Efficient heat absorption copper pipe

Abstract

The utility model relates to the field of copper pipes, in particular to an efficient heat absorption copper pipe which comprises a heat absorption copper pipe body and further comprises a capillary groove, a capillary layer and an airflow channel, the capillary groove is formed in the inner wall of the heat absorption copper pipe body, and the capillary layer covers the side, away from the heat absorption copper pipe body, of the capillary groove. An air flow channel for working liquid to flow is formed in the middle of the capillary layer, the capillary grooves and the capillary layer are arranged on the inner wall of the heat absorption copper pipe body, the backflow speed of the working liquid in the air flow channel can be increased in the mode that the capillary grooves and the capillary layer are combined, and the design is beneficial to enhancing the capillary effect. The working liquid can better circulate in the heat pipe, the backflow speed of the working liquid in the heat pipe is effectively increased, and therefore the heat transfer performance of the heat pipe can be improved, and the efficient heat transfer effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of copper pipes, specifically a high-efficiency heat-absorbing copper pipe. Background Technology

[0002] A heat pipe is a highly efficient heat transfer element that works based on the evaporation and condensation of liquids. Due to its high heat transfer efficiency, heat pipes are widely used in various fields, such as aerospace, military, power, metallurgy, chemical industry, and machinery.

[0003] To enhance capillary action, existing heat pipes typically employ metal powder inner walls or capillary groove structures. However, both of these structures are relatively simple, resulting in poor capillary action and hindering the circulation of the working fluid within the heat pipe. Consequently, the return flow rate of the working fluid inside the heat pipe cannot be effectively increased, thus failing to improve the heat transfer performance of the heat pipe. To address this issue, a high-efficiency heat-absorbing copper tube is now proposed. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency heat-absorbing copper tube to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency heat-absorbing copper tube is provided with a capillary groove, a capillary layer, and an airflow channel. The capillary groove is formed on the inner wall of the heat-absorbing copper tube body, and the capillary layer covers the surface of the capillary groove. An airflow channel for the working liquid is formed in the middle of the capillary layer. A heat-absorbing section is provided on one side of the heat-absorbing copper tube body, and an evaporation and condensation section is provided on the other side. The inner wall of the heat-absorbing section is provided with fine copper powder, and the evaporation and condensation section is provided with coarse copper powder.

[0007] As a further embodiment of this utility model: both the capillary groove and the airflow channel are arranged along the length direction of the heat-absorbing copper tube body, and the cross-sectional shape of the heat-absorbing copper tube body is circular.

[0008] As a further aspect of this utility model: the capillary layer forms multiple uniformly distributed through holes inside the heat-absorbing copper tube body, and the through holes are connected to the airflow channel.

[0009] As a further embodiment of this utility model, the capillary groove is integrally formed and disposed on the inner wall of the heat-absorbing copper tube body.

[0010] As a further embodiment of this invention, the capillary layer is copper powder.

[0011] As a further embodiment of this utility model: the heat-absorbing copper tube body includes a heat-absorbing section, an insulation section, and an evaporation-condensation section, which are connected in sequence.

[0012] As a further aspect of this utility model, the end of the heat-absorbing copper tube body furthest from the evaporation and condensation section has a smaller diameter.

[0013] As a further embodiment of this invention: the capillary layer comprises fine powder and coarse powder.

[0014] As a further embodiment of this utility model: the fine powder is located in the heat absorption section and covers the inner wall of the capillary groove, and the coarse powder is located in the heat insulation section and covers the inner wall of the capillary groove.

[0015] As a further embodiment of this utility model: the fine powder is located in the heat absorption section and covers the inner wall of the capillary groove, and the coarse powder is located in the heat insulation section and the evaporation and condensation section and covers the inner wall of the capillary groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model discloses a high-efficiency heat-absorbing copper tube. By setting capillary grooves and capillary layers on the inner wall of the heat-absorbing copper tube body, the combination of capillary grooves and capillary layers can improve the return flow rate of the working liquid inside the airflow channel. This design helps to enhance capillary action, allowing the working liquid to circulate better inside the heat pipe, effectively improving the return flow rate of the working liquid inside the heat pipe, thereby improving the heat transfer performance of the heat pipe and achieving a high-efficiency heat transfer effect.

[0018] 2. This utility model discloses a high-efficiency heat-absorbing copper tube. The heat-absorbing section is the heated end of the heat pipe, where the liquid working medium evaporates and absorbs heat. The insulating section is the middle part of the heat pipe, which acts as an insulator to prevent heat from being directly transferred from the hot end to the cold end. The evaporation and condensation section is the other end of the heat pipe, where steam releases heat and condenses into liquid. When the heat-absorbing section of the heat pipe is heated, the working liquid in the middle of the airflow channel evaporates rapidly and absorbs heat, reducing the heat at the heat-absorbing section. The steam flows to the other end under a small pressure difference, where it cools and re-condenses into liquid, releasing heat at the evaporation and condensation section. The liquid flows back to the heat-absorbing section again through the capillary layer and capillary groove. Through the circulation of the working liquid between the heat-absorbing section and the evaporation and condensation section, efficient heat transfer is achieved.

[0019] 3. The present invention provides a high-efficiency heat-absorbing copper tube. Combining Embodiment 1 and Embodiment 2, the distribution of the capillary layer inside the heat-absorbing copper tube body allows the heat tube to be suitable for different installation conditions. In Embodiment 1, the capillary layer is distributed in the heat-absorbing section and the insulation section, making the heat tube suitable for the case where the heat-absorbing section is at the bottom and the evaporation and condensation section is at the top. In Embodiment 2, the capillary layer is distributed throughout the entire heat-absorbing copper tube body, making the heat tube suitable for the case where the heat-absorbing section is at the top and the evaporation and condensation section is at the bottom. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0022] Figure 3 This utility model Figure 2 A magnified structural diagram of part A in the middle.

[0023] Figure 4 This is a cross-sectional view of the heat-absorbing copper tube body in Embodiment 1 of this utility model.

[0024] Figure 5 This utility model Figure 4 A magnified structural diagram of part B.

[0025] Figure 6 This is a cross-sectional view of the heat-absorbing copper tube body in Embodiment 2 of this utility model.

[0026] Figure 7 This utility model Figure 6 A magnified structural diagram of section C.

[0027] Among them: heat-absorbing copper tube body 11, heat-absorbing copper tube body; capillary layer 12, capillary layer; airflow channel 13, airflow channel; heat-absorbing section 14, heat-absorbing section; insulation section 15, insulation section; evaporation and condensation section 16, evaporation and condensation section; fine powder 17, fine powder; coarse powder 18, coarse powder; capillary groove 19, capillary groove. Detailed Implementation

[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0029] The present invention provides the following preferred embodiments: Example 1

[0030] like Figures 1-5 As shown, a high-efficiency heat-absorbing copper tube is provided. The copper tube body 11 is provided with capillary grooves 19, capillary layers 12 and airflow channels 13. The capillary grooves 19 are formed on the inner wall of the heat-absorbing copper tube body 11. The capillary layer 12 covers the surface of the capillary grooves 19. An airflow channel 13 for the flow of working liquid is formed in the middle of the capillary layer 12. A heat-absorbing section 14 is provided on one side of the heat-absorbing copper tube body 11 and an evaporation-condensation section 16 is provided on the other side. The inner wall of the heat-absorbing section 14 is provided with fine copper powder, and the evaporation-condensation section 16 is provided with coarse copper powder. Preferably, the working liquid is water. Water has the characteristics of low density, high specific heat and excellent heat transfer performance, and is widely used in heat pipes.

[0031] When one end of the heat-absorbing copper tube body 11 is heated, the working liquid in the middle of the airflow channel 13 evaporates rapidly and absorbs heat, reducing the heat at the heated end. The steam flows to the other end under a small pressure difference, where it cools and recondenses into liquid, releasing heat. The liquid flows back to the heated end through the capillary layer 12 and capillary groove 19. Through the circulation of the working liquid, efficient heat transfer is achieved.

[0032] The combination of capillary groove 19 and capillary layer 12 can improve the return flow rate of the working fluid inside the airflow channel 13. This design helps to enhance capillary action, allowing the working fluid to circulate better inside the heat pipe, effectively improving the return flow rate of the working fluid inside the heat pipe, thereby improving the heat transfer performance of the heat pipe and achieving efficient heat transfer.

[0033] like Figures 1-5 As shown, the capillary groove 19 and the airflow channel 13 are both arranged along the length direction of the heat-absorbing copper tube body 11. The cross-sectional shape of the heat-absorbing copper tube body 11 is circular. The arrangement of the capillary groove 19 along the length direction of the heat-absorbing copper tube body 11 is conducive to obtaining a larger capillary force, which is conducive to improving the return flow rate of the working liquid and improving the heat transfer effect of the heat pipe.

[0034] like Figures 1-5 As shown, the capillary layer 12 forms multiple uniformly distributed through holes inside the heat-absorbing copper tube body 11. The through holes are connected to the airflow channel 13. The main function of the capillary layer 12 in the heat pipe is to generate capillary force, so that the working liquid circulates inside the heat-absorbing copper tube body 11. When the heat pipe is working, because the through holes and the airflow channel 13 are connected, the liquid flows into the through holes, so that the capillary layer 12 is filled with liquid working fluid. The external heat source inputs heat at the heat-absorbing section 14, causing the working liquid to evaporate and vaporize. The vapor flows to the evaporation and condensation section 16 to condense into liquid, releasing heat. The condensed liquid shrinks into the capillary layer 12 and flows back to the evaporation and condensation section 16 by the action of capillary pressure, completing the automatic circulation of the working liquid.

[0035] like Figures 1-5 As shown, the capillary groove 19 is integrally formed on the inner wall of the heat-absorbing copper tube body 11. Specifically, the capillary groove 19 is made by extrusion and drawing.

[0036] like Figures 1-5 As shown, the capillary layer 12 is made of copper powder, which has good thermal conductivity.

[0037] like Figures 1-5As shown, the heat-absorbing copper tube body 11 includes a heat-absorbing section 14, an insulation section 15, and an evaporation-condensation section 16. The heat-absorbing section 14, the insulation section 15, and the evaporation-condensation section 16 are connected in sequence. The heat-absorbing section 14 is the heated end of the heat pipe, where the liquid working medium evaporates and absorbs heat. The insulation section 15 is the middle part of the heat pipe, which acts as an insulator to prevent heat from being directly transferred from the hot end to the cold end. The evaporation-condensation section 16 is the other end of the heat pipe, where steam releases heat and condenses into liquid.

[0038] like Figures 1-5 As shown, the end of the heat-absorbing copper tube body 11 that is far from the evaporation and condensation section 16 has a smaller diameter. The smaller diameter helps to improve the heat transfer efficiency of the heat pipe, so that steam can be transferred to the evaporation and condensation section 16 more quickly.

[0039] like Figures 1-5 As shown, the capillary layer 12 includes fine powder 17 and coarse powder 18. Fine powder 17 can form a more uniform coating, which is beneficial to reduce the wetting angle and improve the heat transfer performance. It is suitable for the heat absorption section 14 of the heat pipe. Coarse powder 18 has good wettability and adsorption, so it has good adsorption of the working liquid.

[0040] like Figures 4-5 As shown, the fine powder 17 is located in the heat absorption section 14 and covers the inner wall of the capillary groove 19, and the coarse powder 18 is located in the heat insulation section 15 and covers the inner wall of the capillary groove 19.

[0041] When the heat-absorbing section 14 is at the bottom and the evaporation-condensation section 16 is at the top, the heat-absorbing section 14 in the heat pipe is heated. The working liquid in the middle of the airflow channel 13 evaporates rapidly and absorbs heat, reducing the heat at the heat-absorbing section 14. The vapor flows to the evaporation-condensation section 16 under a small pressure difference, where it cools and re-condenses into liquid, releasing heat at the evaporation-condensation section 16. The liquid then flows back to the heat-absorbing section 14 under the influence of gravity. This method is suitable for heat pipes where the direction of gravity is E (e.g., heat pipes with gravity in the E direction). Figure 4 ). Example 2

[0042] like Figures 6-7 As shown, the fine powder 17 is located in the heat absorption section 14 and covers the inner wall of the capillary groove 19, and the coarse powder 18 is located in the heat insulation section 15 and the evaporation and condensation section 16 and covers the inner wall of the capillary groove 19.

[0043] When the evaporation-condensation section 16 is at the bottom and the heat absorption section 14 is at the top, the heat absorption section 14 in the heat pipe is heated. The working liquid in the middle of the airflow channel 13 evaporates rapidly and absorbs heat, reducing the heat at the heat absorption section 14. The vapor flows to the evaporation-condensation section 16 under a small pressure difference, where it cools and re-condenses into liquid, releasing heat at the evaporation-condensation section 16. The liquid then flows back to the heat absorption section 14 under the action of the capillary groove 19 and the capillary layer 12. This method is suitable for heat pipes where the direction of gravity is F (e.g., Figure 6 );

[0044] By combining Embodiment 1 and Embodiment 2, the distribution of the capillary layer 12 inside the heat-absorbing copper tube body 11 enables the heat pipe to be suitable for installation under different conditions.

[0045] The specific working process of this utility model is as follows:

[0046] The heat-absorbing section 14 is the heated end of the heat pipe, where the liquid working medium evaporates and absorbs heat. The heat-insulating section 15 is the middle part of the heat pipe, which acts as an insulator to prevent heat from being directly transferred from the hot end to the cold end. The evaporation-condensation section 16 is the other end of the heat pipe, where steam releases heat and condenses into liquid. When the heat-absorbing section 14 of the heat pipe is heated, the working liquid in the middle of the airflow channel 13 evaporates rapidly and absorbs heat, reducing the heat at the heat-absorbing section 14. The steam flows to the other end under a small pressure difference, where it cools and re-condenses into liquid, releasing heat at the evaporation-condensation section 16. The liquid flows back to the heat-absorbing section 14 through the capillary layer 12 and the capillary groove 19. Through the circulation of the working liquid between the heat-absorbing section 14 and the evaporation-condensation section 16, efficient heat transfer is achieved.

[0047] When the heat-absorbing section 14 is below and the evaporation-condensation section 16 is above, the heat-absorbing section 14 in the heat pipe is heated. The working liquid in the middle of the airflow channel 13 evaporates rapidly and absorbs heat, reducing the heat at the heat-absorbing section 14. The steam flows to the evaporation-condensation section 16 under a small pressure difference. The steam cools and recondenses into liquid at this point, releasing heat at the evaporation-condensation section 16. The liquid flows back to the heat-absorbing section 14 under the action of gravity.

[0048] The beneficial effects of this utility model are specifically reflected in the fact that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency heat-absorbing copper tube, comprising a heat-absorbing copper tube body (11), characterized in that, The copper tube body (11) is provided with a capillary groove (19), a capillary layer (12) and an airflow channel (13). The capillary groove (19) is formed on the inner wall of the heat-absorbing copper tube body (11). The capillary layer (12) covers the surface of the capillary groove (19). An airflow channel (13) for the working liquid to flow is formed in the middle of the capillary layer (12). A heat-absorbing section (14) is provided on one side of the heat-absorbing copper tube body (11), and an evaporation and condensation section (16) is provided on the other side. Fine copper powder is provided on the inner wall of the heat-absorbing section (14), and coarse copper powder is provided on the evaporation and condensation section (16).

2. The high-efficiency heat-absorbing copper tube according to claim 1, characterized in that, Both the capillary groove (19) and the airflow channel (13) are arranged along the length of the heat-absorbing copper tube body (11), and the cross-sectional shape of the heat-absorbing copper tube body (11) is circular.

3. The high-efficiency heat-absorbing copper tube according to claim 2, characterized in that, The capillary layer (12) forms multiple uniformly distributed through holes inside the heat-absorbing copper tube body (11), and the through holes are connected to the airflow channel (13).

4. The high-efficiency heat-absorbing copper tube according to claim 3, characterized in that, The capillary groove (19) is integrally formed on the inner wall of the heat-absorbing copper tube body (11).

5. The high-efficiency heat-absorbing copper tube according to claim 4, characterized in that, The capillary layer (12) is copper powder.

6. The high-efficiency heat-absorbing copper tube according to claim 5, characterized in that, The heat-absorbing copper tube body (11) includes a heat-absorbing section (14), an insulation section (15), and an evaporation and condensation section (16), which are connected in sequence.

7. The high-efficiency heat-absorbing copper tube according to claim 6, characterized in that, The end of the heat-absorbing copper tube body (11) that is far from the evaporation and condensation section (16) has a smaller diameter.

8. The high-efficiency heat-absorbing copper tube according to claim 7, characterized in that, The capillary layer (12) comprises fine powder (17) and coarse powder (18).

9. A high-efficiency heat-absorbing copper tube according to claim 8, characterized in that, The fine powder (17) is located in the heat-absorbing section (14) and covers the inner wall of the capillary groove (19), while the coarse powder (18) is located in the heat-insulating section (15) and covers the inner wall of the capillary groove (19).

10. A high-efficiency heat-absorbing copper tube according to claim 8, characterized in that, The fine powder (17) is located in the heat absorption section (14) and covers the inner wall of the capillary groove (19), while the coarse powder (18) is located in the heat insulation section (15) and the evaporation and condensation section (16) and covers the inner wall of the capillary groove (19).

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