Micro-channel heat exchanger device

Abstract

The utility model discloses a micro-channel heat exchanger device which comprises flat pipe structures and a fin structure which are installed on a collecting pipe in a butt joint mode, and the fin structure is installed between the two flat pipe structures. A heat exchange channel is arranged in the middle of the flat tube structure, the side edge position of the flat tube structure is in an opening state, and a strip-shaped inserting groove is formed in the side face, close to the fin structure, of the flat tube structure. And the wave crest position of the fin structure is fixedly connected with a sealing plate. According to the micro-channel heat exchanger device, the design and use of the detachable fin structure and the semi-open type flat pipe structure are adopted, on one hand, the cooling fin structure can be taken down, replaced and cleaned, and on the other hand, the design and use of the sealing plate are matched, and the heat exchange capacity of the fin structure can be greatly improved.

Description

Technical Field

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

[0002] Microchannels, also known as microchannel heat exchangers, are heat exchangers with channel equivalent diameters ranging from 10 to 1000 μm. These heat exchangers contain dozens of tiny flow channels within flat tubes, connected at both ends to circular manifolds. Baffles within the manifolds divide the flow channels into several pathways. Microchannel heat exchangers are a novel and highly efficient heat exchange device, characterized by the use of minute channels for heat transfer.

[0003] Microchannel heat exchangers mainly consist of microchannel flat tubes, heat dissipation fins, and manifolds. Manifolds are located at both ends of the microchannel flat tubes for distributing and collecting refrigerant. Venetian fins with louvers are typically placed between adjacent microchannel flat tubes to improve the heat exchange efficiency between the heat exchanger and the air side.

[0004] Microchannel heat exchangers are used in environments such as air conditioners or refrigerators, which can cause various substances to stick to the fins, leading to increased condenser resistance and reduced heat exchange efficiency. When microchannel heat exchangers are used as evaporators in heat pump dryers, the accumulation of fibers and impurities from clothing on the fin surface can also cause excessive resistance and poor heat exchange.

[0005] Therefore, we propose a microchannel heat exchanger device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a microchannel heat exchanger device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A microchannel heat exchanger device includes a flat tube structure and a finned structure mounted on a manifold, wherein the finned structure is installed between two flat tube structures.

[0009] A heat exchange channel is provided in the middle of the flat tube structure, the side of the flat tube structure is open, and a strip-shaped insertion groove is provided on the side of the flat tube structure near the fin structure.

[0010] A sealing plate is fixedly connected to the crest position of the fin structure.

[0011] Preferably, the crest of the fin structure is inserted into the inner cavity of the strip-shaped insertion groove.

[0012] Preferably, the sealing plate is a deformable metal sheet structure, and when the sealing plate is located in the inner cavity of the flat tube structure, it exerts a pulling force on the fin structure.

[0013] Preferably, a vertical sealing strip is integrally fixedly connected to the side of the sealing plate.

[0014] Preferably, the vertical sealing strip is a metal strip structure, the vertical sealing strip and the flat tube structure are made of the same material, and a rubber strip structure for sealing is provided on both sides of the vertical sealing strip.

[0015] Preferably, both the flat tube structure and the vertical sealing strip have threaded holes on their end faces, and the two are fixed together by bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This microchannel heat exchanger device adopts a detachable fin structure and a semi-open flat tube structure. On the one hand, the heat dissipation fin structure can be removed, replaced, and cleaned. On the other hand, in conjunction with the design and use of the sealing plate, the heat exchange capacity of the fin structure can be greatly improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the structure of this utility model.

[0020] In the diagram: 1. Flat tube structure; 2. Finned structure; 3. Heat exchange channel; 4. Strip-shaped insertion groove; 5. Sealing plate. Detailed Implementation

[0021] 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.

[0022] See Figure 1-2 This utility model provides a technical solution for a microchannel heat exchanger device: Example

[0023] The heat exchanger device mainly includes a flat tube structure 1 for docking and installation in the manifold, and a finned structure 2 is installed between every two flat tube structures 1.

[0024] A heat exchange channel 3 is provided in the middle of the flat tube structure 1, and the side of the flat tube structure 1 is set to an open state. A strip-shaped insertion groove 4 is opened on the side of the flat tube structure 1.

[0025] A sealing plate 5 is fixedly connected at the crest position of the fin structure 2.

[0026] Among them, part of the wave crest structure of the fin structure 2 is snapped into the inner cavity of the reminder insertion slot 4.

[0027] Specifically, the sealing plate 5 is a deformable metal sheet structure, and the sealing plate 5 always exerts a pulling force on the fin structure 2 within the inner cavity of the flat tube structure 1.

[0028] A vertical sealing strip is integrally fixedly connected to the side of the sealing plate 5.

[0029] Specifically, the vertical sealing strip is a metal strip structure. The vertical sealing strip and the flat tube structure 1 are made of the same material, and a rubber strip structure for sealing is provided on both sides of the vertical sealing strip.

[0030] Threaded holes are provided on the end faces of both the flat tube structure 1 and the vertical sealing strip, and the two are fixed by bolt fasteners.

[0031] In this embodiment, during use, the fin structure 2 with vertical sealing strips and sealing plates 5 is first installed between each flat tube structure 1 using bolt fasteners for heat exchange of the entire heat exchanger device.

[0032] After a period of use, compared to the direct welding method of heat dissipation fins in existing technologies, the fin structure 2 of this technical solution can be directly disassembled by removing the bolt fastener structure. Then, the fin structure 2 can be directly removed for cleaning and replacement of damaged fin structure 2. At the same time, when removing the fin structure 2, the fin structure 2 drives the sealing plate 5 to slide tightly against the inner wall of the flat tube structure 1 in the inner cavity. First, the flat tube structure 1 can be opened directly to clean the dirt inside. At the same time, when the sealing plate 5 moves, it can also rub against the inner wall of the flat tube structure 1 to scrape off the dirt.

[0033] In this technical solution, the design and use of detachable fin structure 2 and semi-open flat tube structure 1 can, on the one hand, allow the heat dissipation fin structure to be removed, replaced and cleaned, and on the other hand, in conjunction with the design and use of sealing plate 5, can also greatly improve the heat exchange capacity of fin structure 2.

[0034] 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 microchannel heat exchanger device, comprising a flat tube structure (1) and a finned structure (2) mounted on a manifold, characterized in that: The fin structure (2) is installed between the two flat tube structures (1); The flat tube structure (1) has a heat exchange channel (3) in the middle, the side of the flat tube structure (1) is open, and a strip-shaped insertion groove (4) is opened on the side of the flat tube structure (1) near the fin structure (2). A sealing plate (5) is fixedly connected to the crest position of the fin structure (2).

2. The microchannel heat exchanger device according to claim 1, characterized in that: The crest of the fin structure (2) is inserted into the inner cavity of the strip insertion groove (4).

3. The microchannel heat exchanger device according to claim 1, characterized in that: The sealing plate (5) is specifically a deformable metal sheet structure. When the sealing plate (5) is located in the inner cavity of the flat tube structure (1), it exerts a pulling force on the fin structure (2).

4. The microchannel heat exchanger device according to claim 1, characterized in that: A vertical sealing strip is integrally fixedly connected to the side of the sealing plate (5).

5. A microchannel heat exchanger device according to claim 4 wherein: The vertical sealing strip is specifically a metal strip structure. The vertical sealing strip and the flat tube structure (1) are made of the same material, and a rubber strip structure for sealing is provided on both sides of the vertical sealing strip.

6. A microchannel heat exchanger device according to claim 1, characterized in that: Both the flat tube structure (1) and the vertical sealing strip have threaded holes on their end faces, and the two are fixed by bolt fasteners.

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