High-efficiency plate-fin heat exchanger

Abstract

The utility model relates to heat exchanger technical field especially, it is a kind of high -efficient plate fin heat exchanger, including sleeve, the sleeve is equipped in the outer wall of main heat exchange pipe, the outer wall of main heat exchange pipe is welded with connecting plate, the outer wall of connecting plate is equipped with bolt hole, the outer wall of sleeve is welded with multiple secondary heat exchange pipes, the side welding screw rod of secondary heat exchange pipe, the screw rod passes bolt hole and is fastened by nut located connecting plate both sides, the outer wall of secondary heat exchange pipe is equipped with heat conduction ring, the outer wall of heat conduction ring is welded with multiple radiating fins, the other side of secondary heat exchange pipe is connected with connecting pipe, the connecting pipe is communicated with external secondary heat exchange equipment, this high -efficient plate fin heat exchanger is convenient to dismount, effectively promotes heat exchange efficiency, and simultaneously sets up multiple secondary heat exchange pipes, secondary heat exchange pipe is communicated with external equipment respectively by connecting pipe, realizes the heat exchange of multiple equipment with main heat exchange pipe simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a high-efficiency plate-fin heat exchanger. Background Technology

[0002] Finned tube heat exchangers, also known as tube-fin heat exchangers, are characterized by numerous fins on the outer or inner surface of the heat exchanger tubes. The connection between the fins and the tube surface must be tight and seamless; otherwise, the contact thermal resistance at the connection point will be high, affecting heat transfer efficiency. Common connection methods include heat jacketing, embedding, tension winding, and welding. In addition, finned tubes can also be manufactured using methods such as integral rolling, integral casting, or machining. For example, patent (CN113739604B) describes a high-efficiency, detachable, wide-channel plate heat exchanger. Corrugated fins are arranged between the first and second plates of the heat exchange plate to facilitate faster heat conduction and thus accelerate heat exchange. However, its structure is relatively complex and has the disadvantage of being difficult to disassemble and assemble. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency plate-fin heat exchanger.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a high-efficiency plate-fin heat exchanger, including a sleeve fitted on the outer wall of a main heat exchange tube. A connecting plate is welded to the outer wall of the main heat exchange tube, and bolt holes are formed on the outer wall of the connecting plate. Multiple secondary heat exchange tubes are welded to the outer wall of the sleeve. A screw is welded to one side of each secondary heat exchange tube, and the screw passes through the bolt holes and is fastened by nuts located on both sides of the connecting plate. A heat-conducting ring is fitted on the outer wall of each secondary heat exchange tube, and multiple heat dissipation fins are welded to the outer wall of the heat-conducting ring. A connecting pipe is connected to the other side of each secondary heat exchange tube, and the connecting pipe is connected to an external secondary heat exchange device.

[0006] Preferably, the heat-conducting ring is a heat-conducting metal ring, and a slot is provided on the heat-conducting ring, through which the secondary heat exchange tube passes.

[0007] Preferably, the heat-conducting ring has multiple heat exchange grooves axially formed on it.

[0008] Preferably, the heat dissipation fins are annular heat dissipation fins, and the annular inner cavity of the heat dissipation fins is filled with heat dissipation rubber rings.

[0009] Preferably, the sleeve is a double-layered hollow sleeve, and an injection tube is radially inserted into the outer wall of the sleeve, with a sealing plug inserted into the outer opening of the injection tube.

[0010] Preferably, the inner wall of the sleeve has multiple axial grooves and two radial grooves, which are located at both ends of the axial grooves, and one of the radial grooves is connected to the glue injection tube.

[0011] The present invention proposes a high-efficiency plate-fin heat exchanger, which has the following advantages: it is easy to disassemble and assemble. The disassembly and assembly process only requires the sleeve to be placed on the main heat exchange tube and then fixed by screws and nuts. After installation, thermally conductive adhesive can be injected into the sleeve through the adhesive injection tube so that the connection surface between the main heat exchange tube and the sleeve can be covered with thermally conductive adhesive, which effectively improves the heat exchange efficiency. At the same time, multiple secondary heat exchange tubes are set, and the secondary heat exchange tubes are connected to external equipment through connecting pipes, so that multiple devices can exchange heat with the main heat exchange tube at the same time. Attached Figure Description

[0012] Figure 1 This is an isometric view of a high-efficiency plate-fin heat exchanger proposed in this utility model;

[0013] Figure 2 This is a cross-sectional view (AA) of a high-efficiency plate-fin heat exchanger proposed in this utility model.

[0014] Figure 3 This is a side view of a high-efficiency plate-fin heat exchanger proposed in this utility model;

[0015] Figure 4 This is an exploded view of a high-efficiency plate-fin heat exchanger proposed in this utility model;

[0016] Figure 5 This is a schematic diagram of the sleeve structure of a high-efficiency plate-fin heat exchanger proposed in this utility model.

[0017] In the diagram: 1. Main heat exchanger tube, 2. Connecting tube, 3. Sleeve, 4. Secondary heat exchanger tube, 5. Heat conduction ring, 6. Heat dissipation fins, 7. Screw, 8. Connecting plate, 9. Injection tube, 10. Axial groove, 11. Radial groove, 12. Slot, 13. Heat exchange slot. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1A high-efficiency plate-fin heat exchanger includes a sleeve 3, which is fitted onto the outer wall of a main heat exchange tube 1. A connecting plate 8 is welded to the outer wall of the main heat exchange tube 1, and bolt holes are opened on the outer wall of the connecting plate 8. Multiple secondary heat exchange tubes 4 are welded to the outer wall of the sleeve 3. A screw 7 is welded to one side of the secondary heat exchange tube 4. The screw 7 passes through the bolt holes and is fastened by nuts located on both sides of the connecting plate 8. A heat-conducting ring 5 is fitted onto the outer wall of the secondary heat exchange tube 4, and multiple heat dissipation fins 6 are welded to the outer wall of the heat-conducting ring 5. A connecting pipe 2 is connected to the other side of the secondary heat exchange tube 4, and the connecting pipe 2 is connected to an external secondary heat exchange device. The main heat exchange tube 1 provides a heat source for the secondary heat exchange tubes 4 to achieve heat exchange. Gas or liquid can pass through the main heat exchange tube 1. The sleeved connection between the main heat exchange tube 1 and the secondary heat exchange tubes 4 facilitates disassembly and assembly. During disassembly and assembly, it is only necessary to loosen the nuts located on both sides of the connecting plate 8.

[0020] Reference Figure 4 The heat-conducting ring 5 is a heat-conducting metal ring with a slot 12. The secondary heat exchange tube 4 passes through the slot 12. Multiple heat exchange grooves 13 are axially formed on the heat-conducting ring 5. The heat-conducting ring 5 serves to fix multiple secondary heat exchange tubes 4 and to form multiple secondary heat exchange tubes 4 into a whole, making the heat exchange process more uniform.

[0021] Reference Figure 4 The heat dissipation fins 6 are annular heat dissipation fins, and the annular inner cavity of the heat dissipation fins 6 is filled with heat dissipation rubber rings. The sleeve 3 is a double-layer hollow sleeve, and the outer wall of the sleeve 3 is radially connected to the glue injection tube 9. The outer opening of the glue injection tube 9 is connected to the sealing rubber plug. The heat dissipation rubber rings play a role in protecting the multiple heat exchange tubes 4, while increasing the heat exchange area, making the heat exchange more uniform and efficient.

[0022] Reference Figure 5 The inner wall of the sleeve 3 has multiple axial grooves 10 and two radial grooves 11. The radial grooves 11 are located at both ends of the axial grooves 10. One of the radial grooves 11 is connected to the glue injection pipe 9. After installation, thermally conductive glue can be injected into the sleeve 3 through the glue injection pipe 9, so that the connection surface between the main heat exchange tube 1 and the sleeve 3 can be covered with thermally conductive glue, effectively improving the heat exchange efficiency.

[0023] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency plate-fin heat exchanger, comprising a sleeve (3), characterized in that, The sleeve (3) is fitted onto the outer wall of the main heat exchange tube (1). A connecting plate (8) is welded to the outer wall of the main heat exchange tube (1). Bolt holes are opened on the outer wall of the connecting plate (8). Multiple secondary heat exchange tubes (4) are welded to the outer wall of the sleeve (3). A screw (7) is welded to one side of the secondary heat exchange tube (4). The screw (7) passes through the bolt holes and is fastened by nuts located on both sides of the connecting plate (8). A heat-conducting ring (5) is fitted onto the outer wall of the secondary heat exchange tube (4). Multiple heat dissipation fins (6) are welded to the outer wall of the heat-conducting ring (5). A connecting pipe (2) is connected to the other side of the secondary heat exchange tube (4). The connecting pipe (2) is connected to an external secondary heat exchange device.

2. The high-efficiency plate-fin heat exchanger according to claim 1, characterized in that, The heat-conducting ring (5) is a heat-conducting metal ring, and a slot (12) is provided on the heat-conducting ring (5), through which the secondary heat exchange tube (4) passes.

3. The high-efficiency plate-fin heat exchanger according to claim 1, characterized in that, Multiple heat exchange grooves (13) are axially formed on the heat-conducting ring (5).

4. The high-efficiency plate-fin heat exchanger according to claim 1, characterized in that, The heat dissipation fins (6) are annular heat dissipation fins, and the annular inner cavity of the heat dissipation fins (6) is filled with heat dissipation rubber rings.

5. A high-efficiency plate-fin heat exchanger according to claim 1, characterized in that, The sleeve (3) is a double-layer hollow sleeve. A glue injection tube (9) is radially inserted into the outer wall of the sleeve (3), and a sealing plug is inserted into the outer opening of the glue injection tube (9).

6. A high-efficiency plate-fin heat exchanger according to claim 1, characterized in that, The inner wall of the sleeve (3) has multiple axial grooves (10) and two radial grooves (11). The radial grooves (11) are located at both ends of the axial grooves (10), and one of the radial grooves (11) is connected to the glue injection tube (9).

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