CN207113689U - Fin and heat exchanger - Google Patents
Fin and heat exchanger Download PDFInfo
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- CN207113689U CN207113689U CN201721146878.1U CN201721146878U CN207113689U CN 207113689 U CN207113689 U CN 207113689U CN 201721146878 U CN201721146878 U CN 201721146878U CN 207113689 U CN207113689 U CN 207113689U
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Abstract
It the utility model is related to fin-tube heat exchanger field, disclose a kind of fin and heat exchanger, the fin includes body (10), the through hole (11) for being set with base tube (20) is offered on the body (10), the surface of the body (10) is provided with ripple struction, airflow direction of the crest (12) and trough (13) of the ripple struction along the fin is alternately present, and the ripple struction avoids the through hole (11) and limited along the airflow direction to extend and by the air channel (14) of the through hole (11).In use, the ripple struction set on fin can interrupt the boundary layer of air-flow to fin of the present utility model on the airflow direction of fin, improve the coefficient of heat transfer of fin；In addition, the air channel by through hole set on fin can not only guide mass air flow by base tube to strengthen the heat exchange efficiency of base tube, and fin crushing of air side in heat transfer process is enabled to substantially reduce, so as to effectively lift the heat exchange property of heat exchanger.
Description
Technical field
Fin-tube heat exchanger field is the utility model is related to, the heat exchange more particularly to a kind of fin and containing the fin
Device.
Background technology
Fin-tube heat exchanger is gas and the most widely used a kind of heat transmission equipment in liquid heat exchanger, is air-conditioning
With most common heat exchanger in refrigerator.Its by common base tube (such as pipe, elliptical tube or flat tube) install additional fin come
Reach the purpose of augmentation of heat transfer.And in fin-tube heat exchanger, because the thermal resistance accounting of fin air side is maximum, air side
The coefficient of heat transfer is relatively low, seriously constrains the performance boost of fin-tube heat exchanger.
In order to lift the heat exchange property of fin-tube heat exchanger, in the prior art by using corrugated fin and slitted fin
(shutter, bridge piece etc. are set on fin) lifts the coefficient of heat transfer of fin air side.But above two fin is using
During following defect also be present：For corrugated fin, although the coefficient of heat transfer of its air side has been lifted compared with plain film,
The crushing of air side is higher in heat transfer process, the performance boost DeGrain of heat exchanging device；For slitted fin, its air
It is substantially improved although the coefficient of heat transfer of side has, the problem of frosting is present under worst cold case, fin heat-exchange performance can be caused
Energy declines to a great extent.
Therefore, it is necessary to a kind of crushing that can reduce fin air side is proposed, the higher fin of heat exchange property.
Utility model content
The purpose of this utility model is to provide a kind of fin and the heat exchanger containing the fin regarding to the issue above, the wing
Piece can effectively reduce the crushing of air side in heat transfer process, improve the heat exchange property of fin.
To achieve these goals, the utility model provides a kind of fin, and the fin includes body, opened up on the body
There is the through hole for being set with base tube, the surface of the body is provided with ripple struction, the crest of the ripple struction and trough edge
The airflow direction of the fin is alternately present, the ripple struction avoid the through hole and limit along the airflow direction extension and
By the air channel of the through hole.
Preferably, the center line along the airflow direction that the air channel is set to off in the through hole is symmetrical.
Preferably, the air channel includes bottom wall and respectively from the two side that the bottom wall extends obliquely, wherein：
The width e of the bottom wall is 2~5mm, and/or
Angle α between the side wall and the bottom wall is 120~160 °.
Preferably, the bottom wall is formed as planomural or bellows wall.
Preferably, the ripple angle of inclination beta of the ripple struction is 60~160 °, and/or the ripple struction wave number for 1~
5。
Preferably, multiple through holes, and length side of multiple through holes along the body are offered on the body
To being spaced.
Preferably, the spacing a between the center line of the adjacent through hole is 12~25mm.
Preferably, the through hole is formed as circular, and the aperture of the through hole is 5~9mm；And/or
The body is formed as square, and the width or side length b of the body are 8~22mm.
The utility model also provides a kind of heat exchanger, and the heat exchanger includes base tube and the fin being set on the base tube, institute
It is above-described fin to state fin.
Preferably, the heat exchanger includes multiple fins and base tube, wherein：
Bearing of trend of multiple fins along the base tube is intervally arranged in parallel to each other, and/or
Multiple fins are arranged side by side along the airflow direction, be arranged with each fin be arranged in rows it is described
Base tube, it is interlaced arrangement or alignment respectively to arrange the base tube along the airflow direction.
Preferably, the spacing d between the fin arranged along the bearing of trend of the base tube is 0.8~2.5mm.
Preferably, the wave height h of the ripple struction is 0.4~1.2 times of d.
Pass through above-mentioned technical proposal, fin of the present utility model in use, the ripple struction energy set on fin
Enough boundary layers that air-flow is interrupted on the airflow direction of fin, improve the coefficient of heat transfer of fin；In addition, the process set on fin
The air channel of through hole can not only guide mass air flow by base tube to strengthen the heat exchange efficiency of base tube, and enable to fin to exist
The crushing of air side substantially reduces in heat transfer process, so as to effectively lift the heat exchange property of heat exchanger.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following
Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is a kind of stereogram of embodiment of heat exchanger in the utility model, wherein only showing fin and base tube；
Fig. 2 is the stereogram of the another embodiment of heat exchanger in the utility model, wherein fin and base tube are only shown,
And two fins are arranged side by side；
Fig. 3 is Fig. 2 top view；
Fig. 4 is Fig. 2 front view；
Fig. 5 is Fig. 4 sectional view.
Description of reference numerals
The through hole of 10 body 11
The trough of 12 crest 13
The bottom wall of 14 air channel 141
The base tube of 142 side wall 20
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
It should be noted that the airflow direction of the fin described in the utility model refers to that fluid (such as air) flows into fin
When direction, referring specifically to the signified direction of arrow in accompanying drawing.
The utility model provides a kind of fin, and the fin includes body 10, is offered on the body 10 for being set with base
The through hole 11 of pipe 20, the surface of the body 10 are provided with ripple struction, and the crest 12 and trough 13 of the ripple struction are along institute
The airflow direction for stating fin is alternately present, the ripple struction avoid the through hole 11 and limit along the airflow direction extension and
By the air channel 14 of the through hole 11.
In use, the ripple struction set on the body 10 can be in the gas of fin for fin of the present utility model
The boundary layer of air-flow is interrupted on stream direction, so as to improve the coefficient of heat transfer of fin；In addition, what is set on the fin passes through through hole
11 air channel 14 can not only guide mass air flow by base tube 20 to strengthen its heat exchange efficiency, and enable to fin air
The crushing of side substantially reduces, so as to effectively lift the heat exchange property of heat exchanger.
According to a kind of preferred embodiment of the present utility model, as shown in figure 1, the air channel 14 is set to off in described logical
The center line along the airflow direction in hole 11 is symmetrical.It can so increase and flow through the air-flow in the air channel 14 and connecing for base tube 20
Contacting surface is accumulated, so as to further improve the heat exchange property of heat exchanger.
Wherein, as shown in figure 5, the air channel 14 can include bottom wall 141 and respectively extend obliquely from the bottom wall 141
Two side 142.Wherein, the bottom wall 141 can be formed by a part for the body 10, and the side wall 142 can be by described
The wall for being used to limit the air channel 14 in ripple struction is formed.It is of course also possible to by extraly being set on the body 10
Serve as the structure of the bottom wall 141 and side wall 142.
Preferably, the width e of the bottom wall 141 is 2~5mm；Folder between the side wall 142 and the bottom wall 141
Angle α is 120~160 °.
In addition, the bottom wall 141 can be formed as planomural (i.e. upper surface is formed as plane), bellows wall can also be formed as
(i.e. upper surface is formed as corrugated).It should be noted that when the bottom wall 141 is formed as bellows wall, its ripple medium wave peak
Height should be less than the height of the side wall 142.
In order to further strengthen the heat exchange property of fin of the present utility model, the utility model is also to the ripple struction
Design parameter has been carried out preferably, and as shown in Figure 4 and Figure 5, the ripple angle of inclination beta of the ripple struction is preferably 60~160 °, described
The wave number of ripple struction is preferably 1~5.
In actual use, more foundation pipes 20 can be typically arranged on a fin simultaneously.According to the utility model
A kind of preferred embodiment, offer multiple through holes 11 on the body 10, and multiple through holes 11 are along described
The length direction of body 10 is spaced.
Wherein, preferably, as shown in figure 3, the spacing a between the center line of the adjacent through hole 11 is 12~25mm.
In the utility model, base tube 20 can be pipe, elliptical tube or flat tube.According to of the present utility model a kind of preferred
Embodiment, base tube 20 are pipe, and the through hole 11 is formed as circular, and the external diameter (aperture of i.e. described through hole 11) of the pipe is excellent
Elect 5~9mm as.
In the utility model, body 10 can have arbitrary shape.According to one kind of body in the utility model 10 preferably
Embodiment, as shown in figure 3, the body 10 can be formed as square, for example (,) rectangle or square, the width of the body 10
Degree or side length b are preferably 8~22mm, i.e., and when described body 10 is formed as rectangle, the width of the body 10 is preferably 8~
22mm；When the body 10 is formed as square, the length of side of the body 10 is preferably 8~22mm.
The utility model also provides a kind of heat exchanger, and the heat exchanger includes base tube 20 and the wing being set on the base tube 20
Piece, the fin are above-described fin.
In the utility model, the heat exchanger can include multiple fins and base tube 20.
Wherein, the multiple fins and base tube 20 can have a variety of arrangement modes.In order to realize with the space-consuming of minimum
Reach best heat transfer effect, the utility model provides three kinds of preferred arrangement modes of the fin and base tube 20：The first row
Mode for cloth is bearing of trend of multiple fins along the base tube 20 is intervally arranged in parallel to each other；Second of arrangement mode
It is multiple fins is arranged side by side along the airflow direction, the base tube being arranged in rows is arranged with each fin
20, it is interlaced arrangement or alignment respectively to arrange the base tube 20 along the airflow direction；The third arrangement mode is the first row
The combination of mode for cloth and second of arrangement mode, i.e., the multiple fin is grouped, multiple fins in every group are described in
Airflow direction is arranged side by side, and is arranged with the base tube 20 being arranged in rows on each fin, respectively arranges the base tube 20 along institute
It is interlaced arrangement or alignment to state airflow direction；It is mutual along the bearing of trend of the base tube 20 between the fin of difference group
Abreast it is intervally arranged.
Wherein, preferably, as shown in Fig. 2 along between the fin of the bearing of trend arrangement of the base tube 20
It is 0.8~2.5mm away from d.
In addition, in order to further reduce the crushing of the fin air side, preferably, the wave height h of the ripple struction
For 0.4~1.2 times of d.
Heat exchanger of the present utility model is by using such scheme, in use, the fin and existing ripple
Fin is compared, and the crushing of its air side can reduce by more than 5%.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
The possible combination of kind no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (12)
1. a kind of fin, the fin includes body (10), and the through hole for being set with base tube (20) is offered on the body (10)
(11), the surface of the body (10) is provided with ripple struction, and the crest (12) and trough (13) of the ripple struction are along described
The airflow direction of fin is alternately present, it is characterised in that the ripple struction is avoided the through hole (11) and limited along the gas
Flow direction extension and by the air channel (14) of the through hole (11).
2. fin according to claim 1, it is characterised in that the air channel (14) is set to off in the through hole (11)
It is symmetrical along the center line of the airflow direction.
3. fin according to claim 1 or 2, it is characterised in that the air channel (14) include bottom wall (141) and respectively from
The two side (142) that the bottom wall (141) extends obliquely, wherein：
The width e of the bottom wall (141) is 2~5mm, and/or
Angle α between the side wall (142) and the bottom wall (141) is 120~160 °.
4. fin according to claim 3, it is characterised in that the bottom wall (141) is formed as planomural or bellows wall.
5. fin according to claim 1, it is characterised in that the ripple angle of inclination beta of the ripple struction is 60~160 °,
And/or the wave number of the ripple struction is 1~5.
6. fin according to claim 1, it is characterised in that offer multiple through holes on the body (10)
(11), and length direction of the multiple through holes (11) along the body (10) is spaced.
7. fin according to claim 6, it is characterised in that the spacing a between the center line of the adjacent through hole (11)
For 12~25mm.
8. fin according to claim 1, it is characterised in that the through hole (11) is formed as circular, the through hole (11)
Aperture be 5~9mm；And/or
The body (10) is formed as square, and the width or side length b of the body (10) are 8~22mm.
9. a kind of heat exchanger, the heat exchanger includes base tube (20) and the fin being set on the base tube (20), it is characterised in that institute
Fin is stated as the fin described in any one in claim 1-8.
10. heat exchanger according to claim 9, it is characterised in that the heat exchanger includes multiple fins and base tube
(20), wherein：
Bearing of trend of multiple fins along the base tube (20) is intervally arranged in parallel to each other, and/or
Multiple fins are arranged side by side along the airflow direction, and the base tube being arranged in rows is arranged with each fin
(20) it is interlaced arrangement or alignment, respectively to arrange the base tube (20) along the airflow direction.
11. heat exchanger according to claim 10, it is characterised in that the institute to be arranged along the bearing of trend of the base tube (20)
It is 0.8~2.5mm to state the spacing d between fin.
12. heat exchanger according to claim 11, it is characterised in that the wave height h of the ripple struction is the 0.4~1.2 of d
Times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721146878.1U CN207113689U (en) | 2017-09-08 | 2017-09-08 | Fin and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721146878.1U CN207113689U (en) | 2017-09-08 | 2017-09-08 | Fin and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207113689U true CN207113689U (en) | 2018-03-16 |
Family
ID=61574036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721146878.1U Active CN207113689U (en) | 2017-09-08 | 2017-09-08 | Fin and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207113689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047658A1 (en) * | 2017-09-08 | 2019-03-14 | 美的集团股份有限公司 | Cooling fin and heat exchanger |
-
2017
- 2017-09-08 CN CN201721146878.1U patent/CN207113689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047658A1 (en) * | 2017-09-08 | 2019-03-14 | 美的集团股份有限公司 | Cooling fin and heat exchanger |
| CN109470077A (en) * | 2017-09-08 | 2019-03-15 | 美的集团股份有限公司 | Fin and heat exchanger |
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