EP1528348B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1528348B1
EP1528348B1 EP04024691.0A EP04024691A EP1528348B1 EP 1528348 B1 EP1528348 B1 EP 1528348B1 EP 04024691 A EP04024691 A EP 04024691A EP 1528348 B1 EP1528348 B1 EP 1528348B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
structures
tubes
housing
sheet
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.)
Expired - Lifetime
Application number
EP04024691.0A
Other languages
German (de)
English (en)
Other versions
EP1528348A1 (fr
Inventor
Peter Dr. Geskes
Daniel Hendrix
Rainer Lutz
Ulrich Maucher
Jens Richter
Martin Schindler
Michael Schmidt
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
Priority to JP2006534726A priority Critical patent/JP4676438B2/ja
Priority to US10/576,523 priority patent/US20070017661A1/en
Priority to BRPI0415609-9A priority patent/BRPI0415609A/pt
Priority to PCT/EP2004/011867 priority patent/WO2005040708A1/fr
Publication of EP1528348A1 publication Critical patent/EP1528348A1/fr
Application granted granted Critical
Publication of EP1528348B1 publication Critical patent/EP1528348B1/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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1653—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • 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
    • 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
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • F28F9/0268—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box in the form of multiple deflectors for channeling the heat exchange medium
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities

Definitions

  • the invention relates to a heat exchanger, in particular for a motor vehicle, according to the preamble of claim 1, DE 10060102 discloses such a heat exchanger.
  • a heat exchanger is provided with a housing and at least one tube arranged in the housing, wherein structures are provided between the tubes and the housing and / or the tubes: the primary medium flows through the tubes.
  • the secondary medium is guided in the interstices between the tubes and / or between the tubes and the housing, in which also the structures are arranged are.
  • the structures increase the strength through a stiffening with respect to internal and external pressure stresses of the pipes.
  • the coupling between tubes and housing also provides a continuous compensation of the thermal stresses between the primary and secondary sides over the entire length of the radiator, so that the stresses at the ends of the tubes are significantly reduced.
  • the structures also serve for fluid conduction and distribution in the heat exchanger.
  • the ribbed plates also allow a better heat transfer, so that thermoelectric voltages can be reduced by the improved heat transfer. Due to the increased transfer surface, the tubes are better cooled and boiling can be avoided. Overall, this results in a significant increase in the power density of the heat exchanger over conventional heat exchangers without structures.
  • Preferred structures are sheet metal structures in the form of separate tubes, ribbed plates, dimpled plates, or the like. inserted.
  • the heat exchanger may in particular be an exhaust gas heat exchanger or charge air cooler, but also another heat exchanger, for example another gas-liquid heat exchanger in which hot gas flows through the heat exchanger (cooler) in tubes for cooling, a liquid-gas heat exchanger, in which cold gas in pipes passes through the heat exchanger (heater) for heating, or be a liquid-liquid heat exchanger.
  • the tubes and / or the housing can be correspondingly formed with structures, ie, in particular, the pipe surface may be formed rib-like and / or knob-like.
  • the structures preferably have a height of 1 mm to 5 mm, preferably 1 mm to 3 mm, particularly preferably 1.5 mm.
  • the pitch L of the structures is preferably 0.1 to 6 times, more preferably 0.5 to 4 times the structural height h.
  • the transverse dimension Q is preferably 0.15 to 8 times, more preferably 0.5 to 5 times the structural height h.
  • the ratio of channel height between the tubes and channel height in the tube is in the range of structures preferably 0.1 to 1, preferably 0.2 to 0.7.
  • the hydraulic diameter between the tubes in the region with structures is preferably 0.5 mm to 10 mm, preferably 1 mm to 5 mm.
  • the structures with the housing and / or the pipes are firmly connected, in particular soldered.
  • a fixed connection over a large length of the heat exchanger without or with interruptions, for example, for better coolant distribution provided.
  • the fixed connection increases the external pressure resistance (overpressure on the secondary side) very efficiently because the structures provide tie rods that prevent the tube from collapsing.
  • vibrations of the tubes which are relatively unstable in conventional heat exchangers, are damped by the structures, and a very efficient compensation of the thermoelectric voltages is brought about.
  • the fixed connection supports the heat transfer from the tubes to the structures, so that a better cooling of the tubes takes place. By an improved heat transfer can also reduce the number of tubes, so that the production costs can be reduced.
  • the tubes are preferably at least partially formed by flat tubes.
  • Flat tubes are thermodynamically much more efficient than round tubes, but have a lower pressure resistance, which is why pressure-increasing measures are required for flat tubes, as inventively a support structure on the outside of the tube.
  • the flat tubes in particular have an approximately rectangular cross-section with rounded corners.
  • one-piece rectangular tubes can be provided. These can have a longitudinal seam, which can be welded, for example laser-welded, friction-welded, induction-welded, or soldered.
  • the rectangular tubes can also be constructed of shells that are welded or soldered.
  • the tubes may also have any other shape, for example. Oval, and / or have lateral tabs which are soldered or welded.
  • the tubes for tolerance compensation between the housing and tubes and the structures arranged therebetween may be slightly convex.
  • Turbulizers winglets
  • the pipe surface inside and / or outside
  • the pipe surface can also be structured to generate turbulence.
  • the structures preferably have an inhomogeneous structure at least partially, as a result of which coolant can be supplied to critical areas in a targeted manner, so that overheating or boiling can be avoided. A corresponding increased supply of coolant can also be achieved by the partial omission of structures. These measures can be used to optimize the pressure loss of the heat exchanger and the transverse distribution of the coolant in the heat exchanger.
  • the regions with inhomogeneous structures are preferably in the region of the inlet and / or outlet of the fluid. They serve in particular the flow control and to keep the pressure loss as low as possible.
  • the housing is preferably formed in two or more parts, in particular as a U-shaped shell with a lid, wherein a water tank can be formed integrated in the lid.
  • a water tank can be formed integrated in the lid.
  • a one-piece construction for example with a molded-on water tank, possible.
  • Structures may also be provided in the tubes themselves, with all the above-mentioned structures that may be provided between the tubes also being able to be integrated into the tubes.
  • the structures are preferably formed by rib plates or dimpled sheets, which are connected to the pipe, for example, by welding, soldering or jamming.
  • the structures preferably have a height of 1 mm to 5 mm, preferably 1 mm to 3 mm, particularly preferably 1.5 mm.
  • the pitch L of the structures is preferably 0.5 to 6 times the structural height h.
  • the transverse dimension Q is preferably 0.5 to 8 times the structural height h.
  • the hydraulic diameter in the tube in the region with structures is preferably 0.5 mm to 10 mm, preferably 1 mm to 5 mm.
  • An exhaust gas heat exchanger 1 has a two-part housing 2 and a plurality of tubes 3 arranged in this housing 2. Ribs 4 are provided as structures between the individual tubes 3 and between the housing 2 and the tubes 3, these ribbed plates 4 being toothed in accordance with the present exemplary embodiment, as in FIG Fig. 3 shown and described in more detail later.
  • the tubes 3 are in the present case flat tubes.
  • the housing 2 in which the tubes 3 are arranged consists of a U-shaped first housing part 2 'and a housing cover 2 ", which is set from above onto the first housing part 2.
  • the housing 2' For the inlet and outlet of the coolant (liquid secondary medium ) are two coolant nozzle 5 in the housing cover 2 "provided, wherein the flow direction of the coolant in DC operation in Fig. 2 is shown by dashed arrows. It is also possible to flow through in countercurrent operation, including the flow direction is reversed. Since the coolant is passed through the housing 2 and around the tubes 3, the fin sheets 4 are arranged on the coolant side.
  • the straight toothed ribbed plates 4 point in the direction of in Fig. 3 Arrow shown with a solid line a slight passage and in the dashed line arrow on a heavier passage for the coolant.
  • the flow can be influenced.
  • these can also specifically support the coolant delivery to particularly critical points, including the rib sheets 4 are at least partially formed inhomogeneous.
  • a simple variant of a ribbed plate is shown with a rib running in a straight direction, which has a longitudinal pitch L of 2.4 mm and a rib or structural height h of 1.5 mm.
  • the ribbed sheet can also be bent from a perforated plate, so that the individual corrugations are permeable due to the perforation.
  • a corresponding structure for a charge air cooler is used.
  • Fig. 5a-d show various inhomogeneous regions of the rib sheets 4 forming structures. These cause a better distribution of the fluid in the inflow.
  • the in Fig. 5a is shown, transverse distribution channels are provided by forming or stamping.
  • the rib bleaching 4 were partially cut off.
  • Fig. 5d shows a variant with a special formed on the rib sheet 4 manifold structure. A the FIGS. 5a to 5d corresponding inhomogeneous region can also be provided on the outflow side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Claims (14)

  1. Echangeur de chaleur, en particulier pour des véhicules automobiles, comprenant un carter (2) et des tubes (3) disposés dans le carter (2), où il est prévu des structures dans la zone comprise entre les tubes (3), où les structures sont formées comme des structures en tôles, où les structures en tôles sont des tôles ondulées, caractérisé en ce que des structures sont disposées entre les tubes (3) et le carter (2), où les structures sont formées par des structures en tôles, où les structures en tôles sont des tôles ondulées (4).
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les structures sont configurées directement sur le carter (2) et/ou sur les tubes (3).
  3. Echangeur de chaleur selon l'une ou l'autre des revendications précédentes, caractérisé en ce que les structures sont assemblées fixement, en particulier brasées, avec le carter (2) et/ou avec les tubes (3).
  4. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes (3) sont formés au moins partiellement par des tubes plats.
  5. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes (3) présentent des tétons supports sur le côté extérieur des tubes.
  6. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes (3) présentent, intérieurement et/ou extérieurement, une surface tubulaire qui est configurée de façon structurée pour la production de turbulences.
  7. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les structures (4) présentent au moins partiellement une structure non homogène.
  8. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les structures (4) sont configurées en étant au moins partiellement dentées.
  9. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter (2) est configuré en deux parties ou plus.
  10. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les structures sont disposées à l'intérieur d'au moins un tube.
  11. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les structures sont configurées comme au moins une ailette qui est configurée en particulier de façon rectiligne ou ondulée en profondeur et/ou présente en particulier des ouïes.
  12. Utilisation d'un échangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un milieu à refroidir s'écoule dans les tubes (3) et qu'un moyen de refroidissement s'écoule dans l'espace intermédiaire compris entre le carter (2) et les tubes (3) et les structures (4).
  13. Utilisation d'un échangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les structures (4) sont disposées, côté moyen de refroidissement, dans le carter (2) de l'échangeur de chaleur (1).
  14. Utilisation d'un échangeur de chaleur selon l'une quelconque des revendications 1 à 13 servant d'échangeur de chaleur de gaz d'échappement ou de refroidisseur d'air de suralimentation d'un véhicule automobile.
EP04024691.0A 2003-10-20 2004-10-15 Echangeur de chaleur Expired - Lifetime EP1528348B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2006534726A JP4676438B2 (ja) 2003-10-20 2004-10-20 熱交換器
US10/576,523 US20070017661A1 (en) 2003-10-20 2004-10-20 Heat exchanger
BRPI0415609-9A BRPI0415609A (pt) 2003-10-20 2004-10-20 trocador de calor
PCT/EP2004/011867 WO2005040708A1 (fr) 2003-10-20 2004-10-20 Echangeur thermique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349259 2003-10-20
DE10349259 2003-10-20

Publications (2)

Publication Number Publication Date
EP1528348A1 EP1528348A1 (fr) 2005-05-04
EP1528348B1 true EP1528348B1 (fr) 2014-03-05

Family

ID=34399543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04024691.0A Expired - Lifetime EP1528348B1 (fr) 2003-10-20 2004-10-15 Echangeur de chaleur

Country Status (3)

Country Link
EP (1) EP1528348B1 (fr)
CN (1) CN100447518C (fr)
DE (1) DE102004050567A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246610A (zh) * 2017-05-22 2017-10-13 中国北方车辆研究所 一种扩散燃烧室及包括燃烧室的燃烧器系统

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042315A1 (de) * 2005-09-06 2007-03-08 Behr Gmbh & Co. Kg Kühlmittelkühler, insbesondere für ein Kraftfahrzeug
DE102006043951A1 (de) 2005-09-16 2007-05-03 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Abgaswärmeübertrager für Kraftfahrzeuge
US8915292B2 (en) 2006-02-07 2014-12-23 Modine Manufacturing Company Exhaust gas heat exchanger and method of operating the same
DE102006005362A1 (de) * 2006-02-07 2007-08-09 Modine Manufacturing Co., Racine Abgaswärmetauscher in einer Abgasrückführungsanordnung
WO2008113540A2 (fr) 2007-03-16 2008-09-25 Behr Gmbh & Co. Kg Canal d'écoulement, échangeur de chaleur, système de recyclage des gaz d'échappement, système d'apport d'air de suralimentation et utilisation d'un échangeur de chaleur
DE102007024379A1 (de) * 2007-05-23 2008-11-27 Mingatec Gmbh Plattenapparat für Wärmeübertragungsvorgänge
DE102009012027A1 (de) * 2009-03-10 2010-09-16 Behr Gmbh & Co. Kg Vorrichtung zur Zuführung von Verbrennungsluft zu einem Verbrennungsmotor
DE102009035723B3 (de) * 2009-07-31 2011-02-03 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine
ES2401626B1 (es) * 2011-10-05 2014-09-02 Valeo Térmico, S. A. Intercambiador de calor para gases, en especial de los gases de escape de un motor
DE102012217872A1 (de) * 2012-09-28 2014-04-03 Behr Gmbh & Co. Kg Wärmeübertrager
CN105486150A (zh) * 2016-01-11 2016-04-13 芜湖美的厨卫电器制造有限公司 换热件和换热器
CN107246346B (zh) * 2017-05-22 2018-11-27 中国北方车辆研究所 一种燃烧器安装底座及包括底座的燃烧器系统
CN110274226A (zh) * 2017-05-22 2019-09-24 中国北方车辆研究所 一种旋流发生板及其燃烧器系统
CN110513677B (zh) * 2017-05-22 2021-06-04 中国北方车辆研究所 一种车辆加温器系统
GB2565145B (en) * 2017-08-04 2021-06-30 Hieta Tech Limited Heat exchanger
CN108626037B (zh) * 2018-06-11 2024-06-18 山东宇洋汽车尾气净化装置有限公司 一种紧凑式egr冷却器
CN109612311A (zh) * 2019-01-17 2019-04-12 广东环葆嘉节能科技有限公司 一种换热组件及换热器

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Publication number Priority date Publication date Assignee Title
JP2001174169A (ja) * 1999-12-20 2001-06-29 Denso Corp 熱交換器
JP2001330394A (ja) * 2000-05-22 2001-11-30 Denso Corp 排気熱交換器
JP3985509B2 (ja) * 2000-12-19 2007-10-03 株式会社デンソー 排気熱交換装置
JP4221931B2 (ja) * 2001-07-10 2009-02-12 株式会社デンソー 排気熱交換器
US7077190B2 (en) * 2001-07-10 2006-07-18 Denso Corporation Exhaust gas heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246610A (zh) * 2017-05-22 2017-10-13 中国北方车辆研究所 一种扩散燃烧室及包括燃烧室的燃烧器系统
CN107246610B (zh) * 2017-05-22 2020-05-12 中国北方车辆研究所 一种扩散燃烧室及包括燃烧室的燃烧器系统

Also Published As

Publication number Publication date
DE102004050567A1 (de) 2005-06-09
CN1898519A (zh) 2007-01-17
CN100447518C (zh) 2008-12-31
EP1528348A1 (fr) 2005-05-04

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