Fin type heat exchanger

Abstract

The utility model relates to the technical field of heat pumps, and provides a fin type heat exchanger which can introduce a refrigerant into a heat exchange component in a heat exchange process, such as heat exchange or refrigeration, so that the refrigerant flows around the periphery of a heat exchange cavity. And meanwhile, the fan works to suck air, so that the air penetrates through the heat exchange assembly, enters the heat exchange cavity and is discharged from the opening. When penetrating through the heat exchange assembly, the heat exchanger can exchange heat with a refrigerant in the heat exchange assembly, effective heat exchange is achieved, and the heat exchange efficiency is improved. Due to the fact that the four heat exchange assemblies are independently used on the left side and the right side of the frame after being connected in parallel in pairs, and the two draught fans can independently conduct air draft on the corresponding heat exchange cavities, in the heat exchange process, when a set of heat exchange assemblies connected in parallel is used, a single draught fan can be independently started, double draught fans do not need to be started, and energy consumption can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat pumps, and particularly relates to a fin heat exchanger. Background Art

[0002] A heat pump is an energy-efficient device that makes full use of low-grade heat energy and can drive heat to transfer from a low-temperature object to a high-temperature object. A heat pump generally includes a compressor, a shell-and-tube heat exchanger, a fin heat exchanger, an expansion valve, etc. During the heating process, the compressor sucks in low-temperature and low-pressure gaseous refrigerant, compresses it into high-temperature and high-pressure gaseous refrigerant. The gaseous refrigerant releases heat to water in the shell-and-tube heat exchanger and then liquefies. After throttling through the electronic expansion valve, it becomes low-temperature and low-pressure liquid refrigerant, absorbs the heat of the flowing air in the fin heat exchanger and vaporizes, becomes low-temperature gaseous refrigerant, and is sucked into the compressor again for circulation.

[0003] During the refrigeration process, the compressor sucks in low-temperature and low-pressure gaseous refrigerant, compresses it into high-temperature and high-pressure gaseous refrigerant. The gaseous refrigerant releases heat to the flowing air in the fin heat exchanger and liquefies. After throttling through the electronic expansion valve, it becomes low-temperature and low-pressure liquid refrigerant, absorbs the heat of water in the shell-and-tube heat exchanger and vaporizes, becomes low-temperature gaseous refrigerant, and is sucked into the compressor again for circulation. However, due to the structural design defect of the fin heat exchanger of the dual system in the traditional heat pump, the energy consumption is large when only one system is turned on. Summary of the Utility Model

[0004] Based on the above background, the purpose of the utility model is to provide a fin heat exchanger, which can reduce energy consumption while realizing effective heat exchange.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fin heat exchanger, comprising: a frame; four heat exchange components, which are arranged at intervals on one side of the frame, and two of the heat exchange components are in parallel cooperation with each other, enclosing a heat exchange cavity and having an opening communicating with the heat exchange cavity at one end of the heat exchange component close to the frame. The heat exchange component is used to introduce refrigerant so that the refrigerant surrounds the heat exchange cavity; two blowers are arranged at intervals on the other side of the frame, the blowers cover the corresponding openings, and the blowers are used to separately extract air from the corresponding heat exchange cavity, so that air passes through a group of parallel heat exchange components and enters the heat exchange cavity.

[0007] Further, each of the heat exchange components includes a heat exchange aluminum sheet group and a heat exchange tube. Each of the heat exchange aluminum sheet groups is installed on the frame, and two adjacent heat exchange aluminum sheet groups are connected in parallel to surround and form the heat exchange cavity. One end of the heat exchange aluminum sheet group close to the frame has the opening. The heat exchange tube penetrates into the heat exchange aluminum sheet group, and both ends of the heat exchange tube extend out of the end of the heat exchange aluminum sheet group far from the frame. The heat exchange aluminum sheet group is used to allow air to pass through and flow into the heat exchange cavity.

[0008] Further, it further includes a connecting plate. Between a group of heat exchange aluminum sheet groups connected in parallel are connected by the connecting plate and enclose to form the heat exchange cavity.

[0009] Further, the distance between two heat exchange aluminum sheet groups connected in parallel gradually increases from the end of the heat exchange aluminum sheet group far from the frame to the end of the heat exchange aluminum sheet group close to the frame.

[0010] Further, the frame includes a frame border and two mounting plates. The two mounting plates are spaced on the frame border, and the two blowers respectively penetrate and are installed on the mounting plates. Each heat exchange component is installed on the side of the mounting plate facing away from the blower.

[0011] Further, the frame border includes two parallel and spaced cross beams and three longitudinal beams spaced and connected between the two cross beams. Between each longitudinal beam and each cross beam encloses to form two compartments, and each mounting plate is respectively arranged on the inner wall of the compartment.

[0012] Further, the finned heat exchanger further includes two sealing bottom plates, and each sealing bottom plate is respectively arranged on the side of the heat exchange component far from the opening.

[0013] The utility model has the following beneficial effects:

[0014] (1) During the heat exchange process, such as heat exchange or refrigeration, the refrigerant can be introduced into the heat exchange component, so that the refrigerant flows around the outer periphery of the heat exchange cavity. At the same time, the blower works to suck air, so that the air passes through the heat exchange component and enters the heat exchange cavity, and is discharged from the opening. When passing through the heat exchange component, heat exchange can be carried out with the refrigerant in the heat exchange component, realizing effective heat exchange and improving the heat exchange efficiency. Since the two heat exchange components are spaced and connected in parallel on the frame, and the two blowers can separately draw air for their respective corresponding heat exchange cavities, therefore, during the heat exchange process, when using a group of heat exchange components connected in parallel, a single blower can be started separately, and there is no need to turn on both blowers, which is beneficial to reducing energy consumption.

[0015] (2) Design the heat exchange component as a heat exchange aluminum sheet group and a heat exchange tube, and pass the heat exchange tube through the heat exchange aluminum sheet group. After the refrigerant is introduced into the heat exchange tube, it can fully contact the air passing through the heat exchange aluminum sheet group through the heat exchange aluminum sheet group, realizing effective heat exchange, improving the heat exchange efficiency, and saving energy consumption.

[0016] (3) The distance between two heat exchange aluminum sheet groups in parallel cooperation increases from the end far from the frame to the end close to the frame, indicating that the cross-sectional area of the heat exchange cavity is larger closer to the fan, enabling the air discharged from the opening to diffuse in all directions, thus making the air evenly dispersed; at the same time, it is also beneficial to slow down the flow rate of the discharged air, extend the flow time in the heat exchange cavity, and facilitate improving the heat exchange efficiency.

[0017] (4) Design the frame as a frame and two mounting plates, enabling the fan to be installed on the mounting plates, which not only helps improve the installation stability of the fan but also facilitates the installation of the fan and improves the assembly efficiency of the fin heat exchanger. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a perspective view of the structure of the fin heat exchanger in one embodiment;

[0020] Figure 2 It is a cross-sectional view of the structure of the fin heat exchanger in one embodiment;

[0021] Figure 3 It is another perspective view of the structure of the fin heat exchanger in one embodiment;

[0022] Figure 4 It is yet another perspective view of the structure of the fin heat exchanger in one embodiment.

[0023] Explanation of the Reference Numerals in the Drawings:

[0024] 10. Frame; 11. Frame border; 111. Cross beam; 112. Longitudinal beam; 113. Compartment; 12. Mounting plate; 20. Heat exchange component; 21. Heat exchange aluminum sheet group; 22. Heat exchange cavity; 23. Opening; 24. Heat exchange tube; 25. Sealing bottom plate; 26. Connecting plate; 30. Fan.

[0025] The realization of the purpose, functional features, and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, the descriptions such as "first" and "second" in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0029] In one embodiment, please refer to Figures 1 to 4 , this application provides a fin heat exchanger, including: a frame 10; four heat exchange components 20, which are arranged at intervals on one side of the frame 10, and the two heat exchange components 20 are connected in parallel with each other and enclose a heat exchange cavity 22 and have an opening 23 communicating with the heat exchange cavity 22 at one end of the heat exchange component 20 close to the frame 10. The heat exchange component 20 is used to introduce a refrigerant so that the refrigerant surrounds the heat exchange cavity 22; two fans 30 are arranged at intervals on the other side of the frame 10, and the fan 30 covers the corresponding opening 23. The fan 30 is used to separately extract air from the corresponding heat exchange cavity 22 so that air passes through the heat exchange component 20 and enters the heat exchange cavity 22.

[0030] In the above fin heat exchanger, during the heat exchange process, such as heat exchange or refrigeration, the refrigerant can be introduced into the heat exchange component 20, so that the refrigerant flows around the outer periphery of the heat exchange chamber 22. At the same time, the fan 30 operates to suck air, so that the air passes through the heat exchange component 20 and enters the heat exchange chamber 22, and is discharged from the opening 23. When passing through the heat exchange component 20, heat exchange can be carried out with the refrigerant in the heat exchange component 20, realizing effective heat exchange and improving the heat exchange efficiency. Since the four heat exchange components 20 are connected in parallel in pairs and are used independently on the left and right of the frame 10, and the two fans 30 can individually extract air from their respective corresponding heat exchange chambers 22, therefore, during the heat exchange process, when using a group of parallel heat exchange components 20, a single fan 30 can be started individually without starting the double fans 30, which is beneficial to reducing energy consumption.

[0031] It should be explained that the heat exchange component 20 has a channel for the refrigerant to flow, and this channel surrounds the outer periphery of the heat exchange chamber 22. In this way, when the refrigerant is introduced into the heat exchange component 20, it will fully exchange heat with the air penetrating into the heat exchange chamber 22. There are various materials for the heat exchange component 20, such as aluminum fins, copper fins, etc.

[0032] In addition, the fin heat exchanger of this embodiment is applied to an air source heat pump.

[0033] Furthermore, please refer to Figure 2 , each heat exchange component 20 includes a heat exchange aluminum sheet group 21 and a heat exchange tube 24. Each heat exchange aluminum sheet group 21 is installed on the frame 10, and two heat exchange aluminum sheet groups 21 are connected in parallel to surround and form a heat exchange chamber 22. One end of the heat exchange aluminum sheet group 21 close to the frame 10 has an opening 23. The heat exchange tube 24 penetrates into the heat exchange aluminum sheet group 21, and both ends of the heat exchange tube 24 extend out of the end of the heat exchange aluminum sheet group 21 far from the frame 10. The heat exchange aluminum sheet group 21 is used to allow air to pass through and flow into the heat exchange chamber 22. It can be seen that the heat exchange component 20 is designed as a heat exchange aluminum sheet group 21 and a heat exchange tube 24, and the heat exchange tube 24 penetrates into the heat exchange aluminum sheet group 21. In this way, after the refrigerant is introduced into the heat exchange tube 24, it can fully contact with the heat exchange aluminum sheet group 21 and the air passing through the heat exchange aluminum sheet group 21, realizing effective heat exchange, improving the heat exchange efficiency and saving energy consumption.

[0034] It should be explained that the heat exchange aluminum sheet group 21 refers to a structure formed by combining multiple aluminum sheets, such as a grid structure formed by arranging multiple aluminum sheets at intervals side by side. Among them, the fan 30 can suck air from the gaps between the aluminum sheets into the heat exchange chamber 22. Specifically, the heat exchange aluminum sheet group 21 is a hydrophilic aluminum foil sheet group.

[0035] Furthermore, it also includes a connecting plate 26. The parallel-connected heat exchange aluminum sheet groups 21 are connected by the connecting plate 26 and enclose to form a heat exchange chamber 22. In this way, it is convenient for the parallel-connected heat exchange aluminum sheet groups 21 to be connected.

[0036] In one embodiment, please refer to Figure 3 , the distance between two parallel cooperating groups of heat exchange aluminum sheets 21 gradually increases from the end of the group of heat exchange aluminum sheets 21 away from the frame 10 to the end of the group of heat exchange aluminum sheets 21 close to the frame 10. It can be seen that the distance between two parallel cooperating groups of heat exchange aluminum sheets 21 increases from the end away from the frame 10 to the end close to the frame 10, which indicates that the cross-sectional area of the heat exchange chamber 22 is larger closer to the fan 30, enabling the air discharged from the opening 23 to diffuse in all directions, thus making the air evenly dispersed; at the same time, it is also beneficial to slow down the flow rate of the discharged air, extend the flow time in the heat exchange chamber 22, and facilitate improving the heat exchange efficiency.

[0037] In one embodiment, please refer to Figure 4 , the frame 10 includes a frame border 11 and two mounting plates 12. The two mounting plates 12 are spaced apart on the frame border 11, and the two fans 30 are respectively and correspondingly installed through the mounting plates 12, and each heat exchange component 20 is installed on the side of the mounting plate 12 facing away from the fan 30. It can be seen that the frame 10 is designed as the frame border 11 and two mounting plates 12, enabling the fan 30 to be installed on the mounting plate 12, which is not only beneficial to improving the installation stability of the fan 30, but also convenient for the installation of the fan 30, and improving the assembly efficiency of the fin heat exchanger.

[0038] It should be explained that for the installation of the fan 30 on the mounting plate 12, a circular hole matching the size of the fan 30 can be pre-cut on the mounting plate 12, and then the air suction end of the fan 30 is embedded in the circular hole; then, the fan 30 is fastened to the mounting plate 12 through components such as bolts or pins.

[0039] Furthermore, please refer to Figure 4 , the frame border 11 includes two parallel and spaced cross beams 111 and three longitudinal beams 112 spaced and connected between the two cross beams 111. Each longitudinal beam 112 and each cross beam 111 enclose two compartments 113, and each mounting plate 12 is respectively arranged on the inner wall of the compartment 113. In this way, it is convenient for the two fans 30 to be independently installed, so as to separately control the air suction of the heat exchange component 20.

[0040] In one embodiment, please refer to Figure 2 , the fin heat exchanger further includes two sealing bottom plates 25, and each sealing bottom plate 25 is respectively arranged on the side of the heat exchange component 20 away from the opening 23.

[0041] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions, or substitutions made by those skilled in the art within the substantial scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A fin heat exchanger, characterized in that: include: Frame (10); Four heat exchange components (20) are arranged at intervals on one side of the frame (10), and the heat exchange components (20) are connected in parallel with each other in pairs to enclose a heat exchange cavity (22), and an opening (23) connected to the heat exchange cavity (22) is provided at one end of the heat exchange component (20) close to the frame (10), and the heat exchange component (20) is used to pass a refrigerant so that the refrigerant surrounds the heat exchange cavity (22); Two fans (30) are arranged at a distance from each other on the other side of the frame (10), and the fans (30) cover the corresponding openings (23). The fans (30) are used to exhaust air from the corresponding heat exchange chamber (22) separately, so that air passes through a group of parallel heat exchange components (20) and enters the heat exchange chamber (22).

2. The fin heat exchanger according to claim 1, characterized in that: Each of the heat exchange components (20) comprises a heat exchange aluminum fin group (21) and a heat exchange tube (24); each of the heat exchange aluminum fin groups (21) is mounted on the frame (10), and the heat exchange aluminum fin groups (21) are connected in parallel to form a heat exchange cavity (22); the end of the heat exchange aluminum fin group (21) close to the frame (10) has the opening (23); the heat exchange tube (24) penetrates into the heat exchange aluminum fin group (21), and both ends of the heat exchange tube (24) pass out of the end of the heat exchange aluminum fin group (21) away from the frame (10); the heat exchange aluminum fin group (21) is used to allow air to pass through and flow into the heat exchange cavity (22).

3. The fin heat exchanger according to claim 2, characterized in that: It also includes a connecting plate (26), through which a group of parallel heat exchange aluminum plate groups (21) are connected to enclose the heat exchange cavity (22).

4. The fin heat exchanger according to claim 2, characterized in that: The distance between the two heat exchange aluminum fin groups (21) connected in parallel gradually increases from one end of the heat exchange aluminum fin group (21) away from the frame (10) to one end of the heat exchange aluminum fin group (21) close to the frame (10).

5. A fin heat exchanger according to any one of claims 1 to 4, characterized in that: The frame (10) comprises a frame (11) and two mounting plates (12), the two mounting plates (12) being spaced apart on the frame (11), and the two fans (30) being respectively and correspondingly installed through the mounting plates (12), and each heat exchange component (20) being installed on a side of the mounting plate (12) facing away from the fan (30).

6. The fin heat exchanger according to claim 5, characterized in that: The frame (11) comprises two parallel and spaced cross beams (111), and three longitudinal beams (112) spaced and connected between the two cross beams (111); two compartments (113) are formed between each of the longitudinal beams (112) and each of the cross beams (111); and each of the mounting plates (12) is respectively arranged on the inner wall of the compartment (113).

7. A fin heat exchanger according to any one of claims 1 to 4, characterized in that: The fin heat exchanger further comprises two bottom sealing plates (25), each of the bottom sealing plates (25) being arranged on a side of the heat exchange component (20) away from the opening (23).

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