Tube fin type heat exchanger

Abstract

The utility model discloses a tube fin type heat exchanger which comprises a heat exchange tube and heat insulation hollow columns, the hollow columns are arranged at the two ends of the heat exchange tube respectively, the hollow column on one side is connected with a liquid inlet pipe and a liquid return pipe, the hollow column on the other side is connected with a uniform mixing assembly, a frame is connected between the top end and the bottom end of the hollow column, and the frame is connected with the liquid inlet pipe and the liquid return pipe. The other end of the frame is connected with a connecting cylinder, a turbofan is connected in the connecting cylinder, and a plurality of fins are connected between the adjacent heat exchange tubes. Compared with the prior art, the utility model has the advantages that the homogeneity of air heat exchange is improved, and the experience feeling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a tube-fin heat exchanger. Background Art

[0002] As a compact heat exchanger, tube-fin heat exchanger is widely used in the refrigeration industry.

[0003] Some of the heat exchange tubes in the existing tube-fin heat exchangers adopt a two-way setting, that is, the heat exchange tubes go back and forth between the two end columns. In this way, the air exchanges heat with the heat exchange tubes on the liquid inlet side and the heat exchange tubes on the liquid return side respectively before being discharged. As a result, the heat of the air discharged on the liquid inlet side and the liquid return side is not homogeneous, which reduces the comfort experience. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the air heat exchange is not homogeneous, which reduces the comfort of the experience.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a tube-fin heat exchanger, comprising a heat exchange tube and a thermally insulating hollow column, the hollow columns are arranged at both ends of the heat exchange tube, a liquid inlet pipe and a liquid return pipe are connected to the hollow column on one side, and a mixing component is connected to the hollow column on the other side, a frame is connected between the top and bottom ends of the hollow column, a connecting tube is connected to the other end of the frame, a turbofan is connected in the connecting tube, and a plurality of fins are connected between adjacent heat exchange tubes.

[0008] Furthermore, a partition is connected to the middle of the hollow column on one side, and the liquid inlet pipe and the liquid return pipe are respectively arranged on both sides of the partition, so as to separate the imported heat exchange fluid from the discharged heat exchange fluid.

[0009] Furthermore, the mixing component includes a motor connected to the hollow column on the other side, and a rotating shaft is connected to the power output end of the motor. The rotating shaft rotates and penetrates the hollow column. A number of stirring rods are evenly distributed in an array and connected to the rotating shaft. By starting the motor, the motor drives the stirring rods through the rotating shaft to mix the heat exchange fluid in the hollow column, so that the temperature difference of the heat exchange fluid on the liquid inlet pipe and the liquid return pipe side is reduced, thereby facilitating the improvement of the uniformity of air heat exchange.

[0010] Furthermore, a dust screen is connected to one side of the frame away from the connecting tube, and the dust screen is arranged to block dust out, thereby preventing the heat exchange efficiency of the heat exchange tubes and fins from being affected after the dust is introduced.

[0011] Furthermore, the fin includes a plurality of first inclined plates and second inclined plates, the first inclined plates and the second inclined plates are spaced apart, and both ends of the first inclined plates and the second inclined plates are respectively connected between the heat exchange tubes in adjacent horizontal planes, so as to increase the contact area between the heat exchange tubes and the air.

[0012] Furthermore, the connecting tube is a conical structure, which facilitates the guidance of air through the conical structure and the mixing of air after heat exchange.

[0013] 3. Beneficial Effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] Through the coordinated arrangement of the heat exchange tube, hollow column, liquid inlet pipe, liquid return pipe, mixing component, frame, connecting tube, turbofan and fin, it is convenient to introduce the heat exchange fluid into the hollow column on one side through the liquid inlet pipe under the drive of the circulation pump, and then introduce it into the hollow column on the other side through the heat exchange tube, and then mix it through the mixing component and then lead it out through the return pipe after the heat exchange tube. By starting the turbofan, the turbofan introduces external air through one side of the fin, and then leads it out through the connecting tube, so as to facilitate heat exchange between air and heat exchange fluid. By the fluid going back and forth between the two hollow columns, it is convenient to extend the flow time of the heat exchange fluid in the heat exchange tube, so as to improve the heat exchange efficiency between the heat exchange fluid and the air; and the arrangement of the mixing component is convenient to enhance the homogeneity between the fluids in the hollow column, and to improve the uniformity of air heat exchange; and the arrangement of the turbofan is convenient to enhance the air flow rate, enhance the mixing and convection of the fluid, thereby improving the heat transfer efficiency, and at the same time, it can also mix the air after heat exchange, and further promote the homogeneity of air heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a tube-fin heat exchanger.

[0017] Figure 2 The utility model is a schematic diagram of a top view of the structure of a tube-fin heat exchanger.

[0018] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA.

[0019] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of BB.

[0020] As shown in the figure: 1. heat exchange tube, 2. hollow column, 3. liquid inlet pipe, 4. liquid return pipe, 5. frame, 6. connecting tube, 7. turbofan, 8. fin, 9. partition, 10. motor, 11. stirring rod, 12. dust screen, 13. first inclined plate, 14. second inclined plate. DETAILED DESCRIPTION

[0021] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0022] Embodiment 1

[0023] Combined with the attached Figure 1 , Figure 2 , Figure 3 , a finned tube heat exchanger includes a heat exchange tube 1 and a heat-insulating hollow column 2. The hollow column 2 is disposed at both ends of the heat exchange tube 1. A liquid inlet pipe 3 and a liquid return pipe 4 are connected to one side of the hollow column 2. A partition 9 is connected to the middle of one side of the hollow column 2. The liquid inlet pipe 3 and the liquid return pipe 4 are disposed on both sides of the partition 9. A frame 5 is connected between the top end and the bottom end of the hollow column 2. The other end of the frame 5 is connected with a connecting cylinder 6. The connecting cylinder 6 is of a conical structure. A dust-proof net 12 is connected to the side of the frame 5 away from the connecting cylinder 6. A vortex fan 7 is connected inside the connecting cylinder 6. A plurality of fins 8 are connected between adjacent heat exchange tubes 1. The fins 8 include a plurality of first inclined plates 13 and second inclined plates 14. The first inclined plates 13 and the second inclined plates 14 are arranged at intervals. The two ends of the first inclined plates 13 and the second inclined plates 14 are respectively connected between the heat exchange tubes 1 of adjacent horizontal planes.

[0024] Through the cooperative setting of the heat exchange tube 1, the hollow column 2, the liquid inlet pipe 3, the liquid return pipe 4, the frame 5, the connecting cylinder 6, the vortex fan 7 and the fins 8, it is convenient to make the heat exchange fluid flow back and forth between the two hollow columns 2 through the heat exchange tube 1 under the drive of the circulation pump, which is convenient to extend the flowing time of the heat exchange fluid in the heat exchange tube 1, and thus improve the heat exchange efficiency between the heat exchange fluid and the air; the setting of the vortex fan 7 is convenient to forcibly drive the air flow, improve the air flow rate, and thus improve the heat exchange efficiency between the heat exchange fluid and the air.

[0025] Embodiment 2

[0026] Combined with the attached Figure 4 , a mixing assembly is connected to the other side of the hollow column 2. The mixing assembly includes a motor 10 connected to the other side of the hollow column 2. The power output end of the motor 10 is connected with a rotating shaft. The rotating shaft rotates through the hollow column 2. A plurality of stirring rods 11 are uniformly arranged and connected to the rotating shaft.

[0027] After being mixed by the mixing component in the above structure, it is led out through the return pipe 4 after passing through the heat exchange pipe 1. By starting the motor 10, the motor 10 drives the stirring rod 11 through the rotating shaft to mix the heat exchange fluid in the hollow column 2, reducing the temperature difference of the heat exchange fluid on the side of the liquid inlet pipe 3 and the return pipe 4, and thus facilitating the improvement of the uniformity of air heat exchange.

[0028] The specific usage method is as follows:

[0029] First, the heat exchange fluid is introduced into one side of the hollow column 2 through the liquid inlet pipe 3 under the drive of an external circulation pump, then introduced into the other side of the hollow column 2 through the heat exchange pipe 1, and then led out through the return pipe 4 after being mixed by the mixing component and passing through the heat exchange pipe 1. The heat exchange fluid shuttles back and forth between the two hollow columns 2 through the heat exchange pipe 1.

[0030] Then, by starting the vortex fan 7, the external air is introduced from one side of the fin 8. The setting of the dust-proof net 12 facilitates blocking dust outside, avoiding the influence of dust on the heat exchange efficiency of the heat exchange pipe 1 and the fin 8. The setting of the vortex fan 7 facilitates enhancing the air flow rate and the convective effect between the air and the heat exchange pipe 1, thereby improving the heat transfer efficiency. At the same time, it can also mix the heat-exchanged air, further promoting the homogeneity of air heat exchange, and then led out through the connecting cylinder 6, which is convenient for heat exchange between the air and the heat exchange fluid. By shuttling the fluid between the two hollow columns 2, it is convenient to extend the flowing time of the heat exchange fluid in the heat exchange pipe 1, and thus improve the heat exchange efficiency between the heat exchange fluid and the air. The first inclined plate 13 and the second inclined plate 14 are arranged at intervals, and the two ends of the first inclined plate 13 and the second inclined plate 14 are respectively connected between the heat exchange pipes 1 on adjacent horizontal planes, which is convenient for increasing the contact area between the heat exchange pipe 1 and the air.

[0031] In order to make the heat exchange between the heat exchange fluid and the air more uniform, the setting of the mixing component facilitates enhancing the homogeneity between the fluids in the hollow column 2 and improving the uniformity of air heat exchange. By starting the motor 10, the motor 10 drives the stirring rod 11 through the rotating shaft to mix the heat exchange fluid in the hollow column 2, reducing the temperature difference of the heat exchange fluid on the side of the liquid inlet pipe 3 and the return pipe 4, and thus facilitating the improvement of the uniformity of air heat exchange. The connecting cylinder 6 is of a conical structure, which is convenient for guiding the air through the conical structure and facilitating the mixing of the air after heat exchange.

[0032] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0034] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A tube-fin heat exchanger, comprising a heat exchange tube (1) and a heat-insulating hollow column (2), wherein the hollow column (2) is disposed at both ends of the heat exchange tube (1), and is characterized in that: A liquid inlet pipe (3) and a liquid return pipe (4) are connected to the hollow column (2) on one side, and a mixing assembly is connected to the hollow column (2) on the other side. A frame (5) is connected between the top and bottom ends of the hollow column (2), and a connecting tube (6) is connected to the other end of the frame (5). A turbofan (7) is connected inside the connecting tube (6), and a plurality of fins (8) are connected between adjacent heat exchange tubes (1).

2. A tube-fin heat exchanger according to claim 1, characterized in that: A partition plate (9) is connected to the middle of the hollow column (2) on one side, and the liquid inlet pipe (3) and the liquid return pipe (4) are respectively arranged on both sides of the partition plate (9).

3. The tube-fin heat exchanger according to claim 1, characterized in that: The mixing component comprises a motor (10) connected to the hollow column (2) on the other side, a rotating shaft is connected to the power output end of the motor (10), the rotating shaft rotates and penetrates the hollow column (2), and a plurality of stirring rods (11) are connected to the rotating shaft in an evenly distributed array.

4. The tube-fin heat exchanger according to claim 1, characterized in that: The frame (5) is connected to a dust-proof net (12) on the side away from the connecting tube (6).

5. The tube-fin heat exchanger according to claim 1, characterized in that: The fin (8) comprises a plurality of first inclined plates (13) and second inclined plates (14), wherein the first inclined plates (13) and the second inclined plates (14) are arranged at intervals, and the two ends of the first inclined plates (13) and the second inclined plates (14) are respectively connected between the heat exchange tubes (1) on adjacent horizontal planes.

6. The tube-fin heat exchanger according to claim 1, characterized in that: The connecting tube (6) is of a conical structure.

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