EP0660064B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0660064B1
EP0660064B1 EP94118838A EP94118838A EP0660064B1 EP 0660064 B1 EP0660064 B1 EP 0660064B1 EP 94118838 A EP94118838 A EP 94118838A EP 94118838 A EP94118838 A EP 94118838A EP 0660064 B1 EP0660064 B1 EP 0660064B1
Authority
EP
European Patent Office
Prior art keywords
tube
plate
heat exchanger
tubes
welded seam
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
EP94118838A
Other languages
German (de)
English (en)
Other versions
EP0660064A2 (fr
EP0660064A3 (fr
Inventor
Herbert Dr. Damsohn
Albert Schmitz
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6505763&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0660064(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0660064A2 publication Critical patent/EP0660064A2/fr
Publication of EP0660064A3 publication Critical patent/EP0660064A3/fr
Application granted granted Critical
Publication of EP0660064B1 publication Critical patent/EP0660064B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding

Definitions

  • the invention relates to a Heat exchanger according to the preamble of claim 1, and a method of manufacturing the heat exchanger.
  • a heat exchanger of the type mentioned is out FR-A 2 121 757, where one possibility is described is cylindrical tubes in tube sheets of heat exchangers weld that into the openings of the tube sheets or if the tubes are pushed through to one end of the tube sheets are, in extensions of the pipes, a rotating one Electrode acts on an arc weld carries out and the melted and usually additionally supplied Material then forms a weld that both in the inner wall of the tube as well as in the surface of the Tube sheet leaks. Have the tube sheets used there but a strength that is significantly more than ten times that Thickness of the tube wall is. Such arc welds would look at thinner tube sheets, especially if they were made from Aluminum, do not allow to be carried out.
  • DE 30 36 427 A1 describes a laser beam reflection system known with which it is possible to get one out to rotate an existing laser beam head mirror arrangement and therefore a circular weld with any diameter to manufacture.
  • DE 30 36 427 A1 describes a laser beam reflection system known with which it is possible to get one out to rotate an existing laser beam head mirror arrangement and therefore a circular weld with any diameter to manufacture.
  • the invention is therefore based on the object of a heat exchanger of the type mentioned at the beginning that the requirements for mechanical stability and tightness of the pipe-floor connection are met are, even if the dimensions of pipes and tube sheets are very small for weight reasons. Furthermore, a Methods of manufacturing the heat exchanger can be specified.
  • the openings in the tube sheet are initially designed so that the Pipe ends kept largely gap-free in the openings are that the pipe ends are then in their assigned openings be inserted so that they are flush with the one at the collecting room adjoining side of the tube sheet, and that then laser welding through one along the circumference of the Tube ends guided laser beam takes place. That laser beam processes one pipe after the other and becomes this Purpose according to the dimensions of the tube sheet and the Pipes from pipe to pipe and then according to the circumference of the Pipe along.
  • the Joining gap between the pipe ends and the assigned openings of the tube sheet is smaller than 0.1mm all around.
  • the laser welding can also be done under protective gas, with a pulsed ND / YAG laser.
  • the tubes (1) are with this tube sheet (2) along a their entire circumference weld (3) with the Tube plate (2) connected, which, as shown in Fig. 3, a has oval cross section with pointed ends, the Longitudinal axis (5) at about 45 ° to the tube sheet (2) and to Pipe axes (4) runs.
  • the weld seam (3) by a Laser beam generated extends from one Not shown collection room facing the heat exchange medium Side (2a) of the tube sheet (2) to below it Underside (2b). It has a rounded, the pipe mouth facing inner contour (6), each tangent in the Side wall (2a) of the tube sheet (2) or into the inner wall (1a) the pipes (1) pass over.
  • the weld seam therefore forms a kind Inlet funnel at the mouth of the pipes. It is pending nowhere on the inner wall (2a).
  • the weld seam then receives that in FIG. 3 shown shape. It is at point (8), measured under one Angle of 45 ° the bisector between the bottom (2b) of the tube sheet (2) and the outer wall of the tube sheet (1) occupies greater than the wall thickness (s) of the tube (1); (a) is therefore greater than (s).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laser Beam Processing (AREA)

Claims (10)

  1. Echangeur de chaleur, en particulier pour un radiateur pour moteurs de véhicules automobiles, comprenant un faisceau de tubes parcouru par un milieu d'échange de chaleur, possédant des tubes (1) qui s'étendent parallèlement entre eux, qui sont tenus au moins à une extrémité, dans un fond tubulaire (2) qui est limitrophe d'une chambre collectrice, et sont reliés à joint étanche à ce fond, les extrémités des tubes qui sont engagées dans le fond tubulaire (2) étant soudées au fond tubulaire par un joint soudé (3) qui s'étend le long de tout leur périmètre, et dont le profil intérieur (6) se termine à l'affleurement de la paroi intérieure (1a) du tube et à l'affleurement de la face (2a) du fond tubulaire (2) qui est dirigée vers l'intérieur de la chambre collectrice, caractérisé en ce que les tubes (1) sont des tubes plats et sont composés d'aluminium, comme le fond tubulaire (2), et en ce que le joint soudé (3) est un joint soudé au laser qui se prolonge jusque dans une région du tube (1) qui se trouve à distance de la face (2b) du fond tubulaire (2) qui est à l'opposé de la chambre collectrice.
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les axes (4) de tous les tubes (1) s'étendent perpendiculairement au fond tubulaire (2) et le joint soudé (3) présente une section de la forme d'un ovale dont l'axe longitudinal (5) est incliné d'environ 45° sur l'axe (4) du tube.
  3. Echangeur de chaleur selon une des revendications 1 ou 2, caractérisé en ce que le joint soudé (3) présente une épaisseur (a), mesurée selon un angle de 45° au point d'intersection entre la paroi extérieure du tube et la face inférieure (2b) du fond tubulaire, qui est supérieure à l'épaisseur (s) de la paroi du tube.
  4. Echangeur de chaleur selon une des revendications 1 à 3, caractérisé en ce que le profil intérieur (6) du joint soudé (3) est arrondi, de sorte qu'il se forme une sorte d'entonnoir d'entrée à l'embouchure du tube.
  5. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les tubes (1) possèdent une section ovale ou elliptique.
  6. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les tubes (1) sont constitués par des profilés à chambres multiples à section plate.
  7. Procédé de fabrication d'un échangeur de chaleur selon la revendication 1 ou l'une des autres revendications 2 à 6, caractérisé en ce que les ouvertures (7) formées dans le fond tubulaire (2) sont calculées de manière que les extrémités des tubes soient maintenues pratiquement sans fente libre dans les ouvertures, en ce que les extrémités des tubes sont engagées dans leurs ouvertures (7) respectives de manière à se trouver à l'affleurement de la face (2a) du fond tubulaire (2) qui est limitrophe de la chambre collectrice, et en ce que, ensuite, le soudage au laser est réalisé au moyen d'un rayon laser qu'on fait circuler le long du périmètre des extrémités des tubes.
  8. Procédé selon la revendication 7, caractérisé en ce que la fente de joint (f) entre les extrémités des tubes et les ouvertures (7) correspondantes du fond tubulaire (2) est inférieure à 0,1 mm sur tout le tour.
  9. Procédé selon la revendication 7, caractérisé en ce que le soudage s'effectue sous gaz protecteur.
  10. Procédé selon la revendication 7, caractérisé en ce que le soudage s'effectue à l'aide d'un laser ND-YAG pulsé.
EP94118838A 1993-12-22 1994-11-30 Echangeur de chaleur Expired - Lifetime EP0660064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4343825A DE4343825A1 (de) 1993-12-22 1993-12-22 Rohr-Bodenverbindung für einen Wärmetauscher
DE4343825 1993-12-22

Publications (3)

Publication Number Publication Date
EP0660064A2 EP0660064A2 (fr) 1995-06-28
EP0660064A3 EP0660064A3 (fr) 1995-11-29
EP0660064B1 true EP0660064B1 (fr) 1998-05-27

Family

ID=6505763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118838A Expired - Lifetime EP0660064B1 (fr) 1993-12-22 1994-11-30 Echangeur de chaleur

Country Status (4)

Country Link
US (1) US5749414A (fr)
EP (1) EP0660064B1 (fr)
DE (2) DE4343825A1 (fr)
ES (1) ES2116515T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032975A1 (de) * 2000-07-06 2002-01-17 Behr Gmbh & Co Verfahren zum Hartlöten von Aluminiumteilen

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DE19810387C1 (de) * 1998-03-11 1999-07-29 Autz & Herrmann Maschf Bogenleiteinrichtung
DE19849449C2 (de) * 1998-10-28 2003-05-28 Hanf Carl Elino Ind Ofenbau Verfahren und Anlage zum Verbinden von Wärmetauscherteilen
AT411396B (de) * 1999-06-01 2003-12-29 Schoeller Bleckmann Nooter App Wärmetauscher und verfahren zum anschweissen von wärmetauscherrohren an einer rohrplatte
AU4090600A (en) 1999-06-30 2001-01-04 Rohm And Haas Company High performance heat exchangers
US6913056B2 (en) * 2002-01-31 2005-07-05 Baxter International Inc. Apparatus and method for connecting and disconnecting flexible tubing
US20040040698A1 (en) * 2002-08-30 2004-03-04 Jay Korth Flat-round joint in a "CT" or "Serpentine" fin core
US7275543B2 (en) * 2002-09-20 2007-10-02 Baxter International Inc. Coupler member for joining dissimilar materials
DE10349140A1 (de) * 2003-10-17 2005-05-12 Behr Gmbh & Co Kg Wärmeübertrager, insbesondere für Kraftfahrzeuge
DE102004001787A1 (de) * 2004-01-12 2005-12-22 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Abgaswärmeübertrager für Kraftfahrzeuge
US7722733B2 (en) * 2004-03-29 2010-05-25 Baxter International Inc. Method for sterile connection of tubing
FR2889582B1 (fr) * 2005-08-04 2010-12-31 Thermi Consult Echangeur tubulaire de chaleur
AT9199U1 (de) * 2005-09-13 2007-06-15 Plansee Se Werkstoffverbund mit explosionsgeschweisstem zwischenstück
EP1957928B1 (fr) * 2005-12-09 2012-02-01 Siemens Canada Limited Refroidisseur intermediaire en plastique soude au laser
DE102006003317B4 (de) * 2006-01-23 2008-10-02 Alstom Technology Ltd. Rohrbündel-Wärmetauscher
DE112007000978A5 (de) * 2006-12-08 2009-04-09 Mahle International Gmbh Laserschweissverfahren
US9101997B2 (en) * 2008-09-11 2015-08-11 Siemens Energy, Inc Asymmetric heat sink welding using a penetration enhancing compound
DE102010039062A1 (de) * 2010-08-09 2012-02-09 Behr Gmbh & Co. Kg Verfahren zur Herstellung eines Wärmeübertragungsrohres für einen Wärmetauscher, insbesondere eines Kraftfahrzeuges
JP6132130B2 (ja) * 2012-11-30 2017-05-24 株式会社ノーリツ 熱交換器の製造方法
DK177774B1 (en) * 2013-04-11 2014-06-23 Spx Flow Technology Danmark As HYGIENIC HEAT EXCHANGE AND METHOD FOR PREPARING A HYGIENIC HEAT EXCHANGE
WO2015031245A1 (fr) * 2013-08-26 2015-03-05 Lockheed Martin Corporation Procédé de soudage par friction-malaxage d'un tube sur un élément à l'aide d'une enclume tubulaire, structure fabriquée selon ledit procédé
AU2015283806B2 (en) * 2014-06-30 2020-02-20 Sunspin Pty Ltd A method of forming a sealed joint between a tubular article and a sheet article
EP3334994B1 (fr) * 2015-08-11 2020-07-01 Linde GmbH Procede de raccordement de tubes d'un echangeur thermique a faisceau tubulaire a une plaque tubulaire d'un echangeur thermique a faisceau tubulaire
RU2718393C2 (ru) * 2016-01-19 2020-04-02 Линде Акциенгезельшафт Способ соединения трубок кожухотрубного теплообменника с трубной решеткой кожухотрубного теплообменника
DE102016206676A1 (de) * 2016-01-20 2017-07-20 Mahle International Gmbh Verfahren zum Herstellen einer Schweißnaht mittels Laserschweißen

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032975A1 (de) * 2000-07-06 2002-01-17 Behr Gmbh & Co Verfahren zum Hartlöten von Aluminiumteilen
DE10032975B4 (de) * 2000-07-06 2005-09-08 Behr Gmbh & Co. Kg Verfahren zum Hartlöten von Aluminiumteilen

Also Published As

Publication number Publication date
EP0660064A2 (fr) 1995-06-28
EP0660064A3 (fr) 1995-11-29
US5749414A (en) 1998-05-12
DE59406079D1 (de) 1998-07-02
DE4343825A1 (de) 1995-06-29
ES2116515T3 (es) 1998-07-16

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