EP2726805B1 - Lame d'echangeur de chaleur a zone de contournement - Google Patents

Lame d'echangeur de chaleur a zone de contournement Download PDF

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Publication number
EP2726805B1
EP2726805B1 EP12730956.5A EP12730956A EP2726805B1 EP 2726805 B1 EP2726805 B1 EP 2726805B1 EP 12730956 A EP12730956 A EP 12730956A EP 2726805 B1 EP2726805 B1 EP 2726805B1
Authority
EP
European Patent Office
Prior art keywords
plate
fluid
plates
upstream
zone
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.)
Active
Application number
EP12730956.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2726805A1 (fr
Inventor
Laurent Odillard
Jean-Pierre Galland
Sébastien Devedeux
Demetrio ONETTI
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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
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Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Priority to PL12730956T priority Critical patent/PL2726805T3/pl
Publication of EP2726805A1 publication Critical patent/EP2726805A1/fr
Application granted granted Critical
Publication of EP2726805B1 publication Critical patent/EP2726805B1/fr
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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
    • 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
    • F28D9/0006—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 plate-like or laminated conduits being enclosed within a pressure vessel
    • 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
    • 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0082—Charged air coolers
    • 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
    • F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction

Definitions

  • the invention relates to a blade for a heat exchanger of a motor vehicle, a beam of blades of such an exchanger and a heat exchanger provided with such a beam. It relates in particular to the field of charge air coolers.
  • a blade according to the preamble of claim 1 is known from document FR 2855604 .
  • turbocharged engine there is known a motor vehicle engine comprising a turbocharger and called turbocharged engine.
  • a turbocharged engine can be powered by an air intake system or by a system for admitting a mixture of air and exhaust gas collected at the engine exhaust recirculated exhaust.
  • engine air will be understood to mean both the air coming from an air intake system and the mixture coming from an intake system of a mixture of air and fuel gas. recirculated exhaust.
  • intercooler-type charge air coolers allowing a heat exchange between the charge air circulating in the tubes and a flow of air coming from the outside of the vehicle, flowing between the tubes.
  • heat exchangers comprising a beam formed of a superimposed stack of blades, allowing a heat exchange between the charge air and a cooling fluid, generally liquid.
  • a blade is in the form of an elongated rectangular plate comprising two through holes. The stacked blades alternately form circulation channels for the charge air to be cooled and circulation channels for the cooling fluid.
  • the supercharging air to be cooled enters the heat exchanger by one of its lateral faces, called the upstream face, so as to circulate in the circulation channels for the charge air to be cooled to be cooled by contact with the blades located above and below in which the cooling fluid circulates.
  • the cooled supercharging air then leaves the exchanger via the opposite lateral face, called the downstream face.
  • upstream and downstream also denote in the following description, respectively, the inlet and the outlet of the supercharging air flow in the beam of the heat exchanger.
  • intake and collection channels of the cooling fluid are formed in a portion of the beam.
  • the blades thus comprise raised edges, around each of their two orifices, extending perpendicular to the plane of the blade so as to form these inlet and collection channels of the cooling fluid when the blades are stacked.
  • the part of the heat exchanger bundle corresponding to the intake and collection channels of the cooling fluid does not, however, participate in the heat exchange.
  • intake and collection of coolant More particularly, the spaces located around the orifices allow the circulation of supercharging air not or insufficiently cooled from upstream to downstream of the beam, which has major disadvantages in terms of thermal performance.
  • a device 10 is known, illustrated by the figure 1 , comprising a wall 12 attached to the upstream side face 14 of the exchanger and for preventing a portion of the supercharging air flow to enter the heat exchanger beam at the bypass zone.
  • a device is however not satisfactory, especially for mounting reasons.
  • the invention relates to a heat exchanger blade according to claim 1.
  • bypass zone is created by means from the blade. These means are therefore created during the manufacture of the blade and therefore no longer intended to be reported on the beam as was the case in previous solutions.
  • the means from the blade extend perpendicularly to the plane of the blade. Such a configuration facilitates the circulation of the fluid towards the exchange zone.
  • the blade is in the form of a plate comprising two upstream and downstream edges and comprising, in the bypass zone, an intake port for a cooling fluid and a collection orifice for said cooling fluid, the means coming from blade comprising an upstream partition extending from the upstream edge of the blade and configured to block the flow of fluid to the inlet port and / or a downstream partition extending from the downstream edge of the blade; the blade and configured to block the flow of fluid to the right of the collection port.
  • the lengths of the upstream partition and / or the downstream partition are identical to or greater than the largest dimension of the orifices in the direction of the upstream and / or downstream edges.
  • the blade is rectangular and has two long edges and two short edges, said long edges defining said upstream and downstream edges, the inlet orifice and the collection orifice being pierced in a zone. close to one of the short edges.
  • the upstream and downstream partitions are parallel.
  • the upstream and downstream partitions have an oblique distal edge.
  • the means coming from the blade comprise a central partition extending between the intake orifice and the collection orifice.
  • the invention also relates to a beam comprising a plurality of blades as defined above stacked on each other so that two adjacent blades, forming a pair, define a circulation channel for the fluid to be cooled and two blades of two. Different and adjacent pairs form a circulation channel for the coolant.
  • the partitions of two blades of the same pair of blades overlap.
  • a turbulator is disposed between two blades of the same pair of blades so as to promote the exchange of heat between the fluid to be cooled and the cooling fluid, said turbulator comprising a height substantially identical to that of the partitions.
  • the invention also relates to a heat exchanger comprising a beam as defined above.
  • the figure 2 represents a known heat exchanger with a known beam 21 of blades. It will be noted that the blades according to the invention can be used in an exchanger of this type in place of the known blades.
  • Such a heat exchanger 20 allows the exchange of heat between a fluid to be cooled and a cooling fluid.
  • the fluid to be cooled is air. This is not limiting the scope of the present invention for which, in another type of heat exchanger, the fluid to be cooled could be another gas.
  • Such a beam 21 allows a heat exchange between the supercharging air and the cooling fluid, generally liquid.
  • the stacked blades 25 alternately form circulation channels for the charge air to be cooled and circulation channels for the cooling fluid. More precisely, two blades 25 of the same pair form a circulation channel for the supercharging air to be cooled and two blades 25 of two pairs, different and adjacent, form a circulation channel for the cooling fluid.
  • intake and collection channels of the cooling fluid are formed in a part of the bundle 21.
  • the intake pipe 23a and the collection pipe 23b of the exchanger 20 respectively allow the intake and collection of the cooling fluid in the cooling fluid circulation channels.
  • an air intake box 28 to be cooled can be mounted on the upstream open side face of the heat exchanger 20.
  • a collector box 29 of the cooled air can be mounted on the open downstream side face 26 of the heat exchanger 20.
  • the cooling fluid enters the heat exchanger through the intake manifold, circulates in the inlet channel, circulates between the pairs of blades stacked in the fluid circulation channels and then leaves the exchanger through the channel. collection then collection tubing.
  • the invention relates to a blade 30 of a beam for a heat exchanger, illustrated by the figure 3 .
  • a blade 30 is here in the form of an elongated rectangular plate, extending in a plane P along a longitudinal axis X and comprising an upper face (31a), a lower face (not visible), two ends 31b and 31c, an inlet 32 for the cooling fluid and a collection orifice 34 for cooling fluid, arranged in an area near one 31b of the ends of the blade 30.
  • the blade has a shape of bowl (reversed to the figure 3 ), the inlet ports 32 and collection 34 communicating with the bottom of the bowl to define one or more cooling fluid circulation channels.
  • the blade 30 comprises, around the inlet 32 of the cooling fluid, an edge 33 extending perpendicularly to the plane P of the blade 30.
  • the blade 30 comprises around the collection port 34 coolant, an edge 35 extending perpendicularly to the plane P of the blade 30.
  • the edges 33 and 35 respectively form the intake channel and the cooling fluid collection channel, perpendicular to the plane P of the blade, on the height of the beam formed by the stack of blades 30.
  • the blade 30 has a so-called exchange zone, ZE, intended to promote the exchange of heat between the air and the cooling fluid, and a zone, called a bypass zone ZBP, capable of allowing the air to bypass said exchange zone ZE.
  • ZE exchange zone
  • ZBP bypass zone
  • the bypass zone ZBP thus extends between the upstream partition 36 and the downstream partition 37.
  • the exchange zone extends over the remainder of the blade 30. And the passage of the air at the level of said bypass zone ZBP is blocked.
  • Two blades 30 according to the invention can be assembled one on the other, as illustrated by the figure 4 in a pair of blades 30 so as to form a circulation channel for the air flow F to be cooled. More specifically, a blade 30 as illustrated by the figure 3 may be turned over and placed on another unreturned blade, as illustrated by the figure 3 so as to form said pair. Note that the size of the edges 33 and 35 extending from the contour of the orifices perpendicular to the plane P of the blade 30 may be different between the two blades of the same pair of blades so that they are complementary and fit together to form the intake and collection channels when the two blades are assembled in one pair.
  • an internal spacer or turbulator 40 may be inserted, for example before assembly, between two blades 30 of a pair of blades 30. Such a turbulator 40 improves the heat exchange.
  • the ZBP bypass zone is defined substantially by the space created between the upstream partition 36, the downstream partition 37 and the two assembled blades in a pair of pairs.
  • the exchange zone ZE is substantially defined, between the two blades 30 assembled in a pair of blades 30, by the air circulation space into which the turbulator 40 is inserted.
  • FIG 5 which is a cross-sectional view perpendicular to the longitudinal axis X of the blade 30 of a pair of assembled blades 30, the distal ends 36 'and 37', respectively of the partitions 36 and 37, can be configured so that the partitions 36 and 37 are superimposed, overlap or interlock easily.
  • the partitions 36 and 37 may for example have oblique distal edges.
  • the distal end 36 ' is curved inwardly of the space defined by the assembly of two blades 30 and the distal end 37' is bent outwardly of the space defined by the assembly of two
  • the opposite curvatures of the distal ends 36 'and 37' make assembly of the two blades 30 easy.
  • the partitions 36 and 37 of the same blade 30 are not symmetrical with respect to the longitudinal axis X of said blade 30.
  • the partition 36 of one of the blades is offset, according to the direction of the short sides of the blades 30 relative to the partition 37 of the other blade, which facilitates their overlap.
  • the flow of air F passes through the beam 52, between each pair of blades 30 defining an air flow channel to be cooled, from upstream to downstream, so as to be cooled by the circulating cooling fluid, in each cooling fluid circulation channel, between the blades 30 of two different pairs.
  • the partitions 36 and 37 made from the material of the blade 30 form, by stacking the blades 30, an upstream wall (not visible) for blocking the air flow F at the upstream side face of the heat exchanger 50 and a downstream wall 54 for blocking the flow of air F at the downstream side face of the heat exchanger 50.
  • the upstream and downstream walls 54 thus prevent the circulation of air at the level of the zone Bypassing the beam.
  • the exchange zone ZE is defined between the upstream and downstream portions of the bundle which are open to the circulation of the air to be cooled.
  • the means coming from the blade configured so as to force a circulation of the fluid in the exchange zone ZE are disposed both on the upstream face and on the downstream face 26 of the heat exchanger 50
  • the means coming from the blade could be arranged for example only on the upstream face of the heat exchanger 50.
  • the blade 70 comprises a central partition extending between the inlet port 74 and the collection port 76 forming the circulation channels for the cooling fluid.
  • This central partition is here derived from the material of the two blades 70a and 70b and comprises two raised edges 71a and 71b extending substantially perpendicular to the blades 70a and 70b so as to block the flow of air between the exchange zone ZE and the ZBP bypass zone.
  • the central partition further comprises raised flanges 72a and 72b to increase the blockage of the flow between the exchange zone ZE and the bypass zone ZBP between the intake ports 74 and the collection orifice 76.
  • This figure will also show the bowl shape 73 of the blade 70b, designed to guide the cooling fluid between the inlet orifice 74 and the collection orifice 76.
  • the blades 30 as the rest of the beam is metal, for example aluminum and / or aluminum alloys.

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)
EP12730956.5A 2011-06-30 2012-06-28 Lame d'echangeur de chaleur a zone de contournement Active EP2726805B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12730956T PL2726805T3 (pl) 2011-06-30 2012-06-28 Płytka wymiennika ciepła ze strefą obejściową

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1102061A FR2977309B1 (fr) 2011-06-30 2011-06-30 Lame d'echangeur de chaleur a zone de contournement
PCT/EP2012/062585 WO2013001012A1 (fr) 2011-06-30 2012-06-28 Lame d'echangeur de chaleur a zone de contournement

Publications (2)

Publication Number Publication Date
EP2726805A1 EP2726805A1 (fr) 2014-05-07
EP2726805B1 true EP2726805B1 (fr) 2015-08-19

Family

ID=46420188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12730956.5A Active EP2726805B1 (fr) 2011-06-30 2012-06-28 Lame d'echangeur de chaleur a zone de contournement

Country Status (9)

Country Link
US (1) US9903661B2 (zh)
EP (1) EP2726805B1 (zh)
JP (1) JP6184946B2 (zh)
CN (2) CN103890525A (zh)
ES (1) ES2553447T3 (zh)
FR (1) FR2977309B1 (zh)
MX (1) MX338390B (zh)
PL (1) PL2726805T3 (zh)
WO (1) WO2013001012A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018129084A1 (de) 2018-11-19 2020-05-20 Modine Manufacturing Co. Wärmeübertrager mit glatten Seitenwänden
WO2020103980A1 (de) 2018-11-19 2020-05-28 Modine Manufacturing Co. Wärmeübertrager mit glatten seitenwänden

Also Published As

Publication number Publication date
EP2726805A1 (fr) 2014-05-07
FR2977309B1 (fr) 2017-12-29
US9903661B2 (en) 2018-02-27
CN108534572A (zh) 2018-09-14
JP2014518369A (ja) 2014-07-28
MX2014000208A (es) 2014-04-25
ES2553447T3 (es) 2015-12-09
FR2977309A1 (fr) 2013-01-04
US20140216700A1 (en) 2014-08-07
CN103890525A (zh) 2014-06-25
PL2726805T3 (pl) 2016-04-29
JP6184946B2 (ja) 2017-08-23
WO2013001012A1 (fr) 2013-01-03
MX338390B (es) 2016-04-13

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