A finned heat exchanger

Abstract

The utility model relates to heat exchanger technical field discloses a kind of finned heat exchanger, comprising: support, including side plate and support cylinder, side plate is symmetrically fixed in the both ends of support cylinder;Butt joint pipe head, is located in two side plates mutually far side, and opening is opposite and is arranged;Copper pipe, between two side plates, two ends are respectively passed two side plates and communicate with butt joint pipe head, including inner tube and outer tube, inner tube is located in the inside of support cylinder and is located in the axis of butt joint pipe head, and outer tube is located in the outside of support cylinder and is close to butt joint pipe head edge and is equipped with several;Fin, fixedly arranged on the side wall of support cylinder, and equidistantly arranged several along the length direction of support cylinder, the center hole of matching inner tube is opened in the center of insertion support cylinder interior, and inner wall and inner tube outer wall closely adhere, fin outer wall and outer tube side wall contact.The utility model has the advantages of: equidistantly arranged fluid pipe, heat exchange is evenly sufficient, fluid shunt reduces and appears contact thermal resistance.

Description

Technical Field

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

[0002] Finned heat exchangers are devices that improve heat transfer efficiency by expanding the heat exchange area, and are widely used in air conditioning, refrigeration, and HVAC systems. Their core structure consists of metal fins added to the surface of a metal tube, increasing the contact area with the fluid. During operation, the high-temperature or low-temperature medium flowing inside the tube exchanges heat with the fluid flowing outside through the tube wall and fins.

[0003] In actual operation, finned heat exchangers often suffer from insufficient heat exchange between the fins and the fluid tubes, hindering the improvement of overall heat exchange efficiency. The core issue lies in the tendency for contact thermal resistance to form at the joint between the two. When the connection between the fins and the fluid tube is not tight enough, significant heat loss occurs during the transfer process. Utility Model Content

[0004] To solve the above-mentioned problems, this utility model proposes a finned heat exchanger with equidistantly spaced fluid tubes, uniform and sufficient heat exchange, and reduced contact thermal resistance due to fluid diversion.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a finned heat exchanger, comprising:

[0006] The bracket includes side plates and a support cylinder, wherein the side plates are symmetrically fixed at both ends of the support cylinder;

[0007] The connectors are located on two side plates, away from each other, with their openings facing away from each other;

[0008] A copper tube is located between two side plates, with both ends passing through the two side plates and communicating with the connecting pipe head. It includes an inner tube and an outer tube. The inner tube is located inside the support cylinder and on the central axis of the connecting pipe head. Several outer tubes are located outside the support cylinder near the edge of the connecting pipe head.

[0009] Fins are fixedly disposed on the side wall of the support cylinder and are evenly spaced along the length of the support cylinder. The center of each fin extends into the inside of the support cylinder and has a central hole that matches the inner tube. The inner wall of the fin is tightly fitted to the outer wall of the inner tube, and the outer wall of the fin is in contact with the side wall of the outer tube.

[0010] Furthermore, the support cylinder is a square cylinder.

[0011] Furthermore, the outer tube is provided with four sets on the four sides near the connecting tube head, and each set of outer tubes is provided with two symmetrically arranged.

[0012] Furthermore, a support plate is provided between the side plate and the connecting pipe head, which is simultaneously fixedly connected to each copper pipe.

[0013] Furthermore, the outer tube is disposed within the arc-shaped surface with the center of the four sides of the fin recessed inward.

[0014] Compared with existing technologies, the advantages of this invention are as follows: The fluid pipe structure is equidistantly distributed, with the core pipes arranged along the central axis and the peripheral pipes symmetrically distributed around the perimeter, ensuring even spacing between each group of pipes. This layout allows the fluid to be evenly distributed to each channel during flow, avoiding localized flow concentration or gaps, and ensuring that all areas of the fins can fully participate in heat exchange, significantly improving overall heat exchange efficiency. Simultaneously, the symmetrically distributed pipe design effectively balances the forces generated by fluid impact, reducing contact gaps caused by pipe deformation, thereby lowering contact thermal resistance and further ensuring the stability of heat exchange performance. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is the front view of this utility model;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is the utility model Figure 1 Enlarged view of section A.

[0019] As shown in the figure: 1. Side plate; 2. Support cylinder; 3. Connecting pipe joint; 4. Inner tube; 5. Outer tube; 6. Fins; 7. Support plate. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 1 Appendix Figure 2 A finned heat exchanger includes a support frame, comprising a side plate 1 and a support cylinder 2. The side plate 1 is symmetrically fixed at both ends of the support cylinder 2. The support cylinder 2 is a square cylinder, which can provide a more stable mounting plane for the fins 6, improve the connection between the fins and the support structure, and facilitate the layout planning of the outer tube 5 on the side.

[0022] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3The connecting pipe 3 is located on two side plates 1, positioned away from each other, with their openings facing away from each other. A copper pipe, located between the two side plates 1, passes through both side plates 1 and connects to the connecting pipe 3. It includes an inner pipe 4 and an outer pipe 5. The inner pipe 4 is located inside the support cylinder 2 and on the central axis of the connecting pipe 3. Several outer pipes 5 are located outside the support cylinder 2 near the edge of the connecting pipe 3. Four groups of outer pipes 5 are located on the four sides of the connecting pipe 3, with two outer pipes symmetrically arranged in each group. This evenly distributes the fluid channels, increases the heat exchange contact area, and the symmetrical structure balances the pipeline stress, reducing the risk of deformation during use. A support plate 7 is located between the side plate 1 and the connecting pipe 3, simultaneously fixedly connected to each copper pipe. The support plate 7 provides additional fixed support for each copper pipe, enhancing the overall structural stability of the pipeline and reducing vibration wear under fluid impact.

[0023] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 4 Fins 6 are fixedly mounted on the side wall of the support cylinder 2, and are evenly spaced along the length of the support cylinder 2. Each fin has a central hole extending into the support cylinder 2, matching the center hole of the inner tube 4. The inner wall of the fin 6 is tightly fitted to the outer wall of the inner tube 4, and the outer wall of the fin 6 contacts the side wall of the outer tube 5. The fin 6 has four concave arc-shaped surfaces on its four sides, within which the outer tube 5 is located. The contact area between the arc-shaped surfaces of the fin 6 and the outer tube 5 is increased, improving heat transfer efficiency. The arc-shaped structure also provides protection for the tube body, reducing the risk of damage from external forces.

[0024] The specific implementation of this utility model is as follows: In use, the fluid to be exchanged for heat enters the heat exchanger through the connecting pipe 3 on one side. The fluid is first divided into two paths: one flows into the inner tube 4 located at the center of the inner side of the support cylinder 2, and the other is evenly distributed to the four sets of outer tubes 5 on the outer side of the support cylinder 2. During the fluid flow, the support plate 7 between the side plate 1 and the connecting pipe 3 provides stable support for each copper tube, effectively reducing vibration caused by fluid impact. When the fluid flows inside the copper tubes, heat is transferred through the copper tube wall to the fins 6 fixed to the side wall of the support cylinder 2. Since the fins 6 are evenly distributed along the length of the support cylinder 2, and their four arc-shaped surfaces are in close contact with the outer tubes 5, and the central hole is in full contact with the outer wall of the inner tube 4, heat can be transferred quickly and evenly between the fins 6 and the copper tubes. After sufficient heat exchange, the fluids in the inner tube 4 and the outer tubes 5 merge and flow out through the connecting pipe 3 with its opening facing away from the other side, completing the entire heat exchange process.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A finned heat exchanger, characterized in that, include: The bracket includes a side plate (1) and a support cylinder (2), wherein the side plate (1) is symmetrically fixed at both ends of the support cylinder (2); The connector (3) is located on one side of the two side plates (1) and the openings are opposite to each other; A copper tube is located between two side plates (1), with both ends passing through the two side plates (1) and communicating with the connecting pipe (3). It includes an inner tube (4) and an outer tube (5). The inner tube (4) is located inside the support cylinder (2) and on the central axis of the connecting pipe (3). The outer tube (5) is located outside the support cylinder (2) near the edge of the connecting pipe (3). Fins (6) are fixed on the side wall of the support cylinder (2) and are arranged at equal intervals along the length of the support cylinder (2). The center of each fin extends into the inside of the support cylinder (2) and has a central hole that matches the inner tube (4). The inner wall of the fin is tightly fitted to the outer wall of the inner tube (4), and the outer wall of the fin (6) is in contact with the side wall of the outer tube (5).

2. The finned heat exchanger according to claim 1, characterized in that: The support cylinder (2) is a square cylinder.

3. A finned heat exchanger according to claim 1, characterized in that: The outer tube (5) is provided with four sets on the four sides near the connecting tube head (3), and each set of outer tubes (5) is provided with two symmetrically.

4. A finned heat exchanger according to claim 1, characterized in that: A support plate (7) is provided between the side plate (1) and the connecting pipe (3) and is fixedly connected to each copper pipe.

5. A finned heat exchanger according to claim 1, characterized in that: The fins (6) have inwardly recessed arc-shaped surfaces on all four sides, and the outer tube (5) is located within the arc-shaped surfaces.

Images