EP2009383A1 - Sammelkasten für Wärmetauscher - Google Patents

Sammelkasten für Wärmetauscher Download PDF

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Publication number
EP2009383A1
EP2009383A1 EP08157536A EP08157536A EP2009383A1 EP 2009383 A1 EP2009383 A1 EP 2009383A1 EP 08157536 A EP08157536 A EP 08157536A EP 08157536 A EP08157536 A EP 08157536A EP 2009383 A1 EP2009383 A1 EP 2009383A1
Authority
EP
European Patent Office
Prior art keywords
plate
header
sleeve
collar
retaining means
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.)
Withdrawn
Application number
EP08157536A
Other languages
English (en)
French (fr)
Inventor
Gaël LE DUC
Bruno Berthome
Olivier Bigot
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
Original Assignee
Valeo Systemes Thermiques SAS
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 Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2009383A1 publication Critical patent/EP2009383A1/de
Withdrawn legal-status Critical Current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
    • F28D1/053—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
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal 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
    • 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
    • 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

Definitions

  • the invention relates to the field of heat exchangers and in particular to exchangers intended to be traversed by a fluid under high pressure.
  • the invention relates more particularly to air conditioning evaporators capable of being traversed by a refrigerant fluid in the supercritical state, as is the case with gases such as, for example, carbon dioxide or CO 2 .
  • gases such as, for example, carbon dioxide or CO 2 .
  • Such exchangers find particular application in motor vehicles.
  • Collection boxes generally obtained by brazing, which are designed to withstand such high pressures, are already known.
  • connection block is machined and is brazed to the manifold by an intermediate plate.
  • This block is adapted to receive the refrigerant inlet and outlet pipes.
  • This solution has the disadvantage of using a high weight block which can induce brazing problems.
  • the invention aims to improve the situation.
  • the invention proposes a heat exchanger collector box, comprising a collector plate and a cover.
  • the header plate is provided with receiving openings for insertion of heat exchange tubes and at least one fluid inlet / outlet opening.
  • the manifold box further comprises at least one sleeve having a retaining means, which sleeve is disposed in one of the inlet / outlet openings.
  • the retaining means cooperates with the plate manifold for maintaining the sleeve, the sleeve being adapted to receive a fluid inlet / outlet manifold.
  • Such a manifold is particularly advantageous in that the sleeve can be brazed with an optimum brazing surface on the collector plate by its collar. This makes it possible in particular to avoid the presence of plating on the sleeve and limits assembly problems.
  • the arrangement of the sleeve makes it possible to make the connection to the inlet / outlet pipes of fluid in the bulk of the header, in a direction substantially parallel to the heat exchange tubes.
  • the retaining means is a collar.
  • the header plate is stamped at the fluid inlet / outlet opening to form a housing of a shape homologous to that of the collar, and the collar of the sleeve is housed in this housing.
  • the housing has a depth substantially equal to the thickness of the collar.
  • This embodiment makes it possible to optimize the space occupied by the manifold and not to modify the interior arrangement thereof.
  • the manifold can have a distribution plate contiguous to the header plate, between it and the cover, and the sleeve can be housed between the header plate and the distribution plate.
  • the sleeve can be brazed with the manifold plate at its collar and the fluid inlet / outlet opening.
  • the sleeve can be made by stamping and the manifold can have two inlet / outlet openings.
  • the invention also relates to a heat exchanger comprising a bundle of tubes and at least one collector box as described above.
  • this exchanger is in the form of an evaporator for an air conditioning circuit traversed by a high-pressure refrigerant, in particular a fluid operating in the supercritical state.
  • FIG. 1 shows a heat exchanger 10 having a beam 12 mounted between an upper header box 14 and a lower manifold 16, the heat exchanger 10 being considered in a vertical position.
  • the beam 12 is composed of two rows of tubes 18 (only one of which is visible on the figure 1 ) and corrugated inserts common to the two rows of tubes (not shown on the figure 1 ).
  • the manifold 14 is provided with two tubes 22 and 24 serving respectively for the admission and the evacuation of the fluid passing through the tubes of the bundle 12.
  • the heat exchanger 10 is in the form of an evaporator capable of being traversed by a refrigerant fluid operating in the supercritical state, in particular CO 2 , the pressure of which can reach values of order of 100 to 150 bar.
  • This fluid exchanges heat with a flow of air that sweeps the tube bundle to produce a flow of air conditioning, especially in a motor vehicle.
  • the collecting box 14 comprises a collecting plate 26 provided with openings 28 for receiving the tubes of the bundle 12.
  • the openings 28 are of elongate shape and arranged in two rows corresponding to the two rows of tubes 18.
  • the collecting plate 26 is of generally rectangular shape and has, along its two long sides, edges 30 whose role will be specified below. It comprises an extension 32 in which openings 34 and 36 are arranged for the respective mounting of the tubes 22 and 24.
  • the orifices 34 and 36 are each bordered by a stamping 38 which is made towards the side of the collecting plate 26 which receives the beam 12.
  • the collecting plate 26 Above the collecting plate 26 are placed two sleeves 40 each comprising a retaining means (42), the retaining means being here a collar 42.
  • the sleeves and their collars 42 are made by stamping or machining.
  • the sleeves 40 are of substantially cylindrical shape and have an outer diameter substantially equal to that of the orifices 34 and 36. Their inner diameter is substantially equal to the outer diameter of the tubes 22 and 24.
  • the collar 42 has dimensions and a shape similar to those of the stamping 38, that is to say that the stamping 38 has a depth substantially equal to the thickness of the collar 42.
  • the stamping 38 is a housing for the collar 42 when the sleeve 40 is received in one of the orifices 34 or 36.
  • the respective dimensions of the housing 38 and the collar 42 cause the face of the manifold plate 26 which receives the sleeves appears flat.
  • the distribution plate 44 has two rows of slots 46 each communicating with a tube 18. These slots 40 contribute to define chambers that allow the distribution of the fluid and its circulation in the tubes of the beam according to a definite course.
  • the distribution plate 44 further comprises an extension 48 and two orifices 50 and 52 corresponding to the orifices 34 and 36 of the header plate 26.
  • the collars 42 are sandwiched between said collector plate 26 and said distribution plate (44).
  • the collar 42 is soldered to both the header plate (26) and the distribution plate 44.
  • cover 52 intended to be held against the header plate, which makes it possible to trap the distribution plate 44, in particular by brazing the edges 30 on the lateral edges of the cover 52.
  • cover 52 is made in the form of a plate (extruded or stamped) having a peripheral edge 54 brazed with the edge 30.
  • This cover further comprises a series of bosses 56, six in number, in the example shown along the width respectively defining chambers 58 communicating with the chambers of the distribution plate 44.
  • bosses are suitably arranged to allow the cooling fluid to penetrate inside the manifold 14 via the manifold 22, to then flow into the tubes 18 of the bundle 12 between the manifold 14 and the manifold 16 and then leaving the heat exchanger 10 through the outlet pipe 24.
  • the manner in which the circulation of the fluid takes place in the bundle will not be described in detail, in the case of a provision in itself known to those skilled in the art.
  • the manifold 16 is similar to the manifold 14 except that it has no extensions 32 and 48.
  • the manifold plate 26 has a brazing edge on the peripheral edge of the lid and the intermediate plate.
  • any other device for connecting these elements is conceivable by those skilled in the art.
  • the collector box components are made from a metal plate, preferably an aluminum alloy, with a thickness sufficient to withstand the high pressures of the refrigerant.
  • the bosses 56 make it possible to form the chambers 58 of restricted volume limiting the effect of the pressure of the fluid on the components of the collector plate 16.
  • edges 30 are of dimension intended to cover all the edges 54 of the cover 52.
  • the figure 4 is a partial sectional view of the figure 3 to show the distribution of solder veneers necessary for the good performance of the exchanger 10.
  • the tubing 22 has been shown in this figure to better specify this distribution.
  • the entire face of the header plate 26 which receives the sleeves and is covered by the distribution plate 44 and the cover 52 receives a solder plating 60.
  • This face will be described as an inner face.
  • This veneer makes it possible to bond the edge 30 to the edge 54 as well as to the edge of the distribution plate 44.
  • the housing 38 makes it possible to offer a larger brazing surface to the sleeve 40 by soldering not only along the periphery of the sleeve 40 in the orifices 32 and 34, but also on the contact surface of the collar 42 and of the latter.
  • the sleeves 40 are thus held in place very strongly and able to withstand the pressures of the coolant.
  • tubing 22 is disposed in the sleeve 40 without brazing and that the sleeve 40 generally is not covered with solder plating. Indeed, the brazing plating induces adverse effects for assembly with the pipes.
  • the pipes 22 and 24 may be connected to the sleeve 40 by a mechanical device or by brazing.
  • Another embodiment where the distribution plate is omitted, proposes a manifold in which the collar is sandwiched between a header plate and a cover.
  • the collar will be soldered to the header plate and said cover.
  • the manifold of the invention is capable of many other variants. It is in particular possible to distribute the sleeves and receiving ports of the inlet / outlet pipes on the two manifolds. It finds a main application to heat exchangers traversed by a high-pressure refrigerant, in particular to air-conditioning evaporators traversed by a fluid in the supercritical state such as CO 2 , such as those intended for motor vehicles.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP08157536A 2005-10-28 2006-10-27 Sammelkasten für Wärmetauscher Withdrawn EP2009383A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0511132A FR2892803B1 (fr) 2005-10-28 2005-10-28 Boite collectrice pour echangeur de chaleur, notamment pour evaporateur de climatisation, echangeur comportant une telle boite
EP06123077A EP1780490B1 (de) 2005-10-28 2006-10-27 Sammelkasten für Wärmetauscher

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP06123077A Division EP1780490B1 (de) 2005-10-28 2006-10-27 Sammelkasten für Wärmetauscher

Publications (1)

Publication Number Publication Date
EP2009383A1 true EP2009383A1 (de) 2008-12-31

Family

ID=36648729

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08157536A Withdrawn EP2009383A1 (de) 2005-10-28 2006-10-27 Sammelkasten für Wärmetauscher
EP06123077A Active EP1780490B1 (de) 2005-10-28 2006-10-27 Sammelkasten für Wärmetauscher

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06123077A Active EP1780490B1 (de) 2005-10-28 2006-10-27 Sammelkasten für Wärmetauscher

Country Status (5)

Country Link
EP (2) EP2009383A1 (de)
AT (1) ATE425428T1 (de)
DE (1) DE602006005575D1 (de)
ES (1) ES2322190T3 (de)
FR (1) FR2892803B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4317897A1 (de) * 2022-08-02 2024-02-07 Valeo Systemes Thermiques Wärmetauscher

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2988169B1 (fr) * 2012-03-19 2014-04-18 Dana Canada Corp Ensemble raccord brase
EP2801766A1 (de) * 2013-05-10 2014-11-12 voestalpine Polynorm BV Solarkollektor zur Erwärmung eines Wärmeträgers
JP6658710B2 (ja) 2016-11-21 2020-03-04 株式会社デンソー 積層型熱交換器
EP3587990B1 (de) * 2018-06-22 2021-01-27 Valeo Vyminiky Tepla, s.r.o. Sammelkasten für wärmetauscher mit thermischer entkopplung
LU101750B1 (en) * 2020-04-23 2021-10-25 Ht Holding Luxembourg S A Heat exchanger device for battery thermal regulation
DE102021205518A1 (de) * 2021-05-31 2022-12-01 Mahle International Gmbh Wärmeübertrager
DE102021208717A1 (de) 2021-08-10 2023-02-16 Mahle International Gmbh Wärmeübertrager

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2189142A2 (de) * 1972-06-23 1974-01-25 Chausson Usines Sa
WO2001092807A1 (fr) * 2000-05-29 2001-12-06 Valeo Thermique Moteur Boite collectrice pour un echangeur de chaleur brase
EP1182414A2 (de) * 2000-08-25 2002-02-27 Modine Manufacturing Company Kühleranordnung und Kühler
US20030155109A1 (en) * 2002-02-19 2003-08-21 Masaaki Kawakubo Heat exchanger
FR2844346A1 (fr) * 2002-09-10 2004-03-12 Valeo Climatisation Echangeur de chaleur comportant au moins une tubulure de racordement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001330391A (ja) 2000-05-19 2001-11-30 Zexel Valeo Climate Control Corp 熱交換器
SE0002353D0 (sv) 2000-06-22 2000-06-22 Astrazeneca Ab New use
EP1370818A4 (de) 2001-02-19 2006-04-26 Showa Denko Kk Wärmetauscher
EP1444468A4 (de) 2001-11-15 2008-10-22 Showa Denko Kk Wärmetauscher, wärmetauschersammelkasten und herstellungsverfahren dafür

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2189142A2 (de) * 1972-06-23 1974-01-25 Chausson Usines Sa
WO2001092807A1 (fr) * 2000-05-29 2001-12-06 Valeo Thermique Moteur Boite collectrice pour un echangeur de chaleur brase
EP1182414A2 (de) * 2000-08-25 2002-02-27 Modine Manufacturing Company Kühleranordnung und Kühler
US20030155109A1 (en) * 2002-02-19 2003-08-21 Masaaki Kawakubo Heat exchanger
FR2844346A1 (fr) * 2002-09-10 2004-03-12 Valeo Climatisation Echangeur de chaleur comportant au moins une tubulure de racordement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4317897A1 (de) * 2022-08-02 2024-02-07 Valeo Systemes Thermiques Wärmetauscher

Also Published As

Publication number Publication date
EP1780490A1 (de) 2007-05-02
ES2322190T3 (es) 2009-06-17
DE602006005575D1 (de) 2009-04-23
EP1780490B1 (de) 2009-03-11
FR2892803A1 (fr) 2007-05-04
ATE425428T1 (de) 2009-03-15
FR2892803B1 (fr) 2008-04-04

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