Fin structure of shutter heat exchanger

Abstract

The utility model provides a fin structure of a shutter heat exchanger, which relates to the technical field of heat exchangers, and comprises a fin body and a windowing group, the fin body is provided with a plurality of rows of through holes, each row of through holes is provided with a plurality of groups at equal intervals, and the through holes are provided with serial pipes; the fin body is provided with a plurality of through holes, the window opening sets are arranged on the fin body on the two sides between every two adjacent sets of through holes, the window opening sets on the two sides face the opposite directions, each window opening set is composed of a plurality of window pieces, and each window piece is in a window shape with an opening formed by cutting one face open and stretching the two end faces and bending one face. On the basis of a third-generation bridge piece, the window piece is constructed, original two-face cutting is changed into single-face cutting, the two end faces are stretched, one face is bent to form a window like an open face, the single face is opened, on the premise that heat exchange efficiency is guaranteed, the overall strength of the fin is improved, the fin is not prone to damage, more fin bodies can be connected in series, and the heat exchange efficiency is improved. And the heat exchange effect is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a louvered heat exchanger fin structure. Background Technology

[0002] The heat exchanger fins are the heart of the entire heat exchanger industry. Their materials, design, and tube arrangement all influence the overall quality and performance of the heat exchanger. They have undergone continuous iteration not only in materials but also in design. For example, the first generation of fins were flat fins, simply perforated to insert copper tubes; these were the simplest heat exchanger fins. Later, to increase the heat exchange area, the second generation of fins was developed: corrugated fins. These increased the heat exchange area compared to the first-generation flat fins by bending the flat fins at regular angles within the same volume. This increases the overall heat exchange area, but since the air needs to blow in from one side, this angle cannot be increased indefinitely. It is generally controlled within 5 to 30 degrees. An excessively large angle will increase the wind resistance. The wind resistance parameter needs to be moderate. Too fast a wind speed will not effectively utilize the heat exchanger, and too slow a wind speed will reduce the energy efficiency of the heat exchange. Therefore, a suitable wind speed is reasonable. As a result, the third generation of fins, the high-bridge fin, was developed. It is based on the second generation of corrugated fins, which connects the fin layers in series to make the heat exchanger perform at its best.

[0003] However, the third-generation high-bridge fins, such as Figure 1 The existing heat exchanger has the following drawbacks: because the high-bridge fins are made by cutting two sides of the fin plane and stretching the other two sides to raise a surface shape resembling a "bridge", their service life is not long under long-term exposure to airflow, temperature difference exchange, and oxidation, and they may even break. The effect of the bridges in series in adjacent fin layers is acceptable, but they cannot be better connected to the third layer, so the heat exchanger cannot be fully utilized. The bridges are prone to vibration under the action of wind, and although the noise generated is not large, it is difficult to eliminate. Therefore, this utility model proposes a louvered heat exchanger fin structure to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, this utility model proposes a louvered heat exchanger fin structure. The louvered heat exchanger fin structure constructs a window slat, changing the original two-sided cut to a single-sided cut. By stretching both ends and bending one side, an open "window" is formed. The single-sided opening increases the overall strength of the fins and makes them less prone to damage while ensuring heat exchange efficiency.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a louvered heat exchanger fin structure, including a fin body and a window assembly, wherein the fin body is provided with perforations, and the perforations are arranged in multiple rows, and each row of perforations is provided with multiple sets at equal intervals, and the perforations are provided with series pipes.

[0006] The fin body at both sides between two adjacent sets of perforations is provided with the window group, and the window groups on both sides face opposite directions. The window group is composed of multiple window pieces, and the window pieces are single-sided cut and formed into an opening by stretching the two end faces and bending one side.

[0007] A further improvement is that the window slat is integrally formed with the fin body, and the bending angle of the window slat is 35°-50°.

[0008] A further improvement is that the outer side of the window is open, the inner side is inclined, and both ends of the window are closed.

[0009] A further improvement is that each set of window panels has at least four columns, with the outer two columns being double sets of window panels and the inner two columns being single sets of window panels.

[0010] A further improvement is that the window assembly is trapezoidal, and the arc edges at both ends of the window assembly are adapted to the outer arc of the series tube.

[0011] A further improvement is that a series step is provided at the connection between the lower part of the series tube and the fin body, and a series protrusion is provided above the series tube, the series protrusion being adapted to the series step.

[0012] A further improvement is that the series steps are integrally formed with the fin body, and the series tube is integrally formed with the series convex ring.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Based on the third-generation bridge plate, this utility model constructs a window plate, changing the original two-sided cutting to a single-sided cutting. By stretching the two end faces and bending one side, an open "window" is formed. The single-sided opening increases the overall strength of the fins and makes them less prone to damage while ensuring heat exchange efficiency.

[0015] 2. The opening window of this utility model forms an angle, which can guide the incoming air to run along a certain path. With the support of controlling the opening angle, more fins can be connected in series, which greatly improves the heat exchange effect.

[0016] 3. The structure of this utility model is more stable, the heat exchange effect is better, and no noise is generated. Under the same design requirements, it saves raw materials and workload. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of existing technology;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 This is a top view of the present invention;

[0021] Figure 5 This is a schematic diagram of the series air duct of this utility model.

[0022] Among them: 1. Finned body; 2. Perforation; 3. Series tube; 4. Window; 5. Series step; 6. Series convex ring. Detailed Implementation

[0023] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. Example 1

[0024] according to Figure 2 , 3 As shown in Figures 4 and 5, this embodiment proposes a louvered heat exchanger fin structure, including a fin body 1 and a window assembly. The fin body 1 is provided with perforations 2, and the perforations 2 are provided in multiple rows. Each row of perforations 2 is provided with multiple sets at equal intervals. The perforations 2 are provided with series pipes 3.

[0025] The fin body 1 at both sides between two adjacent sets of perforations 2 is provided with the window group, and the window groups on both sides face opposite directions. The window group is composed of multiple window pieces 4, and the window piece 4 is a window shape with a single-sided cut, which is formed by stretching the two end faces and bending one side. In use, based on the third-generation bridge plate, the window piece 4 is constructed by changing the original two-sided cut to a single-sided cut. By stretching the two end faces and bending one side, an open "window" is formed. The single-sided opening increases the overall strength of the fin while ensuring heat exchange efficiency, making it less prone to damage. Moreover, the open window piece 4 forms an angle, which can guide the incoming air to run along a certain path. With the support of controlling the opening angle, more fin bodies 1 can be connected in series, which greatly improves the heat exchange effect.

[0026] The window slat 4 is integrally formed with the fin body 1, and the bending angle of the window slat 4 is 45°. The outer side of the window slat 4 is open, the inner side is inclined, and both ends of the window slat 4 are closed. Each set of window slats 4 has four rows, with the outer two rows having double sets of window slats 4 and the inner two rows having single sets of window slats 4. The window set is trapezoidal, and the arc edges at both ends of the window set are adapted to the outer arc of the series pipe 3. In use, the copper pipe passes through the series pipe 3, and the window sets are set on both sides between two adjacent sets of perforations 2 to form an air duct. The opened window slat 4 will form an angle, which can guide the incoming air to run along a certain path. With the control of the window opening angle, the heat exchange effect is greatly improved. Example 2

[0027] according to Figure 2 , 3 As shown in Figures 4 and 5, this embodiment proposes a louvered heat exchanger fin structure, including a fin body 1 and a window assembly. The fin body 1 is provided with perforations 2, and the perforations 2 are provided in multiple rows. Each row of perforations 2 is provided with multiple sets at equal intervals. The perforations 2 are provided with series pipes 3.

[0028] The fin body 1 at both sides between two adjacent sets of perforations 2 is provided with the window group, and the window groups on both sides face opposite directions. The window group is composed of multiple window pieces 4, and the window piece 4 is a window shape with a single-sided cut, which is formed by stretching the two end faces and bending one side. In use, based on the third-generation bridge plate, the window piece 4 is constructed by changing the original two-sided cut to a single-sided cut. By stretching the two end faces and bending one side, an open "window" is formed. The single-sided opening increases the overall strength of the fin while ensuring heat exchange efficiency, making it less prone to damage. Moreover, the open window piece 4 forms an angle, which can guide the incoming air to run along a certain path. With the support of controlling the opening angle, more fin bodies 1 can be connected in series, which greatly improves the heat exchange effect.

[0029] A series step 5 is provided at the connection between the lower part of the series tube 3 and the fin body 1, and a series protrusion 6 is provided above the series tube 3. The series protrusion 6 is adapted to the series step 5. The series step 5 is integrally formed with the fin body 1, and the series tube 3 is integrally formed with the series protrusion 6. In use, multiple sets of fin bodies 1 are stacked and connected together. The series protrusion 6 of the lower fin body 1 is inserted into the series step 5 of the upper fin body 1 to achieve stable connection. The opened window 4 will form an angle, which can guide the incoming air to run along a certain path. Connecting more fin bodies 1 in series greatly improves the heat exchange effect. The fin surface utilization rate is higher, the air velocity is excellent, and the heat exchange of each fin body 1 is uniform, resulting in the best heat exchange effect. The structure is stable, the noise caused by the air blowing is low, and the service life is good. It is suitable for use in effective environmental control, especially in places where there are requirements for shape design and heat exchange effect. Under the same conditions, its manufacturing cost is the lowest.

[0030] Based on the third-generation bridge fin structure, this louvered heat exchanger features a window fin 4. The original two-sided cutting has been changed to a single-sided cutting. By stretching both ends and bending one side, an open "window" is formed. This single-sided opening increases the overall strength of the fins while maintaining heat exchange efficiency, making them less prone to damage. Furthermore, the open window fin 4 forms an angle, guiding the incoming air along a specific path. By controlling the opening angle, more fins 1 can be connected in series, significantly improving heat exchange efficiency. Simultaneously, this product has a more stable structure, better heat exchange performance, and produces no noise. Under the same design requirements, it saves on raw materials and workload.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A louver heat exchanger fin structure comprising a fin body (1) and a louver group, characterized by: The fin body (1) is provided with perforations (2), and the perforations (2) are provided with multiple rows, each row of the perforations (2) is provided with multiple groups at equal intervals, and the perforations (2) are provided with series pipes (3); The fin body (1) is provided with the windowing groups at both sides between two adjacent groups of the perforations (2), and the windowing groups at both sides face opposite directions, the windowing groups are composed of multiple groups of window sheets (4), and the window sheets (4) are window-shaped by cutting one side, stretching both end sides and bending one side; The window sheets (4) are integrally formed with the fin body (1), the bending angle of the window sheets (4) is 35-50°, the outer side of the window sheets (4) is open, the inner side is inclined, and both end sides of the window sheets (4) are closed, each group of the windowing groups is provided with at least four rows of the window sheets (4), two rows of the window sheets (4) on the outer side are arranged in two groups, two rows of the window sheets (4) on the inner side are arranged in one group, the windowing groups are trapezoidal, the arc edges at both ends of the windowing groups are adapted to the outer arc of the series pipes (3), the connecting part between the series pipes (3) and the fin body (1) is provided with a series step (5), the upper part of the series pipes (3) is provided with a series convex ring (6), the series convex ring (6) is adapted to the series step (5), the series step (5) is integrally formed with the fin body (1), and the series pipes (3) are integrally formed with the series convex ring (6).

Images