EP2473809B1 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP2473809B1
EP2473809B1 EP10747858.8A EP10747858A EP2473809B1 EP 2473809 B1 EP2473809 B1 EP 2473809B1 EP 10747858 A EP10747858 A EP 10747858A EP 2473809 B1 EP2473809 B1 EP 2473809B1
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EP
European Patent Office
Prior art keywords
fluid
housing
modules
plate
use according
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Active
Application number
EP10747858.8A
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English (en)
French (fr)
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EP2473809A1 (de
Inventor
Christophe Denoual
Jimmy Lemee
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.)
Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Publication of EP2473809A1 publication Critical patent/EP2473809A1/de
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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
    • F28D9/0006—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 plate-like or laminated conduits being enclosed within a pressure vessel
    • 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
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to a use of a heat exchanger, in particular for a motor vehicle, such as an internal exchanger in an air conditioning circuit.
  • Heat exchangers for motor vehicles are known today consisting of a bundle of tubes arranged in parallel on one or more rows, these tubes being intended for the circulation through the exchanger of a heat transfer fluid.
  • Heat exchangers are also known comprising a plurality of superposed plates configured to define fluid circulation channels for the heat exchange.
  • Document JP 2003 106688 discloses a use according to the preamble of claim 1.
  • the object of the invention is therefore to overcome these drawbacks of the prior art by proposing a use of a heat exchanger according to claim 1.
  • the figure 1 illustrates a heat exchanger 1 for example for a motor vehicle between a first fluid to be heated or cooled and a second fluid intended to absorb or transfer heat to the first fluid.
  • the first fluid HP (for High Pressure) is a fluid to be cooled at high pressure and high temperature and the second fluid LP (for Low Pressure) is a fluid at low pressure and low temperature intended to absorb the heat of the first HP fluid.
  • the exchanger 1 comprises a housing 3 comprising a housing body 3a and a cover 3b fixed to the housing body 3a.
  • the housing body 3a has a plurality of hooking lugs 5 tightened on the lid 3b once the heat exchanger 1 is assembled.
  • the body 3a is produced by a stamping process.
  • the plurality of attachment lugs 5 projects beyond a circumferential edge.
  • the body 3a is closed by a bottom through which passes an introduction orifice and an evacuation orifice.
  • the hooking lugs 5, the circumferential edge and the bottom are unitary, in the sense that they are made from the same strip.
  • the volume delimited by the circumferential edge and the bottom delimit a space which receives modules 15 stacked flat in this space.
  • the housing 3 has introduction orifices for the first HP and the second LP fluids, and discharge orifices for the first HP and the second LP fluids.
  • the housing body 3a comprises an introduction orifice 7 for the first HP fluid and an evacuation orifice 9 for the second LP fluid
  • the cover 3b comprises an introduction orifice 11 for the second LP fluid and an evacuation orifice 13 for the first HP fluid.
  • the inlet 7 and outlet 13 orifices for the first HP fluid are connected in sealed manner to a supply circuit (not shown) for the first HP fluid.
  • the orifices for introduction 11 and evacuation 9 of the second fluid BP are connected in a sealed manner to a supply circuit (not shown) for the second fluid BP.
  • the casing 3, and more particularly the body 3a of the casing, houses a plurality of substantially identical modules 15 superposed in the casing 3 and fixed in the casing 3 for example by soldering.
  • intermediate modules 15c can be arranged between the lower 15a and upper 15b modules.
  • a module 15 comprises an upper plate 17 and a lower plate 19 shown in more detail on the picture 3 .
  • the upper 17 and lower 19 plates are, for example, metal plates of substantially parallelepipedic general shape which have a small thickness of between 0.5 and 1.5 mm.
  • edge 39 At the angle of the short side (hereafter edge 39) and the long side of the parallelepipedic shape of the plates there is a protrusion which extends in the same plane as the plate.
  • This protrusion has a rounded outline and supports connecting portions 27a and 27b (at each end but diagonally across the plate).
  • the contour of the plate is inclined in the direction of the orifices placed on the opposite edge.
  • the inclined contours delimit, with the internal wall of the body 3a and the cover 3b, an admission chamber dedicated to the low pressure fluid BP.
  • the existence of the inclined contour makes it possible to release a sufficient volume so that the introduction orifice 11 is not obstructed by the upper module 15b.
  • only one of the two plates (lower or upper) of the same module can include a raised contour, thus making it possible to delimit the interior cavity 21.
  • This interior cavity 21 forms a first circulation channel for the first HP fluid.
  • the exchanger 1 therefore comprises three first channels.
  • the first channels thus formed are parallel to each other, and have for example a height of 1 to 1.5 mm.
  • Fins 25 can be arranged in these first channels to improve heat exchange. These fins take the form of an accordion-folded turbulent plate.
  • connection portions make it possible to assemble the modules 15 between them and with the casing 3 by cooperating with portions associated adjacent connection of a neighboring module 15 or of the box 3.
  • connection portion 27 In the example shown on the figures 1 and 2 , the bottom of the housing body 3a and the cover 3b respectively comprise a connection portion 27. These connection portions 27 respectively comprise the introduction orifice 7 of the first fluid HP, and the discharge orifice 13 of the first fluid HP.
  • Top plates 17 and lower 19 have a first connection portion 27a and a second connection portion 27b ( picture 3 ).
  • connection portions 27a of the modules 15 are aligned with each other and with the connection portion 27 of the housing body 3a.
  • the second connection portions 27b of the modules 15 are aligned with each other and with the connection portion 27 of the cover 3b.
  • connection portions 27a and 27b of the modules 15 also have orifices or holes for the passage of the first HP fluid.
  • the orifices of the first connection portions 27a communicate with each other and with the introduction orifice 7 of the first HP fluid.
  • a channel for introducing the first HP fluid is thus defined.
  • the orifices of the second connection portions 27b communicate with each other and with the discharge orifice 13 of the first HP fluid. A channel for discharging the first HP fluid is thus defined.
  • connection portions 27, 27a and 27b cooperate with each other, by brazing for example, in a sealed manner in order to prevent any leakage.
  • the first 27a and second 27b connection portions of a plate 17, 19 can be arranged on either side of the upper 17 and lower 19 plate on a common diagonal of the plate concerned, shown in dotted lines on the picture 3 .
  • connection portions 27a and 27b in order to improve the circulation of the first HP fluid, provision can also be made for the connection portions 27a and 27b to form hollows on the internal surfaces 29 facing the upper 17 and lower 19 plates.
  • connection portion 27 of the housing body 3a forms a bump relative to the surface of the housing body 3a facing the lower module 15a.
  • connection portion 27 of the cover 3b forms a bump relative to the surface of the cover 3b facing the upper module 15b.
  • the connecting portions 27a and 27b of the modules 15 form bumps on the outer surfaces 31 of the upper 17 and lower 19 plates.
  • the bumps formed extend respectively towards the associated adjacent connecting portions 27, 27a or 27b.
  • the bumps of the connection portions 27, 27a and 27b make it possible to define spaces 33 between one or more consecutive modules 15c and between the lower module 15a, respectively upper 15b, and the bottom of the case body 3a, respectively the cover 3b.
  • exchanger 1 has four second channels.
  • the second channels are therefore located above and below the first channels to optimize the heat exchange between the two HP/LP fluids.
  • the second channels are also parallel to the first channels of so that the two HP and LP fluids circulate in two parallel directions.
  • additional holding portions 37 ( figure 2 and 3 ) on the upper 17 and lower 19 plates.
  • these additional portions 37 are arranged next to the connection portions 27a and/or 27b with the same characteristics of hollows on the internal surfaces 29 and bumps on the external surfaces 31 of the upper 17 and lower 19 plates and with a larger size. reduced compared to the connection portions 27a and 27b.
  • These additional holding portions 37 have an additional function in that they prevent any movement of the fins 35 present in the spaces 33.
  • each upper 17 and lower 19 plate may have two notches formed respectively on two opposite edges 39 of the plate 17 or 19 to improve the distribution of the second fluid LP in the various second channels.
  • the heat exchange performance is thus improved by keeping a relatively simple shape of the upper 17 and lower 19 plates forming the modules 15.
  • the box 3 provides guidance and stacking of the upper 17 and lower 19 plates during this assembly process which allows rapid assembly of the exchanger and which can be easily automated.
  • the exchanger 1 differs from the first embodiment described above in that the housing 3 is made in the form of two half-housings 3' and 3".
  • each half-box 3', 3" respectively in contact with the lower 15a and upper 15b modules comprises a connection portion 27.
  • the modules 15 remain identical with respect to the first embodiment previously described.
  • the two half-housings 3',3" are fixed for example by brazing at a junction 41 between the two half-housings 3',3" to guarantee the tightness of the housing 3.
  • modules 15 comprising the first channels being assembled in the casing 3 with spaces 33 delimiting the second channels both above and below of these first channels, the risks of leakage are minimized.
  • an exchanger 1 is particularly suitable for use within an air conditioning loop for a motor vehicle comprising a gas condenser or cooler, an expansion member, an evaporator and a compressor through which a refrigerant fluid flows in this order.
  • This air conditioning loop comprises a high pressure branch which begins at the compressor outlet and ends at the input of the expansion member, and a low pressure branch which begins at the output of the expansion member and ends at the compressor inlet.
  • the exchanger is used as an internal exchanger, that is to say an exchanger through which the refrigerant at high pressure and high temperature passes which circulates in the first channels and through which the same refrigerant passes. low pressure and low temperature which circulates in the second channels.

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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 (10)

  1. Nutzung eines Wärmeaustauschers zwischen einem ersten (HP) und einem zweiten (BP) Fluid:
    - wobei der Wärmeaustauscher ein Gehäuse (3) aufweist, innerhalb dessen eine Mehrzahl von Modulen (15, 15a, 15b, 15c) angeordnet ist, die jeweils eine obere Platte (17) und eine untere Platte (19) umfassen, die zusammengesetzt sind, wobei sie zwischen den Platten (17, 19) einen inneren Hohlraum (21) definieren, der einen ersten Durchströmungskanal für das erste Fluid (HP) bildet, ein Vorsprung, der sich in derselben Ebene wie die Platte erstreckt, am Winkel der kleinen Seite (39) und der großen Seite der Quaderform der Platten (17, 19) vorhanden ist,
    - wobei wenigstens ein zweiter Durchströmungskanal für das zweite Fluid (BP) vom Gehäuse (3) und einem Raum (33) zwischen den Modulen begrenzt ist,
    dadurch gekennzeichnet, dass der Wärmeaustauscher als innerer Austauscher genutzt wird und innerhalb einer Klimasteuerungsschleife platziert ist, um zwischen einem Hochdruckarm und einem Niederdruckarm der Schleife Wärmeaustausch durchzuführen,
    - wobei neben diesem Vorsprung und auf dem Rest der kleinen Seite (39) festgestellt wird, dass die Kontur der Platte in der Richtung der Öffnungen geneigt ist, die am gegenüberliegenden Rand platziert sind, so dass sie mit der Innenwand des Gehäuses eine Zulaufkammer begrenzt, die für das Niederdruckfluid (BP) vorgesehen ist.
  2. Nutzung nach Anspruch 1, dadurch gekennzeichnet, dass:
    - die obere (17) und untere (19) Platte eines Moduls (15, 15a, 15b, 15c) jeweils wenigstens einen Anschlussabschnitt (27a, 27b) aufweisen, der mit einem zugehörigen benachbarten Anschlussabschnitt (27, 27a, 27b) eines angrenzenden Moduls (15, 15a, 15b, 15c) oder des Gehäuses (3) zusammenwirkt, und dadurch, dass
    - die Anschlussabschnitte (27a, 27b) Erhebungen auf den Außenflächen (31) der oberen (17) und unteren (19) Platte bilden, wobei sich die Erhebungen jeweils in Richtung der zugehörigen benachbarten Anschlussabschnitte (27, 27a, 27b) erstrecken.
  3. Nutzung nach Anspruch 2, dadurch gekennzeichnet, dass die Anschlussabschnitte (27a, 27b) auf den Innenflächen (29) gegenüber der oberen (17) und unteren (19) Platte, die das Modul (15, 15a, 15b, 15c) bilden, Vertiefungen bilden.
  4. Nutzung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass:
    - eine vorbestimmte Anzahl von Anschlussabschnitten (27a, 27b) zu einem Anschlussabschnitt (27) des Gehäuses ausgerichtet ist, der eine Öffnung zur Einleitung (7) / Ableitung (13) des ersten Fluids (HP) aufweist, und dadurch, dass
    - die ausgerichteten Anschlussabschnitte (27a, 27b) jeweils eine Öffnung aufweisen, wobei alle der Öffnungen so miteinander verbunden sind, dass sie einen Kanal zur Ein-/Ableitung des ersten Fluids (HP) definieren.
  5. Nutzung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Platten (17, 19) jeweils zwei Anschlussabschnitte (27a, 27b) aufweisen, die beiderseits der Platte (17, 19) über eine gemeinsame Diagonale der Platte (17, 19) angeordnet sind.
  6. Nutzung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Platten (17, 19) jeweils eine allgemeine Quaderform mit zwei Rillen aufweisen, die jeweils an den zwei gegenüberliegenden Rändern (39) der Platte (17, 19) ausgebildet sind.
  7. Nutzung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Gehäuse (3) eine Öffnung zur Einleitung (11) des zweiten Fluids (BP) an der Öffnung zur Ableitung (13) des ersten Fluids (HP) und eine Öffnung zur Ableitung (9) des zweiten Fluids (BP) an der Öffnung zur Einleitung (7) des ersten Fluids (HP) für eine Durchströmung des ersten (HP) und zweiten (BP) Fluids im Gegenstrom aufweist.
  8. Nutzung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Gehäuse einen Körper (3a) des Gehäuses (3) aufweist, in dem die Module (15, 15a, 15b, 15c) gestapelt sind, wobei der Körper von einem Deckel (3b) verschlossen ist, der über den Modulen (15, 15a, 15b, 15c) angeordnet und mittels Verbindungslaschen (5) am Körper (3a) befestigt ist.
  9. Nutzung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Gehäuse (3) in Form zweier zusammengesetzter Gehäusehälften (3', 3") hergestellt ist.
  10. Nutzung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Wärmeaustauscher Rippen (25, 35) aufweist, die im inneren Hohlraum (21), der den ersten Durchströmungskanal begrenzt, und/oder in dem Raum (33) angeordnet sind, der zwischen den Modulen definiert ist, der den zweiten Durchströmungskanal begrenzt.
EP10747858.8A 2009-08-31 2010-08-31 Wärmetauscher Active EP2473809B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0904125A FR2949554B1 (fr) 2009-08-31 2009-08-31 Echangeur thermique
PCT/EP2010/062699 WO2011023825A1 (fr) 2009-08-31 2010-08-31 Echangeur thermique

Publications (2)

Publication Number Publication Date
EP2473809A1 EP2473809A1 (de) 2012-07-11
EP2473809B1 true EP2473809B1 (de) 2022-11-23

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Family Applications (1)

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EP10747858.8A Active EP2473809B1 (de) 2009-08-31 2010-08-31 Wärmetauscher

Country Status (5)

Country Link
US (1) US9494369B2 (de)
EP (1) EP2473809B1 (de)
CN (1) CN102597680B (de)
FR (1) FR2949554B1 (de)
WO (1) WO2011023825A1 (de)

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JP2012107804A (ja) * 2010-11-17 2012-06-07 Mitsubishi Heavy Ind Ltd 積層型熱交換器、それを用いた熱媒体加熱装置および車両用空調装置
FR2977307B1 (fr) * 2011-06-30 2013-08-09 Valeo Systemes Thermiques Boitier d'echangeur a plaques empilees et echangeur comprenant un tel boitier
FR3000186B1 (fr) * 2012-12-21 2018-11-30 Valeo Systemes Thermiques Echangeur de chaleur entre un liquide caloporteur et un fluide refrigerant, notamment pour vehicule automobile
CN103983133B (zh) * 2014-04-21 2015-09-23 无锡溥汇机械科技有限公司 一种模块化的螺旋板式换热器
KR101683491B1 (ko) * 2014-12-09 2016-12-07 현대자동차 주식회사 차량용 열교환기
KR101816356B1 (ko) * 2015-11-13 2018-01-08 현대자동차주식회사 차량용 엔진의 냉각 장치
US10830510B2 (en) 2015-12-21 2020-11-10 Johnson Controls Technology Company Heat exchanger for a vapor compression system
US20170176066A1 (en) 2015-12-21 2017-06-22 Johnson Controls Technology Company Condenser with external subcooler
US10697354B2 (en) * 2016-08-25 2020-06-30 Hanon Systems Heat exchanger
KR102325110B1 (ko) * 2017-05-31 2021-11-11 한온시스템 주식회사 전기소자 냉각용 열교환기
EP3447429B1 (de) * 2017-08-22 2023-06-07 InnoHeat Sweden AB Wärmetauscherplatte und wärmetauscher
EP3489604B1 (de) * 2017-11-24 2020-12-23 TitanX Holding AB Fahrzeugkondensator
US11274884B2 (en) * 2019-03-29 2022-03-15 Dana Canada Corporation Heat exchanger module with an adapter module for direct mounting to a vehicle component
CN112524793B (zh) * 2019-09-17 2022-05-24 广东美的生活电器制造有限公司 液体处理装置

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JP2003106688A (ja) * 2001-09-28 2003-04-09 Zexel Valeo Climate Control Corp 冷凍サイクル
GB2426322A (en) * 2005-07-22 2006-11-22 Michael Tate Exhaust Gas Heat Exchanger

Also Published As

Publication number Publication date
EP2473809A1 (de) 2012-07-11
US9494369B2 (en) 2016-11-15
CN102597680B (zh) 2014-06-11
WO2011023825A1 (fr) 2011-03-03
FR2949554B1 (fr) 2012-08-31
FR2949554A1 (fr) 2011-03-04
CN102597680A (zh) 2012-07-18
US20120247145A1 (en) 2012-10-04

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