Efficient heat exchange fin and heat exchanger

Abstract

The utility model discloses an efficient heat exchange fin, which belongs to the technical field of heat exchangers and comprises a fin body and connecting pipes connected to the fin body, the fin body is of a wave-shaped structure and is provided with a wave crest part and a wave trough part, and the wave crest part and the wave trough part are fixedly connected with a plurality of connecting pipes in a penetrating manner. Auxiliary pipes are fixedly installed at the two opposite ends of the connecting pipe, the two ends of each auxiliary pipe are through and communicate with the connecting pipe, the auxiliary pipes and the connecting pipe are used for allowing a copper pipe to pass through, protruding parts are arranged on the outer walls of the auxiliary pipes and are of a threaded structure, and blade angles are arranged on the sides, away from the auxiliary pipes, of the protruding parts. According to the efficient heat exchange fin, the heat conduction effect of the connecting pipe is enhanced, and more heat around the connecting pipe can be taken away. The utility model further provides a heat exchanger with the efficient heat exchange fin.

Description

Technical Field

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

[0002] A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. Also known as a heat exchanger, it works by transferring heat through a solid wall or direct contact, and is widely used in chemical, petroleum, and food industries. A plate heat exchanger consists of a series of stacked metal plates, with flow channels formed between adjacent plates. During installation, copper tubes for the medium flow pass through the plates. When the high-temperature medium flows through the copper tubes, heat is transferred to the plates. At the same time, cool air flows through the aforementioned flow channels, carrying away the heat transferred to the plates, thus achieving cooling. Depending on the plate shape, heat exchangers can be classified as corrugated heat exchangers, straight heat exchangers, and dome-shaped plate heat exchangers. When installing copper tubes on the plates, regardless of the type of heat exchanger, a connecting pipe is generally fixedly installed on the plate, with the copper tube passing through the connecting pipe to achieve a fixed connection between the copper tube and the plate. Currently, manufacturers are continuously improving the heat dissipation methods of heat exchange plates to enhance heat exchange efficiency. However, there has been little improvement in the connecting pipes used to fix copper tubes. The connecting pipes are the first components to come into contact with the copper tubes, and their heat transfer efficiency cannot be ignored. High-efficiency heat exchange connecting pipes can greatly improve heat exchange efficiency. Based on this, the inventors have improved the heat exchange fins in order to improve heat exchange efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned defects in the prior art, it is necessary to provide a fin with high heat exchange efficiency;

[0004] It is also necessary to provide a heat exchanger with the fins.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-efficiency heat exchange fin, including a fin body and a connecting pipe connected to the fin body. The fin body has a wave-shaped structure, with wave crests and wave troughs. Multiple connecting pipes are fixedly connected through the wave crests and wave troughs. Auxiliary pipes are fixedly installed at opposite ends of the connecting pipes. The two ends of the auxiliary pipes are connected and communicate with each other. The auxiliary pipes and connecting pipes are used for copper pipes to pass through. A protrusion is provided on the outer wall of the auxiliary pipe. The protrusion has a threaded structure, and a cutting edge is provided on the side of the protrusion away from the auxiliary pipe.

[0006] Furthermore, both the crest and trough portions are provided with through holes that mate with the connecting pipe. An overlapping plate extends outward from the outer wall of the connecting pipe. The overlapping plate has an arc-shaped plate structure. The overlapping plate of the connecting pipe installed on the crest portion fits into the crest portion, and the overlapping plate of the connecting pipe installed on the trough portion fits into the trough portion.

[0007] Furthermore, the overlapping plate and the connecting pipe are integrally formed.

[0008] Furthermore, the auxiliary tube is threadedly connected to the connecting tube.

[0009] Furthermore, the auxiliary pipe includes a sleeve section and a connecting section that are connected to each other. The sleeve section and the connecting section are coaxially arranged. The sleeve section is threadedly connected to the connecting pipe. Both the sleeve section and the connecting section are provided with protrusions.

[0010] Furthermore, the inner diameter of the socket segment is larger than the inner diameter of the connecting segment, and a limiting step is formed at the connection between the socket segment and the connecting segment, which can abut against the end of the connecting pipe.

[0011] Furthermore, the inner diameter of the connecting pipe and the inner diameter of the connecting section are the same as the outer diameter of the copper pipe.

[0012] Furthermore, an operation blind hole is provided at the end of the connecting segment away from the socket segment.

[0013] A heat exchanger includes the high-efficiency heat exchange fins described in any of the preceding claims, and further includes a frame and copper tubes. The frame includes two opposing support plates, and the copper tubes are serpentine tubes that pass through auxiliary tubes and connecting tubes and are fixedly connected to the support plates.

[0014] The beneficial effects of this invention are as follows: The high-efficiency heat exchange fins or heat exchanger of this invention have a protrusion on the auxiliary tube outside the connecting tube, which increases the area of ​​the outer surface of the protrusion, thereby increasing the heat exchange area and facilitating efficient heat dissipation. Simultaneously, the sharp angle on one side of the protrusion helps reduce wind resistance, ensuring that the cool air can fully act on the auxiliary tube. Furthermore, the threaded structure of the protrusion allows the airflow acting on the auxiliary tube to flow along the spiral arc for a certain distance, extending the interaction time between the air and the auxiliary tube, thus helping to remove more heat from around the connecting tube. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a perspective view of the high-efficiency heat exchange fins of this utility model;

[0017] Figure 2 yes Figure 1 A magnified view of a portion A in the high-efficiency heat exchange fin shown;

[0018] Figure 3 yes Figure 1 A top view of the high-efficiency heat exchange fins shown;

[0019] Figure 4 yes Figure 3 The high-efficiency heat exchange fins shown are cross-sectional views along BB.

[0020] Figure 5 This is a schematic diagram of the heat exchanger of this utility model.

[0021] In the diagram: 1. Fin body, 11. Crest, 12. Trough, 110. Through hole, 111. Flow channel, 2. Connecting pipe, 21. Overlap plate, 3. Auxiliary pipe, 31. Protrusion, 32. Cutting edge, 33. Sleeve, 330. Limiting step, 34. Connecting section, 341. Blind hole, 4. Frame, 41. Support plate, 42. Fixing column, 5. Copper pipe, 51. Straight pipe section, 52. Arc-shaped section. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Please see Figures 1-5 This utility model provides a high-efficiency heat exchange fin, including a fin body 1 and a connecting pipe 2 connected to the fin body 1. The fin body 1 has a wave-shaped structure and has a crest portion 11 and a trough portion 12. Multiple connecting pipes 2 are fixedly connected through the crest portion 11 and the trough portion 12. Auxiliary pipes 3 are fixedly fitted at opposite ends of the connecting pipes 2. The two ends of the auxiliary pipes 3 are open and communicate with the connecting pipes 2. The auxiliary pipes 3 and the connecting pipes 2 are used for copper pipes to pass through. A protrusion 31 is provided on the outer wall of the auxiliary pipe 3. The protrusion 31 has a threaded structure. A cutting edge 32 is provided on the side of the protrusion 31 away from the auxiliary pipe 3.

[0024] In this invention, the high-efficiency heat exchange fins allow the heat medium to flow through the copper tube, simultaneously transferring heat to the connecting pipe 2 and the auxiliary pipe 3. Furthermore, the heat is transferred through the connecting pipe 2 and the auxiliary pipe 3 to the protrusion 31 on the outside of the auxiliary pipe 3. Because the protrusion 31 has a threaded structure, its outer surface area is increased, thereby improving the heat exchange area and facilitating efficient heat dissipation. Simultaneously, setting the free side of the protrusion 31 (i.e., the side away from the auxiliary pipe 3) as a cutting edge 32 helps reduce the air resistance flowing radially through the auxiliary pipe 3 along the connecting pipe 2, ensuring that the cool air can fully act on the auxiliary pipe 3. In addition, the threaded structure of the protrusion 31 allows the airflow acting on the auxiliary pipe 3 to flow along a spiral arc for a certain distance, extending the interaction time between the airflow and the auxiliary pipe 3, thus helping to remove more heat from around the connecting pipe 2. Furthermore, the auxiliary pipe 3 enhances the structural strength of the connecting pipe 2, facilitating a stable connection between the connecting pipe 2 and the copper tube.

[0025] In this embodiment, the connecting pipe 2 is a circular pipe structure that extends through both ends. An overlapping plate 21 extends outward from the outer wall of the connecting pipe 2. The overlapping plate 21 has an arc-shaped plate structure. The overlapping plate 21 of the connecting pipe 2 installed on the crest portion 11 fits into the crest portion 11, and the overlapping plate 21 installed on the trough portion 12 fits into the trough portion. Simultaneously, both the crest portion 11 and the trough portion 12 are provided with through holes 110 that mate with the connecting pipe 2, and the connecting pipe 2 passes through the through holes 11. During installation, the connecting pipe 2 is first passed through the through hole 110, and then the overlapping plate 21 is fitted into the corresponding crest portion 11 or trough portion 12. At this point, the overlapping plate 21 can be fixedly connected to the fin body 1 by bolts or welding.

[0026] The overlapping plate 21 fits snugly against the crest portion 11 or trough portion 12, which on the one hand enables quick positioning of the connecting pipe 2 during installation, and also ensures the connection strength of the connecting pipe 2, preventing the connecting pipe 2 from easily moving relative to the fin body 1; on the other hand, the overlapping plate 21 increases the contact area between the connecting pipe 2 and the fin body 1, increasing the heat conduction area and thus facilitating heat exchange. In this embodiment, the overlapping plate 21 and the connecting pipe 2 are integrally formed, which facilitates processing and also helps to save production costs.

[0027] In this embodiment, the auxiliary pipe 3 is threadedly connected to the connecting pipe 2. Specifically, the auxiliary pipe 3 includes a sleeve section 33 and a connecting section 34 that are connected to each other. The sleeve section 33 and the connecting section 34 are coaxially arranged. The sleeve section 33 is threadedly connected to the connecting pipe 2. Both the sleeve section 33 and the connecting section 34 are provided with protrusions 31.

[0028] Furthermore, the inner diameter of the socket section 33 is larger than the inner diameter of the connecting section 34. A limiting step 330 is formed at the connection between the socket section 33 and the connecting section 34. When the user threaded the socket section 33 onto the connecting pipe 2, the auxiliary pipe 3 is installed in place when the socket section 33 is gradually screwed in until the limiting step 330 abuts against the end of the connecting pipe 2. This facilitates the user to quickly install the auxiliary pipe 3.

[0029] In addition, the inner diameter of the connecting pipe 2 and the inner diameter of the connecting section 34 are the same as the outer diameter of the copper pipe. Thus, when the copper pipe passes through the auxiliary pipe 3 and the connecting pipe 2 at the same time, the inner wall of the connecting pipe 2 and the inner wall of the connecting section 34 are in contact with the outer wall of the copper pipe, thereby increasing the heat conduction area and facilitating the full transfer of heat from the flowing medium in the copper pipe to the connecting pipe 2 and the auxiliary pipe 3.

[0030] In one specific embodiment, an operating blind hole 341 is provided at the end of the connecting section 34 away from the socket section 33. The operating blind hole 341 is used for inserting a screwdriver to rotate the auxiliary tube 3, thereby installing the auxiliary tube 3 onto the connecting tube 2. It can be understood that the shape of the operating blind hole 341 can be triangular, quadrilateral, or hexagonal, and the user can use a triangular screwdriver, a square screwdriver, or an Allen screwdriver to rotate the auxiliary tube 3 accordingly.

[0031] This utility model also provides a heat exchanger, which includes the aforementioned multiple high-efficiency heat exchange fins, as well as a frame 4 and a copper tube 5. The frame 4 includes two opposing support plates 41, which are fixedly connected by a fixing column 42. The copper tube 5 is a serpentine tube, which includes a straight tube section 51 and an arc-shaped section 52 connected between the two straight tube sections. The straight tube section 51 passes through both the auxiliary tube 3 and the connecting tube 2 and is fixedly welded to the auxiliary tube 3. The two ends of the straight tube section 51 are fixedly connected to the two support plates 41 respectively, and the arc-shaped section 52 is located on the side of the support plate 41 away from the straight tube section 51.

[0032] In addition, the space between each pair of adjacent fin bodies 1 forms a flow channel 111, which is used for cold air to flow through. The cold air can be formed by artificially set fans or by natural wind. Figure 5 The wind flowing through circulation channel 111 is perpendicular to the paper surface.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-efficiency heat exchange fin, comprising a fin body and a connecting pipe connected to the fin body, characterized in that: The fin body has a wave-like structure, with crests and troughs. Multiple connecting pipes are fixedly connected to the crests and troughs. Auxiliary pipes are fixedly installed at opposite ends of the connecting pipes. The auxiliary pipes are open at both ends and communicate with the connecting pipes. The auxiliary pipes and connecting pipes are used to allow copper pipes to pass through. The outer wall of the auxiliary pipe has a protrusion with a threaded structure. A cutting edge is provided on the side of the protrusion away from the auxiliary pipe.

2. The high-efficiency heat exchange fin as described in claim 1, characterized in that: Both the crest and trough portions are provided with through holes that mate with the connecting pipe. An overlapping plate extends outward from the outer wall of the connecting pipe. The overlapping plate has an arc-shaped plate structure. The overlapping plate of the connecting pipe installed on the crest portion fits into the crest portion, and the overlapping plate of the connecting pipe installed on the trough portion fits into the trough portion.

3. The high-efficiency heat exchange fin as described in claim 2, characterized in that: The overlapping plate and the connecting pipe are integrally formed.

4. The high-efficiency heat exchange fin as described in claim 1, characterized in that: The auxiliary pipe is threadedly connected to the connecting pipe.

5. The high-efficiency heat exchange fin as described in claim 4, characterized in that: The auxiliary pipe includes a sleeve section and a connecting section that are connected to each other. The sleeve section and the connecting section are coaxially arranged. The sleeve section is threadedly connected to the connecting pipe. Both the sleeve section and the connecting section are provided with protrusions.

6. The high-efficiency heat exchange fin as described in claim 5, characterized in that: The inner diameter of the socket section is larger than the inner diameter of the connecting section, and a limiting step is formed at the connection between the socket section and the connecting section. The limiting step can abut against the end of the connecting pipe.

7. The high-efficiency heat exchange fin as described in claim 5, characterized in that: The inner diameter of the connecting pipe and the inner diameter of the connecting section are the same as the outer diameter of the copper pipe.

8. The high-efficiency heat exchange fin as described in claim 5, characterized in that: An operation blind hole is provided at one end of the connecting segment away from the socket segment.

9. A heat exchanger, characterized in that: The heat exchanger includes the high-efficiency heat exchange fins as described in any one of claims 1-8, and also includes a frame and copper tubes. The frame includes two opposing support plates, and the copper tubes are serpentine tubes that pass through auxiliary tubes and connecting tubes and are then fixedly connected to the support plates.

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