WO2016001414A1 - Header for exchanger bundle of a heat exchanger - Google Patents

Header for exchanger bundle of a heat exchanger Download PDF

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Publication number
WO2016001414A1
WO2016001414A1 PCT/EP2015/065223 EP2015065223W WO2016001414A1 WO 2016001414 A1 WO2016001414 A1 WO 2016001414A1 EP 2015065223 W EP2015065223 W EP 2015065223W WO 2016001414 A1 WO2016001414 A1 WO 2016001414A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubes
heat exchanger
row
collector
contact element
Prior art date
Application number
PCT/EP2015/065223
Other languages
French (fr)
Inventor
Carlos Martins
Anne-Sylvie Magnier-Cathenod
Original Assignee
Valeo Systemes Thermiques
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 Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to KR1020177002870A priority Critical patent/KR20170024097A/en
Priority to JP2016575903A priority patent/JP6445056B2/en
Priority to CN201580036363.3A priority patent/CN106687761A/en
Priority to US15/323,566 priority patent/US20170131044A1/en
Priority to EP15734152.0A priority patent/EP3164660A1/en
Publication of WO2016001414A1 publication Critical patent/WO2016001414A1/en

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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • 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
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F28F9/14—Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements

Definitions

  • the present invention relates to a collector for an exchange beam of a heat exchanger, such as a heat exchanger for a motor vehicle.
  • the collector according to the present invention is particularly adapted to withstand high pressures.
  • a heat exchanger of the type used in the automotive industry, comprises in principle a housing or casing having, in its interior, heat exchange elements allowing heat exchange from a first fluid to a second fluid. These elements, allowing this heat exchange can, for example, include tubes.
  • the tubes located inside a heat exchanger, may be present within an exchange beam comprising a plurality of tubes arranged substantially parallel to each other.
  • the tubes may be positioned in a row or several rows parallel to each other.
  • the tubes are held at their respective ends at a first and a second manifold.
  • the tubes make it possible to guide the first fluid inside said tubes, from a first end of the exchange bundle to the second end of the exchange bundle.
  • the tubes considered together, define between them, in combination with the walls of the housing, channels which guide the second fluid from the second end of the heat exchanger to the first end of the heat exchanger.
  • a heat exchanger allows in particular the flow, against the current, a first and a second fluid within said heat exchanger.
  • Other elements such as plates, vanes and flow disrupters may be provided in addition to the tubes forming the exchange bundle in order to improve the heat exchange between the first and the second fluid.
  • the housing is in the form of a housing comprising a plurality of walls forming the outside of the housing and defining the volume in which the heat exchange takes place.
  • the housing is, in principle, provided with inlets and outlets for the first and second fluid at a first and a second end of the housing. These inlets and outlets thus allow the heat exchanger to be connected to inlet ducts making it possible to conduct the first and second fluids towards the heat exchanger and to outlet ducts making it possible to drive the first and second second fluids to a final destination, when said first and second fluids have passed through the heat exchanger.
  • a collector for the exchange bundle of a heat exchanger as described above, is disclosed in the European patent application EP 2463612.
  • the collector disclosed within said application, comprises a plurality of elements stacked on each other inside a housing to obtain said collector.
  • the elements must be fixed on each other before the use of the heat exchanger.
  • the fixing of the various elements on each other is essential for optimal operation, and this in order to allow the heat exchanger comprising such a collector to operate under high pressure conditions.
  • the attachment methods are relatively complex and expensive.
  • the weight of all the components significantly increases the weight of the vehicles.
  • the object of the present invention is to obtain a collector for a heat exchanger exchange bundle with low production costs, a reduced weight and to ensure a functioning adapted to high pressure conditions.
  • the collector for a heat exchanger exchange bundle according to the present invention aims at overcoming the drawbacks of heat collectors known from the state of the art, by proposing an improved design as to the formation of a beam of heat. 'exchange.
  • the present invention relates to a collector adapted to be used with an exchange bundle of a heat exchanger, said exchange bundle comprising at least a first row of tubes and a second row of tubes, the tubes being adapted to allow the circulation of a first fluid in the exchange beam, the manifold comprising at least: a first contact element for holding the upper side first end of the first row of tubes, a second contact element for maintaining the lower side of said first end of the first row of tubes and for maintaining the upper side of a first end of the second row of tubes, the thickness of the second contact element defining the distance between said first and second rows of tubes, and a third contact element for holding the lower side of said first end of the second x row of tubes, the first, second and third contact elements being equidistant, the first end of the first contact element being connected to the first end of the second contact element by means of at least one first folded connector and the second end of the second element of contact being connected, at the second end of the third contact element, by means of at least one second folded connection
  • the sheet comprises metal such as aluminum.
  • the material of said sheet comprises plated aluminum.
  • the invention also relates to a sheet of foldable material comprising folding elements, said sheet being configured such that, when folded with the aid of folding elements, it forms a collector according to one embodiment.
  • FIG. 1 shows an exploded view of a heat exchanger comprising a collector of an exchange bundle according to one embodiment of the present invention
  • FIG. 2 represents the collector of FIG. 1, in an initial plane shape, before folding of said collector
  • FIG. 3 shows the collector of FIG. 2, in an intermediate form, during the folding of said collector
  • FIG. 4 represents the collector, according to FIGS. 2 and 3, in a final form, after folding of said collector,
  • FIG. 5 shows an assembled heat exchanger comprising the collector according to FIGS. 2, 3, 4, and
  • Figure 6 shows a collector for an exchange beam according to a second embodiment of the present invention.
  • FIG. 1 represents, in an exploded view, a first embodiment of a heat exchanger 1 comprising at least one collector 60 for an exchange bundle 10 according to the present invention.
  • the heat exchanger 1 comprises walls 2, 3, 4 which, assembled, form a casing or housing representing the outer wall of said heat exchanger 1.
  • the wall 3 forms the upper part of the heat exchanger 1
  • the wall 5 forms the bottom of said heat exchanger 1
  • the walls 2, 4 form the side portions of said heat exchanger 1.
  • the heat exchanger contains an exchange beam for heat exchange between a first and a second fluid.
  • the exchange bundle comprises rows of tubes 30 stacked substantially parallel to each other to form a stack 31.
  • the stack 31 of the tubes 30 is, at its two ends, connected to two collectors 60 having several functions.
  • the collectors 60 can receive and maintain the different tubes 30 of the stack 31.
  • the collectors 60 are arranged in a substantially parallel position relative to each other. The shape and operation of the collectors 60 are described below in detail with reference to FIGS. 1, 2, 3 and 4.
  • each collector 60 is connected to a connection element 40, 50.
  • the connection 40 is provided with an inlet 41 for a first fluid, said fluid being able to penetrate inside the heat exchanger 1 through the input 41.
  • the connection 50 is provided with an outlet 51.
  • the first fluid can circulate inside the various tubes 30 forming the stack 31 towards the connection 50. The first fluid can then leave the heat exchanger 1 through the outlet 51 of the connection 50.
  • the first fluid flowing from the inlet 41 to the outlet 51 is, for example, a fluid such as oil present in an oil circuit and requiring to be cooled during its conventional use.
  • said fluid circulates inside the tubes 30 forming together the stack 31. Channels are present outside the tubes 30, allowing a second fluid to move, against the current of the first fluid, an inlet 22, present in the wall 2, to an outlet 21 also present in said wall 2.
  • said tubes 30 may be connected, one with the others, by imposing a distance between each tube such that the second fluid can flow from the inlet 22 to the outlet 21.
  • the various tubes 30, together forming the stack 31, are optimally fixed to allow the use of the heat exchanger 1 under high pressure conditions.
  • the collectors 60 make it possible to fix the different plates relative to one another and to ensure the functionality of the heat exchanger 1.
  • Figure 2 shows one of the manifolds 60 in the initial form of a flat sheet.
  • the collector 60 comprises two faces and is punched so as to arrange the circulation of the fluid between the different tubes as well as the passage of the tubes themselves.
  • the sheet as shown in FIG. 2, is folded during a folding procedure to obtain the collector 60, as shown in FIG. 1.
  • the intermediate shape obtained during the folding procedure is shown on FIG. Figure 3.
  • the final shape of the head, after the folding procedure, is shown in Figure 4.
  • said collector 60 is provided with a series of contact elements 61, 62 connected to each other by means of connection elements 63, 64, 65 adapted to each other. to be folded.
  • Each first contact element 61 is connected to a second contact element 62, using two connecting elements 63 located essentially on the edges of the sheet.
  • Each second contact element 62 is connected to a first adjacent contact element 61, by means of a series of four connection elements 64 situated between the two edges of the sheet 60.
  • the contact elements 61, 62 define between they the openings 65 adapted to pass, individually, a tube of the stack 30 as shown in Figure 1.
  • the openings 66, 67, 68 together form a passage for passing a row of tubes 30 of the stack 31.
  • the thickness of the sheet 60 corresponds to the height of the passage of the coolant flowing between the different tubes 30, from the inlet 22 to the outlet 21, as shown in Figure 1.
  • the sheet 60 is specifically treated to obtain chamfered surfaces to facilitate the insertion of the different tubes 30 of the stack 31.
  • the sheet 60 has grooves to prevent clogging of the microchannels by the fluid before being folded.
  • the collector 60 obtained after folding of the sheet 60, as shown in FIG. 4, is generally suitable for a number of tubes less than 30. In practice, the thickness of the collector 60, as shown in FIG. , is limited to about 500mm.
  • FIG. 5 shows the use, within a changer exchanger 1, of the collector 60 according to the present invention.
  • the outer wall of the heat exchanger is partially removed to show the different elements of said heat exchanger 1.
  • Figure 5 shows the outlet 21 through which the cooling fluid is evacuated.
  • the collector 60, as well as the various tubes 30 forming the stack 31, are visible inside the heat exchanger 1.
  • the production of a collector 60, as shown in FIGS. 2, 3, 4, is relatively inexpensive and provides a particularly light collector 60. Due to the shape and functionality of the manifold 60, the heat exchanger 1 can be used under high pressure conditions.
  • FIG. 6 shows a manifold 70 according to a variant of the present invention.
  • the collector 70 comprises contact elements 61 making it possible to hold the various tubes 30 of a stack 31 according to FIG. 1 and connected by connection elements 72 situated on the lateral edge of said collector 70.
  • the connection elements 72 make it possible to realize a folding method for obtaining said collector 70.

Abstract

The present invention relates to a header usable with an exchanger bundle of a heat exchanger. Said exchanger bundle includes at least one first row of tubes and one second row of tubes. The tubes are suitable for enabling the flow of a first fluid in the exchanger bundle. The header includes at least: - one first contact element for supporting the top side of a first end of the first row of tubes; - one second contact element for supporting the bottom side of said first end of the first row of tubes and supporting the top side of a first end of the second row of tubes, the thickness of the second contact element defining the distance between said first and second rows of tubes; and - one third contact element for supporting the bottom side of said first end of the second row of tubes.

Description

COLLECTEUR POUR UN FAISCEAU D'ECHANGE D'UN ECHANGEUR DE CHALEUR Domaine de l'invention  COLLECTOR FOR AN EXCHANGE BEAM OF A HEAT EXCHANGER Field of the invention
La présente invention concerne un collecteur pour un faisceau d'échange d'un échangeur de chaleur, tel qu'un échangeur de chaleur destiné à un véhicule automobile. Le collecteur selon la présente invention est particulièrement adapté pour résister à de hautes pressions. The present invention relates to a collector for an exchange beam of a heat exchanger, such as a heat exchanger for a motor vehicle. The collector according to the present invention is particularly adapted to withstand high pressures.
Etat de la technique State of the art
Un échangeur de chaleur, du type de ceux utilisés dans l'industrie automobile, comprend en principe un boîtier ou carter comportant, en son intérieur, des éléments d'échange de chaleur permettant l'échange de chaleur d'un premier fluide vers un deuxième fluide. Ces éléments, permettant cet échange de chaleur peuvent, par exemple, comprendre des tubes. A heat exchanger, of the type used in the automotive industry, comprises in principle a housing or casing having, in its interior, heat exchange elements allowing heat exchange from a first fluid to a second fluid. These elements, allowing this heat exchange can, for example, include tubes.
Les tubes, situés à l'intérieur d'un échangeur de chaleur, peuvent être présents au sein d'un faisceau d'échange comprenant une pluralité de tubes disposés de façon essentiellement parallèle les uns par rapport aux autres. Les tubes peuvent être positionnés sur une rangée ou plusieurs rangées parallèles entre elles. Les tubes sont maintenus, par leurs extrémités respectives, à un premier et un deuxième collecteur. Les tubes permettent de guider le premier fluide à l'intérieur desdits tubes, d'une première extrémité du faisceau d'échange vers la seconde extrémité du faisceau d'échange. The tubes, located inside a heat exchanger, may be present within an exchange beam comprising a plurality of tubes arranged substantially parallel to each other. The tubes may be positioned in a row or several rows parallel to each other. The tubes are held at their respective ends at a first and a second manifold. The tubes make it possible to guide the first fluid inside said tubes, from a first end of the exchange bundle to the second end of the exchange bundle.
Les tubes, considérés ensemble, définissent entre eux, en combinaison avec les parois du carter, des canaux qui guident le deuxième fluide de la seconde extrémité de l'échangeur de chaleur vers la première extrémité de l'échangeur de chaleur. Ainsi, un échangeur de chaleur permet notamment la circulation, à contre-courant, d'un premier et d'un deuxième fluide au sein dudit échangeur de chaleur. D'autres éléments tels que des plaques, des ailettes et des perturbateurs d'écoulement peuvent être prévus en complément des tubes formant le faisceau d'échange afin d'améliorer l'échange de chaleur entre le premier et le deuxième fluide. The tubes, considered together, define between them, in combination with the walls of the housing, channels which guide the second fluid from the second end of the heat exchanger to the first end of the heat exchanger. Thus, a heat exchanger allows in particular the flow, against the current, a first and a second fluid within said heat exchanger. Other elements such as plates, vanes and flow disrupters may be provided in addition to the tubes forming the exchange bundle in order to improve the heat exchange between the first and the second fluid.
Des collecteurs adaptés pour le faisceau d'échange d'un échangeur de chaleur sont connus de l'art antérieur. Le carter se présente sous la forme d'un boîtier comprenant une pluralité de parois formant l'extérieur du carter et définissant le volume dans lequel s'effectue l'échange de chaleur. Le carter est, en principe, pourvu d'entrées et de sorties destinées au premier et au deuxième fluide en une première et une deuxième extrémité du carter. Ces entrées et sorties permettent ainsi à l'échangeur de chaleur d'être relié à des canalisations d'entrée permettant de conduire les premier et deuxième fluides en direction de l'échangeur de chaleur et à des canalisations de sorties permettant de conduire les premier et deuxième fluides vers une destination finale, lorsque lesdits premier et deuxième fluides ont traversé l'échangeur de chaleur. Suitable collectors for the exchange bundle of a heat exchanger are known from the prior art. The housing is in the form of a housing comprising a plurality of walls forming the outside of the housing and defining the volume in which the heat exchange takes place. The housing is, in principle, provided with inlets and outlets for the first and second fluid at a first and a second end of the housing. These inlets and outlets thus allow the heat exchanger to be connected to inlet ducts making it possible to conduct the first and second fluids towards the heat exchanger and to outlet ducts making it possible to drive the first and second second fluids to a final destination, when said first and second fluids have passed through the heat exchanger.
Un collecteur pour le faisceau d'échange d'un échangeur de chaleur, tel que décrit ci- dessus, est divulgué au sein de la demande de brevet européen EP 2463612. Le collecteur, divulgué au sein de ladite demande, comprend une pluralité d'éléments empilés les uns sur les autres à l'intérieur d'un carter afin d'obtenir ledit collecteur. A collector for the exchange bundle of a heat exchanger, as described above, is disclosed in the European patent application EP 2463612. The collector, disclosed within said application, comprises a plurality of elements stacked on each other inside a housing to obtain said collector.
Selon le document EP 2463612, les éléments doivent être fixés les uns sur les autres avant l'utilisation de l'échangeur de chaleur. La fixation des différents éléments les uns sur les autres est indispensable pour un fonctionnement optimal, et ce afin de permettre à l'échangeur de chaleur comprenant un tel collecteur de fonctionner sous des conditions de hautes pressions. Cependant, les procédés de fixation sont relativement complexes et onéreux. De plus, le poids de l'ensemble des composants augmente de manière non négligeable le poids des véhicules. Objet de l'invention According to EP 2463612, the elements must be fixed on each other before the use of the heat exchanger. The fixing of the various elements on each other is essential for optimal operation, and this in order to allow the heat exchanger comprising such a collector to operate under high pressure conditions. However, the attachment methods are relatively complex and expensive. In addition, the weight of all the components significantly increases the weight of the vehicles. Object of the invention
Le but de la présente invention concerne l'obtention d'un collecteur pour un faisceau d'échange d'un échangeur de chaleur avec de faibles coûts de production, un poids réduit et permettant d'assurer un fonctionnement adapté aux conditions de hautes pressions. The object of the present invention is to obtain a collector for a heat exchanger exchange bundle with low production costs, a reduced weight and to ensure a functioning adapted to high pressure conditions.
Le collecteur pour un faisceau d'échange d'un échangeur de chaleur selon la présente invention vise à remédier aux inconvénients des collecteurs de chaleur connus de l'état de la technique, en proposant une conception améliorée quant à la formation d'un faisceau d'échange. The collector for a heat exchanger exchange bundle according to the present invention aims at overcoming the drawbacks of heat collectors known from the state of the art, by proposing an improved design as to the formation of a beam of heat. 'exchange.
A cet effet, la présente invention concerne un collecteur adapté pour être utilisé avec un faisceau d'échange d'un échangeur de chaleur, ledit faisceau d'échange comprenant au moins une première rangée de tubes et une deuxième rangée de tubes, les tubes étant adaptés pour permettre la circulation d'un premier fluide dans le faisceau d'échange, le collecteur comprenant au moins : un premier élément de contact pour maintenir le côté supérieur première extrémité de la première rangée de tubes, un deuxième élément de contact pour maintenir le côté inférieur de ladite première extrémité de la première rangée de tubes et pour maintenir le côté supérieur d'une première extrémité de la deuxième rangée de tubes, l'épaisseur du deuxième élément de contact définissant la distance entre lesdites première et deuxième rangées de tubes, et un troisième élément de contact pour maintenir le côté inférieur de ladite première extrémité de la deuxième rangée de tubes, les premier, deuxième et troisième éléments de contact étant équidistants, la première extrémité du premier élément de contact étant, connectée à la première extrémité du deuxième élément de contact au moyen d'au moins un premier connecteur plié et la deuxième extrémité du deuxième élément de contact étant connectée, à la deuxième extrémité du troisième élément de contact, au moyen d'au moins un deuxième élément de connexion plié. For this purpose, the present invention relates to a collector adapted to be used with an exchange bundle of a heat exchanger, said exchange bundle comprising at least a first row of tubes and a second row of tubes, the tubes being adapted to allow the circulation of a first fluid in the exchange beam, the manifold comprising at least: a first contact element for holding the upper side first end of the first row of tubes, a second contact element for maintaining the lower side of said first end of the first row of tubes and for maintaining the upper side of a first end of the second row of tubes, the thickness of the second contact element defining the distance between said first and second rows of tubes, and a third contact element for holding the lower side of said first end of the second x row of tubes, the first, second and third contact elements being equidistant, the first end of the first contact element being connected to the first end of the second contact element by means of at least one first folded connector and the second end of the second element of contact being connected, at the second end of the third contact element, by means of at least one second folded connection element.
Selon un mode de réalisation de la présente invention, la tôle comprend du métal tel que l'aluminium. Selon un mode de réalisation de la présente invention, le matériau de ladite tôle comprend de l'aluminium plaqué. According to one embodiment of the present invention, the sheet comprises metal such as aluminum. According to an embodiment of the present invention, the material of said sheet comprises plated aluminum.
L'invention concerne également une tôle d'un matériau pliable comprenant des éléments de pliage, ladite tôle étant configurée de telle sorte que, lorsqu'elle est pliée à l'aide d'éléments de pliage, elle forme un collecteur selon l'une quelconque des revendications qui précèdent. The invention also relates to a sheet of foldable material comprising folding elements, said sheet being configured such that, when folded with the aid of folding elements, it forms a collector according to one embodiment. any of the preceding claims.
Brève description des dessins Les but, objets et caractéristiques de la présente invention ainsi que ses avantages apparaîtront plus clairement à la lecture de la description qui suit, d'un mode de réalisation préféré d'un échangeur de chaleur selon l'invention, faite en référence aux dessins dans lesquels : - la figure 1 montre une vue éclatée d'un échangeur de chaleur comprenant un collecteur d'un faisceau d'échange selon un mode de réalisation de la présente invention, la figure 2 représente le collecteur de la figure 1, selon une forme initiale plane, avant pliage dudit collecteur, BRIEF DESCRIPTION OF THE DRAWINGS The objects, objects and features of the present invention as well as its advantages will become more clearly apparent on reading the following description of a preferred embodiment of a heat exchanger according to the invention, made in reference to the drawings, in which: FIG. 1 shows an exploded view of a heat exchanger comprising a collector of an exchange bundle according to one embodiment of the present invention, FIG. 2 represents the collector of FIG. 1, in an initial plane shape, before folding of said collector,
la figure 3 montre le collecteur de la figure 2, selon une forme intermédiaire, lors du pliage dudit collecteur,  FIG. 3 shows the collector of FIG. 2, in an intermediate form, during the folding of said collector,
- la figure 4 représente le collecteur, selon les figures 2 et 3, selon une forme finale, après le pliage dudit collecteur,  FIG. 4 represents the collector, according to FIGS. 2 and 3, in a final form, after folding of said collector,
la figure 5 montre un échangeur de chaleur assemblé comprenant le collecteur selon les figures 2, 3, 4, et  FIG. 5 shows an assembled heat exchanger comprising the collector according to FIGS. 2, 3, 4, and
la figure 6 représente un collecteur pour un faisceau d'échange selon un deuxième mode de réalisation de la présente invention.  Figure 6 shows a collector for an exchange beam according to a second embodiment of the present invention.
Description détaillée d'un mode de réalisation Detailed description of an embodiment
La figure 1 représente, selon une vue éclatée, un premier mode de réalisation d'un échangeur de chaleur 1 comprenant au moins un collecteur 60 pour un faisceau d'échange 10 selon la présente invention. FIG. 1 represents, in an exploded view, a first embodiment of a heat exchanger 1 comprising at least one collector 60 for an exchange bundle 10 according to the present invention.
L'échangeur de chaleur 1 comprend des parois 2, 3, 4 qui, assemblées, forment un boîtier ou carter représentant la paroi extérieure dudit échangeur de chaleur 1. La paroi 3 forme la partie supérieure de l'échangeur de chaleur 1, la paroi 5 forme le fond dudit échangeur de chaleur 1 et les parois 2, 4 forment les parties latérales dudit échangeur de chaleur 1. The heat exchanger 1 comprises walls 2, 3, 4 which, assembled, form a casing or housing representing the outer wall of said heat exchanger 1. The wall 3 forms the upper part of the heat exchanger 1, the wall 5 forms the bottom of said heat exchanger 1 and the walls 2, 4 form the side portions of said heat exchanger 1.
A l'intérieur du boîtier, l'échangeur de chaleur contient un faisceau d'échange permettant un échange de chaleur entre un premier et un deuxième fluide. Le faisceau d'échange comprend des rangées de tubes 30 empilées de manière essentiellement parallèles entre elles pour former un empilement 31. Inside the housing, the heat exchanger contains an exchange beam for heat exchange between a first and a second fluid. The exchange bundle comprises rows of tubes 30 stacked substantially parallel to each other to form a stack 31.
L'empilement 31 des tubes 30 est, en ses deux extrémités, connecté à deux collecteurs 60 présentant plusieurs fonctions. Ainsi, les collecteurs 60 peuvent recevoir et maintenir les différents tubes 30 de l'empilement 31. Les collecteurs 60 sont disposés dans une position essentiellement parallèle, l'un par rapport à l'autre. La forme et le fonctionnement des collecteurs 60 sont décrits ci-dessous en détail en référence aux figures 1, 2, 3 et 4. The stack 31 of the tubes 30 is, at its two ends, connected to two collectors 60 having several functions. Thus, the collectors 60 can receive and maintain the different tubes 30 of the stack 31. The collectors 60 are arranged in a substantially parallel position relative to each other. The shape and operation of the collectors 60 are described below in detail with reference to FIGS. 1, 2, 3 and 4.
Comme montré sur la figure 1, chaque collecteur 60 est connecté à un élément de raccordement 40, 50. Le raccordement 40 est pourvu d'une entrée 41 pour un premier fluide, ledit fluide pouvant pénétrer à l'intérieur de l'échangeur de chaleur 1 via l'entrée 41. Le raccordement 50 est pourvu d'une sortie 51. Le premier fluide peut circuler à l'intérieur des différents tubes 30 formant l'empilement 31 en direction du raccordement 50. Le premier fluide peut ensuite sortir de l'échangeur de chaleur 1 par la sortie 51 du raccordement 50. As shown in FIG. 1, each collector 60 is connected to a connection element 40, 50. The connection 40 is provided with an inlet 41 for a first fluid, said fluid being able to penetrate inside the heat exchanger 1 through the input 41. The connection 50 is provided with an outlet 51. The first fluid can circulate inside the various tubes 30 forming the stack 31 towards the connection 50. The first fluid can then leave the heat exchanger 1 through the outlet 51 of the connection 50.
Le premier fluide, circulant de l'entrée 41 vers la sortie 51, est, par exemple, un fluide tel que de l'huile présente dans un circuit d'huile et nécessitant d'être refroidie au cours de son utilisation classique. Afin d'être refroidi, ledit fluide circule à l'intérieur des tubes 30 formant ensemble l'empilement 31. Des canaux sont présents à l'extérieur des tubes 30, permettant à un deuxième fluide de se déplacer, à contre-courant du premier fluide, d'une entrée 22, présente dans la paroi 2, vers une sortie 21 également présente dans ladite paroi 2. Afin de créer les différents canaux entre les tubes 30 formant l'empilement 31, lesdits tubes 30 peuvent être connectés, les uns avec les autres, en imposant une distance entre chaque tube telle que le deuxième fluide peut circuler de l'entrée 22 vers la sortie 21. The first fluid flowing from the inlet 41 to the outlet 51 is, for example, a fluid such as oil present in an oil circuit and requiring to be cooled during its conventional use. In order to be cooled, said fluid circulates inside the tubes 30 forming together the stack 31. Channels are present outside the tubes 30, allowing a second fluid to move, against the current of the first fluid, an inlet 22, present in the wall 2, to an outlet 21 also present in said wall 2. In order to create the different channels between the tubes 30 forming the stack 31, said tubes 30 may be connected, one with the others, by imposing a distance between each tube such that the second fluid can flow from the inlet 22 to the outlet 21.
Selon la présente invention, il est important que les différents tubes 30, formant ensemble l'empilement 31, soient fixés de façon optimale afin de permettre l'utilisation de l'échangeur de chaleur 1 sous des conditions de hautes pressions. According to the present invention, it is important that the various tubes 30, together forming the stack 31, are optimally fixed to allow the use of the heat exchanger 1 under high pressure conditions.
Selon la figure 1, les collecteurs 60 permettent de fixer les différentes plaques les unes par rapport aux autres, et d'assurer la fonctionnalité de l'échangeur de chaleur 1. According to FIG. 1, the collectors 60 make it possible to fix the different plates relative to one another and to ensure the functionality of the heat exchanger 1.
La figure 2 montre un des collecteurs 60 sous la forme initiale d'une tôle plane. Le collecteur 60 comprend deux faces et est poinçonné de manière à aménager la circulation du fluide entre les différents tubes ainsi que le passage des tubes eux- mêmes. La tôle, telle que montrée sur la figure 2, est pliée lors d'une procédure de pliage afin d'obtenir le collecteur 60, tel que montré sur la figure 1. La forme intermédiaire obtenue lors de la procédure de pliage est montrée sur la figure 3. La forme finale de la tête, après la procédure de pliage, est montrée sur la figure 4. Figure 2 shows one of the manifolds 60 in the initial form of a flat sheet. The collector 60 comprises two faces and is punched so as to arrange the circulation of the fluid between the different tubes as well as the passage of the tubes themselves. The sheet, as shown in FIG. 2, is folded during a folding procedure to obtain the collector 60, as shown in FIG. 1. The intermediate shape obtained during the folding procedure is shown on FIG. Figure 3. The final shape of the head, after the folding procedure, is shown in Figure 4.
Pour permettre la réalisation du procédé de pliage et les différentes fonctionnalités du collecteur 60, ledit collecteur 60 est pourvu d'une série d'éléments de contact 61, 62 connectés les uns aux autres grâce à des éléments de connexion 63, 64, 65 adaptés pour être pliés. Chaque premier élément de contact 61 est connecté à un deuxième élément de contact 62, à l'aide de deux éléments de connexion 63 se trouvant essentiellement sur les bordures de la tôle. Chaque deuxième élément de contact 62 est connecté à un premier élément de contact 61 adjacent, à l'aide d'une série de quatre éléments de connexion 64 situés entre les deux bordures de la tôle 60. Les éléments de contact 61, 62 délimitent entre eux les ouvertures 65 adaptées pour laisser passer, individuellement, un tube de l'empilement 30 tel que montré sur la figure 1. To enable the folding method and the various functionalities of the collector 60 to be realized, said collector 60 is provided with a series of contact elements 61, 62 connected to each other by means of connection elements 63, 64, 65 adapted to each other. to be folded. Each first contact element 61 is connected to a second contact element 62, using two connecting elements 63 located essentially on the edges of the sheet. Each second contact element 62 is connected to a first adjacent contact element 61, by means of a series of four connection elements 64 situated between the two edges of the sheet 60. The contact elements 61, 62 define between they the openings 65 adapted to pass, individually, a tube of the stack 30 as shown in Figure 1.
Les ouvertures 66, 67, 68 forment ensemble un passage permettant de laisser passer une rangée de tubes 30 de l'empilement 31. L'épaisseur de la tôle 60 correspond à la hauteur du passage du liquide de refroidissement circulant entre les différents tubes 30, de l'entrée 22 vers la sortie 21, tel que montré sur la figure 1. La tôle 60 est spécifiquement traitée pour obtenir des surfaces chanfreinées en vue de faciliter l'insertion des différents tubes 30 de l'empilement 31. Par ailleurs, la tôle 60 comporte des rainures permettant d'éviter le bouchage des micro-canaux par le fluide avant d'être pliée. Le collecteur 60, obtenu après pliage de la tôle 60, comme montré sur la figure 4, est, généralement, adapté pour un nombre de tubes inférieur à 30. En pratique, l'épaisseur du collecteur 60, tel que montré sur la figure 4, est limitée à environ 500mm. Par ailleurs, selon la présente invention, la fixation des différents tubes 30, formant ensemble l'empilement 31, est réalisée à l'aide d'un dispositif léger peu onéreux. La figure 5 montre l'utilisation, au sein d'un échangeur de changeur 1, du collecteur 60 selon la présente invention. La paroi extérieure de l'échangeur de chaleur est partiellement retirée afin de montrer les différents éléments dudit échangeur de chaleur 1. La figure 5 montre la sortie 21 par laquelle s'évacue le fluide de refroidissement. Le collecteur 60, ainsi que les différents tubes 30 formant l'empilement 31, sont visibles à l'intérieur de l'échangeur de chaleur 1. La production d'un collecteur 60, tel que montré sur les figures 2, 3, 4, est relativement peu onéreuse et permet d'obtenir un collecteur 60 particulièrement léger. Grâce à la forme et aux fonctionnalités du collecteur 60, l'échangeur de chaleur 1 peut être utilisé dans des conditions de hautes pressions. The openings 66, 67, 68 together form a passage for passing a row of tubes 30 of the stack 31. The thickness of the sheet 60 corresponds to the height of the passage of the coolant flowing between the different tubes 30, from the inlet 22 to the outlet 21, as shown in Figure 1. The sheet 60 is specifically treated to obtain chamfered surfaces to facilitate the insertion of the different tubes 30 of the stack 31. Moreover, the sheet 60 has grooves to prevent clogging of the microchannels by the fluid before being folded. The collector 60, obtained after folding of the sheet 60, as shown in FIG. 4, is generally suitable for a number of tubes less than 30. In practice, the thickness of the collector 60, as shown in FIG. , is limited to about 500mm. Furthermore, according to the present invention, the fixing of the various tubes 30, forming together the stack 31, is performed using a lightweight device inexpensive. FIG. 5 shows the use, within a changer exchanger 1, of the collector 60 according to the present invention. The outer wall of the heat exchanger is partially removed to show the different elements of said heat exchanger 1. Figure 5 shows the outlet 21 through which the cooling fluid is evacuated. The collector 60, as well as the various tubes 30 forming the stack 31, are visible inside the heat exchanger 1. The production of a collector 60, as shown in FIGS. 2, 3, 4, is relatively inexpensive and provides a particularly light collector 60. Due to the shape and functionality of the manifold 60, the heat exchanger 1 can be used under high pressure conditions.
La figure 6 représente un collecteur 70 selon une variante de la présente invention. Le collecteur 70 comprend des éléments de contact 61 permettant de maintenir les différents tubes 30 d'un empilement 31 selon la figure 1 et connectés par des éléments de connexion 72 situés sur le bord latéral dudit collecteur 70. Les éléments de connexion 72 permettent de réaliser un procédé de pliage pour obtenir ledit collecteur 70. Figure 6 shows a manifold 70 according to a variant of the present invention. The collector 70 comprises contact elements 61 making it possible to hold the various tubes 30 of a stack 31 according to FIG. 1 and connected by connection elements 72 situated on the lateral edge of said collector 70. The connection elements 72 make it possible to realize a folding method for obtaining said collector 70.

Claims

REVENDICATIONS
Collecteur (60) adapté pour être utilisé avec un faisceau d'échange d'un échangeur de chaleur, ledit faisceau d'échange comprenant au moins une première rangée de tubes (30) et une deuxième rangée de tubes (30), les tubes (30) étant adaptés pour permettre la circulation d'un premier fluide dans le faisceau d'échange, le collecteur (60) comprenant au moins : un premier élément de contact (61, 62) pour maintenir le côté supérieur d'une première extrémité de la première rangée de tubes, un deuxième élément de contact (61, 62) pour maintenir le côté inférieur de ladite première extrémité de la première rangée de tubes et pour maintenir le côté supérieur d'une première extrémité de la deuxième rangée de tubes, l'épaisseur du deuxième élément de contact définissant la distance entre lesdites première et deuxième rangées de tubes, et un troisième élément de contact (61, 62) pour maintenir le côté inférieur de ladite première extrémité de la deuxième rangée de tubes (30), les premier, deuxième et troisième éléments de contact étant équidistants, la première extrémité du premier élément de contact (61) étant, connectée à la première extrémité du deuxième élément de contact (62) au moyen d'au moins un premier connecteur plié et la deuxième extrémité du deuxième élément de contact (61, 62) étant connectée, à la deuxième extrémité du troisième élément de contact (61, 62), au moyen d'au moins un deuxième élément de connexion (63, 64) plié. Collecteur (60) selon la revendication 1, dans lequel ledit collecteur (60) comprend du métal tel que l'aluminium. A collector (60) adapted for use with a heat exchanger exchange bundle, said exchange bundle comprising at least a first row of tubes (30) and a second row of tubes (30), the tubes ( 30) being adapted to allow circulation of a first fluid in the exchange bundle, the manifold (60) comprising at least: a first contact member (61, 62) for holding the upper side of a first end of the first row of tubes, a second contact member (61, 62) for holding the underside of said first end of the first row of tubes and for holding the upper side of a first end of the second row of tubes, thickness of the second contact element defining the distance between said first and second rows of tubes, and a third contact element (61, 62) for holding the underside of said first end of the second row of tubes (30), the first, second and third contact elements being equidistant, the first end of the first contact element (61) being connected to the first end of the second contact element (62) by means of at least one first bent connector and the second end of the second contact element (61, 62) being connected to the second end of the third contact element (61, 62) by means of at least one second element of connection (63, 64) folded. The header (60) of claim 1, wherein said header (60) comprises metal such as aluminum.
Collecteur selon la revendication 2, dans lequel le matériau dudit collecteur (60) comprend de l'aluminium plaqué. The manifold of claim 2, wherein the material of said manifold (60) comprises plated aluminum.
Tôle d'un matériau pliable comprenant des éléments de pliage, ladite tôle étant configurée de telle sorte que, lorsqu'elle est pliée à l'aide d'éléments de connexion (63, 64), elle forme un collecteur (60) selon l'une quelconque des revendications précédentes. Sheet of collapsible material comprising folding elements, said sheet being configured such that, when folded by means of connecting elements (63, 64), it forms a collector (60) according to any preceding claim.
PCT/EP2015/065223 2014-07-03 2015-07-03 Header for exchanger bundle of a heat exchanger WO2016001414A1 (en)

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KR1020177002870A KR20170024097A (en) 2014-07-03 2015-07-03 Header for exchanger bundle of a heat exchanger
JP2016575903A JP6445056B2 (en) 2014-07-03 2015-07-03 Header for heat exchanger exchanger bundle
CN201580036363.3A CN106687761A (en) 2014-07-03 2015-07-03 Header for exchanger bundle of a heat exchanger
US15/323,566 US20170131044A1 (en) 2014-07-03 2015-07-03 Header for exchanger bundle of a heat exchanger
EP15734152.0A EP3164660A1 (en) 2014-07-03 2015-07-03 Header for exchanger bundle of a heat exchanger

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FR1456404A FR3023365B1 (en) 2014-07-03 2014-07-03 MANIFOLD FOR A HEAT EXCHANGER EXCHANGE BEAM
FR1456404 2014-07-03

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FR3023365B1 (en) 2020-10-23
JP6445056B2 (en) 2018-12-26
CN106687761A (en) 2017-05-17
EP3164660A1 (en) 2017-05-10
JP2017519964A (en) 2017-07-20
FR3023365A1 (en) 2016-01-08
KR20170024097A (en) 2017-03-06

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