Heat exchanger fin, heat exchange fin assembly and heat exchanger

Abstract

The invention relates to a heat exchanger fin, a heat exchange fin assembly and a heat exchanger. The heat exchanger fin comprises a fin body, wherein the fin body is provided with a first surface; a plurality of mounting pipes are arranged on the fin body at intervals, and the plurality of mounting pipes are arranged in parallel at intervals; the mounting pipe is used for mounting the heat exchange pipe; the two baffling assemblies are located between the two adjacent mounting pipes and are arranged close to the two mounting pipes respectively; the two baffling assemblies are arranged at an interval so as to form a first air flow channel; the baffle assembly comprises a baffle plate and a flanging hole, and the flanging hole penetrates through the fin body; the baffle plate is arranged on the first surface in a protruding mode and located between the flanging hole and the installation pipe, and a second air flow channel is formed between the baffle plate and the installation pipe and is in a contracted shape in the air flow flowing direction. According to the heat exchanger, through cooperative use of the baffling assemblies and the airflow runners, airflow can exchange heat with the heat exchange pipes on different paths, the contact area of the airflow and the heat exchange pipes is remarkably increased, and therefore the overall heat exchange efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of heat exchangers, and in particular to a heat exchanger fin, a heat exchange fin assembly and a heat exchanger. Background Art

[0002] In the heat exchange process of traditional tube-fin heat exchangers, after the high-temperature airflow enters the fins, the airflow flowing against the heat exchange tube quickly exchanges heat with the tube wall. This part of the airflow has high heat exchange efficiency and the temperature drops quickly. The high-temperature airflow flowing in the gap between the heat exchange tubes mainly relies on heat transfer with the fins to transfer heat to the heat exchange tubes, so the heat exchange efficiency is low and the flue gas outlet temperature is high. In addition, in the leeward area of ​​the heat exchange tube, due to the flow separation of the airflow, large-scale vortices and pressure drops will be formed here, further affecting heat transfer and increasing airflow resistance.

[0003] The existing technology mainly blocks the airflow in the gap between the heat exchange tubes by setting flanged holes on the fins, and sets a flanged baffle at the tail of the fin to force it to flow to the wall of the heat exchange tube to enhance the heat exchange capacity of the heat exchange tube. However, due to the reduction of the flue gas flow area and the increase of the local flow velocity, it will bring greater flow resistance.

[0004] In order to enhance the heat exchange capacity of the leeward area of ​​the heat transfer tube, guide ribs are provided to guide the flue gas to the leeward area of ​​the heat transfer tube, thereby further increasing the effective heat exchange area between the flue gas and the fins and enhancing the heat exchange capacity.

[0005] The above methods all guide the high-temperature flue gas to the vicinity of the heat exchange tubes through flanges or guide ribs, while the airflow in the gap far away from the heat exchange tubes is blocked, and the heat exchange capacity is limited. The heat transferred by the airflow at this position is far from reaching the limit of the thermal conductivity of the fins themselves, which increases the fluid resistance and also leads to the waste of heat exchange materials at this position. Summary of the invention

[0006] The present application provides a heat exchanger fin, a heat exchange fin assembly and a heat exchanger, which guide the airflow to achieve low-resistance flow in multiple heat exchange fin cavities, fully utilize the high thermal conductivity of the fin body to transfer heat, and the fin body has a larger effective utilization area, lower resistance, more uniform heat flux density, greater heat transfer power, and stronger heat exchange capacity.

[0007] A heat exchanger fin, comprising:

[0008] The fin body has a first surface; a plurality of mounting tubes are arranged at intervals on the fin body, and the plurality of mounting tubes are arranged in parallel and at intervals; the mounting tubes are used to install heat exchange tubes;

[0009] Two deflector assemblies are located between two adjacent mounting tubes and are respectively arranged close to the two mounting tubes; the two deflector assemblies are arranged at intervals to form a first airflow channel; the deflector assembly includes a deflector plate and a deflector hole, and the deflector hole passes through the fin body; the deflector plate is protruding from the first surface and is located between the deflector hole and the mounting tube, and a second airflow channel is formed between the deflector plate and the mounting tube, and the second airflow channel is contracted along the airflow direction.

[0010] As a preferred solution of the present application, the deflector is arranged in an arc shape at one end away from the mounting tube, and is arranged at an angle with respect to the mounting tube at one end close to the mounting tube along the airflow direction.

[0011] As a preferred solution of the present application, it also includes a first guide flange, which is arranged on the first surface; the first guide flange is located on the side of the deflection hole away from the deflection plate, and is spaced apart from the deflection hole; the first guide flange is arranged corresponding to the first airflow channel to divert the airflow flowing out of the first airflow channel.

[0012] As a preferred solution of the present application, the first guide flange is arranged in an arc shape and protrudes in the direction of the first airflow channel.

[0013] As a preferred solution of the present application, it also includes a second guide flange, which is arranged on the first surface; the second guide flange is located between two adjacent first guide flanges; the second guide flange is arranged corresponding to the second airflow channel to divert the airflow flowing out of the second airflow channel.

[0014] As a preferred solution of the present application, the second flow guide flange is arranged in an arc shape and is arranged facing the direction of the mounting pipe;

[0015] Alternatively, the second guide flange is arranged at an angle and protrudes in the direction of the mounting tube.

[0016] As a preferred solution of the present application, it also includes a diverter flange and a diverter hole; the diverter hole passes through the fin body; the diverter flange is protruding from the first surface and is located on the side of the baffle away from the baffle hole; the side of the diverter flange away from the baffle is convex.

[0017] As a preferred solution of the present application, the side of the diverter flange facing away from the baffle has two diverter portions arranged at an angle, and the two diverter portions extend toward the mounting tube respectively.

[0018] As a preferred solution of the present application, the flange height of the diversion flange is lower than the flange height of the baffle.

[0019] A heat exchange fin assembly comprises at least two of the above-mentioned heat exchanger fins, wherein a plurality of the heat exchanger fins are stacked.

[0020] A heat exchanger includes a heat exchange tube, characterized in that the heat exchanger also includes the above-mentioned heat exchange fin assembly, and the heat exchange tube is arranged on the mounting tube of the heat exchanger fin of the heat exchange fin assembly.

[0021] Beneficial effects of this application:

[0022] The heat exchanger fin includes a fin body and two baffle components; the fin body has a first surface; a plurality of mounting tubes are arranged at intervals on the fin body, and the plurality of mounting tubes are arranged in parallel and at intervals; the mounting tubes are used to install the heat exchange tubes; the two baffle components are located between two adjacent mounting tubes and are respectively arranged close to the two mounting tubes; the two baffle components are arranged at intervals to form a first airflow channel; the baffle component includes a baffle plate and a flange hole, and the flange hole passes through the fin body; the baffle plate is convexly arranged on the first surface and is located between the flange hole and the mounting tube, and a second airflow channel is formed between the baffle plate and the mounting tube, and the second airflow channel is contracted along the airflow direction.

[0023] The present application uses a deflection assembly in conjunction with a first air flow channel and a second air flow channel to enable the air flow to exchange heat with the heat exchange tube on different paths, thereby increasing the contact area between the air flow and the heat exchange tube, so that the gap area that originally had low heat exchange efficiency can also effectively participate in the heat exchange process, thereby improving the overall heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 It is a schematic diagram of the structure of the heat exchanger fin in this application;

[0027] Figure 2 It is a schematic diagram of the structure of the heat exchanger in this application;

[0028] Figure 3 It is a right side cross-sectional view of the heat exchanger along the first flow guide flange in the present application, that is, a directional view of the flue gas flow;

[0029] Figure 4 It is a right side cross-sectional view of the heat exchanger along the second flow guide flange in the present application, that is, a directional view of the flue gas flow;

[0030] Figure 5 This is a heat exchange effect diagram of the heat exchanger fins in this application.

[0031] Description of reference numerals:

[0032] 1. Fin body; 2. Mounting tube; 3. Diverter flange; 31. Diverter portion; 32. Diverter hole; 4. Baffle assembly; 41. Baffle hole; 42. Baffle plate; 5. First guide flange; 6. Second guide flange; 7. Second airflow channel; 8. First airflow channel. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] like Figures 1 to 5 As shown, a heat exchanger fin comprises a fin body 1 and two deflector assemblies 4; the fin body 1 has a first surface; a plurality of mounting tubes 2 are arranged at intervals on the fin body 1, and the plurality of mounting tubes 2 are arranged in parallel and at intervals; the mounting tubes 2 are used to install heat exchange tubes; two deflector assemblies 4 are located between two adjacent mounting tubes 2 and are respectively arranged close to the two mounting tubes 2; the two deflector assemblies 4 are arranged at intervals to form a first airflow channel 8; the deflector assembly 4 comprises a deflector plate 42 and a deflector hole 41, and the deflector hole 41 passes through the fin body; the deflector plate 42 is protruding from the first surface and is located between the deflector hole 41 and the mounting tube 2, and a second airflow channel 7 is formed between the deflector plate 42 and the mounting tube 2, and the second airflow channel 7 is contracted along the airflow direction.

[0035] It is further explained that, Figure 1 and Figure 2As shown, the mounting tube 2 is used to mount the heat exchange tube to ensure the stability of the structure. The two baffle assemblies 4 are located between two adjacent mounting tubes 2 and close to the mounting tubes 2, which enables the airflow to be more evenly distributed around the heat exchange tube, thereby reducing the flow separation phenomenon in the leeward area, reducing the pressure drop and the formation of large-scale vortices, and thus improving the overall heat exchange efficiency and the stability of the system; the two baffle assemblies 4 are spaced and symmetrically arranged, and the middle part thereof forms a specific airflow channel, namely the first airflow channel 8; the first airflow channel 8 can strengthen the structural strength of the fin body 1, and at the same time can transfer the heat in the airflow to the fin body 1, thereby improving the overall heat exchange efficiency; in addition, each baffle assembly 4 includes at least one baffle plate 42 and at least one baffle hole 41, and these baffle holes 41 pass through the fin body 1; each baffle plate 42 is protruding from the first surface and is located between the corresponding baffle hole 41 and the mounting tube 2, so that a second airflow channel 7 is formed between each baffle plate 42 and the corresponding mounting tube 2, and the second airflow channel 7 presents a contracted shape along the airflow direction. A circular hole is provided at the outlet of the second air flow channel 7, and the circular hole is located between the mounting tube 2 and the second flow guide flange 6. When the airflow flows out from the second air flow channel 7, in addition to part of the airflow flowing to the second flow guide flange 6, part of the airflow will flow to the circular hole, which can effectively guide the airflow into the high-efficiency heat exchange area adjacent to the heat transfer tube, thereby improving the overall heat exchange efficiency.

[0036] That is to say, by using the baffle assembly 4 in conjunction with the first airflow channel 8 and the second airflow channel 7, the airflow is guided to flow between the multiple heat exchange fin cavities, so that the airflow can exchange heat with the heat exchange tubes on different paths, while achieving low-impedance flow characteristics. In this way, the contact area between the airflow and the heat exchange tube is significantly increased, and even the gap area with originally low heat exchange efficiency can be effectively incorporated into the heat exchange process, significantly improving the overall heat exchange efficiency.

[0037] It should be noted that since there is a recirculation area behind the baffle 42, the airflow here is relatively small, so the efficiency of convective heat transfer is relatively weak. In order to further save materials and optimize the structure, it is chosen to directly hollow out these areas, that is, to form baffle holes 41, thereby achieving material savings. Because unnecessary material use is reduced, the overall heat capacity is reduced, so that the equipment requires less energy consumption to achieve the same heat exchange effect. In addition, by distributing the baffle holes 41, the path of the airflow can be further optimized, so that the airflow can produce a vortex effect when passing through these holes, enhancing the local convective heat transfer effect, thereby improving the overall heat exchange efficiency without increasing additional material costs.

[0038] Preferably, if Figure 1 and Figure 2As shown, the end of the baffle 42 away from the mounting tube 2 is arranged in an arc shape, which helps to guide the airflow to pass smoothly, reduce local turbulence, and thus reduce airflow resistance; and the end close to the mounting tube 2 is arranged along the airflow flow direction and is inclined with the mounting tube 2, so that the airflow is more evenly distributed around the heat exchange tube, further optimizing the flow characteristics of the airflow. This also reduces the unevenness of the airflow when entering the heat exchange area, ensuring that the airflow can pass through the space between the baffle 42 and the mounting tube 2 more evenly and efficiently, thereby improving the overall aerodynamic performance. Also, because the airflow is more evenly distributed, more airflow can effectively participate in the heat exchange process, reducing the formation of heat exchange dead zones.

[0039] When a plurality of heat exchanger fins of this embodiment are stacked to form a heat exchange fin assembly, Figure 3 As shown, the fin body also has a second surface that is opposite to the first surface; the baffle 42 of the lower layer of the heat exchanger fin abuts against the second surface of the upper layer, ensuring that heat can be transferred more quickly and evenly in the fin body 1, thereby effectively improving the heat exchange efficiency.

[0040] Preferably, if Figure 1 and Figure 2 As shown, it also includes a first guide flange 5, which is arranged on the first surface; the first guide flange 5 is located on the side of the deflection hole 41 away from the deflector 42, and is arranged at an interval with the deflection hole 41; the first guide flange 5 is arranged corresponding to the first airflow channel 8, and its purpose is to enable the airflow flowing out of the first airflow channel 8 to be effectively diverted. Specifically, when the airflow passes through the first airflow channel 8 and hits the first guide flange 5, the airflow will exchange heat with the fin body 1 of the radiator; the airflow after heat exchange will then impact the first guide flange 5 located at the tail, and will be further diverted, and finally flow out from the tail of the heat transfer tube, thereby completing the entire heat dissipation process. Among them, the first guide flange 5 increases the contact time and area between the airflow and the fin body 1, further improves the heat exchange efficiency, improves the working efficiency of the entire heat exchanger, and reduces the flue gas outlet temperature.

[0041] Preferably, if Figure 1 and Figure 2 As shown, the first guide flange 5 is arranged in an arc shape and protrudes in the direction of the first airflow channel 8; the arc-shaped first guide flange 5 helps the airflow to flow more smoothly along the arc surface after passing through the first airflow channel 8, thereby improving the efficiency of heat exchange, and enables the airflow to be more evenly diverted when impacting the first guide flange 5 at the tail, further optimizing the heat dissipation effect.

[0042] When a plurality of heat exchanger fins of this embodiment are stacked to form a heat exchange fin assembly, Figure 3As shown, the fin body also has a second surface which is opposite to the first surface; the first guide flange 5 of the lower layer of the heat exchanger fin abuts against the second surface of the upper layer to ensure that the airflow is diverted from both sides, thereby effectively improving the heat exchange efficiency.

[0043] Preferably, if Figure 1 and Figure 2 As shown, in addition to the first guide flange 5, a second guide flange 6 is also included, and the second guide flange 6 is arranged on the first surface; the second guide flange 6 is located between two adjacent first guide flanges 5; the second guide flange 6 is arranged corresponding to the second airflow channel 7, and its purpose is to effectively divert the airflow flowing out of the second airflow channel 7. Specifically, when the airflow passes through the second airflow channel 7 and hits the second guide flange 6, the airflow will exchange heat with the fin body 1; the airflow after heat exchange will then hit the second guide flange 6 located at the tail, and will be further diverted, and will pass over the second guide flange 6 to reach the first guide flange 5, and finally complete the entire heat dissipation process. In this process, the second guide flange 6 plays a vital role. It not only increases the contact time and area between the airflow and the fin body 1, but also further improves the heat exchange efficiency, thereby improving the working efficiency of the entire heat exchanger and effectively reducing the flue gas outlet temperature.

[0044] Preferably, if Figure 1 and Figure 2 As shown, the second flow guide flange 6 is arranged in an arc shape and is arranged in the direction of the mounting tube 2; or the second flow guide flange 6 is arranged at an angle and is convex in the direction of the mounting tube 2. It is further explained that the second flow guide flange 6 arranged in an arc shape or at an angle helps the airflow to flow more smoothly along the arc surface after passing through the second airflow channel 7, thereby improving the efficiency of heat exchange, and enables the airflow to be more evenly diverted when impacting the second flow guide flange 6 at the rear, further optimizing the heat dissipation effect.

[0045] When a plurality of heat exchanger fins of this embodiment are stacked to form a heat exchange fin assembly, Figure 4As shown, the fin body also has a second surface that is opposite to the first surface; the second guide flange 6 of the lower layer of the heat exchanger fin has a gap with the second surface of the upper layer, which also shows that the flange height of the second guide flange 6 is lower than the flange height of the first guide flange 5; when the airflow passes through the second airflow channel 7 and hits the second guide flange 6, the airflow will exchange heat with the fin body 1; the airflow after heat exchange will then impact the second guide flange 6 at the tail, and will be further diverted, and a small part of the airflow will pass over the second guide flange 6 to reach the first guide flange 5. Since the first guide flange 5 of the lower layer of the heat exchanger fin is in contact with the second surface of the upper layer, it is ensured that heat can be transferred more quickly and evenly in the fin body 1, thereby effectively improving the heat exchange efficiency.

[0046] Preferably, if Figure 1 and Figure 2 As shown, it also includes a diverter flange 3 and a diverter hole 32; the diverter hole 32 passes through the fin body 1; the diverter flange 3 is protruded from the first surface and is located on the side of the baffle 42 away from the baffle hole 41; the side of the diverter flange 3 away from the baffle 42 is convex. Specifically, the diverter hole 32 passes through the fin body, which can effectively increase the heat dissipation area and improve the heat dissipation efficiency. The diverter flange 3 is protruded from the first surface of the fin body 1, and it is located on the side of the baffle 42 away from the baffle hole 41. The diverter flange 3 is set at a certain height to distribute the flow of the airflow passing through the gap, so that the heat carried by the passing airflow does not exceed the limit of the heat transfer of the diverter flange 3 itself, to prevent the local temperature of the baffle from being too high and making it difficult to carry out an effective heat exchange process. In addition, the side of the diverter flange 3 facing away from the deflector 42 is convex, so that the airflow produces a certain vortex effect when passing through the diverter flange 3, increasing the contact area between the airflow and the surface of the fin body 1, improving the mixing of the airflow and the heat transfer, thereby further improving the heat dissipation effect.

[0047] Preferably, if Figure 1 and Figure 2 As shown, the side of the diverter flange 3 away from the baffle 42 has two diverter portions 31 arranged at an angle, and the two diverter portions 31 extend toward the mounting tube 2 respectively, which can effectively guide the direction of the airflow, so that the airflow flows more smoothly to the mounting tube 2, thereby significantly reducing the resistance of the airflow and the loss of energy. Furthermore, the two diverter portions are arranged around the diverter hole 32, and the airflow will generate more small vortices when passing through the diverter hole 32, further optimizing the distribution and flow path of the airflow, thereby enhancing the impact of the airflow on the fin surface, and further improving the heat transfer efficiency.

[0048] Preferably, if Figure 1 and Figure 2As shown, the flange height of the diverter flange 3 is lower than the flange height of the baffle 42. Specifically, the flange portion of the diverter flange 3 is mainly responsible for distributing the incoming flue gas flow, and its main function is to guide most of the airflow to a position close to the heat transfer tube. In order to achieve this goal, the flange height of the diverter flange 3 is set to be lower than the fin spacing between the fin bodies 1, allowing only a small part of the airflow to pass over the diverter flange 3 and enter the downstream channel. At the same time, turbulence can also be formed, thereby enhancing the efficiency of convective heat exchange. On the other hand, the flange height of the baffle 42 is set to be equal to the fin spacing of the fin body. Here, a tapered flow channel is formed between the baffle 42 and the heat transfer tube, that is, the above-mentioned second airflow channel 7. When the airflow passes through this flow channel, it will impact the flange of the baffle 42, thereby further enhancing the heat exchange effect. In addition, it can also effectively guide the airflow so that it flows more concentratedly to the heat transfer tube to improve the overall heat exchange efficiency.

[0049] like Figure 5 The heat exchange effect diagram of the heat exchanger fin of the present application in use is shown. Figure 5 It can be observed that the temperature of the smoke at the inlet is relatively low. As the smoke flows, its temperature decreases and then gradually increases. The temperature of the smoke at the outlet is evenly distributed. During the flow of the smoke, the heat exchange rate of the smoke gradually increases and is evenly distributed in the process of passing through the diversion flange 3 and the diversion hole 32; when the smoke completely passes through the diversion flange 3 and the diversion hole 32 and enters the baffle 42 and the baffle hole 41, the heat exchange rate of the smoke decreases rapidly; when the smoke gradually flows out of the diversion flange 3 and the diversion hole 32 and enters the guide flange 4, the heat exchange rate of the smoke gradually increases and is evenly distributed.

[0050] Specifically, when the flue gas enters the diversion flange 3 for diversion, most of the flue gas is guided to the high-efficiency heat exchange area near the heat transfer tube, and part of the flue gas passes through the first air flow channel 8 and hits the first guide flange 5, and performs heat exchange with the fin body 1; the airflow after heat exchange will then hit the first guide flange 5 located at the tail, and will be further diverted; finally, the airflow after heat transfer will flow out from the tail of the heat transfer tube; another part of the flue gas passes through the second air flow channel 7 and hits the second guide flange 6, and performs heat exchange with the fin body 1; the airflow after heat exchange will then hit the second guide flange 6 located at the tail, and will be further diverted, and a small part of the airflow will pass over the second guide flange 6 to reach the first guide flange 5, thereby completing the entire heat dissipation process. The remaining small part of the airflow can smoothly pass over the diversion flange 3 and enter the downstream channel to form turbulence; in this area, the airflow will hit the flange and effectively guide the airflow to flow in the direction of the heat transfer tube, thereby further enhancing the heat exchange effect.

[0051] The present application also provides a heat exchange fin assembly, such as Figure 2 and Figure 3As shown, the heat exchange fin assembly includes at least two of the above-mentioned heat exchanger fins, and a plurality of the heat exchanger fins are stacked. Specifically, from the flow direction, the two adjacent heat exchanger fins stacked up and down, the diverter flange 3 located at the bottom and the fin body 1 and the baffle 42 located at the top are respectively provided with a certain interval, and will not overlap each other. In other words, the fin body 1, the diverter flange 3 and the baffle 42 belong to different parallel planes, preferably distributed at equal intervals, and the smoke flow area is divided into three layers. The smoke passes through multiple layers in turn, and its boundary layer is continuously generated and destroyed, so as to effectively cut the central layer of the airflow and break the boundary layer, thereby achieving the purpose of improving the heat exchange efficiency. The specific structure of the heat exchanger fin refers to the above-mentioned embodiment. Since a heat exchange fin assembly adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0052] The present application also provides a heat exchanger (not shown), including a heat exchange tube and a heat exchange fin assembly, wherein the heat exchange tube is arranged on the heat exchanger fin mounting tube 2 of the heat exchanger fin assembly. The specific structure of the heat exchange fin assembly refers to the above embodiment. Since a heat exchanger adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0055] The above is a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A heat exchanger fin, characterized in that: include: The fin body (1) has a first surface; a plurality of mounting tubes (2) are arranged at intervals on the fin body (1); the plurality of mounting tubes (2) are arranged in parallel and at intervals; the mounting tubes (2) are used to mount heat exchange tubes; Two deflector assemblies (4) are located between two adjacent mounting tubes (2) and are respectively arranged close to the two mounting tubes (2); the two deflector assemblies (4) are arranged at intervals to form a first airflow channel (8); the deflector assembly (4) comprises a deflector plate (42) and a deflector hole (41), and the deflector hole (41) passes through the fin body (1); the deflector plate (42) is protruding from the first surface and is located between the deflector hole (41) and the mounting tube (2), and a second airflow channel (7) is formed between the deflector plate (42) and the mounting tube (2), and the second airflow channel (7) is contracted along the airflow direction.

2. The heat exchanger fin according to claim 1, characterized in that: The deflector (42) is arranged in an arc shape at one end away from the mounting tube (2), and is arranged in an inclined manner with respect to the mounting tube (2) at one end close to the mounting tube (2) along the airflow direction.

3. The heat exchanger fin according to claim 1, characterized in that: It also includes a first guide flange (5), which is arranged on the first surface; the first guide flange (5) is located on the side of the deflection hole (41) away from the deflection plate (42), and is spaced apart from the deflection hole (41); the first guide flange (5) is arranged corresponding to the first airflow channel (8) to divert the airflow flowing out of the first airflow channel (8).

4. The heat exchanger fin according to claim 3, characterized in that: The first flow-guiding flange (5) is arranged in an arc shape and protrudes in the direction of the first air flow channel (8).

5. The heat exchanger fin according to claim 3, characterized in that: The invention also comprises a second flow guiding flange (6), wherein the second flow guiding flange (6) is arranged on the first surface; the second flow guiding flange (6) is located between two adjacent first flow guiding flanges (5); the second flow guiding flange (6) is arranged corresponding to the second air flow channel (7) so as to divert the air flow flowing out of the second air flow channel (7).

6. The heat exchanger fin according to claim 5, characterized in that: The second flow-guiding flange (6) is arranged in an arc shape and faces the direction of the mounting tube (2); Alternatively, the second flow-guiding flange (6) is arranged at an angle and protrudes in the direction of the mounting tube (2).

7. The heat exchanger fin according to any one of claims 1 to 6, characterized in that: It also includes a diverter flange (3) and a diverter hole (32); the diverter hole (32) passes through the fin body (1); the diverter flange (3) is protruding from the first surface and is located on the side of the baffle (42) away from the baffle hole (41); the side of the diverter flange (3) away from the baffle (42) is in a convex shape.

8. The heat exchanger fin according to claim 7, characterized in that: The side of the flow-dividing flange (3) facing away from the baffle plate (42) has two flow-dividing portions (31) arranged at an angle, and the two flow-dividing portions (31) extend towards the mounting pipe (2) respectively.

9. The heat exchanger fin according to claim 7, characterized in that: The flange height of the diversion flange (3) is lower than the flange height of the baffle plate (42).

10. A heat exchange fin assembly, characterized in that: The heat exchange fin assembly comprises at least two heat exchanger fins according to any one of claims 1 to 9, and a plurality of the heat exchanger fins are stacked.

11. A heat exchanger, comprising a heat exchange tube, characterized in that: The heat exchanger further comprises a heat exchange fin assembly as claimed in claim 10, wherein the heat exchange tube is arranged on a mounting tube (2) of a heat exchanger fin of the heat exchange fin assembly.

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