylene composite pipe 4, one side bonding that polyethylene composite pipe 4 was kept away from to first waterproof layer 6 has first

heat dissipation layer

7, 5 covers of first pipeline are equipped with

second pipeline

16, 16 inside bonding in proper order of second pipeline has fire-retardant layer 13, second waterproof layer 14, 14 outside bonding of second waterproof layer 14 has second heat dissipation layer 15.

The inside fixed a plurality of buffering horizontal stripes 8 that are provided with of protective layer 3, buffering horizontal stripe 8 is the sectional type, 8 external surface fixings of buffering horizontal stripe are provided with a plurality of semicircle horizontal stripes, protective layer 3 and buffering horizontal stripe 8 are rubber materials, and buffering horizontal stripe 8 saves certain cost for the sectional type, and rubber has better effect protection pipeline that draws to rise.

First fire-retardant layer 1 and the fire-retardant layer 13 of second are fire-retardant material, and first waterproof layer 6 and second waterproof layer 14 are the polyurethane layer, better prevention infiltration phenomenon and fire-retardant effect.

The length of the second pipeline 16 is less than that of the first pipeline 5, the second pipeline 16 is adhered to the outside of the first pipeline 5 in a sectional mode, and the length of the second pipeline 16 is less than that of the first pipeline 5 in a sectional mode, so that the cost is saved, the heat dissipation and the flame retardance are better, and the heat dissipation and the flame retardance are better.

First heat dissipation layer 7 and second heat dissipation layer 15 are the polyethylene material, first heat dissipation layer 7 and second heat dissipation layer 15 are inside all including auxiliary layer 11, shell fragment 12 and wearing layer 10, shell fragment 12 is fixed to be set up inside auxiliary layer 11, auxiliary layer 11 and the 6 outside surface adhesion of first waterproof layer in the first heat dissipation layer 7, auxiliary layer 11 and the 14 outside surface adhesion of second waterproof layer in the second heat dissipation layer 15 play and dash fire-retardant and buffering's effect more.

The external surfaces of the first pipeline 5 and the second pipeline 16 are both concave-convex surfaces 9, and one end of the second pipeline 16 is in a trapezoid shape, so that the adhesion of particle dust in air is prevented.

The working principle is as follows: when the temperature is higher for the liquid or gas temperature of pipe transportation, the temperature passes through first fire-retardant layer 1, high temperature resistant layer 2, protective layer 3, first waterproof layer 6, first heat dissipation layer 7, when the pipeline receives external force extrusion, transmit first heat dissipation layer 7 and second heat dissipation layer 15 through protective layer 3 etc. one layer upon one layer and dispel the heat, through the concave-convex surface 9 with the increase of air area of contact in time dispel the heat better, protective layer 3, first heat dissipation layer 7 protects the pipeline with the effect that second heat dissipation layer 15 played the buffering simultaneously, buffering horizontal bar 8 and shell fragment 12 receive the effect that the deformation had arrived the buffering simultaneously.

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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents. The utility model is not limited by the technical scheme, and similar to the scheme, the utility model is also within the protection range.

Claims

1. The utility model provides a flexible compound pipe of fire-retardant polyethylene, includes first pipeline (5), first fire-retardant layer (1), its characterized in that: the first flame-retardant layer (1) is externally adhered with a high-temperature resistant layer (2), the high-temperature resistant layer (2) is a high-temperature resistant coating layer, a protective layer (3) is adhered to the outside of one side of the high temperature resistant layer (2) far away from the first flame retardant layer (1), one side of the protective layer (3) far away from the high temperature resistant layer (2) is adhered with a polyethylene composite pipe (4), a first waterproof layer (6) is fixedly arranged on one side of the polyethylene composite pipe (4) far away from the protective layer (3), a first heat dissipation layer (7) is adhered to one side of the first waterproof layer (6) far away from the polyethylene composite pipe (4), the first pipeline (5) is sleeved with a second pipeline (16), a second flame-retardant layer (13) and a second waterproof layer (14) are sequentially adhered inside the second pipeline (16), and a second heat dissipation layer (15) is adhered to the outside of the second waterproof layer (14).

2. The flame retardant polyethylene flexible composite pipe according to claim 1, wherein: the buffer structure is characterized in that a plurality of buffer transverse strips (8) are fixedly arranged inside the protective layer (3), the buffer transverse strips (8) are of a sectional type, a plurality of semicircular transverse strips are fixedly arranged on the outer surface of each buffer transverse strip (8), and the protective layer (3) and the buffer transverse strips (8) are made of rubber materials.

3. The flame retardant polyethylene flexible composite pipe according to claim 1, wherein: the first flame-retardant layer (1) and the second flame-retardant layer (13) are both made of flame-retardant materials, and the first waterproof layer (6) and the second waterproof layer (14) are both made of polyurethane layers.

4. The flame retardant polyethylene flexible composite pipe according to claim 3, wherein: the length of the second pipeline (16) is less than that of the first pipeline (5), and the second pipeline (16) is adhered to the outside of the first pipeline (5) in a segmented mode.

5. A flame retardant polyethylene flexible composite pipe according to claims 1, 3, characterized in that: first heat dissipation layer (7) and second heat dissipation layer (15) are the polyethylene material, first heat dissipation layer (7) and second heat dissipation layer (15) are inside all including auxiliary layer (11), shell fragment (12) and wearing layer (10), shell fragment (12) are fixed to be set up inside auxiliary layer (11), auxiliary layer (11) in first heat dissipation layer (7) and first waterproof layer (6) outside surface adhesion, auxiliary layer (11) in second heat dissipation layer (15) and second waterproof layer (14) outside surface adhesion.

6. The flame retardant polyethylene flexible composite pipe according to claim 3, wherein: the outer surfaces of the first pipeline (5) and the second pipeline (16) are both concave-convex surfaces (9), and one end of the second pipeline (16) is trapezoidal.