Vacuum heat insulation heat preservation pipe structure

Abstract

The utility model provides a vacuum heat insulation heat preservation pipe structure, and belongs to the technical field of heat preservation pipes. The heat preservation pipe structure with the vacuum heat insulation function comprises an inner pipe and an outer pipe, a vacuum layer is arranged between the inner pipe and the outer pipe, a first sealing layer is fixedly connected between the ends of the inner pipe and the outer pipe, and the vacuum layer is formed by vacuum extraction of air between the inner pipe and the outer pipe. Due to the existence of the vacuum layer, heat conduction and convection heat transfer are greatly reduced, the heat preservation effect is improved, the vacuum layer provides excellent heat insulation performance by reducing gas conduction and convection heat transfer, the outer pipe is used for protecting the vacuum layer and providing extra heat insulation performance, and the aluminum alloy outer pipe has excellent heat insulation performance and durability. Heat conduction of the external environment to the pipeline can be effectively prevented, the first sealing layer made of fluororubber can effectively prevent gas from entering the vacuum layer or vacuum leakage, and the heat preservation effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a vacuum heat-insulating thermal insulation pipe structure. Background Art

[0002] Pipes are components of pipeline systems used to transport fluids, gases or solids. They are commonly found in construction, industry, agriculture, mining and other fields. These pipes can be divided into many types according to their uses, materials and manufacturing processes. Common pipes include metal pipes, steel pipes, copper pipes, aluminum pipes, galvanized pipes, plastic pipes, PVC pipes, PE pipes, PP pipes, composite pipes, glass pipes, ceramic pipes and carbon fiber composite pipes. These pipes have different characteristics and applicable scopes. Choosing suitable pipes requires considering engineering requirements, environmental conditions, transportation media and other factors. Insulation pipes are materials used for pipeline insulation. Their main function is to reduce heat loss caused by heat transfer during the transportation process of the pipeline and improve energy utilization efficiency.

[0003] During the long-term use of thermal insulation pipes, especially when the pipelines are long and the temperature difference is large, there is still a large heat loss and the thermal insulation effect is not ideal. Therefore, we proposed a vacuum insulation pipe structure to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a vacuum insulation pipe structure that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a vacuum insulation heat preservation pipe structure, comprising

[0006] An inner tube and an outer tube, a vacuum layer is arranged between the inner tube and the outer tube, and a first sealing layer is fixedly connected between the ends of the inner tube and the outer tube.

[0007] In a preferred solution, the inner tube is made of stainless steel, the outer tube is made of aluminum alloy, and the first sealing layer is made of fluororubber.

[0008] In a preferred solution, the outer wall of the inner tube and the inner wall of the outer tube are both fixedly connected with a rubber layer, and the rubber layer is fixedly connected to the first sealing layer.

[0009] In a preferred solution, reinforcing ribs are fixedly connected between the inner tube and the outer tube, and the reinforcing ribs are made of carbon steel.

[0010] In a preferred solution, the reinforcing ribs are arranged in several groups, the groups of reinforcing ribs are arranged equidistantly, each group of reinforcing ribs is arranged with several reinforcing ribs, the several reinforcing ribs are arranged in a ring-shaped and equidistant manner, and the reinforcing ribs are fixedly connected to the rubber layer.

[0011] In a preferred solution, a second sealing layer is fixedly connected between the outer wall of the inner tube and the inner wall of the outer tube, a plurality of second sealing layers are provided, the plurality of second sealing layers are equidistantly arranged, and the second sealing layer is fixedly connected to the rubber layer.

[0012] In a preferred solution, an anti-corrosion layer is fixedly connected to the inner wall of the inner tube, and the material of the anti-corrosion layer is polyvinyl chloride.

[0013] In a preferred solution, a protective layer is fixedly connected to the outer wall of the outer tube, and the material of the protective layer is a mixture of asbestos fibers and cement.

[0014] In a preferred solution, the outer wall of the protective layer is fixedly connected with a wear-resistant protrusion, and a plurality of the wear-resistant protrusions are provided, and the plurality of the wear-resistant protrusions are evenly arranged on the protective layer.

[0015] The utility model provides a vacuum insulation heat preservation pipe structure, the beneficial effects of which include:

[0016] 1. By setting a vacuum layer, the vacuum layer is formed by vacuum extraction of air between the inner tube and the outer tube. The existence of the vacuum layer greatly reduces heat conduction and convection heat transfer, and improves the thermal insulation effect. The vacuum layer provides excellent thermal insulation performance by reducing gas conduction and convection heat transfer. The outer tube is used to protect the vacuum layer and provide additional thermal insulation performance. The aluminum alloy outer tube has excellent thermal insulation performance and durability, and can effectively prevent the external environment from conducting heat to the pipeline. The first sealing layer of fluororubber material can effectively prevent gas from entering the vacuum layer or vacuum leakage, and has a good thermal insulation effect.

[0017] 2. By setting the reinforcing ribs, the carbon steel reinforcing ribs can withstand the pressure of the conveying medium and stabilize it. The reinforcing ribs are set in a triangle shape, which has high stability. In order to maintain the stability of the vacuum layer, prevent the collapse of the vacuum layer and slow down the heat transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0020] Figure 2A side view schematic diagram of the structure provided for an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the internal cross-sectional structure of a pipeline provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the inner tube structure provided by an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of a pipeline cross-section structure provided for an embodiment of the utility model;

[0024] In the figure: 1. inner tube; 2. outer tube; 3. vacuum layer; 4. first sealing layer; 5. rubber layer; 6. reinforcing ribs; 7. second sealing layer; 8. anti-corrosion layer; 9. protective layer; 10. wear-resistant protrusions. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-Figure 5 The utility model provides a technical solution: a vacuum insulation heat preservation pipe structure, including an inner pipe 1 and an outer pipe 2, a vacuum layer 3 is arranged between the inner pipe 1 and the outer pipe 2, a first sealing layer 4 is fixedly connected between the ends of the inner pipe 1 and the outer pipe 2, the inner pipe 1 is made of stainless steel, the outer pipe 2 is made of aluminum alloy, and the first sealing layer 4 is made of fluororubber. By setting the inner pipe 1 made of stainless steel, it can withstand the pressure and temperature of the conveying medium and ensure the safety and stability of the conveying process. The vacuum layer 3 is formed by the air passage between the inner pipe 1 and the outer pipe 2. It is formed by vacuum extraction, so no additional material is needed. The existence of the vacuum layer 3 greatly reduces heat conduction and convection heat transfer, and improves the thermal insulation effect. The vacuum layer 3 provides excellent thermal insulation performance by reducing gas conduction and convection heat transfer. The outer tube 2 is used to protect the vacuum layer 3 and provide additional thermal insulation performance. The aluminum alloy outer tube 2 has excellent thermal insulation performance and durability, and can effectively prevent the external environment from conducting heat to the pipeline. The first sealing layer 4 of fluororubber can effectively prevent gas from entering the vacuum layer 3 or vacuum leakage, and has a good thermal insulation effect;

[0027] In a preferred embodiment, the outer wall of the inner tube 1 and the inner wall of the outer tube 2 are both fixedly connected with a rubber layer 5, and the rubber layer 5 is fixedly connected to the first sealing layer 4. The rubber layer 5 is used to protect the vacuum layer 3, buffer the impact from the outer tube 2, and buffer the impact of the water flow from the inner tube 1, thereby further improving the protection of the vacuum layer 3;

[0028] In a preferred embodiment, a reinforcing rib 6 is fixedly connected between the inner tube 1 and the outer tube 2. The reinforcing rib 6 is made of carbon steel. The reinforcing rib 6 is provided in several groups. The groups of reinforcing ribs 6 are equidistantly arranged. Each group of reinforcing ribs 6 is provided with several reinforcing ribs. The several reinforcing ribs 6 are annular and equidistant. The reinforcing rib 6 is fixedly connected to the rubber layer 5. The reinforcing rib 6 made of carbon steel can withstand the pressure of the conveying medium and is stable. The reinforcing rib 6 is set in a triangle. The triangle has high stability. In order to maintain the stability of the vacuum layer 3, the collapse of the vacuum layer 3 is prevented and the heat transfer is slowed down.

[0029] In a preferred embodiment, a second sealing layer 7 is fixedly connected between the outer wall of the inner tube 1 and the inner wall of the outer tube 2. A plurality of second sealing layers 7 are provided, and the plurality of second sealing layers 7 are equidistantly arranged. The second sealing layer 7 is fixedly connected to the rubber layer 5. By providing the second sealing layer 7, the second sealing layer 7 is used to further seal the vacuum layer 3. Even if the first sealing layer 4 loses its sealing effect, the second sealing layer 7 can continue to maintain its sealing ability.

[0030] In a preferred embodiment, the inner wall of the inner tube 1 is fixedly connected with an anti-corrosion layer 8, and the material of the anti-corrosion layer 8 is polyvinyl chloride. The inner tube 1 made of stainless steel has a certain corrosion resistance. The anti-corrosion layer 8 is applied to its inner wall. Polyvinyl chloride has strong corrosion resistance, which further improves the anti-corrosion ability of the inner tube 1 and improves the service life of the pipe.

[0031] In a preferred embodiment, the outer wall of the outer tube 2 is fixedly connected to a protective layer 9, the material of the protective layer 9 is a mixture of asbestos fiber and cement, the outer wall of the protective layer 9 is fixedly connected to a wear-resistant protrusion 10, and a plurality of wear-resistant protrusions 10 are provided, and the plurality of wear-resistant protrusions 10 are evenly arranged on the protective layer 9. The protective layer 9 is used to protect the outer tube 2, and the wear-resistant protrusions 10 are used to enhance the wear resistance and overall strength of the tube.

[0032] Specifically, the working process or working principle of the vacuum insulated thermal insulation pipe structure is as follows: by setting an inner tube 1 made of stainless steel, it can withstand the pressure and temperature of the conveying medium and ensure the safety and stability of the conveying process. The vacuum layer 3 is formed by vacuum extraction of air between the inner tube 1 and the outer tube 2, so no additional material is required. The existence of the vacuum layer 3 greatly reduces heat conduction and convection heat transfer, and improves the thermal insulation effect. The vacuum layer 3 provides excellent thermal insulation performance by reducing gas conduction and convection heat transfer. The outer tube 2 is used to protect the vacuum layer 3 and provide additional thermal insulation performance. The aluminum alloy outer tube 2 has excellent thermal insulation performance and durability, and can effectively prevent the external environment from conducting heat to the pipeline. The first sealing layer 4 made of fluororubber can effectively prevent gas from entering the vacuum layer 3 or vacuum leakage, and has a good thermal insulation effect.

[0033] The reinforcing ribs 6 made of carbon steel can withstand the pressure of the conveying medium and are stable. The reinforcing ribs 6 are arranged in a triangle shape, and the triangle shape has high stability. In order to maintain the stability of the vacuum layer 3, the vacuum layer 3 is prevented from collapsing and the heat transfer is slowed down.

Claims

1. A vacuum insulation pipe structure, characterized in that: It comprises an inner tube (1) and an outer tube (2), wherein a vacuum layer (3) is provided between the inner tube (1) and the outer tube (2), and a first sealing layer (4) is fixedly connected between the ends of the inner tube (1) and the outer tube (2).

2. A vacuum insulation pipe structure according to claim 1, characterized in that: The material of the inner tube (1) is stainless steel, the material of the outer tube (2) is set to be aluminum alloy, and the material of the first sealing layer (4) is fluororubber.

3. The vacuum insulation pipe structure according to claim 1, characterized in that: The outer wall of the inner tube (1) and the inner wall of the outer tube (2) are both fixedly connected with a rubber layer (5), and the rubber layer (5) is fixedly connected to the first sealing layer (4).

4. The vacuum insulation pipe structure according to claim 1, characterized in that: A second sealing layer (7) is fixedly connected between the outer wall of the inner tube (1) and the inner wall of the outer tube (2), a plurality of second sealing layers (7) are provided, and the plurality of second sealing layers (7) are equidistantly arranged, and the second sealing layer (7) is fixedly connected to the rubber layer (5).

5. The vacuum insulation pipe structure according to claim 1, characterized in that: An anti-corrosion layer (8) is fixedly connected to the inner wall of the inner tube (1), and the material of the anti-corrosion layer (8) is polyvinyl chloride.

6. The vacuum insulation pipe structure according to claim 1, characterized in that: A protective layer (9) is fixedly connected to the outer wall of the outer tube (2), and the material of the protective layer (9) is a mixture of asbestos fibers and cement.

7. The vacuum insulation pipe structure according to claim 6, characterized in that: The outer wall of the protective layer (9) is fixedly connected with a wear-resistant protrusion (10), and a plurality of the wear-resistant protrusions (10) are provided, and the plurality of the wear-resistant protrusions (10) are evenly arranged on the protective layer (9).

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