A fin for a heat exchanger

Abstract

The utility model relates to a kind of fin of heat exchanger, comprising: fin plate, face and spoiler portion formed on the face portion in parallel alternately on the fin plate;Wherein, the fin plate is formed after reciprocating bending and forms the space of arrangement;The edge of the spoiler portion transitions to the face portion;Medium flows into the space, medium flows along the face portion, and medium is detained in the spoiler portion.Solve the problem that the medium flow is orderly and the flow rate is relatively fast in the prior art, and the heat exchange effect is limited.

Description

Technical Field

[0001] This utility model relates to the field of fins, and more particularly to a fin for a heat exchanger. Background Technology

[0002] The fins of a heat exchanger are formed by repeatedly bending fin plates to create gaps between adjacent fins. The fins are stacked, with partitions welded between adjacent fins, and cold and hot media are passed between them to complete heat exchange.

[0003] By machining reciprocating inclined surfaces between the fins, the path of the medium flowing between the fins is lengthened, thereby improving the heat exchange effect. However, at this time, the medium flows in an orderly manner and still flows at a relatively fast speed, so the improvement in heat exchange effect is limited.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a heat exchanger fin to solve the problem that the heat exchange effect is limited in the prior art due to the orderly and fast flow of the medium.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A heat exchanger fin; It includes fins, facets alternately formed on the fins, and flow-deflecting portions formed on the facets; wherein the fins are bent back and forth to form an arrangement space; the edges of the flow-deflecting portions transition to the facets; a medium flows into the space, flows along the facets, and remains in the flow-deflecting portions.

[0007] A further technical solution is that the face includes a main surface formed along the medium flow direction and a side surface connecting adjacent to the main surface; wherein the main surface and the side surface are connected to the fin.

[0008] A further technical solution is that the disturbance part includes a disturbance protrusion formed on one side of the face and a disturbance recess formed on the other side of the face; wherein the positions of the disturbance protrusion and the disturbance recess correspond to each other.

[0009] A further technical solution is that the turbulence protrusions and turbulence depressions are alternately located on both sides of the face.

[0010] A further technical solution is that the distribution density of the turbulence-causing part is positively correlated with the surface area; and the size of the turbulence-causing part is positively correlated with the medium flow rate.

[0011] A further technical solution is that the dimensions of each of the aforementioned baffles differ.

[0012] A further technical solution includes a flow-blocking recess formed on the turbulence protrusion and a flow-blocking protrusion formed within the turbulence recess; wherein the positions of the flow-blocking recess and the flow-blocking protrusion correspond; when the medium flows along the turbulence protrusion, it remains in the flow-blocking recess, and when the medium flows into the turbulence recess, it acts on the flow-blocking protrusion.

[0013] A further technical solution includes a diversion recess formed on the top of the turbulence protrusion and a diversion protrusion formed at the bottom of the turbulence recess; wherein the positions of the diversion recess and the diversion protrusion correspond to each other; when the medium flows along the turbulence protrusion to the top, it is left in the diversion recess, and when the medium flows into the bottom of the turbulence recess, it acts on the diversion protrusion.

[0014] A further technical solution is to form a step around the disturbance part.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: (1) The face changes the shape of the side of the space, prolongs the flow path of the medium in the space and improves the heat exchange efficiency; the medium contacting the face slows down the flow rate of the medium and prolongs the time of the medium in the space, thus improving the heat exchange efficiency; the medium on the turbulence section and the medium on the face form a flow rate difference, and the two media influence each other and gradually diffuse, so that the heat exchange is uniform; the medium flows along the face, a part of the medium is left in the turbulence section, and a part of the medium continues to flow along the face; the left medium changes the flow direction of the subsequent medium after contacting the subsequent flowing medium, and with the mutual influence between the media, the medium gradually evolves from orderly flow to disordered flow, so that the medium is evenly and slowly distributed, ensuring the heat exchange effect while improving the heat exchange efficiency.

[0016] (2) An angle is formed between the main surface, side surface and fins, and the contact during the flow of the medium creates resistance, which prolongs the time of the medium in the space and improves the heat exchange efficiency; turbulence protrusions and turbulence depressions are formed in the same space; the flow state of the medium in different spaces is similar, ensuring the uniformity of heat exchange; different sizes of turbulence parts have different degrees of influence on the medium, and the medium can be dispersed evenly; at the same time, different sizes of turbulence parts can cope with different flow rates of the medium, improving the adaptability of the heat exchanger fins.

[0017] (3) When the medium diffuses along the side of the turbulence protrusion, the medium flows into the flow-blocking depression and affects the subsequent diffused medium, changing the flow direction of the subsequent medium, making the medium distribute more evenly and further improving the heat exchange effect; when the medium flows into the turbulence depression, it contacts the flow-blocking protrusion, prolonging the medium's residence time, and the medium can continue to affect the subsequent flowing medium in the turbulence depression.

[0018] (4) By using flow-changing depressions and flow-changing protrusions to collect the medium at the top of the turbulence protrusions and the medium at the bottom of the turbulence depressions, the effect of the turbulence protrusions and turbulence depressions on the medium is enhanced; when the medium flows along the side of the turbulence protrusions, the steps stratify the flow of the medium, and the medium flows evenly on different steps; when the medium flows into the inner surface of the turbulence depression, the steps stratify the flow of the medium, and the medium flows evenly on different steps. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the heat exchanger fins according to the first embodiment of this utility model is shown.

[0020] Figure 2 The diagram shows a top view of the location of the turbulence-causing portion in the fins of the heat exchanger according to the first embodiment of this utility model.

[0021] Figure 3 The diagram shows a top view of the location of the turbulence-causing portion in the fins of the heat exchanger according to the second embodiment of this utility model.

[0022] The following labels are used in the attached diagram: 1. Fin; 11. Space; 2. Face; 21. Main face; 22. Side; 3. Turbation part; 31. Turbation protrusion; 32. Turbation depression; 4. Step; 41. Flow obstruction depression; 42. Flow obstruction protrusion; 43. Flow diversion depression; 44. Flow diversion protrusion. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Figure 1 A schematic diagram of the structure of the heat exchanger fins according to the first embodiment of this utility model is shown. Figure 2 This diagram shows a top view of the turbulence-causing portion of the heat exchanger fins according to the first embodiment of this invention. (Combined with...) Figure 1 and Figure 2As shown, this utility model discloses a heat exchanger fin comprising: a fin plate 1, facets 2 alternately formed on the fin plate 1, and flow-disrupting portions 3 formed on the facets 2. The fin plate 1 is bent alternately upwards and downwards, forming spaces 11 at adjacent bending positions, with each adjacent space 11 arranged sequentially. The medium flows linearly within the spaces 11, and the fin plate 1 isolates each adjacent space 11, allowing the medium within each adjacent space 11 to complete heat exchange. The facets 2 are formed in one step on the fin plate 1, acting on the sides of the spaces 11, changing the shape of the sides of the spaces 11, extending the flow path of the medium within the spaces 11, and improving heat exchange efficiency. When the medium flows into the spaces 11, the medium contacts the facets 2, which slow down the flow velocity of the medium, prolonging the time the medium spends within the spaces 11, and improving heat exchange efficiency.

[0025] The edge of the turbulence section 3 transitions towards the face section 2, allowing the medium to smoothly transition to the turbulence section 3 when it flows along the face section 2. A velocity difference is formed between the medium on the turbulence section 3 and the medium on the face section 2, and the two media influence each other, causing the medium to gradually diffuse and resulting in uniform heat exchange.

[0026] The medium flows into space 11 and along face 2. A portion of the medium is retained in the turbulence section 3, while the remaining medium continues to flow along face 2. The retained medium flows within the turbulence section 3, and upon contact with the subsequent flowing medium, it changes the flow direction of the subsequent medium. As the media interact with each other, the medium gradually evolves from ordered flow to disordered flow, resulting in a uniform and slow distribution of the medium, which ensures heat exchange effect while improving heat exchange efficiency.

[0027] The face 2 includes a main surface 21 formed along the direction of medium flow and side surfaces 22 connecting adjacent main surfaces 21. Exemplarily, the main surface 21 is trapezoidal, and the side surfaces 22 are triangular. The main surface 21 and side surfaces 22 connect to the fin 1. During the flow of the medium within the space 11, the medium flows along the face 2, transitioning sequentially between the main surface 21 and the side surfaces 22, thus extending the flow path. An angle is formed between the main surface 21, side surfaces 22, and fin 1, creating contact resistance during medium flow and prolonging the time the medium spends within the space 11, thereby improving heat exchange efficiency.

[0028] The deflector 3 includes a deflector protrusion 31 formed on one side of the face 2 and a deflector recess 32 formed on the other side of the face 2. The deflector 3 is formed in a single process, including but not limited to rolling and stamping. The positions of the deflector protrusion 31 and the deflector recess 32 correspond to each other. The deflector protrusion 31 and the deflector recess 32 are formed within adjacent spaces 11.

[0029] The medium flows within space 11 and contacts the turbulence protrusion 31. The medium diffuses along the side of the turbulence protrusion 31, resulting in uniform heat transfer within space 11. The medium flows into adjacent spaces 11 and into the turbulence recess 32. Within the turbulence recess 32, the medium influences the subsequent flow of the medium, changing its flow direction and ensuring a uniform and slow distribution, thus improving heat transfer efficiency while maintaining heat transfer effectiveness.

[0030] Turbulence protrusions 31 and turbulence depressions 32 are alternately located on both sides of the face 2. This ensures that both turbulence protrusions 31 and turbulence depressions 32 are formed within the same space 11, making the flow state of the medium in different spaces 11 similar and guaranteeing the uniformity of heat transfer.

[0031] Different heat exchanger models result in different fin sizes. Larger fins result in a larger surface area (2) and a higher density of turbulence-prone sections (3) on that surface. Smaller fins result in a smaller surface area (2) and a lower density of turbulence-prone sections (3). When the medium flow rate is high, the size of the turbulence-prone sections (3) increases accordingly. When the medium flow rate is low, the size of the turbulence-prone sections (3) decreases accordingly.

[0032] The dimensions of each turbulence section 3 vary. Large and small turbulence sections 3 are formed simultaneously on the same surface 2, allowing the different sizes of turbulence sections 3 to exert varying degrees of influence on the medium, ensuring uniform dispersion. Furthermore, the different sizes of turbulence sections 3 can handle media with different flow rates, improving the adaptability of the heat exchanger fins.

[0033] Second embodiment: Figure 3 This diagram shows a top view of the turbulence-causing portion in the fins of the heat exchanger according to the second embodiment of this invention. (Combined with...) Figures 1-3 As shown, the heat exchanger fins also include flow-blocking recesses 41 formed on the turbulence protrusions 31 and flow-blocking protrusions 42 formed within the turbulence recesses 32. The flow-blocking recesses 41 and flow-blocking protrusions 42 are formed in a single process, including but not limited to rolling and stamping. The positions of the flow-blocking recesses 41 and flow-blocking protrusions 42 correspond to each other. The flow-blocking recesses 41 and flow-blocking protrusions 42 are formed in adjacent spaces 11. When the medium flows along the turbulence protrusions 31, it remains in the flow-blocking recesses 41; when the medium flows into the turbulence recesses 32, it acts on the flow-blocking protrusions 42.

[0034] The flow-blocking recess 41 is formed on the side of the turbulence protrusion 31. When the medium diffuses and flows along the side of the turbulence protrusion 31, the medium flows into the flow-blocking recess 41. The medium in the flow-blocking recess 41 affects the subsequent diffused medium, changes the flow direction of the subsequent medium, makes the medium distribute more evenly and accelerates the heat exchange effect.

[0035] The flow-blocking protrusion 42 is formed on the inner surface of the turbulence recess 32. When the medium flows into the turbulence recess 32, the medium contacts the flow-blocking protrusion 42, which prolongs the time the medium stays in the turbulence recess 32. The medium can continuously affect the subsequent flowing medium in the turbulence recess 32.

[0036] The heat exchanger fins also include a diversion recess 43 formed on the top of the turbulence protrusion 31 and a diversion protrusion 44 formed on the bottom of the turbulence recess 32. The diversion recess 43 and the diversion protrusion 44 are formed in a single process, including but not limited to rolling and stamping. The positions of the diversion recess 43 and the diversion protrusion 44 correspond to those of the diversion protrusion 44. The diversion recess 43 and the diversion protrusion 44 are formed in adjacent spaces 11. When the medium flows along the turbulence protrusion 31 to the top, it remains in the diversion recess 43; when the medium flows into the bottom of the turbulence recess 32, it acts on the diversion protrusion 44.

[0037] The medium flows in space 11 and contacts the turbulence protrusion 31. The medium diffuses and flows along the side of the turbulence protrusion 31. The amount of medium flowing to the top of the turbulence protrusion 31 is small. The medium enters the flow-changing depression 43 at the top of the turbulence protrusion 31 and remains there. The medium gradually accumulates in the flow-changing depression 43. As the amount of medium increases, the medium flows out of the flow-changing depression 43 and diffuses and flows along the side of the turbulence protrusion 31 again.

[0038] The medium flows in the adjacent space 11 and flows into the turbulence recess 32. The medium remains on the inner surface of the turbulence recess 32. The amount of medium flowing to the bottom of the turbulence recess 32 is small. The medium contacts the flow-changing protrusion 44 at the bottom of the turbulence recess 32 and diffuses. The medium flows along the flow-changing protrusion 44, changes the flow direction of the medium, and re-collects and remains on the inner surface of the turbulence recess 32.

[0039] The medium at the top of the turbulence protrusion 31 and the medium at the bottom of the turbulence depression 32 are collected by the diversion depression 43 and the diversion protrusion 44, thereby enhancing the effect of the turbulence protrusion 31 and the turbulence depression 32 on the medium.

[0040] A plurality of steps 4 are formed around the turbulence-inducing portion 3, forming a continuous series of steps 4 on the turbulence-inducing portion 3. The steps 4 are formed on the side surface of the turbulence-inducing protrusion 31 and the inner surface of the turbulence-inducing recess 32, respectively. When the medium flows along the side surface of the turbulence-inducing protrusion 31, the steps 4 stratify the flow of the medium, allowing the medium to flow on different steps 4, thus ensuring uniform medium distribution. When the medium flows into the inner surface of the turbulence-inducing recess 32, the steps 4 stratify the flow of the medium, allowing the medium to flow on different steps 4, thus ensuring uniform medium distribution.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A heat exchanger fin, characterized in that, include: A fin (1), a face (2) alternately formed on the fin (1), and a flow-dispersing portion (3) formed on the face (2); wherein the fin (1) is bent back and forth to form an arranged space (11); the edge of the flow-dispersing portion (3) transitions to the face (2); the medium flows into the space (11), the medium flows along the face (2), and the medium remains in the flow-dispersing portion (3).

2. The fins of the heat exchanger as described in claim 1, characterized in that, The face (2) includes a main face (21) formed along the medium flow direction and a side face (22) connecting adjacent main faces (21); wherein the main face (21) and the side face (22) are connected to the fin (1).

3. The fins of the heat exchanger as described in claim 2, characterized in that, The turbulence portion (3) includes a turbulence protrusion (31) formed on one side of the face (2) and a turbulence recess (32) formed on the other side of the face (2); wherein the positions of the turbulence protrusion (31) and the turbulence recess (32) correspond to each other.

4. The fins of the heat exchanger as described in claim 3, characterized in that, The turbulence protrusion (31) and the turbulence depression (32) are alternately located on both sides of the face (2).

5. The fins of the heat exchanger as described in claim 3, characterized in that, The distribution density of the turbulence-disrupting part (3) is positively correlated with the area of ​​the face (2); the size of the turbulence-disrupting part (3) is positively correlated with the flow rate of the medium.

6. The fins of the heat exchanger as described in claim 3, characterized in that, The dimensions of each of the aforementioned turbulence-disrupting parts (3) differ.

7. The fins of the heat exchanger as described in claim 3, characterized in that, It also includes a flow-blocking recess (41) formed on the turbulence protrusion (31) and a flow-blocking protrusion (42) formed in the turbulence recess (32); wherein the position of the flow-blocking recess (41) corresponds to the position of the flow-blocking protrusion (42); when the medium flows along the turbulence protrusion (31), it is placed in the flow-blocking recess (41), and when the medium flows into the turbulence recess (32), it acts on the flow-blocking protrusion (42).

8. The fins of the heat exchanger as described in claim 7, characterized in that, It also includes a diversion recess (43) formed on the top of the turbulence protrusion (31) and a diversion protrusion (44) formed at the bottom of the turbulence recess (32); wherein the position of the diversion recess (43) corresponds to the position of the diversion protrusion (44); when the medium flows along the turbulence protrusion (31) to the top, it is left in the diversion recess (43), and when the medium flows into the bottom of the turbulence recess (32), it acts on the diversion protrusion (44).

9. The fins of the heat exchanger as described in claim 3, characterized in that, A step (4) is formed around the turbulence section (3).

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