A modular and scalable finned heat exchanger

The modular design of the connecting rods and fixing bolts solves the problem of the fins not being able to be disassembled and assembled individually, enabling detachable installation of the fins and improving the efficiency of the heat exchanger.

CN224285610UActive Publication Date: 2026-05-26GUANGZHOU DITAN AIR-CONDITIONING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU DITAN AIR-CONDITIONING EQUIP CO LTD
Filing Date
2025-08-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In traditional finned heat exchangers, the fins cannot be disassembled and installed individually, so the entire unit must be replaced when damaged, which affects the efficiency of use.

Method used

The modular design connects the upper and lower fins with connecting rods and fixing bolts, and uses a limiting ring to fix the position, enabling the fins to be detached and installed.

Benefits of technology

This allows for the individual disassembly and assembly of the fins, improving work efficiency and avoiding the waste of replacing the entire fins.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of heat exchanger technology, specifically a modular expandable finned heat exchanger, including a heat exchange shell. The modular expandable finned heat exchanger includes a pipe and a connecting rod. The surface of the pipe is in contact with upper and lower fins via a limiting ring. The connecting rod is connected to several fixing bolts, and both the upper and lower fins are simultaneously connected to the fixing bolts. The connecting rod is also connected to a limiting sleeve. The advantages of this utility model are: the upper and lower fins can be fixed by the connecting rod and the fixing bolts on its surface, thereby making them in contact with the pipe surface; the position of the pipe can be fixed by the limiting ring; and the corresponding upper and lower fins can be removed by rotating the fixing bolts, eliminating the need for overall replacement and improving work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a modular and expandable finned heat exchanger. Background Technology

[0002] A heat exchanger is an energy-saving device that enables heat transfer between two or more fluids at different temperatures. Traditional heat exchangers consist of a heat exchange shell and finned tubes. When finned tubes are installed vertically, the cooling process of the finned tubes is an important and critical step.

[0003] Chinese patent CN217716086U discloses an extended finned heat exchanger device, including a heat exchange shell, a finned tube installed inside the heat exchange shell, the finned tube being welded to the heat exchange shell, spiral fins welded to the outer end of the finned tube, an inlet connector installed at the upper end of the finned tube, an outlet connector installed at the bottom end of the finned tube, a limiting component installed between the finned tube and the outlet and inlet connectors, an inner liner inside the finned tube, and an outer liner outside the inner liner, with a liquid inlet at the upper end of the outer liner. This device allows for manual control of a pressing component, with a spring moving a locking block downwards to facilitate the removal of the connectors for replacement when needed. The spiral fins on the finned tubes provide dust protection. The finned tubes are equipped with liquid inlets and outlets, and cooling is achieved by filling them with coolant, thus ensuring the service life of the finned heat exchanger.

[0004] However, in the aforementioned patent, the finned tubes and heat exchange shell are welded together, and the fins are also welded to the surface of the finned tubes. Therefore, this device cannot individually disassemble and assemble some fins, and when some fins are damaged, the entire device must be replaced, which is not conducive to the use of the heat exchanger. To address this issue, this utility model proposes a modular and expandable finned heat exchanger to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a modular and expandable finned heat exchanger to solve the problem mentioned in the background art that the fins cannot be disassembled and assembled individually.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular expandable finned heat exchanger, including a heat exchange shell, wherein the modular expandable finned heat exchanger includes: a pipe and a connecting rod, the surface of the pipe is in contact with upper and lower fins through a limiting ring, the connecting rod is connected to a number of fixing bolts, the upper and lower fins are simultaneously connected to the fixing bolts, and the connecting rod is connected to a limiting sleeve.

[0007] Preferably, an inlet connection is fixedly connected to the upper end of one side of the heat exchange shell, and an outlet connection is fixedly connected to the lower end of the other side of the heat exchange shell. The two ends of the pipe are respectively detachably equipped with an outlet connection and an inlet connection.

[0008] Preferably, the surface of the connecting rod is fitted with several fixing bolts, one end of the connecting rod passes through the heat exchange shell and is threadedly connected to a limiting sleeve, and one side of the limiting sleeve is in close contact with the heat exchange shell.

[0009] Preferably, the surface of the pipe has a flow port, the pipe has an outer liner, and the outer liner has an inner liner. The inner liner and the outer liner are not connected, and the inlet and outlet connections are connected to the inner liner.

[0010] Preferably, the upper fin has grooves at both ends and the lower fin has protrusions at both ends. The protrusions are inserted into the grooves, and the threaded end of the fixing bolt passes through the grooves and the protrusions. The fixing bolt is threadedly connected to both the upper and lower fins.

[0011] Preferably, a number of limiting rings are fixedly connected to the surface of the pipe, and the inner arc surfaces of the upper and lower fins are in close contact with the surface of the pipe, and the limiting rings are in close contact with both sides of the upper and lower fins.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the upper and lower fins can be fixed by the connecting rod and the fixing bolts on its surface, so that they come into contact with the pipe surface; the position of the pipe can be fixed by the limiting ring; and the corresponding upper and lower fins can be removed by rotating the fixing bolts, without the need for overall replacement, thus improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a side view of part of the pipe of this utility model;

[0015] Figure 3 This is a cross-sectional view of part of the pipeline of this utility model;

[0016] Figure 4 This is a schematic diagram showing the upper fin of this utility model located on one side of the lower fin.

[0017] In the diagram: 1. Heat exchanger shell; 2. Fixing bolt; 3. Pipe; 4. Inlet connection; 5. Outlet connection; 6. Inner liner; 7. Flow port; 8. Outer liner; 9. Limiting sleeve; 10. Limiting ring; 11. Upper fin; 12. Lower fin; 13. Protrusion; 14. Groove; 15. Connecting rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a modular expandable finned heat exchanger, including a heat exchange shell 1. The modular expandable finned heat exchanger includes: pipes 3 and connecting rods 15. An inlet connection port 4 is fixedly connected to the upper end of one side of the heat exchange shell 1, and a high-temperature medium enters from the inlet connection port 4. An outlet connection port 5 is fixedly connected to the lower end of the other side of the heat exchange shell 1, and the high-temperature medium can be discharged from the outlet connection port 5 after heat dissipation. The two ends of the pipes 3 are respectively detachably installed with outlet connection port 5 and inlet connection port 4, and the high-temperature medium can be cooled down in the pipes 3. The pipes 3 are interconnected through the heat exchange shell 1. Several fixing bolts 2 are sleeved on the surface of the connecting rod 15. One end of the connecting rod 15 passes through the heat exchange shell 1 and is threadedly connected to a limiting sleeve 9. The limiting sleeve 9 can fix the connecting rod 15. One side of the limiting sleeve 9 is in close contact with the heat exchange shell 1 to prevent the device from sliding.

[0020] During the use of the device, the high-temperature medium in pipe 3 can be cooled, and pipe 3 can be fixed by connecting rod 15.

[0021] The surface of pipe 3 has a flow port 7, which facilitates the injection and discharge of liquids such as coolant. An outer liner 8 is located inside pipe 3 for the flow of media such as coolant. An inner liner 6 is located inside the outer liner 8 for the flow of high-temperature media. The inner liner 6 is not connected to the outer liner 8. The inlet connection port 4 and the outlet connection port 5 are both connected to the inner liner 6 to facilitate flow. Grooves 14 are located at both ends of the upper fin 11, and protrusions 13 are located at both ends of the lower fin 12. The grooves 14 and protrusions 13 are shaped to fit together, and the protrusions 13 are inserted into the grooves 14. The threaded end of the fixing bolt 2 passes through... The groove 14 and the protrusion 13 are connected together. At this time, the upper fin 11 and the lower fin 12 are spliced ​​together and fixed to each other. The fixing bolt 2 is threadedly connected to both the upper fin 11 and the lower fin 12. Several limiting rings 10 are fixedly connected to the surface of the pipe 3. The limiting rings 10 can fix and support the pipe 3. The inner arc surfaces of the upper fin 11 and the lower fin 12 are in close contact with the surface of the pipe 3. The lower fin 12 can support the pipe 3. The limiting rings 10 are in close contact with both sides of the upper fin 11 and the lower fin 12. At this time, the positions of the upper fin 11 and the lower fin 12 are fixed and will not shift.

[0022] When the high-temperature medium enters the inner liner 6 of the pipe 3, the coolant in the outer liner 8 will cool it down initially. At the same time, the pipe 3 increases the heat dissipation area through the upper fin 11 and lower fin 12 connected to it, thereby cooling down. The upper fin 11 and lower fin 12 are fixed and installed by fixing the position of the upper fin 11 and lower fin 12 through the connecting rod 15 and the limiting ring 10.

[0023] When this device is working, the upper fin 11 and the lower fin 12 can dissipate heat from the pipe 3. When it is necessary to disassemble and replace a single upper fin 11 or lower fin 12, simply rotate the corresponding fixing bolt 2. At this time, the upper fin 11 can be disconnected from the lower fin 12. Then rotate the limiting sleeve 9 and pull out the connecting rod 15. At this time, the lower fin 12 can be disassembled. When installing, insert the upper fin 11 and the lower fin 12 between the two limiting rings 10 and then interlock them. Then, the fixing bolt 2 can be passed through the groove 14 and the protrusion 13 in sequence. Reinsert the connecting rod 15 to complete the installation.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular, expandable finned heat exchanger, comprising a heat exchange shell (1), characterized in that: The modular expandable finned heat exchanger includes: a pipe (3) and a connecting rod (15). The surface of the pipe (3) is in contact with an upper fin (11) and a lower fin (12) through a limiting ring (10). The connecting rod (15) is connected to several fixing bolts (2). The upper fin (11) and the lower fin (12) are simultaneously connected to the fixing bolts (2). The connecting rod (15) is connected to a limiting sleeve (9).

2. The modular and expandable finned heat exchanger according to claim 1, characterized in that: The upper end of one side of the heat exchange shell (1) is fixedly connected to an inlet connection port (4), and the lower end of the other side of the heat exchange shell (1) is fixedly connected to an outlet connection port (5). The two ends of the pipe (3) are respectively detachably installed with an outlet connection port (5) and an inlet connection port (4).

3. A modular and expandable finned heat exchanger according to claim 1, characterized in that: The surface of the connecting rod (15) is fitted with several fixing bolts (2). One end of the connecting rod (15) passes through the heat exchange shell (1) and is threadedly connected to a limiting sleeve (9). One side of the limiting sleeve (9) is in close contact with the heat exchange shell (1).

4. A modular and expandable finned heat exchanger according to claim 1, characterized in that: The surface of the pipe (3) is provided with a flow port (7), the pipe (3) is provided with an outer liner (8), the outer liner (8) is provided with an inner liner (6), the inner liner (6) and the outer liner (8) are not connected, and the inlet connection port (4) and the outlet connection port (5) are both connected to the inner liner (6).

5. A modular and expandable finned heat exchanger according to claim 1, characterized in that: The upper fin (11) has grooves (14) at both ends, and the lower fin (12) has protrusions (13) at both ends. The protrusions (13) are inserted into the grooves (14), and the threaded end of the fixing bolt (2) passes through the grooves (14) and the protrusions (13). The fixing bolt (2) is threadedly connected to both the upper fin (11) and the lower fin (12).

6. A modular and expandable finned heat exchanger according to claim 1, characterized in that: The surface of the pipe (3) is fixedly connected with several limiting rings (10). The inner arc surfaces of the upper fin (11) and the lower fin (12) are in close contact with the surface of the pipe (3). The two sides of the upper fin (11) and the lower fin (12) are in close contact with the limiting rings (10).