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WO2002081998A1 - Collecteur d'echangeur thermique - Google Patents

Collecteur d'echangeur thermique Download PDF

Info

Publication number
WO2002081998A1
WO2002081998A1 PCT/EP2001/004068 EP0104068W WO02081998A1 WO 2002081998 A1 WO2002081998 A1 WO 2002081998A1 EP 0104068 W EP0104068 W EP 0104068W WO 02081998 A1 WO02081998 A1 WO 02081998A1
Authority
WO
WIPO (PCT)
Prior art keywords
manifold
tube
heat exchanger
flat
recess
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
PCT/EP2001/004068
Other languages
English (en)
Inventor
Reimer Hansen Helge
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.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
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 Norsk Hydro ASA filed Critical Norsk Hydro ASA
Priority to PCT/EP2001/004068 priority Critical patent/WO2002081998A1/fr
Publication of WO2002081998A1 publication Critical patent/WO2002081998A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0243—Header boxes having a circular cross-section
    • 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

Definitions

  • the invention relates to a manifold for a flat tube heat exchanger comprising a plurality of fiat tubes and at least a pair of tube-like manifolds, each having an internal channel connected to the ends of the flat tubes, an inlet or an outlet being provided in the manifolds for introducing a heat exchanging fluid into the flat tubes or discharging it therefrom.
  • Such a heat exchanger is known from EP-A-0 359 358 or WO-A-98.51983.
  • each manifold is formed by a tube having a circular cross-section and the connection between the flat tubes and each manifold is obtained in that holes with a cross-section corresponding to the cross-section of the flat tubes have been made in manifold walls.
  • these holes are such oriented that the flat surface of the flat tubes is perpendicular to the axis of the manifold tube.
  • a number of separation walls may be provided so as to enable the heat exchanging fluid to flow from the inlet to the outlet and thereby flowing back and forth between the two manifold tubes.
  • This type of heat exchanger has a number of disadvantages. Because of the round cross-section of the manifold tube, the width of the flat tube is restricted to the internal diameter of the manifold tube. So if wide tubes have to be used, excessive internal diameters for the manifold tubes have to be used as well, which automatically implies that a high charge of heat exchanging fluid to be used. In view of the impact of this on the environment, this is an unwanted situation. Moreover if flammable or poisonous refrigerants are to be used, there are legal limitations in order to reduce the risk for accidents.
  • connection between the manifold and a tube is made in such a way that the longitudinal axis of the manifold is parallel to the plane defining the flat part of the tube.
  • Fig. 1 an exploded view of a part of a heat exchanger manifold according to the invention
  • Fig. 2 a crosssectional view of a manifold-tube connection and a manifold-inlet/outlet connection according to the invention
  • Fig. 3 an exploded view of a part of a second embodiment of a heat exchanger manifold according to the invention
  • Fig. 4 an exploded view of a part of a third embodiment of a heat exchanger manifold according to the invention
  • Fig. 5 a cross-section perpendicular to the longitudinal axis of the manifold of a heat exchanger according to Fig. 4.
  • a manifold tube 1 In the embodiment shown the manifold has ring- shaped cross-section with an internal channel 3 and its external surface is provided with an elongated rib 2 extending parallel to the axis of the cylindrical manifold 1.
  • the manifold 1 as described above has been obtained by extrusion of a suitable profile.
  • the rib 2 is provided with a number of collars 10 having two parallel walls 4, 5 interconnected by means of two semicircular walls 6, 7, thereby defining a recess 8 which has the same dimensions as the external dimension of the end portion of a flat tube 20, so that this end portion can be accommodated by the collar 10.
  • the bottom 12 of the recess 8 is provided with a number of holes 9 connecting the internal channel 3 of the manifold 1 with the recess 8.
  • the number and the size of the holes 9 may correspond to the number and the size of the channels in the flat tube 20, if the latter is a so-called multiple port extrusion tube. Otherwise, as will be explained later the number of the holes 9 may be different from the number of channels in the flat tube 20.
  • the collars 10 are made by so-called back-extrusion, whereby part of the rib 2 is pressed into a die shaped in accordance with the collars 10 to be made.
  • Such stop means 11,14 can be obtained by reducing the width of the recess 8 near the bottom wall 12 of the recess 8. In this way a space is created between the end face of the tube and the bottom of the recess 8, which enables a fluid exchange between the different holes 9 and the channels of the flat tube 20.
  • the tubes 20 are parallel with their flat surfaces facing each other. This offers the possibility to mount fins between each pair of adjacent tubes 20 in order to increase the heat transfer.
  • the tubes 20 twisted along their longitudinal axis over an angle of 90°, and this preferably in an area close to the manifold. In this way a number of tubes with parallel flat surfaces can be obtained between which the fins can be mounted.
  • Fig. 3 Such an embodiment is shown in Fig. 3.
  • a problem with the heat exchanger obtained by means of the design according to Fig. 1 is that the distance between the adjacent tubes 20 is at least equal to the width of the tubes 20. In case tubes 20 with a relatively small width are used this offers no difficulty in that after twisting of the tubes 20, the distance between two adjacent tubes is sufficient small to provide fins with a sufficient efficiency as to the heat transfer. However if tubes 20 with an increase width are to be used, the distance between adjacent tubes, after twisting, is becoming prohibitive as to heat transfer efficiency. In such a situation the design according to Fig. 3 can be used.
  • the manifold 31 of Fig. 3 is almost identical to the manifold 1 of Fig. 1, and consists of tubelike member provided with a external rib 34, the rib 34 being provided with a number of collars 40, forming recesses 38 which through holes 39 are connected to the internal channel 33 of the manifold 31.
  • the end portion of a tube 20 can be mounted exactly as described with respect to Fig. 1.
  • the position of the collars 40 in the rib is selected in such a way that a first or upper row of collars 40 is formed close to the in Fig. 3 upper longitudinal edge of rib 34, and a second or lower row of collars is formed close to the in Fig. 3 lower longitudinal edge of rib 34.
  • each tube 20 connected to the recesses 38 in the rib 34 is twisted over 90°, as seen along its longitudinal axis and as seen in fig 2 in counter clock direction. Otherwise each 20 connected to the recesses 38 in the rib 35 is twisted over 90°, as seen along its longitudinal axis and as seen in Fig. 2 in clock direction. In this way the flat surfaces of the tubes 20 are brought in parallel relationship and at the same level as seen along the longitudinal axis of the manifold 31.
  • FIG. 4 and 5 A special design of a heat exchanger which becomes possible by means of the construction according to the invention is shown in Fig. 4 and 5.
  • the manifold 61 shown is almost identical to the manifold 1 of Fig. 1 or the manifold 31 of Fig.
  • Two ribs 63 and 64 are substantially parallel to each other whereas the ribs 62 and 65 are extending in radial opposite directions from the longitudinal axis of the manifold 61, and extend substantially under an angle of 90° with respect to the ribs 63 and 64.
  • the orientation of the ribs as such is not critical and the shown relative position is by way of example only.
  • Each rib is provided with a number of collars 66 containing a recess 67 which through holes 68 is connected to the internal channel 69 of the manifold 61.
  • the collars 66/recesses 67 on each rib 62-65 are positioned in such a way that each set is substantially positioned in the same plane as seen along the longitudinal axis of the manifold 61.
  • a tube 20 can be connected to each collar/recess, which tube 20 can be formed in a serpentine way whereas the other end of the tube may be connected to a corresponding manifold. In this way four parallel flow paths can be made between each pair of manifolds.

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 porte sur un collecteur (1) pour des échangeurs thermiques à tubes plats équipés d'un canal interne (3) relié aux extrémités des tubes plats (20), le collecteur étant doté d'un orifice d'entrée ou de sortie afin d'introduire/évacuer un fluide d'échange thermique dans les/ des tubes plats. Le collecteur (1) et un tube (20) sont reliés de manière que l'axe longitudinal du collecteur (1) soit parallèle au plan définissant la partie aplatie du tube (20).
PCT/EP2001/004068 2001-04-04 2001-04-04 Collecteur d'echangeur thermique Ceased WO2002081998A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2001/004068 WO2002081998A1 (fr) 2001-04-04 2001-04-04 Collecteur d'echangeur thermique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2001/004068 WO2002081998A1 (fr) 2001-04-04 2001-04-04 Collecteur d'echangeur thermique

Publications (1)

Publication Number Publication Date
WO2002081998A1 true WO2002081998A1 (fr) 2002-10-17

Family

ID=8164368

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/004068 Ceased WO2002081998A1 (fr) 2001-04-04 2001-04-04 Collecteur d'echangeur thermique

Country Status (1)

Country Link
WO (1) WO2002081998A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589300A1 (fr) * 2004-04-21 2005-10-26 Delphi Technologies, Inc. Connecteur pour élément tubulaire, en particulier connecteur pour condenseur à réservoir sécheur intégré pour circuit de réfrigération
EP1835253A1 (fr) * 2006-03-15 2007-09-19 Behr France Hambach S.A.R.L. Échangeur de chaleur, en particulier condenseur pour systèmes de climatisation des automobiles
WO2010051811A3 (fr) * 2008-11-04 2011-03-17 Noise Limit Aps Condenseur courbe et dispositif de refroidissement
EP2516940A2 (fr) * 2009-12-21 2012-10-31 Magen Eco-Energy (A.C.S.) Ltd. Echangeur thermique et collecteur destine a etre utilise dans ledit echangeur thermique
ITVI20130112A1 (it) * 2013-04-18 2013-07-18 Federico Casarotto Dispositivo per il riscaldamento e/o condizionamento.
DE102012210339A1 (de) * 2012-06-19 2013-12-19 Behr Gmbh & Co. Kg Wärmeübertrager
WO2016060601A1 (fr) * 2014-10-15 2016-04-21 Muovitech Ab Tuyau de distribution en polymère pour système pompe à chaleur géothermique

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524500A (en) * 1968-07-02 1970-08-18 Carlos Benjumeda Heat transmission system
US3982680A (en) * 1974-02-14 1976-09-28 Nippondenso Co., Ltd. Soldering method
FR2349811A1 (fr) * 1976-04-29 1977-11-25 Ici Ltd Echangeur de chaleur
EP0181548A1 (fr) * 1984-11-02 1986-05-21 Norsk Hydro A/S Collecteur et son procédé de fabrication
EP0359358A1 (fr) 1988-09-14 1990-03-21 Showa Aluminum Kabushiki Kaisha Condenseur
US5036909A (en) * 1989-06-22 1991-08-06 General Motors Corporation Multiple serpentine tube heat exchanger
AT400365B (de) * 1993-10-15 1995-12-27 Fercher Josef Wärmetauscher
WO1998051983A1 (fr) 1997-05-12 1998-11-19 Norsk Hydro Asa Echangeur de chaleur
DE19729497A1 (de) * 1997-07-10 1999-01-14 Behr Gmbh & Co Flachrohr-Wärmeübertrager
FR2793013A1 (fr) * 1999-04-28 2000-11-03 Valeo Thermique Moteur Sa Echangeur de chaleur brase, en particulier pour vehicule automobile

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524500A (en) * 1968-07-02 1970-08-18 Carlos Benjumeda Heat transmission system
US3982680A (en) * 1974-02-14 1976-09-28 Nippondenso Co., Ltd. Soldering method
FR2349811A1 (fr) * 1976-04-29 1977-11-25 Ici Ltd Echangeur de chaleur
EP0181548A1 (fr) * 1984-11-02 1986-05-21 Norsk Hydro A/S Collecteur et son procédé de fabrication
EP0359358A1 (fr) 1988-09-14 1990-03-21 Showa Aluminum Kabushiki Kaisha Condenseur
US5036909A (en) * 1989-06-22 1991-08-06 General Motors Corporation Multiple serpentine tube heat exchanger
AT400365B (de) * 1993-10-15 1995-12-27 Fercher Josef Wärmetauscher
WO1998051983A1 (fr) 1997-05-12 1998-11-19 Norsk Hydro Asa Echangeur de chaleur
DE19729497A1 (de) * 1997-07-10 1999-01-14 Behr Gmbh & Co Flachrohr-Wärmeübertrager
FR2793013A1 (fr) * 1999-04-28 2000-11-03 Valeo Thermique Moteur Sa Echangeur de chaleur brase, en particulier pour vehicule automobile

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589300A1 (fr) * 2004-04-21 2005-10-26 Delphi Technologies, Inc. Connecteur pour élément tubulaire, en particulier connecteur pour condenseur à réservoir sécheur intégré pour circuit de réfrigération
EP1835253A1 (fr) * 2006-03-15 2007-09-19 Behr France Hambach S.A.R.L. Échangeur de chaleur, en particulier condenseur pour systèmes de climatisation des automobiles
WO2010051811A3 (fr) * 2008-11-04 2011-03-17 Noise Limit Aps Condenseur courbe et dispositif de refroidissement
EP2516940A2 (fr) * 2009-12-21 2012-10-31 Magen Eco-Energy (A.C.S.) Ltd. Echangeur thermique et collecteur destine a etre utilise dans ledit echangeur thermique
DE102012210339A1 (de) * 2012-06-19 2013-12-19 Behr Gmbh & Co. Kg Wärmeübertrager
US9553345B2 (en) 2012-06-19 2017-01-24 Mahle International Gmbh Heat exchanger
ITVI20130112A1 (it) * 2013-04-18 2013-07-18 Federico Casarotto Dispositivo per il riscaldamento e/o condizionamento.
WO2014170817A1 (fr) * 2013-04-18 2014-10-23 Casarotto Federico Dispositif de chauffage de l'air et/ou de climatisation
WO2016060601A1 (fr) * 2014-10-15 2016-04-21 Muovitech Ab Tuyau de distribution en polymère pour système pompe à chaleur géothermique

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