Aramid pressurizing adhesive composite pipe

Abstract

The utility model discloses an aramid supercharged adhesive composite pipe, which relates to the technical field of pipeline material conveying and comprises an inner pipe layer and an outer pipe layer, the inner pipe layer and the outer pipe layer form a tubular structure, a supercharged layer is adhered between the inner pipe layer and the outer pipe layer through hot melt adhesive, and the supercharged layer comprises a framework layer, a protective layer, a flexible mounting belt layer and a tensile layer; the number of the protective layers, the number of the flexible installation belt layers and the number of the tensile layers are all two, the two protective layers are arranged on the two sides of the framework layer through hot melt adhesive, the two flexible installation belt layers are arranged on the other sides of the two protective layers through hot melt adhesive, and the two tensile layers are arranged on the other sides of the two flexible installation belt layers through hot melt adhesive. An anti-corrosion layer is arranged on the inner wall of the inner pipe layer, and a temperature-resistant layer is arranged on the outer wall of the outer pipe layer; the heat resistance, the impact strength, the corrosion resistance, the compression resistance and the tensile strength of the composite pipe are integrally enhanced, so that the composite pipe is not easy to damage, and the safe usability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline material transportation, in particular to an aramid pressurized adhesive composite pipe. Background Art

[0002] In the process of material transportation, especially energy transportation, pipeline transportation is the main mode of transportation;

[0003] With the development of material technology, composite pipes are increasingly used. Composite pipes have excellent flexibility and are suitable for long-distance buried water supply and gas pipeline systems. The pipe fittings used in wire mesh skeleton polyethylene composite pipes are polyethylene electric fusion pipe fittings. When connecting, the heating element inside the pipe fittings is used to melt the outer plastic layer of the pipe with the inner plastic layer of the pipe fittings, so that the pipe and the pipe fittings are reliably connected together.

[0004] However, the existing composite pipes can withstand greater pressure, but since most of the skeletons are wire mesh structures, the pressure they can withstand is limited, which can cause damage to the pipeline, etc., which increases safety hazards for pipeline construction workers. At the same time, this type of pipeline will have problems such as poor stability and susceptibility to corrosion during use. Utility Model Content

[0005] The utility model aims to provide an aramid pressurized adhesive composite pipe, which can enhance the heat resistance, impact resistance, compression resistance and tensile strength of the composite pipe as a whole, make the composite pipe less susceptible to damage, and increase safety in use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aramid pressurized adhesive composite pipe, comprising an inner pipe layer and an outer pipe layer, the inner pipe layer and the outer pipe layer forming a tubular structure, a pressurized layer is bonded between the inner pipe layer and the outer pipe layer by hot-melt adhesive, the pressurized layer comprises a skeleton layer, a protective layer, a flexible mounting tape layer, and a tensile layer; the protective layer, the flexible mounting tape layer and the tensile layer are each provided with two layers, the two protective layers are arranged on both sides of the skeleton layer by hot-melt adhesive, the two flexible mounting tape layers are respectively arranged on the other side of the two protective layers by hot-melt adhesive, and the two tensile layers are respectively arranged on the other side of the two flexible mounting tape layers by hot-melt adhesive; an anti-corrosion layer is arranged on the inner wall of the inner pipe layer, and a temperature-resistant layer is arranged on the outer wall of the outer pipe layer.

[0007] In order to enhance the corrosion resistance and fire resistance of the pipeline, as a preferred aramid pressurized adhesive composite pipe of the utility model, the anti-corrosion layer is PE heat shrinkable material, and the temperature-resistant layer is mineral wool.

[0008] In order to improve the heat resistance and impact resistance of the composite pipe, as a preferred aramid pressurized adhesive composite pipe of the utility model, the protective layer is a polystyrene layer.

[0009] In order to reduce the impact force of the pipeline, as a preferred embodiment of the aramid pressurized adhesive composite pipe of the utility model, the flexible installation belt layer is a nylon installation belt layer.

[0010] In order to improve the compressive and tensile strengths of the composite pipe, as a preferred aramid pressurized adhesive composite pipe of the utility model, the tensile layer is an aramid line layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model arranges a pressurization layer between an inner tube layer and an outer tube layer, and the pressurization layer comprises a skeleton layer, a protective layer, a flexible installation belt layer and a tensile layer, the protective layer is a polystyrene layer reinforced with glass fiber, the flexible installation belt layer and the tensile layer are respectively a nylon installation belt layer and an aramid wire layer; the heat resistance, impact resistance, compression resistance and tensile strength of the composite pipe are enhanced as a whole, the composite pipe is not easily damaged, the safety of use is increased, and at the same time, the composite pipe has good corrosion resistance and fire resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the pressurization layer of the utility model;

[0015] Figure 3 for Figure 1 Schematic diagram of the AA structure.

[0016] In the figure: 1. Inner tube layer; 2. Outer tube layer; 3. Pressurization layer; 4. Skeleton layer; 5. Protective layer; 6. Flexible mounting belt layer; 7. Tensile layer; 8. Anti-corrosion layer; 9. Heat-resistant layer. DETAILED DESCRIPTION

[0017] See also Figures 1 to 3 , an aramid pressurized adhesive composite pipe, comprising an inner pipe layer 1 and an outer pipe layer 2, the inner pipe layer 1 and the outer pipe layer 2 form a tubular structure, a pressurized layer 3 is bonded between the inner pipe layer 1 and the outer pipe layer 2 by hot melt adhesive, the pressurized layer 3 comprises a skeleton layer 4, a protective layer 5, a flexible installation belt layer 6, and a tensile layer 7; the protective layer 5, the flexible installation belt layer 6 and the tensile layer 7 are each provided with two layers, the two protective layers 5 are arranged on both sides of the skeleton layer 4 by hot melt adhesive, the two flexible installation belt layers 6 are respectively arranged on the other side of the two protective layers 5 by hot melt adhesive, and the two tensile layers 7 are respectively arranged on the other side of the two flexible installation belt layers 6 by hot melt adhesive;

[0018] The protective layer 5 is a polystyrene layer; the flexible mounting belt layer 6 is a nylon mounting belt layer; the tensile layer 7 is an aramid wire layer;

[0019] An anti-corrosion layer 8 is provided on the inner wall of the inner tube layer 1, and a heat-resistant layer 9 is provided on the outer wall of the outer tube layer 2; the anti-corrosion layer 8 is a PE heat-shrinkable material, and the heat-resistant layer 9 is mineral wool.

[0020] The specific working principle of the utility model is:

[0021] The pressurization layer 3 is arranged between the inner tube layer 1 and the outer tube layer 2, the skeleton layer 4 increases the pressure strength of the pipeline, and the protective layer 5 is a polystyrene layer reinforced with glass fiber, which greatly improves the heat resistance and impact resistance of the pipeline. The flexible installation belt layer 6 and the tensile layer 7 are respectively made of nylon installation belt layer and aramid wire layer, and both the nylon installation belt layer and the aramid wire layer can protect the pipe sleeve. The nylon installation belt layer has good impact resistance and can absorb the impact and vibration energy of the composite pipe, providing additional protection for the composite pipe to prevent it from being damaged by external impact. The tensile strength and elasticity of the aramid line layer are outstanding; at the same time, the skeleton layer 4, the protective layer 5, the flexible installation belt layer 6 and the tensile layer 7 are bonded by hot melt adhesive to avoid stratification and ensure the stability of the composite pipe adhesion; the compression and tensile strength of the pipe body are strengthened as a whole, making the composite pipe less susceptible to damage and increasing safety; the anti-corrosion layer 8 adopts PE heat shrinkable material, which enhances the anti-corrosion sealing and waterproof properties of the inner pipe layer 1; the temperature-resistant layer 9 is mineral wool, which is not only heat-resistant but also has good fire resistance;

[0022] The inner tube layer 1 and the outer tube layer 2 of the utility model are both made of aramid fiber, which has the characteristics of high strength, high modulus, high temperature resistance, corrosion resistance, etc.

[0023] The thickness of the protective layer 5 of the utility model is 0.6mm-0.9mm, which can improve the heat insulation, thermal insulation and moisture-proof effect of the composite pipe; the thickness of the flexible installation belt layer 6 is 0.1mm-0.2mm; the thickness of the tensile layer 7 is 0.2mm-0.3mm.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aramid pressurized adhesive composite pipe, comprising an inner pipe layer (1) and an outer pipe layer (2), wherein the inner pipe layer (1) and the outer pipe layer (2) form a tubular structure, characterized in that: A boosting layer (3) is bonded between the inner tube layer (1) and the outer tube layer (2) by hot-melt adhesive, and the boosting layer (3) comprises a skeleton layer (4), a protective layer (5), a flexible mounting tape layer (6), and a tensile layer (7); the protective layer (5), the flexible mounting tape layer (6), and the tensile layer (7) are each provided with two layers, the two layers of the protective layer (5) are arranged on both sides of the skeleton layer (4) by hot-melt adhesive, the two layers of the flexible mounting tape layer (6) are respectively arranged on the other side of the two layers of the protective layer (5) by hot-melt adhesive, and the two layers of the tensile layer (7) are respectively arranged on the other side of the two layers of the flexible mounting tape layer (6) by hot-melt adhesive; An anti-corrosion layer (8) is provided on the inner wall of the inner tube layer (1), and a temperature-resistant layer (9) is provided on the outer wall of the outer tube layer (2).

2. The aramid pressurized adhesive composite pipe according to claim 1, characterized in that: The anti-corrosion layer (8) is made of PE heat shrinkable material, and the temperature-resistant layer (9) is made of mineral wool.

3. The aramid pressurized adhesive composite pipe according to claim 1, characterized in that: The protective layer (5) is a polystyrene layer.

4. The aramid pressurized adhesive composite pipe according to claim 1, characterized in that: The flexible mounting belt layer (6) is a nylon mounting belt layer.

5. The aramid pressurized adhesive composite pipe according to claim 1, characterized in that: The tensile layer (7) is an aramid fiber layer.

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