Fractal micro-channel heat exchanger

Abstract

The utility model discloses a fractal micro-channel heat exchanger, and relates to the technical field of heat exchangers. The fractal micro-channel heat exchanger comprises a heat exchanger shell, a top cover and a first screw, a hot fluid channel and a cold fluid channel are arranged in the heat exchanger shell, communicating pipes are arranged on the outer surfaces of the hot fluid channel and the cold fluid channel, and a first box body, a second box body, a third box body and a fourth box body are fixedly connected to the inner wall of the heat exchanger shell; the outer surface of the first box body is fixedly connected with a cold fluid input pipe, the outer surface of the second box body is fixedly connected with a cold fluid output pipe, the outer surface of the third box body is fixedly connected with a hot fluid input pipe, and the outer surface of the fourth box body is fixedly connected with a hot fluid output pipe. The top and the bottom of the hot fluid channel and the top and the bottom of the cold fluid channel are fixedly connected with mounting seats, mounting holes are formed in the mounting seats, the heat exchange area between cold fluid and hot fluid can be greatly increased, and then the heat exchange efficiency is improved.

Description

Technical Field

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

[0002] Fractal microchannel heat exchangers are a special type of microchannel heat exchanger with fractal characteristics. By introducing fractal structures within the microchannels, they increase the complexity of fluid flow, thereby improving heat exchange efficiency. This design allows for higher heat exchange performance within a compact space, making them suitable for applications requiring high-efficiency heat exchange. Due to their high heat transfer efficiency, small size, and light weight, microchannel heat exchangers are widely used in industries such as automotive, aerospace, and energy. Existing heat exchangers, on the other hand, have relatively small heat exchange areas for the hot and cold fluids, resulting in lower heat exchange efficiency. Furthermore, the heat exchange channels are difficult to replace after prolonged use and damage, which is inconvenient. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a fractal microchannel heat exchanger to solve the existing problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fractal microchannel heat exchanger, comprising a heat exchanger shell, a top cover, and a first screw. The heat exchanger shell contains a hot fluid channel and a cold fluid channel. A connecting pipe is provided on the outer surface of the hot fluid channel and the cold fluid channel. A first box, a second box, a third box, and a fourth box are fixedly connected to the inner wall of the heat exchanger shell. A cold fluid inlet pipe is fixedly connected to the outer surface of the first box. A cold fluid outlet pipe is fixedly connected to the outer surface of the second box. A hot fluid inlet pipe is fixedly connected to the outer surface of the third box. A hot fluid outlet pipe is fixedly connected to the outer surface of the fourth box. Mounting seats are fixedly connected to the top and bottom of both the hot fluid channel and the cold fluid channel. A mounting hole is provided inside the mounting seat. A screw is provided inside the mounting hole, and a fastening nut is threaded onto the outer surface of the screw.

[0005] Preferably, the top cover is connected to the heat exchanger housing by a first screw, and the top cover is located on the top of the heat exchanger housing.

[0006] Preferably, a mounting plate is fixedly connected to the side of the outer surface of the connecting pipe, and a second screw is provided inside the mounting plate. The mounting plate is connected to the hot fluid channel and the cold fluid channel through the second screw.

[0007] Preferably, the hot fluid channel and the cold fluid channel are arranged alternately, and the end of the connecting pipe away from the hot fluid channel and the cold fluid channel is fixedly connected to the outer surface of the first box, the second box, the third box and the fourth box.

[0008] Preferably, the interiors of the first and second boxes are connected to the interiors of the cold fluid channel via a connecting pipe, and the interiors of the third and fourth boxes are connected to the interiors of the hot fluid channel via a connecting pipe.

[0009] Preferably, the outer surfaces of the cold fluid inlet pipe, cold fluid outlet pipe, hot fluid inlet pipe, and hot fluid outlet pipe all penetrate the heat exchanger shell and extend to the outside.

[0010] Beneficial effects

[0011] This invention provides a fractal microchannel heat exchanger. It has the following advantages:

[0012] (1) The fractal microchannel heat exchanger, through the cooperation between the first box, the second box, the third box, the fourth box, the connecting pipe, the hot fluid channel and the cold fluid channel, can greatly increase the heat exchange area between the hot and cold fluids by dispersing the hot fluid and cold fluid into multiple smaller fluid bundles and by staggering the hot fluid channel and the cold fluid channel, thereby improving the heat exchange efficiency.

[0013] (2) The fractal microchannel heat exchanger allows the hot fluid channel and the cold fluid channel to be disassembled separately through the cooperation between the screw, the fastening nut, the mounting plate and the second screw. The operation is simple and convenient to remove a damaged hot fluid channel or cold fluid channel for repair or replacement, which improves the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the overall disassembled structure of this utility model;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention;

[0017] Figure 4 This is a partial second-view structural schematic diagram of the present invention.

[0018] In the diagram: 1. Heat exchanger shell; 2. Top cover; 3. First screw; 4. Hot fluid channel; 5. Cold fluid channel; 6. Connecting pipe; 7. Mounting plate; 8. First housing; 9. Second housing; 10. Third housing; 11. Fourth housing; 12. Cold fluid inlet pipe; 13. Cold fluid outlet pipe; 14. Hot fluid inlet pipe; 15. Hot fluid outlet pipe; 16. Mounting base; 17. Mounting hole; 18. Screw; 19. Fastening nut; 20. Second screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] like Figure 1-4 As shown, this utility model provides a fractal microchannel heat exchanger, including a heat exchanger shell 1, a top cover 2, and a first screw 3. The heat exchanger shell 1 is provided with a hot fluid channel 4 and a cold fluid channel 5 inside. The outer surfaces of the hot fluid channel 4 and the cold fluid channel 5 are provided with connecting pipes 6. The inner wall of the heat exchanger shell 1 is fixedly connected to a first box 8, a second box 9, a third box 10, and a fourth box 11. The outer surface of the first box 8 is fixedly connected to a cold fluid inlet pipe 12. The outer surface of the second box 9 is fixedly connected to a cold fluid outlet pipe 13. The outer surface of the third box 10 is fixedly connected to a hot fluid inlet pipe 14. The outer surface of the fourth box 11 is fixedly connected to a hot fluid outlet pipe 15. The top and bottom of the hot fluid channel 4 and the cold fluid channel 5 are both fixedly connected to mounting bases 16. The mounting base 16 is provided with a mounting hole 17 inside. The mounting hole 17 is provided with a screw 18 inside. The outer surface of the screw 18 is threaded with a fastening nut 19.

[0022] Specifically, the top cover 2 is connected to the heat exchanger housing 1 by the first screw 3, and the top cover 2 is located on the top of the heat exchanger housing 1.

[0023] Specifically, a mounting plate 7 is fixedly connected to the side of the outer surface of the connecting pipe 6. A second screw 20 is provided inside the mounting plate 7. The mounting plate 7 is connected to the hot fluid channel 4 and the cold fluid channel 5 through the second screw 20.

[0024] Specifically, the hot fluid channel 4 and the cold fluid channel 5 are arranged alternately, and the end of the connecting pipe 6 away from the hot fluid channel 4 and the cold fluid channel 5 is fixedly connected to the outer surface of the first box 8, the second box 9, the third box 10 and the fourth box 11.

[0025] Specifically, the interiors of the first box 8 and the second box 9 are connected to the interior of the cold fluid channel 5 through the connecting pipe 6, and the interiors of the third box 10 and the fourth box 11 are connected to the interior of the hot fluid channel 4 through the connecting pipe 6.

[0026] Specifically, the outer surfaces of the cold fluid inlet pipe 12, the cold fluid outlet pipe 13, the hot fluid inlet pipe 14, and the hot fluid outlet pipe 15 all penetrate the heat exchanger shell 1 and extend to the outside.

[0027] The working principle and beneficial effects of the above embodiments.

[0028] In use, cold fluid enters the first housing 8 through the cold fluid inlet pipe 12, then flows into the cold fluid channel 5 through the connecting pipe 6. The cold fluid flows along the cold fluid channel 5 and is then discharged through the connecting pipe 6 into the second housing 9, and then discharged through the cold fluid outlet pipe 13. Similarly, hot fluid enters the third housing 10 through the hot fluid inlet pipe 14, then flows into the hot fluid channel 4 through the connecting pipe 6. The hot fluid flows along the hot fluid channel 4 and is then discharged through the connecting pipe 6 into the fourth housing 11, and then discharged through the hot fluid outlet pipe 15. This facilitates the dispersion of cold and hot fluids into multiple... For fluids with smaller bundles, the hot fluid channel 4 and cold fluid channel 5 are staggered and have long paths, which facilitates sufficient heat exchange between the cold and hot fluids. When a hot fluid channel 4 or cold fluid channel 5 is damaged and needs to be replaced, the fastening nut 19 is unscrewed and the screw 18 is removed from the mounting hole 17. Then, the second screw 20 at the corresponding position is removed, so that the mounting plate 7 is separated from the hot fluid channel 4 or cold fluid channel 5. The damaged hot fluid channel 4 or cold fluid channel 5 can then be removed separately for repair or replacement.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fractal microchannel heat exchanger, comprising a heat exchanger housing (1), a top cover (2), and a first screw (3), characterized in that: The heat exchanger housing (1) is provided with a hot fluid channel (4) and a cold fluid channel (5) inside. A connecting pipe (6) is provided on the outer surface of the hot fluid channel (4) and the cold fluid channel (5). A first box (8), a second box (9), a third box (10), and a fourth box (11) are fixedly connected to the inner wall of the heat exchanger housing (1). A cold fluid inlet pipe (12) is fixedly connected to the outer surface of the first box (8), and a cold fluid outlet pipe (12) is fixedly connected to the outer surface of the second box (9). 13) A hot fluid input pipe (14) is fixedly connected to the outer surface of the third box (10), and a hot fluid output pipe (15) is fixedly connected to the outer surface of the fourth box (11). Mounting seats (16) are fixedly connected to the top and bottom of the hot fluid channel (4) and the cold fluid channel (5). A mounting hole (17) is provided inside the mounting seat (16). A screw (18) is provided inside the mounting hole (17). A fastening nut (19) is threadedly connected to the outer surface of the screw (18).

2. The fractal microchannel heat exchanger according to claim 1, characterized in that: The top cover (2) is connected to the heat exchanger housing (1) by a first screw (3), and the top cover (2) is located on the top of the heat exchanger housing (1).

3. The fractal microchannel heat exchanger according to claim 1, characterized in that: A mounting plate (7) is fixedly connected to the side of the outer surface of the connecting pipe (6). A second screw (20) is provided inside the mounting plate (7). The mounting plate (7) is connected to the hot fluid channel (4) and the cold fluid channel (5) through the second screw (20).

4. A fractal microchannel heat exchanger according to claim 1, characterized in that: The hot fluid channel (4) and the cold fluid channel (5) are arranged alternately, and the end of the connecting pipe (6) away from the hot fluid channel (4) and the cold fluid channel (5) is fixedly connected to the outer surface of the first box (8), the second box (9), the third box (10) and the fourth box (11).

5. A fractal microchannel heat exchanger according to claim 1, characterized in that: The interiors of the first box (8) and the second box (9) are connected to the interior of the cold fluid channel (5) through a connecting pipe (6), and the interiors of the third box (10) and the fourth box (11) are connected to the interior of the hot fluid channel (4) through a connecting pipe (6).

6. A fractal microchannel heat exchanger according to claim 1, characterized in that: The outer surfaces of the cold fluid inlet pipe (12), cold fluid outlet pipe (13), hot fluid inlet pipe (14), and hot fluid outlet pipe (15) all penetrate the heat exchanger shell (1) and extend to the outside.

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