EP0539638B1 - Wärmeaustauscher mit Rohren, die durch Streckmetall verbunden sind - Google Patents

Wärmeaustauscher mit Rohren, die durch Streckmetall verbunden sind Download PDF

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Publication number
EP0539638B1
EP0539638B1 EP19910402881 EP91402881A EP0539638B1 EP 0539638 B1 EP0539638 B1 EP 0539638B1 EP 19910402881 EP19910402881 EP 19910402881 EP 91402881 A EP91402881 A EP 91402881A EP 0539638 B1 EP0539638 B1 EP 0539638B1
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EP
European Patent Office
Prior art keywords
tubes
perforated portions
row
sealing contact
portions
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.)
Expired - Lifetime
Application number
EP19910402881
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English (en)
French (fr)
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EP0539638A1 (de
Inventor
Jacques Cheron
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IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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Publication date
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to DE1991627199 priority Critical patent/DE69127199T2/de
Publication of EP0539638A1 publication Critical patent/EP0539638A1/de
Application granted granted Critical
Publication of EP0539638B1 publication Critical patent/EP0539638B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • 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
    • F28F1/14—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 longitudinally
    • F28F1/22—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 longitudinally 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
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/12—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes expanded or perforated metal plate

Definitions

  • the invention relates to new heat exchangers which can be used in particular for exchanges between two fluids, for example between a liquid and a gas and a method for their production.
  • Liquid-gas heat exchangers generally comprise a set of tubes which are substantially parallel to each other through which the liquid participating in the exchange flows, the gas participating in the exchange circulating between the tubes, generally in a direction perpendicular to the axis of the tubes.
  • each tube can be provided with a plurality of fins, which consist of plates of various shapes arranged around the tube throughout its length, generally in planes substantially perpendicular to the axis of the tube.
  • the fins have the drawback of providing the gas flow transverse to the axis of the tubes with a contact surface such that, even if it increases the efficiency of the heat exchange, it also causes significant pressure losses. for the gas flowing in contact with it.
  • exchangers comprising batteries of parallel tubes, arranged in several rows, in which each tube is connected to the two adjacent tubes of the same row by a fabric of heat-conducting material, in thermal contact with each of the two tubes along a generator thereof.
  • the document FR-A-1,280,498 describes a heat exchanger constituted by tubes conducting the internal fluid and by sheets (or plates) of heat exchange with the ambient air, these sheets deviating from said tubes in the radial direction and being provided with strips, folded from the plane of the sheet, so as to form rows of corrugated strips, the neighboring strips being offset by a corrugation.
  • the slats can be folded by stamping from the plane of the sheet, with simultaneous stretching of the material.
  • corrugated strips are perpendicular to the axis of the tubes.
  • document FR-A-1 542 182 describes a heat exchanger of a similar type but in which the tubes are connected by perforated plates, the slots of which can be parallel to the axis of the tubes.
  • the heat exchangers of the present invention can be generally defined in that they comprise a plurality of substantially parallel tubes which can be associated in at least one row, for the circulation of a first fluid participating in the exchange (more particularly a liquid), the second fluid (more particularly a gas) circulating outside the tubes in a direction generally perpendicular to the direction of said tubes, each tube of one of said rows being connected to the two adjacent tubes of the same row (except for the end tubes of the rows, which have only one adjacent tube in the same row) by an expanded metal plate secured or made integral with each of the two tubes that it connects, along a generator thereof; being said plates connecting said tubes are formed in one piece from one end to the other of the same row of tubes, this piece consisting of a strip of expanded metal 1 (fig, 1A) having, after a punching creating transverse slots followed by longitudinal drawing, an alternation of perforated portions 2 and non-perforated portions 3 used to form portions of tubes, said exchanger being characterized in that, for each row of tubes, the non-perforated portions
  • the thickness of the metal strips used can be for example about 0.2 to 5 millimeters and the mesh size of the expanded metal from about 0.2 mm to a few centimeters.
  • FIGS. 4A and 4B there is associated opposite, for each row of tubes, two strips of expanded metal 8 and 9 comprising, like the strips 1 of FIG. 1A, perforated parts (respectively 10 and 11) and non-perforated parts (respectively 12 and 11), each of these strips 8 and 9 being formed for example by stamping, so as to present a plurality of half tubes (14 and 15 respectively) with substantially parallel axes, the strip portions between two adjacent half-tubes corresponding to the perforated parts 10 and 11 being shaped, for example during stamping, so that at the level of these perforated portions, the two strips of metal deployed facing each other are not in contact with one another, but separated by a distance denoted d, when the two half-tubes 14 and 15 facing each other for their part are in contact with each other , by their edges.
  • two strips of expanded metal 8 and 9 comprising, like the strips 1 of FIG. 1A, perforated parts (respectively 10 and 11) and non-perforated parts (respectively 12 and
  • the two associated bands facing each other are made integral with each other by any means allowing the sealing between the inside and the outside of each tube formed by the association of two half-tubes opposite, for example by welding, by brazing or by bonding of the homologous parts in contact, or even by clamping with interposition of seals all along said homologous parts.
  • the heat exchange structures according to the invention comprise a plurality of rows of tubes as described above. These various rows can be parallel to one another as shown diagrammatically in FIGS. 6A, 6B, and 6C, the rows being able moreover to be arranged with respect to each other so that the tubes are arranged in staggered rows (fig. 6A) or aligned from one row to another (fig. 6B and 6C).
  • the strips of expanded metal which are at the base of the rows of tubes of the devices of the invention can be made up of various metals having various properties, for example thermal conductivity, mechanical resistance , or corrosion resistance.
  • the fluid circulating in the tubes can more particularly be a liquid to be heated or cooled, the fluid circulating outside the tubes can more particularly be air to be cooled or heated, respectively.
  • each of the two fluids will be adapted to the types of exchange considered.
  • the fluid circulating in the tubes must be brought there and be evacuated by a distribution system and by an appropriate collection system.
  • the entire exchange structure may be placed in a sealed enclosure 16 provided with a supply pipe 17 and a discharge pipe 18 for the fluid which must circulate outside the tubes, as shown in FIG. 7.
  • the supply and discharge means of the fluid flowing in the tubes consists of conduits 19 and 20 connected respectively to the two faces 21 and 22 of the enclosure 16, perpendicular to the direction of the tubes 23, said faces 21 and 22 being pierced with holes 24 for communication with the tubes 23 which, in this way, pass through said enclosure 16 right through.

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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)

Claims (10)

  1. Wärmeaustauscher eine Vielzahl von im wesentlichen parallelen Rohren umfassend, die in wenigstens einer Reihe einander zugeordnet und zur Zirkulation eines ersten am Wärmeaustausch teilnehmenden Fluids bestimmt sein können, wobei ein zweites Fluid am Austausch, zirkulierend außerhalb dieser Rohre in einer Richtung im wesentlichen senkrecht zur Richtung der Rohre, teilnimmt, wobei jedes Rohr einer Reihe mit den benachbarten Rohren der gleichen Reihe durch eine Platte aus Streckmetall verbunden ist, die fest oder an jedem der beiden Rohre, die sie verbindet längs einer Erzeugenden hiervon festgemacht ist, daß diese diese Rohre verbindenden Platten aus einem einzigen Stück von einem Ende zum anderen ein und dergleichen Reihe von Rohren gebildet sind und daß dieses Bauteil aus einem Band 1 besteht, das nach einer Lochung Querschlitze erzeugt, gefolgt von einer Erstrekkung in Längsrichtung, wobei eine abwechselnde Anordnung von perforierten Teilen 2 und nicht perforierten Teilen 3 dazu dient, Rohrteile zu bilden, wobei der Austauscher sich dadurch auszeichnet, daß für jede Reihe von Rohren die nicht perforierten Teile dieses Bandes 1 in Form von halbzylindrischen Flächen gebracht werden, welche Halbrohre 6 bilden, gegenüber denen in dichtem Kontakt komplementäre Halbrohre 7, die getrennt gefertigt wurden, angeordnet sind.
  2. Austauscher nach Anspruch 1, dadurch gekennzeichnet, daß eine Reihe von Rohren dadurch gebildet ist, daß zwei Bänder 8 und 9 einander gegenübergestellt werden, die je perforierte Teile 10 und 11 und nicht perforierte Teile 12 und 13 aufweisen, wobei diese nicht perforierten Teile 12 und 13 je in Form von Halbrohren 14 und 15 in dichtem Kontakt einander gegenüber angeordnet sind und diese perforierten Teile 10 und 11 der sich gegenüberstehenden Bänder 8 und 9 voneinander getrennt sind.
  3. Austauscher nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Reihen von Rohren im wesentlichen parallel sind, wobei diese Rohre schachbrettartig angeordnet sind.
  4. Austauscher nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Reihen von Rohren im wesentlichen parallel sind, wobei die Rohre von einer Reihe zur anderen ausgerichtet sind bzw. fluchten.
  5. Austauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er im übrigen Mittel zum Zuführen und Abführen für das in den Rohren zirkulierende Fluid umfaßt.
  6. Austauscher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Austauscherstruktur in einer dichten Kammer 16 eingesetzt ist, die mit einer Zuführungsleitung 17 und einer Abführungsleitung 18 für das außerhalb der Rohre 23 zirkulierende Fluid sowie einer Zuführungsleitung 19 und einer Abzugsleitung 20 für das in den Rohren 23 zirkulierende Fluid versehen ist, wobei diese Leitungen 19 und 20 jeweils mit den Flächen 21 und 22 dieser Kammer 16 senkrecht zur Richtung der Rohre 23 versehen sind, und diese Flächen 21 und 22 von Löchern 24 durchbohrt sind, die mit dem Inneren der Rohre 23 in Verbindung stehen, welche diese Kammer 16 zu beiden Seiten durchsetzen.
  7. Verfahren zur Herstellung einer Wärmeaustauscherstruktur nach einem der Ansprüche 1 bis 6, umfassend die Herstellung einer Reihe von Rohren für das Eindrücken oder die Lochung eines metallischen Bandes 1 in verschiedenen Teilen hiervon, derart, daß Querschlitze gebildet werden und sie in Längsrichtung verstreckt wird, derart, daß perforierte Teile 2 abwechselnd mit nicht perforierten Teilen 3 gebildet werden und dann im wesentlichen halbzylindrische Flächen dieser nicht perforierten Teile 3 durch Tiefziehen geformt werden, wobei dieses Verfahren sich dadurch auszeichnet, daß jede dieser halbzylindrischen Flächen ein Halbrohr 6 bildet, gegenüber dem man in dichtem Kontakt ein komplementäres getrennt gefertigtes Halbrohr 7 anordnet.
  8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß der dichte Kontakt dieser Halbrohre 6 und 7 durch Schweißen, Löten, Kleben und/oder durch Klemmen bzw. Einspannen unter Zwischenschaltung von Dichtungen zwischen die Ränder dieser Halbrohre 6 und 7 sichergestellt ist.
  9. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß zwei geformte Bänder 8 und 9 einander gegenüber derart zugeordnet werden, daß ihre halbzylindrischen Halbrohre 14 und 15 bildenden Flächen in dichtem Kontakt miteinander über ihre Randteile kommen und daß deren jeweilige perforierte Teile 10 und 11 unter Abstand zueinander vorgesehen sind.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß der dichte Kontakt der Halbrohre 14 und 15 durch Schweißen, Löten, Kleben oder durch Einspannen oder durch Einschnüren unter Zwischenschaltung von Dichtungen zwischen den Rändern dieser Halbrohre 14 und 15 sichergestellt wird.
EP19910402881 1990-10-22 1991-10-28 Wärmeaustauscher mit Rohren, die durch Streckmetall verbunden sind Expired - Lifetime EP0539638B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1991627199 DE69127199T2 (de) 1991-10-28 1991-10-28 Wärmeaustauscher mit Rohren, die durch Streckmetall verbunden sind

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9013161A FR2668250B1 (fr) 1990-10-22 1990-10-22 Echangeur de chaleur a tubes relies par des plaques de metal deploye.

Publications (2)

Publication Number Publication Date
EP0539638A1 EP0539638A1 (de) 1993-05-05
EP0539638B1 true EP0539638B1 (de) 1997-08-06

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EP19910402881 Expired - Lifetime EP0539638B1 (de) 1990-10-22 1991-10-28 Wärmeaustauscher mit Rohren, die durch Streckmetall verbunden sind

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EP (1) EP0539638B1 (de)
FR (1) FR2668250B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618186A (ja) * 1992-07-03 1994-01-25 Daikin Ind Ltd 熱交換器およびその製造方法
US5398752A (en) * 1993-08-19 1995-03-21 Abbott; Roy W. Strip fin and tube heat exchanger
JPH07305986A (ja) * 1994-05-16 1995-11-21 Sanden Corp 多管式熱交換器
JPH07310992A (ja) * 1994-05-16 1995-11-28 Sanden Corp 多管式熱交換器
DE19702440A1 (de) * 1997-01-24 1998-07-30 Behr Gmbh & Co Kraftstoffkühler
FR2774635B1 (fr) * 1998-02-09 2000-04-21 Valeo Thermique Moteur Sa Dispositif de refroidissement du carburant d'un moteur de vehicule automobile
CN102183166B (zh) * 2011-04-25 2012-05-30 福建龙净环保股份有限公司 换热管和烟气换热器
WO2017004061A1 (en) 2015-06-29 2017-01-05 Carrier Corporation Microtube heat exchanger
FR3038975B1 (fr) * 2015-07-17 2019-08-09 Valeo Systemes Thermiques Echangeur de chaleur a ailettes ameliorees

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676001A (en) * 1950-09-05 1954-04-20 Rudy Mfg Company Plate type heat exchange unit providing edge radiation
FR1280498A (fr) * 1962-04-12 1961-12-29 Aluminium U Metallwarenfabrik échangeur de chaleur
FR1328214A (fr) * 1962-07-09 1963-05-24 Procédé de fabrication de jeux ou batteries de tubes formés de deux tôles ondulées préfabriquées
FR1524182A (fr) * 1967-02-24 1968-05-10 Rubanox Soc Perfectionnements aux échangeurs thermiques à ailettes
GB1340174A (en) * 1971-02-01 1973-12-12 American Air Filter Co Fluid filter
SE7508256L (sv) * 1975-07-18 1977-01-19 Munters Ab Carl Sett att framstella en vermevexlarkorpp for rekuperativa vexlare
US4071934A (en) * 1975-10-17 1978-02-07 Brazeway, Inc. CFT Box fin
DE3121267A1 (de) * 1981-05-29 1982-12-23 Thermal-Werke, Wärme-, Kälte-, Klimatechnik GmbH, 6909 Walldorf Waermetauscher

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Publication number Publication date
EP0539638A1 (de) 1993-05-05
FR2668250B1 (fr) 1997-01-10
FR2668250A1 (fr) 1992-04-24

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