Channel refining mechanism of modularized micro-channel aluminum flat pipe

Abstract

The utility model relates to the technical field of micro-channel aluminum flat tubes, and discloses a channel refining mechanism of a modularized micro-channel aluminum flat tube, which comprises an aluminum flat tube I. A plurality of main pulse holes are formed in the top of the outer wall of the aluminum flat tube I. A plurality of branch pulse holes are formed in the periphery of the inner wall of each main pulse hole. The periphery of the inner wall of each branch vein hole is provided with a micro vein hole, the top of the outer wall of the first aluminum flat pipe is fixedly connected with a second aluminum flat pipe, the periphery of the top of the second aluminum flat pipe is provided with an arc-shaped groove, and the periphery of the outer wall of the first aluminum flat pipe and the periphery of the outer wall of the second aluminum flat pipe are provided with a plurality of square channels. According to the utility model, the main pulse holes, the branch pulse holes and the micro pulse holes of the aluminum flat pipe I form a grading channel, the fluid contact area is increased to strengthen heat transfer, the arc-shaped grooves and the square channel of the aluminum flat pipe II optimize the fluid path, guide the fluid to flow to reduce the resistance, and reduce the friction frequency with the pipe wall, so that the energy consumption of the system is reduced.

Description

Technical Field

[0001] This utility model relates to the field of microchannel aluminum flat tube technology, and in particular to a channel refinement mechanism for a modular microchannel aluminum flat tube. Background Technology

[0002] Microchannel aluminum flat tubes are flat aluminum alloy tubes with a microchannel structure. They have multiple parallel microchannels, the diameter and width of which are generally in the millimeter range or even smaller. The shape and size of the channels vary depending on the application requirements. Common shapes include circular, rectangular and irregular shapes. The tube body is flat overall. Compared with traditional circular aluminum tubes, it has a larger heat dissipation area and a more compact structure.

[0003] The channel refinement mechanism of modular microchannel aluminum flat tubes refers to the structure and device used to subdivide and optimize flat tube channels to improve performance. These mechanisms come in various forms, including: setting special partition structures inside the tube to divide large channels into regular microchannels, increasing the contact area between the fluid and the tube wall, and enhancing heat exchange; optimizing channel inlets and outlets; using gradient structures to reduce fluid turbulence and energy loss; and setting raised grooves to enhance fluid disturbance and improve heat exchange efficiency. However, in existing modular microchannel aluminum flat tube channel refinement mechanisms, while guiding fluid flow and reducing resistance, the subdivision of channels makes the fluid flow path inside the tube more complex and tortuous. The fluid needs to flow through numerous microchannels, increasing the number of frictions with the tube wall, leading to a certain increase in flow resistance. This requires additional power to propel the fluid flow, thus increasing the system's energy consumption. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a channel refinement mechanism for a modular microchannel aluminum flat tube, aiming to improve the problem in the prior art that the increased number of frictions with the tube wall while guiding fluid flow and reducing resistance leads to increased system energy consumption.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a channel refinement mechanism for a modular microchannel aluminum flat tube, comprising an aluminum flat tube one, wherein multiple main vein holes are formed on the top of the outer wall of the aluminum flat tube one, multiple branch vein holes are formed around the inner walls of the multiple main vein holes, and microvessel holes are formed around the inner walls of the multiple branch vein holes. An aluminum flat tube two is fixedly connected to the top of the outer wall of the aluminum flat tube one, wherein an arc-shaped groove is formed around the top of the aluminum flat tube two, and multiple square channels are formed around the outer walls of the aluminum flat tube one and the aluminum flat tube two. A fixed tube is fixedly connected to the rear side of the outer wall of tube two. A connecting tube is fixedly connected to the rear side of the outer wall of the fixed tube. Support rods are fixedly connected to the upper and lower sides of the inner wall of the fixed tube. A moving groove is opened in the middle of the inner wall of each of the two support rods. A roller is slidably connected to the middle of the inner wall of the moving groove. A telescopic rod is fixedly connected to the adjacent side of the inner wall of the roller. An adjusting rod is rotatably connected to the adjacent side of the outer wall of the telescopic rod. The adjusting rod is slidably connected to the middle of the inner wall of the moving groove. A connecting mechanism is fixedly connected to the front side of the outer wall of aluminum flat tube one. The connecting mechanism is used to connect the microchannel aluminum flat tube.

[0006] As a further description of the above technical solution:

[0007] The connecting mechanism includes a support plate, which is fixedly connected to the front side of the outer wall of an aluminum flat tube. A fixing strip is fixedly connected to the rear side of the outer wall of the support plate. A fixing frame is slidably connected to the front side of the outer wall of the fixing strip. A fixing block is fixedly connected to the rear side of the outer wall of the fixing frame. A pulley is rotatably connected to the middle of the inner wall of the fixing frame. A spring plate is slidably connected to the rear side of the outer wall of the pulley. The spring plate engages with the fixing block.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the adjusting rod is threaded with multiple screws.

[0010] As a further description of the above technical solution:

[0011] A movable plate is fixedly connected to one side of the inner wall of the movable groove.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the movable plate is threaded with bolts on one side.

[0014] As a further description of the above technical solution:

[0015] The support rod has connecting holes at its left and right ends on its outer wall.

[0016] As a further description of the above technical solution:

[0017] A gasket is fixedly connected to one side of the outer wall of the spring plate.

[0018] As a further description of the above technical solution:

[0019] The gasket has an exhaust hole in the middle of its inner wall.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the main vein holes, branch vein holes and micro vein holes of the aluminum flat tube one form a graded channel, which increases the fluid contact area to enhance heat transfer. The arc groove and square channel of the aluminum flat tube two optimize the fluid path. The fixed tube and connecting tube provide support. Its internal structure is adjustable. The position and angle of the aluminum flat tube can be flexibly adjusted by the sliding of the roller, the extension and retraction of the telescopic rod and the rotation of the adjusting rod to adapt to different scenarios, guide the fluid flow to reduce resistance, reduce the number of frictions with the tube wall, and thus reduce the energy consumption of the system.

[0022] 2. In this utility model, the support plate is fixed to the front side of the aluminum flat tube, and the fixing strip on it provides a sliding track for the fixing frame. The fixing frame can be adjusted in position as needed. Its fixing block is used for pre-fixing. The pulley reduces the sliding friction of the spring plate. The spring plate slides into the fixing block, and the elasticity enables the aluminum flat tube and the component to be quickly fastened. It can also adapt to size errors. Attached Figure Description

[0023] Figure 1 A perspective view of a channel refinement mechanism for a modular microchannel aluminum flat tube proposed in this utility model;

[0024] Figure 2 This is a structural exploded view of a channel refinement mechanism for a modular microchannel aluminum flat tube proposed in this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of a channel refinement mechanism for a modular microchannel aluminum flat tube proposed in this utility model.

[0026] Figure 4 This is a partial structural exploded view of the channel refinement mechanism of a modular microchannel aluminum flat tube proposed in this utility model.

[0027] Figure 5 This is a split diagram of the connection mechanism of the channel refinement mechanism of a modular microchannel aluminum flat tube proposed in this utility model.

[0028] Legend:

[0029] 1. Aluminum flat tube one; 2. Connecting mechanism; 201. Support plate; 202. Fixing strip; 203. Fixing frame; 204. Fixing block; 205. Pulley; 206. Spring plate; 3. Main vein hole; 4. Branch vein hole; 5. Micro vein hole; 6. Aluminum flat tube two; 7. Arc groove; 8. Square channel; 9. Fixing tube; 10. Connecting tube; 11. Support rod; 12. Moving groove; 13. Roller; 14. Telescopic rod; 15. Adjusting rod; 16. Screw; 17. Moving plate; 18. Bolt; 19. Connecting hole; 20. Gasket; 21. Vent hole. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a modular microchannel aluminum flat tube channel refinement mechanism, comprising an aluminum flat tube 1, with multiple main vein holes 3 formed on the top of the outer wall of the aluminum flat tube 1, multiple branch vein holes 4 formed around the inner walls of the multiple main vein holes 3, and microvessel holes 5 formed around the inner walls of the multiple branch vein holes 4. An aluminum flat tube 2 6 is fixedly connected to the top of the outer wall of the aluminum flat tube 1, with arc-shaped grooves 7 formed around the top of the aluminum flat tube 2 6. Multiple square channels 8 are formed around the outer walls of the aluminum flat tube 1 and the aluminum flat tube 2 6. A fixing tube 9 is fixedly connected to the rear side of the outer walls of the aluminum flat tube 1 and the aluminum flat tube 2 6. A connecting pipe 10 is fixedly connected to the back side of the wall. Support rods 11 are fixedly connected to the upper and lower sides of the inner wall of the fixed pipe 9. A moving groove 12 is opened in the middle of the inner wall of the two support rods 11. A roller 13 is slidably connected to the middle of the inner wall of the moving groove 12. A telescopic rod 14 is fixedly connected to the adjacent side of the inner wall of the roller 13. An adjusting rod 15 is rotatably connected to the adjacent side of the outer wall of the telescopic rod 14. The adjusting rod 15 is slidably connected to the middle of the inner wall of the moving groove 12. A connecting mechanism 2 is fixedly connected to the front side of the outer wall of the aluminum flat tube 1. The connecting mechanism 2 is used to connect the microchannel aluminum flat tube. Multiple screws 16 are threaded around the outer wall of the adjusting rod 15.

[0032] Specifically, aluminum flat tube 1 and aluminum flat tube 6 form a fluid transport structure. The main vein pore 3 is located at the top of aluminum flat tube 1, providing a large flow capacity. Branch vein pores 4 and microvein pores 5 are distributed around the main vein pore 3, mimicking the structure of plant leaf veins to achieve channel refinement. The main vein pore 3 serves as the main fluid channel, and the fluid is dispersed through the branch vein pores 4. The microvein pores 5 further refine the fluid path. The microvein pores 5 have a pore diameter of 50-200 μm and a porosity of 20%-60%. The fluid undergoes a phase change within the microvein pores 5, improving heat transfer efficiency. The arc-shaped groove 7 of aluminum flat tube 6 guides the fluid flow, ensuring the fluid passes through... The connection is smooth. The fixed tube 9, support rod 11 and adjusting rod 15 provide stability to the structure and can be finely adjusted to adapt to different working conditions. The aluminum flat tube 1 is connected to the microchannel aluminum flat tube through the connecting mechanism 2 on the front side of the outer wall to meet the assembly requirements of the pipeline system. The adjusting rod 15 relies on multiple screws 16 connected by threads around the outer wall. By turning the screws 16, the position of the screws 16 on the adjusting rod 15 can be changed, thereby adjusting the shape, tightness or position of the connecting mechanism 2, so as to adapt to the connection of microchannel aluminum flat tubes of different sizes and shapes, and ensure the stability and adaptability of the connection.

[0033] Reference Figure 1 , Figure 2 and Figure 5 The connecting mechanism 2 includes a support plate 201, which is fixedly connected to the front side of the outer wall of the aluminum flat tube 1. A fixing strip 202 is fixedly connected to the rear side of the outer wall of the support plate 201. A fixing frame 203 is slidably connected to the front side of the outer wall of the fixing strip 202. A fixing block 204 is fixedly connected to the rear side of the outer wall of the fixing frame 203. A pulley 205 is rotatably connected to the middle of the inner wall of the fixing frame 203. A spring plate 206 is slidably connected to the rear side of the outer wall of the pulley 205. The spring plate 206 engages with the fixing block 204. A moving plate 17 is fixedly connected to one side of the inner wall of the moving groove 12. A bolt 18 is threadedly connected to one side of the inner wall of the moving plate 17.

[0034] Specifically, the support plate 201 is fixed to the outer wall of the aluminum flat tube, providing an installation plane; the fixing strip 202 is connected to the support plate 201, providing a guide rail for the fixing frame 203, allowing the fixing frame 203 to slide and adjust its position to adapt to different aluminum flat tube specifications; the fixing block 204 on the rear side of the fixing frame 203 achieves pre-fixation; the pulley 205 reduces the sliding friction of the spring plate 206, and the spring plate 206 uses elastic deformation to generate buffer force. After engaging with the fixing block 204, the spring force tightly fixes the aluminum flat tube to the component, achieving a stable connection and adapting to dimensional errors, enhancing compatibility. The moving groove 12, the moving plate 17, and the bolt 18 work together to achieve flexible adjustment of the component. In addition to the fixed position, the movable groove 12 provides a moving track for the movable plate 17. The movable plate 17 can slide along the groove on one side of its inner wall to change its position to adapt to different installation or use requirements. The bolt 18 is threadedly connected to the movable plate 17. When the movable plate 17 slides to the desired position, the bolt 18 is tightened so that its end abuts against the inner wall of the movable groove 12 or generates a fastening force with other fixed components to fix the movable plate 17 and prevent it from being displaced due to external forces during use. Loosening the bolt 18 allows the movable plate 17 to regain its freedom of movement and facilitates readjustment of its position. This structure is simple and practical and is suitable for machinery and equipment that require dynamic position adjustment and reliable fixation.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The support rod 11 has connecting holes 19 at the left and right ends of its outer wall, and a gasket 20 is fixedly connected to one side of the outer wall of the spring plate 206. An exhaust hole 21 is provided in the middle of the inner wall of the gasket 20.

[0036] Specifically, the support rod 11 can be quickly assembled and fixed to the fixing frame 203 using bolts 18 and pins through the connecting holes 19 at the left and right ends of its outer wall, ensuring the connection strength and stability of the overall structure. The spring plate 206 has an elastic buffering effect. When subjected to external impact or pressure, it deforms and absorbs energy. The gasket 20 fixed to one side of the outer wall of the spring plate 206 can increase the contact area between the spring plate 206 and other components, making the force more uniform and preventing stress concentration. On the other hand, it provides a mounting carrier for the vent 21. The vent 21 can quickly expel the residual air between the gasket 20 and other components during the bonding process, avoiding problems such as air bubbles and gaps caused by residual air. It also helps to balance the air pressure on both sides of the gasket 20, improve the tightness and stability of the bonding between the gasket 20 and other components, and enhance the reliability of the overall structure.

[0037] Working Principle: Aluminum flat tube 1 and aluminum flat tube 2 together constitute the main fluid transport structure. The main vein orifice 3 is located at the top of the outer wall of aluminum flat tube 1, serving as the main channel for fluid transport and providing a large fluid flow capacity. Branch vein orifices 4 are distributed around the inner wall of the main vein orifice 3, and microvein orifices 5 are distributed around the inner wall of the branch vein orifice 4. This hierarchical channel structure mimics the hierarchical diffusion structure of plant leaf veins, from the main vein to the branch veins and then to the microvein, achieving channel refinement. The main vein orifice 3 serves as the main channel for fluid to enter aluminum flat tube 1. After the fluid flows into the main vein orifice 3, it is further dispersed through the branch vein orifices 4 around its inner wall. This dispersion allows the fluid... At the interface between the main vein orifice 3 and the branch vein orifice 4, the flow path is subdivided, achieving the first stage of channel refinement. The flow rate of the main vein orifice 3 can be evenly distributed into multiple branch vein orifices 4, making the fluid distribution more uniform and laying the foundation for subsequent micro-vein orifice refinement 5. The micro-vein orifices 5 around the inner wall of the branch vein orifice 4 further refine the channel. The pore size of the micro-vein orifice 5 is between 50 and 200 μm, and the porosity gradually changes between 20% and 60%. When the fluid flows from the branch vein orifice 4 into the micro-vein orifice 5, due to the small pore size and gradually changing porosity of the micro-vein orifice 5, the flow characteristics of the fluid in the micro-vein orifice 5 change significantly, and the fluid forms a finer channel within the micro-vein orifice 5. The flow stream further refines the channel, enabling a phase change of the working fluid within the micro-orifice 5. Under high-temperature conditions exceeding 150°C, the working fluid within the micro-orifice 5 undergoes a phase change, transforming from a liquid to a gaseous state. In the refrigeration system, the liquid refrigerant rapidly evaporates into a gaseous state upon heating within the micro-orifice 5. This phase change process absorbs a significant amount of heat, significantly improving the heat exchange efficiency within the micro-orifice 5. The gaseous substances generated by the working fluid phase change form micro-jets within the micro-orifice 5. The presence of these micro-jets further enhances the heat and mass transfer process between the fluid and the wall of the micro-orifice 5. The micro-jets can rapidly transfer heat from the high-temperature region to the low-temperature region, effectively improving the overall channel refinement mechanism. The boiling heat exchange effect is achieved by the arc-shaped grooves 7 around the top of the aluminum flat tube 2 6, which helps guide the flow of fluid between aluminum flat tube 1 and aluminum flat tube 2 6, making the transition of fluid between different aluminum flat tubes smoother. This, combined with the fluid flow after channel refinement, ensures the overall fluid flow performance. The structure composed of components such as fixed tube 9, support rod 11, and adjusting rod 15 provides structural support for the entire channel refinement mechanism, ensuring the stability of the channel refinement structure during operation. On the other hand, the adjusting rod 15 and roller 13 components can fine-tune the channel refinement structure to adapt to the fluid flow and heat exchange connection requirements under different working conditions.

[0038] The support plate 201 is fixed to the front side of the outer wall of the aluminum flat tube 1, serving as the basic carrier for connection and providing an installation plane for subsequent components; the fixing strip 202 is connected to the support plate 201, further clarifying the fixing direction and position reference, and providing a guide track for the sliding of the fixing frame 203. The fixing frame 203 can slide along the front side of the outer wall of the fixing strip 202, allowing users to adjust its position according to actual needs to adapt to aluminum flat tubes of different specifications or connection scenarios; the fixing block 204 on the rear side of the fixing frame 203, after the position is adjusted, can be initially connected to other components to be connected. The steps are coordinated to achieve pre-fixation. The pulley 205 rotates on the inner wall of the fixing frame 203, reducing the friction when the spring plate 206 slides, allowing it to move more smoothly. The spring plate 206 contacts the pulley 205 and can slide. When subjected to force, it uses its own elastic deformation to generate buffer force. When the spring plate 206 slides to engage with the fixing block 204, the elastic force of the spring is used to tightly squeeze and fix the aluminum flat tube and the part to be connected, completing a quick and stable connection. At the same time, the elasticity of the spring plate 206 can also adapt to a certain range of dimensional errors, enhancing the compatibility of the connection.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A channel refinement mechanism for a modular microchannel aluminum flat tube, comprising an aluminum flat tube (1), characterized in that: The top of the outer wall of the aluminum flat tube one (1) has multiple main vein holes (3), and the inner walls of the multiple main vein holes (3) have multiple branch vein holes (4) around them. The inner walls of the multiple branch vein holes (4) have multiple micro vein holes (5). The top of the outer wall of the aluminum flat tube one (1) is fixedly connected to the aluminum flat tube two (6). The top of the aluminum flat tube two (6) has an arc-shaped groove (7) around it. The outer walls of the aluminum flat tube one (1) and the aluminum flat tube two (6) have multiple square channels (8). The rear side of the outer walls of the aluminum flat tube one (1) and the aluminum flat tube two (6) is fixedly connected to the fixed tube (9). The rear side of the outer wall of the fixed tube (9) is fixedly connected to the fixed tube. There is a connecting tube (10), and the inner walls of the fixed tube (9) are fixedly connected to the upper and lower sides of the support rods (11). The inner walls of the two support rods (11) are provided with moving grooves (12). The inner walls of the moving grooves (12) are slidably connected to the middle of the inner walls of the moving grooves (12). The inner walls of the rollers (13) are fixedly connected to the adjacent side of the inner walls of the rollers (13). The outer walls of the moving grooves (14) are rotatably connected to the adjacent side of the outer walls of the moving grooves (14). The adjusting rods (15) are slidably connected to the middle of the inner walls of the moving grooves (12). The outer walls of the aluminum flat tube (1) are fixedly connected to the front side of the outer wall of the aluminum flat tube (1). The connecting mechanism (2) is used to connect the microchannel aluminum flat tube.

2. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 1, characterized in that: The connecting mechanism (2) includes a support plate (201), which is fixedly connected to the front side of the outer wall of the aluminum flat tube (1). A fixing strip (202) is fixedly connected to the rear side of the outer wall of the support plate (201). A fixing frame (203) is slidably connected to the front side of the outer wall of the fixing strip (202). A fixing block (204) is fixedly connected to the rear side of the outer wall of the fixing frame (203). A pulley (205) is rotatably connected to the middle of the inner wall of the fixing frame (203). A spring plate (206) is slidably connected to the rear side of the outer wall of the pulley (205). The spring plate (206) engages with the fixing block (204).

3. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 1, characterized in that: The outer wall of the adjusting rod (15) is threaded with multiple screws (16).

4. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 1, characterized in that: A movable plate (17) is fixedly connected to one side of the inner wall of the movable groove (12).

5. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 4, characterized in that: The inner wall of the movable plate (17) is threaded with a bolt (18).

6. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 1, characterized in that: The support rod (11) has connecting holes (19) at the left and right ends of its outer wall.

7. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 2, characterized in that: A gasket (20) is fixedly connected to one side of the outer wall of the spring plate (206).

8. The channel refinement mechanism for a modular microchannel aluminum flat tube according to claim 1, characterized in that: The gasket (20) has an exhaust hole (21) in the middle of its inner wall.

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