Heat exchange tube

Abstract

The utility model relates to the technical field of heat exchange, in particular to a heat exchange tube. The heat exchange tube comprises a heat exchange tube body and a graphene part wrapping the heat exchange tube body. According to the heat exchange tube, the graphene part with the porous structure wraps the heat exchange tube, the heat dissipation performance of graphene is excellent, the heat exchange area can be effectively increased through the porous structure, and therefore the heat exchange efficiency of the whole device is improved. Compared with a conventional fin, the graphene part is lighter in weight, convenient to carry, not easy to corrode and block in a severe environment, convenient to clean and long in service life.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, specifically to a heat exchange tube. Background Technology

[0002] Heat exchange tubes transfer heat between materials by transferring heat from a higher-temperature fluid to a lower-temperature fluid. Currently, commercially available heat exchangers typically use fins for heat transfer. These fins are made of metals with good thermal conductivity, are lightweight, and are easy to process. The surface area of ​​the fins is increased by bending to achieve sufficient heat transfer. However, metal fins are not corrosion-resistant, have low strength, are easily deformed, and are prone to clogging, making them unsuitable for use in harsh outdoor environments such as high-temperature and high-humidity conditions. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a heat exchange tube suitable for outdoor environments.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a heat exchange tube, comprising a heat exchange tube and a graphene portion wrapped around the heat exchange tube, wherein the graphene portion includes a first through hole and a second through hole disposed on both sides of the heat exchange tube, and the axis of the first through hole and the axis of the second through hole are perpendicular to each other.

[0005] The second through hole passes through the first through hole.

[0006] The axis of the first through hole is parallel to the axis of the heat exchange tube.

[0007] The heat exchange tube is made of aluminum alloy.

[0008] The inner surface of the heat exchange tube is provided with a graphene layer.

[0009] The thickness of the graphene layer is 8~12μm.

[0010] The distance between the first through hole and the heat exchange tube is at least 3 mm.

[0011] The distance between two adjacent second through holes is at least 5 mm.

[0012] The diameter of the first through hole is 10-15 mm, and the diameter of the second through hole is 6-11 mm.

[0013] The inlet and outlet ends of the heat exchange tube are exposed outside the graphene portion.

[0014] The beneficial effects of this invention are as follows: The heat exchange tube of this invention is wrapped with a porous graphene layer. Graphene has excellent heat dissipation performance, and its porous structure can effectively increase the heat exchange area, thereby improving the heat exchange efficiency of the entire device. Compared with conventional fins, the graphene layer of this invention is lighter and easier to transport, less prone to corrosion and clogging in harsh environments, easy to clean, and has a long service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the heat exchanger in a specific embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of the heat exchanger in a specific embodiment of this utility model;

[0017] Label Explanation:

[0018] 1. Heat exchanger tubes;

[0019] 2. Graphene section; 21. First through hole; 22. Second through hole. Detailed Implementation

[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please refer to Figure 1 as well as Figure 2 A heat exchange tube includes a heat exchange tube and a graphene portion wrapped around the heat exchange tube. The graphene portion includes a first through hole and a second through hole disposed on both sides of the heat exchange tube, wherein the axis of the first through hole is perpendicular to the axis of the second through hole.

[0022] As described above, the beneficial effects of this invention are as follows: The heat exchange tube of this invention is wrapped with a graphene portion having a first through hole and a second through hole. Graphene has good mechanical properties, which improves the strength of the heat exchange tube; graphene material itself has excellent heat dissipation performance, and the through holes can effectively increase the heat exchange area and improve heat exchange efficiency. The axis of the first through hole is perpendicular to the axis of the second through hole, which can reduce the clogging of the through holes after installation. Compared with conventional metal heat dissipation fins, the graphene portion of this invention is lighter, making it easier to transport and install. It is not easily corroded in harsh environments such as the seaside, acid rain, smog, and high temperature and humidity, and the through holes are less prone to clogging than fins, making them easier to clean and resulting in a longer service life.

[0023] Furthermore, a second through hole is provided through the first through hole.

[0024] As can be seen from the above description, the second through hole is connected to the first through hole, resulting in good ventilation and fast heat transfer rate.

[0025] Furthermore, the axis of the first through hole is parallel to the axis of the heat exchange tube.

[0026] As can be seen from the above description, the axis of the first through hole is parallel to the axis of the heat exchange tube, which can further improve the heat exchange efficiency.

[0027] Furthermore, the heat exchange tubes are made of aluminum alloy.

[0028] As can be seen from the above description, aluminum alloy has good rust resistance, corrosion resistance, and thermal conductivity.

[0029] Furthermore, the heat exchange tubes have an inner circle and outer square structure or an inner circle and outer circle structure.

[0030] Based on the etching described above, the heat exchange tube has an inner circle and outer square structure or an inner circle and outer circle structure, which can effectively resist the deformation caused by high temperature and high pressure during the process of wrapping the heat exchange tube in graphene.

[0031] Furthermore, the inner surface of the heat exchange tube is provided with a graphene layer.

[0032] As can be seen from the above description, coating the inside of the heat exchange tube with a layer of graphene can provide corrosion resistance.

[0033] Furthermore, the thickness of the graphene layer is 8~12μm.

[0034] As described above, a thin graphene layer results in poor corrosion resistance, while a thicker layer is too costly. Therefore, the thickness of the graphene layer is controlled to be 8~12μm.

[0035] Furthermore, the distance between the first through hole and the second through hole and the heat exchange tube is at least 1 mm.

[0036] Preferably, the distance between the first through hole and the second through hole and the heat exchange tube is at least 3 mm.

[0037] Furthermore, the distance between two adjacent second through holes is at least 5 mm.

[0038] As can be seen from the above description, if the wall thickness is too thin, the stability of the graphene part is poor and it is prone to breakage.

[0039] Furthermore, the diameter of the first through hole is 10~15mm, and the diameter of the second through hole is 6~11mm.

[0040] As can be seen from the above description, if the diameter of the first and second through holes is too large, the specific surface area will decrease and the heat transfer effect will be reduced; if the diameter is too small, ventilation will be difficult, the heat transfer rate will be low, and it will be difficult to clean.

[0041] Furthermore, the inlet and outlet ends of the heat exchange tubes are exposed outside the graphene portion.

[0042] Please refer to Figure 1 and Figure 2 One embodiment of this utility model is as follows: a heat exchange tube includes a heat exchange tube 1 and a graphene portion 2 wrapped around the heat exchange tube 1. The liquid inlet and liquid outlet ends of the heat exchange tube 1 are exposed outside the graphene portion 2. The heat exchange tube 1 is made of aluminum alloy 3003, and the inner surface of the heat exchange tube 1 is provided with a graphene layer with a thickness of 10μm. The diameter of the heat exchange tube 1 is 19mm. The graphene portion 2 includes a first through hole 21 with a diameter of 13mm and a second through hole 22 with a diameter of 8mm. The first through hole 21 and the second through hole 22 are both provided on both sides of the heat exchange tube 1. The axis of the first through hole 21 is perpendicular to the axis of the second through hole 22. The second through hole 22 passes through the first through hole 21. The axis of the first through hole 21 is parallel to the axis of the heat exchange tube 1. The distance between the first through hole 21 and the second through hole 22 and the heat exchange tube 1 is 1mm. The distance between two adjacent second through holes 22 is 5mm.

[0043] Embodiment two of this utility model is as follows:

[0044] The only difference between Example 2 and Example 1 is that the thickness of the graphene layer is 8μm, the diameter of the first through hole 21 is 10mm, the diameter of the second through hole 22 is 6mm, the distance between the first through hole 21 and the second through hole 22 and the heat exchange tube 1 is 3mm, and the distance between two adjacent second through holes 22 is 5mm.

[0045] Embodiment three of this utility model is as follows:

[0046] The only difference between Example 3 and Example 1 is that the thickness of the graphene layer is 12 μm, the diameter of the first through hole 21 is 15 mm, the diameter of the second through hole 22 is 11 mm, the distance between the first through hole 21 and the second through hole 22 and the heat exchange tube 1 is 4 mm, and the distance between two adjacent second through holes 22 is 6 mm.

[0047] In summary, the heat exchange tube provided by this utility model has the following advantages:

[0048] 1. By wrapping the heat exchange tube with a graphene portion having a first through hole and a second through hole, excellent mechanical strength and heat dissipation performance are obtained, thereby improving heat exchange efficiency.

[0049] 2. The use of corrosion-resistant graphene and aluminum alloy materials is beneficial for application in harsh environments.

[0050] 3. By limiting the position and diameter of the first and second through holes, the heat exchange tubes are made easy to clean and less prone to clogging while ensuring heat exchange efficiency, making them more suitable for outdoor environments.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat exchange tube, characterized in that, It includes a heat exchange tube and a graphene portion wrapped around the heat exchange tube. The graphene portion includes a first through hole and a second through hole disposed on both sides of the heat exchange tube, and the axis of the first through hole and the axis of the second through hole are perpendicular to each other.

2. The heat exchange tube according to claim 1, characterized in that, The second through hole passes through the first through hole.

3. The heat exchange tube according to claim 1, characterized in that, The axis of the first through hole is parallel to the axis of the heat exchange tube.

4. The heat exchange tube according to claim 1, characterized in that, The heat exchange tube is made of aluminum alloy.

5. The heat exchange tube according to claim 1, characterized in that, The inner surface of the heat exchange tube is provided with a graphene layer.

6. The heat exchange tube according to claim 5, characterized in that, The thickness of the graphene layer is 8~12μm.

7. The heat exchange tube according to claim 1, characterized in that, The distance between the first through hole and the second through hole and the heat exchange tube is at least 1 mm.

8. The heat exchange tube according to claim 6, characterized in that, The distance between two adjacent second through holes is at least 5 mm.

9. The heat exchange tube according to claim 1, characterized in that, The diameter of the first through hole is 10~15mm, and the diameter of the second through hole is 6~11mm.

10. The heat exchange tube according to claim 1, characterized in that, The inlet and outlet ends of the heat exchange tube are exposed outside the graphene portion.

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