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EP1785687B1 - Echangeur de chaleur a plaques soudé - Google Patents

Echangeur de chaleur a plaques soudé Download PDF

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Publication number
EP1785687B1
EP1785687B1 EP20060021302 EP06021302A EP1785687B1 EP 1785687 B1 EP1785687 B1 EP 1785687B1 EP 20060021302 EP20060021302 EP 20060021302 EP 06021302 A EP06021302 A EP 06021302A EP 1785687 B1 EP1785687 B1 EP 1785687B1
Authority
EP
European Patent Office
Prior art keywords
plate
heat exchanger
connection
brazed
plates
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.)
Ceased
Application number
EP20060021302
Other languages
German (de)
English (en)
Other versions
EP1785687A1 (fr
EP1785687B2 (fr
Inventor
Thomas Dipl.-Ing. Ritter
Rainer Dipl.-Ing. Glück
Alfredo Ghidini
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 Manufacturing Co
Original Assignee
Modine Manufacturing Co
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
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Application filed by Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of EP1785687A1 publication Critical patent/EP1785687A1/fr
Publication of EP1785687B1 publication Critical patent/EP1785687B1/fr
Application granted granted Critical
Publication of EP1785687B2 publication Critical patent/EP1785687B2/fr
Ceased 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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • 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
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • 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
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers
    • 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

Definitions

  • the invention relates to a brazed plate heat exchanger with the features of the preamble of claim 1.
  • the generic term corresponds to the heat exchanger, which consists of the US 2003 / 0070793A1 is known. From the EP 0 347 961 A1 another soldered plate heat exchanger is known, which has some features of the preamble. Furthermore, go out of the DE 195 39 255 A1 as well as from the US 2003 / 0159807A1 further plate heat exchanger out.
  • the heat exchangers in the cited publications can be improved with regard to their manufacturability.
  • a plate heat exchanger is also from the DE 198 05 439B4 and from a number of other publications known.
  • the connection piece with the connection plate is first to be connected to a unit by means of forming operations before the pre-assembly of the plate heat exchanger, consisting of the heat exchanger plates, the assembly, as well as cover and base plate or connection plate, etc. can begin.
  • the plate heat exchanger is soldered in a soldering oven.
  • the object of the invention is to propose a brazed plate heat exchanger whose production costs, in particular in the pre-assembly, is reduced.
  • the edge of the opening has a reduction in plate thickness
  • the terminal portion of the terminal is disposed in the area of the reduced plate thickness, with the reduction of the plate thickness formed on the side of the terminal plate facing or facing away from the plate heat exchanger.
  • a prior fixation of the connection piece is made.
  • the pre-assembly of the plate heat exchanger can thus be done without prior creation of a unit of pipe and connection plate, whereby the manufacturing cost was lowered.
  • the deformation of the connecting piece from the preferred first alternative which is advantageous.
  • too no dome-like deformation of the terminal plate - as in the prior art - required which also with this alternative, the manufacturing cost, including the cost of forming heard, can be reduced.
  • connection piece has an anti-twist protection consisting of correlating deformations on the connection plate and on the connection piece. This may be, for example, shaped nubs or a free cut in the connection area, which corresponds to the shaping of the reduced board thickness range.
  • the items of the brazed plate heat exchanger according to the invention are preferably made of an aluminum material has the favorable forming properties. However, the use of other metallic materials is not excluded.
  • the degree of reduction of the plate thickness corresponds approximately to the extent of the wall thickness of the connection piece in the connection area, so that the connection area of the connection piece lies approximately at the level of the surface of the connection plate or has only a slight offset in the level.
  • This design has the advantage that the heat exchanger plate applied there can be well attached with its opening.
  • the heat exchanger plates of the plate heat exchangers discussed here have openings which form vertical flow channels in the stack of heat exchanger plates for the entry or exit of the corresponding media, which flow in and out through the connecting piece.
  • the connection region of the connecting piece extends in a flange around the wall of the connection piece and projects approximately at right angles from it.
  • the wall thickness of the connection area of the connection piece can be smaller than the wall thickness in the remaining area of the connection piece.
  • connection plate The reduction of the plate thickness at the edge of the opening should preferably be provided on the side of the connection plate, which points to the plate heat exchanger.
  • fastening measures are avoided because the connection area of the connecting piece comes to lie against the adjacent heat exchanger plate in the course of the pre-assembly.
  • connection plate is an approximately flat plate, which, however, may have a raised edge as needed.
  • fastening measures in the form of punctiform impressions between the connection area of the connecting piece and the edge of the opening may be necessary in order to pre-fix the connecting piece and to carry out the soldering process.
  • connection plate has at least two indentations which project in the direction of the heat exchanger plate.
  • the voltage applied to the connection plate heat exchanger plate has at least two holes which receive the indentations in order to achieve a position assurance of the heat exchanger plates with the connection plate.
  • connection plate heat exchanger plate is thicker than the other heat exchanger plates to improve the strength of the heat exchanger against vibration.
  • connection plate may be formed of several, for example, two identical brazed plates (double plate), which has proven to be advantageous for manufacturing reasons.
  • double plate two identical brazed plates
  • the reduced wall thickness in the opening edge is created by different opening diameters in the plates. Otherwise, the reduced wall thickness can be created for example by blanking or pressing.
  • connection plate has fastening openings for fastening the plate heat exchanger.
  • the heat exchanger plates have trough shape and are stacked one inside the other.
  • the connecting piece has in its wegstrebenden from the connection portion no on the use depth of the connecting piece limiting stop area in its wall, which is otherwise required in many solutions from the prior art.
  • the Fig. 1 shows a plan view of a heat exchanger.
  • the FIGS. 2 and 3 show sections through the heat exchanger according to the names given there.
  • the Fig. 4a shows a part of the Fig. 4 to demonstrate a further development described below.
  • the Fig. 5 shows a section of a heat exchanger in the form of a sketch in an alternative design.
  • Soldered plate heat exchangers consequently consist of solderable metals, with aluminum plates suitably coated with solder material being the preferred choice.
  • Extremely thin-walled, trough-shaped heat exchanger plates 1 are stacked in one another, so that their bottoms have a certain distance from each other.
  • a flow channel 70, 80 is formed for oil or for a liquid heat exchange medium.
  • Such flow channels 70, 80 are known to alternate, as well as in the Fig. 5 has been indicated. They are equipped in a manner not shown either with heat exchange ribs or with deformations of the soil to improve the heat exchange.
  • a connection plate 5 is known to be arranged, which is thicker than the heat exchanger plates 1 in order to take over different attachment functions.
  • the terminal plate 5 and the heat exchanger plates 1, 11 have circular openings, which were generally marked with the reference numeral 3 .
  • these openings 3 then each form a supply or discharge channel, which has been generally designated 30 and of which a total of four are present.
  • the supply or discharge channels 30 are in hydraulic communication with the flow channels 70 and 80, as well as from Fig. 5 can be seen, and as it has long been part of the state of the art.
  • the flow channels 80 were closed with respect to the supply or discharge channel 30 .
  • the other flow channels 70 are open there. The manner of the mentioned closure often takes place by appropriate deformation of the opening edges.
  • connection plate 5 heat exchanger plate was made slightly thicker than the other heat exchanger plates 1, which is why the reference numeral 11 was used.
  • FIG. 1 were marked with the reference numeral 53 breakthroughs in the connection plate 5 , by means of which the already mentioned attachment of the entire plate heat exchanger should be made.
  • Another attachment function of the connection plate 5 is that for the connection piece 2. The manner of this attachment will be described in more detail below.
  • the attachment of the connecting piece 2 is formed at the lower or upper connecting plate 5, that the reduction of the plate thickness p at the edge 33 of the opening 3 on the side 55 of the terminal plate 5 is provided, which is turned to the plate heat exchanger.
  • connection piece 2 is inserted through the opening 3 in the connection plate 5 so that it comes to lie with its connection region 22 in the region of the reduced plate thickness p at the opening edge 33 or abuts there.
  • Fig. 5 made the mentioned reduction on the other side 56 of the connection plate 5 , which points away from the plate heat exchanger.
  • the reduction of the plate thickness p is made in these cases by a forming process, for example by area embossing.
  • the connecting piece 2 must not be inserted through the opening 3 , but it can be recognized from the outside with its connection region 22 in the region of the reduced plate thickness p . So that it remains prefixed in its position until the soldering process is completed, for example, two embossing points 20 are mounted between the connection region 22 and the opening edge 33 in the connection plate 2 .
  • the impressing points 20 are also effective as anti-rotation and in the Fig. 1 recognizable because the area of one of the connecting pieces 2 has been broken out and is visible.
  • a hedge against falling out of the connecting piece 2 is in the Fig. 1 on the other hand not required, since the falling out by means of the plate stack is to be prevented.
  • FIGS. 2 and 3 is another development recognizable that supports the simplified pre-assembly of the items of the plate heat exchanger.
  • connection plate 2 On the connection plate 2 , two inwardly directed indentations 51 have been formed, which engage in holes 12 or in corresponding impressions 12 in the lowermost, somewhat thicker heat exchanger plate 11 . The slippage of the stack of heat exchanger plates on the connection plate 2 is thereby prevented.
  • the 4 and 4a also show a development and thus do not completely correspond to the drawn section GG from the Fig. 1 , A dashed line in the Fig.
  • connection plate 5 may consist of an upper plate 5.1 and a lower plate 5.2 (double plate), which are identical in terms of their outer shape and are joined together.
  • the Fig. 4a shows a broken out plan view of the formed as a double plate connection plate 5 in the region of an opening 3, in which the connecting piece 2 is used.
  • the reduction of the plate thickness p in the opening edge 33 was not provided by embossing or pressing, but by the lower plate 5.2 having an opening diameter d smaller than the opening diameter D in the upper plate 5.1.
  • top and bottom are interchangeable, the different opening diameter D, d.
  • the number of plates need not be limited to two.
  • the degree of reduction of the plate thickness p corresponds to the dimension of the wall thickness of the connection piece 2 in the connection region 22 , so that the connection region 22 of the connection piece 2 terminates with the level of the surface of the connection plate 5 .
  • a slight offset in the level is present, the dimensions mentioned are different.
  • connection region 22 of the connecting piece 2 extends approximately at right angles from the wall of the connecting piece 2, without a limitation thereon directed to be intended.
  • the wall thickness in the connection region 22 of the connecting piece 2 can be compared the wall thickness of the connecting piece 2 in other areas are also reduced.
  • Such connecting pieces 2 can be produced by means of known methods of forming technology.

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

Claims (9)

  1. Échangeur de chaleur à plaques brasé composé de plaques d'échangeur de chaleur (1), avec un manchon de raccordement (2) disposé dans une ouverture (3) d'une plaque de raccordement (5) de l'échangeur de chaleur à plaques, ladite plaque présentant une épaisseur de plaque (p) définie, le bord (33) de l'ouverture (3) et une zone de raccordement (22) du manchon de raccordement (2) étant formés autour ;
    le bord (33) de l'ouverture (3) présentant une réduction de l'épaisseur de plaque (p) et la zone de raccordement (22) du manchon de raccordement (2) étant disposée dans la région de l'épaisseur de plaque (p) réduite, la réduction de l'épaisseur de plaque (p) étant réalisée soit sur un des côtés (55) de la plaque de raccordement (5) orienté vers l'échangeur de chaleur à plaques soit sur l'autre côté (56) de la plaque de raccordement (5) opposé par rapport à l'échangeur de chaleur à plaques, la dimension de la réduction de l'épaisseur de plaque (p) correspondant soit approximativement à la dimension de l'épaisseur de la zone de raccordement du manchon de raccordement soit présentant un décalage limité par rapport au niveau, de sorte que les dimensions évoquées diffèrent ; caractérisé en ce que le manchon de raccordement (2) comporte une sécurité antitorsion (20) se composant des déformations correspondantes au niveau du bord d'ouverture (33) de la plaque de raccordement (5) et au niveau du manchon de raccordement (2).
  2. Échangeur de chaleur à plaques brasé selon la revendication 1, caractérisé en ce que la zone de raccordement (22) du manchon de raccordement (2) s'étend à la façon d'une bride et de préférence en s'écartant approximativement à angle droit de la paroi (21) du manchon de raccordement (2).
  3. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque de raccordement (5) est pour le reste soit au moins principalement approximativement plane soit seulement une bordure périphérique remontée.
  4. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque d'échangeur de chaleur (11) reposant au niveau de la plaque de raccordement (5) est plus épaisse que les plaques d'échangeur de chaleur (1) restantes.
  5. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque de raccordement (5) comporte au moins deux inclusions (51) saillant en direction des plaques d'échangeur de chaleur (11, 1) et que la plaque d'échangeur de chaleur reposant au niveau de la plaque de raccordement (5) comporte au moins deux trous (12) ou détourés recevant les inclusions (51), pour garantir une protection de maintien de position des plaques d'échangeur de chaleur (11, 1) sur la plaque de raccordement (5).
  6. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque de raccordement (5) se compose de plusieurs plaques, par exemple sous la forme d'une plaque double, et le diamètre d'ouverture (D, d) étant différent dans les plaques, le bord d'ouverture (33) atteignant ainsi l'épaisseur de plaque (p) réduite.
  7. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque de raccordement (5) comporte des ouvertures de fixation (53) permettant de fixer l'échangeur de chaleur à plaques.
  8. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que les plaques d'échangeur de chaleur (11, 1) sont réalisées en forme de baquet et empilées les unes dans les autres.
  9. Échangeur de chaleur à plaques brasé selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone de raccordement (22) du manchon de raccordement (2) forme une butée au niveau du bord (33) de l'ouverture (3), de sorte que la présence de déformations supplémentaires formant des butées est superflue dans la paroi (21) du manchon de raccordement (2).
EP06021302.2A 2005-11-12 2006-10-11 Echangeur de chaleur a plaques soudé Ceased EP1785687B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510054045 DE102005054045A1 (de) 2005-11-12 2005-11-12 Gelöteter Plattenwärmetauscher

Publications (3)

Publication Number Publication Date
EP1785687A1 EP1785687A1 (fr) 2007-05-16
EP1785687B1 true EP1785687B1 (fr) 2013-04-10
EP1785687B2 EP1785687B2 (fr) 2016-07-06

Family

ID=37682568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06021302.2A Ceased EP1785687B2 (fr) 2005-11-12 2006-10-11 Echangeur de chaleur a plaques soudé

Country Status (2)

Country Link
EP (1) EP1785687B2 (fr)
DE (1) DE102005054045A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304733A1 (de) * 2003-02-06 2004-08-19 Modine Manufacturing Co., Racine Plattenwärmetauscher
DE102014203102A1 (de) * 2014-02-20 2015-08-20 MAHLE Behr GmbH & Co. KG Plattenwärmetauscher für ein Elektrokraftfahrzeug

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3564340D1 (en) * 1985-05-29 1988-09-15 Sigri Gmbh Procedure for manufacturing a plate heat exchanger
US4872578A (en) * 1988-06-20 1989-10-10 Itt Standard Of Itt Corporation Plate type heat exchanger
DE69223986T2 (de) * 1991-11-15 1998-06-04 Long Mfg. Ltd., Oakville, Ontario Ölkühler in einem tank
JPH07318289A (ja) * 1994-05-23 1995-12-08 Nippondenso Co Ltd 熱交換器
DE19539255A1 (de) * 1995-10-21 1997-04-24 Laengerer & Reich Gmbh & Co Kühler mit Filteranschluß
DE19805439B4 (de) * 1998-02-11 2005-06-23 Behr Gmbh & Co. Kg Verfahren zur Herstellung eines Stapelscheibenwärmeübertragers und dadurch hergestellter Wärmeübertrager
US20030070793A1 (en) * 2001-10-15 2003-04-17 Dierbeck Robert F. Heat exchanger assembly with dissimilar metal connection capability
US7036562B2 (en) * 2002-02-26 2006-05-02 Honeywell International, Inc. Heat exchanger with core and support structure coupling for reduced thermal stress
DE20210209U1 (de) * 2002-06-28 2003-11-06 Autokühler GmbH & Co. KG, 34369 Hofgeismar Wärmeaustauschernetz
DE10304733A1 (de) * 2003-02-06 2004-08-19 Modine Manufacturing Co., Racine Plattenwärmetauscher
DE10347181B4 (de) * 2003-10-10 2005-12-22 Modine Manufacturing Co., Racine Wärmetauscher, insbesondere Ölkühler

Also Published As

Publication number Publication date
EP1785687A1 (fr) 2007-05-16
DE102005054045A1 (de) 2007-05-16
EP1785687B2 (fr) 2016-07-06

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