EP0421955A1 - Echangeur de chaleur à tubes d'eau pour installation de climatisation d'un véhicule automobile, dont la chambre de distribution comporte une cloison de séparation - Google Patents

Echangeur de chaleur à tubes d'eau pour installation de climatisation d'un véhicule automobile, dont la chambre de distribution comporte une cloison de séparation Download PDF

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Publication number
EP0421955A1
EP0421955A1 EP90830429A EP90830429A EP0421955A1 EP 0421955 A1 EP0421955 A1 EP 0421955A1 EP 90830429 A EP90830429 A EP 90830429A EP 90830429 A EP90830429 A EP 90830429A EP 0421955 A1 EP0421955 A1 EP 0421955A1
Authority
EP
European Patent Office
Prior art keywords
baffle
liquid
tube
header
flow
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.)
Granted
Application number
EP90830429A
Other languages
German (de)
English (en)
Other versions
EP0421955B1 (fr
Inventor
Adelio Aimone
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.)
Borletti Climatizzazione SRL
Original Assignee
Borletti Climatizzazione SRL
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 Borletti Climatizzazione SRL filed Critical Borletti Climatizzazione SRL
Publication of EP0421955A1 publication Critical patent/EP0421955A1/fr
Application granted granted Critical
Publication of EP0421955B1 publication Critical patent/EP0421955B1/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
    • 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
    • F28F9/0278—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 stacked distribution plates or perforated plates arranged over end plates
    • 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
    • F28D1/0475—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 having a single U-bend
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • 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
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets

Definitions

  • the present invention relates to a liquid-gas heat exchanger with water tubes, particularly for a motor-vehicle air-conditioning system, of the type including a header with a tube plate, a cover and a baffle for dividing the flow.
  • one side of the flow-dividing baffle is connected to the convex cover of the header and the other side is connected to the tube plate with the interposition of a gasket. It is thus possible to form a water-tube heat exchanger in which the water passes tube-side twice. If one wishes to increase the number of times the liquid passes tube-side, and hence the efficiency of the exchanger, it is necessary to use several flow-dividing baffles which complicate the manufacture of the exchanger and can create sealing problems between the baffles and the tube plate.
  • the object of the present invention is to provide an exchanger of the type specified at the beginning of the description, which allows the liquid to pass tube-side several times without complications in the structure of the exchanger.
  • this object is achieved by virtue of the fact that the flow-dividing baffle is interposed sealingly between the cover and the tube plate and has liquid-channelling means for causing the liquid to pass tube-side several times.
  • the baffle has a flat base portion facing the tube plate and a flow-dividing portion substantially perpendicular to the base portion and having a free edge connectible to the cover of the header by pressure or by ultrasonic welding.
  • an exchanger with water tubes can be formed with three or more "rows" (that is, with sets of finned tubes arranged substantially in three different parallel planes) and a flow-divider, without complications in the assembly of the exchanger, in the arrangement of the baffles or in the positioning of the liquid-inlet and -outlet connectors.
  • a liquid-gas heat exchanger with three rows of water tubes suitable for installation in a motor-vehicle air-conditioning system is generally indicated 10.
  • the exchanger 10 has a finned matrix 10a composed of finned U-shaped tubes arranged between a header 12 and a tube-support frame 14.
  • the header 12 includes a convex cover 16 of polymeric material which has a recessed portion 17 formed with two lateral connectors 16a and 16b for respective connection to inlet and outlet tubes for the liquid, a metal tube plate 18 with a plurality of holes 18a for the passage of the tubes T, and a baffle 20 of polymeric material whose characteristics will become clear from the following description ( Figure 2).
  • the baffle 20 has a flat base portion 20a which faces the tube plate 18 with the interposition of a flat gasket 22 of elastomeric material having a plurality of holes 22a for the passage of the ends of the tubes T, and a substantially L-shaped, flow-dividing portion 20b perpendicular to the base portion 20a.
  • the latter has two series of through-holes 23 and 25 respectively, arranged on opposite sides of the portion 20b of the baffle 20, as well as a plurality of elongate recessed portions 27 with substantially channel-shaped cross-sections arranged in correspondence with adjacent pairs of tubes T in an arrangement which, as shown clearly in Figures 2 and 3, forces the liquid circulating in the tubes in the central plane of the matrix 10a to be conveyed either into other tubes in the central plane (the recesses indicated A in Figures 3 and 5) or into tubes in planes parallel to the central plane of the matrix (the recesses indicated B in Figures 3 and 5).
  • the portion 20b of the ale 20 has a free edge E which is connected (by pressure or by ultrasonic welding), during the assembly of the exchanger, to the corresponding edge E′ of a central baffle plate 30 formed on the base wall 32 of the cover 16 of the header 12 ( Figure 8).
  • edge E of the portion 20b of the baffle 20 is V-shaped and corresponds in shape to a V-shaped recess formed in the edge E′ of the baffle plate 30.
  • the edge of the metal tube plate 18, indicated 18b is folded over a shaped edge 16c of the cover 16 with the interpositon of the edge 22b of the flat gasket 22.
  • the latter is therefore used both to effect a seal between the cover 16 and the tube plate 18 and to effect a seal between the baffle 20 and the tube plate 18 in order to prevent the leakage of liquid between its various passages tube-side ( Figures 2 and 8).
  • the fluid admitted by the connector 16a is forced by the portion 20b of the baffle 20 to pass through the first series of holes 23 and to flow along a first set of U-shaped tubes of the matrix 10a and back again.
  • the liquid is returned thereto by the U-shaped recesses 27 and thus passes twice more through the matrix of finned tubes 10a.
  • the liquid returning from its fourth and last passage through the matrix of tubes flows through the second series of holes 25 and is conveyed to the outlet connector 16b of the exchanger 10 ( Figure 2).

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)
  • Air-Conditioning For Vehicles (AREA)
  • Laminated Bodies (AREA)
EP90830429A 1989-10-06 1990-10-02 Echangeur de chaleur à tubes d'eau pour installation de climatisation d'un véhicule automobile, dont la chambre de distribution comporte une cloison de séparation Expired - Lifetime EP0421955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6785689 1989-10-06
IT06785689A IT1237601B (it) 1989-10-06 1989-10-06 Scambiatore di calore a tubi d'acqua per impianti di climatizzazione di autoveicoli con collettore dotato di setto partitore di flusso.

Publications (2)

Publication Number Publication Date
EP0421955A1 true EP0421955A1 (fr) 1991-04-10
EP0421955B1 EP0421955B1 (fr) 1994-03-16

Family

ID=11305827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90830429A Expired - Lifetime EP0421955B1 (fr) 1989-10-06 1990-10-02 Echangeur de chaleur à tubes d'eau pour installation de climatisation d'un véhicule automobile, dont la chambre de distribution comporte une cloison de séparation

Country Status (4)

Country Link
EP (1) EP0421955B1 (fr)
DE (1) DE69007410T2 (fr)
ES (1) ES2050415T3 (fr)
IT (1) IT1237601B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0518224A1 (fr) * 1991-06-11 1992-12-16 Behr GmbH & Co. Boîte à eau pour un échangeur de chaleur
EP0563471A1 (fr) * 1992-03-31 1993-10-06 Modine Manufacturing Company Evaporateur
EP0978702A1 (fr) * 1998-07-09 2000-02-09 Sierra S.p.A. Appareil d'échange de chaleur avec tubes ailetés
ITUD20110191A1 (it) * 2011-11-25 2013-05-26 Bruno Pilosio Scambiatore di calore ad alette perfezionato e procedimento di produzione

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300881A1 (de) * 1972-02-24 1973-09-06 Modine Mfg Co Waermeaustauscher
US4114397A (en) * 1975-11-21 1978-09-19 Hitachi, Ltd. Evaporator
FR2390692A1 (fr) * 1977-05-13 1978-12-08 Mangeol Charles Echangeur de chaleur, generateur d'eau chaude
FR2509447A1 (fr) * 1981-07-08 1983-01-14 Sueddeutsche Kuehler Behr Evaporateur destine en particulier aux equipements de climatisation de vehicules
FR2573190A1 (fr) * 1984-11-12 1986-05-16 Chausson Usines Sa Evaporateur multitubulaire a boite distributrice rapportee
DE3733866A1 (de) * 1987-10-07 1989-04-27 Sueddeutsche Kuehler Behr Waermetauscher
EP0328414A2 (fr) * 1988-02-12 1989-08-16 Acr Heat Transfer Manufacturing Limited Echangeur de chaleur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300881A1 (de) * 1972-02-24 1973-09-06 Modine Mfg Co Waermeaustauscher
US4114397A (en) * 1975-11-21 1978-09-19 Hitachi, Ltd. Evaporator
FR2390692A1 (fr) * 1977-05-13 1978-12-08 Mangeol Charles Echangeur de chaleur, generateur d'eau chaude
FR2509447A1 (fr) * 1981-07-08 1983-01-14 Sueddeutsche Kuehler Behr Evaporateur destine en particulier aux equipements de climatisation de vehicules
FR2573190A1 (fr) * 1984-11-12 1986-05-16 Chausson Usines Sa Evaporateur multitubulaire a boite distributrice rapportee
DE3733866A1 (de) * 1987-10-07 1989-04-27 Sueddeutsche Kuehler Behr Waermetauscher
EP0328414A2 (fr) * 1988-02-12 1989-08-16 Acr Heat Transfer Manufacturing Limited Echangeur de chaleur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0518224A1 (fr) * 1991-06-11 1992-12-16 Behr GmbH & Co. Boîte à eau pour un échangeur de chaleur
EP0563471A1 (fr) * 1992-03-31 1993-10-06 Modine Manufacturing Company Evaporateur
EP0978702A1 (fr) * 1998-07-09 2000-02-09 Sierra S.p.A. Appareil d'échange de chaleur avec tubes ailetés
ITUD20110191A1 (it) * 2011-11-25 2013-05-26 Bruno Pilosio Scambiatore di calore ad alette perfezionato e procedimento di produzione
WO2013076567A2 (fr) 2011-11-25 2013-05-30 Pilosio Bruno Échangeur de chaleur perfectionné et son procédé de production

Also Published As

Publication number Publication date
IT8967856A1 (it) 1991-04-06
DE69007410T2 (de) 1994-07-07
IT1237601B (it) 1993-06-08
EP0421955B1 (fr) 1994-03-16
ES2050415T3 (es) 1994-05-16
DE69007410D1 (de) 1994-04-21
IT8967856A0 (it) 1989-10-06

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