EP2097705A2 - Heat exchanger with plates - Google Patents

Heat exchanger with plates

Info

Publication number
EP2097705A2
EP2097705A2 EP07871987A EP07871987A EP2097705A2 EP 2097705 A2 EP2097705 A2 EP 2097705A2 EP 07871987 A EP07871987 A EP 07871987A EP 07871987 A EP07871987 A EP 07871987A EP 2097705 A2 EP2097705 A2 EP 2097705A2
Authority
EP
European Patent Office
Prior art keywords
spacer
plates
heat exchanger
seal
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.)
Granted
Application number
EP07871987A
Other languages
German (de)
French (fr)
Other versions
EP2097705B1 (en
Inventor
Olivier Noel-Baron
Christophe Wibaut
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.)
Alfa Laval Vicarb SAS
Original Assignee
Alfa Laval Vicarb SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfa Laval Vicarb SAS filed Critical Alfa Laval Vicarb SAS
Priority to PL07871987T priority Critical patent/PL2097705T3/en
Publication of EP2097705A2 publication Critical patent/EP2097705A2/en
Application granted granted Critical
Publication of EP2097705B1 publication Critical patent/EP2097705B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins

Definitions

  • the invention relates to the field of plate heat exchangers between which flow two fluids carried at different temperatures and one receives / evacuates the heat energy of the other.
  • the invention relates more particularly to large plate heat exchangers, whose frame has inside a guide rail for guiding the plates parallel to the inside of the frame before making the clamping plates on each other to seal between the two circuits.
  • a peripheral seal is positioned on each of the plates of the exchanger.
  • Such plates equipped with peripheral sealing seals are described in particular in document GB-I 592 069.
  • the object of the invention is therefore to eliminate the offset that may occur between the different plates of a heat exchanger when positioning the plates in the frame and then clamping the plates against each other. In addition, this objective is achieved without degrading the sealing function performed by the peripheral seal. DESCRIPTION OF THE INVENTION
  • the invention therefore relates to a heat exchanger comprising a set of plates defining between them fluid circuits circulating alternately by means of seals reported between each pair of two adjacent plates.
  • Each plate comprises at least one guide cutout formed at at least one of its ends and which guides each plate inside a frame.
  • the heat exchanger is characterized in that it also comprises between each pair of two adjacent plates, and in the vicinity of the guide cutout, at least one distance between the board intended to be compressed and arranged in contact with the two adjacent plates, each spacer having, before compression, a thickness at least equal to that of the seal.
  • the plates are all arranged parallel to each other and no offset can occur, even during the pressurization of the seal since the spacer positioned near the guiding cut prevent any tilting of one plate relative to the other.
  • each spacer can be inserted into a groove in one of the plates with which it comes into contact.
  • the spacer can be positioned, or even glued, inside a groove to prevent slippage of the spacer during tightening in particular.
  • These grooves are generally made by means of a press and a stamp during the stamping operation of the plates to generate a plurality of corrugations and thus increase the surface of the heat exchange between the fluids inside the plate. exchanger.
  • each spacer may have a substantially rectangular parallelepiped shape. In this way, it has two parallel faces, and it has a constant section compatible with a manufacturing process such as extrusion or molding.
  • each spacer may have a compressibility greater than that of the seal.
  • the spacer which has a thickness greater than that of the seal, is able to compress without hindering the subsequent compression of the seal.
  • such a spacer may be made in different ways and may or may not be secured to the seal.
  • each spacer may be a protrusion of the seal.
  • the seal and the spacer form a monolithic assembly that can be achieved in a single operation, in particular by a molding process.
  • the heat exchanger may comprise a connecting portion between each seal and each spacer.
  • This configuration makes it possible to position the spacer close to the guide cutout, without modifying the position of the seal on the plate.
  • This connecting portion serves only to facilitate the manufacture of the heat exchanger by avoiding increasing the number of parts constituting it and the positioning of the spacer on the plate.
  • This connecting portion has a thickness less than that of the seal, and therefore to that of the spacer as well.
  • each spacer may be disjoint from the seal. In this way, it is possible to arrange each of the elements on a plate independently. Such a variant thus makes it possible to eliminate the connecting portion and to use the existing seals in the conventional heat exchangers already manufactured.
  • seals and spacers can be envisaged and in particular they can be made in different materials or not.
  • the between toises and seals can be made of the same material.
  • they may for example be molded in the same mold and manufactured simultaneously.
  • the spacers and the seals can be made in two different materials. In this way, it is particularly possible to adapt the compressibility of the spacers to not locally modify the compressibility of the seal.
  • FIG. partial section of a heat exchanger according to the invention is a partial front view of an exchanger plate
  • Figures 3 and 4 are cross-sectional views of different forms of the spacer at the gap between two plates before performing their clamping against each other.
  • the invention relates to a heat exchanger (1) as shown in FIG. 1.
  • This type of plate heat exchanger (10) thus comprises two fluid circuits (2, 3) in which two fluids circulate to exchange their heat energy. As shown, these circuits (2, 3) are delimited by a seal (4) defining the periphery of the exchange zone on each plate.
  • the plates (10) are positioned inside a frame (6) and are guided in this frame by means of a guide cutout (5) cooperating with an attached rail at the frame (6). Between spacers (7) then allow to position each plate (10) equidistant from each other and parallel to the guide rail. Thus, the spacers (7) ensure the parallel positioning of the plates relative to each other before the clamping operation to compress the seal (4).
  • the spacers (7) may form a protrusion of the seal (4). This embodiment facilitates assembly and manufacturing operations of such an exchanger (1).
  • the spacers (17) can also be disjointed from the seal (4).
  • the spacers (17) can also be disjointed from the seal (4).
  • the spacer (7) is in this case an outgrowth of the seal (4) and is connected thereto via a connecting portion (9). Furthermore, the thickness (E) of the spacer (7) is greater than the thickness (e) of the seal (4). In this way, an upper face (27) of the spacer (7) comes first into contact with the upper plate (11) when positioning the plates (10, 11) facing each other in the chassis (6). For example, it can be used a joint having a thickness e of 6mm combined with a spacer having a thickness E of 6.2mm.
  • a lower face (37) of the spacer (7) cooperates with a groove (8) so as to facilitate the establishment and securing of the spacer (7) on the plate (10).
  • the spacer (7) must be very precisely positioned on the plate (10) so as to cooperate with a flat surface on the back of the plate (11) opposite.
  • the upper (27) and lower (37) faces are, in the variant shown, substantially planar so as to form a spacer (7) of substantially rectangular parallelepiped shape.
  • the upper (27) and lower (37) faces may also form a concave-shaped left surface before compression.
  • the contact between the spacer (7) and the adjacent plate (11) is linear before becoming surface.
  • Such a linear contact near the guide rail ensures the parallel positioning of the plates relative to each other.
  • a plate heat exchanger according to the invention has multiple advantages, and in particular:

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

Abstract

The invention relates to a heat exchanger (1) including a set of plates (10) defining between them circuits (2, 3) for a fluid flowing alternatively via seals (4) mounted between each couple of two adjacent plates, each plates including at least one guiding cut (5) formed at least at one of the ends thereof for guiding each plate inside a frame (6). According to the invention, the exchanger is characterised in that it further comprises between each couple of two adjacent plates and in the vicinity of the guiding cut (5) at least one strut (7) to be compressed and in contact with the two adjacent plates, each strut (7) having before compression a thickness at least equal to that of the seal.

Description

ECHANGEUR THERMIQUE A PLAQUES. THERMAL EXCHANGER WITH PLATES.
DOMAINE TECHNIQUETECHNICAL AREA
L'invention se rapporte au domaine des échangeurs thermiques à plaques entre lesquelles circulent deux fluides portés à des températures différentes et dont l'un reçoit/évacue l'énergie calorifique de l'autre.The invention relates to the field of plate heat exchangers between which flow two fluids carried at different temperatures and one receives / evacuates the heat energy of the other.
L'invention vise plus particulièrement des échangeurs à plaques de grandes dimensions, dont le châssis présente à l'intérieur un rail de guidage permettant de guider les plaques parallèlement à l'intérieur du châssis avant de réaliser le serrage des plaques les unes sur les autres pour assurer l'étanchéité entre les deux circuits.The invention relates more particularly to large plate heat exchangers, whose frame has inside a guide rail for guiding the plates parallel to the inside of the frame before making the clamping plates on each other to seal between the two circuits.
ART ANTÉRIEURPRIOR ART
De façon générale, de manière à assurer l'étanchéité entre les différents circuits de fluide, un joint périphérique est positionné sur chacune des plaques de l'échangeur. De telles plaques équipées de joints périphériques d'étanchéité sont notamment décrits dans le document GB-I 592 069.In general, in order to ensure the seal between the different fluid circuits, a peripheral seal is positioned on each of the plates of the exchanger. Such plates equipped with peripheral sealing seals are described in particular in document GB-I 592 069.
Cependant, lorsque les plaques sont de très grandes dimensions, il peut se produire un décalage entre chacune des plaques lors de leur introduction à l'intérieur du châssis puis lors du serrage des plaques les unes contre les autres. Ce décalage peut notamment être dû à l'utilisation d'un joint d'étanchéité présentant une forme pointue également désigné par le terme de « ROOF TOP ». En effet, lorsqu'une plaque vient en contact de la pointe du joint d'étanchéité de la plaque adjacente, celle-ci se positionne alors sensiblement en travers et bascule autour de l'arête définie par la pointe du joint d'étanchéité. Ce phénomène est d'autant plus marqué lorsque les plaques présentent une seule découpe de guidage pour faciliter la mise en place des plaques à l'intérieur du châssis.However, when the plates are very large, there may be a shift between each of the plates during their introduction to the interior of the frame and when clamping the plates against each other. This offset may notably be due to the use of a seal having a pointed shape also designated by the term "ROOF TOP". Indeed, when a plate comes into contact with the tip of the seal of the adjacent plate, it is then positioned substantially across and tilts around the edge defined by the tip of the seal. This phenomenon is even more marked when the plates have a single guide cutout to facilitate the introduction of the plates inside the frame.
Le but de l'invention est donc de supprimer le décalage qui peut se produire entre les différentes plaques d'un échangeur thermique lors du positionnement des plaques dans le châssis puis du serrage des plaques les unes contre les autres. De plus, cet objectif est atteint sans pour autant dégrader la fonction d'étanchéité réalisée par le joint périphérique. DESCRIPTION DE L'INVENTIONThe object of the invention is therefore to eliminate the offset that may occur between the different plates of a heat exchanger when positioning the plates in the frame and then clamping the plates against each other. In addition, this objective is achieved without degrading the sealing function performed by the peripheral seal. DESCRIPTION OF THE INVENTION
L'invention concerne donc un échangeur thermique comportant un ensemble de plaques définissant entre elles des circuits de fluide circulant en alternance au moyen de joints d'étanchéité rapportés entre chaque couple de deux plaques adjacentes. Chaque plaque comprend au moins une découpe de guidage ménagée au niveau d'au moins une de ses extrémités et qui permet de guider chaque plaque à l'intérieur d'un châssis.The invention therefore relates to a heat exchanger comprising a set of plates defining between them fluid circuits circulating alternately by means of seals reported between each pair of two adjacent plates. Each plate comprises at least one guide cutout formed at at least one of its ends and which guides each plate inside a frame.
Selon l'invention, l' échangeur thermique se caractérise en ce qu'il comprend également entre chaque couple de deux plaques adjacentes, et à proximité de la découpe de guidage, au moins une entre toise destinée à être comprimée et agencée au contact des deux plaques adjacentes, chaque entretoise présentant, avant compression, une épaisseur au moins égale à celle du joint d'étanchéité.According to the invention, the heat exchanger is characterized in that it also comprises between each pair of two adjacent plates, and in the vicinity of the guide cutout, at least one distance between the board intended to be compressed and arranged in contact with the two adjacent plates, each spacer having, before compression, a thickness at least equal to that of the seal.
Autrement dit, lorsqu'on positionne les plaques de l'échangeur à l'intérieur du châssis, celles-ci s'orientent parallèlement les unes par rapport aux autres en venant au contact de l'entretoise positionnée sur la plaque adjacente. Par ailleurs, avant de réaliser le serrage des plaques les unes contre les autres, le joint d'étanchéité n'est pas sollicité et par conséquent il ne vient pas au contact de la plaque adjacente.In other words, when positioning the plates of the exchanger inside the frame, they are oriented parallel to each other by coming into contact with the spacer positioned on the adjacent plate. Furthermore, before making the clamping plates against each other, the seal is not stressed and therefore it does not come into contact with the adjacent plate.
Ainsi, lorsque le serrage des plaques commence, les plaques sont toutes agencées parallèlement les unes par rapport aux autres et aucun décalage ne peut se produire, même lors de la mise en pression du joint d'étanchéité puisque l'entretoise positionnée à proximité de la découpe de guidage empêcher tout basculement d'une plaque par rapport à l'autre.Thus, when the clamping of the plates begins, the plates are all arranged parallel to each other and no offset can occur, even during the pressurization of the seal since the spacer positioned near the guiding cut prevent any tilting of one plate relative to the other.
Avantageusement, chaque entretoise peut être insérée dans une gorge ménagée dans l'une des plaques avec laquelle elle vient en contact.Advantageously, each spacer can be inserted into a groove in one of the plates with which it comes into contact.
En effet, comme le joint d'étanchéité, l'entretoise peut être positionnée, voire collée, à l'intérieur d'une gorge permettant d'éviter le glissement de l'entretoise lors du serrage notamment. Ces gorges sont généralement réalisées au moyen d'une presse et d'une estampe lors de l'opération de matriçage des plaques pour générer une pluralité de corrugations et ainsi augmenter la surface de l'échange thermique entre les fluides à l'intérieur de l'échangeur.Indeed, like the seal, the spacer can be positioned, or even glued, inside a groove to prevent slippage of the spacer during tightening in particular. These grooves are generally made by means of a press and a stamp during the stamping operation of the plates to generate a plurality of corrugations and thus increase the surface of the heat exchange between the fluids inside the plate. exchanger.
En pratique, chaque entretoise peut présenter une forme sensiblement parallélépipédique rectangle. De cette manière, il comporte deux faces parallèles, et il présente une section constante compatible avec un procédé de fabrication tel que l'extrusion ou le moulage.In practice, each spacer may have a substantially rectangular parallelepiped shape. In this way, it has two parallel faces, and it has a constant section compatible with a manufacturing process such as extrusion or molding.
Selon un mode de réalisation particulier, chaque entretoise peut présenter une compressibilité supérieure à celle du joint d'étanchéité.According to a particular embodiment, each spacer may have a compressibility greater than that of the seal.
Ainsi, lors du serrage des plaques les unes contre les autres, l'entretoise, qui présente une épaisseur supérieure à celle du joint d'étanchéité, est apte à se comprimer sans gêner la compression ultérieure du joint d'étanchéité.Thus, during the clamping of the plates against each other, the spacer, which has a thickness greater than that of the seal, is able to compress without hindering the subsequent compression of the seal.
Par ailleurs, une telle entretoise peut être réalisée de différentes manières et être ou non solidarisée au joint d'étanchéité.Moreover, such a spacer may be made in different ways and may or may not be secured to the seal.
Selon une première variante, chaque entretoise peut être une excroissance du joint d'étanchéité. Ainsi, le joint et l'entretoise forment un ensemble monolithique qui peut être réalisé en une seule opération, notamment par un procédé de moulage.According to a first variant, each spacer may be a protrusion of the seal. Thus, the seal and the spacer form a monolithic assembly that can be achieved in a single operation, in particular by a molding process.
Avantageusement, l'échangeur thermique peut comporter une portion de liaison entre chaque joint d'étanchéité et chaque entretoise. Cette configuration permet de positionner l'entretoise à proximité de la découpe de guidage, sans pour autant modifier la position du joint d'étanchéité sur la plaque. Cette portion de liaison n'a pour fonction que de faciliter la fabrication de l'échangeur en évitant d'augmenter le nombre de pièces le constituant ainsi que la mise en position de l'entretoise sur la plaque. Cette portion de liaison présente une épaisseur inférieure à celle du joint d'étanchéité, et par conséquent à celle de l'entretoise également. Selon une seconde variante, chaque entretoise peut être disjointe du joint d'étanchéité. De cette manière, il est possible de réaliser la disposition de chacun des éléments sur une plaque de manière indépendante. Une telle variante permet donc de supprimer la portion de liaison et d'utiliser les joints d'étanchéité existants dans les échangeurs thermiques classiques d'ores et déjà fabriqués.Advantageously, the heat exchanger may comprise a connecting portion between each seal and each spacer. This configuration makes it possible to position the spacer close to the guide cutout, without modifying the position of the seal on the plate. This connecting portion serves only to facilitate the manufacture of the heat exchanger by avoiding increasing the number of parts constituting it and the positioning of the spacer on the plate. This connecting portion has a thickness less than that of the seal, and therefore to that of the spacer as well. According to a second variant, each spacer may be disjoint from the seal. In this way, it is possible to arrange each of the elements on a plate independently. Such a variant thus makes it possible to eliminate the connecting portion and to use the existing seals in the conventional heat exchangers already manufactured.
Différents modes de réalisation des joints d'étanchéité et des entretoises peuvent être envisagés et notamment ils peuvent être réalisés dans des matériaux distincts ou non.Different embodiments of seals and spacers can be envisaged and in particular they can be made in different materials or not.
Ainsi, selon un premier mode de réalisation, les entre toises et les joints d'étanchéité peuvent être réalisés dans un même matériau. Ainsi, ils peuvent être par exemple être moulés dans le même moule et fabriqués simultanément.Thus, according to a first embodiment, the between toises and seals can be made of the same material. Thus, they may for example be molded in the same mold and manufactured simultaneously.
Selon un second mode de réalisation, les entretoises et les joints d'étanchéité peuvent être réalisés dans deux matériaux distincts. De cette manière, il est notamment possible d'adapter la compressibilité des entretoises pour ne pas modifier localement la compressibilité du joint d'étanchéité.According to a second embodiment, the spacers and the seals can be made in two different materials. In this way, it is particularly possible to adapt the compressibility of the spacers to not locally modify the compressibility of the seal.
DESCRIPTION SOMMAIRE DES FIGURESSUMMARY DESCRIPTION OF THE FIGURES
La manière de réaliser l'invention et les avantages qui en découlent, ressortiront bien de la description du mode de réalisation qui suit, donné à titre indicatif mais non limitatif, à l'appui des figures dans lesquelles : la figure 1 est une vue en coupe partielle d'un échangeur thermique conforme à l'invention ; - la figure 2 est une vue de face partielle d'une plaque d'échangeur ; les figures 3 et 4 sont des vues en coupe transversale de différentes formes de l' entretoise au niveau de l'interstice entre deux plaques avant de réaliser leur serrage l'une contre l'autre.The manner of carrying out the invention and the advantages which result therefrom will be apparent from the description of the embodiment which follows, given by way of indication but not by way of limitation, in support of the figures in which: FIG. partial section of a heat exchanger according to the invention; FIG. 2 is a partial front view of an exchanger plate; Figures 3 and 4 are cross-sectional views of different forms of the spacer at the gap between two plates before performing their clamping against each other.
MANIERE DE DECRIRE L'INVENTIONHOW TO DESCRIBE THE INVENTION
Comme déjà évoqué, l'invention concerne un échangeur thermique (1) tel que représenté à la figure 1. Ce type d'échangeur à plaques (10) comprend ainsi deux circuits de fluide (2,3) dans lesquels deux fluides circulent pour échanger leur énergie calorifique. Tel que représenté, ces circuits (2, 3) sont délimités par un joint d'étanchéité (4) définissant la périphérie de la zone d'échange sur chaque plaque. Les plaques (10) sont positionnées à l'intérieur d'un châssis (6) et sont guidées dans ce châssis au moyen d'une découpe de guidage (5) coopérant avec un rail rapporté au niveau du châssis(6). Des entre toises (7) permettent alors de positionner chaque plaque (10) à égale distance l'une de l'autre et parallèlement à proximité de ce rail de guidage. Ainsi, les entretoises (7) permettent d'assurer le positionnement parallèle des plaques les unes par rapport aux autres avant l'opération de serrage visant à comprimer le joint d'étanchéité (4).As already mentioned, the invention relates to a heat exchanger (1) as shown in FIG. 1. This type of plate heat exchanger (10) thus comprises two fluid circuits (2, 3) in which two fluids circulate to exchange their heat energy. As shown, these circuits (2, 3) are delimited by a seal (4) defining the periphery of the exchange zone on each plate. The plates (10) are positioned inside a frame (6) and are guided in this frame by means of a guide cutout (5) cooperating with an attached rail at the frame (6). Between spacers (7) then allow to position each plate (10) equidistant from each other and parallel to the guide rail. Thus, the spacers (7) ensure the parallel positioning of the plates relative to each other before the clamping operation to compress the seal (4).
Dans la variante représentée, les entretoises (7) peuvent former une excroissance du joint d'étanchéité (4). Ce mode de réalisation permet de faciliter les opérations d'assemblage et de fabrication de d'un tel échangeur (1).In the variant shown, the spacers (7) may form a protrusion of the seal (4). This embodiment facilitates assembly and manufacturing operations of such an exchanger (1).
Tel que représenté par la variante de la figure 2, les entretoises (17) peuvent également être disjointes du joint d'étanchéité (4). Ainsi, il est possible de réaliser des échangeurs thermiques conformes à l'invention en utilisant un joint d'étanchéité classique d'ores et déjà produit.As shown by the variant of Figure 2, the spacers (17) can also be disjointed from the seal (4). Thus, it is possible to achieve heat exchangers according to the invention using a conventional gasket already produced.
Tel que représenté à la figure 3, l' entretoise (7) est dans ce cas une excroissance du joint d'étanchéité (4) et est liée à celui-ci par l'intermédiaire d'une portion de liaison (9). Par ailleurs, l'épaisseur (E) de l'entretoise (7) est supérieure à l'épaisseur (e) du joint d'étanchéité (4). De cette manière, une face supérieure(27) de l'entretoise (7) vient la première en contact avec la plaque supérieure (11) lors du positionnement des plaques (10,11) l'une en regard de l'autre dans le châssis (6). A titre d'exemple, il peut être utilisé un joint présentant une épaisseur e de 6mm combiné à une entretoise présentant une épaisseur E de 6.2mm.As shown in Figure 3, the spacer (7) is in this case an outgrowth of the seal (4) and is connected thereto via a connecting portion (9). Furthermore, the thickness (E) of the spacer (7) is greater than the thickness (e) of the seal (4). In this way, an upper face (27) of the spacer (7) comes first into contact with the upper plate (11) when positioning the plates (10, 11) facing each other in the chassis (6). For example, it can be used a joint having a thickness e of 6mm combined with a spacer having a thickness E of 6.2mm.
Par ailleurs, une face inférieure (37) de l'entretoise (7) vient coopérer avec une gorge (8) de façon à faciliter la mise en place et la solidarisation de l'entretoise (7) sur la plaque (10). En effet, l'entretoise (7) doit être très précisément positionnée sur la plaque (10) de manière à coopérer avec une surface plane au dos de la plaque (11) en regard. Les faces supérieure (27) et inférieure (37) sont, dans la variante représentée, sensiblement planes de manière à former une entretoise (7) de forme sensiblement parallélépipédique rectangle.Furthermore, a lower face (37) of the spacer (7) cooperates with a groove (8) so as to facilitate the establishment and securing of the spacer (7) on the plate (10). Indeed, the spacer (7) must be very precisely positioned on the plate (10) so as to cooperate with a flat surface on the back of the plate (11) opposite. The upper (27) and lower (37) faces are, in the variant shown, substantially planar so as to form a spacer (7) of substantially rectangular parallelepiped shape.
Selon une autre variante, et tel que représenté à la figure 4, les faces supérieure (27) et inférieure (37) peuvent aussi former une surface gauche de forme concave avant compression. Dans ce cas, lors du serrage, le contact entre l'entretoise (7) et la plaque adjacente (11) est linéique avant de devenir surfacique. Un tel contact linéique à proximité du rail de guidage permet cependant de garantir le positionnement parallèle des plaques les une par rapport aux autres.According to another variant, and as shown in FIG. 4, the upper (27) and lower (37) faces may also form a concave-shaped left surface before compression. In this case, during tightening, the contact between the spacer (7) and the adjacent plate (11) is linear before becoming surface. Such a linear contact near the guide rail, however, ensures the parallel positioning of the plates relative to each other.
Il ressort de ce qui précède qu'un échangeur à plaques conforme à l'invention présente de multiples avantages, et notamment :It follows from the above that a plate heat exchanger according to the invention has multiple advantages, and in particular:
- il permet de positionner parallèlement les plaques les unes par rapport aux autres, et ce perpendiculairement par rapport à la direction de poussée exercée lors du serrage des plaques l'une contre l'autre.- It allows parallel positioning of the plates relative to each other, and perpendicular to the direction of thrust exerted when clamping the plates against each other.
- il permet notamment d'utiliser un seul rail de guidage, facilitant ainsi la mise en place de plaques de très grandes dimensions. - It allows in particular to use a single guide rail, thus facilitating the establishment of very large plates.

Claims

REVENDICATIONS
1. Echangeur thermique (1) comportant un ensemble de plaques (10) définissant entre elles des circuits (2,3) de fluide circulant en alternance au moyen de joints d'étanchéité (4) rapportés entre chaque couple de deux plaques adjacentes, chaque plaque comprenant au moins une découpe de guidage (5) ménagée au niveau d'au moins une de ses extrémités et permettant de guider chaque plaque (10) à l'intérieur d'un châssis (6) caractérisé en ce qu'il comprend également entre chaque couple de deux plaques adjacentes, et à proximité de la découpe de guidage (5), au moins une entretoise (7) destinée à être comprimée et agencée au contact des deux plaques adjacentes (10,11), chaque entretoise (7,17) présentant, avant compression, une épaisseur au moins égale à celle du joint d'étanchéité.Heat exchanger (1) comprising a plurality of plates (10) defining between them alternately circulating fluid circuits (2,3) by means of gaskets (4) attached between each pair of two adjacent plates, each plate comprising at least one guide cutout (5) formed at at least one of its ends and for guiding each plate (10) inside a frame (6), characterized in that it also comprises between each pair of two adjacent plates, and near the guide cutout (5), at least one spacer (7) intended to be compressed and arranged in contact with the two adjacent plates (10, 11), each spacer (7, 17) having, before compression, a thickness at least equal to that of the seal.
2. Echangeur thermique selon la revendication 1, caractérisé en ce que chaque entretoise est insérée dans une gorge (8) ménagée dans l'une des plaques (10) avec laquelle elle vient en contact.2. Heat exchanger according to claim 1, characterized in that each spacer is inserted into a groove (8) formed in one of the plates (10) with which it comes into contact.
3. Echangeur thermique selon la revendication 1, caractérisé en ce que chaque entretoise (7,17) présente une forme sensiblement parallélépipédique rectangle.3. Heat exchanger according to claim 1, characterized in that each spacer (7,17) has a substantially rectangular parallelepiped shape.
4. Echangeur thermique selon la revendication 1, caractérisé en ce que chaque entretoise (7,17) présente une compressibilité supérieure à celle du joint d'étanchéité (4).4. Heat exchanger according to claim 1, characterized in that each spacer (7,17) has a compressibility greater than that of the seal (4).
5. Echangeur thermique selon la revendication 1, caractérisé en ce que chaque entretoise (7) est une excroissance du joint d'étanchéité (4).5. Heat exchanger according to claim 1, characterized in that each spacer (7) is an outgrowth of the seal (4).
6. Echangeur thermique selon la revendication 5, caractérisé en ce qu'il comporte une portion de liaison (9) entre chaque joint d'étanchéité (4) et chaque entretoise (7).6. Heat exchanger according to claim 5, characterized in that it comprises a connecting portion (9) between each seal (4) and each spacer (7).
7. Echangeur thermique selon la revendication 1, caractérisé en ce que chaque entretoise (17) est disjointe du joint d'étanchéité. 7. Heat exchanger according to claim 1, characterized in that each spacer (17) is disjoint from the seal.
8. Echangeur thermique selon l'une des revendications 5 ou 7, caractérisé en ce que les entretoises (7,17) et les joints d'étanchéité (4) sont réalisés dans un même matériau.8. Heat exchanger according to one of claims 5 or 7, characterized in that the spacers (7,17) and the seals (4) are made of the same material.
9. Echangeur thermique selon l'une des revendications 5 ou 7, caractérisé en ce que les entretoises (7,17) et les joints d'étanchéité (4) sont réalisés dans deux matériaux distincts. 9. Heat exchanger according to one of claims 5 or 7, characterized in that the spacers (7,17) and the seals (4) are made of two different materials.
EP07871987.9A 2006-12-21 2007-12-20 Heat exchanger with plates Active EP2097705B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07871987T PL2097705T3 (en) 2006-12-21 2007-12-20 Heat exchanger with plates

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0655792A FR2910607B1 (en) 2006-12-21 2006-12-21 PLATE HEAT EXCHANGER
PCT/FR2007/052576 WO2008084174A2 (en) 2006-12-21 2007-12-20 Heat exchanger with plates

Publications (2)

Publication Number Publication Date
EP2097705A2 true EP2097705A2 (en) 2009-09-09
EP2097705B1 EP2097705B1 (en) 2020-11-18

Family

ID=38330246

Family Applications (1)

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EP07871987.9A Active EP2097705B1 (en) 2006-12-21 2007-12-20 Heat exchanger with plates

Country Status (13)

Country Link
US (1) US8544529B2 (en)
EP (1) EP2097705B1 (en)
JP (1) JP5430404B2 (en)
CN (1) CN101573580B (en)
AU (1) AU2007343217B2 (en)
BR (1) BRPI0720444B1 (en)
CA (1) CA2673014C (en)
DK (1) DK2097705T3 (en)
ES (1) ES2842048T3 (en)
FR (1) FR2910607B1 (en)
PL (1) PL2097705T3 (en)
RU (1) RU2439457C2 (en)
WO (1) WO2008084174A2 (en)

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Also Published As

Publication number Publication date
JP2010513839A (en) 2010-04-30
ES2842048T3 (en) 2021-07-12
PL2097705T3 (en) 2021-06-14
WO2008084174A2 (en) 2008-07-17
FR2910607B1 (en) 2009-02-06
RU2439457C2 (en) 2012-01-10
BRPI0720444A2 (en) 2014-01-14
AU2007343217B2 (en) 2011-02-17
CN101573580A (en) 2009-11-04
JP5430404B2 (en) 2014-02-26
CN101573580B (en) 2010-12-01
CA2673014C (en) 2013-07-02
FR2910607A1 (en) 2008-06-27
US8544529B2 (en) 2013-10-01
US20100044021A1 (en) 2010-02-25
WO2008084174A3 (en) 2008-11-13
CA2673014A1 (en) 2008-07-17
RU2009128028A (en) 2011-01-27
AU2007343217A1 (en) 2008-07-17
DK2097705T3 (en) 2021-02-08
EP2097705B1 (en) 2020-11-18
BRPI0720444B1 (en) 2019-09-03

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