CN105547042A - Novel fin heat exchanger of louver - Google Patents
Novel fin heat exchanger of louver Download PDFInfo
- Publication number
- CN105547042A CN105547042A CN201511011407.5A CN201511011407A CN105547042A CN 105547042 A CN105547042 A CN 105547042A CN 201511011407 A CN201511011407 A CN 201511011407A CN 105547042 A CN105547042 A CN 105547042A
- Authority
- CN
- China
- Prior art keywords
- fin
- heat exchanger
- shutter
- louver
- shutter wing
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
- F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/08—Fins with openings, e.g. louvers
Abstract
The invention belongs to the field of heat exchangers and provides a novel fin heat exchanger of louver. The fin heat exchanger of the louver comprises oblique base plates, louver fins, transition base plates and multi-hole flattened tubes. The louver fins are installed on the oblique base plates in a grouped mode. Every two adjacent louver fins are connected through the transition base plates, and every two adjacent oblique base plates are installed between the upper multi-hole flattened tube and the lower multi-hole flattened tube in an inverted-V-shaped mode. According to the novel fin heat exchanger, when air enters a fin area along the oblique base plates, the flow direction of air is changed through the louver fins, and meanwhile air is prevented from continuing to form a thermal boundary area layer on the oblique base plates; due to the fact that the louver fins have a flow disturbing function, the thickness of the thermal boundary area layer on the louver fins is greatly decreased, and therefore the effect of reinforcing heat conduction is achieved; in addition, the pressure drop on the air side is greatly reduced through the oblique base plates while turbulent flow is increased, so that the heat exchange effect is improved, and meanwhile the resistance loss on the air side is reduced.
Description
Technical field
The invention belongs to field of heat exchangers, particularly relate to a kind of Novel shutter fin heat exchanger.
Background technology
Fin-type heat exchanger of louver widely uses in air conditioning for automobiles as the new topic of compact heat exchanger.The form of compact heat exchanger has fin-tube type usually, plate-fin and corrugated tube type.The heat exchanger that flat tube and corrugated tube type fin combine, have good augmentation of heat transfer effect, and its thermal resistance is mainly present in air side, and the effective ways thus improving its heat exchange efficiency are the thermal resistances reducing air side.Various high-efficiency fin develops in succession for this reason, and wherein the effect of louvered fin is wherein one of best.
Be generally on the basis of flat substrate in existing fin-type heat exchanger of louver patent, offer the fin that several groups have certain louver angle.Air flows in fin, changes the flow direction of air on the one hand, interrupts the growth of thermal boundary layer on the other hand, thus realizes the object of augmentation of heat transfer.But these patented technologies are in whole air velocity, substrate major part is all the flat substrate vertical with flat tube, and these flat substrate with louvered fin are while augmentation of heat transfer, and its air drag also sharply increases.
Because the requirement of people to environmental quality is more and more higher, and automobile industry is one of ten large power consumption industries, therefore proposes compact, efficient requirement to current heat exchanger for vehicle.Require on the one hand to reduce air-side blockage, increase heat transfer property; On the other hand, meet again and reduce costs, reduce the requirement of volume.Need to develop more efficient heat exchanger for this reason.
Summary of the invention
The object of the present invention is to provide a kind of Novel shutter fin heat exchanger, be intended to solve the problem that existing louvered fin heat exchange efficiency is low, air-side blockage is large.
The present invention is achieved in that a kind of Novel shutter fin heat exchanger, and this fin-type heat exchanger of louver comprises: inclination substrate, shutter wing, transition substrate, porous flat pipe; Described shutter wing grouping is arranged on inclination substrate; Connected by transition substrate between every two groups of shutter wings; Every two groups of inclination substrates are arranged between upper and lower two porous flat pipes in " the positive Eight characters "; Described often group inclination substrate is identical with the angle of porous flat pipe; Described shutter wing and inclination substrate in a certain angle, and the cross section parallelogram of shutter wing; Louvered fin comprises portion and leeward portion windward; The shutter wing in described portion is windward identical with the angle of inclination substrate with the shutter wing in leeward portion with the angle of inclination substrate, and direction of windowing is contrary.
The two ends, side of described shutter wing coordinate with inclination substrate and are fixedly connected with, and are divided into upper and lower two parts by inclination substrate; The part being positioned at the shutter wing of described inclination substrate upper surface is upper part, and the part being positioned at the shutter wing of described inclination substrate lower surface is lower part; Described upper part shutter wing and lower part shutter wing are symmetrical arranged with the center line of the cross section of shutter wing.
The starting position of shutter wing is set and end position place only arranges lower part shutter wing being positioned at described inclination substrate.
In the position being positioned at described transition substrate and arranging shutter wing, upper part shutter wing is only set.
The angle of described shutter wing and inclination substrate is set to 26 ° ~ 30 °.
Often organize described louvered fin to be made up of 5 ~ 8 shutter wings.
The level interval of two adjacent described shutter wings is 1.2 ~ 1.5mm.
The angle of each described inclination substrate and flat tube is 72 ° ~ 77 °.
Compared with prior art, adopt design of the present invention, following technique effect can be reached:
In the present invention when air enters fin region along inclination substrate, shutter wing changes the flow direction of air, interrupted air to be formed in the continuation of the on-chip thermal boundary layer that tilts simultaneously, because shutter wing has flow-disturbing effect, greatly reduce the thickness of thermal boundary layer on shutter wing, to reach the effect of augmentation of heat transfer; And due to the existence of inclination substrate, while increase flow-disturbing, greatly reduce the pressure drop of air side, thus reduce the drag losses of air side while reaching raising heat transfer effect.
Accompanying drawing explanation
Fig. 1 is the structural upright schematic diagram of Novel shutter fin heat exchanger provided by the invention;
Fig. 2 is the left view of Novel shutter fin heat exchanger provided by the invention;
Fig. 3 is the schematic diagram of Novel shutter fin provided by the invention;
Fig. 4 is the structural representation of the single louvered fin of Novel shutter fin provided by the invention;
Fig. 5 is the heat transfer property comparison diagram of Novel shutter fin heat exchanger provided by the invention and common louvered fin heat exchanger;
Fig. 6 be Novel shutter fin heat exchanger provided by the invention and common louvered fin heat exchanger resistance performance comparison diagram;
In figure: 1, inclination substrate; 2, shutter wing; 3, transition substrate; 4, porous flat pipe.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the structural representation of the Novel shutter fin heat exchanger that the embodiment of the present invention provides.For convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.
A kind of Novel shutter fin heat exchanger, this fin-type heat exchanger of louver comprises: inclination substrate 1, shutter wing 2, transition substrate 3, porous flat pipe 4; Described shutter wing grouping is arranged on inclination substrate 1; Connected by transition substrate 3 between every two groups of shutter wings 2; Every two groups of inclination substrates 1 are arranged between upper and lower two porous flat pipes 4 in " the positive Eight characters "; Described often group inclination substrate 1 is identical with the angle of porous flat pipe 4; Described shutter wing 2 is in a certain angle with inclination substrate 1, and the cross section parallelogram of shutter wing 2; Shutter wing 2 comprises portion and leeward portion windward; The shutter wing 2 in described portion is windward identical with the angle of inclination substrate 1 with the shutter wing 2 in leeward portion with the angle of inclination substrate 1, and direction of windowing is contrary.The two ends, side of described shutter wing 2 coordinate with inclination substrate 1 and are fixedly connected with, and are divided into upper and lower two parts by inclination substrate 1; The part being positioned at the shutter wing 2 of described inclination substrate 1 upper surface is upper part, and the part being positioned at the shutter wing 2 of described inclination substrate 1 lower surface is lower part; Described upper part shutter wing 2 is symmetrical arranged with the center line of the cross section of shutter wing 2 with lower part shutter wing 2.The starting position of shutter wing 2 is set and end position place only arranges lower part shutter wing 2 being positioned at described inclination substrate 1.In the position being positioned at described transition substrate 3 and arranging shutter wing 2, upper part shutter wing 2 is only set.The side at the two ends of described shutter wing 2 and inclination substrate 1 form open space, make heat exchange efficiency higher.
As the embodiment of the present invention one preferred version, shutter wing 2 can be set to optimal angle 26o ~ 30o with the angle of inclination substrate 1 as shown in Figure 4.
As the embodiment of the present invention one preferred version, often organize louvered fin and be made up of 5 ~ 8 shutter wings 2.
As the embodiment of the present invention one preferred version, the spacing of two neighboring louver wings 2 can be designed to 1.2 ~ 1.5mm.
As the embodiment of the present invention one preferred version, each described inclination substrate 1 is 72 ° ~ 77 ° with the angle of porous flat pipe 4.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the present invention designs according to field coordination principle, when air enters fin region along inclination substrate 1, shutter wing 2 changes the flow direction of air, and the continuation simultaneously having interrupted the thermal boundary layer of air on inclination substrate 1 is formed, because shutter wing 2 has flow-disturbing effect, greatly reduce the thickness of boundary layer on shutter wing 2, to reach the effect of augmentation of heat transfer, simultaneously due to the existence of inclination substrate, while ensureing heat transfer effect, substantially reduce the pressure drop of air side.
In embodiments of the present invention, fin used, often group has 5 ~ 8 shutter wings 2 to form.The spacing of two neighboring louver wings 2 is set to 1.2 ~ 1.5mm.Commutate between every two groups of shutter wings 2 position inclination substrate 1.Often the length organized between shutter wing 2 is 1.8 ~ 3mm.The height of shutter wing 2 is designed to 0.7 ~ 1.5mm.Shutter wing 2 is designed to 26o ~ 30o with the angle of inclination substrate.
Adopt numerical simulation technology, respectively the calculating of heat transfer and resistance carried out to the present embodiment and plain fin heat exchanger, drawn the following conclusions:
Fig. 5 is the heat transfer property comparison diagram of the present embodiment and common louvered fin heat exchanger, and as seen from the figure, under different wind speed, relative to common louvered fin heat exchanger, the heat transfer property of the present embodiment improves 10% ~ 30%.
Fig. 6 is the resistance performance comparison diagram of the present embodiment and common louvered fin heat exchanger, is drawn by figure, and under different wind speed, relative to common louvered fin heat exchanger, the resistance of the present embodiment reduces 11.1% ~ 42.3%.
Known by above-mentioned analysis, relative to existing common louvered fin heat exchanger, this fin-type heat exchanger of louver, while guarantee improves heat transfer efficiency, greatly reduces the drag losses of air side, more energy-conservation, therefore can reduce costs.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a Novel shutter fin heat exchanger, is characterized in that, this fin-type heat exchanger of louver comprises: inclination substrate, shutter wing, transition substrate, porous flat pipe; Described shutter wing grouping is arranged on inclination substrate; Connected by transition substrate between every two groups of shutter wings; Every two groups of inclination substrates are arranged between upper and lower two porous flat pipes in " the positive Eight characters "; Described often group inclination substrate is identical with the angle of porous flat pipe; Described shutter wing and inclination substrate in a certain angle, and the cross section parallelogram of shutter wing; Louvered fin comprises portion and leeward portion windward; The shutter wing in described portion is windward identical with the angle of inclination substrate with the shutter wing in leeward portion with the angle of inclination substrate, and direction of windowing is contrary.
2. fin-type heat exchanger of louver as claimed in claim 1, is characterized in that: the two ends, side of described shutter wing coordinate with inclination substrate and are fixedly connected with, and are divided into upper and lower two parts by inclination substrate; The part being positioned at the shutter wing of described inclination substrate upper surface is upper part, and the part being positioned at the shutter wing of described inclination substrate lower surface is lower part; Described upper part shutter wing and lower part shutter wing are symmetrical arranged with the center line of the cross section of shutter wing.
3. fin-type heat exchanger of louver as claimed in claim 1, is characterized in that: arrange the starting position of shutter wing and end position place only arranges lower part shutter wing being positioned at described inclination substrate.
4. fin-type heat exchanger of louver as claimed in claim 2, is characterized in that: only arrange upper part shutter wing in the position being positioned at described transition substrate and arranging shutter wing.
5. fin-type heat exchanger of louver as claimed in claim 1, is characterized in that: the angle of described shutter wing and inclination substrate can be set to optimal angle 26o ~ 30o.
6. fin-type heat exchanger of louver as claimed in claim 1, is characterized in that: often organizing described louvered fin has 5 ~ 7 described shutter wing compositions.
7. fin-type heat exchanger of louver as claimed in claim 1, is characterized in that: the level interval of two adjacent described shutter wings is for being 1.2 ~ 1.5mm.
8. fin-type heat exchanger of louver as claimed in claim 1, is characterized in that: the angle of each described inclination substrate and porous flat pipe is 72 ° ~ 77 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011407.5A CN105547042A (en) | 2015-12-30 | 2015-12-30 | Novel fin heat exchanger of louver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011407.5A CN105547042A (en) | 2015-12-30 | 2015-12-30 | Novel fin heat exchanger of louver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105547042A true CN105547042A (en) | 2016-05-04 |
Family
ID=55826411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511011407.5A Pending CN105547042A (en) | 2015-12-30 | 2015-12-30 | Novel fin heat exchanger of louver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105547042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762105A (en) * | 2016-12-22 | 2017-05-31 | 西北工业大学 | A kind of combined type cooling structure for automobile engine intercooler |
| CN113465437A (en) * | 2021-06-24 | 2021-10-01 | 中原工学院 | Louver fin heat exchanger and performance evaluation factor determination method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09264697A (en) * | 1996-03-28 | 1997-10-07 | Matsushita Electric Works Ltd | Heat exchanger |
| CN101846475A (en) * | 2009-03-25 | 2010-09-29 | 三花丹佛斯（杭州）微通道换热器有限公司 | Fin for heat exchanger and heat exchanger with same |
| CN201876180U (en) * | 2010-06-07 | 2011-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Fins and micro-channel heat exchanger comprising same |
| CN102519293A (en) * | 2011-09-26 | 2012-06-27 | 郑州大学 | Novel shutter fin |
| CN104807360A (en) * | 2014-01-26 | 2015-07-29 | 杭州三花研究院有限公司 | Fin, micro-passage heat exchanger with fin and application of micro-passage heat exchanger |
| CN205279842U (en) * | 2015-12-30 | 2016-06-01 | 郑州大学 | Novel shutter finned heat exchanger |
-
2015
- 2015-12-30 CN CN201511011407.5A patent/CN105547042A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09264697A (en) * | 1996-03-28 | 1997-10-07 | Matsushita Electric Works Ltd | Heat exchanger |
| CN101846475A (en) * | 2009-03-25 | 2010-09-29 | 三花丹佛斯（杭州）微通道换热器有限公司 | Fin for heat exchanger and heat exchanger with same |
| CN201876180U (en) * | 2010-06-07 | 2011-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Fins and micro-channel heat exchanger comprising same |
| CN102519293A (en) * | 2011-09-26 | 2012-06-27 | 郑州大学 | Novel shutter fin |
| CN104807360A (en) * | 2014-01-26 | 2015-07-29 | 杭州三花研究院有限公司 | Fin, micro-passage heat exchanger with fin and application of micro-passage heat exchanger |
| CN205279842U (en) * | 2015-12-30 | 2016-06-01 | 郑州大学 | Novel shutter finned heat exchanger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762105A (en) * | 2016-12-22 | 2017-05-31 | 西北工业大学 | A kind of combined type cooling structure for automobile engine intercooler |
| CN106762105B (en) * | 2016-12-22 | 2020-04-03 | 西北工业大学 | Combined cooling structure for intercooler of automobile engine |
| CN113465437A (en) * | 2021-06-24 | 2021-10-01 | 中原工学院 | Louver fin heat exchanger and performance evaluation factor determination method thereof |
| CN113465437B (en) * | 2021-06-24 | 2023-01-24 | 中原工学院 | Louver fin heat exchanger and performance evaluation factor determination method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |