Microchannel finned tube

Abstract

The utility model discloses a kind of microchannel finned tube, it is related to radiator technical field, including top horizontal pipe, bottom horizontal pipe, finned tube, the butt joint bellows is equidistantly arranged in the axial direction in top horizontal pipe outer wall, bottom horizontal pipe outer wall, the butt joint bellows end is provided with butt joint flange, the both ends of finned tube are fixedly provided with end flange, the butt joint flange is fixedly arranged to end flange side using butt joint bolt, top horizontal pipe side is equidistantly provided with auxiliary compression component, auxiliary compression component is convenient for user to compress butt joint bellows.The main structure of this finned tube includes top horizontal pipe, bottom horizontal pipe and finned tube, and the both ends of finned tube are indirectly connected with top horizontal pipe and bottom horizontal pipe through bellows, with good flexible compensation effect, compared with traditional rigid connection mode, the structure can effectively absorb thermal expansion and contraction deformation caused by temperature difference change, reduce stress concentration of connecting part, avoid weld cracking or sealing failure.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, and in particular to a microchannel finned tube. Background Technology

[0002] Microchannel finned tubes are heat exchange elements used to enhance heat transfer. They are typically composed of multiple parallel-arranged microchannels with external fins, which can significantly improve heat exchange efficiency. The diameter of the internal channels is generally in the millimeter or even micrometer range, enabling efficient heat exchange within a limited space. They are widely used in air conditioning, condensers, automotive radiators, and other fields. By using microchannels to enhance fluid turbulence and improve heat conduction performance, the fins increase the heat exchange area, effectively reducing the system volume and weight.

[0003] In existing technologies, finned tubes are typically rigidly connected to the inlet and outlet pipes at both ends via flange bolts. Although the structure is stable, under the influence of thermal expansion and contraction or external vibration, the rigid connection is prone to stress concentration at the connection points, resulting in leakage or damage, which affects the system's sealing performance and service life. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the existing technology, the two ends of the finned tube are usually rigidly connected to the inlet and outlet pipes by flange bolts. Although the structure is stable, under the action of thermal expansion and contraction or external vibration, the rigid connection is prone to stress concentration at the connection point, resulting in leakage or damage, which affects the sealing performance and service life of the system. Therefore, a microchannel finned tube is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A microchannel finned tube includes a top horizontal tube, a bottom horizontal tube, and a finned tube. The outer walls of the top horizontal tube and the bottom horizontal tube are equidistantly provided with corrugated tubes along the axial direction. A connecting flange is provided at the end of the connecting corrugated tube. End flanges are fixedly provided at both ends of the finned tube. The connecting flanges are fixed to the side of the end flanges by connecting bolts.

[0007] The top horizontal tube is provided with auxiliary compression components at equal intervals on its side. The auxiliary compression components make it easier for users to compress the corrugated tube, thereby making it easier for the finned tube to be inserted between the top horizontal tube and the bottom horizontal tube for fixed installation.

[0008] Optionally, one end of each of the top and bottom horizontal tubes is threaded with an end cap, and a rotating handle is fixedly provided on the side of the end cap.

[0009] Optionally, the auxiliary compression assembly includes a right-angle rod, a release fork, and a release lever, with one end of the right-angle rod fixedly disposed on the side of the top horizontal tube.

[0010] Optionally, the top of the release rod is provided with a clearance groove, and the other end of the right-angle rod is rotatably disposed on one side of the inner cavity of the clearance groove.

[0011] Optionally, a release fork is fixedly provided at the other end of the release rod, and a driven shoulder is fixedly provided on the outer wall of the docking bellows, with the release fork extending into one side of the driven shoulder.

[0012] Optionally, the inner width of the release fork is greater than the inner diameter of the driven shoulder, and the inner width of the release fork is less than the outer diameter of the driven shoulder.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. The main structure of this finned tube includes a top horizontal tube, a bottom horizontal tube, and finned tubes. The finned tubes are indirectly connected to the top and bottom horizontal tubes at both ends via corrugated pipes, providing excellent flexibility and compensation. Compared to traditional rigid connections, this structure effectively absorbs thermal expansion and contraction caused by temperature changes, reduces stress concentration at the connection points, and prevents weld cracking or seal failure. Simultaneously, the corrugated pipes also buffer external mechanical vibrations, improving the stability and safety of the system operation.

[0015] 2. This finned tube has auxiliary compression components equidistantly arranged on the side of the top horizontal tube, which facilitates the user's compression of the corrugated tube. This makes it easier for the finned tube to be inserted between the top and bottom horizontal tubes for fixed installation. The auxiliary compression components can act on the outer wall of the corrugated tube, causing axial compression deformation during installation, thereby shortening the overall connection length. This makes it easier for the user to accurately insert the finned tube into the installation position between the top and bottom horizontal tubes. This not only improves the docking efficiency of the corrugated tube, but also reduces the difficulty of manual adjustment during installation. It ensures that the finned tube can be quickly positioned and firmly installed during assembly, improving assembly efficiency and structural reliability. It is suitable for mass production and on-site installation conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the connection structure between the top horizontal tube and the force-saving release component.

[0018] Figure 3 This is a structural schematic diagram of the top horizontal pipe and its connecting parts.

[0019] Figure 4 This is a structural diagram of the connecting bellows and the force-saving release component.

[0020] In the diagram: 1. Top horizontal tube; 2. End cap; 21. Rotating handle; 3. Finned tube; 4. End flange; 5. Bottom horizontal tube; 6. Connecting bolt; 7. Connecting flange; 8. Connecting bellows; 9. Driven shoulder; 10. Release fork; 11. Right angle rod; 12. Clearance groove; 13. Release rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A microchannel finned tube includes a top horizontal tube 1, a bottom horizontal tube 5, and a finned tube 3. Metal rings are equidistantly arranged on the outer wall of the finned tube 3. Corrugated pipes 8 are equidistantly arranged on the outer wall of the top horizontal tube 1 and the outer wall of the bottom horizontal tube 5 along the axial direction. A connecting flange 7 is provided at the end of the connecting corrugated pipe 8. End flanges 4 are fixedly provided at both ends of the finned tube 3. The connecting flanges 7 are fixed to the side of the end flanges 4 by connecting bolts 6. The top horizontal tube 1 and the bottom horizontal tube 5 serve as the liquid inlet channels for the entire finned tube 3.

[0023] Both the top horizontal tube 1 and the bottom horizontal tube 5 have an end cap 2 screwed into one end. The top horizontal tube 1 and the bottom horizontal tube 5 have external threads at the corresponding positions of the end cap 2. A rotating handle 21 is fixedly installed on the side of the end cap 2. The end cap 2 is used to close one end of the top horizontal tube 1 and the bottom horizontal tube 5. The rotating handle 21 makes it easy for the user to rotate the end cap 2. One end of the top horizontal tube 1 and the bottom horizontal tube 5 away from the end cap 2 is an open end, which is connected to an external fluid pipeline.

[0024] Auxiliary compression components are equidistantly arranged on the side of the top horizontal tube 1. These components facilitate the user's compression of the corrugated pipe 8, thereby enabling the finned tube 3 to be inserted between the top horizontal tube 1 and the bottom horizontal tube 5 for fixed installation. The auxiliary compression components include a right-angle rod 11, a release fork 10, and a release rod 13. One end of the right-angle rod 11 is fixedly disposed on the side of the top horizontal tube 1. The top of the release rod 13 has a clearance groove 12. The other end of the right-angle rod 11 is rotatably disposed on one side of the cavity of the clearance groove 12. The other end of the release rod 13 is fixedly disposed with a release mechanism. The fork 10 is fixedly provided with a driven shoulder 9 on the outer wall of the corrugated tube 8. The release fork 10 extends into one side of the driven shoulder 9. The inner width of the release fork 10 is greater than the inner diameter of the driven shoulder 9, and the inner width of the release fork 10 is less than the outer diameter of the driven shoulder 9. The bottom end of the right-angle rod 11 is close to one end of the release fork 10. When the user holds one end of the release rod 13, the driven shoulder 9 can be easily pried by the release fork 10 due to the lever principle, thereby compressing the corrugated tube 8 and making it easier for both ends of the finned tube 3 to be inserted between the top horizontal tube 1 and the bottom horizontal tube 5.

[0025] The specific implementation steps and principles of this utility model are as follows:

[0026] When installing the finned tube 3 between the top horizontal tube 1 and the bottom horizontal tube 5, one end of the release rod 13 is held manually. The release rod 13 rotates around the right-angle rod 11. Through the leverage effect, the release rod 13 drives the release fork 10 and the driven shoulder 9 to compress the corrugated tube 8. Finally, the holes of the connecting flanges 7 at both ends of the finned tube 3 are aligned with the holes of the end flange 4 at the end of the corrugated tube 8. The connecting bolts 6 are passed through the holes of the connecting flanges 7 and the end flange 4 to fix the top horizontal tube 1, the finned tube 3, and the bottom horizontal tube 5 in sequence.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A micro-channel finned tube comprising a top horizontal tube (1), a bottom horizontal tube (5), a finned tube (3), characterized in that, The outer wall of the top cross pipe (1) and the outer wall of the bottom cross pipe (5) are provided with butt joint corrugated pipes (8) equidistantly along the axial direction, the butt joint corrugated pipes (8) are provided with butt joint flanges (7) at the ends, the finned pipes (3) are provided with end flanges (4) at both ends, and the butt joint flanges (7) are fixed to the side surfaces of the end flanges (4) by butt joint bolts (6). The side surface of the top cross pipe (1) is provided with an auxiliary compression assembly, which facilitates the user to compress the butt joint corrugated pipe (8), so as to facilitate the finned pipe (3) to be inserted between the top cross pipe (1) and the bottom cross pipe (5) for fixed installation.

2. The micro-channel finned tube according to claim 1, wherein The end cover (2) is screwed into one end of the top cross pipe (1) and the bottom cross pipe (5), and the side surface of the end cover (2) is fixedly provided with a rotating handle (21).

3. The micro-channel finned tube according to claim 1, wherein The auxiliary compression assembly comprises a right-angle rod (11), a release fork (10) and a release rod (13), and one end of the right-angle rod (11) is fixedly arranged on the side surface of the top cross pipe (1).

4. A micro-channel finned tube according to claim 3, wherein The release rod (13) is provided with an avoiding slot (12) at the top, and the other end of the right-angle rod (11) is rotatably arranged on one side surface of the inner cavity of the avoiding slot (12).

5. A micro-channel finned tube according to claim 3, wherein The other end of the release rod (13) is fixedly provided with a release fork (10), the outer wall of the butt joint corrugated pipe (8) is fixedly provided with a driven shoulder (9), and the release fork (10) extends into one side surface of the driven shoulder (9).

6. A micro-channel finned tube according to claim 3, wherein The inner cavity width of the release fork (10) is greater than the inner diameter diameter of the driven shoulder (9), and the inner cavity width of the release fork (10) is less than the outer diameter diameter of the driven shoulder (9).

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