EP2962055A1 - Solution d'ailette associée à un échangeur de chaleur à base de microcanaux - Google Patents

Solution d'ailette associée à un échangeur de chaleur à base de microcanaux

Info

Publication number
EP2962055A1
EP2962055A1 EP14756963.6A EP14756963A EP2962055A1 EP 2962055 A1 EP2962055 A1 EP 2962055A1 EP 14756963 A EP14756963 A EP 14756963A EP 2962055 A1 EP2962055 A1 EP 2962055A1
Authority
EP
European Patent Office
Prior art keywords
extrusions
fins
heat exchanger
heat
exchanger according
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
EP14756963.6A
Other languages
German (de)
English (en)
Other versions
EP2962055B1 (fr
EP2962055A4 (fr
Inventor
Ole Ploug
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.)
Hydro Extruded Solutions AS
Original Assignee
Sapa AS
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 Sapa AS filed Critical Sapa AS
Publication of EP2962055A1 publication Critical patent/EP2962055A1/fr
Publication of EP2962055A4 publication Critical patent/EP2962055A4/fr
Application granted granted Critical
Publication of EP2962055B1 publication Critical patent/EP2962055B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F28F1/128—Fins with openings, e.g. louvered fins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • the present invention relates to micro channel (multi-port) based heat exchangers for heat exchange or heat recovery in systems such as refrigeration or heat pump systems, in particular a condenser or evaporator in such systems.
  • Micro channel type heat exchangers based on Multi Port Extruded profiles of aluminium are known where serpentine fins, also of aluminium, are provided in the longitudinal direction of and between the extruded tubes or channels.
  • the fins are commonly brazed to the profiles at their elbow outer faces (as can be seen in the attached Fig. 1 ).
  • Heat exchangers of such type are for instance known from JP laid open publication No. 3-13794
  • Fig. 1 shows in perspective view part of a commonly known MPE based heat exchanger with serpentine fin assembly
  • Fig. 2 shows a perspective view part of a MPE based heat exchanger with a serpentine fin assembly according to the invention
  • Fig. 3 shows examples of extruded profiles that may suitably be used in connection with the present invention
  • Fig. 4 shows an expanded view of an assembly of a part of a web-MPE based heat exchanger with a serpentine fin assembly according to the invention
  • Fig. 5 shows an embodiment of the extrusion and fin design according to the invention where the crests or bends of the fins are partly removed
  • Fig. 6 shows a cross section of the assembly shown in Fig. 5 and how the fins are adopted to and brazed to the extrusions
  • Fig. 7 shows an alternative embodiment of the invention where the fins are provided with a "louvre" design.
  • Fig. 8 is an illustration of different louver and air flow designs
  • Fig. 9 shows alternative serpentine fin enhancement designs shows a further serpentine fin design with optimized reduction of heat transfer in the air flow direction, shows an embodiment of a web-MPE design with optimized braze flanges, shows still another alternative web-MPE design where part of the web material between the ports or tubes of the extrusion is removed.
  • a) is a perspective view and b) is a cross section of part of fin and tube embodiment showing a modification with improved bonding/brazing properties.
  • Fig. 1 shows in perspective view part of a commonly known MPE based heat exchanger 1 with serpentine fin assembly.
  • the serpentine fin 2 of the heat exchanger is provided in the longitudinal direction standing between the multi tube extrusions 3, 4 and is attached to the extrusions at their crests or bends 5 outer faces by means of the brazing 6.
  • a heat exchanger of this type is normally composed of a number of such extrusions 3 with "layers" of fins 2 and extrusions 3, 4 (one above the other), depending on the size and heat exchange capacity of the heat exchanger.
  • Fig. 2 shows part of a heat exchanger according to the invention where the serpentine fins 9 are provided transversally in relation to the extrusions 7, 8 and laying with their sharp edges 10, 11 perpendicular to the extrusions 7, 8.
  • the heat exchanger according to the invention as shown in Fig. 2 may be composed of one, a few, or number of extrusions 3, 4 (see corresponding Fig. 1 ) side by side, with "layers" of fins 9 depending on the size and heat exchange capacity of the heat exchanger.
  • the bends of the fins 9 may stretch beyond the side edges of the extrusions 7, 8.
  • extruded profiles that may suitably be used in connection with the present invention, i.e. the ordinary multi-port (or channel) extrusion, so-called MPE 5, 7, 8 as mentioned above and shown in figures 1 and 2 and a web type extrusion with "individual" tubes or micro channels 13 interlinked with a thinner flanges or webs 14 in the following referred to as web-MPE..
  • Fig. 4 shows an expanded view of an assembly of a part of a web-MPE 12 based heat exchanger with a serpentine fin 16 assembly according to the invention including a manifold 15.
  • Heat exchangers of this type is commonly provided with two manifolds, an inlet manifold and outlet manifold and this is therefore just an illustration showing only one manifold 15.
  • Fig. 4 also shows by means of arrows the direction of the refrigerant flowing in the web-MPE micro ports or tubes 17, respectively the direction of the air flowing on the outside of the heat-exchanger in the transversal direction of the web-MPE 12 but alongside the serpentine fins 16.
  • Fig. 5 further shows an embodiment of the extrusion 12 and fin 18 design according to the invention where the crests or bends of the fins are cut and partly removed, at 19, respectively 20. This is done to enhance and improve the air flow through the fins.
  • Fig. 6 still further shows a cross section of a similar assembly as shown in Fig. 5. As can be seen in this figure, part of the material of the fins 18 are removed and thereby adapted to the flanges or web sections 14 of the profiles 12 such that the fins 18 may be connected to the profiles basically along the total outer surface (web 14 including tubes 17) by brazing 21. This will improve the connection between the fins and extrusions and enhance heat transfer between the profile and fin.
  • an alternative may be to connect the fins to the tubes only as is indicated in Fig 5.
  • Fig. 7 shows an alternative embodiment of the invention where the serpentine fins 22 are provided with a "louver" 23 design to enhance convection of heat from the fins to the air or vice versa (depending on application).
  • the fins 22 are provided with vertical slits where the metal along the slits is pressed inwards or outwards creating transversal louvers 23 which are designed to pick up air directing it through the created openings in the fin.
  • Fig. 8 which shows different louver and air flow designs.
  • the crests or bends of the serpentine fins may be open or closed as stated in the figure.
  • Fig. 9 where the fins are provided with lengthwise 25 or crosswise 24 wave designs.
  • Other designs may also be possible such as herringbone pattern.
  • Fig. 10 shows a design where one or more heat transfer separation zones 31 can be punched in the fin. Similar design is used in the deeper F&T heat exchanger design to suppress heat transfer in the air flow direction.
  • Fig. 11 shows an alternative web-MPE design where the ports or tubes of the extrusions 26 are provided with outwardly protruding flanges 27 improving the brazing connection between the fins and extrusions as well as the heat transfer between the fins and aid extrusions.
  • Fig. 12 shows an extrusion web design where part of the material of webs 29 is removed to enable drainage between the tubes and when needed to reduce heat transfer in transversal direction of the tubes. If more of the web material is removed, the heat transfer is correspondingly also reduced. This design may be used to optimise heat transfer.
  • Fig. 13 a) shows a perspective view and b) is a cross section of part of fin 30 and tube 31 embodiment where the lower part 32 of the fin 30 is buckled outwards to improve the bonding or brazing (attachment) of the fin to the tubes.
  • the invention as defined in the claims is not delimited to the example as described above and shown in the figures.
  • the heat exchanger can be used, not only as condenser or evaporator in a refrigeration system, but in any system where heat is exchanged or recovered.
  • the expression multi tube as defined in the claim may include single or multi tube extruded profiles of aluminium.

Abstract

La présente invention concerne des échangeurs de chaleur à base de tubes à microrainures et de microcanaux ou d'orifices multiples en aluminium pour l'échange de chaleur ou la récupération de chaleur dans des systèmes tels que la réfrigération ou une pompe à chaleur, en particulier un condenseur ou un évaporateur dans de tels systèmes. L'échangeur de chaleur comprend, en plus des extrusions de microcanaux ou d'orifices multiples, des ailettes à serpentin (9) attachées aux extrusions (7, 8) et des collecteurs/distributeurs manifolds d'entrée et de sortie (15) raccordés aux extrusions. Les ailettes à serpentin (9) sont situées transversalement par rapport aux extrusions (7, 8) et reposant avec leurs bords latéraux (10, 11) perpendiculaires aux extrusions (7, 8). Les extrusions peuvent être du type extrusion à orifices multiples, appelées aussi MPE (5) ou du type à âme, MPE à âme (12) avec des orifices ou des microcanaux individuels (13) interconnectés avec des ailettes ou des âmes plus fines (14).
EP14756963.6A 2013-03-01 2014-01-30 Solution d'ailette associée à un échangeur de chaleur à base de microcanaux Active EP2962055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20130316 2013-03-01
PCT/NO2014/000009 WO2014133395A1 (fr) 2013-03-01 2014-01-30 Solution d'ailette associée à un échangeur de chaleur à base de microcanaux

Publications (3)

Publication Number Publication Date
EP2962055A1 true EP2962055A1 (fr) 2016-01-06
EP2962055A4 EP2962055A4 (fr) 2016-10-26
EP2962055B1 EP2962055B1 (fr) 2018-05-23

Family

ID=51428558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14756963.6A Active EP2962055B1 (fr) 2013-03-01 2014-01-30 Solution d'ailette associée à un échangeur de chaleur à base de microcanaux

Country Status (4)

Country Link
EP (1) EP2962055B1 (fr)
KR (1) KR102228486B1 (fr)
CN (1) CN105556235B (fr)
WO (1) WO2014133395A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11060801B2 (en) 2015-06-29 2021-07-13 Carrier Corporation Microtube heat exchanger
DE202017102436U1 (de) 2016-08-08 2017-11-24 Bundy Refrigeration International Holding B.V. Wärmetauscher mit Mikrokanal-Struktur oder Flügelrohr-Struktur
EP3491323B1 (fr) 2016-08-08 2024-04-17 Grandholm Production Services Ltd. Échangeur de chaleur présentant une structure à micro-canal ou une structure à tube à ailettes
CN111380394B (zh) * 2018-12-29 2022-02-01 杭州三花微通道换热器有限公司 换热器
US11035578B2 (en) 2019-02-21 2021-06-15 Johnson Controls Technology Company Removable fin heat exchanger systems and methods

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104094A (ja) * 1982-12-07 1984-06-15 Showa Alum Corp 熱交換器
EP0132237A3 (fr) * 1983-06-30 1986-02-05 Renato Ferroni Elément pour l'échange de chaleur entre fluides et radiateur fabriqué avec le dit élément
US4781320A (en) * 1987-04-27 1988-11-01 Nihon Radiator Co., Ltd. Method for the production of a heat exchanger
JPH01181092A (ja) * 1988-01-14 1989-07-19 Nippon Denso Co Ltd 熱交換器
JPH01305296A (ja) * 1988-06-03 1989-12-08 Diesel Kiki Co Ltd 熱交換器用コルゲートフィン
JPH02115288A (ja) * 1988-10-24 1990-04-27 Kobe Steel Ltd 熱交換器の製造方法
JPH0313794A (ja) 1989-06-12 1991-01-22 Matsushita Refrig Co Ltd フィン付熱交換器
JP4207331B2 (ja) * 1999-09-29 2009-01-14 株式会社デンソー 複式熱交換器
US20030102113A1 (en) * 2001-11-30 2003-06-05 Stephen Memory Heat exchanger for providing supercritical cooling of a working fluid in a transcritical cooling cycle
JP2004092942A (ja) * 2002-08-29 2004-03-25 Denso Corp 熱交換器
KR100516195B1 (ko) * 2003-04-17 2005-09-26 삼성공조 주식회사 차량용 일체형 열교환기
CN101526324B (zh) * 2009-04-13 2010-07-28 三花丹佛斯（杭州）微通道换热器有限公司 翅片、具有该翅片的换热器和换热器装置
BR112012005900A2 (pt) * 2009-09-18 2016-03-15 Norsk Hydro As trocador de calor para troca de calor ou recuperação de calor em sistemas
CN102192672A (zh) * 2010-03-16 2011-09-21 乐金电子(天津)电器有限公司 扁管换热器结构及其装配方法
DE102010043243A1 (de) * 2010-11-03 2012-05-03 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher

Also Published As

Publication number Publication date
KR102228486B1 (ko) 2021-03-15
EP2962055B1 (fr) 2018-05-23
EP2962055A4 (fr) 2016-10-26
CN105556235B (zh) 2018-05-25
CN105556235A (zh) 2016-05-04
WO2014133395A1 (fr) 2014-09-04
KR20150122776A (ko) 2015-11-02

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