EP2469210B1 - Échangeur de chaleur à plaques empilées - Google Patents

Échangeur de chaleur à plaques empilées Download PDF

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Publication number
EP2469210B1
EP2469210B1 EP11194398.1A EP11194398A EP2469210B1 EP 2469210 B1 EP2469210 B1 EP 2469210B1 EP 11194398 A EP11194398 A EP 11194398A EP 2469210 B1 EP2469210 B1 EP 2469210B1
Authority
EP
European Patent Office
Prior art keywords
plates
fluid
cooled
exchanger
flow
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.)
Not-in-force
Application number
EP11194398.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2469210A3 (fr
EP2469210A2 (fr
Inventor
Jorge Ibarz Castello
Carlos Rodrigo Marco
José Antonio De La Fuente Romero
Marta Ramos Romero
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 Termico SA
Original Assignee
Valeo Termico SA
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 Termico SA filed Critical Valeo Termico SA
Publication of EP2469210A2 publication Critical patent/EP2469210A2/fr
Publication of EP2469210A3 publication Critical patent/EP2469210A3/fr
Application granted granted Critical
Publication of EP2469210B1 publication Critical patent/EP2469210B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F28D7/1684—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 the conduits having a non-circular cross-section
    • F28D7/1692—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 the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • 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
    • 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
    • F28D9/0056—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 with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates
    • 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
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • 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
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/424—Means comprising outside portions integral with inside portions
    • F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • 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
    • 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations

Definitions

  • the present invention relates to a stacked plate heat exchanger.
  • the invention is particularly applicable to any type of heat exchanger mounted in the compartment of an engine, in particular to the exhaust gas recirculation exchangers of an engine (Exhaust Gas Recirculation Coolers or EGRC).
  • exhaust gas recirculation Coolers Exhaust Gas Recirculation Coolers or EGRC.
  • EGR exchangers on the market is a metal heat exchanger typically made of stainless steel or aluminum.
  • EGR heat exchanger There are essentially two types of EGR heat exchanger: a first type is composed of a carcass inside which is arranged a bundle of tubes for the passage of gases, the refrigerant flowing in the carcass outside the tubes, and the second type has a series of parallel plates forming the heat exchange surfaces, the exhaust gas and the refrigerant circulating between two plates, in alternating layers, fins that can be provided to improve the exchange of heat. heat.
  • the loop of the recirculation system further comprises an EGR valve regulating the passage of exhaust gases through the heat exchanger.
  • Stacked plate heat exchangers are known in which each plate has a longitudinal closing side wall, each pair of plates being mounted with its respective lateral walls arranged at the longitudinal ends to ensure the separation and closure of the gas and fluid circuits. refrigerant.
  • Each circuit may also be of the "I" shaped linear type, where the fluid inlet and the fluid outlet are disposed at opposite ends; or it may be of the U-shaped type, where the fluid inlet and the fluid outlet occupy adjacent positions at the same open end, the opposite end being closed, and defining a forward passage and a passage back through the channels of the plates.
  • the closed end for the return of the fluid is generally constituted by a closed reservoir.
  • EGR exchanger components are metallic so that the exchangers are assembled by mechanical means before being welded or arc or laser welded to provide an adequate level of sealing for the intended application.
  • the EGR exchanger may also include components made of plastic, which may perform a single function or several functions as a single part.
  • EGR exchangers The main function of EGR exchangers is the exchange of heat between the exhaust gas and the refrigerant for the purpose of cooling the gases.
  • the EGR exchangers must also fulfill other secondary functions, including assembly with the engine block, connection with the refrigerant or connection with the exhaust gas circuit.
  • JP-A-2010112201 discloses a stacked plate heat exchanger according to the preamble of claim 1.
  • the subject of the present invention is a stacked plate heat exchanger designed to overcome the drawbacks of heat exchangers known in the art, making it possible to reduce or even eliminate the proportion of the inlet flow of the fluid to be cooled which does not enter the heat exchanger. exchanger and is introduced directly into the output stream of the fluid to be cooled in the "U" configuration exchangers.
  • the stacked plate heat exchanger, object of the present invention comprises the features of claim 1.
  • the separation means make it possible to integrate the closure function between the inlet flow and the outlet flow of the fluid to be cooled, if although they act as a separation barrier between the inlet flow and the outlet flow of the fluid to be cooled and furthermore avoid, as far as possible, the risk of diverting the flow between said inlet and said outlet.
  • the separation means comprise a barrier wall coupled to the outer face of the fixing flange, said wall being capable of dividing the inlet and outlet zone of the fluid to be cooled at said open end of the plate assembly. stacked. Said wall must be adapted to the design of the plates in each configuration.
  • said separating wall is capable of coming into direct contact with a shutter or valve of an EGR valve to close the inlet flow and the outlet flow of the fluid to be cooled through the exchanger.
  • Said wall being integrated in the outer part of the flange, it also plays the role of interface between the exchanger and the valve or the EGR pipe.
  • said wall may be an independent piece coupled to the flange or is manufactured as a single piece integrated into the flange.
  • the configuration of the flange can also vary depending on the configuration of the EGR exchanger.
  • the heat exchanger 1 EGR comprises a plurality of stacked plates 2 between which the gas to be cooled and the refrigerant fluid circulate between two independent circuits defined by said plates 2, in alternating layers.
  • Each plate 2 has a longitudinal longitudinal closing wall 3, as shown by the Figures 1 and 2 each pair of plates 2 being mounted with their respective side walls 3 disposed in the longitudinal ends for separation and closure of the circuits.
  • the exchanger 1 also comprises a carcass 4 intended to receive the set of stacked plates 2, as shown by the Figures 3 and 4 as well as a fastening flange 5 coupled in said open end and a gas reservoir 6 in said closed end.
  • the configuration of the flange 5 may also vary depending on the configuration of the exchanger 1.
  • the circuit of the gas to be cooled has a configuration in "U" where the inlet and the outlet of the gases occupy adjacent positions at the same open end of the set of stacked plates 2, the end opposite being closed, and said plates defining forward channels and return channels.
  • the exchanger 1 also comprises a wall 7 forming a barrier for separating the inlet flow and the gas outlet stream, said wall 7 being integrated with the fixing flange 5.
  • Said wall 7 can also be an independent part coupled to the flange 5 or be manufactured as a single piece integrated flange 5.
  • the stacked plate EGR exchangers may have two possible “U” configurations, namely horizontal or vertical, as will be explained later.
  • FIGS 1 to 4 show a first embodiment of the invention in which the exchanger 1 is of the type of "U" vertical configuration, that is, the gas flow is directed through all the channels of the gas circuit of the half of the plates 2, and returns through other channels of the gas circuit belonging to the rest of the plates 2 completely separate.
  • the separating wall 7 is integrated in the flange 5 in a substantially horizontal position and welded in the oven to an intermediate plate 2a for separating the inlet flow and the gas outlet flow.
  • the separating wall 7 makes it possible to integrate the closure function between the inlet flow and the gas outlet flow, so that it acts as a separating barrier between the inlet flow and the flow the gas outlet and further avoids as far as possible the risk of diverting the flow between said inlet and said outlet.
  • white arrows illustrate the direction of the input flow and the gas output flow and a black arrow illustrates the possible diversion between said flows.
  • Said separating wall 7 is coupled to the external face of the fastening flange 5, said wall 7 being capable of dividing the inlet and outlet gas zone at said open end of the set of stacked plates 2.
  • Said wall 7 must be adapted to the design of the plates 2 in each configuration.
  • Said separating wall 7 is also capable of coming into direct contact with a shutter or valve of an EGR valve (not shown) to close the inlet flow and the gas outlet flow through the exchanger 1.
  • Said wall 7 being integrated in the outer part of the flange 5, it also plays the role of interface between the exchanger 1 and the valve or the EGR pipe.
  • FIGS 5 to 9 illustrate a second embodiment of the invention in which the exchanger 1 'is of the type of horizontal "U" configuration, in other words the flow of the gases is directed through half of the channels of all the plates 2, and returns through the other half of the channels of the gas circuit belonging to the same plates 2.
  • the partition wall 7 is integrated in a substantially vertical position and welded in the oven to the plates 2 in an intermediate position for separating the inlet flow and the gas outlet flow.
  • the separating wall 7 comprises housings 8 that can be nested in the ends of the plates 2, as illustrated by FIG. figure 7 .
  • this interlocking junction makes it possible to reduce as much as possible the risk of possible internal diversion, and thus to improve the heat efficiency of the exchanger 1.
  • the wall 7 is also in direct contact with the plates 2 due to its welding in the oven with said plates 2, and provided with fins or disruptive elements (not shown) to reduce the risk of diversion possible.
  • the carcass 4 furthermore comprises two lateral reservoirs 4a joined to each other, intended to receive the lateral flow of entry and exit of refrigerant into the set of stacked plates 2, as illustrated by FIGS. figures 3 and 8 .
  • the exchanger 1 also comprises an inlet well 9 and a refrigerant outlet well 10 disposed on opposite sides of the carcass 4, as illustrated by FIGS. figures 4 and 9 .
  • This design of side plates 2 can allow the lateral connection of the coolant wells 9, 10 so as to ensure a distribution of the side coolant in the exchanger 1, which offers many advantages for the integration of a heat exchanger Stacked plate EGR 2 in a small or complex space of the engine block environment.

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)
EP11194398.1A 2010-12-22 2011-12-19 Échangeur de chaleur à plaques empilées Not-in-force EP2469210B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201031917A ES2397882B1 (es) 2010-12-22 2010-12-22 Intercambiador de calor de placas apiladas.

Publications (3)

Publication Number Publication Date
EP2469210A2 EP2469210A2 (fr) 2012-06-27
EP2469210A3 EP2469210A3 (fr) 2015-04-15
EP2469210B1 true EP2469210B1 (fr) 2018-12-19

Family

ID=45440225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11194398.1A Not-in-force EP2469210B1 (fr) 2010-12-22 2011-12-19 Échangeur de chaleur à plaques empilées

Country Status (3)

Country Link
EP (1) EP2469210B1 (es)
KR (1) KR20120071335A (es)
ES (2) ES2397882B1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3021065A4 (en) * 2013-07-12 2017-04-19 Cordón Urbiola, Jose, Luis Heat recovery unit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214467A1 (de) * 2002-03-30 2003-10-09 Modine Mfg Co Abgaswärmetauscher für Kraftfahrzeuge
EP1999423B1 (de) * 2006-03-16 2015-06-03 MAHLE Behr GmbH & Co. KG Abgaskühler für ein kraftfahrzeug
KR101298382B1 (ko) * 2006-07-03 2013-08-20 모다인 매뉴팩츄어링 컴파니 Ｅｇｒ 쿨러
KR100827329B1 (ko) * 2007-02-28 2008-05-06 주식회사 코렌스 스택형 이지알 쿨러
EP2137477B1 (fr) * 2007-04-13 2018-09-12 Valeo Termico S.A. Échangeur de chaleur pour gaz
KR100823654B1 (ko) * 2007-10-02 2008-04-21 주식회사 코렌스 이지알 쿨러
KR100890337B1 (ko) * 2007-12-21 2009-03-25 지엠대우오토앤테크놀로지주식회사 디젤엔진의 배기가스 재순환장치의 쿨러
JP2010112201A (ja) * 2008-11-04 2010-05-20 Tokyo Radiator Mfg Co Ltd Ｕターン型ｅｇｒクーラ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2469210A3 (fr) 2015-04-15
ES2716524T3 (es) 2019-06-13
KR20120071335A (ko) 2012-07-02
EP2469210A2 (fr) 2012-06-27
ES2397882B1 (es) 2013-10-17
ES2397882A1 (es) 2013-03-12

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