EP3172518B1 - Heat exchanger having a baffle - Google Patents

Heat exchanger having a baffle Download PDF

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Publication number
EP3172518B1
EP3172518B1 EP15747410.7A EP15747410A EP3172518B1 EP 3172518 B1 EP3172518 B1 EP 3172518B1 EP 15747410 A EP15747410 A EP 15747410A EP 3172518 B1 EP3172518 B1 EP 3172518B1
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EP
European Patent Office
Prior art keywords
tubes
cooling fluid
section
passage
housing
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.)
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Application number
EP15747410.7A
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German (de)
French (fr)
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EP3172518A1 (en
Inventor
Yolanda Bravo Rodriguez
Juan Carlos De Francisco Moreno
Fernando PUERTOLAS SANCHEZ
Francisco Lopez Lazaro
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Valeo Termico SA
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Valeo Termico SA
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Publication of EP3172518A1 publication Critical patent/EP3172518A1/en
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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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0462—Liquid cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit

Definitions

  • the present invention relates to a heat exchanger provided with one or more cooling flow guide baffles for optimum heat exchange between cooling fluid and cooled fluid.
  • the present invention relates more particularly to a heat exchanger according to the preamble of claim 1.
  • Such an exchanger is known, for example, from the document US2009 / 0277606 . Context of the invention
  • the cooling fluid is forced through said passage sections into contact with the outer surface of the tubes, so that a heat exchange occurs between the fluid to be cooled which passes through the inside of the tubes and the cooling fluid.
  • This configuration which can be the subject of many variations, allows only a limited control of the configuration of the thermal gradients between the two fluids, because it is possible that areas of the heat exchanger remain, in particular the corners remote from the cooling fluid inlets and outlets, also called stagnation zones, in which the flow of cooling fluid is less and, consequently, where the cooling efficiency is compromised.
  • cooling fluid baffles which consist of obstacles which are provided in the passage sections in order to configure the flow more efficiently.
  • the tubes are provided on their upper and lower sides with protuberances intended to keep the tubes assembled together and with the housing.
  • the tubes are of rectangular section.
  • the exchanger comprises two contiguous columns of parallel tubes of rectangular section arranged in a stack.
  • each lamellar body comprises an end section parallel to the extensions and which obstructs the cooling fluid passage section between the housing and the lower or upper tube of the stack.
  • the end section of the lamellar bodies comprises cutouts adapted to cooperate with the protuberances of the housing.
  • the exchanger comprises an upper frontal cooling fluid inlet and a rearward lateral cooling fluid outlet, two lamellar bodies arranged to obstruct the cooling fluid passage section through the upper part immediately downstream of the upper front cooling fluid inlet and two lamellar bodies arranged to obstruct the cooling fluid passage section through the lower portion immediately upstream of the lateral rearward cooling fluid outlet.
  • each of the first sections comprises cheeks that extend perpendicularly from their contact edge with the tubes, so that they constitute plates for fixing to the tubes.
  • the baffles are made of two pieces which have a comb shape and are assembled by the sides by introducing the teeth of the comb between the tubes 2.
  • the ends of these "combs" are superimposed to constitute the equivalent of a single piece.
  • the tubes 2 are provided on their upper and lower sides with protuberances P intended to hold the tubes 2 assembled together and with the housing 3.
  • the exchanger comprises two contiguous columns of parallel tubes 2 of rectangular section arranged in a stack.
  • the cross section between contiguous tubes in the horizontal direction is not blocked by the pieces or "combs", but it is a section of little importance.
  • Each lamellar body 6, 7 comprises an end section 10 parallel to the extensions 9 and which obstructs the section of cooling fluid passage between the housing 3 and the lower or upper tube of the stack.
  • This terminal section 10 can be welded to the upper (lower) surface of the upper (lower) tube to help secure the baffles to the tubes.
  • the exchanger comprises an upper front inlet 11 of cooling fluid and a rear lateral outlet 12 of cooling fluid, two lamellar bodies 6, 7 arranged to obstruct the section of cooling fluid passage through the upper part immediately downstream of the upper frontal inlet 11 of cooling fluid and two lamellar bodies 6 ', 7' arranged to obstruct the cooling fluid passage section through the lower part immediately upstream of the lateral rear outlet 12 of cooling fluid.
  • Each of the first sections 8 comprises cheeks 13 which extend perpendicularly from their edge of contact with the tubes, so that they constitute lateral attachment plates to the tubes 2.
  • the parts which constitute the baffles comprise cutouts 14 intended to allow the inner protuberances of assembly of the housing to pass, since the assembly thereof is made by sliding over the assembly once the baffles are placed on the tubes and fixed. to these.
  • the parts cover between half and two thirds of the passage section, although in each case it will be possible to determine the number of optimal pairs of parts to obtain the desired flow of cooling fluid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

La présente invention concerne un échangeur de chaleur muni d'un ou plusieurs déflecteurs de guidage du flux de refroidissement pour obtenir un échange optimal de chaleur entre fluide de refroidissement et fluide refroidi. La présente invention concerne plus particulièrement un échangeur de chaleur conforme au préambule de la revendication 1. Un tel échangeur est connu, par exemple, du document US2009/0277606 . Contexte de l'invention The present invention relates to a heat exchanger provided with one or more cooling flow guide baffles for optimum heat exchange between cooling fluid and cooled fluid. The present invention relates more particularly to a heat exchanger according to the preamble of claim 1. Such an exchanger is known, for example, from the document US2009 / 0277606 . Context of the invention

On connaît dans le secteur automobile les échangeurs de chaleur qui comprennent :

  • au moins une colonne de tubes parallèles de section rectangulaire disposés en empilement qui définissent une direction longitudinale ;
  • un boîtier à l'intérieur duquel se logent les tubes, les tubes étant munis sur leurs côtés supérieur et inférieur de protubérances destinées à maintenir les tubes assemblés entre eux et avec le boîtier avec une séparation de façon à configurer un canal de passage de fluide de refroidissement constitué par :
    • ∘ des sections de passage entre tubes contigus dans la direction de l'empilement ;
    • ∘ des sections de passage entre tubes et boîtier.
The automotive sector is known for heat exchangers which include:
  • at least one column of parallel tubes of rectangular section arranged in a stack which define a longitudinal direction;
  • a housing inside which the tubes are housed, the tubes being provided on their upper and lower sides with protuberances intended to hold the assembled tubes together and with the housing with a separation so as to configure a fluid passage channel of cooling constituted by:
    • Sections passage sections between adjacent tubes in the direction of the stack;
    • ∘ passage sections between tubes and housing.

Par conséquent, le fluide de refroidissement est forcé de passer par lesdites sections de passage, en contact avec la surface externe des tubes, de sorte que se produit un échange de chaleur entre le fluide à refroidir qui passe par l'intérieur des tubes et le fluide de refroidissement.Therefore, the cooling fluid is forced through said passage sections into contact with the outer surface of the tubes, so that a heat exchange occurs between the fluid to be cooled which passes through the inside of the tubes and the cooling fluid.

En général, pour des questions d'espace, il y a peu de possibilités pour disposer les entrées et sorties tant du fluide refroidi, qui s'introduit par une extrémité des tubes et sort par l'autre extrémité, c'est-à-dire qui parcourt l'échangeur de chaleur suivant la direction longitudinale, que du fluide de refroidissement, qui s'introduit à la partie supérieure par l'avant de l'échangeur, pour sortir par la partie arrière, de préférence sur le côté.In general, for reasons of space, there is little opportunity to arrange the inputs and outputs of both the cooled fluid, which is introduced by one end of the tubes and out the other end, that is to say say that runs through the heat exchanger in the longitudinal direction, that coolant, which is introduced to the upper part from the front of the exchanger, to exit through the rear part, preferably on the side.

Cette configuration, qui peut faire l'objet de nombreuses variantes, ne permet qu'un contrôle limité de la configuration des gradients thermiques entre les deux fluides, car il est possible que subsistent des zones de l'échangeur, en particulier les coins éloignés des entrées et sorties de fluide de refroidissement, appelées aussi zones de stagnation, dans lesquelles le flux de fluide de refroidissement est moindre et, par conséquent, où l'efficacité de refroidissement se voit compromise.This configuration, which can be the subject of many variations, allows only a limited control of the configuration of the thermal gradients between the two fluids, because it is possible that areas of the heat exchanger remain, in particular the corners remote from the cooling fluid inlets and outlets, also called stagnation zones, in which the flow of cooling fluid is less and, consequently, where the cooling efficiency is compromised.

Pour réduire les zones de stagnation, on connaît l'utilisation de déflecteurs du fluide de refroidissement, qui consistent en obstacles que l'on dispose dans les sections de passage dans le but de configurer le flux de manière plus efficace.In order to reduce stagnation zones, it is known to use cooling fluid baffles, which consist of obstacles which are provided in the passage sections in order to configure the flow more efficiently.

Néanmoins, il n'existe pas au jour d'aujourd'hui de solution polyvalente qui soit compatible avec un procédé d'assemblage de tubes et déflecteurs.Nevertheless, today there is no versatile solution that is compatible with a method of assembling tubes and baffles.

Description de l'inventionDescription of the invention

Pour combler ce manque, on propose un échangeur de chaleur qui comprend :

  • au moins une colonne de tubes parallèles disposés en empilement qui définissent une direction longitudinale ;
  • un boîtier à l'intérieur duquel se logent les tubes, les tubes étant séparés entre eux, de façon à configurer un canal de passage de fluide de refroidissement constitué par :
    • ∘ des sections de passage entre tubes contigus dans la direction de l'empilement ;
    • ∘ des sections de passage entre tubes et boîtier ; et
  • des déflecteurs du fluide de refroidissement
et qui est caractérisé en ce que les déflecteurs sont au moins deux corps lamellaires d'une seule pièce disposés dans un plan perpendiculaire à la direction longitudinale et découpés de façon à ce que chacun ait :
  • une première section apte à obstruer partiellement une section de passage entre tubes et boîtier,
  • des extensions qui s'étendent à partir de ladite première section perpendiculairement à celle-ci et qui sont aptes à obstruer des sections de passage entre tubes contigus dans la direction de l'empilement,
la longueur des extensions de chacun des corps lamellaires étant telle que les extensions d'un des corps lamellaires se chevauchent avec les extensions de l'autre corps lamellaire, de sorte que chaque corps lamellaire peut être introduit latéralement par rapport aux tubes et constituer un déflecteur du fluide de refroidissement.To fill this gap, we propose a heat exchanger that includes:
  • at least one column of stacked parallel tubes which define a longitudinal direction;
  • a housing inside which the tubes are housed, the tubes being separated from each other, so as to configure a cooling fluid passage channel constituted by:
    • Sections passage sections between adjacent tubes in the direction of the stack;
    • ∘ passage sections between tubes and casing; and
  • coolant baffles
and which is characterized in that the deflectors are at least two lamellar bodies in one piece arranged in a plane perpendicular to the longitudinal direction and cut so that each has:
  • a first section adapted to partially obstruct a cross section between tubes and housing,
  • extensions extending from said first section perpendicular thereto and capable of obstructing passage sections between adjacent tubes in the direction of stacking,
the length of the extensions of each of the lamellar bodies being such that the extensions of one of the lamellar bodies overlap with the extensions of the other lamellar body, so that each lamellar body can be introduced laterally with respect to the tubes and constitute a deflector coolant.

De préférence, les tubes sont munis sur leurs côtés supérieur et inférieur de protubérances destinées à maintenir les tubes assemblés entre eux et avec le boîtier.Preferably, the tubes are provided on their upper and lower sides with protuberances intended to keep the tubes assembled together and with the housing.

De préférence, les tubes sont de section rectangulaire.Preferably, the tubes are of rectangular section.

Avantageusement, l'échangeur comprend deux colonnes contiguës de tubes parallèles de section rectangulaire disposés en empilement.Advantageously, the exchanger comprises two contiguous columns of parallel tubes of rectangular section arranged in a stack.

De préférence, chaque corps lamellaire comprend une section terminale parallèle aux extensions et qui obstrue la section de passage de fluide de refroidissement entre le boîtier et le tube inférieur ou supérieur de l'empilement.Preferably, each lamellar body comprises an end section parallel to the extensions and which obstructs the cooling fluid passage section between the housing and the lower or upper tube of the stack.

Avantageusement, la section terminale des corps lamellaires comprend des découpes aptes à coopérer avec les protubérances du boîtier.Advantageously, the end section of the lamellar bodies comprises cutouts adapted to cooperate with the protuberances of the housing.

De façon plus avantageuse, l'échangeur comprend une entrée de fluide de refroidissement frontale supérieure et une sortie de fluide de refroidissement postérieure latérale, deux corps lamellaires disposés pour obstruer la section de passage de fluide de refroidissement par la partie supérieure immédiatement en aval de l'entrée de fluide de refroidissement frontale supérieure et deux corps lamellaires disposés pour obstruer la section de passage de fluide de refroidissement par la partie inférieure immédiatement en amont de la sortie de fluide de refroidissement postérieure latérale.More advantageously, the exchanger comprises an upper frontal cooling fluid inlet and a rearward lateral cooling fluid outlet, two lamellar bodies arranged to obstruct the cooling fluid passage section through the upper part immediately downstream of the upper front cooling fluid inlet and two lamellar bodies arranged to obstruct the cooling fluid passage section through the lower portion immediately upstream of the lateral rearward cooling fluid outlet.

Finalement, chacune des premières sections comprend des joues qui s'étendent perpendiculairement depuis leur bord de contact avec les tubes, de sorte qu'elles constituent des plaques de fixation aux tubes.Finally, each of the first sections comprises cheeks that extend perpendicularly from their contact edge with the tubes, so that they constitute plates for fixing to the tubes.

Brève description des figuresBrief description of the figures

Pour une meilleure compréhension de ce qui a été exposé, des dessins sont joints dans lesquels on représente, schématiquement et seulement à titre d'exemple non limitatif, un cas pratique de réalisation de l'échangeur selon l'invention.

  • La figure 1 est une section en élévation de l'échangeur selon l'invention.
  • La figure 2 est une vue en perspective éclatée de l'échangeur selon l'invention.
  • La figure 3 est une vue de face.
  • Les figures 4 et 5 sont des vues en élévation de côté et de face d'une des pièces unitaires qui constituent les moyens déflecteurs.
  • La figure 6 est une vue en perspective éclatée d'un ensemble de tubes et de deux paires de pièces déflectrices.
For a better understanding of what has been exposed, drawings are attached in which is shown, schematically and only by way of non-limiting example, a practical case of realization of the exchanger according to the invention.
  • The figure 1 is an elevation section of the exchanger according to the invention.
  • The figure 2 is an exploded perspective view of the exchanger according to the invention.
  • The figure 3 is a front view.
  • The Figures 4 and 5 are elevational side and front views of one of the unitary pieces that constitute the deflector means.
  • The figure 6 is an exploded perspective view of a set of tubes and two pairs of baffle pieces.

Description d'un mode de réalisation préféréDescription of a preferred embodiment

Comme on peut le voir sur les figures, l'invention concerne un échangeur de chaleur 1 qui comprend :

  • au moins une colonne de tubes parallèles 2, de manière très préférée de section rectangulaire, disposés en empilement qui définissent une direction longitudinale ;
  • un boîtier 3 à l'intérieur duquel se logent les tubes 2, les tubes 2 étant séparés entre eux, de façon à configurer un canal de passage de fluide de refroidissement constitué par :
    • ∘ des sections 4 de passage entre tubes 2 contigus dans la direction de l'empilement ;
    • ∘ des sections 5 de passage entre tubes et boîtier 3 ; et
  • des déflecteurs 6, 7 du fluide de refroidissement
et qui est caractérisé en ce que les déflecteurs sont au moins deux corps lamellaires 6, 7 d'une seule pièce disposés dans un plan perpendiculaire à la direction longitudinale et découpés de façon à ce que chacun ait :
  • une première section 8 apte à obstruer partiellement une section 5 de passage entre tubes et boîtier 3,
  • des extensions 9 qui s'étendent à partir de ladite première section 8 perpendiculairement à celle-ci et qui sont aptes à obstruer des sections 4 de passage entre tubes 2 contigus dans la direction de l'empilement,
la longueur des extensions 9 de chacun des corps lamellaires 6, 7 étant telle que les extensions 9 d'un des corps lamellaires 6 se chevauchent avec les extensions 9 de l'autre corps lamellaire 7, de sorte que chaque corps lamellaire 6, 7 peut être introduit latéralement par rapport aux tubes 2 et constituer un déflecteur du fluide de refroidissement.As can be seen in the figures, the invention relates to a heat exchanger 1 which comprises:
  • at least one column of parallel tubes 2, very preferably of rectangular section, arranged in stack which define a longitudinal direction;
  • a housing 3 inside which the tubes 2 are housed, the tubes 2 being separated from each other, so as to configure a cooling fluid passage channel consisting of:
    • ∘ sections 4 passage between tubes 2 contiguous in the direction of the stack;
    • ∘ sections 5 passage between tubes and housing 3; and
  • baffles 6, 7 of the coolant
and which is characterized in that the baffles are at least two lamellar bodies 6, 7 in one piece arranged in a plane perpendicular to the longitudinal direction and cut so that each has:
  • a first section 8 adapted to partially obstruct a passage section 5 between tubes and housing 3,
  • extensions 9 which extend from said first section 8 perpendicular thereto and which are able to obstruct sections 4 of passage between tubes 2 contiguous in the direction of the stack,
the length of the extensions 9 of each of the lamellar bodies 6, 7 being such that the extensions 9 of one of the lamellar bodies 6 overlap with the extensions 9 of the other lamellar body 7, so that each lamellar body 6, 7 can be introduced laterally with respect to the tubes 2 and constitute a deflector of the cooling fluid.

Par conséquent, en d'autres termes, les déflecteurs sont constitués de deux pièces qui ont une forme de peigne et qu'on assemble par les côtés en introduisant les dents du peigne entre les tubes 2. Les extrémités de ces « peignes » se superposent pour constituer l'équivalent d'une pièce monobloc.Therefore, in other words, the baffles are made of two pieces which have a comb shape and are assembled by the sides by introducing the teeth of the comb between the tubes 2. The ends of these "combs" are superimposed to constitute the equivalent of a single piece.

Le fait que l'assemblage soit effectué par le côté perpendiculairement par contraste avec l'assemblage en parallèle, c'est-à-dire au moyen d'une introduction dans la direction longitudinale, évite de devoir prévoir des découpes en correspondance des protubérances d'union sur les pièces qui constituent le déflecteur. Ces découpes seraient nombreuses et par conséquent cela impliquerait des passages de choix indésirables pour le fluide de refroidissement.The fact that the assembly is made by the side perpendicularly in contrast with the assembly in parallel, that is to say by means of an introduction in the longitudinal direction, avoids having to provide cutouts in correspondence of the protuberances d union on the parts that constitute the deflector. These cuts would be numerous and therefore it would involve unwanted passages of choice for the cooling fluid.

Comme on peut le voir sur les figures, les tubes 2 sont munis sur leurs côtés supérieur et inférieur de protubérances P destinées à maintenir les tubes 2 assemblés entre eux et avec le boîtier 3.As can be seen in the figures, the tubes 2 are provided on their upper and lower sides with protuberances P intended to hold the tubes 2 assembled together and with the housing 3.

Comme on peut le voir sur les figures, selon un mode de réalisation préféré, l'échangeur comprend deux colonnes contiguës de tubes parallèles 2 de section rectangulaire disposés en empilement. Dans ce cas, évidemment, la section de passage entre tubes contigus suivant la direction horizontale n'est pas bouché par les pièces ou « peignes », mais il s'agit d'une section de peu d'importance.As can be seen in the figures, according to a preferred embodiment, the exchanger comprises two contiguous columns of parallel tubes 2 of rectangular section arranged in a stack. In this case, obviously, the cross section between contiguous tubes in the horizontal direction is not blocked by the pieces or "combs", but it is a section of little importance.

Chaque corps lamellaire 6, 7 comprend une section terminale 10 parallèle aux extensions 9 et qui obstrue la section de passage de fluide de refroidissement entre le boîtier 3 et le tube inférieur ou supérieur de l'empilement. On peut assembler par soudure cette section terminale 10 à la surface supérieure (inférieure) du tube supérieur (inférieur), pour contribuer à fixer les déflecteurs aux tubes.Each lamellar body 6, 7 comprises an end section 10 parallel to the extensions 9 and which obstructs the section of cooling fluid passage between the housing 3 and the lower or upper tube of the stack. This terminal section 10 can be welded to the upper (lower) surface of the upper (lower) tube to help secure the baffles to the tubes.

L'échangeur comprend une entrée frontale supérieure 11 de fluide de refroidissement et une sortie postérieure latérale 12 de fluide de refroidissement, deux corps lamellaires 6, 7 disposés pour obstruer la section de passage de fluide de refroidissement par la partie supérieure immédiatement en aval de l'entrée frontale supérieure 11 de fluide de refroidissement et deux corps lamellaires 6', 7' disposés pour obstruer la section de passage de fluide de refroidissement par la partie inférieure immédiatement en amont de la sortie postérieure latérale 12 de fluide de refroidissement.The exchanger comprises an upper front inlet 11 of cooling fluid and a rear lateral outlet 12 of cooling fluid, two lamellar bodies 6, 7 arranged to obstruct the section of cooling fluid passage through the upper part immediately downstream of the upper frontal inlet 11 of cooling fluid and two lamellar bodies 6 ', 7' arranged to obstruct the cooling fluid passage section through the lower part immediately upstream of the lateral rear outlet 12 of cooling fluid.

Sur la figure 1 on peut discerner la modification générale du flux de fluide de refroidissement qu'on obtient avec les deux paires de pièces déflectrices. Évidemment, on peut utiliser toute combinaison de pièces déflectrices pour atteindre le flux souhaité.On the figure 1 it is possible to discern the general change in the flow of cooling fluid obtained with the two pairs of deflector parts. Of course, any combination of deflector parts can be used to achieve the desired flow.

Chacune des premières sections 8 comprend des joues 13 qui s'étendent perpendiculairement depuis leur bord de contact avec les tubes, de sorte qu'elles constituent des plaques de fixation latérale aux tubes 2.Each of the first sections 8 comprises cheeks 13 which extend perpendicularly from their edge of contact with the tubes, so that they constitute lateral attachment plates to the tubes 2.

Enfin, les pièces qui constituent les déflecteurs comprennent des découpes 14 destinées à laisser passer les protubérances internes d'assemblage du boîtier, car le montage de celui-ci se fait par glissement sur l'ensemble une fois les déflecteurs placés sur les tubes et fixés à ceux-ci.Finally, the parts which constitute the baffles comprise cutouts 14 intended to allow the inner protuberances of assembly of the housing to pass, since the assembly thereof is made by sliding over the assembly once the baffles are placed on the tubes and fixed. to these.

Comme on peut le voir par exemple sur les figures 1 et 3, les pièces couvrent entre la moitié et les deux tiers de la section de passage, même si on pourra dans chaque cas déterminer le nombre de paires de pièces optimal pour obtenir le flux de fluide de refroidissement souhaité.As can be seen for example on Figures 1 and 3 , the parts cover between half and two thirds of the passage section, although in each case it will be possible to determine the number of optimal pairs of parts to obtain the desired flow of cooling fluid.

Bien que l'on ait fait référence à un mode de réalisation concret de l'invention, il est évident pour un homme du métier que l'échangeur décrit ici est susceptible de nombreuses variantes et modifications et que tous les détails mentionnés peuvent être remplacés par d'autres techniquement équivalents, sans que l'on s'écarte du boîtier de protection défini par les revendications ci-jointes.Although reference has been made to a concrete embodiment of the invention, it is obvious to a person skilled in the art that the exchanger described here is susceptible of numerous variations and modifications and that all the details mentioned can be replaced by others technically equivalent, without departing from the protective casing defined by the attached claims.

Claims (8)

  1. Heat exchanger (1), which comprises:
    • at least one column of parallel tubes (2) which are arranged in a stack and which define a longitudinal direction;
    • a housing (3) inside which the tubes (2) are housed, the tubes (2) being separated from one another, so as to configure a channel for the passage of cooling fluid consisting of:
    ∘ passage sections (4) between tubes (2) that are contiguous in the direction of the stack;
    ∘ passage sections (5) between tubes and housing (3); and
    • baffles (6, 7) that deflect the cooling fluid;
    and which is characterized in that the baffles are at least two lamellar bodies (6, 7) of a single piece arranged in a plane perpendicular to the longitudinal direction and cut out in such a way that each has:
    - a first section (8) able to partially obstruct a passage section (5) between tubes and housing (3),
    - extensions (9) which extend from said first section (8) at right angles thereto and which are able to obstruct passage sections (4) between tubes (2) that are contiguous in the direction of the stack,
    the length of the extensions (9) of each of the lamellar bodies (6, 7) being such that the extensions (9) of one of the lamellar bodies (6) overlap with the extensions (9) of the other lamellar body (7) so that each lamellar body (6, 7) can be introduced laterally with respect to the tubes (2) and constitute a baffle that deflects the cooling fluid.
  2. Exchanger according to Claim 1, in which the tubes (2) are equipped on their upper and lower sides with protrusions (P) intended to keep the tubes (2) assembled with each other and with the housing (3).
  3. Exchanger according to either one of the preceding claims, in which the tubes are of rectangular cross section.
  4. Exchanger according to Claim 1 or 2, which comprises two contiguous columns of parallel tubes (2) of rectangular cross section arranged in the stack.
  5. Exchanger according to any one of the preceding claims, in which each lamellar body (6, 7) comprises a terminal section (10) parallel to the extensions (9) and which obstructs the passage section for cooling fluid between the housing (3) and the lower or upper tube of the stack.
  6. Exchanger according to Claims 2 and 5, in which the terminal section (10) of the lamellar bodies (6, 7) comprises cutouts (14) able to collaborate with the protrusions (P) of the housing (3).
  7. Exchanger according to any one of the preceding claims, which comprises an upper frontal inlet (11) for cooling fluid and a lateral posterior outlet (12) for cooling fluid, two lamellar bodies (6, 7) arranged to obstruct the passage section for cooling fluid via the upper part immediately downstream of the upper frontal inlet (11) for cooling fluid and two lamellar bodies (6', 7') arranged to obstruct the passage section for cooling fluid via the lower part immediately upstream of the lateral posterior outlet (12) for cooling fluid.
  8. Exchanger according to any one of the preceding claims, in which each of the first sections (8) comprises flanges (13) which extend at right angles from their edge for contact with the tubes so that they constitute plates for fixing to the tubes (2).
EP15747410.7A 2014-07-25 2015-07-24 Heat exchanger having a baffle Active EP3172518B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201431124A ES2557388B1 (en) 2014-07-25 2014-07-25 Heat exchanger provided with baffle
PCT/EP2015/067081 WO2016012621A1 (en) 2014-07-25 2015-07-24 Heat exchanger having a baffle

Publications (2)

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EP3172518A1 EP3172518A1 (en) 2017-05-31
EP3172518B1 true EP3172518B1 (en) 2018-06-06

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EP15747410.7A Active EP3172518B1 (en) 2014-07-25 2015-07-24 Heat exchanger having a baffle

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US (1) US10126074B2 (en)
EP (1) EP3172518B1 (en)
JP (1) JP6391824B2 (en)
KR (1) KR101954545B1 (en)
CN (1) CN107076519B (en)
ES (2) ES2557388B1 (en)
WO (1) WO2016012621A1 (en)

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KR102692185B1 (en) * 2018-11-14 2024-08-07 한온시스템 주식회사 Heat exchanger
WO2020101152A1 (en) * 2018-11-14 2020-05-22 한온시스템 주식회사 Heat exchanger
CN110579121A (en) * 2019-09-16 2019-12-17 佛山市科蓝环保科技股份有限公司 Cross type heat exchange structure and heat exchange device with same
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CN112361868A (en) * 2020-11-13 2021-02-12 浙江银轮机械股份有限公司 Flow guide plate and heat exchanger

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Publication number Publication date
CN107076519A (en) 2017-08-18
ES2680821T3 (en) 2018-09-11
EP3172518A1 (en) 2017-05-31
KR101954545B1 (en) 2019-03-05
KR20170033885A (en) 2017-03-27
WO2016012621A1 (en) 2016-01-28
JP6391824B2 (en) 2018-09-19
JP2017522536A (en) 2017-08-10
ES2557388A1 (en) 2016-01-25
US20170153071A1 (en) 2017-06-01
US10126074B2 (en) 2018-11-13
ES2557388B1 (en) 2016-11-14
CN107076519B (en) 2019-06-14

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