CN103339455A - Heat exchanger fin, roll forming die assembly for forming same, and method of forming - Google Patents
Heat exchanger fin, roll forming die assembly for forming same, and method of forming Download PDFInfo
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- CN103339455A CN103339455A CN2011800556089A CN201180055608A CN103339455A CN 103339455 A CN103339455 A CN 103339455A CN 2011800556089 A CN2011800556089 A CN 2011800556089A CN 201180055608 A CN201180055608 A CN 201180055608A CN 103339455 A CN103339455 A CN 103339455A
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- Prior art keywords
- fin unit
- sheet stock
- heat exchanger
- fin
- forming
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A serpentine fin system includes a roll forming die and a sheet stock. The roll forming die includes a first and second die. The roll forming die is configured to form an undulating surface on to the sheet stock. The surface is folded in a serpentine pattern to form a plurality of passages to convey fluid through the fin unit.
Description
The cross reference of related application
The application requires to enjoy the U.S. Provisional Application No.61/407 that submitted on October 28th, 2010,676 priority, and the open mode of quoting in full of this U.S. Provisional Application is incorporated herein.
Technical field
Briefly, the present invention relates to a kind of heat exchanger fin and forming method.More specifically, the present invention relates to a kind of cellular heat exchanger fin and a kind of be used to the method that makes this cellular heat exchanger fin rolling and forming.
Background technology
Heat exchanger is common general knowledge, and is widely used in the industry-by-industry.The example of well-known heat exchanger comprises car radiator, is used for the condenser of refrigeration unit, is used for the cooler at power generation process removal used heat, etc.
In order to improve the efficient of these heat exchangers, can comprise that the radiant type heat radiating fin structure is to increase surface area.Usually, these fin are suitable for using solder brazing and other manufacturing process to be cut individually and assemble.Fin can play the important function that makes pipe strengthen resisting operation pressure.This is especially true for flat tube or oval pipe.Fin must be enough firm in to prevent distortion or other infringements.Unfortunately, guarantee that the required fin thickness of this robustness is unfavorable to the cost of heat exchanger.In addition, these fin are normally parallel, do not have contact point between the adjacent fin.Therefore, only the thickness of fin has prevented because the flexing of these fin that mechanical constraint causes.
Therefore, be desirable to provide the method and apparatus that overcomes shortcoming described herein on a kind of some degree at least.
Summary of the invention
The present invention satisfies aforementioned requirement to a great extent, wherein, provides a kind of serpentine fins system, a kind of fin unit and a kind of method for the manufacture of this fin unit in many aspects.
One embodiment of the present of invention relate to a kind of serpentine fins system.Described system comprises rolling and forming mould and sheet stock.Described rolling and forming mould comprises first mould and second mould.Described rolling and forming mould is configured to form running surface at described sheet stock.Described surface is folded into serpentine pattern to be formed for transmitting fluid by a plurality of paths of fin unit.
Another embodiment of the present invention relates to a kind of fin unit for heat exchanger.Described fin unit comprises the sheet stock with running surface.Described surface is folded into serpentine pattern to be formed for transmitting fluid by a plurality of paths of described fin unit.
Another embodiment of the present invention relates to a kind of heat exchanger.Described heat exchanger comprises fin unit, and described fin unit comprises the sheet stock with running surface.Described surface is folded into serpentine pattern to be formed for transmitting fluid by a plurality of paths of described fin unit.
Another embodiment of the present invention relates to a kind of method of making fin unit.Described method comprises the step with sheet stock rolling and forming and folding sheet stock.Described sheet stock by rolling and forming for to produce running surface at described sheet stock.Described sheet stock is folded into serpentine pattern to be formed for transmitting fluid by a plurality of paths of described fin unit.
Therefore, summarize some embodiment of the application quite widely, in order to can understand detailed description better herein, and in order to can understand the contribution that the application makes prior art better.Certainly, other embodiment of the application will be described and will constitute the theme of claims below.
In this respect, before in detail explaining at least one embodiment of the application, should be understood that, the present invention its use be not limited to the details of structure and be described below propose or the layout of exemplified parts in the accompanying drawings.Except these embodiment that is described, the present invention can be implemented and realize in every way.Equally, should be understood that wording used herein and term and summary should not be considered to restrictive all for the purpose of statement.
Similarly, it will be appreciated by those skilled in the art that the disclosure based on conception can easily be used as the basis of design other structures, method and system, be used for realizing a plurality of purposes of the present invention.Therefore, importantly, claim should be considered to the structure that comprises that these are of equal value, as long as these structures of equal value do not break away from disclosure of the present invention and scope.
Description of drawings
Fig. 1 is the perspective view of serpentine fins according to an embodiment of the invention system.
Fig. 2 is the side view of the serpentine fins system of Fig. 1.
Fig. 3 is the exploded view that is suitable for the heat-exchange apparatus that the fin unit with Fig. 1 uses.
Fig. 4 is the vertical view according to the heat-exchange apparatus of Fig. 3, does not have described exploded part.
Fig. 5 is the detailed view according to the heat-exchange apparatus of Fig. 4.
Fig. 6 is the decomposition view of another heat-exchange apparatus similar to heat-exchange apparatus shown in Figure 3.
Fig. 7 is the detailed view according to the heat-exchange apparatus of Fig. 6.
Fig. 8 is the side view of serpentine fins system.
Fig. 9 is the side view according to the serpentine fins system of another embodiment.
The specific embodiment
The invention provides a kind of for the manufacture of the system and method that is suitable for use in the serpentine fins unit in the heat exchanger.For the purpose of the disclosure, term " snakelike " means fluctuation, wavy, the accordion shape, fan-folded, their modification, etc.In an example of preferred embodiment, fin unit can be made by the single-piece sheet stock, this with traditional fin unit in to be stacked in tens of or hundreds of individual independent thin plate over each other completely different.The beyond thought benefit of the embodiment of the invention is: can save time and money, and fin unit is more efficient than traditional fin unit.For example, because fin unit can be by from one piece and with the uniform way manufacturing, so the sheet stock that the comparable tradition of sheet stock is used is thinner.This thinner material has been saved material cost.In addition, thinner material allows more fluid to flow through fin unit.
As shown in Figure 1, serpentine fins system 10 comprises the rolling and forming mould 12 with first mould 14 and second mould 16, and this rolling and forming mould 12 is configured to make sheet stock 18 moulding.The moulding sheet stock 20 that produces comprises a series of impressions (indentation) 22.The order of impression 22 is configured to be beneficial to moulding sheet stock 20 is squeezed into the fin unit 24 that is suitable as heat-exchanging part.In this respect, press 26 is configured to admit or pull into moulding sheet stock 20 and makes the moulding sheet stock that advances 20 slack-off or stop, and is squeezed into formation closely with snakelike.In one embodiment, moulding sheet stock 20 comprises because by mould 12 and by the fan-shaped gauffer of moulding or rivel (pleat).As shown in Figure 1, these fan-shaped gauffers on the side that replaces of sheet stock 18 by moulding.This a series of fan fold is disposed these moulding sheet stocks in advance, to be folded into fin unit 24.Press 26 is finished and is made moulding sheet stock 20 crooked in peak portion and paddy portion place, to produce serpentine fins unit 24.Just as described in this article, fin unit 24 can be snakelike, and comprises and be configured to transmit the cellular passage that fluid passes through.
Fig. 2 is the side view of the serpentine fins system 10 of Fig. 1.The serpentine fins system 10 of Fig. 1 is similar to the serpentine fins system 10 of Fig. 1, therefore, for the sake of brevity, will no longer be described with reference to described these projects of Fig. 1.As shown in Figure 2, moulding sheet stock 20 comprises a series of pleat trace (crease) 30 and panel (panel) 32, and described panel 32 is beneficial to the formation rivel.By regulating the distance between the pleat trace 30, can regulate the thickness of fin unit 24.For example, by increasing the distance between the corresponding pleat trace 30, can increase the thickness of fin unit 24.On the contrary, for example, by reducing the distance between each pleat trace 30, can reduce the thickness of fin unit 24.By this way, the thickness of fin unit 24 can be adjusted to and be suitable for special heat exchange task.
Fig. 3 is the exploded view that is suitable for the heat-exchange apparatus 40 that the fin unit 24 with Fig. 1 uses.As shown in Figure 3, heat-exchange apparatus 40 has the heat exchange of cross-current dynamic formula (crossflow-type).That is, first fluid is transmitted through heat-exchange apparatus 40 at first direction, and second fluid vertically or into about 90 ° of ground is transmitted with respect to first fluid.Yet, it should be noted that each embodiment of the present invention is suitable for using with the heat-exchange apparatus of any kind.In specific embodiment shown in Figure 3, heat-exchange apparatus 40 comprises a plurality of fin units 24 that are inserted with a plurality of conduits 42.
In other examples, heat-exchange apparatus 40 can comprise the heat exchange of reverse flow dynamic formula.In such equipment, first fluid is ordered about at first direction to flow, and 180 ° the direction of flowing into that second fluid is ordered about with first fluid flows.
Be noted that though heat-exchange apparatus 40 comprises fin unit 24 and conduit 42 simultaneously, this heat-exchange apparatus 40 does not need to comprise simultaneously fin unit 24 and conduit 42, but can save conduit 42.If be configured by this way, first fluid can be ordered about in first fin unit 24 to flow, and second fluid can be ordered about in second fin unit 24 mobile.By changing first fin unit 24 with respect to the orientation of second fin unit 24, can cause occurring cross flow one or reverse flow.
Fig. 4 is the vertical view according to the heat-exchange apparatus 40 of Fig. 3.As shown in Figure 4, each conduit 42 can be sandwiched between a pair of fin unit 24.Yet in other examples, conduit 42 and fin unit 24 can alternately occur.In Fig. 4, each conduit 42 is placed in the side of two corresponding fin units 24 or is clipped in the middle of it.Yet in other examples, each conduit 42 does not need to be placed in the side of two corresponding fin units 24 or to be clipped in the middle of it, but a conduit 42 can be adjacent to arrange with one or more fin units 24.
In other other examples, conduit 42 can be removed, and fin 24 can be configured to transmit first fluid and second fluid.For example, first fin unit 24 can be configured to transmit first fluid, and second fin unit 24 can be configured to transmit second fluid.
Fig. 5 is the detailed view according to the heat-exchange apparatus 40 of Fig. 4.As shown in Figure 5, fin unit 24 is configured to be provided for a plurality of paths 50 that fluid flows.In certain embodiments, path 50 can be sealed to improve heat transmission each other, increases the hardness of fin unit 24, increases the intensity of fin unit 24, etc.For seal path 50, the adjacent wall portion of path 50 can be stuck along contact-making surface 52.These contact-making surfaces 52 (for example, solder brazing, solder, welding, gummed etc.) in any suitable manner are stuck.
As shown in Figure 5, path 50 is circular substantially.This rounding of path 50 can be used to reduce the hydraulic diameter with respect to (faceted) path that facet is arranged.Just as is generally known, hydraulic diameter (D
H) normally used term when being the flow in calculating non-circular pipe and passage.Use equation D
H=4A/P (wherein, A is cross-sectional area, and P is that wetted perimeter is long), can to will be for the similar mode calculated flow rate of round tube, turbulent flow, shear stress etc.By reducing hydraulic diameter, hot transmission can be enhanced owing to higher heat transfer coefficient and extra heat exchange surface, thereby improves the efficient of heat-exchange apparatus 40.
Though it should be noted that path shown in Figure 5 50 normally circular or round as a ball, in other examples, path 50 needs not be circle, and can be polygonal, square, leg-of-mutton, etc.In addition, shape need not keep identical along the length of path 50, and can twist along length, bifurcated (ungulate) or change in other respects.In these or other mode, path can be optimised at concrete application.For example, in some applications, it may be favourable introducing turbulent flow.In order to introduce this turbulent flow, dimpling or other this impressions can be set up along the surface of path 50.
Fig. 6 is the decomposition view of another heat-exchange apparatus 40 similar to heat-exchange apparatus shown in Figure 3 40.As shown in Figure 6, fin unit 24 is arranged between a plurality of panels 60.Panel 60 comprises mating surface 62.When being assembled and mating surface 62 when being sealed each other, panel 60 forms conduits 42.
In a plurality of examples, mating surface 62 can be sealed in any suitable manner.The concrete example of the encapsulating method that is fit to comprises solder, solder brazing, welding, gummed, crimping etc.In addition, mating surface 62 can be for example by clip sealing releasedly each other.
Selectively, liner can be arranged between the mating surface 62 and be beneficial to fluid-tight seal.Though not shown among Fig. 6, known to usually is that liner can be placed between the sealing surfaces.In addition, if comprise, liner can be arranged on and be configured to keep in the passage of this liner.
Fig. 7 is the detailed view according to the heat-exchange apparatus 40 of Fig. 6.As shown in Figure 7, being arranged on a plurality of paths 50 in the fin unit 24 is hexagonal shapes substantially.This and circular path 50 substantially shown in Figure 5 form contrast.Yet path 50 needs not be hexagon or circular, and can comprise any suitable shape or a plurality of shape.In any case the advantage of these embodiment is: the wall thickness that reduces has reduced the cost of heat exchanger.
As shown in Figure 7, fin unit 24 comprises a plurality of attachment points 70, and each foldable layer of fin unit 24 comprises a pleat trace 30.The advantage of some embodiments of the present invention is: pleat trace 30 has reduced the quantity of attachment point 70.Therefore that is, in traditional fin unit, every layer is independent part, does not comprise pleat trace (such as, pleat trace 30).Shown in concrete example in, the quantity of attachment point reduces to 4 from 5, that is, the quantity of attachment point 70 reduces 20%.This minimizing of attachment point can be so that welding or the corresponding minimizing of number of times of other this operations, and/or corresponding raising such as intensity, durability.
Fig. 8 is the side view of serpentine fins system 10.The serpentine fins system 10 of Fig. 8 is similar to the serpentine fins system 10 of Fig. 2, therefore for the sake of brevity, will no longer be described with reference to described these projects of Fig. 2.As shown in Figure 8, first mould 14 and second mould 16 are configured to make sheet stock 18 to be shaped to moulding sheet stock 20, compare with the relative impression 22 of side shown in Figure 2, and these moulding sheet stocks 20 have the relatively impression 22 of circle.
Fig. 9 is the side view according to the serpentine fins system 10 of another embodiment.The serpentine fins system 10 of Fig. 9 is similar to the serpentine fins system 10 of Fig. 1 to Fig. 8, therefore for the sake of brevity, more than in this article described those elements will no longer be described.As shown in Figure 9, profile 90 and outer mold surface 92 in mould 14 comprises one group.Interior profile 90 comprises the surface of the subclass that is configured to form the path 50 in the interior section that is arranged on fin unit 24.Outer mold surface 92 comprises the surface of the subclass of the path 50 that is configured to form on the exterior section that is arranged on fin unit 24.In the example shown, interior profile 90 is littler relatively than outer mold surface 92 because " outside " path 50 by make moulding sheet stock 20 backward crooked on himself by moulding.In case moulding, the subclass that is arranged on this path 50 on the exterior section of fin unit 24 can be squeezed in the mode of accordion shape folding, thereby forms serpentine fins unit 24.
Many features of the present invention and advantage can find out from detailed specification obviously that all features of the present invention and the advantage that therefore belong to practicalness of the present invention and scope all should be comprised in the appended claims.Further, because those skilled in the art are easy to carry out various modifications and variations, therefore example and described precise structure and operation are not used in restriction the present invention shown in the present invention, and correspondingly, all suitable modification and equivalents all should belong to scope of the present invention.
Claims (20)
1. serpentine fins formation system, described system comprises:
The rolling and forming mould, described rolling and forming mould comprises:
First mould; With
Second mould; And
Sheet stock, described rolling and forming mould is configured to form running surface at described sheet stock, and described surface is folded into serpentine pattern to be formed for transmitting fluid by a plurality of paths of fin unit.
2. serpentine fins formation system according to claim 1, wherein, described rolling and forming mould is configured to form a series of fan folds that replace.
3. serpentine fins formation system according to claim 1, wherein, described rolling and forming mould is configured to form circular path.
4. serpentine fins formation system according to claim 1, wherein, described rolling and forming mould is configured to form the hexagon path.
5. serpentine fins formation system according to claim 1, wherein, described sheet stock is selected from the group of being made up of steel, steel alloy, aluminium, aluminium alloy, copper and copper alloy.
6. fin unit that is used for heat exchanger, described fin unit comprises:
Sheet stock with running surface, described surface are folded into serpentine pattern to be formed for transmitting fluid by a plurality of paths of described fin unit.
7. fin unit according to claim 6, wherein, described sheet stock comprises a series of fan folds that replace.
8. fin unit according to claim 6, wherein, described path is circular.
9. fin unit according to claim 6, wherein, described path is hexagonal.
10. fin unit according to claim 6, wherein, described sheet stock is selected from the group of being made up of steel, steel alloy, aluminium, aluminium alloy, copper and copper alloy.
11. a heat exchanger comprises:
Fin unit, described fin unit comprises:
Sheet stock with running surface, described surface are folded into serpentine pattern to be formed for transmitting first fluid by a plurality of paths of described fin unit along first direction.
12. heat exchanger according to claim 11 further comprises:
With the conduit of described fin unit thermo-contact, described conduit is configured to transmit second fluid along second direction.
13. heat exchanger according to claim 12 further comprises:
Second fin unit, wherein, described fin unit is arranged on first side of described conduit, and described second fin unit is arranged on second side of described conduit.
14. heat exchanger according to claim 12, wherein, first flow direction is perpendicular to second flow direction.
15. heat exchanger according to claim 12, wherein, first flow direction is opposite with second flow direction.
16. heat exchanger according to claim 11, wherein, described sheet stock comprises a series of fan folds that replace.
17. heat exchanger according to claim 11, wherein, described path is circular.
18. heat exchanger according to claim 11, wherein, described path is hexagonal.
19. heat exchanger according to claim 11, wherein, described sheet stock is selected from the group of being made up of steel, steel alloy, aluminium, aluminium alloy, copper and copper alloy.
20. a method of making fin unit comprises:
With the sheet stock rolling and forming, to produce running surface at described sheet stock; And
Described sheet stock is folded into serpentine pattern, to be formed for transmitting fluid by a plurality of paths of described fin unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40767610P | 2010-10-28 | 2010-10-28 | |
| US61/407,676 | 2010-10-28 | ||
| PCT/US2011/057214 WO2012058105A1 (en) | 2010-10-28 | 2011-10-21 | Heat exchanger fin, roll forming die assembly for forming same, and method of forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103339455A true CN103339455A (en) | 2013-10-02 |
Family
ID=45994332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800556089A Pending CN103339455A (en) | 2010-10-28 | 2011-10-21 | Heat exchanger fin, roll forming die assembly for forming same, and method of forming |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103339455A (en) |
| WO (1) | WO2012058105A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266527A (en) * | 2014-09-25 | 2015-01-07 | 镇江市天通铝业有限公司 | Radiating fin, radiating device and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150596A (en) * | 1991-07-11 | 1992-09-29 | General Motors Corporation | Heat transfer fin with dammed segments |
| US5353868A (en) * | 1993-04-19 | 1994-10-11 | Abbott Roy W | Integral tube and strip fin heat exchanger circuit |
| CN1258934A (en) * | 1998-11-27 | 2000-07-05 | 阿尔斯托姆控股公司 | Electronic power parts with cooler |
| US6244333B1 (en) * | 1998-08-27 | 2001-06-12 | Zeks Air Drier Corporation | Corrugated folded plate heat exchanger |
| US20040206484A1 (en) * | 2003-03-19 | 2004-10-21 | Masahiro Shimoya | Heat exchanger and heat transferring member with symmetrical angle portions |
| US20040251004A1 (en) * | 2003-01-02 | 2004-12-16 | Livernois Engineering Company | Serpentine fin with extended louvers for heat exchanger and roll forming tool for manufacturing same |
| CN101589286A (en) * | 2007-01-23 | 2009-11-25 | 摩丁制造公司 | Heat exchanger and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1460852A (en) * | 1917-09-18 | 1923-07-03 | Trenton Auto Radiator Works | Automobile radiator |
| US8424592B2 (en) * | 2007-01-23 | 2013-04-23 | Modine Manufacturing Company | Heat exchanger having convoluted fin end and method of assembling the same |
-
2011
- 2011-10-21 CN CN2011800556089A patent/CN103339455A/en active Pending
- 2011-10-21 WO PCT/US2011/057214 patent/WO2012058105A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150596A (en) * | 1991-07-11 | 1992-09-29 | General Motors Corporation | Heat transfer fin with dammed segments |
| US5353868A (en) * | 1993-04-19 | 1994-10-11 | Abbott Roy W | Integral tube and strip fin heat exchanger circuit |
| US6244333B1 (en) * | 1998-08-27 | 2001-06-12 | Zeks Air Drier Corporation | Corrugated folded plate heat exchanger |
| CN1258934A (en) * | 1998-11-27 | 2000-07-05 | 阿尔斯托姆控股公司 | Electronic power parts with cooler |
| US20040251004A1 (en) * | 2003-01-02 | 2004-12-16 | Livernois Engineering Company | Serpentine fin with extended louvers for heat exchanger and roll forming tool for manufacturing same |
| US20040206484A1 (en) * | 2003-03-19 | 2004-10-21 | Masahiro Shimoya | Heat exchanger and heat transferring member with symmetrical angle portions |
| CN101589286A (en) * | 2007-01-23 | 2009-11-25 | 摩丁制造公司 | Heat exchanger and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266527A (en) * | 2014-09-25 | 2015-01-07 | 镇江市天通铝业有限公司 | Radiating fin, radiating device and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012058105A1 (en) | 2012-05-03 |
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