EP0769669A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0769669A1
EP0769669A1 EP95202797A EP95202797A EP0769669A1 EP 0769669 A1 EP0769669 A1 EP 0769669A1 EP 95202797 A EP95202797 A EP 95202797A EP 95202797 A EP95202797 A EP 95202797A EP 0769669 A1 EP0769669 A1 EP 0769669A1
Authority
EP
European Patent Office
Prior art keywords
tube
heat exchanger
strips
strip
holes
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.)
Withdrawn
Application number
EP95202797A
Other languages
German (de)
English (en)
Inventor
Bjorn Vestergaard
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.)
Yara Technology BV
Norsk Hydro Elektrisk Kvaelstof AS
Original Assignee
Norsk Hydro Technology BV
Norsk Hydro Elektrisk Kvaelstof 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 Norsk Hydro Technology BV, Norsk Hydro Elektrisk Kvaelstof AS filed Critical Norsk Hydro Technology BV
Priority to EP95202797A priority Critical patent/EP0769669A1/fr
Priority to AU72937/96A priority patent/AU7293796A/en
Priority to PCT/EP1996/004490 priority patent/WO1997014927A1/fr
Publication of EP0769669A1 publication Critical patent/EP0769669A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • F28D1/047—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 the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—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 the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • 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
    • F28F2215/12—Fins with U-shaped slots for laterally inserting conduits

Definitions

  • the invention relates to a heat exchanger including a number of strips stacked adjacent one another in parallel relationship to provide air passages, and at least one flat tube for carrying a fluid, said tube or tubes passing through holes in the strips and being fitted in the holes in heat exchange relationship with the strips.
  • a heat exchanger is known from US - A - 4 428 419.
  • a number of flat tubes is passing through a number of holes provided in the strips. Each tube being fitted within one hole and being completely surrounded by the edges of that hole.
  • the tubes can be used for a fluid flow passing in parallel through all the tubes at the same time. Otherwise it is possible to make the right connections between the ends of the individual tubes in order to provide one or more flows in series.
  • each end of each tube independent of the flow system to be used, has to be provided with a coupling system in order to provide the tube with an inlet and an outlet for a fluid.
  • This is a labour intensive product which is highly susceptible for leakages.
  • each tube is zigzag folded so as to have a number of rectilinear sections interconnected by bent portions.
  • each strip is provided with holes with such dimension that each opening fits around two sections of the same tube. In this way assembling is easy as the tube may be inserted in the hole by introducing the bent portion interconnecting the two sections into the hole. Otherwise the contact area between the strips and the tube is still high in order to have a good heat exchanger contact.
  • each strip is provided with elongated holes with such dimension that each hole fits around one section of the tube.
  • each elongated hole has a slot-like shape with an open end at one end of the strip.
  • each tube comprising rectilinear sections and bent portions can easily be fitted to the strips by inserting the same through the open ends of the slot-like holes.
  • the heat exchanger 1 comprises a number of strips 2, which in the embodiment shown each consists of a rectangular plate made of a material with good heat conducting properties such as aluminium or aluminium alloys.
  • the strips 2 are positioned in a parallel way with respect to each other thereby forming a cooling pack.
  • Each strip 2 is provided with a number of openings or holes 3 which in the embodiment shown have an elongated form, and are open ended to one side so as to firm cut-outs in the strip 2, as shown in Figs 1 and 3.
  • a flat tube 4 is inserted in the openings 3 of the cooling pack, the flat tube 4 being bent in a serpentine way and as such is composed of a number of rectilinear sections 5 and bent portions 6.
  • the flat tube is preferably of the type obtained by multiple port extrusion, i.e. a flat tube having a number of parallel internal flowing channels 10 (see Fig.
  • Such a tube may be produced by a single step extrusion process by using especially adapted extrusion dies.
  • the main advantage of such flat tubes is that the heat exchange surface is much greater compared with traditional round tubes, so that heat exchangers based upon this type of tubes are more effective.
  • the rectilinear portions are parallel to each other and the distance between the facing outer walls of two adjacent rectilinear portions is equal to the smallest distance between two adjacent openings 3 in the strips 2.
  • the heat exchanger of the embodiment shown has parallel rectilinear sections of tubes it is possible, according to the invention, to use non-parallel rectilinear sections.
  • the strips are to be provided with openings which are not located on the same place in each strip, but the position of the opening is gradually changing from one strip to another.
  • each strip 3 is provided with a number of substantially rectangular openings 24 with four rounded corners 25.
  • One dimension of the opening 24 corresponds to the width of the flat tube 4 to be used in connection with this strip 2.
  • the other dimension is substantially bigger than the height of the tube 5.
  • dimension is substantially equal to the distance between two non-facing walls of two adjacent rectilinear portions of the tube as shown in Fig. 4.
  • the heat exchanger is obtained in that the tube is shaped in accordance with Fig. 4.
  • the tube 4 is with the bent portion 6 first introduced in the openings 24 of the stack of strips 3. In this way a heat exchanger almost identical to the heat exchanger shown in the figures 1 and 2 can be obtained.

Landscapes

  • 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)
EP95202797A 1995-10-17 1995-10-17 Echangeur de chaleur Withdrawn EP0769669A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95202797A EP0769669A1 (fr) 1995-10-17 1995-10-17 Echangeur de chaleur
AU72937/96A AU7293796A (en) 1995-10-17 1996-10-16 Heat exchanger
PCT/EP1996/004490 WO1997014927A1 (fr) 1995-10-17 1996-10-16 Echangeur de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95202797A EP0769669A1 (fr) 1995-10-17 1995-10-17 Echangeur de chaleur

Publications (1)

Publication Number Publication Date
EP0769669A1 true EP0769669A1 (fr) 1997-04-23

Family

ID=8220725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95202797A Withdrawn EP0769669A1 (fr) 1995-10-17 1995-10-17 Echangeur de chaleur

Country Status (3)

Country Link
EP (1) EP0769669A1 (fr)
AU (1) AU7293796A (fr)
WO (1) WO1997014927A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019162A1 (fr) * 1998-09-30 2000-04-06 Norsk Hydro Asa Ailette d'echangeur de chaleur
DE102006037302A1 (de) * 2006-08-08 2008-02-14 Behr Gmbh & Co. Kg Wärmetauscher, insbesondere für eine Kraftfahrzeug-Klimaanlage
WO2010003938A1 (fr) * 2008-07-07 2010-01-14 Arcelik Anonim Sirketi Evaporateur
US20130299152A1 (en) * 2011-01-21 2013-11-14 Daikin Industries, Ltd. Heat exchanger and air conditioner
US20130299141A1 (en) * 2011-01-21 2013-11-14 Daikin Industries, Ltd. Heat exchanger and air conditioner
EP3922104A1 (fr) 2020-06-11 2021-12-15 Calopor Appareil de réfrigération avec dispositif de retrait de chaleur statique monobloc

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015040746A1 (fr) * 2013-09-20 2015-03-26 三菱電機株式会社 Échangeur de chaleur ainsi que procédé de fabrication de celui-ci, et dispositif de conditionnement d'air équipé de celui-ci

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532301A (en) * 1945-11-29 1950-12-05 Mccord Corp Condenser
FR1022039A (fr) * 1950-07-13 1953-02-26 Leon Daum & Cie Formes d'ailettes pour condenseurs et procédés de mise en place
DE2605262A1 (de) * 1976-02-11 1977-08-18 Benteler Werke Ag Lamellenwaermetauscher aus durchgehendem metallband
US4428419A (en) 1980-01-28 1984-01-31 Dubrovsky Evgeny V Tube-and-fin heat exchanger
JPS62166294A (ja) * 1986-01-16 1987-07-22 Nippon Denso Co Ltd 熱交換器
US4842185A (en) * 1986-04-25 1989-06-27 Mitsubishi Aluminum Co., Ltd. Method of brazing a heat exchanger using a reaction flux
JPH02154987A (ja) * 1988-12-06 1990-06-14 Matsushita Refrig Co Ltd フィン付熱交換器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04177091A (ja) * 1990-11-08 1992-06-24 Toshiba Corp 熱交換器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532301A (en) * 1945-11-29 1950-12-05 Mccord Corp Condenser
FR1022039A (fr) * 1950-07-13 1953-02-26 Leon Daum & Cie Formes d'ailettes pour condenseurs et procédés de mise en place
DE2605262A1 (de) * 1976-02-11 1977-08-18 Benteler Werke Ag Lamellenwaermetauscher aus durchgehendem metallband
US4428419A (en) 1980-01-28 1984-01-31 Dubrovsky Evgeny V Tube-and-fin heat exchanger
JPS62166294A (ja) * 1986-01-16 1987-07-22 Nippon Denso Co Ltd 熱交換器
US4842185A (en) * 1986-04-25 1989-06-27 Mitsubishi Aluminum Co., Ltd. Method of brazing a heat exchanger using a reaction flux
JPH02154987A (ja) * 1988-12-06 1990-06-14 Matsushita Refrig Co Ltd フィン付熱交換器

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 001 (M - 656) 6 January 1988 (1988-01-06) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 404 (M - 1018)<4347> 31 August 1990 (1990-08-31) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019162A1 (fr) * 1998-09-30 2000-04-06 Norsk Hydro Asa Ailette d'echangeur de chaleur
DE102006037302A1 (de) * 2006-08-08 2008-02-14 Behr Gmbh & Co. Kg Wärmetauscher, insbesondere für eine Kraftfahrzeug-Klimaanlage
WO2010003938A1 (fr) * 2008-07-07 2010-01-14 Arcelik Anonim Sirketi Evaporateur
CN102089602B (zh) * 2008-07-07 2012-12-05 阿塞里克股份有限公司 蒸发器
US20130299152A1 (en) * 2011-01-21 2013-11-14 Daikin Industries, Ltd. Heat exchanger and air conditioner
US20130299141A1 (en) * 2011-01-21 2013-11-14 Daikin Industries, Ltd. Heat exchanger and air conditioner
US9328973B2 (en) 2011-01-21 2016-05-03 Daikin Industries, Ltd. Heat exchanger and air conditioner
EP3922104A1 (fr) 2020-06-11 2021-12-15 Calopor Appareil de réfrigération avec dispositif de retrait de chaleur statique monobloc
FR3111417A1 (fr) 2020-06-11 2021-12-17 Calopor Appareil de réfrigération avec dispositif de retrait de chaleur statique monobloc

Also Published As

Publication number Publication date
AU7293796A (en) 1997-05-07
WO1997014927A1 (fr) 1997-04-24

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