EP1682838A1 - Systeme d'echange de chaleur - Google Patents

Systeme d'echange de chaleur

Info

Publication number
EP1682838A1
EP1682838A1 EP04765239A EP04765239A EP1682838A1 EP 1682838 A1 EP1682838 A1 EP 1682838A1 EP 04765239 A EP04765239 A EP 04765239A EP 04765239 A EP04765239 A EP 04765239A EP 1682838 A1 EP1682838 A1 EP 1682838A1
Authority
EP
European Patent Office
Prior art keywords
flow
collection
refrigerant
devices
section
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Withdrawn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
EP04765239A
Other languages
German (de)
English (en)
Inventor
Uwe FÖRSTER
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1682838A1 publication Critical patent/EP1682838A1/fr
Withdrawn legal-status Critical Current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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • 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
    • 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
    • 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
    • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • the present invention relates to a device for exchanging heat, in particular for a motor vehicle.
  • Heat exchangers are known from the prior art which have a multiplicity of throughflow devices which are arranged essentially in two different planes. A section of refrigerant flows through individual groups of flow devices. Since the temperature of the refrigerant changes greatly during the passage through the heat exchanger and therefore the refrigerant can have very different temperatures in individual flow devices, a thermal separation of the two levels of the flow devices is necessary. This thermal separation is accomplished in the prior art, for example, by a relatively large distance between the two levels.
  • thermal separation requires additional installation space in the depth of the heat exchanger, which also causes additional costs.
  • the invention is therefore based on the object of reducing the installation space required for a heat exchanger. This is done according to the invention achieved a device according to claim 1.
  • Advantageous embodiments of the invention are the subject of the dependent claims.
  • the invention relates to a device for exchanging heat, in particular for a motor vehicle with at least one feed and at least one discharge for a liquid and / or gaseous refrigerant, a plurality of flow devices, at least a first portion of this plurality of flow devices in a first Plane, and a second portion of this plurality of flow devices is arranged in a second plane substantially parallel to the first plane.
  • At least one first and one second collection and / or distribution device is provided, the first and the second collection and / or distribution device being arranged at the end sections of the individual flow devices.
  • the refrigerant flows in at least a first longitudinal section of the device essentially (in parallel) simultaneously through essentially all of the flow devices located in this longitudinal section.
  • Flow devices are understood to be devices which can flow through a liquid and / or gaseous refrigerant in particular.
  • Flow devices may have expansions in a direction perpendicular to this plane, but are essentially with their entire longitudinal extent in the plane in question.
  • a collection and / or distribution device is such a device by means of which a refrigerant emerging from the flow devices can be collected and / or can be distributed to preferably several flow devices.
  • a geometric one is formed in the longitudinal direction of the collecting and / or distributing devices Understand section, including the flow facilities located in this section.
  • the first longitudinal section is the first section through which the refrigerant flows in the flow direction. This means that it is or to the said longitudinal section associated throughflow is at the first longitudinal portion to those through-flow devices, which, after the refrigerant by - istr reaches the feed in the device as ⁇ first v ⁇ n the refrigerant flows through. During the course of the refrigerant through the device for exchanging heat, this has a strong temperature gradient, particularly after it has entered through the supply. However, since precisely this section flows through all of the flow devices essentially simultaneously, only slight temperature differences occur between the individual flow devices, so that these flow devices do not have to be thermally separated from one another.
  • the flow devices located in the first longitudinal section are flowed through in time, or connected in series, so that inevitable considerable temperature differences in the individual flow devices occur, which requires thermal separation.
  • At least one collecting and / or distributing device has a section within which the flow direction of the refrigerant has a component in a component perpendicular to the longitudinal direction of the collecting and / or distributing device. This means that the refrigerant flows in at least one section not only in the longitudinal direction of the collecting and / or distributing device, but also in a direction perpendicular to these directions. This section is not only provided in the area of supply and / or discharge for the refrigerant.
  • a plurality of first and / or a plurality of second collection and / or distribution devices are provided.
  • Two distributing and / or collecting devices are provided on the upper and lower end sections of the flow devices arranged in the at least two levels.
  • substantially every rjrchfiuß adopted either in the first plane "or ⁇ the second EBE ⁇ ne is arranged.
  • the flow devices can also be arranged in more than two levels.
  • At least two flow devices preferably have a different flow cross section.
  • the refrigerant flows in at least a first section of the device essentially simultaneously through essentially all of the flow devices located in this longitudinal section. Therefore, instead of flow devices, which are arranged in pairs on two levels, a flow device can also be provided in this area, which preferably has an enlarged width.
  • this first longitudinal section of the device at least one flow device protrudes at least partially into both the first and the second level. Two flow devices in different areas are preferred. nen, which face each other, combined to form a flow device.
  • the flow devices which are arranged in the first longitudinal section have essentially twice the flow cross section compared to that of the other flow devices.
  • Essentially twice the flow cross-section is understood to mean that the flow cross-section of these flow devices is a factor of 1.5 to 3 larger than that of the other flow devices, particularly preferably by a factor of 1.7 to 2.5, and particularly preferably of 1, 8 to 2.3.
  • At least one collection and / or distribution device is divided at least in sections into at least a first and a second collection and / or distribution area, the end sections of the first portion of the throughflow devices in the first collection and / or distribution area and the end sections of the second portion of the plurality of flow devices open into the second collection and / or distribution area.
  • the device has only two collection and / or distribution devices ⁇ - -on which however at least partially through. get in . Longitudinal direction of the """ collecting and distribution device extending partition are separated from each other.
  • At least one flow connection is provided between the first and the second distribution area, through which the refrigerant can flow. In this way it is achieved that the refrigerant can also flow from the flow devices, which are arranged in one plane, to flow devices, which are arranged in the other plane.
  • At least one collecting and / or distributing device has at least one separating device which essentially allows the refrigerant to flow in the longitudinal direction . prevented.
  • This separating device prevents the cold can flow through a collection and / or distribution device substantially along its entire length immediately after entering the device. Rather, the refrigerant is passed in sections through individual areas of the flow devices.
  • the flow devices have an essentially flat tube-like cross section.
  • substantially flat-tube-like is understood to mean that, viewed in cross section, the extent in one direction is substantially greater than the extent in a direction perpendicular to this direction.
  • Flat tube-like would therefore be understood to mean, for example, a rectangular cross section in which the long sides are substantially longer than the transverse sides.
  • the cross section of the flow device is preferably selected from a group of cross sections which have rectangular, elliptical mixed forms and mixed forms of such cross sections.
  • the flow devices have two or more flow channels for the refrigerant.
  • turbolence-increasing devices are provided in the longitudinal direction between the individual flow devices, such as cooling fins ⁇ ⁇ nd ⁇ tergleiuhBn. "
  • At least one flow device is provided, which is in flow connection with at least one section of essentially all collection and distribution devices.
  • This flow device is preferably arranged in the first longitudinal section of the device, that is to say in the region in which the refrigerant flows through all the flow devices essentially simultaneously.
  • At least one flow device is provided, which is in flow connection with only one section each of two collection and / or distribution devices.
  • FIG. 3 shows the refrigerant guide in a second embodiment of the present invention
  • Fig. 5 shows the refrigerant guide in a fourth embodiment of the invention.
  • FIGR 1 shows a device for the exchange of "heat in the prior 'art 15.
  • the device has a feed 1 and a discharge 2 for the refrigerant.
  • Reference numeral 5 denotes a first collecting and distributing device and reference numeral 6 denotes a second collecting and distributing device.
  • Two collection and distribution devices 8 and 9 20 are also provided at the lower end of the device for exchanging heat.
  • the reference numerals 7, T and 7 "refer to flow devices through which the refrigerant can flow.
  • the reference symbol 10 denotes cooling fins arranged between two individual flow devices.
  • the refrigerant first flows through the feed 1 into the collecting and / or distributing device 5, or section 5a of the collecting and / or distributing device 5.
  • the refrigerant reaches a partition which is arranged approximately at the level of the connecting device inside the collecting and distributing device 5. From there, the refrigerant flows down into the collection and distribution device 5 8, which is only partially shown.
  • the refrigerant can be distributed over its entire longitudinal extent and reaches the area of the collection and distribution device 5 that is arranged on the left in the flow connection 13 via the flow devices 7.
  • the refrigerant flows through the flow connection 13 into the collecting and distributing device 6, which also has another separating device at the level of the flow connection 13, more precisely in the drawing to the left of the flow connection 13, which also separates this collecting and / or distributing device into two sections 6a and 6b5 divides.
  • section 6b of the collecting and distributing device 6 the refrigerant passes through flow devices 7 (not shown) into the collecting and distributing device 9, and from there upwards into section 6b of the collecting and distributing device 6. From here the refrigerant finally passes the derivative 2 from the device.
  • a thermal separation is necessary between the flow Q 'flow devices 7 and the further flow devices (not shown) behind them, since the individual flow devices are flowed through in sections in succession.
  • Fig. 2 shows the refrigerant guides in a first embodiment of the 5 present invention.
  • the device for exchanging heat consists of an at least two-row system (that is, in at least two pipes one behind the other, which form the structural depth).
  • the medium or the refrigerant enters the device in areas 1 and 2, both areas being in flow communication. After the essentially simultaneous flow through the flat tubes 21a and 21b, the medium flows into the areas 3 and 4, which are also in flow connection with one another. From these two areas, the medium can only flow further in area 5.
  • a separating device such as a dividing wall (not shown), which prevents the medium from flowing in the longitudinal direction. In this embodiment, the device is only flowed through in one row in the further course of the fluid.
  • the fluid flows from the area 5 via the flow devices 23 into the area 6 and from there through a flow connection 24 into the area 7. From there, the fluid flows through the flow devices 25 into the area 8.
  • the refrigerant is passed diagonally from the area 8 to the area 9, diagonal here being understood to mean that the flow direction of the refrigerant has both a component in the longitudinal direction of the flow device 11 and in a direction perpendicular thereto.
  • FIG. 3 shows the refrigerant guide in a further embodiment of the present invention.
  • the refrigerant initially reaches regions 1 and 2 essentially simultaneously and from there via regions 21a and 21b to regions 3 and 4. From there, the refrigerant arrives, as in the case of the exemplary embodiment of FIG Fig. 2 first in the area 5 and then in the areas 6, 7 and 8.
  • the device in the embodiment shown in Fig. 3 is divided into four sections, with a third section essentially analogous to the second section adjoins this second section.
  • the refrigerant flows through a flow Binding 26 in area 9, and from there via flow devices 28 into flow area 10, and from there via flow connection 29 into area 11.
  • the refrigerant reaches the area 12 via the flow devices 30, and from there a diagonal flow connection 31 leads to the area 13.
  • the refrigerant passes through a further coolant guide 32 to the area 14 and from there essentially simultaneously the flow devices 33a and 33b into the areas 15 and 16, from where it can flow off via the discharge line 34.
  • the refrigerant reaches regions 1 and 2 via the feed, and from there via regions 21a and 21b to regions 3 and 4.
  • the refrigerant flows from area 4 into area 5 and via a flow connection 22b into area 6.
  • the refrigerant then flows essentially simultaneously through the flow devices 3H ⁇ j ⁇ d " 23b " into the regions 7 and ⁇ rVorrrR Scheme
  • the refrigerant flows into area 9, and from there via flow devices 26 into area 10.
  • the refrigerant flows from the area 10 via a flow connection 27 into the area 11, and from there via flow devices 28 into the area 12. From the area 12, the refrigerant flows into the area 13, and there via the flow devices 30 into the area 14. and then via the flow connection 31 into the flow devices 32 into the area 16 and from there out of the device via the discharge line 33.
  • FIG. 5 shows the refrigerant guide in a further embodiment according to the invention.
  • the refrigerant flow up to area 5 corresponds to the above-mentioned embodiments.
  • the refrigerant now passes through the Flow devices 23 into areas 6 and 7, and from there via flow devices 24 into area 8, and from there via a diagonal flow connection 25 into flow devices 26, from there into areas 10 and 11 and into flow devices 27 and finally into the derivative 28.
  • refrigerant guides are also possible.
  • several sections can be connected in series, in which the refrigerant can flow essentially simultaneously through the flow devices of the different levels.
  • all the designs have in common that in the first section after the supply line, the refrigerant flows simultaneously through the flow devices arranged in parallel with one another, each of which is identified by the letters a and b in the figures.
  • any guidance of the refrigerant is possible, and, as shown in FIG. 5, the refrigerant can also flow back along the longitudinal direction into the collection and distribution devices.
  • the supply for the refrigerant can also be provided at other positions of the devices, such as in areas 3 or 4 or in the other areas.

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 système d'échange de chaleur, destiné en particulier à un véhicule automobile. Ce système comprend au moins une amenée et au moins une évacuation pour un agent de refroidissement, une pluralité de dispositifs d'écoulement (21a, 21b, 23, 25, 27, 29), au moins une première partie (21a, 25, 29) de cette pluralité de dispositifs d'écoulement (21a, 21b, 23, 25, 27, 29) étant disposée dans au moins un premier plan et une deuxième partie (21b, 23, 27) de ladite pluralité de dispositifs d'écoulement étant disposée dans au moins un deuxième plan sensiblement parallèle au premier, ainsi qu'au moins un premier et un deuxième dispositif de collecte et/ou de distribution (1-12), ce premier et ce deuxième dispositif de collecte et/ou de distribution (1-12) étant disposés au niveau des sections d'extrémité des dispositifs d'écoulement (21a, 21b, 23, 25, 27, 29) individuels. L'agent de refroidissement s'écoule ainsi dans au moins une première section longitudinale du système sensiblement simultanément à travers sensiblement tous les dispositifs d'écoulement (21a, 21b, 23, 25, 27, 29) se trouvant dans ladite section longitudinale.
EP04765239A 2003-10-24 2004-09-15 Systeme d'echange de chaleur Withdrawn EP1682838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349974A DE10349974A1 (de) 2003-10-24 2003-10-24 Vorrichtung zum Austausch von Wärme
PCT/EP2004/010329 WO2005050115A1 (fr) 2003-10-24 2004-09-15 Systeme d'echange de chaleur

Publications (1)

Publication Number Publication Date
EP1682838A1 true EP1682838A1 (fr) 2006-07-26

Family

ID=34485084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765239A Withdrawn EP1682838A1 (fr) 2003-10-24 2004-09-15 Systeme d'echange de chaleur

Country Status (4)

Country Link
EP (1) EP1682838A1 (fr)
KR (1) KR20060107538A (fr)
DE (1) DE10349974A1 (fr)
WO (1) WO2005050115A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200712401A (en) * 2005-09-30 2007-04-01 Seasonair M Sdn Bhd Heat exchangers
FR2920045B1 (fr) * 2007-08-16 2010-03-12 Valeo Systemes Thermiques Evaporateur a nappes multiples, en particulier pour un circuit de climatisation de vehicule automobile
US9352134B2 (en) 2013-11-01 2016-05-31 Biosense Webster (Israel) Ltd. Segmented balloon catheter

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Publication number Priority date Publication date Assignee Title
DE593691C (de) * 1932-01-26 1934-03-07 Heiz- oder Kühlkörper mit Rohren, insbesondere solchen, die mit Rippen besetzt sind.
CA1117520A (fr) * 1980-06-27 1982-02-02 Bozo Dragojevic Echangeur de chaleur
US4829780A (en) * 1988-01-28 1989-05-16 Modine Manufacturing Company Evaporator with improved condensate collection
JP3030036B2 (ja) * 1989-08-23 2000-04-10 昭和アルミニウム株式会社 複式熱交換器
US5186246A (en) * 1992-06-01 1993-02-16 General Motors Corporation Extruded coolant/refrigerant tank with separate headers
JPH10325645A (ja) * 1997-05-26 1998-12-08 Denso Corp 冷媒蒸発器
ATE243310T1 (de) * 1998-11-09 2003-07-15 Calsonic Kansei Corp Plattenverdampfer
JP4056663B2 (ja) * 1999-10-01 2008-03-05 昭和電工株式会社 積層型熱交換器
US6745827B2 (en) * 2001-09-29 2004-06-08 Halla Climate Control Corporation Heat exchanger
JP3960233B2 (ja) * 2002-04-03 2007-08-15 株式会社デンソー 熱交換器

Non-Patent Citations (1)

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Title
See references of WO2005050115A1 *

Also Published As

Publication number Publication date
DE10349974A1 (de) 2005-05-25
WO2005050115A1 (fr) 2005-06-02
KR20060107538A (ko) 2006-10-13

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