High-cold anti-freezing pipe

Abstract

The utility model relates to the technical field of anti -freezing pipe, concretely is a kind of high-cold anti -freezing pipe, including inner lining, the outside of inner lining is provided with first adhesive transition layer, the outside of first adhesive transition layer is provided with inner reinforcing layer, the outside of inner reinforcing layer is provided with main heat preservation layer, the outside of main heat preservation layer is provided with reflection layer, the outside of reflection layer is provided with anti -frost heave layer, the outside of anti -frost heave layer is provided with outer reinforcing layer, the outside of outer reinforcing layer is provided with second adhesive transition layer, the outside of second adhesive transition layer is provided with wear layer. The high-cold anti -freezing pipe solves the problem that the anti -freezing pipe of prior art has limited anti -freezing performance in extreme cold environment in actual use process, often appears the situation of burst damage, affects its service life.

Description

Technical Field

[0001] This utility model relates to the field of antifreeze pipe technology, specifically a high-altitude antifreeze pipe. Background Technology

[0002] Antifreeze pipes are special pipes or pipe components designed to prevent the medium inside the pipe from freezing, solidifying, or causing damage to the pipeline system due to low temperature. Their core function is to ensure that the medium can still flow normally in the pipeline in low temperature environment (usually below 0℃) through material selection, structural design, or additional devices, and to avoid safety accidents or functional failures caused by freezing expansion, rupture, or blockage.

[0003] However, existing antifreeze pipes have limited antifreeze performance in extremely cold environments during actual use, and often crack and break, affecting their service life. To address this problem, a high-altitude antifreeze pipe is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a high-altitude cold-resistant antifreeze pipe to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a high-altitude cold-resistant antifreeze pipe, comprising an inner lining layer, a first adhesive transition layer disposed outside the inner lining layer, an inner reinforcing layer disposed outside the first adhesive transition layer, a main insulation layer disposed outside the inner reinforcing layer, a reflective layer disposed outside the main insulation layer, an anti-freeze-swelling layer disposed outside the reflective layer, an outer reinforcing layer disposed outside the anti-freeze-swelling layer, a second adhesive transition layer disposed outside the outer reinforcing layer, and a wear-resistant layer disposed outside the second adhesive transition layer.

[0005] Preferably, the inner liner is an ultra-high molecular weight polyethylene layer.

[0006] Preferably, both the first adhesive transition layer and the second adhesive transition layer are special modified epoxy resin adhesive layers.

[0007] Preferably, the inner reinforcing layer is a high-strength carbon fiber or aramid fiber woven layer.

[0008] Preferably, the main insulation layer is a nano-aerogel felt or a vacuum insulation board roll layer.

[0009] Preferably, the reflective layer is an aluminized polyester film layer.

[0010] Preferably, the anti-freeze layer is a modified silicone rubber foam layer.

[0011] Preferably, the outer reinforcing layer is a vinyl ester resin layer, and the wear-resistant layer is a high-density polyethylene layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] The inner lining layer allows direct contact with the transported medium, providing excellent chemical inertness and corrosion resistance, preventing medium contamination of the pipeline or corrosion of the pipeline by the medium. The first adhesive transition layer ensures a strong and lasting chemical bond or physical adhesion between the inner lining layer and the inner reinforcement layer. The inner reinforcement layer provides extremely high strength-to-weight ratio and stiffness, supporting the pipeline structure. The main insulation layer utilizes the extremely low solid thermal conductivity and nanoporous structure of aerogel to suppress gas convection, or utilizes a vacuum environment to eliminate gas heat conduction and convection, achieving the most efficient passive insulation effect known to date. The reflective layer prevents external moisture from penetrating the insulation layer, avoiding moisture-induced failure of the insulation material.

[0014] By incorporating an anti-freezing layer, when the medium inside the pipe unexpectedly freezes and expands, or when the soil outside the pipe freezes and squeezes the pipe, this flexible foam layer absorbs the enormous volume expansion energy through compression deformation, protecting the rigid structural layer from damage. The outer reinforcement layer primarily bears external soil pressure, backfill impact, and construction loads. The second adhesive transition layer ensures a strong bond between the outer reinforcement layer and the outer sheath. The wear-resistant layer provides final protection against soil chemical corrosion, microbial erosion, moisture penetration, and frictional wear from backfill sand and gravel and construction equipment. This high-altitude cold-resistant pipe solves the problem that existing anti-freezing pipes have limited anti-freezing performance in extremely cold environments, frequently cracking and damaging themselves, thus affecting their service life. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a bottom view of the present invention;

[0017] Figure 3 This is a top sectional view of the present invention.

[0018] In the diagram: 1. Inner lining layer; 2. First adhesive transition layer; 3. Inner reinforcement layer; 4. Main insulation layer; 5. Reflective layer; 6. Anti-frost heave layer; 7. Outer reinforcement layer; 8. Second adhesive transition layer; 9. Wear-resistant layer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3 This utility model provides a technical solution: a high-altitude cold-resistant antifreeze pipe, comprising an inner lining layer 1, a first adhesive transition layer 2 disposed outside the inner lining layer 1, an inner reinforcing layer 3 disposed outside the first adhesive transition layer 2, a main insulation layer 4 disposed outside the inner reinforcing layer 3, a reflective layer 5 disposed outside the main insulation layer 4, an antifreeze layer 6 disposed outside the reflective layer 5, an outer reinforcing layer 7 disposed outside the antifreeze layer 6, a second adhesive transition layer 8 disposed outside the outer reinforcing layer 7, and a wear-resistant layer 9 disposed outside the second adhesive transition layer 8. The inner lining layer 1 allows direct contact with the transported medium, providing excellent chemical inertness and corrosion resistance, preventing medium contamination of the pipe or corrosion of the pipe by the medium. The first adhesive transition layer 2 ensures a strong and lasting chemical bond or physical adhesion between the inner lining layer 1 and the inner reinforcing layer 3. The inner reinforcing layer 3 provides an extremely high strength-to-weight ratio and rigidity, supporting the pipe. The pipe structure utilizes the extremely low solid thermal conductivity and nanoporous structure of aerogel to suppress gas convection, or eliminates gas heat conduction and convection through a vacuum environment, achieving the most efficient passive insulation effect known to date. The reflective layer 5 prevents external moisture from intruding into the insulation layer, avoiding moisture damage to the insulation material. The anti-freeze-swelling layer 6 absorbs the enormous volume expansion energy through compression deformation when the medium inside the pipe freezes and expands or when the soil outside the pipe freezes and squeezes the pipe, protecting the rigid structural layer from damage. The outer reinforcement layer 7 mainly bears the external soil pressure, backfill impact, construction load, etc. The second adhesive transition layer 8 ensures a strong bond between the outer reinforcement layer 7 and the outer sheath. The wear-resistant layer 9 provides final protection against soil chemical corrosion, microbial erosion, moisture penetration, and friction and wear from backfill sand and gravel and construction equipment.

[0021] In this embodiment, the inner lining layer 1 is an ultra-high molecular weight polyethylene layer, which can directly contact the transported medium, providing excellent chemical inertness and corrosion resistance, and preventing the medium from contaminating the pipeline or the pipeline from being corroded by the medium.

[0022] In this embodiment, both the first adhesive transition layer 2 and the second adhesive transition layer 8 are special modified epoxy resin adhesive layers, which ensure strong and durable chemical bonding or physical adhesion between the inner liner layer 1 and the inner reinforcing layer 3. The second adhesive transition layer 8 ensures strong adhesion between the outer reinforcing layer 7 and the outer sheath.

[0023] In this embodiment, the inner reinforcing layer 3 is a high-strength carbon fiber or aramid fiber woven layer, which provides an extremely high strength-to-weight ratio and stiffness to support the pipe structure.

[0024] In this embodiment, the main insulation layer 4 is a nano-aerogel felt or a vacuum insulation board roll layer. The aerogel’s extremely low solid thermal conductivity and nanoporous structure suppress gas convection, or the vacuum environment eliminates gas heat conduction and convection, achieving the most efficient passive insulation effect known to date.

[0025] In this embodiment, the reflective layer 5 is an aluminum-coated polyester film layer to prevent external moisture from penetrating the insulation layer and avoid the insulation material from becoming damp and failing.

[0026] In this embodiment, the anti-freezing layer 6 is a modified silicone rubber foam layer. When the medium inside the pipe freezes and expands unexpectedly or the soil outside the pipe freezes and expands and squeezes the pipe, the flexible foam layer absorbs the huge volume expansion energy through compression deformation, protecting the rigid structure layer from damage.

[0027] In this embodiment, the outer reinforcing layer 7 is a vinyl ester resin layer, and the wear-resistant layer 9 is a high-density polyethylene layer. The outer reinforcing layer 7 mainly bears external soil pressure, backfill impact, construction load, etc. The wear-resistant layer 9 provides final protection, resisting soil chemical corrosion, microbial erosion, moisture penetration, and friction and wear from backfill sand and gravel and construction equipment.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-altitude cold-resistant antifreeze pipe, comprising an inner lining layer (1), characterized in that: The inner lining layer (1) is provided with a first adhesive transition layer (2) on the outside, the first adhesive transition layer (2) is provided with an inner reinforcing layer (3) on the outside, the inner reinforcing layer (3) is provided with a main insulation layer (4) on the outside, the main insulation layer (4) is provided with a reflective layer (5) on the outside, the reflective layer (5) is provided with a frost heave layer (6) on the outside, the frost heave layer (6) is provided with an outer reinforcing layer (7) on the outside, the outer reinforcing layer (7) is provided with a second adhesive transition layer (8) on the outside, and the second adhesive transition layer (8) is provided with a wear-resistant layer (9) on the outside.

2. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: The inner lining (1) is an ultra-high molecular weight polyethylene layer.

3. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: Both the first adhesive transition layer (2) and the second adhesive transition layer (8) are special modified epoxy resin adhesive layers.

4. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: The inner reinforcing layer (3) is a high-strength carbon fiber or aramid fiber woven layer.

5. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: The main insulation layer (4) is a nano-aerogel felt or a vacuum insulation board roll layer.

6. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: The reflective layer (5) is an aluminum-coated polyester film layer.

7. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: The anti-freeze layer (6) is a modified silicone rubber foam layer.

8. The high-altitude cold-resistant antifreeze pipe according to claim 1, characterized in that: The outer reinforcing layer (7) is a vinyl ester resin layer, and the wear-resistant layer (9) is a high-density polyethylene layer.

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