EP1189008A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1189008A1
EP1189008A1 EP00308062A EP00308062A EP1189008A1 EP 1189008 A1 EP1189008 A1 EP 1189008A1 EP 00308062 A EP00308062 A EP 00308062A EP 00308062 A EP00308062 A EP 00308062A EP 1189008 A1 EP1189008 A1 EP 1189008A1
Authority
EP
European Patent Office
Prior art keywords
core
casing
inlet
fluid
convex portions
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
EP00308062A
Other languages
German (de)
English (en)
Other versions
EP1189008B1 (fr
Inventor
Youichi Nakamura
Kimiaki Nakano
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.)
Toyo Radiator Co Ltd
Original Assignee
Toyo Radiator Co Ltd
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 Toyo Radiator Co Ltd filed Critical Toyo Radiator Co Ltd
Priority to DE60006813T priority Critical patent/DE60006813T2/de
Priority to EP00308062A priority patent/EP1189008B1/fr
Publication of EP1189008A1 publication Critical patent/EP1189008A1/fr
Application granted granted Critical
Publication of EP1189008B1 publication Critical patent/EP1189008B1/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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/104—Particular pattern of flow of the heat exchange media with parallel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the present invention relates to a heat exchanger provided with a casing, received in which casing is a heat exchanger core provided with a pair of inlet/outlet convex portions in its opposite end portions, wherein the core has its inlet/outlet convex portions project outward from the casing, and a difference in thermal expansion between the casing and the core is adequately absorbed in the heat exchanger.
  • a conventional heat exchanger is provided with a casing, which receives therein a heat exchanger core.
  • Apair of inlet/outlet convex portions for example such as inlet/outlet pipes and their corresponding boss portions in which the inlet/outlet pipes are mounted, are provided in opposite longitudinal end portions of the core.
  • the inlet/outlet convex portions or pipes pass through the casing through a pair of through-hole portions of the casing, are brought into fluid-tight contact therewith and fixedly mounted therein through a suitable fixing means such as soldering and the like.
  • a first fluid is introduced into the core through these inlet/outlet pipes.
  • a second fluid is introduced into the casing so that the exchange of heat between the first and the second fluid is conducted in the conventional heat exchanger.
  • the conventional heat exchanger having the above construction, for example, cold water which serves as the second fluid is introduced into the casing.
  • hot fluid serving as the first fluid is introduced into the core.
  • the casing reaches substantially the same temperature as that of the cold water.
  • the core reaches substantially the same temperature as that of the hot fluid.
  • the core is larger in thermal expansion than the casing, which causes thermal stresses to concentrate in root portions of the inlet/outlet pipes. Consequently, due to such concentration of the thermal stresses, there is a fear that a crack is produced in the root portions of the inlet/outlet pipes in use.
  • a short sleeve portion larger in diameter than the one of the inlet/outlet convex portion of the core is provided in a position corresponding to that of the corresponding one of the through-hole portions of the casing ;
  • the short sleeve portion of the casing has its front-end opening portion brought into fluid-tight contact with one of opposite ends of the bellows , the other one of the opposite ends of the bellows being brought into fluid-tight contact with the one of the inlet/outlet convex portions of the core
  • the short sleeve portion of the casing is provided with an inner flange portion of the casing in its root portion; and, a holding means for slidably holding the inner flange portion of the casing is provided in the root portion of the one of the inlet/outlet convex portions of the core.
  • the short sleeve portion of the casing assumes a circular truncated cone shape.
  • Fig. 1 shows a first embodiment of a heat exchanger of the present invention.
  • Fig. 2 shows deformation in a bellows 6 of the heat exchanger of the present invention shown in Fig. 1.
  • the heat exchanger of the present invention is provided with a core 3 which is of a multi-plate type, in which: a pair of dish-like metallic plates each provided with a pair of communication holes in its opposite end portions have their peripheral edge portions brought into fluid-tight contact and connected with each other to form an heat exchanger element 12; a plurality of the thus formed elements 12 are stacked together into a pile, and connected with each other through their communication holes.
  • a pile thus formed has its top portion covered with an upper end plate 15.
  • This upper end plate 15 of the core 3 is provided with a pair of openings in its opposite end portions, in which openings a pair of inlet/outlet convex portions 1 are fixedly mounted to project upward as viewed in Fig. 1.
  • the above-mentioned pile has its bottom portion covered with a lower end plate having no communication hole, so that the core 3 is formed.
  • an outer fin 16 is interposed between adjacent ones of these heat exchanger elements 12.
  • each of the inlet/outlet convex portions 1 of the core 3 is constructed of a small-diameter pipe.
  • a right-hand one of these inlet/outlet convex portions or pipes 1 as viewed in Fig. 1 is fixedly mounted in a corresponding one of a pair of through-hole portions 4 of the casing 5 by means of soldering and like fastening means, so that this right-hand one is brought into fluid-tight contact with the corresponding one of the through-hole portions 4 of the casing 5.
  • a left-hand one of the inlet/outlet convex portions or pipes 1 of the core 3 has its upper end portion connected with a lower end portion of the bellows 6 interposed between the left-hand one of the inlet/outlet convex portions or pipes 1 and a short pipe 10.
  • this short pipe 10 has its upper end portion brought into fluid-tight contact with a top through-hole portion 4 of a short sleeve portion 7 of the casing 5 and fixedly mounted in this top through-hole portion 4 by means of soldering and like fastening means.
  • the short sleeve portion 7 of the casing 5 is provided in an outer peripheral surface of the casing 5 in a position corresponding to that of the left-hand one of the inlet/outlet convex portions 1 of the core 3 to project radially outwardly therefrom.
  • An inner diameter of the short sleeve portion 7 of the casing 5 is sufficiently larger than an outer diameter of the bellows 6 to permit the bellows 6 to deform laterally.
  • a hot oil serving as a first fluid 17 is introduced into the individual heat exchanger elements 12 of the core 3 through a right-hand one of the inlet/outlet convex portions 1 of the core 3, as shown in Fig. 1.
  • Such a first fluid or hot oil 17 thus passed through the core 3 is then discharged out of the left-hand one of the inlet/outlet convex portions 1 of the core 3.
  • cold water serving as a second fluid 18 is introduced into the casing 5 from a left-hand inlet opening (not shown), passes through the casing 5, and is then discharged from a right-hand outlet opening (not shown) of the casing 5, wherein heat exchange is performed between the hot oil serving as the first fluid 17 and the cold water serving as the second fluid 18.
  • a difference in thermal expansion appears between the each of the elements 12 of the core 3 and the casing 5.
  • Such difference in thermal expansion therebetween is absorbed by deformation of the bellows 6, as shown in Fig. 2.
  • deformation of the bellows 6 shown in Fig. 2 is exaggerated for the purpose of illustration.
  • An actual amount of such deformation of the bellows 6 is very small in most cases.
  • the bellows 6 is capable of absorbing any difference in thermal expansion between the components of the heat exchanger of the present invention to reduce thermal stresses imposed on base portions (i.e., root portions) of the inlet/outlet convex portions 1 of the core 3.
  • Fig. 3 shows a second embodiment of the heat exchanger of the present invention, which is adapted to treat a highly pressurized fluid passing through the core 3.
  • This second embodiment differs from the first embodiment of the present invention in that: the second embodiment has the left-hand one of the inlet/outlet convex portions 1 constructed of a pipe member 10; and, a flange member 19 in the second embodiment is fixedly and integrally mounted on an upper end portion of the pipe member 10.
  • the bellows 6 is interposed between: an end portion of the short sleeve-like portion 7 of the casing 5; and, an outer peripheral edge portion of the flange member 19 fixedly mounted on the upper end portion of the pipe member 10, wherein the short sleeve-like portion 7 projects outward from the peripheral edge portion of an insertion portion 4a of the casing 5, as shown in Fig. 3. Since the second embodiment of the heat exchanger of the present invention has the above construction, there is no fear that the bellows 6 is subjected to the pressure of the highly pressurized fluid such as the first fluid 17 passing through the core 3. In operation, a difference in thermal expansion between the core 3 and the casing 5 is absorbed by such a flexible bellows 6.
  • the bellows 6 is disposed in the outlet side of the first fluid 17 in each of the first and the second embodiment of the present invention, it is also possible for the bellows 6 to be disposed in the inlet side of the first fluid 17. Furthermore, it is also possible to provide the bellows 6 in each of the outlet and the inlet side of the first fluid 17.
  • a third embodiment of the heat exchanger of the present invention is shown in Fig. 4. More specifically, in the third embodiment, an inner flange portion 8 of the casing 5 is provided in the root portion of the sleeve-like portion 7 of the casing 5 of the first embodiment of the present invention shown in Fig. 1 to form the third embodiment shown in Fig. 4.
  • the inner flange portion 8 is sandwiched between: the upper end plate 15 of the core 3; and, a flat surface portion (i.e., flange member 9) of a small reservoir portion 11.
  • the inner flange portion 8 of the casing 5 is held by holding means 9, 15, wherein the holdingmeans 9, 15 is constructed of the upper end plate 15 of the core 3 and the flat surface portion (i.e., flange member 9) of the small reservoir portion 11, as is clear from Fig. 4.
  • the small reservoir portion 11 is laterally slidable relative to the inner flange portion 8 of the casing 5.
  • the sleeve-like portion 7 assumes a circular truncated cone shape. Consequently, in operation, the root portions of the inlet/outlet convex portions 1 in the third embodiment of the present invention shown in Fig. 4 are free from any bending moment resulted from a difference in thermal expansion between the components of the heat exchanger.
  • the inlet/outlet convex portion 1 is also deformed when the bellows 6 is deformed.
  • the root portion of the inlet/outlet convex portion 1 is subjected to a considerably large amount of bending moment (expressed by the arrow of Fig. 6).
  • the holding means 9, 15 is capable of effectively minimizing such bending moment.
  • Fig. 5 is a fourth embodiment of the heat exchanger of the present invention, in which the holding means 9, 15 is constructed of: the flange member 9 mounted on an outer peripheral portion of the inlet/outlet convex portion 1; and, the upper end plate 15 of the core 3 to permit the inner flange portion 8 of the casing 5 to laterally slidably move relative to the holding means 9, 15.
  • the bellows 6 of the heat exchanger of the present invention having the above construction is capable of sufficiently absorbing any difference in thermal expansion between the core 3 and the casing 5 even when a difference in length between the core 3 and the casing 5 is produced due to their thermal expansion.
  • the heat exchange of the first embodiment of the present invention is provided with the bellows 6 between the top opening portion of the short sleeve portion 7 of the casing 5 and the inlet/outlet convex portion 1 of the core 3, it is possible to prevent the bellows 6 from being exposed outward. Further, it is also possible to permit the bellows 6 to be smoothly deformed within the short sleeve portion 7 of the casing 5, which makes it possible to sufficiently absorb any difference in thermal expansion between the core 3 and the casing 5.
  • the construction of the heat exchanger of the present invention shown in Fig. 3 is capable of minimizing any stress imposed on the bellows 6.
  • the third embodiment of the heat exchanger of the present invention is provided with the holding means 9, 15 in the root portion of the inlet/outlet convex portion 1 of the core 3. Since such a holding means 9, 15 is slidably movable relative to the inner flange portion 8 of the casing 5, it is possible for the resiliency of such a bellows 6 to minimize any bending moment appearing in the root portion of the inlet/outlet convex portion 1 of the core 3, which improves the root portion of the inlet/outlet convex portion 1 of the core 3 in reliability.

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)
EP00308062A 2000-09-15 2000-09-15 Echangeur de chaleur Expired - Lifetime EP1189008B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE60006813T DE60006813T2 (de) 2000-09-15 2000-09-15 Wärmetauscher
EP00308062A EP1189008B1 (fr) 2000-09-15 2000-09-15 Echangeur de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00308062A EP1189008B1 (fr) 2000-09-15 2000-09-15 Echangeur de chaleur

Publications (2)

Publication Number Publication Date
EP1189008A1 true EP1189008A1 (fr) 2002-03-20
EP1189008B1 EP1189008B1 (fr) 2003-11-26

Family

ID=8173265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00308062A Expired - Lifetime EP1189008B1 (fr) 2000-09-15 2000-09-15 Echangeur de chaleur

Country Status (2)

Country Link
EP (1) EP1189008B1 (fr)
DE (1) DE60006813T2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005828A1 (fr) * 2002-07-04 2004-01-15 Behr Gmbh & Co. Kg Echangeur thermique, notamment echangeur air/air destine a des vehicules
EP1930680A1 (fr) * 2006-11-21 2008-06-11 Behr GmbH & Co. KG Transmetteur thermique de couche doté d'un dispositif de découplage
DE202008011555U1 (de) * 2008-08-28 2010-01-07 Autokühler GmbH & Co. KG Sammelkasten für einen Ladeluftkühler
CN102538520A (zh) * 2012-02-28 2012-07-04 上海艾克森集团有限公司 一种全焊接板式换热器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050738A1 (de) * 2005-10-22 2007-04-26 Modine Manufacturing Co., Racine Wärmetauscher in Plattenbauweise
DE102015115147A1 (de) * 2015-09-09 2017-03-09 Volkswagen Aktiengesellschaft Wärmetauscher und Verfahren zur Herstellung eines solchen Wärmetauschers
DE102015012505B4 (de) * 2015-09-24 2017-08-03 Audi Ag Dichtungsanordnung für eine Anschlussvorrichtung und Anschlussvorrichtung für eine Klimaanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850231A (en) * 1973-05-24 1974-11-26 Combustion Eng Lmfbr intermediate heat exchanger
DE3341263A1 (de) * 1983-11-15 1985-05-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Waermetauscher
JPH04340088A (ja) * 1991-02-04 1992-11-26 Kazumi Seisakusho:Kk プレートフィン式熱交換器
JPH07229687A (ja) * 1994-02-16 1995-08-29 Hitachi Ltd プレート式熱交換器
WO1996017216A1 (fr) * 1993-05-26 1996-06-06 Electricite De France Echangeur de chaleur pour fluide contamine
WO1998000679A1 (fr) * 1996-06-28 1998-01-08 Alfa Laval Ab Echangeur de chaleur a plaques dote de tuyaux de connexion a garniture presentant des soufflets
JP2000329492A (ja) * 1999-05-20 2000-11-30 Toyo Radiator Co Ltd 熱交換器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850231A (en) * 1973-05-24 1974-11-26 Combustion Eng Lmfbr intermediate heat exchanger
DE3341263A1 (de) * 1983-11-15 1985-05-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Waermetauscher
JPH04340088A (ja) * 1991-02-04 1992-11-26 Kazumi Seisakusho:Kk プレートフィン式熱交換器
WO1996017216A1 (fr) * 1993-05-26 1996-06-06 Electricite De France Echangeur de chaleur pour fluide contamine
JPH07229687A (ja) * 1994-02-16 1995-08-29 Hitachi Ltd プレート式熱交換器
WO1998000679A1 (fr) * 1996-06-28 1998-01-08 Alfa Laval Ab Echangeur de chaleur a plaques dote de tuyaux de connexion a garniture presentant des soufflets
JP2000329492A (ja) * 1999-05-20 2000-11-30 Toyo Radiator Co Ltd 熱交換器

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 196 (M - 1397) 16 April 1993 (1993-04-16) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 11 26 December 1995 (1995-12-26) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005828A1 (fr) * 2002-07-04 2004-01-15 Behr Gmbh & Co. Kg Echangeur thermique, notamment echangeur air/air destine a des vehicules
EP2410277A1 (fr) * 2002-07-04 2012-01-25 Behr GmbH & Co. KG Echangeur thermique, notamment refroidisseur d'air de suralimentation pour véhicules automobiles
EP1930680A1 (fr) * 2006-11-21 2008-06-11 Behr GmbH & Co. KG Transmetteur thermique de couche doté d'un dispositif de découplage
DE202008011555U1 (de) * 2008-08-28 2010-01-07 Autokühler GmbH & Co. KG Sammelkasten für einen Ladeluftkühler
CN102538520A (zh) * 2012-02-28 2012-07-04 上海艾克森集团有限公司 一种全焊接板式换热器

Also Published As

Publication number Publication date
EP1189008B1 (fr) 2003-11-26
DE60006813D1 (de) 2004-01-08
DE60006813T2 (de) 2004-09-23

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