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EP2710318A1 - Echangeur de chaleur à lamelles - Google Patents

Echangeur de chaleur à lamelles

Info

Publication number
EP2710318A1
EP2710318A1 EP12721847.7A EP12721847A EP2710318A1 EP 2710318 A1 EP2710318 A1 EP 2710318A1 EP 12721847 A EP12721847 A EP 12721847A EP 2710318 A1 EP2710318 A1 EP 2710318A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
channels
fluid
end plates
exchanger according
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.)
Ceased
Application number
EP12721847.7A
Other languages
German (de)
English (en)
Inventor
Gerd Gaiser
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
Eberspaecher Exhaust Technology 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 Eberspaecher Exhaust Technology GmbH and Co KG filed Critical Eberspaecher Exhaust Technology GmbH and Co KG
Publication of EP2710318A1 publication Critical patent/EP2710318A1/fr
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • F28F1/24—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 transversely
    • F28F1/26—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 transversely the means being integral with the element
    • F28F1/28—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 transversely the means being integral with the element the element being built-up from finned sections
    • 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
    • F28F2270/00—Thermal insulation; Thermal decoupling

Definitions

  • the present invention relates to a fin heat exchanger, in particular for vehicle applications.
  • Heat exchangers serve to transfer thermal energy from one fluid to another fluid. During the heat transfer so in particular heat is exchanged, that is, the temperature of the fluids are adjusted. Thus, the first warm fluid is cooled via the heat exchanger by the colder second fluid, with the second fluid warming up, or the first fluid being the colder and being warmed by the second warmer fluid, with the second fluid cooling. Heat exchangers are therefore used in numerous applications. In vehicles, for example, they serve as intercoolers for the cooling of the charge air to be supplied to an internal combustion engine, as exhaust gas heat exchangers or as heat exchangers for the recovery of the heat generated by the internal combustion engine for further use.
  • the present invention therefore deals with the problem of providing a heat exchanger of the type mentioned, an improved or at least alternative embodiment, which is characterized in particular by a simplified production.
  • the present invention is based on the general idea to form a heat exchanger as a lamella heat exchanger.
  • the Laminated heat exchanger a plurality of spaced apart stacked in a stacking direction lamellae, which form a lamella stack.
  • the respective lamellae have openings which are enclosed by collars, wherein the collars of adjacent lamellae are coupled to each other, so that in each case a channel of a channel system for a first flow path of a first fluid is formed in the region of the coupled collar.
  • the stacking of the lamellae and thus the collar thus forms these channels of the channel system which extends through the openings of the respective lamellae and the associated collar.
  • a second flow path of a second fluid is formed between adjacent fins.
  • the second flow path thus arises through the spaced apart lamellae.
  • the fin heat exchanger further has on in the stacking direction remote from each other ends of the fin stack end plates.
  • the end plates are thus arranged with respect to the stacking direction at opposite ends of the plate heat exchanger.
  • the end plates are further configured such that the channels within the end plates are fluidly interconnected.
  • the edges of the respective lamellae on at least one side of the lamellar heat exchanger are designed such that they form a closed side wall of the lamella stack on this side.
  • the corresponding edges of the lamellae have an angled shape of the lamellar plane, wherein adjacent edges of the respective lamellae contact.
  • the edges forming the side wall are thus, for example, offset by the same angle and in the same direction from the associated lamella. angles.
  • two mutually opposite sides of the lamellar heat exchanger form a closed side wall by forming the corresponding edges of the lamellae.
  • Embodiments are also conceivable in which adjacent sides of the lamellar heat exchanger form a closed side wall of the lamella stack by the corresponding formation of the edges of the associated lamellae, in which case the common corner of the adjacent side walls is formed by a corresponding shape of the respective lamellae or edges in this lamella Area optionally allow a rotation of one of the side walls to the adjacent side wall.
  • the side walls which are formed by an as described here embodiment of the edges of the slats, in particular have the advantage that can be dispensed with the use or assembly of further components.
  • a housing of the laminated heat exchanger limited in its transverse direction to the stacking direction transverse direction through the two opposing side walls and in the stacking direction through the end plates the second flow path and surrounds it like a tunnel in the circumferential direction, while in its Is longitudinally interspersed by the second flow path and two open
  • the channels are disposed within the second flow path, whereby the channels are surrounded on all sides by the second fluid, which leads to a particularly intensive heat exchange between the fluids of the two flow paths through the walls of the channels and through the lamellae.
  • the channels extend transversely to the longitudinal direction of the lamellar heat exchanger through the second flow path and are arranged parallel next to one another both in the longitudinal direction and in the transverse direction of the lamella heat exchanger.
  • the individual slats are stacked such that the respective coupled collar abut each other.
  • the directly adjacent and coupled collars have a contact.
  • the coupling of the respective adjoining collar is optionally realized via joints, such as welds and solder joints.
  • the collar of the respective slats can be formed in any shape and size. However, it is advantageous to use collars which are cone-shaped. These lead in particular to a simplified stacking of the respective slats, to a simple coupling of the adjacent collar or the associated openings and additionally ensure the distance between the individual slats.
  • shape of the collar reference is made to cylindrical, ellipsoidal, hyperboloidal, and paraboloitic collars. Embodiments are also conceivable in which different forms of collar are used. Not all collars of the lamellar heat exchanger have the same orientation. In particular, not all the collars of a slat in the same direction are therefore dependent on the associated slat.
  • the collars can thus be designed in particular such that they protrude in the flow direction of the first fluid or against this flow direction or along the stacking direction of the lamellae or against the stacking direction of the lamella.
  • adjacent collars of the lamellae which form adjacent channels of the channel system are provided in formed gengresen directions.
  • Such a configuration of the collar serves, in particular, for the purpose of reducing or intensifying a braking of the flow generated, for example, by the edges of the collars.
  • the individual collars do not necessarily comprise a single opening of the associated lamella.
  • collar which simultaneously comprise a plurality of openings of the associated lamella.
  • the end plates each have one or more openings, each of which serves to feed or discharge the first or second fluid to the fin heat exchanger.
  • a supply or discharge of the first fluid is arranged, for example, in a region of the associated end plate, in which two channels of the channel system are fluidically connected to one another.
  • the feed is preferably located on one of the end plates and the discharge on the other opposite end plate.
  • the end plates have a plurality of feeds and / or discharges.
  • the end plates of the lamella heat exchanger are designed such that they respectively contact the directly adjacent lamellae outside the openings or collar of these lamellae. These contacts are linear or planar and optionally serve the connection of the end plates with the respective directly adjacent lamella. This connection is realized for example by a joining process.
  • the con- Clocks between the end plates and the adjacent fins now establish a fluidic connection between the channels and ensure a separation between the two flow paths of the first and the second fluid.
  • the end plates for example, plate cavities, wherein the individual plate cavities at their respective ends of the adjacent blade in an area outside the openings of these blades or the collar of these blades touch and thus contact.
  • the cavities of the end plates in this case preferably have an ordered, in particular periodic, arrangement.
  • the plate cavities of at least one of the end plates are configured such that they respectively connect an exit end of a single channel to an entry end of a single other channel.
  • the plate cavities thus form connecting channels which connect the respective channels of the first fluid with each other.
  • the respective exit ends or entry ends of the channels are defined with respect to the first flow path of the first fluid, which is also determined by the connection channels of the end plates and thus the plate cavities.
  • the disc cavities are configured to connect respective exit ends of a plurality of channels to entrance ends of a plurality of other channels.
  • the plate cavities thus form connecting chambers which have an influence on the flow path and thus on the mentioned outlet ends and inlet ends.
  • the end plates have both one or more connection channels and one or more connection chambers as well as any combination of connection channels and connection chambers.
  • the collars or openings of the individual slats are formed or shaped such that the channels of the Channel system parallel to each other.
  • the channels extend in lines that run side by side transversely to the flow direction of the second fluid. These lines may have a parallel arrangement. However, arrangements of the lines are also conceivable in which the lines which follow one another in the direction of flow of the second fluid, are aligned with one another or are arranged offset transversely to the flow direction of the second fluid.
  • At least one sleeve extends through at least one of the channels formed by the collar.
  • the sleeve now serves in particular the purpose of allowing a connection of the individual slats, for example by soldering. Furthermore, the sleeve in particular increases the stability of the laminated heat exchanger by a supporting function.
  • the lamellae of the lamellar heat exchanger and the end plates are preferably made of thermoresistant materials with suitable heat transfer.
  • metals and metal alloys such as aluminum, sheet and nickel-based alloy and aluminum alloys.
  • a particularly simple and thus cost-effective production of the individual slats or the lamella heat transfer and the associated collar and openings is possible in particular by punching or hydroforming (hydro-forming).
  • Such a production method is in particular the case of the individual lamellae of a coherent material, in particular re metal or metal alloys, preferably.
  • the collar of the individual slats can be further prepared in particular by a Ausstülp Kunststoffe.
  • openings of the respective fins of the lamella heat exchanger can have any shapes and sizes. As a preferred embodiment, reference is made here to a round opening, which is completely surrounded by a single associated collar. However, other forms of openings, such as elliptical or oval and angular shapes, are conceivable.
  • lamellar heat exchanger allows easy installation and a slight variation in size. So are to change the size of the fin transfer only the number of slats of the plate heat exchanger to vary. The production of other components, such as pipes, in different sizes thus eliminated. Consequently, lamellar heat exchangers can be used in numerous applications. Examples include exhaust gas heat exchanger, evaporator, exhaust gas recirculation cooler, intercooler, condensers, heat exchangers, air conditioning and waste heat recovery devices called.
  • FIG. 1 shows, in each case schematically, a side view of a detail of a lamella heat exchanger
  • 3 and 4 each show a perspective view of a lamellae heat exchanger, in different embodiments.
  • 5 and 6 each show a cross section through a section of a lamellae heat exchanger, in different embodiments.
  • a lamellar heat exchanger 1 comprises lamellae 2 stacked on top of one another in a stacking direction 5, each having openings 4 enclosed by a collar 3.
  • the stacked slats 2 at a distance from the directly adjacent slat 2.
  • the collars 3 of adjacent lamellae 2 are connected to one another in the stacking direction 5.
  • the collar 3 adjacent in the stacking direction 5 each form a channel 6 of a channel system 7.
  • the channels 6 of the channel system 7 further form a first flow path 8 for a first fluid.
  • a second flow path 9 for a second fluid arises between adjacent lamellae 2.
  • a blade comprises lenkorübertrager 1 to the two end plates 10, wherein a fluidic connection of the channels 6 of the first fluid within these end plates 10 takes place.
  • the collar 3 of the respective slats 2 are conical.
  • all the collar 3 of the slats 2 have the same size and are oriented in the same direction, that is, all collar 3 are in the stacking direction 5 of the associated blade 2 from.
  • Two mutually opposite edges 1 1 of the individual slats 2 are angled from the associated slat 2 in the stacking direction 5.
  • the adjacent edges 1 1 of the directly adjacent lamellae 2 contact each other in a planar manner in the stacking direction 5, wherein the angling of the edges 1 1 determines the distance of the respective lamella 2 to the adjacent lamella 2.
  • edges 1 1 Due to the same size and shape of all edges 1 1, and the same angling all adjacent in the stacking direction 5 edges 1 1 on the respective sides of the slats 2, thus resulting in the same distance between each directly adjacent slats 2.
  • This distance sink the conical Collar 3 in the stacking direction 5 directly adjacent opening 4 and in the collar 3 of the directly adjacent lamella 2.
  • This forms parallel channels 6 of the channel system 7, which are parallel to the stacking direction 5.
  • the surface contact of the stacking direction 5 directly adjacent edges 1 1 of the respective slats 2 further form on the respective side in each case a closed side wall 12 of the lamella stack.
  • the area contacting edges 1 1 are connected to each other in the respective contact surfaces 13 via joints 14.
  • the collar 3 of the slats 2 have a conical shape.
  • the lamellae 2 are stacked in such a way that the coupled collars 3 abut one another and are coupled to one another by connecting surfaces 13 which are produced by joints 14.
  • the end plates 10 of this plate heat exchanger 1 have cavities 15 which are the have the same size and shape and each separated by separating portions 16, which also each have the same size and shape.
  • One of the end plates 10 which is arranged in the stacking direction 5 at the top of the lamellar heat exchanger 1, connects through each one of the cavities 15 two in a direction 17 perpendicular to the stacking direction 5 directly adjacent channels 6 and separated by the separation section 16, the connection between one of the through the cavity 15 connected channels 6 and one in the direction 17 further directly adjacent channel 6.
  • the cavities 15 of the end plate 10 are thus formed as connecting channels.
  • the connection between the two last mentioned and separated by the separation portion 16 of the upper end plate 10 channels 6 is realized by a cavity 15 of the other with respect to the stacking direction 5 lower end plate 10 having the same shape and size of cavities 15 and separating portions 16, as the upper end plate 10.
  • the cavities 15 of the lower plate 10 are offset relative to the upper end plate 10 by half the width of one of the cavities 15 along the direction 17.
  • the respective end plates 10 continue to contact via their separation sections 16 each directly adjacent lamella 2 in a flat region of these lamellae 2 outside the collar 3 and the openings 4.
  • the end plates 10 are formed such that the distance between two directly adjacent separation sections 16 of respective end plates 10 twice the distance between two in the direction 17 directly adjacent channels 6 corresponds. Further, the end plates 10 contact via their separating portions 16, the adjacent lamella 2 areally. In the area of this sheet-like contact, the end plates 10 are connected via joints 14 with the adjacent lamellae 2.
  • the lamellar heat exchangers 1 shown in FIGS. 3 and 4 additionally have an opening 18 on the upper end plate 10 in the stacking direction 5, which via a pipe 19 supplies the supply or discharge of the first fluid into the duct system 8. made possible.
  • the opening 18 of the end plate 10 is arranged on a cavity 15 of the end plate 10, which connects in a direction 20 transversely to the stacking direction 5 and along a direction 21 transversely to the stacking direction 5 outermost channel row 22 of the plate heat exchanger 1 together.
  • This cavity 15 is thus formed as a connecting chamber.
  • the embodiments of the laminated heat exchanger 1 shown in FIGS. 3 and 4 furthermore show upper end plates 10 with different cavities.
  • the upper end plate 10 of the plate heat exchanger 1 shown in FIG. 3 has cavities 15, which each connect two channels 6 that are directly adjacent to one another along the direction 21. Between these cavities 15, the end plate 10 on separation sections 16 which do not allow connection between adjacent channels 20 in the direction 20. These cavities 15 are thus formed as connecting channels.
  • the cavities 15 of the upper end plate 10 of the embodiment shown in Fig. 4 have a length corresponding to the length of the heat exchanger 1 along the direction 20, and a width corresponding to the distance between two in the direction 21 directly adjacent channels 6. As a result, these cavities 15 each connect two channel rows 22 which are directly adjacent in the direction 21 and extend in the direction 20. These cavities 15 are thus designed as connecting chambers.
  • a housing 25 of the lamellar heat exchanger 1 limits the second flow path 9 in the circumferential direction 20 in its transverse direction 20 oriented transversely to the stacking direction 5 through the two opposite side walls 12 and in the stacking direction 5 through the two end plates 10.
  • the housing 25 is also in its longitudinal direction 21 from The second flow path 9 passes through and has at its longitudinal ends an inlet 26 and an outlet 27 for the second fluid.
  • the fin heat exchanger 1 is also designed so that the channels 6 are disposed within the housing 25 and within the second flow path 9. Furthermore, it is provided that the channels 6 extend transversely to the longitudinal direction 21 of the laminated heat exchanger 1 or of the housing 25 through the second flow path 9 and parallel to one another both in the longitudinal direction 21 and in the transverse direction 20 of the laminated heat exchanger 1 or of the housing 25 are arranged.
  • a sleeve 23 is arranged coaxially with these channels 6 in the respective channels 6 shown and contacts them.
  • the respective sleeves 23 are further connected via contact points with the associated channels 6.
  • the sleeves 23 thus serve in particular the connection of the slats 2 and stabilize the fin heat exchanger 1 in addition.
  • an embodiment without such sleeves 23 is preferred.
  • FIG. 6 shows stacked lamellae 2 of a lamella heat exchanger 1.
  • all collar 3 are cone-shaped.
  • the collars 3 are thus designed such that, while a collar 3 protrudes from the associated lamella 2 in the stacking direction 5, the collar 3 adjacent to the collar 3 in the direction 17 is opposite to the stacking collar 3.
  • direction 5 of the associated slat 2 protrudes.
  • the collar 3 of the lamella stack are formed such that the collar 3 of the same channel 6 in each case in the same direction, ie all in the stacking direction 5 or all against the stacking direction 5, projecting from the associated slats 2.

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)

Abstract

La présente invention concerne un échangeur de chaleur à lamelles (1), en particulier pour applications automobiles, comportant une pluralité de lamelles (2) empilées les unes sur les autres avec un espace dans un sens d'empilement (5), formant une pile de lamelles, les lamelles (2) présentant respectivement une pluralité d'ouvertures (4) bordées de collerettes (3), et les collerettes (3) des lamelles avoisinantes (2) étant couplées entre elles de manière à former respectivement un canal (6) d'un système de canaux (7) pour un premier chemin d'écoulement (8) d'un premier fluide dans la zone des collerettes couplées (3) et un deuxième chemin d'écoulement (9) d'un deuxième fluide entre les lamelles avoisinantes (2), et des plaques d'extrémité (10) situées aux extrémités éloignées l'une de l'autre de la pile de lamelles dans le sens d'empilement (5), les canaux (6) étant reliés de manière fluidique à l'intérieur des plaques d'extrémité (10). Un tel échangeur de chaleur à lamelle (1) peut être fabriqué et monté simplement et à coûts réduits, en particulier du fait de l'absence de tubes.
EP12721847.7A 2011-05-20 2012-05-16 Echangeur de chaleur à lamelles Ceased EP2710318A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076172A DE102011076172A1 (de) 2011-05-20 2011-05-20 Lamellenwärmeübertrager
PCT/EP2012/059144 WO2012159958A1 (fr) 2011-05-20 2012-05-16 Echangeur de chaleur à lamelles

Publications (1)

Publication Number Publication Date
EP2710318A1 true EP2710318A1 (fr) 2014-03-26

Family

ID=46124360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12721847.7A Ceased EP2710318A1 (fr) 2011-05-20 2012-05-16 Echangeur de chaleur à lamelles

Country Status (6)

Country Link
US (1) US20140305621A1 (fr)
EP (1) EP2710318A1 (fr)
JP (1) JP5864731B2 (fr)
CN (2) CN109210971A (fr)
DE (1) DE102011076172A1 (fr)
WO (1) WO2012159958A1 (fr)

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ES2725228T3 (es) * 2012-11-07 2019-09-20 Alfa Laval Corp Ab Paquete de placas y método de fabricación de un paquete de placas
WO2015088369A1 (fr) * 2013-12-11 2015-06-18 Владимир Германович МАЗЕИН Ébauche de section de radiateur de radiateur à tubes et à plaques, section de radiateur, ébauche produite à partir de celle-ci et radiateur produit à partir de cette section
JP2015159254A (ja) * 2014-02-25 2015-09-03 三桜工業株式会社 冷却装置及び冷却装置の製造方法
WO2016131139A1 (fr) 2015-02-18 2016-08-25 Dana Canada Corporation Échangeur de chaleur à plaques empilées à collecteurs supérieur et inférieur
CN110345801B (zh) * 2018-04-08 2021-06-15 神讯电脑(昆山)有限公司 增强型散热模块、散热鳍片结构及其冲压方法
US11280559B2 (en) * 2020-05-12 2022-03-22 Hanon Systems Dumbbell shaped plate fin
KR20240127740A (ko) * 2023-02-16 2024-08-23 한온시스템 주식회사 열교환기

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Also Published As

Publication number Publication date
US20140305621A1 (en) 2014-10-16
CN103733012A (zh) 2014-04-16
WO2012159958A1 (fr) 2012-11-29
DE102011076172A1 (de) 2012-11-22
JP2014513788A (ja) 2014-06-05
JP5864731B2 (ja) 2016-02-17
CN109210971A (zh) 2019-01-15

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