WO2014123474A1 - Échangeur thermique - Google Patents

Échangeur thermique Download PDF

Info

Publication number
WO2014123474A1
WO2014123474A1 PCT/SE2014/050136 SE2014050136W WO2014123474A1 WO 2014123474 A1 WO2014123474 A1 WO 2014123474A1 SE 2014050136 W SE2014050136 W SE 2014050136W WO 2014123474 A1 WO2014123474 A1 WO 2014123474A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
flat tubes
header
header plates
collar
Prior art date
Application number
PCT/SE2014/050136
Other languages
English (en)
Inventor
Arnaud Contet
Olof Erlandsson
Thomas SKÅRE
Original Assignee
Titanx Engine Cooling Holding Ab
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 Titanx Engine Cooling Holding Ab filed Critical Titanx Engine Cooling Holding Ab
Publication of WO2014123474A1 publication Critical patent/WO2014123474A1/fr

Links

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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F28D1/053—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 the conduits being straight
    • F28D1/0535—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 the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes
    • 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 present invention concerns a heat exchanger having a core comprising a plurality of flat tubes, that have first and second ends tightly connected to elongated header plates of metal of a first and a second collecting tank, respectively.
  • the object of the present invention is to create a heat exchanger that is compact and potentially light, easy to produce and durable too.
  • each oblong aperture comprises a collar protruding from the respective header plate on a core side thereof and completely rimming a tube inserted therein, wherein at least a part of a short side of said collar internally is aligned with an inner side of a first continuous longitudinal flange of the respective header plate on a tank side thereof.
  • a compact lightweight heat exchanger inter alia requires use of thin walled tubes. These are relatively weak and benefit considerably of external support that helps them to withstand internal pressure in a working heat exchanger.
  • the heat exchanger according to the invention provides such support by means of said collars, and it does so without need to increase size and/or weight. Further, said collars render tight interconnection of tubes and header plates possible in a more easy way than in the compact heat exchanger mentioned above, because the tubes and header plates can be interconnected before the remainder of the collecting tanks is attached.
  • the heat exchanger preferably comprises flat tubes and header plates being made of aluminium and clad in order to enable tight connection by brazing. Thanks to the possibility to preassemble the flat tubes and the header plates into a stand alone unit, that can be brazed in a oven, production is rendered more easy and versatile than for the compact heat exchanger mentioned above.
  • the header plates of the heat exchanger according to the present invention are made of a sheet material and the oblong apertures and their collars are formed by stamping.
  • stamping of a sheet material is the most common production method, the difference from before being that at least a part of a short side of each collar internally is aligned with an inner side of a continuous longitudinal flange of a header plate. In practice this requires forming said longitudinal flange simultaneously with or before the actual stamping is performed.
  • each header plate has two opposing continuous longitudinal flanges, that form part an interface to a remainder of the respective collecting tank.
  • the person skilled in the art realizes that two such opposing continuous flanges render tank assembly far more easy than for instance projections of a tank cover, which is the case in the compact heat exchanger mentioned above.
  • said interface comprises a welding structure connecting said flanges to the remainder of a collecting tank.
  • said welding structure may comprise a single welding seam, running all around the collecting tank in question, and that such a welding seam is easy to
  • said interface comprises a crimping structure connecting said flanges to said remainder.
  • the alternative solution according to the present invention is used e.g. when the remainder of the collecting tanks, that is other parts than the header plates, mainly is made of plastic material.
  • the so called crimping structure comprises inter alia a circumferential row of lugs, that are folded (crimped) over a foot part of a collecting tank in order to press said foot part onto a tightening gasket.
  • Fig. 1 shows a heat exchanger from behind
  • Fig. 2 shows the heat exchanger from one side
  • Fig. 3 shows the general concept of the heat exchanger in a cross- section
  • Fig. 4 shows said general concept in a longitudinal section
  • Fig. 5 shows said general concept in a side view
  • Fig. 6 shows an enlarged part of fig. 3 in order to illustrate a stress line.
  • the heat exchanger 1 illustrated and described is a charge air cooler (CAC) for a diesel engine (not shown), but the inventive concept as such is of course not limited to that specific kind of heat
  • heat exchanger and can be used for many different kinds of heat exchangers, such as oil coolers and coolant radiators.
  • the heat exchanger 1 includes a core 2 illustrated best in figs. 1 and 2.
  • the core 2 comprises a plurality of flat tubes 3, which are described in more detail below, and in-between these tubes 3 a surface enlarging structure, such as fins, not explicitly shown or described as it pertains to common knowledge in the art.
  • the flat tubes 3 of the core 2 are tightly connected to elongated header plates 4, 5, that form part of a first and a second collecting tank 6, 7, respectively.
  • the way in which the header plates 4, 5 are connected to the remainder of the collecting tanks 6, 7 is also described in more detail below.
  • the bottom one 6 of the collecting tanks has an inlet 8 for receiving charge air from e.g. a compressor (not shown).
  • the top one 7 of the collecting tanks has an outlet 9 for supplying cooled air to said diesel engine, the charge air being cooled by a cooling air flow passing the core 2 from the front of the heat exchanger 1 (to the left in fig. 2) to the back thereof (to the right in fig. 2).
  • header plates 4, 5 are made of a sheet material, that has been formed into a bowl shape, especially such that two opposing continuous longitudinal flanges 10, 1 1 are created on a tank side of the respective header plate 4, 5.
  • These longitudinal flanges 10, 1 1 and optional transverse counterparts (not shown) at short side ends of the header plates 4, 5, are used as part of an interface to a remainder of the respective collecting tank 6, 7, such as a cowling.
  • a part of said remainder is illustrated in figs. 3 and 6 in the form of downward directed flanges enumerated 6 and 7 just like the collecting tanks they in fact belong to.
  • the interface mentioned above does according to the preferred and shown embodiment of the invention comprise welding of the header plates 4, 5 and the remainder or the collecting tanks 6, 7 together such that a leak proof unit is formed.
  • the alternative embodiment is used e.g. when the remainder of the collecting tanks mainly is made of plastic material and comprises inter alia a circumferential row of lugs, that are crimped or folded over a foot part of a collecting tank in order to press said foot part onto a tightening gasket.
  • each oblong aperture 12 is provided with a collar 13 protruding from the respective header plate 4, 5 on a core side thereof.
  • the long sides of the oblong apertures 12 are best seen in fig. 3 and the short sides of thereof are best seen in fig. 4.
  • Said collar 13 is circumferential and comprises two opposite long sides and two opposite short sides, wherein at least a part of a short side of said collar 1 1 comprises part of a continuous longitudinal flange 10, 1 1 of the respective header plate 4, 5.
  • the oblong apertures 12 in the header plates 4, 5 span the whole header plate 4, 5 in question except for twice the header plate thickness. This is best illustrated in fig. 3, where a complete header plate 4, 5 is shown in cross-section, but also in fig. 6, where only part thereof is shown.
  • the flat tubes 3 of the heat exchanger 1 are made of aluminium, which is clad in order to enable brazing in a oven to likewise clad header plates of aluminium. This is normal standard in the industry and hence well known to a person skilled in the art. In other respects, too, the flat tubes 3 are not in any way special or unusual. They have two opposing long sides, two opposing short sides, open ends and are all straight.
  • the tubes 3 are inserted into the oblong apertures 10, in which they are to fit closely, such that, in cross-section, the flat tubes 3 have a longitudinal axis thereof essentially aligned with a transverse axis of said header plates 4, 5.
  • the tubes 3 are completely rimmed by the protruding collars 13 of the oblong apertures in the header plates 4, 5 and form a centre part of a heat exchanger 1 that easily can be put into a brazing oven.
  • first and second collecting tanks 6, 7 are referred to as a bottom and top collecting tank, respectively. This obviously applies only to the situation as shown, as collecting tanks arranged differently are well known in the art and hence possible as well.

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)

Abstract

L'invention concerne un échangeur thermique (1) possédant une partie centrale (2) comprenant une pluralité de tuyaux plats (3), qui possèdent des première et seconde extrémités hermétiquement reliées à des plaques de collecteur allongées (4, 5) de métal de premier et second réservoirs de recueil (6, 7), respectivement. Afin de permettre un raccordement hermétique desdits tuyaux plats (3) auxdites plaques de collecteur (4, 5), ceux-ci comprennent des ouvertures oblongues (12) correspondant auxdites extrémités des tuyaux plats (3) et possédant un grand axe pratiquement aligné avec un axe transversal desdites plaques de collecteur (4, 5). Chaque ouverture oblongue (12) comprend un collier (13) dépassant de la plaque de collecteur respective (4, 5) sur un côté partie centrale de celui-ci et bordant complètement un tuyau (3) inséré dedans, au moins une partie d'un côté court dudit collier (13) étant alignée de façon interne avec un côté interne d'un rebord longitudinal continu (10, 11) de la plaque de collecteur respective (4, 5) sur un côté réservoir de celle-ci.
PCT/SE2014/050136 2013-02-05 2014-02-04 Échangeur thermique WO2014123474A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1350136A SE1350136A1 (sv) 2013-02-05 2013-02-05 Värmeväxlare
SE1350136-6 2013-02-05

Publications (1)

Publication Number Publication Date
WO2014123474A1 true WO2014123474A1 (fr) 2014-08-14

Family

ID=51299974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2014/050136 WO2014123474A1 (fr) 2013-02-05 2014-02-04 Échangeur thermique

Country Status (2)

Country Link
SE (1) SE1350136A1 (fr)
WO (1) WO2014123474A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113739619A (zh) * 2020-05-27 2021-12-03 法雷奥汽车空调湖北有限公司动力总成热系统分公司 集管器连接结构、热交换器及机动车辆

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130517A1 (de) * 1991-09-13 1993-03-18 Behr Gmbh & Co Anschlusskasten fuer einen waermetauscher, insbesondere fuer einen kaeltemittelkondensator
WO2000053358A1 (fr) * 1999-03-10 2000-09-14 Transpro, Inc. Echangeur thermique soude a construction d'oeillets
JP2002213840A (ja) * 2001-01-19 2002-07-31 Denso Corp 蒸発器
WO2005090891A1 (fr) * 2004-03-23 2005-09-29 Showa Denko K.K. Échangeur thermique
EP2151655A2 (fr) * 2008-08-08 2010-02-10 Behr GmbH & Co. KG Echangeur thermique, utilisation et procédé de fabrication d'un échangeur thermique
DE102008051422A1 (de) * 2008-10-11 2010-04-15 Modine Manufacturing Co., Racine Ganz-Metall-Wärmetauscher und Verfahren
US20120018135A1 (en) * 2010-07-20 2012-01-26 Denso Marston Ltd. Header plate, a heat exchanger, a method of making a header plate and a method of making a heat exchanger
US20120199332A1 (en) * 2011-02-04 2012-08-09 Ken Cornell Heat exchanger header plate

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130517A1 (de) * 1991-09-13 1993-03-18 Behr Gmbh & Co Anschlusskasten fuer einen waermetauscher, insbesondere fuer einen kaeltemittelkondensator
WO2000053358A1 (fr) * 1999-03-10 2000-09-14 Transpro, Inc. Echangeur thermique soude a construction d'oeillets
JP2002213840A (ja) * 2001-01-19 2002-07-31 Denso Corp 蒸発器
WO2005090891A1 (fr) * 2004-03-23 2005-09-29 Showa Denko K.K. Échangeur thermique
EP2151655A2 (fr) * 2008-08-08 2010-02-10 Behr GmbH & Co. KG Echangeur thermique, utilisation et procédé de fabrication d'un échangeur thermique
DE102008051422A1 (de) * 2008-10-11 2010-04-15 Modine Manufacturing Co., Racine Ganz-Metall-Wärmetauscher und Verfahren
US20120018135A1 (en) * 2010-07-20 2012-01-26 Denso Marston Ltd. Header plate, a heat exchanger, a method of making a header plate and a method of making a heat exchanger
US20120199332A1 (en) * 2011-02-04 2012-08-09 Ken Cornell Heat exchanger header plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113739619A (zh) * 2020-05-27 2021-12-03 法雷奥汽车空调湖北有限公司动力总成热系统分公司 集管器连接结构、热交换器及机动车辆

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