High-strength metal plastic composite pipe

Abstract

The high-strength metal plastic composite pipe comprises a composite pipe body, a metal pipe is arranged outside the composite pipe body, an installation cavity is formed in an interlayer of the side wall of the metal pipe, an isolation layer is arranged in the installation cavity, a clamping pipe is bonded to the inner wall of the isolation layer, and a graphene heating film is installed on the inner wall of the clamping pipe. The composite pipe has the advantages that the graphene heating film is arranged on the clamping pipe, when the composite pipe body is used for conveying liquid in winter, the liquid in the plastic pipe can be heated by electrifying the graphene heating film, and the situation that the liquid freezes to reduce water flowing is avoided; when the liquid in the plastic pipe is heated by the graphene heating film, water vapor condensation caused by high temperature outside the plastic pipe and low temperature of the liquid in the plastic pipe can be prevented, and small water drops formed by the water vapor are prevented from being placed between the metal pipe and the plastic pipe to influence the firmness and tightness of connection between the metal pipe and the plastic pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipes, in particular to a high-strength metal-plastic composite pipe. Background Art

[0002] Composite pipes are pipes based on the composite structure of metal and thermoplastic plastics, and are formed by lining with plastics such as polypropylene or polyethylene, or by externally welding cross-linked polyethylene and other non-metallic materials, having the advantages of both metal pipes and non-metallic pipes.

[0003] In existing high-strength metal-plastic composite pipes, heating components are often provided inside the pipes in winter to prevent the water inside the pipes from freezing. However, due to the large temperature difference between the inside and outside of the plastic pipes, water vapor is easily condensed on the outer wall to form small water droplets, affecting the tightness of the connection between the plastic pipes and the metal pipes. Therefore, there is an urgent need for a new type of high-strength metal-plastic composite pipe to solve these problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is to provide a high-strength metal-plastic composite pipe that can prevent water vapor from leaking out according to the current situation of the existing technology.

[0006] (2) Technical Solutions

[0007] The utility model is realized through the following technical solutions: The utility model provides a high-strength metal-plastic composite pipe, including a composite pipe body. A metal pipe is arranged outside the composite pipe body. An installation cavity is formed in the interlayer on the side wall of the metal pipe. An isolation layer is arranged in the installation cavity. A clamping pipe is adhesively bonded to the inner wall of the isolation layer. A graphene heating film is installed on the inner wall of the clamping pipe. A plastic pipe is arranged on the inner wall of the metal pipe. An anti-seepage layer is coated on the outer wall of the plastic pipe. An anti-scaling layer is arranged on the inner wall of the plastic pipe.

[0008] Furthermore, the installation cavity is formed in the inner cavity of the metal pipe, and the installation cavity is adhesively bonded to the isolation layer.

[0009] By adopting the above technical solutions, the installation cavity can more conveniently install various components in the inner cavity of the metal pipe, and the installation cavity can more firmly fix the isolation layer.

[0010] Furthermore, the isolation layer is made of glass wool material, and the metal pipe is made of stainless steel material.

[0011] By adopting the above technical solutions, the isolation layer can more conveniently insulate the composite pipe body, avoiding heat loss when heating the composite pipe body.

[0012] Furthermore, the isolation layer is bonded to the clamping tube, and the clamping tube is made of PVC material.

[0013] By adopting the above technical solution, the isolation layer can fix the clamping tube more firmly, and the clamping tube can better prevent the isolation layer from directly contacting the graphene heating film, playing an insulating role.

[0014] Furthermore, the graphene heating film is laid on the inner wall of the clamping tube, and a wire is connected to the power terminal of the graphene heating film.

[0015] By adopting the above technical solution, the clamping tube can more conveniently install the graphene heating film in the metal tube. After the graphene heating film is powered on, it is convenient to heat the liquid in the plastic tube in winter to prevent the liquid from freezing and reducing the flow rate.

[0016] Furthermore, the metal tube is bonded to the plastic tube, and the plastic tube is made of polyethylene material.

[0017] By adopting the above technical solution, the metal tube can better fix the plastic tube, and the metal tube can better protect the plastic tube. The combination of the two can better improve the strength of the composite tube body.

[0018] Furthermore, the anti-seepage layer is applied to the outer wall of the plastic tube, and the anti-seepage layer is made of polyurethane coating material.

[0019] By adopting the above technical solution, the anti-seepage layer can prevent the plastic tube from leaking water vapor due to the temperature difference inside and outside, prevent the water vapor from leaking to the connection between the metal tube and the plastic tube, and avoid affecting the tightness of the connection between the metal tube and the plastic tube.

[0020] Furthermore, the anti-scaling layer is applied to the inner wall of the plastic tube, and the anti-scaling layer is made of a new type of nano-carbon composite coating.

[0021] By adopting the above technical solution, the anti-scaling layer can better protect the inner wall of the plastic tube and prevent scale from forming on the inner wall of the plastic tube when the liquid flows through for a long time.

[0022] (III) Beneficial Effects

[0023] The present utility model has the following beneficial effects compared with the prior art:

[0024] In order to solve the problem that in the process of using the existing high-strength metal-plastic composite pipe, due to the large temperature difference between the inside and outside of the plastic pipe, water vapor is easily condensed on the outer wall to form small water droplets, which affects the tightness of the connection between the plastic pipe and the metal pipe. The utility model sets a graphene heating film on the clamping pipe. When the composite pipe body is used to transport liquid in winter, the liquid in the plastic pipe can be heated by energizing the graphene heating film, avoiding the freezing of the liquid and reducing its water flow. By setting an anti-seepage layer on the outer wall of the plastic pipe, when the graphene heating film heats the liquid in the plastic pipe, it can prevent the condensation of water vapor caused by the high temperature outside the plastic pipe and the low temperature of the liquid inside the plastic pipe, and avoid the small water droplets formed by the water vapor being placed between the metal pipe and the plastic pipe, affecting the tightness of their connection. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a high-strength metal-plastic composite pipe described in the utility model;

[0026] Figure 2 is a left sectional view of a high-strength metal-plastic composite pipe described in the utility model.

[0027] The description of the reference numerals is as follows:

[0028] 1. Composite pipe body; 2. Metal pipe; 3. Installation cavity; 4. Isolation layer; 5. Clamping pipe; 6. Graphene heating film; 7. Plastic pipe; 8. Anti-seepage layer; 9. Anti-scaling layer. Detailed Embodiment

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0030] Such as Figure 1 - Figure 2As shown in the figure, a high-strength metal-plastic composite pipe in this embodiment includes a composite pipe body 1. A metal pipe 2 is arranged outside the composite pipe body 1. An installation cavity 3 is formed in the interlayer on the side wall of the metal pipe 2. The installation cavity 3 can facilitate the installation of various components in the inner cavity of the metal pipe 2, and can more firmly fix the isolation layer 4. An isolation layer 4 is arranged in the installation cavity 3. A clamping pipe 5 is adhesively bonded to the inner wall of the isolation layer 4. The isolation layer 4 can more firmly fix the clamping pipe 5. The clamping pipe 5 can better prevent the isolation layer 4 from directly contacting the graphene heating film 6, playing an insulating role. The graphene heating film 6 is installed on the inner wall of the clamping pipe 5. A plastic pipe 7 is arranged on the inner wall of the metal pipe 2. The metal pipe 2 can better fix the plastic pipe 7 and can better protect the plastic pipe 7. The combination of the two can better improve the strength of the composite pipe body 1. An anti-seepage layer 8 is coated on the outer wall of the plastic pipe 7. The anti-seepage layer 8 can prevent the plastic pipe 7 from leaking water vapor due to the temperature difference inside and outside, preventing the water vapor from seeping to the connection between the metal pipe 2 and the plastic pipe 7 and avoiding affecting the tightness of the connection between the metal pipe 2 and the plastic pipe 7. An anti-scaling layer 9 is arranged on the inner wall of the plastic pipe 7.

[0031] As Figure 1 - Figure 2 shown, in this embodiment, the installation cavity 3 is formed in the inner cavity of the metal pipe 2. The installation cavity 3 is adhesively bonded to the isolation layer 4. The isolation layer 4 is made of glass wool material. The metal pipe 2 is made of stainless steel material. The isolation layer 4 can more easily keep the composite pipe body 1 warm and avoid heat loss when heating the composite pipe body 1. The isolation layer 4 is adhesively bonded to the clamping pipe 5. The clamping pipe 5 is made of PVC material. The graphene heating film 6 is laid on the inner wall of the clamping pipe 5. Wires are connected to the power terminals of the graphene heating film 6. The clamping pipe 5 can more easily install the graphene heating film 6 in the metal pipe 2. After the graphene heating film 6 is powered on, it is convenient to heat the liquid in the plastic pipe 7 in winter to prevent the liquid from freezing and reducing the flow rate. The metal pipe 2 is adhesively bonded to the plastic pipe 7. The plastic pipe 7 is made of polyethylene material. The anti-seepage layer 8 is coated on the outer wall of the plastic pipe 7. The anti-seepage layer 8 is made of polyurethane coating material. The anti-scaling layer 9 is coated on the inner wall of the plastic pipe 7. The anti-scaling layer 9 is made of a new type of nano-carbon composite coating. The anti-scaling layer 9 can better protect the inner wall of the plastic pipe 7 and avoid the formation of water scale when the liquid flows through the inner wall of the plastic pipe 7 for a long time.

[0032] The specific implementation process of this embodiment is as follows: When in use, first fix the plastic pipe 7 on the inner wall of the metal pipe 2 with special glue. By setting the graphene heating film 6 on the clamping pipe 5, when using the composite pipe body 1 to transport liquid in winter, the liquid in the plastic pipe 7 can be heated by powering on the graphene heating film 6, avoiding the liquid from freezing and reducing its flow rate. By setting the anti-seepage layer 8 on the outer wall of the plastic pipe 7, when the graphene heating film 6 heats the liquid in the plastic pipe 7, it can prevent the condensation of water vapor due to the high temperature outside the plastic pipe 7 and the low temperature of the liquid inside the plastic pipe 7, and avoid the small water droplets formed by the water vapor between the metal pipe 2 and the plastic pipe 7 from affecting the tightness of their connection.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-strength metal-plastic composite pipe, characterized in that: It includes a composite pipe body (1), outside which there is a metal pipe (2). An installation cavity (3) is formed in the interlayer of the side wall of the metal pipe (2). An isolation layer (4) is arranged in the installation cavity (3). A clamping pipe (5) is adhesively bonded to the inner wall of the isolation layer (4). A graphene heating film (6) is installed on the inner wall of the clamping pipe (5). A plastic pipe (7) is arranged on the inner wall of the metal pipe (2). An anti-seepage layer (8) is coated on the outer wall of the plastic pipe (7). An anti-scaling layer (9) is arranged on the inner wall of the plastic pipe (7).

2. The high-strength metal-plastic composite pipe according to claim 1, characterized in that: The installation cavity (3) is formed in the inner cavity of the metal pipe (2) and is adhesively bonded to the isolation layer (4).

3. The high-strength metal-plastic composite pipe according to claim 2, wherein: The isolation layer (4) is made of glass wool material, and the metal pipe (2) is made of stainless steel material.

4. A high-strength metal-plastic composite pipe according to claim 1, characterized in that: The isolation layer (4) is adhesively bonded to the clamping pipe (5), and the clamping pipe (5) is made of PVC material.

5. A high-strength metal-plastic composite pipe according to claim 1, characterized in that: The graphene heating film (6) is laid on the inner wall of the clamping pipe (5), and wires are connected to the power terminals of the graphene heating film (6).

6. The high-strength metal-plastic composite pipe according to claim 1, wherein: The metal pipe (2) is adhesively bonded to the plastic pipe (7), and the plastic pipe (7) is made of polyethylene material.

7. A high-strength metal-plastic composite pipe according to claim 1, characterized in that: The anti-seepage layer (8) is coated on the outer wall of the plastic pipe (7), and the anti-seepage layer (8) is made of polyurethane coating material.

8. A high-strength metal-plastic composite pipe according to claim 1, characterized in that: The anti-scaling layer (9) is coated on the inner wall of the plastic pipe (7), and the anti-scaling layer (9) is made of a new type of nano-carbon composite coating.

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