CN1961192A - Brazed radiating fin heat exchanger - Google Patents

Brazed radiating fin heat exchanger Download PDF

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Publication number
CN1961192A
CN1961192A CN200580005954.0A CN200580005954A CN1961192A CN 1961192 A CN1961192 A CN 1961192A CN 200580005954 A CN200580005954 A CN 200580005954A CN 1961192 A CN1961192 A CN 1961192A
Authority
CN
China
Prior art keywords
fin
heat exchanger
pipe
otch
collar
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.)
Granted
Application number
CN200580005954.0A
Other languages
Chinese (zh)
Other versions
CN1961192B (en
Inventor
P·L·米切尔
M·E·海登瑞齐
R·A·卢米斯
J·R·哈里斯
D·L·戴维斯
D·E·劳拉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Modine Grenada LLC
Original Assignee
Outokumpu Heatcraft USA LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Outokumpu Heatcraft USA LLC filed Critical Outokumpu Heatcraft USA LLC
Publication of CN1961192A publication Critical patent/CN1961192A/en
Application granted granted Critical
Publication of CN1961192B publication Critical patent/CN1961192B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F1/24—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 and extending transversely
    • F28F1/32—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 and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/125—Fastening; Joining by methods involving deformation of the elements by bringing elements together and expanding

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

A fin collar (30) comprises a plurality of slits (32) disposed around a perimeter of the collar (30) enhances flux application and brazing clad flow into the tube to fin joint to provide an improved thermal and structural bond.

Description

The radiating fin heat exchanger of soldering
Technical field
The present invention relates to the heat exchanger fin ring, especially a kind of improved fin collar of in the radiating fin heat exchanger of soldering, using.
Background technology
Fin and tube heat exchanger are used for multiple application, include but not limited to air conditioning and refrigeration, in this case, its objective is the heat between exchange two fluids, the neat liquid that described two fluids normally flow in heat exchanger tube or just experiencing the liquid of gasification or the liquid that becomes from gas liquefaction, and the gas of the normally air that flows around heat exchanger fin.In such heat exchanger, a plurality of thin fin are arranged to parallel to each other between two tube sheets.Heat exchanger tube is by the hole in tube sheet and fin.Installation between pipe and fin is very tight, to such an extent as to the effective surf zone of heat exchanger tube is because the zone of fin increases and its heat exchange area thereby also increase.Because the increase of surf zone, fin and tube heat exchanger provide the improved heat exchange performance for the common tube type heat exchanger of same size.
The commonsense method of making this type of heat exchanger is at first to assemble a plurality of fin between two tube sheets, then many thin extended tubes is passed in hole selected in the fin and the same hole in each tube sheet.Next, form bell at the end of thin extended tube, one of enlarged tube section then, thereby guarantee to manage and fin between tight machinery install.
In order to improve the heat and the structure combination of the mechanical connection that causes pipe and fin, need a kind of soldering radiating fin heat exchanger that connects in the improved soldering of managing the fin place that has.
Summary of the invention
The present invention satisfies the demand by a kind of fin collar is provided, and this fin collar has and a kind ofly strengthens that solder flux applies and the joint of brazing coating inflow pipe and fin, thereby a kind of improved thermodynamics and structure combination are provided.
Description of drawings
The present invention is example in the accompanying drawings, in the accompanying drawings, and the identical identical or similar parts of label indication.Fig. 1 is the perspective view of radiating fin heat exchanger of the present invention;
Fig. 2 is the perspective view by the pipe of the present invention of several fin placements;
Fig. 3 is the perspective view of fin collar of the present invention;
Fig. 4 is the perspective view of embodiment of the replacement of fin collar of the present invention;
Fig. 5 is the perspective view of embodiment of another replacement of fin collar of the present invention;
Fig. 6 has shown that air flows through the perspective view of fin collar of the present invention of the phenomenon of ring;
Fig. 7 is the top view of the fin collar of Fig. 6.
The specific embodiment
Fig. 1 has described and has implemented a fin and the tube heat exchanger 10 that comprises fin 12 of the present invention.Each fin has a plurality of holes 16.The commonsense method of making heat exchanger 10 is at first to assemble a plurality of fin 12 between two tube sheets 18, then a plurality of thin extended tubes is passed in selected hole 16 and the same hole 16 in each tube sheet 18 in the fin 12.Arrive the end of thin extended tube 20 by assembling a plurality of return bends 22, thereby form the fluid flow path of one or more sealings of the pipe that passes through heat exchanger, make heat exchanger assemblies complete.
When installing or operation during, flow through heat exchanger 10 via fluid path that limits by interconnected thin extended tube 20 and return bend 22 or mulitpath such as the first fluid of cold-producing medium as the device of air-conditioning.Second fluid such as air flows through and circulation fin 12 and pipe 20.If between two fluids, the temperature difference is arranged, then from two fluids than warm fluid to taking place by tube wall and fin than the heat transmission of cold fluid.
Turn to Fig. 2, shown the single pipe of placing by a plurality of fin 12 20.Each fin 12 provides the vertical fin collar of placing around opening 16.As shown, ring 30 can be crooked, thereby nonreentrant surface 31 is in the face of pipe 20.Can surrounding tube the number of 20 fin of placing 12 by the height decision of ring 30.
In order to make heat exchanger of the present invention, fin 12 is pressed soldering (or brazing) furnace brazing (or brazing) with the joint of pipe 20 at controlled atmosphere.The coating that depends on use, the temperature of soldering can change in the scope of 1120  at 1070 .
Pipe 20 can be by there being aluminium alloy coating or that do not have coating to be configured to.Pipe 20 can be rolled into, and has weld seam or lock seam.As interchangeable scheme, pipe 20 can be squeezed into.Depend on pipe diameter and operating pressure, pipe 20 wall thickness that can have between 0.016 " to 0.05 ".Section shapes such as pipe 20 is can be circular, annular, oval-shaped.Tube material is the alloy of a kind of long life, high-intensity, corrosion resistance.For the pipe that is squeezed into, can use 3003 aluminium alloys.For the pipe that is rolled into, can use Alcan (Alcan Co., Ltd) X-1000.Coating alloy can be 4045 or 4343 aluminium alloys.
Fin 12 and fin collar 30 can be configured to by aluminium alloy 3003 and 4045 or 4343 alloy clad.If there is not coating, fin can be configured to by 1100 aluminium alloys.Fin can be configured to the thickness of 0.003 " to 0.016 ".
Except above-mentioned aluminium alloy, the present invention can be used for copper radiating rib soldering (or brazing) is arrived copper pipe to copper pipe or aluminium radiator fin soldering (or brazing), as for one of ordinary skill in the art significantly.
In Fig. 3, shown first embodiment of fin collar 30 of the present invention.A plurality of otch 32 are around the circumference setting of fin collar 30.Otch 32 can form by remove material from ring, and can place equidistantly around the circumference of ring 30.Otch can stretch out from encircling 30 top 43, and at discrete backing downside about 0.02 " the some place stop.Otch 32 is limited by paired relative wall 34 and 36.Wall 34 and 36 can be at angle, to such an extent as to the width 40 of otch 32 little by little is increased to the top 43 of ring 30 from the bottom 42 of otch 32.Depend on the height of ring and the number of otch, otch 32 can be in the range of 0.015 " to 0.15 " on width.Otch 32 is improving and manages being connected of fin on the thermodynamics with on the structure.
About the structural behaviour at joint, fin collar 30 of the present invention has strengthened that solder flux applies and soldering (or brazing) clad flow, because otch 32 allows that coating flows through the both sides of ring 30.
About heat transfer performance, otch fin collar 30 has increased the heat transmission between air and tube-surface.Otch 32 has been opened for air flows and to be responsible for 20 part surface, allows the direct heat transmission from air to pipe 20, and not from the resistance in second source.Usually, these parts of the person in charge 20 can be covered by continuous fin collar.
Turn to Fig. 4, shown the embodiment of the replacement of fin collar of the present invention.Fin collar 40 has rectangular-shaped otch 42.Otch 42 is limited with relative sidewall 46 and 48 by diapire 44.Diapire 44 can extend to the downside about 0.02 of discrete backing 12 " the some place.Ring 40 can have such curvature, and promptly they become convex on the side in the face of pipe 20.
In Fig. 5, shown the embodiment of another replacement of fin collar of the present invention.Fin collar 60 is elongated in vertical (tubular axis line) direction.Ring 60 has a plurality of otch 62 that limit therein.Otch 62 also has the shape of rectangle and is limited with a pair of relative sidewall 66,68 by diapire 64.Diapire 64 can extend to the downside about 0.02 of discrete backing 12 " a bit.
In Fig. 6 and 7, fin collar 30 of the present invention is illustrated, and arrow 70 representative rings wherein are around the air stream of the ring between the operating period 30.The shape of fin collar 30 provide perpendicular to air stream, around the barrier of the circumference of fin collar 30.Barrier will be provided at the turbulent flow that indicates along the line 80 by bending in the air marginal layer of fin collar 30, and this has increased at air and has managed the coefficient of overall heat transmission between 20.The turbulent flow that increases also will occur around the zone near the bottom of the fin collar 30 in the zone of the highest fin efficiency, be increased in the coefficient of overall heat transmission in the described zone.
Though describe the present invention in conjunction with some embodiment, but this is not to limit the scope of the invention the particular form of being set forth, on the contrary, this is to cover any replacement, modification and equivalents that may be contained in by the additional the spirit and scope of the present invention that claims limited.

Claims (31)

1. heat exchanger comprises:
At least one fin has first side, second side and opening that at least one limits therein;
At least one fin collar is arranged on the described fin, and around described at least one opening, described fin collar has the upright wall that stretches out described fin, and this wall has a plurality of otch that are formed at wherein; And,
At least one pipe that is used to transmit compression fluid, described pipe is provided with by described at least one opening in described fin.
2. heat exchanger as claimed in claim 1 is characterized in that, described at least one pipe has circular section shape.
3. heat exchanger as claimed in claim 1 is characterized in that, described at least one pipe has the section shape of annular.
4. heat exchanger as claimed in claim 1 is characterized in that, described at least one pipe has oval-shaped section shape.
5. heat exchanger as claimed in claim 1 is characterized in that, described a plurality of otch are equidistantly arranged around described ring basically.
6. heat exchanger as claimed in claim 1 is characterized in that, described a plurality of otch are limited by a pair of relative wall, this to wall at angle, thereby described otch away from the some place of described fin than wide at some place near described fin.
7. heat exchanger as claimed in claim 1 is characterized in that described a plurality of otch have the shape of rectangle.
8. heat exchanger as claimed in claim 1 is characterized in that, described at least one fin collar is configured to by aluminium alloy.
9. heat exchanger as claimed in claim 8 is characterized in that, also comprises coating.
10. heat exchanger as claimed in claim 1 is characterized in that, described at least one pipe is configured to by aluminium alloy.
11. heat exchanger as claimed in claim 1 is characterized in that, described at least one fin is attached to described at least one pipe by soldering.
12. heat exchanger as claimed in claim 1 is characterized in that, described at least one fin is attached to described at least one pipe by soldering in the soldering oven of controlled atmosphere.
13. heat exchanger as claimed in claim 1 is characterized in that, described at least one Guan Youtong is configured to.
14. heat exchanger as claimed in claim 1 is characterized in that, described at least one fin is configured to by copper.
15. heat exchanger as claimed in claim 1 is characterized in that, described fin collar is bare.
16. a heat exchanger comprises:
At least one fin has first side, second side and opening that at least one limits therein;
At least one fin collar is arranged on the described fin collar around described at least one opening, and described fin collar has the upright wall that stretches out described fin, and described wall has a plurality of otch that limit therein; And,
At least one pipe that is used to transmit compression fluid, described pipe passes through the described opening setting in described fin, and is attached to described fin collar by soldering.
17. heat exchanger as claimed in claim 16 is characterized in that, described at least one pipe has circular section shape.
18. heat exchanger as claimed in claim 16 is characterized in that, described at least one pipe has the section shape of annular.
19. heat exchanger as claimed in claim 16 is characterized in that, described at least one pipe has oval-shaped section shape.
20. heat exchanger as claimed in claim 16 is characterized in that, described a plurality of otch are arranged around described ring basically equidistantly.
21. heat exchanger as claimed in claim 16 is characterized in that, it is fixed that described a plurality of otch are made of a pair of relative wall, this to wall at angle, thereby described otch away from the some place of described fin than wide at some place near described fin.
22. heat exchanger as claimed in claim 16 is characterized in that, described a plurality of otch have the shape of rectangle.
23. heat exchanger as claimed in claim 16 is characterized in that, described at least one fin collar is configured to by aluminium alloy.
24. heat exchanger as claimed in claim 23 is characterized in that, also comprises coating.
25. heat exchanger as claimed in claim 16 is characterized in that, described at least one pipe is configured to by aluminium alloy.
26. heat exchanger as claimed in claim 16 is characterized in that, described at least one fin collar is attached to described at least one pipe by soldering.
27. heat exchanger as claimed in claim 16 is characterized in that, described at least one fin is attached at least one pipe by soldering in the soldering oven of controlled atmosphere.
28. heat exchanger as claimed in claim 16 is characterized in that, described at least one Guan Youtong is configured to.
29. heat exchanger as claimed in claim 16 is characterized in that, described at least one fin is configured to by copper.
30. heat exchanger as claimed in claim 16 is characterized in that, described fin collar is bare.
31. a method that forms radiating fin heat exchanger comprises:
Provide at least one to have the fin of first side, second side and at least one opening; At least one is arranged on fin collar on the described fin around described at least one opening, and described fin collar has the upright wall that stretches out described fin, and described wall has a plurality of otch that limit therein; And at least one pipe that is used to transmit compression fluid, described pipe is attached to described fin collar by described at least one opening setting and by soldering;
Be provided for the coating of the joint of described fin of soldering and pipe; And,
At the described fin of soldering furnace brazing of controlled atmosphere and the joint of pipe.
CN200580005954.0A 2004-01-20 2005-01-13 Brazed radiating fin heat exchanger Expired - Fee Related CN1961192B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/761,448 US20050155750A1 (en) 2004-01-20 2004-01-20 Brazed plate fin heat exchanger
US10/761,448 2004-01-20
PCT/US2005/001550 WO2005073659A1 (en) 2004-01-20 2005-01-13 Brazed plate fin heat exchanger

Publications (2)

Publication Number Publication Date
CN1961192A true CN1961192A (en) 2007-05-09
CN1961192B CN1961192B (en) 2013-01-09

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CN200580005954.0A Expired - Fee Related CN1961192B (en) 2004-01-20 2005-01-13 Brazed radiating fin heat exchanger

Country Status (6)

Country Link
US (2) US20050155750A1 (en)
EP (1) EP1714100B1 (en)
JP (1) JP5296990B2 (en)
CN (1) CN1961192B (en)
AT (1) ATE556285T1 (en)
WO (1) WO2005073659A1 (en)

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CN104634154A (en) * 2013-11-07 2015-05-20 Lg电子株式会社 Heat exchanger and method of manufacturing the same
CN107401861A (en) * 2017-08-17 2017-11-28 河南科隆集团有限公司 A kind of evaporator fin and its manufacture method

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CN103003654B (en) * 2010-07-26 2016-07-06 开利公司 Aluminum finned tube heat exchanger
CN104634154A (en) * 2013-11-07 2015-05-20 Lg电子株式会社 Heat exchanger and method of manufacturing the same
CN107401861A (en) * 2017-08-17 2017-11-28 河南科隆集团有限公司 A kind of evaporator fin and its manufacture method

Also Published As

Publication number Publication date
JP5296990B2 (en) 2013-09-25
JP2007518962A (en) 2007-07-12
EP1714100A1 (en) 2006-10-25
ATE556285T1 (en) 2012-05-15
US20050155750A1 (en) 2005-07-21
CN1961192B (en) 2013-01-09
US20070163767A1 (en) 2007-07-19
WO2005073659A1 (en) 2005-08-11
EP1714100B1 (en) 2012-05-02

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