EP1189009A1 - Echangeur de chaleur du type empilé - Google Patents

Echangeur de chaleur du type empilé Download PDF

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Publication number
EP1189009A1
EP1189009A1 EP00308063A EP00308063A EP1189009A1 EP 1189009 A1 EP1189009 A1 EP 1189009A1 EP 00308063 A EP00308063 A EP 00308063A EP 00308063 A EP00308063 A EP 00308063A EP 1189009 A1 EP1189009 A1 EP 1189009A1
Authority
EP
European Patent Office
Prior art keywords
core support
slits
pair
edge
elements
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Withdrawn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
EP00308063A
Other languages
German (de)
English (en)
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 EP00308063A priority Critical patent/EP1189009A1/fr
Publication of EP1189009A1 publication Critical patent/EP1189009A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • 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
    • F28F2240/00—Spacing means
    • 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 generally to a "stacked" type heat exchanger having a core consisting of a plurality elements and having a core support, and, more particularly, to a "stacked" type heat exchanger having a simple structure for absorbing or reducing a thermal stress that may be induced between the elements and the core support.
  • a "stacked" type heat exchanger comprises a core and a core support.
  • the core is in the form of a stack of elements, each element consisting of a pair of dish-like plates that are placed one on top of the other, each plate having communication apertures formed at opposed ends thereof.
  • the pair of plates are joined together at their peripheries in a liquidtight fashion to form an element, and a plurality of elements are stacked in a liquidtight fashion by way of the communication apertures.
  • the core support is joined to one end of the stack of the elements in the stacked direction.
  • the core support has at its opposed ends a pair of port openings that are joined to the communication apertures in the elements in a liquidtight fashion.
  • a high-temperature fluid flows through the interior of the elements , and a cooling water is passed through the exterior of the elements.
  • a "stacked" type heat exchanger comprising a core including a plurality of elements, each of the plurality of elements consisting of a pair of plates, each of the plates having communication apertures formed at opposed ends in the longitudinal direction, at least one of the plates being shaped into a dish, the plates being placed one on top of the other with their peripheries being jointed together in a liquidtight fashion, the plurality of elements being joined together in a liquidtight fashion by way of the communication apertures at the opposed ends , to thereby form the core; and a planar core support adapted to be joined to one end of the core, the core support having a pair of port openings that are in alignment with the communication apertures at the opposed ends; wherein the core support includes a plurality of slits that are disposed between the pair of port openings so as to intersect an imaginary line joining the pair of port openings , the plurality of slits being slightly deformable when a thermal stress is applied to regions between the
  • Each of the plurality of elements and the core support may have elongated planar surfaces.
  • the plurality of slits may include a first slit formed in the core support so as to extend from one edge in its transverse direction up to a position beyond the central portion in the transverse direction of the core support; and a second slit formed in the core support so as to extend from the other edge in its transverse direction up to a position beyond the central portion in the transverse direction of the core support.
  • the plurality of slits may include a pair of arcuate edge slits formed circumferentially around the port opening in the elongated core support, the pair of edge slits extending from adjacent edges of the core support toward each other; and an arcuate central slit formed concentrically with respect to the pair of edge slits, but with a slight radially inward offset relative to the pair of edge slits, the central slit having opposed ends that extend up to the vicinity of the adjacent edges .
  • the plurality of slits further may includes a pair of auxiliary edge slits extending from the adjacent edges concentrically with respect to the central slit, but positioned radially opposite to the pair of edge slits with respect to the central slit.
  • FIG. 1 is a top plan view of a "stacked" type heat exchanger in accordance with a first embodiment of the present invention
  • FIG. 2 is a schematic sectional view taken along the line II-II of FIG. 1 and viewed from the direction of the arrow.
  • FIG. 3 is a top plan view of a second embodiment of the present invention
  • FIG. 4 is a top plan view of the major part of a third embodiment thereof.
  • the "stacked" type heat exchanger shown in FIGs. 1 and 2 comprises a multiplicity of elements 2, a multiplicity of annular spacers 7 interposed between the elements 2, and a core support 5 disposed at one end in the stacked direction.
  • the element 2 consists of a pair of elongated plates each having communication apertures 1 formed at its opposed ends in the longitudinal direction, at least one of the plates being shaped into a dish, the pair of plates being placed one on top of the other, with their peripheral portions being joined together in a liquidtight fashion.
  • the element 2 has a contour similar to that of the core support 5 of FIG. 1.
  • the adjacent elements 2 are joined together in a liquidtight fashion at the communication apertures 1 by way of the annular spacers 7, with outer fins 9 being interposed between the external surfaces of the elements 2.
  • the core support 5 is placed by way of the spacers 7. As shown in FIG. 1, the core support 5 has at opposed ends in its longitudinal direction a pair of port openings 4 that are in alignment with the communication apertures 1.
  • the core support 5 has a thickness which is typically greater than that of each place of the elements 2.
  • the core support 5 is provided with first and second slits 6 and 6a that are positioned in proximity to the port openings 4 associated therewith. More specifically, the first slit 6 near the port opening 4 on one hand extends from one edge in the transverse direction to the vicinity of the other edge, and the second slit 6 near the port opening 4 on the other extends from the other edge in the transverse direction to the vicinity of the one edge.
  • the slits 6 and 6a intersect an imaginary line A joining the centers of the pair of port openings 4 and are arranged symmetrically with respect to the center of each element.
  • a boss 8 is joined to the opening edge of the port openings 4 of the core support 5, with a piping not shown being connected to the fore-end of the boss 8. Then, a high-temperature fluid flows through the boss 8 on one hand into each element 2 and communicates through the interior of each element 2 in the longitudinal direction, after which it exits the heat exchanger through the boss on the other not shown. Cooling water is passed through the external surfaces of each element 2, the outer fins 9 and the external surface of the core support 5 to thereby cool the high-temperature fluid lying within each element 2.
  • the thermal expansion of the elements 2 is greater than that of the core support 5, giving rise to a thermal stress therebetween.
  • the thermal stress causes the slits 6 to deform toward the extension to thereby absorb the difference of thermal expansion between the elements 2 and the core support 5.
  • the opening edges of the communication apertures 1 of each element 2 are subjected to a restricted thermal stress.
  • FIG. 3 there is shown the second embodiment having, along the opening edge of the port opening 4 on one hand, a pair of edge slits 6b extending arcuately from the adjacent edges and a single central slit 6c positioned inside of the pair of edge slits 6b.
  • the central slit 6c is in the shape of an arc and has opposed ends that terminate short of the edges of the core support 5.
  • the edge slits 6b are arranged radially outside of the slit 6c and each have an open end on one hand and a closed end on the other that extends up to the vicinity of the middle of slit 6c.
  • FIG. 4 there is depicted the third embodiment further having, in addition to the features of the FIG. 3 embodiment, a pair of auxiliary edge slits 6d arranged radially inside of the central slit 6c and extending arcuately from the adjacent edges .
  • the FIG. 4 embodiment reduces the rigidity of the core support 5 itself to facilitate the slit deformation induced by the thermal stress.
  • the "stacked" type heat exchanger as defined in claim 1 enables the difference of thermal expansion between the elements 2 and the core support 5, attributable to the difference of temperature between the fluid passing through the interior of the elements 2 and the fluid passing through the external surface of the core support 5 , to easily be absorbed by the slits 6 formed in the core support 5. It is therefore possible to minimize the thermal stress applied to the communication apertures 1 in the elements 2 to thereby prevent any possible cracks, thus providing a "stacked" type heat exchanger having an extended service life.
  • the entire core support 5 can deform in a well-balanced manner when a thermal stress is applied thereto, by virtue of the first slit 6 formed in the core support 5 so as to extend from one edge in the transverse direction and by virtue of the second slit 6a formed in the core support 5 so as to extend from the other edge in the transverse direction.
  • a highly reliable "stacked" type heat exchanger can thus be provided.
  • the "stacked" type heat exchanger as defined in claim 3 allows the core support 5 to be deformed easier, when subjected to a thermal stress, by the provision of the pair of arcuate edge slits 6b and the arcuate central slit 6c, to thereby ensure a well-balanced deformation of the core support 5.
EP00308063A 2000-09-15 2000-09-15 Echangeur de chaleur du type empilé Withdrawn EP1189009A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00308063A EP1189009A1 (fr) 2000-09-15 2000-09-15 Echangeur de chaleur du type empilé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00308063A EP1189009A1 (fr) 2000-09-15 2000-09-15 Echangeur de chaleur du type empilé

Publications (1)

Publication Number Publication Date
EP1189009A1 true EP1189009A1 (fr) 2002-03-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00308063A Withdrawn EP1189009A1 (fr) 2000-09-15 2000-09-15 Echangeur de chaleur du type empilé

Country Status (1)

Country Link
EP (1) EP1189009A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1593923A1 (fr) * 2004-05-06 2005-11-09 Movi Alluminium S.r.l. Echangeur de chaleur
WO2012045845A1 (fr) * 2010-10-06 2012-04-12 Behr Gmbh & Co. Kg Échangeur thermique
WO2018139649A1 (fr) * 2017-01-30 2018-08-02 京セラ株式会社 Échangeur de chaleur
US10260822B2 (en) 2013-12-20 2019-04-16 Alfa Laval Corporate Ab Plate heat exchanger with mounting flange
GB2593472A (en) * 2020-03-23 2021-09-29 Reaction Engines Ltd Flat plate heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625301A3 (fr) * 1987-12-23 1989-06-30 Valeo Chausson Thermique Echangeur de chaleur a plaques, notamment pour vehicule automobile, et procede de fabrication permettant d'obtenir un tel echangeur
US5692559A (en) * 1995-05-29 1997-12-02 Long Manufacturing Ltd. Plate heat exchanger with improved undulating passageway

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625301A3 (fr) * 1987-12-23 1989-06-30 Valeo Chausson Thermique Echangeur de chaleur a plaques, notamment pour vehicule automobile, et procede de fabrication permettant d'obtenir un tel echangeur
US5692559A (en) * 1995-05-29 1997-12-02 Long Manufacturing Ltd. Plate heat exchanger with improved undulating passageway

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1593923A1 (fr) * 2004-05-06 2005-11-09 Movi Alluminium S.r.l. Echangeur de chaleur
WO2005108895A1 (fr) * 2004-05-06 2005-11-17 Movi Alluminium S.R.L. Echangeur de chaleur
WO2012045845A1 (fr) * 2010-10-06 2012-04-12 Behr Gmbh & Co. Kg Échangeur thermique
US8826663B2 (en) 2010-10-06 2014-09-09 Behr Gmbh & Co. Kg Heat exchanger
US10260822B2 (en) 2013-12-20 2019-04-16 Alfa Laval Corporate Ab Plate heat exchanger with mounting flange
WO2018139649A1 (fr) * 2017-01-30 2018-08-02 京セラ株式会社 Échangeur de chaleur
JPWO2018139649A1 (ja) * 2017-01-30 2019-11-14 京セラ株式会社 熱交換器
JP2022008923A (ja) * 2017-01-30 2022-01-14 京セラ株式会社 熱交換器
US11486648B2 (en) 2017-01-30 2022-11-01 Kyocera Corporation Heat exchanger
GB2593472A (en) * 2020-03-23 2021-09-29 Reaction Engines Ltd Flat plate heat exchanger
WO2021191590A1 (fr) * 2020-03-23 2021-09-30 Reaction Engines Ltd Échangeur de chaleur à plaques plates
GB2593472B (en) * 2020-03-23 2023-11-01 Reaction Engines Ltd Flat plate heat exchanger

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