EP0719997B1 - Echangeur de chaleur à trois fluides d'encombrement réduit - Google Patents

Echangeur de chaleur à trois fluides d'encombrement réduit Download PDF

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Publication number
EP0719997B1
EP0719997B1 EP95120016A EP95120016A EP0719997B1 EP 0719997 B1 EP0719997 B1 EP 0719997B1 EP 95120016 A EP95120016 A EP 95120016A EP 95120016 A EP95120016 A EP 95120016A EP 0719997 B1 EP0719997 B1 EP 0719997B1
Authority
EP
European Patent Office
Prior art keywords
pockets
heat exchanger
fluid
pocket
chambers
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
EP95120016A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0719997A1 (fr
Inventor
Didier Loup
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 Climatisation SA
Original Assignee
Valeo Climatisation SA
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
Application filed by Valeo Climatisation SA filed Critical Valeo Climatisation SA
Publication of EP0719997A1 publication Critical patent/EP0719997A1/fr
Application granted granted Critical
Publication of EP0719997B1 publication Critical patent/EP0719997B1/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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0461—Combination of different types of heat exchanger, e.g. radiator combined with tube-and-shell heat exchanger; Arrangement of conduits for heat exchange between at least two media and for heat exchange between at least one medium and the large body of fluid
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28D2021/0085—Evaporators
    • 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
    • F28D2021/0091—Radiators
    • F28D2021/0096—Radiators for space heating

Definitions

  • the invention relates to a triple heat exchanger for heat exchange between a first fluid in the gaseous state and second and third fluids flowing in separate circuits, presenting a series of form intervals flat stacked in alternating stacking direction with a first series of flat pockets and a second series of flat pockets in which circulate respectively the second and third fluids, a pocket of each series being arranged between two consecutive intervals and each pocket being separated by at least one interval adjacent by a clean heat conducting wall to be swept by a stream of the first flowing fluid in said interval.
  • Such a heat exchanger is described in EP-A-0431917.
  • This known heat exchanger acts as a radiator for the cooling of the internal combustion engine motor vehicle, and condenser of a circuit of vehicle interior air conditioning.
  • the first fluid is then atmospheric air, the second fluid the fluid of engine cooling and the third fluid the fluid air conditioning system refrigerant.
  • the two pockets arranged between two consecutive intervals are juxtaposed and each extend over a fraction of the area of stacking. They are at a certain distance one of the other and each of them is adjacent to the two intervals consecutive.
  • the total size of this exchanger in the direction of juxtaposition of the pockets corresponds to the sum of the dimensions of a radiator and a condenser separated who would exercise the same functions as him, and of a additional space corresponding to the distance between the two juxtaposed pockets.
  • the object of the invention is to remedy this drawback, and provide a space-saving triple heat exchanger reduced compared to the set of two exchangers that it replaces.
  • Another goal is to allow, in addition to the heat exchange direct between the first fluid and each of the second and third fluids, a direct exchange between the second and third fluids.
  • a heat exchanger heat acting as a heating radiator and evaporator direct heat exchange between the heat transfer fluid of the heating radiator and the refrigerant of the evaporator promotes heat transfer to this last fluid and therefore its complete evaporation.
  • the invention relates in particular to a heat exchanger of the kind defined in the introduction, and provides that the two pockets arranged between two consecutive intervals are superimposed in the stacking direction and extend each, and are in direct mutual thermal contact, substantially over the entire stack area.
  • the size of the heat exchanger in the direction of the width of the pockets is thus reduced to that of a simple two-fluid exchanger. This reduction is obtained at the cost of increased clutter in the direction stacking, this increase being limited to the sum of the thicknesses of the sleeves of a series. The result overall a reduction in bulk in volume. Of plus, the direct heat exchange between the second and third fluids is ensured by the surface contact between the covers of the two series.
  • the invention also relates to the use of a heat exchanger as defined above, in which the first, second and third fluids are respectively air intended to be sent into the passenger compartment of a vehicle, a coolant capable of passing from the liquid state in the gaseous state in the exchanger by absorbing heat, and a hot fluid capable of giving heat to both other fluids.
  • the illustrated heat exchanger comprises a series of pockets 1 and a series of pockets 2 stacked alternately from left to right in FIG. 1 over a height H measured from top to bottom in FIG. 1.
  • the pockets have a substantially constant thickness e and are limited by substantially planar and vertical faces, the side facing to the right of a pocket 1 being in direct contact with the side facing left of the following pocket 2, and the side facing to the right of a pocket 2 being separated from the side turned to the left of the next pocket 1 by an interval 3.
  • Each of the intervals 3 is lined with a thin corrugated plate 4 conductive of heat, the crests of which are in alternately contact with the two sides of the pockets limiting the interval.
  • air can circulate in the intervals 3, inside the horizontal channels delimited by the corrugations of the plates 4, to exchange heat, through these plates and the walls of the pockets, with fluids which circulate in the latter as explained below.
  • All pockets 1 and 2 are identical, each being constituted by two sheet plates 5 and 6 also identical. These two plates are stamped in the form of bowls and are joined together tightly over their entire substantially rectangular outline to define a volume closed interior.
  • the lower side of the pockets 1 is located at the lower limit of height H, and these same pockets protrude upward beyond the upper limit of this height.
  • the depth of the bowls formed by plates 5 and 6 is increased, compared to the constant shallow depth that they have on the height H, so that the bottom dish 7 of bowl 5, convex to the left, of a pocket 1 comes to rest on the flat bottom 8 of the plate 6, convex to the right, of the pocket 1 located on the left from the previous one.
  • each pocket is thus equal in this region to the pitch of the alternate stack, on the height H, intervals 3 and the two series of pockets.
  • the top side of the pockets 2 is located at the upper limit of the height H, and these pouches extend down beyond the limit lower height H, thickening and coming in mutual contact by flat bottoms 7 and 8 respectively turned to the left and to the right.
  • each pocket is also combined tightly in a median zone 9 relative to the pocket width, extending continuously from the end edge 14 thereof located above or below from height H to a certain distance from the edge opposite 15.
  • the interior volume of each pocket presents so a U-shaped configuration whose ends of the two branches 10 and 11 are located in the thickened region of the pocket, each of the flat bottoms 7, 8 being separated in two parts 7a and 7b, 8a and 8b, by the connection zone 9.
  • Each parts 7a, 7b, 8a, 8b is pierced with an opening 12.
  • the openings 12 of two adjacent bottom portions provide a communication between the thickened ends of the branches of U-shaped paths of two neighboring pockets of the same series.
  • the thickened ends 13a of the branches 10 constitute fluid entry chambers in each pocket and are interconnected by the corresponding openings 12 to form an inlet line.
  • the ends thickened 13b of the branches 11 constitute chambers of fluid outlet from each pocket and are joined between them, through the corresponding openings 12, to form a outlet pipe.
  • the fluid circulates in parallel, in the U-shaped paths of the different sleeves of the same series, between the inlet pipe and the outlet pipe. Good heard, the bottom part 7a or 7b and the bottom part 8a or 8b mutually adjacent two neighboring pockets are tightly connected around their openings 12.
  • One of the two openings 12 located at the ends of each inlet or outlet pipe is connected to a pipe inlet or outlet of the exchanger not shown, the other opening being closed.

Landscapes

  • 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)
EP95120016A 1994-12-26 1995-12-19 Echangeur de chaleur à trois fluides d'encombrement réduit Expired - Lifetime EP0719997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415652 1994-12-26
FR9415652A FR2728666A1 (fr) 1994-12-26 1994-12-26 Echangeur de chaleur a trois fluides d'encombrement reduit

Publications (2)

Publication Number Publication Date
EP0719997A1 EP0719997A1 (fr) 1996-07-03
EP0719997B1 true EP0719997B1 (fr) 1998-11-11

Family

ID=9470245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95120016A Expired - Lifetime EP0719997B1 (fr) 1994-12-26 1995-12-19 Echangeur de chaleur à trois fluides d'encombrement réduit

Country Status (5)

Country Link
US (1) US5884696A (enrdf_load_stackoverflow)
EP (1) EP0719997B1 (enrdf_load_stackoverflow)
DE (1) DE69505943T2 (enrdf_load_stackoverflow)
ES (1) ES2124957T3 (enrdf_load_stackoverflow)
FR (1) FR2728666A1 (enrdf_load_stackoverflow)

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EP0859209A4 (en) * 1996-08-29 1999-06-09 Zexel Corp HEAT EXCHANGER
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FR2803376B1 (fr) * 1999-12-29 2002-09-06 Valeo Climatisation Evaporateur a tubes plats empilees possedant deux boites a fluide opposees
US6405793B1 (en) * 2000-05-03 2002-06-18 Delphi Technologies, Inc. Secondary loop system for passenger compartment heating and cooling
US6543240B2 (en) 2001-07-20 2003-04-08 William W. Grafton Combination airconditioning/heat system for emergency vehicle
CN100464135C (zh) * 2001-08-14 2009-02-25 环球冷却有限公司 冷凝器和包括该冷凝器的冷却装置
US7073567B2 (en) * 2001-08-14 2006-07-11 Global Cooling Bv Condenser evaporator and cooling device
DE10201512A1 (de) * 2002-01-17 2003-07-31 Behr Gmbh & Co Mehrkammerflachrohr
JP3906797B2 (ja) * 2002-12-20 2007-04-18 株式会社デンソー 熱交換器
DE10313234B4 (de) * 2003-03-17 2010-12-30 Visteon Global Technologies, Inc., Dearborn Heizungswärmeübertrager
US6804976B1 (en) * 2003-12-12 2004-10-19 John F. Dain High reliability multi-tube thermal exchange structure
DE102004051608A1 (de) * 2004-10-23 2006-04-27 Bayerische Motoren Werke Ag Kühleinrichtung für Fahrzeuge
JP2008527306A (ja) * 2005-01-14 2008-07-24 ベール ゲーエムベーハー ウント コー カーゲー 特に自動車空調装置用の蒸発器
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JP2010243066A (ja) * 2009-04-07 2010-10-28 Showa Denko Kk 蓄冷熱交換器
CN101832719A (zh) * 2010-04-28 2010-09-15 苏州昆拓冷机有限公司 新型多通道换热器
JP5413433B2 (ja) * 2010-11-09 2014-02-12 株式会社デンソー 熱交換器
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FR3000187B1 (fr) * 2012-12-21 2019-08-16 Valeo Systemes Thermiques Echangeur de chaleur, notamment pour fluide refrigerant circulant dans un vehicule automobile
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Also Published As

Publication number Publication date
DE69505943D1 (de) 1998-12-17
FR2728666A1 (fr) 1996-06-28
ES2124957T3 (es) 1999-02-16
FR2728666B1 (enrdf_load_stackoverflow) 1997-02-14
EP0719997A1 (fr) 1996-07-03
US5884696A (en) 1999-03-23
DE69505943T2 (de) 1999-04-15

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