EP2294348B1 - Kondensator - Google Patents

Kondensator Download PDF

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Publication number
EP2294348B1
EP2294348B1 EP09749869.5A EP09749869A EP2294348B1 EP 2294348 B1 EP2294348 B1 EP 2294348B1 EP 09749869 A EP09749869 A EP 09749869A EP 2294348 B1 EP2294348 B1 EP 2294348B1
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EP
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Prior art keywords
corrugations
plates
fluid
plate
pitch
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EP09749869.5A
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English (en)
French (fr)
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EP2294348A1 (de
Inventor
Anne-Sylvie Magnier-Cathenod
Jean-Sylvain Bernard
Carlos Martins
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Priority to PL09749869T priority Critical patent/PL2294348T3/pl
Publication of EP2294348A1 publication Critical patent/EP2294348A1/de
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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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • 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
    • 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
    • F28D2021/0084—Condensers
    • 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 the field of condensers, in particular for motor vehicles.
  • a condenser of the type comprising an alternating stack of first plates and second plates respectively provided with first undulations and second undulations to define, between the plates, first circulation channels for a first fluid which alternate with second channels. circulation for a second fluid.
  • the first plates and the second plates are provided with aligned through openings which define conduits to allow the first fluid to feed the first circulation channels and the second fluid to feed the second circulation channels.
  • Such a condenser is generally made by soldering by tight assembly of respective raised edges of all the plates.
  • Stack plate condensers are also water condensers, in which a refrigerant is cooled by water, usually the engine cooling water.
  • the plates may have different geometric shapes, for example rectangular, and they are generally provided with reliefs intended to be brazed to each other to ensure the mechanical strength. These reliefs also serve to disturb the circulation of the fluid and to increase the heat exchange surface.
  • the plates used are identical or symmetrical, so that the first circulation channels and the second circulation channels have identical passage sections.
  • the object of the invention is in particular to overcome the aforementioned drawbacks.
  • the invention also aims to provide a condenser of the aforementioned type offering a better resistance to pressure of each of the first channels and the second circulation channels by a suitable configuration of the corrugations.
  • the invention proposes a plate condenser, as defined in the introduction, in which the first corrugations are spaced from each other by a first pitch P 1 , while the second corrugations are distant from each other by a second pitch P 2 , which is different from the first step, which allows the first channels and the second channels to define respectively a first passage section and a second passage section different respectively adapted to the first fluid and the second fluid.
  • This adaptation is thus effected by an appropriate choice of the values of the first step and the second step.
  • the first corrugations are in principle identical to each other and the same is true for the second corrugations, which avoids having to produce different corrugations within the same plate, as is the case in the publication EP 1 630 510 supra.
  • the resistance to pressure of the first and second channels is ensured by making each time pass the corrugations by the neutral line of the respective plates, in particular by providing the corrugations of one and the same side of said neutral line.
  • the condenser 10 shown in FIG. figure 1 comprises an alternating stack of first plate 12 and second plates 14 respectively provided with first undulations 16 and second undulations 18. This stack is comprised between two end plates, namely a bottom plate 20, which is closed, and a plate upper 22, which is provided with two pipes 24 and 26 for the inlet and the outlet of a first fluid F 1 and two other pipes 28 and 30 for the entry and exit of a second fluid F 2 .
  • the first plate 12 ( figure 2 ) comprises a flat bottom 32, in the example of generally rectangular shape, defining a neutral line through which the first undulations 16 pass. All the undulations pass through the bottom 32.
  • these first corrugations 16 propagate in a straight line parallel to a first direction D 1 , which extends obliquely with respect to the sides of the rectangle defined by the bottom 32 of the plate.
  • the corrugations 16 are identical to each other and spaced apart by a first pitch P 1 .
  • the bottom 32 is surrounded by a raised peripheral edge 34, in the form of draft, to allow its assembly to respective raised edges of second adjacent plates, as will be seen later.
  • the bottom of the plate comprises two bosses 36 and 38 provided along a long side of the rectangle and provided with respective openings 40 and 42. These two bosses are flat and raised relative to the plane defined by the bottom 32 of the plate.
  • the bottom 32 has two other openings 44 and 46 along the other long side, the latter being formed directly in the bottom 32 of the plate.
  • the openings 40, 42, 44 and 46 are circular.
  • the second plate 14 is made in a homologous manner. It comprises a flat bottom 48 defining a neutral line through which the second undulations 18 pass. These last propagate in a straight line parallel to a second direction D 2 which extends obliquely with respect to the sides of the rectangle defined by the bottom 48.
  • the corrugations 18 are parallel to each other and spaced apart by a second pitch P 2 which is greater than the pitch P 1 .
  • the plate 14 is surrounded by a raised peripheral edge 50 flush to allow mutual assembly of the plates by interlocking and brazing their respective peripheral edges.
  • the corrugations of said first and second plates have, for example, a height, that is to say a dimension in the direction perpendicular to the extension plane of said plates, identical.
  • the angle of engagement of said plates is thus the same for all the plates.
  • the choice of the height of said peripheral edges is made according to the value of the nesting angle and the material thickness of the plates to allow interlocking with contact of the raised peripheral edges of the adjacent plates during assembly said plates.
  • the height of the corrugations is adapted to ensure contact from one plate to another without limiting the interlocking to ensure a constant nesting angle.
  • the flat bottom 48 has two bosses 52 and 54 provided along a long side of the rectangle and provided with respective openings 56 and 58.
  • the bottom 48 also comprises two openings 60 and 62 arranged along the other long side rectangle, these openings being made directly in the bottom 48.
  • the openings 56, 58, 60 and 62 are made circular.
  • the assembly formed by the first plates and the second plates as well as by the end plates can be assembled by soldering in a single operation.
  • a plurality of alternating channels for the circulation of the first fluid F 1 are thus defined, which alternate with a multiplicity of circulation channels for the fluid F 2 .
  • the tubing 24 is in line with the openings 40 and 60, which are aligned, to define a supply duct.
  • the tubing 26 is in line with the openings 42 and 62, which are aligned, to define a supply duct.
  • the tubing 28 is in line with the openings 46 and 58, which are aligned, to define a supply duct.
  • the tubing 30 is in line with the openings 44 and 56, which are aligned, to define a supply duct.
  • the corrugations 16 of a first plate intersect each other with the undulations 18 of the second adjacent plates, so that the first undulations and the second undulations intersect and come into contact with each other by vertices. respectively.
  • These peaks are brazed during the brazing operation, thus ensuring better mechanical resistance of the plates to pressure.
  • the passage sections defined by the first and second channels are different and can be adapted by appropriate choice of the pitch values P 1 and P 2 .
  • the ratio P 1 / P 2 between the first pitch P 1 and the second pitch P 2 is between 1 and 6 with P 1 P2.
  • this ratio is a fractional number, for example 1 ⁇ 2, 2/3, etc.
  • this ratio is 1 ⁇ 2.
  • the figure 4 is a side view of the heat exchanger 110 of the second embodiment.
  • the figure 5 shows a first plate 112 which is homologous to the plate 12 of the figure 2 , the main difference being that the corrugations 116 are propagated chevron, that is to say that they have V-shaped nested in one another. These corrugations are identical to each other and spaced apart by a pitch P 1 as seen on the figure 5 and as we also see on the cut of the figure 6 .
  • the corrugations 116 pass through the neutral line defined by the bottom 132 of the plate 116.
  • the second plate 114 is not represented in perspective, but only in section on the figure 7 . It comprises second corrugations 118 which propagate in a chevron but with a different orientation than that of the corrugations 116 of the plate 112.
  • the respective chevrons of the plates 112 and L14 propagate in mutually opposite directions so that the first undulations and the second undulations intersect and are in contact by respective vertices.
  • the corrugations 118 are spaced from each other by a second pitch P 2 which, in the example, is twice the pitch P 1 .
  • the ratio P 1 to P 2 is also 1 ⁇ 2 as in the first embodiment.
  • the sectional view of the figure 8 shows the alternating stack of the plates 112 and 114, between a lower plate 120 and an upper plate 122 which carries the tubings 124, 126, 128 and 130 (see also FIG. figure 4 ).
  • the figure 8 also shows the passage sections of the respective traffic channels defined between the plates 112 and 114.
  • the figure 9 shows a first plate 112 with corrugations 116 spaced apart by a pitch P 1 , on which is placed a second plate 114 with corrugations 118 spaced by a pitch P 2 . It can be seen that the corrugations 116 and 118 come into contact with each other by their respective vertices, once in three for the corrugations 116 and once in two for the corrugations 118, thanks to the choice of the ratio P 1 / P 2 . Between the plates 112 and 114 are defined first traffic channels C 1 whose passage section S 1 is materialized by hatching.
  • the figure 10 shows the inverted configuration in which the first plate 112 is disposed above a second plate 114.
  • second circulation channels C 2 whose passage section S 2 is materialized by hatching .
  • the passage section S 1 of the first channels C 1 ( figure 9 ) is greater than the passage section S 2 of the second channels C 2 ( figure 10 ).
  • the values of these passage sections can be varied and adapted to the fluid in question.
  • the refrigerant will be passed through.
  • the weakest passage section ie the C 2 channels ( figure 10 ).
  • the fluid operating at lower pressure here water
  • the water will pass through the largest passage section, that is to say through the passage channels C 1 ( figure 9 ).
  • the water corresponds to the fluid F 1 supplied by the tubing 124 and discharged through the tubing 126
  • the refrigerant then corresponds to the fluid F 2 supplied by the tubing 128 and discharged through the tubing 130.
  • the first passage section S 1 and the second passage section S 2 which is the smallest is adapted to that of the first fluid F 1 and the second fluid F 2 which operates at the highest pressure.
  • the figure 11 shows the brazing surfaces SB 1 enter the plates 112 and 114 in the configuration of the figure 9 while the figure 12 shows the brazing surfaces SB 2 between the first plate 112 and the second plate 114 in the configuration of the figure 10 .
  • surfaces SB 1 of the figure 11 are more limited than the SB 2 surfaces of the figure 12 .
  • the fluid at lower pressure here the fluid F 1 , can be propagated between brazing surfaces SB 1 as represented by the arrow of the figure 11 .
  • brazing surfaces are more limited and the passage sections wider, allowing the passage of a lower pressure fluid.
  • brazing surfaces are wider, which allows a better resistance to pressure for the passage of a fluid at higher pressure.
  • the invention is capable of numerous variants, particularly with regard to the general shape of the plates, the shape and the respective pitch of the corrugations of the different plates.
  • the invention finds a preferential application to condensers for motor vehicles, including condensers traversed by a refrigerant and cooled by water.

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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 (11)

  1. Kondensator, der von einem Kältefluid und von einem Kühlfluid durchquert werden kann, der eine abwechselnde Stapelung von ersten Platten (12; 112) und von zweiten Platten (14; 114) enthält, die mit ersten Welligkeiten (16; 116) bzw. mit zweiten Welligkeiten (18; 118) versehen sind, um zwischen den Platten erste Umlaufkanäle (C1) für ein erstes Fluid (F1) zu definieren, die mit zweiten Umlaufkanälen (C2) für ein zweites Fluid (F2) abwechseln,
    wobei die ersten Welligkeiten (16; 116) einen ersten Abstand (P1) zueinander haben, während die zweiten Welligkeiten (18; 118) einen zweiten Abstand (P2) zueinander haben, der sich vom ersten Abstand (P1) unterscheidet, was es den ersten Kanälen (C1) und den zweiten Kanälen (C2) ermöglicht, einen ersten Durchgangsquerschnitt (S1) bzw. einen zweiten Durchgangsquerschnitt (S2) zu definieren, die sich voneinander unterscheiden und für das erste Fluid (F1) bzw. für das zweite Fluid (F2) geeignet sind, wobei die ersten Welligkeiten (16; 116) der ersten Platten (12; 112) sich mit den zweiten Welligkeiten (18; 118) der benachbarten zweiten Platten (14; 114) schneiden, damit die ersten Welligkeiten (16; 116) und die zweiten Welligkeiten (18; 118) sich kreuzen und durch jeweilige Scheitel miteinander in Kontakt kommen, wobei die Scheitel gelötet sind,
    wobei der erste Durchgangsquerschnitt (S1) und der zweite Durchgangsquerschnitt (S2), der der kleinere ist, an das erste Fluid (F1) und an das zweite Fluid (F2) angepasst sind, das mit dem höchsten Druck arbeitet, und wobei die Lötflächen (SB2) zwischen einer ersten Platte (12; 112) und einer zweiten Platte (14; 114), die die zweiten Kanäle (C2) definieren, ausgedehnter sind als die Lötflächen (SB1) zwischen einer ersten Platte (12; 112) und einer zweiten Platte (14; 114), die die ersten Kanäle (C1) definieren, was einen besseren Druckwiderstand für den Durchgang eines Hochdruckfluids in den zweiten Kanälen (C2) erlaubt.
  2. Kondensator nach Anspruch 1, dadurch gekennzeichnet, dass die erste Platte (12; 112) einen ebenen Boden (32; 132) aufweist, der eine neutrale Linie definiert, durch die die ersten Welligkeiten (16; 116) gehen.
  3. Kondensator nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die zweite Platte (14; 114) einen ebenen Boden (48; 148) aufweist, der eine neutrale Linie definiert, durch die die zweiten Welligkeiten (18; 118) gehen.
  4. Kondensator nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die ersten Welligkeiten (16) sich in gerader Linie parallel zu einer ersten Richtung (D1) ausbreiten, und dass die zweiten Welligkeiten (18) sich in gerader Linie parallel zu einer zweiten Richtung (D2) ausbreiten, die sich winkelmäßig zur ersten Richtung (D1) erstreckt, so dass die ersten Welligkeiten und die zweiten Welligkeiten sich kreuzen und durch jeweilige Scheitel in Kontakt sind.
  5. Kondensator nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die ersten Welligkeiten (116) sich im Zickzackmuster ausbreiten, und dass die zweiten Welligkeiten (118) sich im Zickzackmuster in zueinander entgegengesetzten Richtungen ausbreiten, so dass die ersten Welligkeiten und die zweiten Welligkeiten sich kreuzen und durch jeweilige Scheitel in Kontakt sind.
  6. Kondensator nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Verhältnis (P1/P2) zwischen dem ersten Abstand (P1) und dem zweiten Abstand (P2) zwischen 1 und 6 liegt, mit P1 < P2.
  7. Kondensator nach Anspruch 6, dadurch gekennzeichnet, dass das Verhältnis (P1/P2) zwischen dem ersten Abstand (P1) und dem zweiten Abstand (P2) eine Bruchzahl ist, zum Beispiel 1/2, 2/3, usw.
  8. Kondensator nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die ersten Platten (12; 112) und die zweiten Platten (14; 114) je mit einem angehobenen abgeschrägten Umfangsrand (34; 134; 50; 150) versehen sind, um einen gegenseitigen Zusammenbau der Platten durch Ineinandersetzen und Löten ihrer jeweiligen Umfangsränder zu erlauben.
  9. Kondensator nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die ersten Platten (12; 112) und die zweiten Platten (14; 114) von allgemein rechtwinkliger Form sind.
  10. Kondensator nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die ersten Platten (12; 112) und die zweiten Platten (14; 114) mit Öffnungen (40, 42, 44, 46; 56, 58, 60, 62; 140, 142, 144, 146; 156, 158, 160, 162) für den Durchgang des ersten Fluids (F1) und des zweiten Fluids (F2) versehen sind.
  11. Kondensator nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass er eine erste geschlossene Endplatte (20; 120) und eine zweite Endplatte (22; 12) enthält, die mit zwei Rohrstutzen (24, 26; 124, 126) für den Eintritt und den Austritt des ersten Fluids (F1) und mit zwei weiteren Rohrstutzen (28, 30; 128, 130) für den Eintritt und den Austritt des zweiten Fluids (F2) versehen ist.
EP09749869.5A 2008-05-22 2009-05-20 Kondensator Active EP2294348B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09749869T PL2294348T3 (pl) 2008-05-22 2009-05-20 Skraplacz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0802772A FR2931542A1 (fr) 2008-05-22 2008-05-22 Echangeur de chaleur a plaques, notamment pour vehicules automobiles
PCT/EP2009/056140 WO2009141379A1 (fr) 2008-05-22 2009-05-20 Echangeur de chaleur a plaques, notamment pour vehicules automobiles

Publications (2)

Publication Number Publication Date
EP2294348A1 EP2294348A1 (de) 2011-03-16
EP2294348B1 true EP2294348B1 (de) 2013-11-20

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EP09749869.5A Active EP2294348B1 (de) 2008-05-22 2009-05-20 Kondensator

Country Status (6)

Country Link
US (1) US9618280B2 (de)
EP (1) EP2294348B1 (de)
CN (1) CN102084205B (de)
FR (1) FR2931542A1 (de)
PL (1) PL2294348T3 (de)
WO (1) WO2009141379A1 (de)

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DE19712154A1 (de) * 1997-03-22 1998-09-24 Inocermic Ges Fuer Innovative Struktur aus profilierten Elementen und deren Verwendung
DE19750748C2 (de) * 1997-11-14 2003-04-24 Behr Gmbh & Co Plattenwärmetauscher
JP3147065B2 (ja) 1997-12-10 2001-03-19 ダイキン工業株式会社 プレート式熱交換器
SE518276C2 (sv) 1997-12-19 2002-09-17 Swep Int Ab Plattvärmeväxlare
JP4462653B2 (ja) 1998-03-26 2010-05-12 株式会社日阪製作所 プレート式熱交換器
SE521377C2 (sv) 1998-09-01 2003-10-28 Compact Plate Ab Plattvärmeväxlare av korsströmstyp
SE516844C3 (sv) * 2000-07-07 2002-04-17 Alfa Laval Ab Plattvärme/plattvärmeväxlare med elektriskt uppvärmbara skikt i dubbelväggiga plattelement
FR2821926B1 (fr) 2001-03-09 2003-10-24 Ciat Sa Echangeur de chaleur a plaques, plaque appartenant a un tel echangeur et utilisation d'un tel echangeur
CN1236270C (zh) 2001-07-25 2006-01-11 缪志先 一种具有型条和焊接结构的板式换热器
SE0201597L (sv) * 2002-05-29 2003-10-21 Alfa Laval Corp Ab Plattvärmeväxlaranordning samt värmeväxlarplatta
DE10228263A1 (de) * 2002-06-25 2004-01-22 Behr Gmbh & Co. Plattenwärmetauscher in Stapelbauweise
FR2846733B1 (fr) * 2002-10-31 2006-09-15 Valeo Thermique Moteur Sa Condenseur, notamment pour un circuit de cimatisation de vehicule automobile, et circuit comprenant ce condenseur
CN1833153B (zh) 2003-08-01 2012-04-04 贝洱两合公司 热交换器及其制造方法
US7032654B2 (en) * 2003-08-19 2006-04-25 Flatplate, Inc. Plate heat exchanger with enhanced surface features
SE524883C2 (sv) * 2003-12-10 2004-10-19 Swep Int Ab Plattvärmeväxlare
EP1630510B2 (de) * 2004-08-28 2014-03-05 SWEP International AB Plattenwärmetauscher
FR2876179B1 (fr) * 2004-10-04 2007-02-16 Alfa Laval Vicarb Sa Echangeur de chaleur a plaques specifiques
US20080078538A1 (en) * 2006-09-28 2008-04-03 Ali Jalilevand Heat exchanger plate having integrated turbulation feature
FR2950682B1 (fr) * 2009-09-30 2012-06-01 Valeo Systemes Thermiques Condenseur pour vehicule automobile a integration amelioree

Also Published As

Publication number Publication date
US20110108258A1 (en) 2011-05-12
WO2009141379A1 (fr) 2009-11-26
PL2294348T3 (pl) 2014-08-29
CN102084205B (zh) 2013-09-04
EP2294348A1 (de) 2011-03-16
CN102084205A (zh) 2011-06-01
US9618280B2 (en) 2017-04-11
FR2931542A1 (fr) 2009-11-27

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