CN217383938U

CN217383938U - Heat exchanger fin and heat exchanger

Info

Publication number: CN217383938U
Application number: CN202220938062.7U
Authority: CN
Inventors: 原亚东; 张克鹏; 陈其功; 赵晓飞
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-06
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a heat exchanger fin and heat exchanger, heat exchanger fin include the main substrate, locate first shutter and second shutter on the main substrate, and the bending plate, first shutter and second shutter interval set up, wherein be formed with the windward passageway on the first shutter, be formed with the leeward passageway on the second shutter; the bending plate is arranged between the first louver and the second louver; the bending plate is provided with a bending convex part, and the bending convex part can guide the medium led in by the windward channel to the leeward channel and discharge the medium. Utility model's heat exchanger and during operation can turn to leeward passageway and discharge under the water conservancy diversion of the convex part of buckling on the bending plate by the leading-in medium of windward passageway to the flow of medium, and then reduced the windage that the medium received when passing through this heat exchanger fin, have the effect that improves the heat exchange efficiency who uses the heat exchanger that has this heat exchanger fin.

Description

Heat exchanger fin and heat exchanger

Technical Field

The utility model relates to a refrigeration technology field especially relates to heat exchanger fin and heat exchanger.

Background

In order to improve the heat exchange efficiency of the heat exchanger, two sets of louvers are usually arranged on the fins in the heat exchanger, so that when the heat exchanger works, air introduced into the heat exchanger passes through the fins, the air is firstly introduced from one set of louvers and then discharged from the other set of louvers, and therefore the contact area between the air and the fins is improved.

However, the conventional fin is usually arranged in a flat plate-like structure at a position between two sets of louvers, so that the air is subjected to a large wind resistance when passing through the fin, thereby affecting the heat exchange efficiency of the heat exchanger to which the fin is applied.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a heat exchanger fin and a heat exchanger capable of solving the above-mentioned problems.

A heat exchanger fin comprises a main base plate, a first louver and a second louver, wherein the first louver and the second louver are arranged on the main base plate and are arranged at intervals, a windward channel is formed on the first louver, and a leeward channel is formed on the second louver;

the heat exchanger fin further comprises a bending plate, and the bending plate is arranged between the first louver and the second louver; the bending plate is provided with a bending convex part, and the bending convex part can guide the medium introduced by the windward channel to the leeward channel and discharge the medium.

In this application, through the structure setting of above-mentioned buckling plate for this heat exchanger fin is applied to in the heat exchanger and the during operation, can turn to leeward passageway and discharge under the water conservancy diversion of the convex part of buckling on the buckling plate by the leading-in medium of windward passageway, so that the flow of medium, and then reduced the windage that the medium received when passing through this heat exchanger fin, have the effect that improves the heat exchange efficiency who uses the heat exchanger that has this heat exchanger fin.

In one embodiment, the bent convex part is provided with a circular arc structure.

It can be understood that, the bending convex part is set to be in the arc-shaped structure, so that the structural arrangement of the bending convex part is realized, and the effect of the bending convex part on the medium flow guiding effect is further improved.

In one embodiment, the bending plate further comprises a first extending plate part and a second extending plate part, wherein the first extending plate part and the second extending plate part are symmetrically arranged on two sides of the bending convex part and are respectively connected with the bending convex part;

wherein the first extension panel portion is capable of cooperating with the first louver and collectively forming the windward channel, and the second extension panel portion is capable of cooperating with the second louver and collectively forming the leeward channel.

It can be understood that, through the structural arrangement of the first extending plate portion and the second extending plate portion, the structural arrangement of the bending plate is specifically implemented, so that the bending convex portion on the bending plate guides the flow of the medium.

In one embodiment, the first louver and the second louver are symmetrically disposed on the left and right sides of the bending plate.

It can be understood that the first louver and the second louver are symmetrically arranged on the left side and the right side of the bent plate, so that the specific positions of the first louver, the bent plate and the second louver on the main base plate are specifically realized, and the function of further facilitating the medium to flow on the heat exchanger fin is achieved.

In one embodiment, the first louver includes a plurality of first deflectors distributed on the main substrate at equal intervals from the first extension plate portion;

and the second louver comprises a plurality of second deflectors which are distributed on the main base plate at equal intervals with the second extension plate part.

It can be understood that, through the above-mentioned reasonable structural arrangement of the first air deflector and the second air deflector, the structural arrangement of the first louver and the second louver is specifically realized.

In one embodiment, the thickness of the first guide plate is gradually increased along the air inlet direction of the windward channel.

It can be understood that, through the structural arrangement of the first guide plate, a thermal boundary layer between the medium and the wall surface of the first guide plate becomes thin, and further the heat exchange efficiency of the heat exchanger is improved.

In one embodiment, the thickness of the second guide plate is gradually reduced along the air outlet direction of the leeward channel.

It can be understood that the structural arrangement of the second guide plate has the function of further reducing the wind resistance when the medium passes through the leeward channel.

The application also claims a heat exchanger, which comprises a first collecting pipe, a second collecting pipe and a plurality of flat pipes arranged between the first collecting pipe and the second collecting pipe in parallel at intervals; the heat exchanger also comprises a plurality of rows of parallel and spaced heat exchanger fins, wherein each heat exchanger fin is the heat exchanger fin of any one of the above.

In this application, through the rational structure setting of above-mentioned heat exchanger fin, the windage that receives when can having reduced the medium through this heat exchanger fin has the effect that improves the heat exchange efficiency of this heat exchanger.

In one embodiment, there is defined: the inclination angle of the first guide plate is alpha, the distance between two adjacent first guide plates is X, and the distance between two adjacent rows of heat exchanger fins is D, wherein D is X tan (alpha).

It can be understood that through the structural arrangement, the heat exchanger can be installed with a plurality of rows of heat exchanger fins by taking the formula as a reference standard, so that the heat exchange efficiency of the heat exchanger during operation can be improved, and the weight and the cost of the heat exchanger are also reduced.

In one embodiment, there is defined: the length of a flowing period of the heat exchanger fins is T, the distance between the heat exchanger fins in a single row is L, and the number of movement periods of the heat exchanger fins in the single row is N, wherein T is L/N.

It can be understood that through the structural arrangement, the heat exchanger fin is applied to the heat exchanger, and the single-row heat exchanger fin can be installed by taking the formula as a reference standard, so that the heat exchange efficiency of the heat exchanger during operation can be improved, and the weight and the cost of the heat exchanger are also reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the conventional technologies, the drawings required to be used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a heat exchanger fin provided in an embodiment of the present application;

FIG. 2 is a schematic structural view of another perspective of a heat exchanger fin according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a cross-sectional view taken along line a-a of fig. 2.

10, a main substrate; 20. a first louver; 21. a first baffle; 30. a second louver; 31. a second baffle; 40. a bending plate; 41. bending the convex part; 42. a first extension plate portion; 43. a second extension plate portion; 100. a heat exchanger fin; 101. a windward channel; 102. a leeward channel.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The use of the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions in the description of the invention is for illustrative purposes only and does not represent a unique embodiment.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The heat exchanger claimed by the application comprises a first collecting pipe (not shown), a second collecting pipe (not shown), a plurality of flat pipes (not shown) arranged between the first collecting pipe and the second collecting pipe in parallel at intervals, and a plurality of rows of heat exchanger fins 100, wherein each row of heat exchanger fins 100 are respectively and vertically arranged on the corresponding flat pipe. It should be noted that the installation manner of the heat exchanger fin 100 on the flat tube, the connection manner between the flat tube and the first collecting pipe and the second collecting pipe, and the working principle of the heat exchanger all adopt the conventional form of the existing heat exchanger, and are not described herein.

As shown in fig. 1 to 3, a heat exchanger fin 100 according to an embodiment of the present application includes a main substrate 10, and a first louver 20, a second louver 30, and a bent plate 40 disposed on the main substrate 10.

The first louver 20 and the second louver 30 are arranged at intervals, wherein a windward channel 101 is formed on the first louver 20, and a leeward channel 102 is formed on the second louver 30, so that when the heat exchanger fin 100 is applied to a heat exchanger for use, a medium introduced into the heat exchanger can be introduced from the windward channel 101 of the heat exchanger fin 100 and then discharged from the leeward channel 102 when passing through the heat exchanger fin 100.

In the present application, the bending plate 40 is disposed between the first louver 20 and the second louver 30, wherein the bending plate 40 has a bending protrusion 41, and the bending protrusion 41 can guide the medium introduced into the windward channel 101 to the leeward channel 102 and discharge the medium. That is to say, the bending convex portion 41 on the bending plate 40 plays a role of guiding the medium passing through the heat exchanger fin 100, so as to facilitate the flow of the medium, thereby reducing the wind resistance suffered by the medium passing through the heat exchanger fin 100, and further improving the heat exchange efficiency of the heat exchanger to which the heat exchanger fin 100 is applied.

The bending convex part 41 is set to be in an arc-shaped structure, so that the structural arrangement of the bending convex part 41 is realized, and the medium diversion effect of the bending convex part 41 is further improved. It should be understood that the bent convex portion 41 is not limited to the arc-shaped structure shown in the drawings, and those skilled in the art can also set the shape of the bent convex portion 41 to be a trapezoid, a triangle or other irregular convex structure.

The bending plate 40 further includes a first extending plate portion 42 and a second extending plate portion 43, the first extending plate portion 42 and the second extending plate portion 43 are symmetrically disposed on two sides of the bending protrusion 41 and are respectively connected to the bending protrusion 41; the first extension plate 42 cooperates with the first louver 20 to form a windward channel 101, and the second extension plate 43 cooperates with the second louver 30 to form a leeward channel 102, so as to implement the structural arrangement of the bending plate 40.

It will be appreciated that the windward channel 101 is formed by the first extension plate portion 42 cooperating with the first louver 20 and the leeward channel 102 is formed by the second extension plate portion 43 cooperating with the second louver 30, so that the medium introduced by the windward channel 101 can be diverted directly to the leeward channel 102 under the diversion of the bending protrusion 41 to facilitate the diversion of the medium by the bending plate 40.

The first louvers 20 and the second louvers 30 are symmetrically disposed on the left and right sides of the bent plate 40, so that the first louvers 20, the second louvers 30, and the bent plate 40 are disposed at specific positions on the main substrate 10, and the heat exchanger fin 100 is further facilitated to flow a medium.

Wherein, the first louver 20 includes a plurality of first deflectors 21, and the plurality of first deflectors 21 are distributed on the main base plate 10 at equal intervals from the first extension plate portion 42; and, the second louver 30 includes a plurality of second deflectors 31, and the plurality of second deflectors 31 and the second extension plate 43 are distributed on the main substrate 10 at equal intervals, thereby realizing the structural arrangement of the first louver 20 and the second louver 30.

Along the air inlet direction of the windward channel 101, the thickness of the first guide plate 21 is gradually increased, so that the thermal boundary layer between the medium and the wall surface of the first guide plate 21 is thinned, and the heat exchange efficiency of the heat exchanger is further improved.

Along the air-out direction of leeward channel 102, the thickness of second guide plate 31 reduces gradually, has the effect of further reducing the windage when the medium passes through leeward channel 102.

In addition, as shown in fig. 4, define: the inclination angle of first guide plate 21 is alpha, and the interval of two adjacent first guide plates 21 is X, and the interval of two adjacent rows of heat exchanger fins is D, and wherein, D is X tan (alpha) for this heat exchanger fin 100 is applied to in the heat exchanger, can use above-mentioned formula as the reference standard to carry out multirow heat exchanger fin 100's installation, so not only can improve the heat exchange efficiency of heat exchanger during operation, has also reduced the weight and the cost of heat exchanger moreover.

And, defining: the length of the flow period of the heat exchanger fin 100 is T, the distance between the single-row heat exchanger fins 100 is L, and the number of the movement periods of the single-row heat exchanger fins 100 is N, wherein T is L/N, so that the heat exchanger fin 100 is applied to a heat exchanger, and the single-row heat exchanger fins 100 can be installed by using the above formula as a reference standard, thereby not only improving the heat exchange efficiency of the heat exchanger during operation, but also reducing the weight and cost of the heat exchanger. It should be noted that the flow cycle length T of the heat exchanger fin 100 may be the maximum distance between the windward channel 101 and the leeward channel 102.

By last, the heat exchanger of this application can design and make under foretell formula, not only can improve the area of contact leading-in to heat exchanger internal medium and heat exchanger fin 100 like this, and then has improved the heat of taking away when the medium flows through this heat exchanger, has the heat exchange efficiency who improves the heat exchanger promptly, but also can make heat exchanger fin 100 in the heat exchanger structural arrangement more reasonable for the medium flows more evenly in this heat exchanger, reaches the effect that reduces the windage.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A heat exchanger fin comprises a main base plate (10), a first louver (20) and a second louver (30) which are arranged on the main base plate (10), wherein the first louver (20) and the second louver (30) are arranged at intervals, a windward channel (101) is formed on the first louver (20), and a leeward channel (102) is formed on the second louver (30);

characterized in that the heat exchanger fin (100) further comprises a bent plate (40), the bent plate (40) being disposed at a position between the first louver (20) and the second louver (30); the bending plate (40) is provided with a bending convex part (41), and the bending convex part (41) can guide the medium introduced by the windward channel (101) to the leeward channel (102) and discharge the medium.

2. The heat exchanger fin according to claim 1, wherein the bent convex portion (41) is provided in a circular arc-shaped configuration.

3. The heat exchanger fin as recited in claim 1, wherein the bent plate (40) further comprises a first extension plate portion (42) and a second extension plate portion (43), the first extension plate portion (42) and the second extension plate portion (43) being symmetrically disposed on both sides of the bent convex portion (41) and being connected to the bent convex portion (41), respectively;

wherein the first extension plate (42) is cooperable with the first louver (20) and jointly forms the windward channel (101), and the second extension plate (43) is cooperable with the second louver (30) and jointly forms the leeward channel (102).

4. The heat exchanger fin according to claim 3, wherein the first louver (20) and the second louver (30) are symmetrically spaced on both left and right sides of the bent plate (40).

5. The heat exchanger fin according to claim 4, wherein the first louver (20) includes a plurality of first deflectors (21), the plurality of first deflectors (21) being distributed on the primary base plate (10) at equal intervals from the first extension plate portion (42);

and the second louver (30) comprises a plurality of second deflectors (31), and the plurality of second deflectors (31) and the second extension plate part (43) are distributed on the main base plate (10) at equal intervals.

6. The heat exchanger fin as recited in claim 5, characterised in that the thickness of the first baffle (21) increases gradually along the direction of the incoming air of the windward channel (101).

7. The heat exchanger fin as recited in claim 5, wherein the thickness of the second deflector (31) is gradually reduced along the air outlet direction of the leeward channel (102).

8. A heat exchanger comprises a first collecting pipe, a second collecting pipe and a plurality of flat pipes which are parallelly arranged between the first collecting pipe and the second collecting pipe at intervals; characterized in that the heat exchanger further comprises a plurality of parallel spaced rows of heat exchanger fins (100), wherein each of the heat exchanger fins (100) is a heat exchanger fin (100) according to any one of claims 5 to 7.

9. The heat exchanger according to claim 8, characterized in that it defines: the inclination angle of the first guide plates (21) is alpha, the distance between two adjacent first guide plates (21) is X, and the distance between two adjacent rows of the heat exchanger fins (100) is D, wherein D is X tan alpha.

10. The heat exchanger according to claim 8, characterized in that it defines: the length of a flow cycle of the heat exchanger fin (100) is T, the distance of the single row of heat exchanger fins (100) is L, and the number of movement cycles of the single row of heat exchanger fins (100) is N, wherein T is L/N.