CN213272938U - Fin and heat exchanger - Google Patents
Fin and heat exchanger Download PDFInfo
- Publication number
- CN213272938U CN213272938U CN202022181461.7U CN202022181461U CN213272938U CN 213272938 U CN213272938 U CN 213272938U CN 202022181461 U CN202022181461 U CN 202022181461U CN 213272938 U CN213272938 U CN 213272938U
- Authority
- CN
- China
- Prior art keywords
- fin
- sheet body
- flat sheet
- kink
- flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005452 bending Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 230000005494 condensation Effects 0.000 abstract description 8
- 238000009833 condensation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 238000010408 sweeping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
This application relates to heat transfer technical field on the whole, particularly, relates to a fin and heat exchanger, the fin includes flat lamellar body and is located the corrugated lamellar body of flat lamellar body leeward side, the corrugated lamellar body includes first kink and second kink, flat lamellar body, first kink and the second kink all is provided with the water conservancy diversion structure, and first kink sets up for flat lamellar body slope, and the air current flows through flat lamellar body, first kink and second kink in proper order, and first kink and second kink form a peak bending structure, avoid current fin leeward side because of there being a plurality of peak bending and the phenomenon of indiscriminate flows, and the water conservancy diversion structure is used for guiding the flow of air current and condensation dew, and the water conservancy diversion structure has increased the heat transfer area of fin, has improved fin heat transfer effect.
Description
Technical Field
This application generally relates to heat transfer technical field, particularly, relates to a fin and heat exchanger.
Background
The current outdoor unit of the air conditioner is a tube fin heat exchanger, when the outdoor unit serves as a condenser, the outdoor unit heats outdoor air, when the outdoor unit serves as an evaporator, the outdoor unit cools the outdoor air, the types of the tube fin heat exchanger fins of the outdoor unit are generally corrugated fins and bridge fins, the corrugated fins are influenced by the structure of the outdoor unit in the using process, the wind resistance is large, and the heat exchange capacity is weak.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the above technical problem, a main object of the present application is to provide a fin and a heat exchanger.
In order to realize the purpose of the utility model, the following technical scheme is adopted in the application:
a fin comprises a flat sheet body and a corrugated sheet body positioned on the leeward side of the flat sheet body, wherein the corrugated sheet body comprises a first bent part and a second bent part;
the flat sheet body, the first bending part and the second bending part are provided with flow guide structures, and the flow guide structures are used for guiding airflow and condensed dew to flow.
Further, in some embodiments of the present disclosure, the flat sheet body is provided with a plurality of rows of the flow guiding structures arranged along a length direction of the fins.
Further, in some embodiments of the present disclosure, the flat sheet body includes a first flat sheet portion and a second flat sheet portion located on a leeward side of the first flat sheet portion, and the second flat sheet portion is connected to the corrugated sheet body;
the first plate part and the second plate part are respectively provided with a plurality of rows of the flow guide structures which are arranged along the length direction of the fins.
Further, in some embodiments of the present disclosure, the first bending portion is provided with a plurality of rows of the flow guiding structures arranged along a length direction of the fin.
Further, in some embodiments of the present disclosure, the second bending portion is provided with a plurality of rows of the flow guiding structures arranged along a length direction of the fin.
Further, in some embodiments of the present disclosure, the two adjacent rows of flow guiding structures are arranged in a staggered manner in the air inlet direction of the fins.
Further, in some embodiments of the present disclosure, along an air inlet direction of the fin, a length of the flat sheet body is smaller than a projection length of the corrugated sheet body on a plane where the flat sheet body is located.
Further, in some embodiments of the present disclosure, the first bending portion is located on an air inlet side of the second bending portion, and in an air inlet direction of the fin, a projection length of the first bending portion on a plane where the flat sheet body is located is greater than a projection length of the second bending portion on the plane where the flat sheet body is located.
Further, in some embodiments of the present disclosure, any of the above-mentioned flow guiding structures is a convex hull or a concave pit.
A heat exchanger comprises the fin.
According to the technical scheme, the fin and the heat exchanger have the advantages and positive effects that:
the wind resistance is low, the heat exchange effect is good, and the leeward side turbulence of the fins is avoided.
The fin includes the flat lamellar body and is located the corrugated sheet body of flat lamellar body leeward side, the corrugated sheet body includes first kink and second kink, flat lamellar body, first kink and the second kink all is provided with the water conservancy diversion structure, and first kink sets up for flat lamellar body slope, and the air current flows through flat lamellar body, first kink and second kink in proper order, and first kink and second kink form a peak structure, avoid fin leeward side because of there being a plurality of peaks and the sinuous flow, and the water conservancy diversion structure is used for guiding the flow of air current and condensation dew, has increased the heat transfer area of fin, has improved fin heat transfer effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic diagram illustrating the construction of a fin-mounted heat exchange tube according to an exemplary embodiment.
FIG. 2 is a schematic top view of the fin of FIG. 1, according to an exemplary embodiment.
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2 illustrating a fin according to an exemplary embodiment.
FIG. 4 is a schematic cross-sectional view B-B of FIG. 2 illustrating a fin according to an exemplary embodiment.
FIG. 5 is a schematic cross-sectional A-A airflow flow diagram of FIG. 2 illustrating a fin according to an exemplary embodiment.
Fig. 6 is a schematic diagram showing the comparison between the efficiency, heat exchange capacity and condensation capacity of the fins of the present solution and the fins of the prior art with the reference fins, respectively, according to an exemplary embodiment.
Wherein the reference numerals are as follows:
100-a flat sheet body; 200-corrugated sheet body; 300-a flow guide structure; 400-mounting holes; 500-heat exchange tube;
110-a first plate portion; 120-a second plate portion; 210-a first bend; 220-second bending part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The scheme provides a fin and a heat exchanger, the fin comprises a flat sheet body 100 and a corrugated sheet body 200 positioned on the leeward side of the flat sheet body 100, the corrugated sheet body 200 comprises a first bent part 210 and a second bent part 220, the flat sheet body 100, the first bent part 210 and the second bent part 220 are all provided with a flow guide structure 300, the first bent part 210 is obliquely arranged relative to the flat sheet body 100, airflow sequentially flows through the flat sheet body 100, the first bent part 210 and the second bent part 220 form a peak bending structure, the turbulent flow caused by a plurality of peaks bending on the leeward side of the fin is avoided, the flow guide structure 300 is used for guiding the airflow and the flow of condensed dew, the heat exchange area of the fin is increased, the heat exchange effect of the fin is improved, the fin formed by combining the flat sheet body 100 and the corrugated sheet body 200 is positioned on the windward side of the fin, the windward side of the fin, corrugated sheet body 200 has a peak of inflection, has reduced the windage when guaranteeing fin heat transfer effect.
As shown in fig. 1-4, the fin includes a flat sheet body 100 and a corrugated sheet body 200 arranged along an air inlet direction, the corrugated sheet body 200 includes a first bending portion 210 and a second bending portion 220, the first bending portion 210 is connected to the flat sheet body 100, the second bending portion 220 is connected to the first bending portion 210, the second bending portion 220 is located on a leeward side of the first bending portion 210, the first bending portion 210 is inclined with respect to the flat sheet body 100, and the first bending portion 210 and the second bending portion 220 are connected to form a peak folding structure.
As shown in fig. 1, the flat sheet body 100, the first bending portion 210 and the second bending portion 220 are all provided with a flow guiding structure 300, the flow guiding structure 300 is used for guiding the flow of the airflow and the condensed dew, in this scheme, the flow guiding structure 300 may be a convex hull or a concave pit, and the protruding direction of the convex hull is the same as the direction of the peak folding structure formed by the first bending portion 210 and the second bending portion 220.
The flat sheet body 100 includes a first flat sheet portion 110 and a second flat sheet portion 120, the second flat sheet portion 120 is located between the first flat sheet portion 110 and the first bent portion 210, and the second flat sheet portion 120 connects the first flat sheet portion 110 and the first bent portion 210, respectively.
In this embodiment, the first plate portion 110, the second plate portion 120, the first bending portion 210, and the second bending portion 220 are respectively provided with a plurality of rows of flow guiding structures 300 arranged along the length direction of the fins, the flow guiding structures 300 of two adjacent rows of fins are staggered on the fins, and any one of the flow guiding structures 300 may be a convex hull or a concave pit, that is, in the air inlet direction of the fins, the fins have a discontinuous convex hull or concave pit structure.
With reference to fig. 3-4, fig. 3 is a schematic sectional view a-a of fig. 2 of a fin according to an exemplary embodiment, fig. 4 is a schematic sectional view B-B of fig. 2 of a fin according to an exemplary embodiment, the first plate portion 110, the second plate portion 120, the first bent portion 210, and the second bent portion 220 are respectively provided with a plurality of rows of flow guiding structures 300 arranged along a length direction of the fin, and the flow guiding structures 300 of two adjacent rows on the fin are arranged in a staggered manner in an air inlet direction. As shown in fig. 2, the first plate portion 110 is provided with a first row of flow guiding structures 300 arranged along the length direction of the fins, the second plate portion 120 is provided with a second row of flow guiding structures 300 arranged along the length direction of the fins, the first bent portion 210 is provided with a third row of flow guiding structures 300 and a fourth row of flow guiding structures 300 arranged along the length direction of the fins in an extending manner, the third row of flow guiding structures 300 is located on the windward side of the fourth row of flow guiding structures 300, and the second bent portion 220 is provided with a fifth row of flow guiding structures 300 arranged along the length direction of the fins. In this embodiment, any one of the first row of flow guiding structures 300, the second row of flow guiding structures 300, the third row of flow guiding structures 300, the fourth row of flow guiding structures 300, and the fifth row of flow guiding structures 300 may be a convex hull or a concave hull. In this embodiment, the width direction of the fins is the same as the gas flow direction, and the length direction of the fins is perpendicular to the gas flow direction.
Under the condensation working condition, condensation water is easy to gather and grow at convex hulls or concave pits on the surfaces of fins, formed liquid drops can move downwards in a sweeping mode after a period of time, under the working condition that the fins are not frosted, the downward sweeping of the liquid drops can play a self-cleaning role on the surfaces of the fins, and under the working condition that the fins are frosted, the condensation water on the surfaces of the swept fins is less than areas, which are not swept by the liquid drops, of the fins, so that the thickness of frost layers in the areas, which are swept by the liquid drops, of the fins is reduced due to the reduction of the amount of the condensation water, after the defrosting time period, the frost layers on the surfaces of the fins are melted, the frost layers in the sweeping areas are thinner, the defrosting time is shorter, and the water on the sweeping paths is reduced due to the downward sweeping of the frost water after the accumulation of the convex hulls or the concave pits and grow, so that the defrosting efficiency of the fins is further improved.
In this scheme, along the air inlet direction of the fin, the length of the flat sheet body 100 is less than the projection length of the corrugated sheet body 200 on the plane where the flat sheet body 100 is located, the first bent portion 210 is located on the air inlet side of the second bent portion 220, in the air inlet direction of the fin, the projection length of the first bent portion 210 on the plane where the flat sheet body 100 is located is greater than the projection length of the second bent portion 220 on the plane where the flat sheet body 100 is located, as shown in fig. 3-4, the length of the flat sheet body 100 in the air inlet direction is defined as L1The projection length of the corrugated sheet 200 in the air inlet direction of the plane of the flat sheet 100 is defined as L2The projection length of the first bending portion 210 in the air inlet direction of the plane of the flat sheet 100 is defined as L3The projection length of the second bending portion 220 in the air inlet direction of the plane of the flat sheet 100 is defined as L4In order to ensure the heat exchange capacity of the fins, the corrugated sheet body 200 is used as the main body in the scheme of the application, and L is set1＜L2. First bendThe folding part 210 is located on the windward side of the corrugated sheet body 200, the length of the windward side of the corrugated sheet body 200 is greater than the length of the leeward side, thereby reducing the wind resistance of the corrugated sheet body 200, the convex hull or the pit increase the heat exchange area of the fin, as shown in fig. 5, the inner wall of the air flow fitting pit flows, no local vortex is generated, the heat exchange capacity of the fin is improved, therefore, the heat exchange area can be directly increased by arranging the bulge or the pit on the flat sheet part, and meanwhile, the local vortex at the bulge or the pit of the second bending part 220 can further increase the heat exchange capacity of the fin. In order to ensure that the integral wind resistance of the fin after the increase of the bulges or the pits does not exceed that of the traditional corrugated fin, L is set3＞L4Meanwhile, the number of the protrusions or the recesses of the first bending portion 210 is greater than that of the second bending portion 220, so that the first bending portion 210 on the windward side of the corrugated sheet body 200 increases the heat exchange area to improve the heat exchange capability.
In the present embodiment, any one of the flow guiding structures 300 may be a convex hull or a concave hull, and thus, when the fin is provided with a plurality of flow guiding structures 300, the fin exists 2NA structural form.
As shown in fig. 6, fig. 6 is a schematic diagram showing the comparison between the present scheme fin and the existing fin and the reference fin in terms of efficiency, heat exchange capacity and condensation capacity, respectively, according to an exemplary embodiment.
The reference fin, the four corrugated sheets, the flat sheet structure and the structure A are fins with different shapes respectively, and as can be seen from figure 6, the reference fin structure comprises two corrugations, the heat exchange area can be directly increased by increasing the wave number of the corrugated sheets, when the wave number is increased to 4 corrugations, the capacity of the heat exchanger is improved, but the power consumption of the heat exchanger is increased remarkably, the power consumption of the flat sheet structure is the minimum, but the capability of the flat sheet structure is obviously weaker than that of the reference fin, the corrugated sheet and the flat sheet are combined by the structure A, the capability is slightly weaker than that of the reference fin, the convex hull is locally arranged on the basis of the structure A, the capability is obviously improved compared with the structure A, the power consumption is obviously improved in a range lower than that of the structure which directly increases the ripple number, therefore, the flat sheet body 100, the corrugated sheet body 200 and the structure of locally arranging the convex hulls or the concave pits enable the fin capability to be better than that of the reference fin in the scheme of the application, and the power consumption of the heat exchanger is basically equivalent to that of the reference fin.
The present embodiment further provides a heat exchanger, in which the above-mentioned fin is installed, and as shown in fig. 1-2, the fin is provided with a mounting hole, the mounting hole is connected to the heat exchange tube 500, and the mounting hole extends from the first bent portion 210 to the first plate portion 110.
To sum up, the present scheme provides a fin and a heat exchanger, the fin comprises a flat sheet body 100 and a corrugated sheet body 200 located on the leeward side of the flat sheet body 100, the corrugated sheet body 200 comprises a first bending portion 210 and a second bending portion 220, the flat sheet body 100, the first bending portion 210 and the second bending portion 220 are respectively provided with a flow guiding structure 300, the first bending portion 210 is obliquely arranged relative to the flat sheet body 100, an air flow sequentially flows through the flat sheet body 100, the first bending portion 210 and the second bending portion 220 form a peak bending structure, in the present scheme, the corrugated sheet body 200 avoids the phenomenon that the leeward side of the existing fin is disturbed due to the existence of a plurality of peaks, the flow guiding structure 300 is used for guiding the flow of the air flow and condensed dew, the heat exchange area of the fin is increased, the heat exchange effect of the fin is improved, the flat sheet is located on the windward side of the fin, the windward, the wind resistance is reduced while the heat exchange effect of the fins is ensured.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fin, characterized in that the fin comprises a flat sheet body (100) and a corrugated sheet body (200) located on the leeward side of the flat sheet body (100), the corrugated sheet body (200) comprising a first bent portion (210) and a second bent portion (220);
the flat sheet body (100), the first bending part (210) and the second bending part (220) are respectively provided with a flow guide structure (300), and the flow guide structure (300) is used for guiding airflow and condensed dew to flow.
2. The fin according to claim 1, wherein the flat body (100) is provided with a plurality of rows of said flow directing structures (300) arranged along the length of the fin.
3. The fin according to claim 1, wherein the flat body (100) comprises a first plate portion (110) and a second plate portion (120) on a leeward side of the first plate portion (110), the second plate portion (120) connecting the corrugated body (200);
the first plate part (110) and the second plate part (120) are respectively provided with a plurality of rows of the flow guide structures (300) which are arranged along the length direction of the fins.
4. The fin according to claim 1, wherein the first bent portion (210) is provided with a plurality of rows of the flow guiding structures (300) arranged along a length direction of the fin.
5. The fin according to claim 1, wherein the second bent portion (220) is provided with a plurality of rows of the flow guiding structures (300) arranged along a length direction of the fin.
6. The fin according to any one of claims 2 to 5, wherein the flow guide structures (300) in two adjacent rows are arranged in a staggered manner in the air inlet direction of the fin.
7. The fin according to claim 1, wherein, along an air inlet direction of the fin, a length of the flat sheet body (100) is smaller than a projection length of the corrugated sheet body (200) on a plane on which the flat sheet body (100) is located.
8. The fin according to claim 1, wherein the first bent portion (210) is located on an air inlet side of the second bent portion (220), and a projection length of the first bent portion (210) on a plane where the flat sheet body (100) is located is greater than a projection length of the second bent portion (220) on a plane where the flat sheet body (100) is located in an air inlet direction of the fin.
9. The fin according to claim 1, wherein any of the flow directing structures (300) is a convex hull or a concave hull.
10. A heat exchanger comprising the fin according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022181461.7U CN213272938U (en) | 2020-09-28 | 2020-09-28 | Fin and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022181461.7U CN213272938U (en) | 2020-09-28 | 2020-09-28 | Fin and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213272938U true CN213272938U (en) | 2021-05-25 |
Family
ID=75947077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022181461.7U Active CN213272938U (en) | 2020-09-28 | 2020-09-28 | Fin and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213272938U (en) |
-
2020
- 2020-09-28 CN CN202022181461.7U patent/CN213272938U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009153985A1 (en) | Heat exchanger | |
| CN206073785U (en) | Fin and radiator comprising same | |
| CN110726325A (en) | Fin for tube-fin heat exchanger, tube-fin heat exchanger and air conditioner | |
| CN201449173U (en) | Two-row pipe fin type heat exchanger | |
| CN112097328A (en) | Fin and heat exchanger | |
| CN202092498U (en) | Heat exchanger with streamline integral strengthening heat exchanging plates | |
| CN213272938U (en) | Fin and heat exchanger | |
| CN218723446U (en) | Fin structure and heat exchanger thereof | |
| CN202002518U (en) | Heat exchanger | |
| CN107860248A (en) | Micro-channel heat exchanger and air conditioner | |
| JP2004263881A (en) | Heat transfer fin, heat exchanger, evaporator and condenser for car air conditioner | |
| CN114199068B (en) | Continuous H-shaped finned tube with airflow partition | |
| JP2008116095A (en) | Air heat exchanger | |
| CN217541560U (en) | Heat exchanger | |
| CN110425904A (en) | A kind of plate fin and micro-channel heat exchanger, air-conditioning | |
| CN111912279B (en) | Twisted zigzag louver fin | |
| CN214039043U (en) | Micro-channel heat exchanger and air conditioning system | |
| WO2018041138A1 (en) | Fin and heat exchanger having same | |
| CN211425174U (en) | Fin for tube-fin heat exchanger, tube-fin heat exchanger and air conditioner | |
| CN205784783U (en) | Fin, microchannel parallel flow heat exchanger and air conditioning unit | |
| CN107940818A (en) | A kind of manufacture method of fin, condenser and fin | |
| CN211120813U (en) | Fin and have its heat exchanger and air conditioner | |
| CN210119132U (en) | A fin, heat exchanger and air condensing units for heat exchanger | |
| CN203203301U (en) | Fin type heat exchanger | |
| CN209279762U (en) | Fin and heat exchanger with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |