EP2781870B1 - Plate for heat exchanger and heat exchanger including such a plate - Google Patents

Plate for heat exchanger and heat exchanger including such a plate Download PDF

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Publication number
EP2781870B1
EP2781870B1 EP14160996.6A EP14160996A EP2781870B1 EP 2781870 B1 EP2781870 B1 EP 2781870B1 EP 14160996 A EP14160996 A EP 14160996A EP 2781870 B1 EP2781870 B1 EP 2781870B1
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European Patent Office
Prior art keywords
junction
plate
panel
support
panels
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EP14160996.6A
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German (de)
French (fr)
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EP2781870A1 (en
Inventor
Charles Bonnafous
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Nexson Group SAS
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Nexson Group SAS
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also 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
    • 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

Definitions

  • the invention relates to the field of heat exchangers with welded plates.
  • the invention relates to a plate for a heat exchanger and an associated heat exchanger.
  • the heat exchangers have the function of implementing a heat exchange between several fluids without mixing them.
  • Heat exchangers known as "welded plates” have been democratized for several decades. These exchangers have indeed good thermal performance thanks to their large exchange surface, while being compact.
  • a hot fluid and a cold fluid circulate respectively in the two ducts formed between the plates in two orthogonal directions.
  • each plate comprises a main panel having four sides and four joining panels extending from the sides of the main panel.
  • Each plate further comprises vertical fins extending from each corner of the main panel for securing the plate to the side members.
  • the entire plate package must be connected to the side members, this connection being generally made by welding the fins on the side members.
  • a disadvantage of the heat exchanger is that the fins are fragile and tend to deform under the effect of the pressure exerted by the fluids circulating in the ducts on the plates.
  • connection between the vertical fins and the longitudinal members is subjected to high mechanical stresses due in particular to the thermal expansions experienced by the plates. These stresses can cause breaks in the weld bead at the four corners of the plates, which may jeopardize the tightness of the ducts, or even open a gap between the two ducts.
  • each plate has flat-bottomed bowl shaped bosses formed in the main panel.
  • the bosses of two adjacent plates bear against each other to improve the rigidity of the stack.
  • the stack is welded to gutters covering the longitudinal members.
  • bosses have the effect of reducing the flow section of the fluid flow ducts and the bosses may be fouling zones.
  • each plate has an edge fitting into slots made on corner angles.
  • the interlocking of the plates in the corner angles makes it possible to hold the plates together.
  • the plates are welded to the angles by means of a vertical weld bead extending along the corner angle.
  • a disadvantage of the proposed heat exchanger is that the seal between the fluid circuits and the maintenance of the plates between them are only achieved once the plates are permanently welded to corner angles.
  • One of the aims of the invention is to propose a plate for a heat exchanger which allows the production of a sealed pack of plates and without fluid retention zones, without it being necessary to weld the plate pack on the angle plates. angle, and to be able to assemble a complete pack of plates in a heat exchanger.
  • the stack of plates is self-supporting, that is to say that the plates are held together without it being necessary to connect the plates corner angle.
  • the invention also relates to a heat exchanger plate pack formed by stacking a plurality of plates as defined above.
  • first junction panels and the second junction panels of one of the plates of the stack being respectively connected to second junction panels of a first adjacent plate in the stack to define a first conduit.
  • the invention also relates to a heat exchanger comprising a pack of plates as defined above.
  • the plate 1 for heat exchanger shown is formed in a single piece of material.
  • the plate 1 is formed by deformation of a flat sheet of weldable material, such as for example a steel sheet. This deformation can be obtained by stamping and / or folding, in a pressurized chamber or not. Alternatively, the plate 1 can be made by assembling several independent parts.
  • the plate 1 comprises a main panel 10 having eight sides, and eight side panels 11a, 11b, 12a, 12b, 20a to 20d connected by fold lines to the main panel 10.
  • the main panel 10 has an octagonal shape and has four junction sides 101a, 101b, 102a, 102b, and four support sides 100a, 100b, 100c, 100d.
  • the main panel 10 extends in a main plane parallel to the plane of the figure 3 .
  • the four junction sides 101a, 101b, 102a, 102b are divided into two pairs: a pair of opposing first junction sides 101a and 101b, and a pair of opposite second junction sides 102a and 102b.
  • the first junction sides 101a and 101b are parallel to each other.
  • the second junction sides 102a and 102b are parallel to each other.
  • the first junction sides 101a and 101b are perpendicular to the first junction sides 101a and 101b.
  • each support side 100a-100d extends between a first adjacent junction side 101a, 101b and a second adjacent junction side 102a, 102b. Accordingly, each junction side is not adjacent to any of the other three junction sides since a support side, by definition of nonzero length, is interposed between the two.
  • Each support side 100a, 100b, 100c, 100d is rectilinear and 45 ° oriented with respect to the first adjacent junction side and the second adjacent junction side.
  • the support side 100a is oriented at 45 ° with respect to the junction sides 101b and 102a.
  • the support side 100b is oriented at 45 ° with respect to the junction sides 101b and 102b.
  • the support side 100c is oriented at 45 ° with respect to the junction sides 101a and 102b.
  • the support side 100d is oriented at 45 ° with respect to the junction sides 101a and 102a.
  • the main panel 10 comprises a first face 103 (or lower face) and a second surface 104 (or upper face) opposite the first face 103.
  • the first and second main faces 103, 104 are generally flat and parallel to the main plane.
  • the faces 103 and 104 comprise reliefs 105.
  • the reliefs 105 are the grooves extending in a direction oriented at 45 ° with respect to the junction sides 101a, 101b, 102a and 102b of the main panel 10.
  • the reliefs 105 give the plate 1 the mechanical strength and increase the exchange surface between the fluids.
  • the thickness of the main panel 10 measured between the first and second faces 103 and 104 is small compared to the dimensions of the faces (on the plate 1 shown in FIG. figure 4 the thickness of the main panel 10 is neglected for simplicity).
  • junction panels 11a, 11b, 12a, 12b each extend from a respective junction side 101a, 101b, 102a, 102b.
  • Each junction panel 11a, 11b, 12a, 12b extends in a plane not parallel to the main plane. More specifically, each junction panel 11a, 11b, 12a, 12b extends in a plane perpendicular to the main plane.
  • Each first junction panel 11a, 11b extends from a respective first junction side 101a, 101b.
  • Each junction panel 11a, 11b is connected to the main panel 10 by a fold extending along a respective junction side 101a, 101b.
  • the first junction panels 11a and 11b are folded towards the first face 103 of the main panel 10.
  • the first junction panels 11a and 11b thus form with the main panel 10 a first half fluid flow duct.
  • each second junction panel 12a, 12b extends from a respective second junction side 102a, 102b.
  • Each junction panel 12a, 12b is connected to the main panel 10 by a fold extending along a respective junction side 102a, 102b.
  • the second junction panels 12a and 12b are folded towards the second face 104 of the main panel 10.
  • the second junction panels 12a and 12b thus form with the main panel 10 a second fluid flow conduit.
  • the first and second half fluid circulation ducts are separated from each other by the main panel 10 of the plate 1.
  • the pair of first junction panels 11a, 11b and the pair of second junction panels 12a, 12b extend on either side of the main plane.
  • junction panels 11a, 11b, 12a, 12b are perpendicular are all of identical height.
  • Each support panel 20a, 20b, 20c and 20d extends from a support side 100a, 100b, 100c and 100d. Unlike the joining panels 11a, 11b and 12a, 12b, all the support panels 20 extend on the same side of the main plane, namely on the side of the first surface 103.
  • the plate 1 is adapted to be firstly connected to a first adjacent plate 1a and secondly connected to a second adjacent plate 1b in a stack of plates, the adjacent plates 1a and 1b being identical to the plate 1 but turned 90 ° relative to the plate 1 about an axis perpendicular to the main plane.
  • each first junction panel 11a, 11b of the plate 1 is adapted to be connected to a respective second junction panel 12a, 12b of the first adjacent plate, thereby defining a first flow conduit of a first fluid in a direction X.
  • each second panel 12a, 12b of the junction of the plate 1 is adapted to be connected to the first junction panel 11a, 11b of the second adjacent plate 1b, thus defining a second circulation duct of a second fluid according to a Y direction, perpendicular to the X direction.
  • each support panel 20 of the plate 1 is adapted to be connected to a support panel of the first adjacent plate 1a.
  • each support panel 20 of the second adjacent plate 1b is adapted to be connected to a support panel of the plate 1.
  • the support side 100 of the main panel 10 extends between a first adjacent junction side 101 and a second adjacent junction side 102 of the plate 1.
  • the support panel 20 is located between a first adjacent junction panel 11 and a second adjacent junction panel 12. This configuration has the advantage that the support panel does not hinder the flow of a fluid flowing in the first conduit.
  • the first joint panel 11 extends on the side of the first face 103 on a first height H1
  • the second joint panel 12 extends in the opposite direction, on the side of the second surface 104 on a second height H2.
  • the support panel 20 includes a free edge 230 adapted to be connected to a support panel of a first adjacent plate (not shown in FIG. figure 4 ).
  • the support panel 20 extends on the side of the first face 103 over a support height equal to the sum H1 + H2 of the respective heights of the first 11 and second 12 junction panels.
  • This dimensioning makes it possible to fit the plate 1 with the first adjacent plate 1a illustrated in FIG. figure 3 .
  • each free edge of the support panel 20a to 20d of the plate 1 is connected with a plate support panel 1a.
  • each first junction panel 11a, 11b of the plate 1 is connected edge to edge with a second panel junction of the plate 1a.
  • each free edge of the support panel of the plate 1b is connected with a support panel 20a to 20d of the plate 1a at an edge support 100a to 100d.
  • each first junction panel of the plate 1b is connected edge to edge with a second junction panel 12a, 12b of the plate 1.
  • the support panel 20 comprises a primary portion 21 extending from the first surface 103, this primary portion extends the first adjacent connecting panel 11 without connection, which makes it possible in particular to seal the first conduit formed between the plates 1 and 1a, and to improve the rigidity of the plate 1.
  • the support panel 20 further comprises a first portion 21 of height H1 and a second portion 23 (or end portion) of height H2 extending in the extension of the first portion 21, the second portion 23 having a free edge 230 clean to bear on the edge 100 of the main panel 10.
  • the first portion 21 of the support panel 20 extends in the extension of the first joint panel 11, and the second portion 23 is adapted to be positioned in the extension of a second joint panel of the first adjacent plate 1a in the stacking.
  • the support panel 20 extends from the first surface 103 over a cumulative support height including the height H1 of the primary portion 21 and the height H2 of the end portion.
  • the first two junction panels 11a, 11b are of the same height H1 in a direction normal to the main plane, and the two second junction panels 12a, 12b are of the same height H2 in this same direction.
  • the main panels 10 of the plates 1 of the pack 4 are parallel to each other.
  • Each first junction panel 11 of the plate 1 is connected to a second junction panel 12 of the first adjacent plate 1a, thereby defining a first conduit C1 for circulating a first fluid F1 in the direction X.
  • each second junction panel 12 of the reference plate 1 is connected to a first junction panel 11 of the second adjacent plate, thereby defining a second conduit C2 for circulating a first fluid F2 in the direction Y.
  • Each free edge 230 of the reference plate 1 comes to rest on the first adjacent plate 1a.
  • Each free transverse edge 232 of a respective end portion 23 of the plate 1 is connected to a free transverse edge 122 of a second support panel 12 of the first adjacent plate 1a.
  • connection of the second adjacent plate 1b to the reference plate 1 is made in the same way, as is the connection of additional plates.
  • the plates 1, 1a and 1b of the pack of plates 4 are connected together by a weld bead 423 so as to constitute a pack 4 of plates in one piece.
  • Each first joining panel 11a, 11b of a plate is welded edge to edge with a second panel 12a, 12b joining an adjacent plate in the stack.
  • each transverse edge 232 of the end portion 23 of a support panel 20 is welded on the one hand to a transverse edge 122 of a second joint panel 12 and on the other hand to a support edge of the panel main 10 of another plate.
  • the welding is done according to the rules of the art end-to-end which differs from an edge-to-edge, edge-to-edge or overlap welding.
  • the type of welding chosen closely related to the geometry of the plate, avoids the creation of confinement zones inside the ducts may become clogged, and ultimately weaken the weld performed.
  • the heat exchanges between the first and second fluids F1, F2 are carried out through the respective main panels 10 of the plates 1, 1a and 1b.
  • the set of superimposed support panels of the pack 4 of plates form four uprights 42 at the four corners of the stack.
  • each upright 42 The dimensions of each upright 42 are increased each time a new plate is added to the package 4.
  • the four posts 42 obtained provide a support function of the plate pack 4.
  • the weight of the plates is effectively distributed over the four uprights without the risk of twisting the joining panels 20 and thus opening gaps in the conduits C1 and C2.
  • Each upright 42 includes an outer surface 420 defined by the set of support panels, each support panel of this set belonging to a specific plate of the pack 4 of plates. Consequently, each amount separates the first conduit C1 from the conduit C2 by this external surface 420 over its entire height. This surface, not reduce to a point, avoids leakage of fluids between the conduits C1 and C2.
  • Each outer surface 420 of the pack 4 of plates is a flat surface oriented at 45 ° with respect to the junction panels of the plates.
  • Each outer surface 420 has two longitudinal edges 422a, 422b: a first longitudinal edge 422a giving on the first conduit C1 of the package 4, and a second longitudinal edge 422b giving on the second conduit C2 of the package 4.
  • the heat exchanger 6 shown comprises an armature 60 comprising four spars 61a-61d defining a housing 64 provided for receiving the package 4.
  • the armature 60 also includes four angle brackets 62a-62d, each bracket having a substantially plane inner surface 620a-620d.
  • each outer surface 420 of a post is positioned in contact with the inner surface 620 of an angle bracket 62.
  • each bracket 62 has two longitudinal edges 622a, 622b. Each inner surface longitudinal edge 622a, 622b coincides with a respective longitudinal edge 422a, 422b of a post 42, once the plate pack 4 is housed in the housing 64.
  • a weld bead can then be applied at each longitudinal edge 622a, 622b to prevent relative movement of the pack 4 of plates relative to the frame.
  • Each bracket 62a-62d further comprises an outer surface 621a-621d.
  • each outer surface 621 has a central face and two lateral surfaces oriented 45 ° with respect to the central face.
  • Each spar 61 comprises an inner face resting against the outer surface 621 of an angle bracket 62.
  • the spars 61a-61d thus hold the plate pack 4 housed in the housing 64 in place.
  • the support panel 20 comprises a secondary portion 22 extending from the second surface 104 of the main panel 10, said secondary portion 22 extending the second adjacent junction panel 12.
  • the secondary portion 22 and the second adjacent junction panel 12 have identical heights equal to H2.
  • the support panel 20 extends on either side of the main panel 10.
  • the support height comprises the height H1 of the primary portion 21 extending from the first surface 103, and the height H2 of the secondary portion 22 extending from the second surface 104.
  • This embodiment reduces the total height of the plate 1 to a minimum value (equal to H1 + H2), and therefore its size. Such a plate will therefore advantageously consume a reduced storage space.
  • the plate according to this embodiment may be symmetrical with respect to the main plane.
  • the support panel 20 comprises a secondary portion 22 extending from the second surface 104 of the main panel 10 and integral with the second adjacent junction panel, and an end portion 23 connected to the primary portion and ending with the free end 230.
  • the sum of the respective heights of the secondary and end portions 22 of the support panel 20 is equal to the height H2 of the second adjacent junction panel 12.
  • the second adjacent junction panel 12 comprises a free edge 122 extending over a height equal to the height of the end portion 23.
  • the respective heights of the joining panels 11 and 12 may be identical and equal to a value H, and the respective heights of the secondary and terminal portions 22 and 22 may be equal to the half H / 2 of the common height of the panels. adjacent junction 11 and 12.
  • the free transverse edge 122 of the second junction panel is then of height equal to H / 2.
  • This configuration allows on the one hand to reduce the size of the plate according to its height, and on the other hand to prevent mobility relative of the plate relative to an adjacent plate in a plane parallel to their respective main panels.
  • the main panel 10 is of generally ovoid shape and the junction sides 101, 102 and support 100 are curved.
  • the uprights 42 formed on a pack 4 of plates according to this embodiment have respective non-planar external surfaces 420.
  • each support side 20 and a second adjacent junction side are of common direction.
  • each support panel may be of cylindrical shape.
  • the respective heights of the first and second junction panels may be identical equal to an H.
  • each plate 1, 1a, 1b is invariant in rotation shape 90 ° along an axis perpendicular to the plane of the main panel 10. This feature further facilitates the process of construction of a pack 4 plates; indeed, to be properly connected to an upper plate of the packet 4, said plate will have to undergo a rotation less than or equal to 90 ° with respect to a stack axis.
  • the first and second joining sides may be of identical lengths to balance the fluid flow times in the first and second conduits.

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention se rapporte au domaine des échangeurs thermiques à plaques soudées. L'invention concerne une plaque pour échangeur thermique et un échangeur thermique associé.The invention relates to the field of heat exchangers with welded plates. The invention relates to a plate for a heat exchanger and an associated heat exchanger.

ETAT DE LA TECHNIQUESTATE OF THE ART

Les échangeurs thermiques ont pour fonction de mettre en oeuvre un échange de chaleur entre plusieurs fluides sans pour autant les mélanger.The heat exchangers have the function of implementing a heat exchange between several fluids without mixing them.

Les échangeurs thermiques dits « à plaques soudées » se sont démocratisés depuis plusieurs dizaines d'années. Ces échangeurs présentent en effet de bonnes performances thermiques grâce à leur grande surface d'échange, tout en étant compacts.Heat exchangers known as "welded plates" have been democratized for several decades. These exchangers have indeed good thermal performance thanks to their large exchange surface, while being compact.

Les échangeurs thermiques à plaque soudées comprennent généralement deux parties :

  • une partie interne comprenant un empilement (ou paquet) de plaques superposées définissant entre elles deux conduits séparés de circulation de fluide, et
  • une partie externe comprenant un bâti formant une enceinte destinée à loger le paquet de plaques, le bâti comprenant quatre longerons et des parois latérales fixées sur les longerons et définissant avec les longerons des chambres indépendantes de distribution de fluide.
Welded plate heat exchangers generally comprise two parts:
  • an inner portion comprising a stack (or pack) of superposed plates defining between them two separate fluid flow conduits, and
  • an outer portion comprising a frame forming an enclosure for accommodating the plate pack, the frame comprising four side members and side walls attached to the side members and defining with the longitudinal members independent fluid distribution chambers.

Dans un tel échangeur, un fluide chaud et un fluide froid circulent respectivement dans les deux conduits formés entre les plaques, selon deux directions orthogonales.In such an exchanger, a hot fluid and a cold fluid circulate respectively in the two ducts formed between the plates in two orthogonal directions.

Le document FR2562997 décrit un échangeur de chaleur à plaques, dans lequel chaque plaque comprend un panneau principal présentant quatre côtés et quatre panneaux de jonction s'étendant à partir des côtés du panneau principal. Chaque plaque comprend en outre des ailettes verticales s'étendant à partir de chaque coin du panneau principal permettant de fixer la plaque sur les longerons.The document FR2562997 discloses a plate heat exchanger, wherein each plate comprises a main panel having four sides and four joining panels extending from the sides of the main panel. Each plate further comprises vertical fins extending from each corner of the main panel for securing the plate to the side members.

L'ensemble du paquet de plaque doit être raccordé sur les longerons, ce raccordement étant généralement réalisé par soudure des ailettes sur les longerons.The entire plate package must be connected to the side members, this connection being generally made by welding the fins on the side members.

Un inconvénient de l'échangeur thermique est que les ailettes sont fragiles et ont tendance à se déformer sous l'effet de la pression exercée par les fluides circulant dans les conduits sur les plaques.A disadvantage of the heat exchanger is that the fins are fragile and tend to deform under the effect of the pressure exerted by the fluids circulating in the ducts on the plates.

De ce fait, la liaison entre les ailettes verticales et les longerons est soumise à de fortes contraintes mécaniques dues en particulier aux dilatations thermiques que subissent les plaques. Ces contraintes peuvent générer des ruptures dans le cordon de soudure au niveau des quatre coins des plaques, pouvant mettre en péril l'étanchéité des conduits, voire même ouvrir une brèche entre les deux conduits.As a result, the connection between the vertical fins and the longitudinal members is subjected to high mechanical stresses due in particular to the thermal expansions experienced by the plates. These stresses can cause breaks in the weld bead at the four corners of the plates, which may jeopardize the tightness of the ducts, or even open a gap between the two ducts.

Le document FR2690986 décrit un échangeur à plaques soudées dans lequel chaque plaque présente des bossages en forme de cuvette à fond plat formés dans le panneau principal. Les bossages de deux plaques adjacentes viennent en appui les uns contre les autres pour améliorer la rigidité de l'empilement. De plus, l'empilement est soudé sur des gouttières recouvrant les longerons.The document FR2690986 discloses a welded plate heat exchanger in which each plate has flat-bottomed bowl shaped bosses formed in the main panel. The bosses of two adjacent plates bear against each other to improve the rigidity of the stack. In addition, the stack is welded to gutters covering the longitudinal members.

Toutefois, la présence de ces bossages a pour effet de diminuer la section d'écoulement des conduits de circulation de fluide et les bossages peuvent constituer des zones d'encrassement.However, the presence of these bosses has the effect of reducing the flow section of the fluid flow ducts and the bosses may be fouling zones.

Le document FR2939879 décrit un échangeur thermique dans lequel chaque plaque présente une arête venant s'emboîter dans des lumières réalisées sur des cornières d'angles. L'emboîtement des plaques dans les cornières d'angle permet de maintenir les plaques entre elles. Une fois emboîtés dans les cornières, les plaques sont soudées sur les cornières au moyen d'un cordon de soudure vertical s'étendant le long de la cornière d'angle.The document FR2939879 discloses a heat exchanger in which each plate has an edge fitting into slots made on corner angles. The interlocking of the plates in the corner angles makes it possible to hold the plates together. Once nested in the angles, the plates are welded to the angles by means of a vertical weld bead extending along the corner angle.

Un inconvénient de l'échangeur thermique proposé est que l'étanchéité entre les circuits de fluide et le maintien des plaques entre elles ne sont réalisés qu'une fois que les plaques sont définitivement soudées aux cornières d'angle.A disadvantage of the proposed heat exchanger is that the seal between the fluid circuits and the maintenance of the plates between them are only achieved once the plates are permanently welded to corner angles.

Il n'est donc pas possible de réaliser des tests d'étanchéité complets (test visuel ou de ressuage) du paquet de plaque sans un assemblage préalable du paquet avec les cornières d'angle.It is therefore not possible to perform complete sealing tests (visual test or bleeding) of the plate package without a prior assembly of the package with corner angles.

Le document US 2012/325445 A1 décrit par ailleurs un échangeur thermique comprenant un paquet de plaques rectangulaires pliées de façon à former deux conduits de fluides indépendants. Toutefois le paquet de plaque présente des zones de fragilité ponctuelles où peuvent survenir des fuites entre les deux conduits. Le paquet de plaques proposé dans ce document ne peut donc pas davantage faire l'objet de tests d'étanchéité complets sans assemblage du paquet avec d'autres éléments de l'échangeur.The document US 2012/325445 A1 further described a heat exchanger comprising a package of rectangular plates folded to form two independent fluid conduits. However, the plate pack has areas of point fragility where leaks can occur between the two ducts. The pack of plates proposed in this document can not therefore be subjected to complete leak tests without assembling the pack with other elements of the exchanger.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

Un des buts de l'invention est de proposer une plaque pour échangeur thermique qui permet la réalisation d'un paquet de plaques étanche et sans zones de rétention de fluide, sans qu'il soit nécessaire de souder le paquet de plaques sur les cornières d'angle, et de pouvoir assembler un paquet de plaques complet dans un échangeur thermique.One of the aims of the invention is to propose a plate for a heat exchanger which allows the production of a sealed pack of plates and without fluid retention zones, without it being necessary to weld the plate pack on the angle plates. angle, and to be able to assemble a complete pack of plates in a heat exchanger.

Ce but est atteint dans le cadre de la présente invention grâce à une plaque pour échangeur thermique, destinée à être disposée entre une première et une deuxième plaques adjacentes dans un empilement, la plaque comprenant:

  • un panneau principal présentant deux premiers côtés opposés de jonction, deux deuxièmes côtés opposés de jonction et quatre côtés de support,
  • deux premiers panneaux de jonction, chaque premier panneau de jonction s'étendant à partir d'un premier côté de jonction respectif et étant propre à être raccordé à un deuxième panneau de jonction de la première plaque adjacente pour définir un premier conduit de circulation de fluide,
  • deux deuxièmes panneaux de jonction, chaque deuxième panneau de jonction s'étendant à partir d'un deuxième côté et étant propre à être raccordé à un premier panneau de jonction de la deuxième plaque adjacente pour définir un deuxième conduit de circulation de fluide séparé du premier conduit de circulation de fluide, et
  • quatre panneaux de support, chaque panneau de support s'étendant à partir de l'un des côté de support du panneau principal et étant propre à être raccordé à un panneau de support de la première plaque adjacente pour maintenir les plaques entre elles dans l'empilement.
This object is achieved within the scope of the present invention by means of a plate for heat exchanger, intended to be arranged between a first and a second adjacent plates in a stack, the plate comprising:
  • a main panel having two opposite first joining sides, two opposing second joining sides and four supporting sides,
  • first two junction panels, each first junction panel extending from a respective first junction side and being adapted to be connected to a second junction panel of the adjacent first plate to define a first fluid flow conduit ,
  • two second joining panels, each second joining panel extending from a second side and being adapted to be connected to a first joining panel of the second plate adjacent to define a second fluid circulation duct separated from the first fluid circulation duct, and
  • four support panels, each support panel extending from one of the support sides of the main panel and being adapted to be connected to a support panel of the first adjacent plate to hold the plates together in the stack.

Grâce à la présence des quatre panneaux de support, il est possible d'obtenir une étanchéité entre les circuits indépendamment du raccordement des plaques aux cornières d'angle. De plus, l'empilement des plaques est auto-portant, c'est-à-dire que les plaques sont maintenues entre elles sans qu'il soit nécessaire de raccorder les plaques aux cornières d'angle.Thanks to the presence of the four support panels, it is possible to obtain a seal between the circuits independently of the connection of the plates to the corner angles. In addition, the stack of plates is self-supporting, that is to say that the plates are held together without it being necessary to connect the plates corner angle.

La plaque présente en outre les caractéristiques suivantes :

  • chaque côté de support du panneau principal s'étend entre un premier côté de jonction adjacent et un deuxième côté de jonction adjacent du panneau principal,
  • le panneau principal présente une forme octogonale,
  • le panneau principal comprend une première face et une deuxième face, opposée à la première face,
  • les premiers panneaux de jonction sont rabattus vers la première face du panneau principal,
  • les deuxièmes panneaux de jonction sont rabattus vers la deuxième face du panneau principal.
The plate furthermore has the following characteristics:
  • each support side of the main panel extends between a first adjacent junction side and a second adjacent junction side of the main panel,
  • the main panel has an octagonal shape,
  • the main panel comprises a first face and a second face, opposite to the first face,
  • the first joining panels are folded towards the first face of the main panel,
  • the second joining panels are folded towards the second face of the main panel.

La plaque peut en outre présenter les caractéristiques suivantes

  • chaque côté de support est rectiligne et orienté à 45° par rapport au premier côté de jonction adjacent et au deuxième côté de jonction adjacent,
  • chaque panneau de support s'étend à partir du panneau principal sur une hauteur égale à la somme d'une hauteur d'un premier panneau de jonction et d'une hauteur d'un deuxième panneau de jonction,
  • chaque panneau de support s'étend à partir du panneau principal, du côté de la première face,
  • chaque panneau de support s'étend perpendiculairement au panneau principal,
  • chaque panneau de support comprend une première portion s'étendant dans le prolongement d'un premier panneau de jonction, et une deuxième portion propre à se positionner dans le prolongement d'un deuxième panneau de jonction de la première plaque adjacente dans l'empilement,
  • la première portion et la deuxième portion de chaque panneau de support sont de hauteurs égales,
  • les premiers et deuxièmes panneaux de jonctions sont de hauteurs égales,
  • la plaque est de forme invariante par rotation de 90 degrés par rapport à un axe normal au panneau principal.
The plate may furthermore have the following characteristics
  • each support side is rectilinear and oriented at 45 ° with respect to the first adjacent junction side and the second adjacent junction side,
  • each support panel extends from the main panel a height equal to the sum of a height of a first joint panel and a height of a second joint panel,
  • each support panel extends from the main panel, on the side of the first face,
  • each support panel extends perpendicular to the main panel,
  • each support panel comprises a first portion extending in the extension of a first junction panel, and a second portion adapted to be positioned in the extension of a second joining panel of the first adjacent plate in the stack,
  • the first portion and the second portion of each support panel are of equal heights,
  • the first and second junction panels are of equal heights,
  • the plate is of invariant shape by rotation of 90 degrees with respect to an axis normal to the main panel.

L'invention concerne également un paquet de plaques pour échangeur thermique formé par empilement d'une pluralité de plaques telles que définies précédemment.The invention also relates to a heat exchanger plate pack formed by stacking a plurality of plates as defined above.

Dans un tel empilement, les premiers panneaux de jonction et les deuxièmes panneaux de jonction de l'une des plaques de l'empilement étant raccordés respectivement à des deuxièmes panneaux de jonction d'une première plaque adjacente dans l'empilement pour définir un premier conduit de circulation de fluide, et à des premiers panneaux de jonction d'une deuxième plaque adjacente dans l'empilement pour définir un deuxième conduit de circulation de fluide, séparé du premier conduit de circulation de fluide, et les panneaux de support de la plaque étant raccordés aux panneaux de support de la première plaque adjacente.In such a stack, the first junction panels and the second junction panels of one of the plates of the stack being respectively connected to second junction panels of a first adjacent plate in the stack to define a first conduit. fluid circulation, and first joining panels of a second adjacent plate in the stack to define a second fluid flow conduit, separated from the first fluid flow conduit, and the support panels of the plate being connected to the support panels of the first adjacent plate.

Le paquet peut en outre présenter les caractéristiques suivantes :

  • les panneaux de support sont raccordés entre eux par soudure,
  • les panneaux de support des plaques de l'empilement, raccordés entre eux, forment quatre montants, chaque montant présentant une face propre à venir en regard d'une face d'une cornière d'angle dans un échangeur thermique.
The package may further have the following characteristics:
  • the support panels are connected together by welding,
  • the support panels of the plates of the stack, connected together, form four uprights, each upright having a clean face to come opposite a face of a corner angle in a heat exchanger.

L'invention se rapporte également à un échangeur thermique, comprenant un paquet de plaques tel que défini précédemment.The invention also relates to a heat exchanger comprising a pack of plates as defined above.

L'échangeur thermique peut présenter les caractéristiques suivantes :

  • l'échangeur comprend quatre cornières d'angle disposées autour d'un logement dans lequel est reçu le paquet de plaques, chaque cornière comprenant une face en contact avec une face d'un montant du paquet de plaques formé par les panneaux de support des plaques du paquet,
  • la face de chaque cornière d'angle comprend deux bords longitudinaux le long desquels un cordon de soudure est appliqué pour fixer le montant du paquet à la cornière d'angle.
The heat exchanger can have the following characteristics:
  • the exchanger comprises four corner angles arranged around a housing in which is received the plate pack, each angle comprising a face in contact with a face of an amount of the pack of plates formed by the support panels of the plates of the pack,
  • the face of each corner angle includes two longitudinal edges along which a weld seam is applied to secure the package amount to the corner angle.

PRESENTATION DES DESSINSPRESENTATION OF THE DRAWINGS

D'autres caractéristiques et avantages ressortiront encore de la description qui suit, laquelle est purement illustrative et non limitative et doit être lue en regard des figures annexées, parmi lesquelles :

  • la figure 1 représente de manière schématique, en vue de dessous, une plaque pour échangeur thermique conforme à un premier mode de réalisation de l'invention,
  • la figure 2 représente de manière schématique, en perspective, la plaque conforme au premier mode de réalisation de l'invention,
  • la figure 3 représente de manière schématique, en perspective, un empilement de plaques conforme au premier mode de réalisation de l'invention,
  • la figure 4 représente de manière schématique, un détail d'une plaque selon le premier mode de réalisation de l'invention,
  • la figure 5 représente de manière schématique, en perspective, un paquet de plaques selon le premier mode de réalisation de l'invention,
  • la figure 6 représente de manière schématique, en vue de dessus, le paquet de plaques de la figure 5 muni de cornières d'anges,
  • la figure 7 représente de manière schématique, en vue de dessus, une armature d'échangeur thermique,
  • la figure 8 représente de manière schématique, en vue de dessus, le paquet de plaques de la figure 6 coopérant avec l'armature de la figure 7,
  • les figures 9 à 12 représentent des plaques conformes respectivement à un deuxième, troisième, quatrième et cinquième modes de réalisation de l'invention.
Other features and advantages will become apparent from the description which follows, which is purely illustrative and nonlimiting and should be read in conjunction with the appended figures, among which:
  • the figure 1 schematically shows, in bottom view, a plate for heat exchanger according to a first embodiment of the invention,
  • the figure 2 schematically shows, in perspective, the plate according to the first embodiment of the invention,
  • the figure 3 schematically shows, in perspective, a stack of plates according to the first embodiment of the invention,
  • the figure 4 schematically shows a detail of a plate according to the first embodiment of the invention,
  • the figure 5 schematically shows, in perspective, a pack of plates according to the first embodiment of the invention,
  • the figure 6 schematically, in top view, the plate pack of the figure 5 equipped with angles of angels,
  • the figure 7 schematically represents, in plan view, a heat exchanger armature,
  • the figure 8 schematically, in top view, the plate pack of the figure 6 cooperating with the frame of the figure 7 ,
  • the Figures 9 to 12 represent plates corresponding respectively to a second, third, fourth and fifth embodiments of the invention.

DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

En référence aux figures 1 et 2, la plaque 1 pour échangeur thermique représentée est formée en une seule pièce de matériau. La plaque 1 est formée par déformation d'une tôle plane en matériau soudable, telle que par exemple une tôle en acier. Cette déformation peut être obtenue par emboutissage et/ou pliage, dans une enceinte pressurisée ou non. En variante, la plaque 1 peut être réalisée par assemblage de plusieurs pièces indépendantes.With reference to Figures 1 and 2 , the plate 1 for heat exchanger shown is formed in a single piece of material. The plate 1 is formed by deformation of a flat sheet of weldable material, such as for example a steel sheet. This deformation can be obtained by stamping and / or folding, in a pressurized chamber or not. Alternatively, the plate 1 can be made by assembling several independent parts.

La plaque 1 comprend un panneau principal 10 présentant huit côtés, et huit panneaux latéraux 11a, 11b, 12a, 12b, 20a à 20d reliés par des lignes de pliure au panneau principal 10.The plate 1 comprises a main panel 10 having eight sides, and eight side panels 11a, 11b, 12a, 12b, 20a to 20d connected by fold lines to the main panel 10.

Plus précisément, le panneau principal 10 a une forme octogonale et présente quatre côtés de jonction 101 a, 101b, 102a, 102b, et quatre côtés de support 100a, 100b, 100c, 100d.More specifically, the main panel 10 has an octagonal shape and has four junction sides 101a, 101b, 102a, 102b, and four support sides 100a, 100b, 100c, 100d.

Le panneau principal 10 s'étend dans un plan principal parallèle au plan de la figure 3.The main panel 10 extends in a main plane parallel to the plane of the figure 3 .

Les quatre côtés de jonction 101 a, 101 b, 102a, 102b sont répartis en deux paires : une paire de premiers côtés de jonction opposés 101 a et 101 b, et une paire de deuxièmes côtés de jonction opposés 102a et 102b. Les premiers côtés de jonction 101 a et 101 b sont parallèles entre eux. De même, les deuxièmes côtés de jonction 102a et 102b sont parallèles entre eux. Par ailleurs, les premiers côtés de jonction 101a et 101b sont perpendiculaires aux premiers côtés de jonctions 101 a et 101 b.The four junction sides 101a, 101b, 102a, 102b are divided into two pairs: a pair of opposing first junction sides 101a and 101b, and a pair of opposite second junction sides 102a and 102b. The first junction sides 101a and 101b are parallel to each other. Similarly, the second junction sides 102a and 102b are parallel to each other. On the other hand, the first junction sides 101a and 101b are perpendicular to the first junction sides 101a and 101b.

Les quatre côtés de jonction 101 a, 101 b, 102a, 102b et les quatre côtés de support 100a, 100b, 100c, 100d délimitent ensemble une circonférence du panneau principal 10 comme on peut le voir sur la figure 1.The four junction sides 101a, 101b, 102a, 102b and the four support sides 100a, 100b, 100c, 100d together define a circumference of the main panel 10 as can be seen in FIG. figure 1 .

On considère dans le présent texte que deux côtés sont adjacents s'ils sont liés par une de leurs extrémités respectives. Chaque côté de support 100a-100d s'étend entre un premier côté de jonction 101 a, 101b adjacent et un deuxième côté de jonction 102a, 102b adjacent. En conséquence, chaque côté de jonction n'est pas adjacent à l'un quelconque des trois autres côtés de jonction puisqu'un côté de support, par définition de longueur non nulle, est intercalé entre les deux.It is considered in the present text that two sides are adjacent if they are bound by one of their respective ends. Each support side 100a-100d extends between a first adjacent junction side 101a, 101b and a second adjacent junction side 102a, 102b. Accordingly, each junction side is not adjacent to any of the other three junction sides since a support side, by definition of nonzero length, is interposed between the two.

Chaque côté de support 100a, 100b, 100c, 100d est rectiligne et orienté à 45° par rapport au premier côté de jonction adjacent et au deuxième côté de jonction adjacent. Ainsi, le côté de support 100a est orienté à 45° par rapport aux côtés de jonctions 101 b et 102a. Le côté de support 100b est orienté à 45° par rapport aux côtés de jonctions 101b et 102b. Le côté de support 100c est orienté à 45° par rapport aux côtés de jonctions 101a et 102b. Le côté de support 100d est orienté à 45° par rapport aux côtés de jonctions 101 a et 102a.Each support side 100a, 100b, 100c, 100d is rectilinear and 45 ° oriented with respect to the first adjacent junction side and the second adjacent junction side. Thus, the support side 100a is oriented at 45 ° with respect to the junction sides 101b and 102a. The support side 100b is oriented at 45 ° with respect to the junction sides 101b and 102b. The support side 100c is oriented at 45 ° with respect to the junction sides 101a and 102b. The support side 100d is oriented at 45 ° with respect to the junction sides 101a and 102a.

Le panneau principal 10 comprend une première face 103 (ou face inférieure) et une deuxième surface 104 (ou face supérieure) opposée à la première face 103.The main panel 10 comprises a first face 103 (or lower face) and a second surface 104 (or upper face) opposite the first face 103.

Les première et deuxième faces principales 103, 104 sont généralement planes et parallèles au plan principal. Les faces 103 et 104 comportent des reliefs 105. En l'occurrence, les reliefs 105 sont les rainures s'étendant selon une direction orientée à 45° par rapport aux côtés de jonction 101 a, 101b, 102a et 102b du panneau principal 10. Les reliefs 105 confèrent à la plaque 1 de la résistance mécanique et augmentent la surface d'échange entre les fluides.The first and second main faces 103, 104 are generally flat and parallel to the main plane. The faces 103 and 104 comprise reliefs 105. In this case, the reliefs 105 are the grooves extending in a direction oriented at 45 ° with respect to the junction sides 101a, 101b, 102a and 102b of the main panel 10. The reliefs 105 give the plate 1 the mechanical strength and increase the exchange surface between the fluids.

Par ailleurs, l'épaisseur du panneau principal 10 mesurée entre les première et deuxième faces 103 et 104 est faible par rapport aux dimensions des faces (sur la plaque 1 représentée en figure 4, l'épaisseur du panneau principal 10 est négligée pour plus de simplicité).Furthermore, the thickness of the main panel 10 measured between the first and second faces 103 and 104 is small compared to the dimensions of the faces (on the plate 1 shown in FIG. figure 4 the thickness of the main panel 10 is neglected for simplicity).

Les quatre panneaux de jonction 11a, 11b, 12a, 12b s'étendant chacun depuis un côté de jonction respectif 101 a, 101 b, 102a, 102b.The four junction panels 11a, 11b, 12a, 12b each extend from a respective junction side 101a, 101b, 102a, 102b.

Chaque panneau de jonction 11a, 11 b, 12a, 12b s'étend dans un plan non parallèle au plan principal. Plus précisément, chaque panneau de jonction 11a, 11b, 12a, 12b s'étend dans un plan perpendiculaire au plan principal.Each junction panel 11a, 11b, 12a, 12b extends in a plane not parallel to the main plane. More specifically, each junction panel 11a, 11b, 12a, 12b extends in a plane perpendicular to the main plane.

Chaque premier panneau de jonction 11a, 11 b s'étend à partir d'un premier côté de jonction 101 a, 101 b respectif. Chaque panneau de jonction 11 a, 11 b, est relié au panneau principal 10 par un pli s'étendant le long d'un côté de jonction respectif 101 a, 101 b. Les premiers panneaux de jonction 11 a et 11 b sont rabattus vers la première face 103 du panneau principal 10. Les premiers panneaux de jonction 11a et 11b forment ainsi avec le panneau principal 10 un premier demi-conduit de circulation de fluide.Each first junction panel 11a, 11b extends from a respective first junction side 101a, 101b. Each junction panel 11a, 11b is connected to the main panel 10 by a fold extending along a respective junction side 101a, 101b. The first junction panels 11a and 11b are folded towards the first face 103 of the main panel 10. The first junction panels 11a and 11b thus form with the main panel 10 a first half fluid flow duct.

De manière similaire, chaque deuxième panneau de jonction 12a, 12b s'étend à partir d'un deuxième côté de jonction 102a, 102b respectif. Chaque panneau de jonction 12a, 12b est relié au panneau principal 10 par un pli s'étendant le long d'un côté de jonction respectif 102a, 102b. Les deuxièmes panneaux de jonction 12a et 12b sont rabattus vers la deuxième face 104 du panneau principal 10. Les deuxièmes panneaux de jonction 12a et 12b forment ainsi avec le panneau principal 10 un deuxième conduit de circulation de fluide.Similarly, each second junction panel 12a, 12b extends from a respective second junction side 102a, 102b. Each junction panel 12a, 12b is connected to the main panel 10 by a fold extending along a respective junction side 102a, 102b. The second junction panels 12a and 12b are folded towards the second face 104 of the main panel 10. The second junction panels 12a and 12b thus form with the main panel 10 a second fluid flow conduit.

Les premier et deuxième demi conduits de circulation de fluide sont séparés l'un de l'autre par le panneau principal 10 de la plaque 1.The first and second half fluid circulation ducts are separated from each other by the main panel 10 of the plate 1.

La paire de premiers panneaux de jonctions 11 a, 11 b et la paire de deuxièmes panneaux de jonction 12a, 12b s'étendent de part et d'autre du plan principal.The pair of first junction panels 11a, 11b and the pair of second junction panels 12a, 12b extend on either side of the main plane.

Les quatre panneaux de jonctions 11a, 11b, 12a, 12b sont perpendiculaires sont tous de hauteur identique.The four junction panels 11a, 11b, 12a, 12b are perpendicular are all of identical height.

Chaque panneau de support 20a, 20b, 20c et 20d s'étend à partir d'un côté de support 100a, 100b, 100c et 100d. Contrairement aux panneaux de jonction 11a, 11b et 12a, 12b, tous les panneaux de supports 20 s'étendent d'un même côté du plan principal, à savoir du côté de la première surface 103.Each support panel 20a, 20b, 20c and 20d extends from a support side 100a, 100b, 100c and 100d. Unlike the joining panels 11a, 11b and 12a, 12b, all the support panels 20 extend on the same side of the main plane, namely on the side of the first surface 103.

En référence à la figure 3, la plaque 1 est propre à être d'une part raccordée à une première plaque adjacente 1a et d'autre part raccordée à une deuxième plaque adjacente 1b dans un empilement de plaques, les plaques 1a et 1b adjacentes étant identiques à la plaque 1 mais tournées de 90° par rapport à la plaque 1 autour d'un axe perpendiculaire au plan principal.With reference to the figure 3 , the plate 1 is adapted to be firstly connected to a first adjacent plate 1a and secondly connected to a second adjacent plate 1b in a stack of plates, the adjacent plates 1a and 1b being identical to the plate 1 but turned 90 ° relative to the plate 1 about an axis perpendicular to the main plane.

Dans cette configuration, chaque premier panneau de jonction 11a, 11 b de la plaque 1 est propre à être raccordé à un deuxième panneau de jonction 12a, 12b respectif de la première plaque adjacente, définissant ainsi un premier conduit de circulation d'un premier fluide selon une direction X.In this configuration, each first junction panel 11a, 11b of the plate 1 is adapted to be connected to a respective second junction panel 12a, 12b of the first adjacent plate, thereby defining a first flow conduit of a first fluid in a direction X.

De même, chaque deuxième panneau 12a, 12b de jonction de la plaque 1 est propre à être raccordé à premier panneau de jonction 11a, 11 b de la deuxième plaque adjacente 1 b, définissant ainsi un deuxième conduit de circulation d'un deuxième fluide selon une direction Y, perpendiculaire à la direction X.Similarly, each second panel 12a, 12b of the junction of the plate 1 is adapted to be connected to the first junction panel 11a, 11b of the second adjacent plate 1b, thus defining a second circulation duct of a second fluid according to a Y direction, perpendicular to the X direction.

Par ailleurs, chaque panneau de support 20 de la plaque 1 est propre à être raccordé à un panneau de support de la première plaque adjacente 1a.Furthermore, each support panel 20 of the plate 1 is adapted to be connected to a support panel of the first adjacent plate 1a.

De même, chaque panneau de support 20 de la deuxième plaque adjacente 1 b est propre à être raccordé à un panneau de support de la plaque 1.Similarly, each support panel 20 of the second adjacent plate 1b is adapted to be connected to a support panel of the plate 1.

Comme cela est illustré en figure 4, le côté de support 100 du panneau principal 10 s'étend entre un premier côté de jonction adjacent 101 et un deuxième côté de jonction adjacent 102 de la plaque 1. Le panneau de support 20 est situé entre un premier panneau de jonction adjacent 11 et un deuxième panneau de jonction adjacent 12. Cette configuration présente l'avantage que le panneau de support entrave peu l'écoulement d'un fluide circulant dans le premier conduit.As illustrated in figure 4 the support side 100 of the main panel 10 extends between a first adjacent junction side 101 and a second adjacent junction side 102 of the plate 1. The support panel 20 is located between a first adjacent junction panel 11 and a second adjacent junction panel 12. This configuration has the advantage that the support panel does not hinder the flow of a fluid flowing in the first conduit.

Le premier panneau de jonction 11 s'étend du côté de la première face 103 sur une première hauteur H1, et le deuxième panneau de jonction 12 s'étend en direction opposée, du côté de la deuxième surface 104 sur une deuxième hauteur H2.The first joint panel 11 extends on the side of the first face 103 on a first height H1, and the second joint panel 12 extends in the opposite direction, on the side of the second surface 104 on a second height H2.

Le panneau de support 20 comprend un bord libre 230 propre à être raccordée à un panneau de support d'une première plaque adjacente (non représentée sur la figure 4).The support panel 20 includes a free edge 230 adapted to be connected to a support panel of a first adjacent plate (not shown in FIG. figure 4 ).

Par ailleurs, le panneau de support 20 s'étend du côté de la première face 103 sur une hauteur de support égale à la somme H1+H2 des hauteurs respectives des premier 11 et deuxième 12 panneaux de jonctions.Furthermore, the support panel 20 extends on the side of the first face 103 over a support height equal to the sum H1 + H2 of the respective heights of the first 11 and second 12 junction panels.

Ce dimensionnement permet d'emboîter la plaque 1 avec la première plaque adjacente 1a illustrée en figure 3.This dimensioning makes it possible to fit the plate 1 with the first adjacent plate 1a illustrated in FIG. figure 3 .

En effet, lorsque la plaque 1 est empilée sur la première plaque adjacente 1a, chaque bord libre du panneau de support 20a à 20d de la plaque 1 vient se raccorder avec un panneau de support de la plaque 1a. De plus, chaque premier panneau de jonction 11 a, 11 b de la plaque 1 vient se raccorder bord à bord avec un deuxième panneau de jonction de la plaque 1a.Indeed, when the plate 1 is stacked on the first adjacent plate 1a, each free edge of the support panel 20a to 20d of the plate 1 is connected with a plate support panel 1a. In addition, each first junction panel 11a, 11b of the plate 1 is connected edge to edge with a second panel junction of the plate 1a.

De plus, lorsque la deuxième plaque adjacente 1 b est empilée sur la plaque 1, chaque bord libre du panneau de support de la plaque 1 b vient se raccorder avec un panneau de support 20a à 20d de la plaque 1a au niveau d'un bord de support 100a à 100d. De plus, chaque premier panneau de jonction de la plaque 1 b vient se raccorder bord à bord avec un deuxième panneau de jonction 12a, 12b de la plaque 1.In addition, when the second adjacent plate 1b is stacked on the plate 1, each free edge of the support panel of the plate 1b is connected with a support panel 20a to 20d of the plate 1a at an edge support 100a to 100d. In addition, each first junction panel of the plate 1b is connected edge to edge with a second junction panel 12a, 12b of the plate 1.

Le panneau de support 20 comprend une portion primaire 21 s'étendant depuis la première surface 103, cette portion primaire prolonge le premier panneau de jonction adjacent 11 sans raccordement ce qui permet notamment d'assurer l'étanchéité du premier conduit formé entre les plaques 1 et 1a, et d'améliorer la rigidité de la plaque 1.The support panel 20 comprises a primary portion 21 extending from the first surface 103, this primary portion extends the first adjacent connecting panel 11 without connection, which makes it possible in particular to seal the first conduit formed between the plates 1 and 1a, and to improve the rigidity of the plate 1.

Dans le premier mode de réalisation illustré en figure 4, le panneau de support 20 comprend en outre une première portion 21 de hauteur H1 et une deuxième portion 23 (ou portion terminale) de hauteur H2 s'étendant dans le prolongement de la première portion 21, la deuxième portion 23 présentant un bord libre 230 propre à venir en appui sur le bord 100 du panneau principal 10.In the first embodiment illustrated in figure 4 , the support panel 20 further comprises a first portion 21 of height H1 and a second portion 23 (or end portion) of height H2 extending in the extension of the first portion 21, the second portion 23 having a free edge 230 clean to bear on the edge 100 of the main panel 10.

La première portion 21 du panneau de support 20 s'étend dans le prolongement du premier panneau de jonction 11, et la deuxième portion 23 est propre à se positionner dans le prolongement d'un deuxième panneau de jonction de la première plaque adjacente 1a dans l'empilement.The first portion 21 of the support panel 20 extends in the extension of the first joint panel 11, and the second portion 23 is adapted to be positioned in the extension of a second joint panel of the first adjacent plate 1a in the stacking.

Le panneau de support 20 s'étend à partir de la première surface 103 sur une hauteur de support cumulée comprenant la hauteur H1 de la portion primaire 21 et la hauteur H2 de la partie terminale.The support panel 20 extends from the first surface 103 over a cumulative support height including the height H1 of the primary portion 21 and the height H2 of the end portion.

Dans le premier mode de réalisation illustré sur les figures 1 à 4, les deux premiers panneaux de jonction 11 a, 11 b sont de même hauteur H1 selon une direction normale au plan principal, et les deux deuxièmes panneaux 12a, 12b de jonction sont de même hauteur H2 selon cette même direction.In the first embodiment illustrated on the Figures 1 to 4 , the first two junction panels 11a, 11b are of the same height H1 in a direction normal to the main plane, and the two second junction panels 12a, 12b are of the same height H2 in this same direction.

En référence à la figure 5, une pluralité de plaques identiques, conformes au premier mode de réalisation, sont empilées pour former un paquet de plaques 4. Sur la figure 5, seules trois plaques 1, 1a, 1 b ont été représentées.With reference to the figure 5 , a plurality of identical plates, according to the first embodiment, are stacked to form a pack of plates 4. On the figure 5 only three plates 1, 1a, 1b have been shown.

Les panneaux principaux 10 des plaques 1 du paquet 4 sont parallèles entre eux.The main panels 10 of the plates 1 of the pack 4 are parallel to each other.

Chaque premier panneau de jonction 11 de la plaque 1 est raccordé à un deuxième panneau de jonction 12 de la première plaque adjacente 1a, définissant ainsi un premier conduit C1 de circulation d'un premier fluide F1 selon la direction X.Each first junction panel 11 of the plate 1 is connected to a second junction panel 12 of the first adjacent plate 1a, thereby defining a first conduit C1 for circulating a first fluid F1 in the direction X.

De même, chaque deuxième panneau de jonction 12 de la plaque 1 de référence est raccordé à un premier panneau de jonction 11 de la deuxième plaque adjacente, définissant ainsi un deuxième conduit C2 de circulation d'un premier fluide F2 selon la direction Y.Similarly, each second junction panel 12 of the reference plate 1 is connected to a first junction panel 11 of the second adjacent plate, thereby defining a second conduit C2 for circulating a first fluid F2 in the direction Y.

Chaque bord libre 230 de la plaque 1 de référence vient reposer sur la première plaque adjacente 1a. Chaque bord transversal libre 232 d'une portion terminale 23 respective de la plaque 1 est raccordé à un bord transversal libre 122 d'un deuxième panneau de support 12 de la première plaque adjacente 1a.Each free edge 230 of the reference plate 1 comes to rest on the first adjacent plate 1a. Each free transverse edge 232 of a respective end portion 23 of the plate 1 is connected to a free transverse edge 122 of a second support panel 12 of the first adjacent plate 1a.

Le raccordement de la deuxième plaque adjacente 1 b à la plaque 1 de référence est réalisé de la même manière, de même que le raccordement de plaques supplémentaires.The connection of the second adjacent plate 1b to the reference plate 1 is made in the same way, as is the connection of additional plates.

Les plaques 1, 1a et 1b du paquet de plaques 4 sont raccordées entre elles par un cordon de soudure 423 de sorte à constituer un paquet 4 de plaques d'un seul tenant.The plates 1, 1a and 1b of the pack of plates 4 are connected together by a weld bead 423 so as to constitute a pack 4 of plates in one piece.

Chaque premier panneau de jonction 11 a, 11 b d'une plaque est soudé bord à bord avec un deuxième panneau 12a, 12b de jonction d'une plaque adjacente dans l'empilement.Each first joining panel 11a, 11b of a plate is welded edge to edge with a second panel 12a, 12b joining an adjacent plate in the stack.

Par ailleurs, chaque bord transversal 232 de la portion terminale 23 d'un panneau de support 20 est soudé d'une part à un bord transversal 122 d'un deuxième panneau de jonction 12 et d'autre part à un bord de support du panneau principal 10 d'une autre plaque.Furthermore, each transverse edge 232 of the end portion 23 of a support panel 20 is welded on the one hand to a transverse edge 122 of a second joint panel 12 and on the other hand to a support edge of the panel main 10 of another plate.

Le soudage est réalisé suivant les règles de l'art en bout à bout ce qui diffère d'un soudage bord à bord, sur chant ou par recouvrement. Le type de soudage choisi, intimement lié à la géométrie de la plaque, permet d'éviter la création de zones de confinements à l'intérieur des conduits susceptibles de s'encrasser, et à terme de fragiliser la soudure effectuée.The welding is done according to the rules of the art end-to-end which differs from an edge-to-edge, edge-to-edge or overlap welding. The type of welding chosen, closely related to the geometry of the plate, avoids the creation of confinement zones inside the ducts may become clogged, and ultimately weaken the weld performed.

Dans le paquet de plaques 4 ainsi formé, les échanges thermiques entre les premier et deuxième fluides F1, F2 sont réalisés au travers les panneaux principaux 10 respectifs des plaques 1, 1a et 1 b.In the plate pack 4 thus formed, the heat exchanges between the first and second fluids F1, F2 are carried out through the respective main panels 10 of the plates 1, 1a and 1b.

Dans un tel empilement, l'ensemble des panneaux de supports superposés du paquet 4 de plaques forment quatre montants 42 aux quatre coins de l'empilement.In such a stack, the set of superimposed support panels of the pack 4 of plates form four uprights 42 at the four corners of the stack.

Les dimensions de chaque montant 42 sont augmentées à chaque fois qu'une nouvelle plaque est ajoutée au paquet 4.The dimensions of each upright 42 are increased each time a new plate is added to the package 4.

Les quatre montants 42 obtenus assurent une fonction de soutien du paquet 4 de plaque. Le poids des plaques est efficacement réparti sur les quatre montants sans risquer de tordre les panneaux de jonction 20 et ainsi d'ouvrir des brèches dans les conduits C1 et C2.The four posts 42 obtained provide a support function of the plate pack 4. The weight of the plates is effectively distributed over the four uprights without the risk of twisting the joining panels 20 and thus opening gaps in the conduits C1 and C2.

Chaque montant 42 comprend une surface externe 420 définie par l'ensemble des panneaux de support, chaque panneau de support de cet ensemble appartenant à une plaque spécifique du paquet 4 de plaques. En conséquence, chaque montant sépare le premier conduit C1 du conduit C2 par cette surface externe 420 sur toute sa hauteur. Cette surface, non réduire à un point, permet d'éviter des fuites de fluides entre les conduits C1 et C2.Each upright 42 includes an outer surface 420 defined by the set of support panels, each support panel of this set belonging to a specific plate of the pack 4 of plates. Consequently, each amount separates the first conduit C1 from the conduit C2 by this external surface 420 over its entire height. This surface, not reduce to a point, avoids leakage of fluids between the conduits C1 and C2.

Chaque surface externe 420 du paquet 4 de plaques est une surface plane orientée à 45° par rapport aux panneaux de jonctions des plaques.Each outer surface 420 of the pack 4 of plates is a flat surface oriented at 45 ° with respect to the junction panels of the plates.

Chaque surface externe 420 comporte deux bords longitudinaux 422a, 422b : un premier bord longitudinal 422a donnant sur le premier conduit C1 du paquet 4, et un deuxième bord longitudinal 422b donnant sur le deuxième conduit C2 du paquet 4.Each outer surface 420 has two longitudinal edges 422a, 422b: a first longitudinal edge 422a giving on the first conduit C1 of the package 4, and a second longitudinal edge 422b giving on the second conduit C2 of the package 4.

En référence aux figures 6 à 8, l'échangeur thermique 6 représenté comprend une armature 60 comprenant quatre longerons 61a-61d définissant un logement 64 prévu pour recevoir le paquet 4.With reference to Figures 6 to 8 , the heat exchanger 6 shown comprises an armature 60 comprising four spars 61a-61d defining a housing 64 provided for receiving the package 4.

L'armature 60 comprend également quatre cornières d'angle 62a-62d, chaque cornière comprenant une surface interne 620a-620d sensiblement planes.The armature 60 also includes four angle brackets 62a-62d, each bracket having a substantially plane inner surface 620a-620d.

Une fois les plaques du paquet 4 assemblées, chaque surface externe 420 d'un montant est positionnée en contact avec la surface interne 620 d'une cornière d'angle 62.Once the plates of the pack 4 are assembled, each outer surface 420 of a post is positioned in contact with the inner surface 620 of an angle bracket 62.

La surface interne 620 de chaque cornière 62 comporte deux bords longitudinaux 622a, 622b. Chaque bord longitudinal de surface interne 622a, 622b coïncide avec un bord longitudinal 422a, 422b respectif d'un montant 42, une fois le paquet de plaques 4 logé dans le logement 64.The inner surface 620 of each bracket 62 has two longitudinal edges 622a, 622b. Each inner surface longitudinal edge 622a, 622b coincides with a respective longitudinal edge 422a, 422b of a post 42, once the plate pack 4 is housed in the housing 64.

Un cordon de soudure peut être alors est appliqué en chaque bord longitudinal 622a, 622b pour prévenir tout mouvement relatif du paquet 4 de plaques par rapport à l'armature.A weld bead can then be applied at each longitudinal edge 622a, 622b to prevent relative movement of the pack 4 of plates relative to the frame.

Chaque cornière 62a-62d comprend en outre une surface externe 621a-621d. Dans le mode de réalisation représenté en figure 7, chaque surface externe 621 comporte une face centrale et deux surface latérale orientées de 45° par rapport à la face centrale.Each bracket 62a-62d further comprises an outer surface 621a-621d. In the embodiment shown in figure 7 each outer surface 621 has a central face and two lateral surfaces oriented 45 ° with respect to the central face.

L'ensemble formé par le paquet de plaques 4 et les quatre cornières 64a-64d est ensuite logé dans le logement 64 entre les quatre longerons 61a-61d. Chaque longeron 61 comprend une face interne reposant contre la surface externe 621 d'un cornière 62. Les longerons 61 a-61d maintiennent ainsi en place le paquet de plaques 4 logé dans le logement 64.The assembly formed by the pack of plates 4 and the four brackets 64a-64d is then housed in the housing 64 between the four longitudinal members 61a-61d. Each spar 61 comprises an inner face resting against the outer surface 621 of an angle bracket 62. The spars 61a-61d thus hold the plate pack 4 housed in the housing 64 in place.

AUTRES MODES DE REALISATIONOTHER EMBODIMENTS

Dans un deuxième mode de réalisation illustré sur la figure 9, le panneau de support 20 comprend une portion secondaire 22 s'étendant depuis la deuxième surface 104 du panneau principal 10, ladite portion secondaire 22 prolongeant le deuxième panneau de jonction adjacent 12.In a second embodiment illustrated on the figure 9 , the support panel 20 comprises a secondary portion 22 extending from the second surface 104 of the main panel 10, said secondary portion 22 extending the second adjacent junction panel 12.

La portion secondaire 22 et le deuxième panneau de jonction adjacent 12 sont de hauteurs identiques égales à H2.The secondary portion 22 and the second adjacent junction panel 12 have identical heights equal to H2.

En d'autres termes, le panneau de support 20 s'étend de part et d'autre du panneau principal 10. La hauteur de support comprend la hauteur H1 de la portion primaire 21 s'étendant depuis la première surface 103, et la hauteur H2 de la partie secondaire 22 s'étendant depuis la deuxième surface 104.In other words, the support panel 20 extends on either side of the main panel 10. The support height comprises the height H1 of the primary portion 21 extending from the first surface 103, and the height H2 of the secondary portion 22 extending from the second surface 104.

Ce mode de réalisation réduit la hauteur totale de la plaque 1 à une valeur minimale (égale à H1+H2), et par conséquent son encombrement. Une telle plaque consommera donc avantageusement un espace de stockage réduit.This embodiment reduces the total height of the plate 1 to a minimum value (equal to H1 + H2), and therefore its size. Such a plate will therefore advantageously consume a reduced storage space.

La plaque selon ce mode de réalisation peut être symétrique par rapport à au plan principal.The plate according to this embodiment may be symmetrical with respect to the main plane.

Dans un troisième mode de réalisation illustré en figure 10, le panneau de support 20 comprend une portion secondaire 22 s'étendant depuis la deuxième surface 104 du panneau principal 10 et solidaire du deuxième panneau de jonction adjacent, et une portion terminale 23 connectée à la portion primaire et se terminant par l'extrémité libre 230.In a third embodiment illustrated in figure 10 , the support panel 20 comprises a secondary portion 22 extending from the second surface 104 of the main panel 10 and integral with the second adjacent junction panel, and an end portion 23 connected to the primary portion and ending with the free end 230.

La somme des hauteurs respectives des portions secondaire 22 et terminale 23 du panneau de support 20 est égale à la hauteur H2 du deuxième panneau de jonction adjacent 12.The sum of the respective heights of the secondary and end portions 22 of the support panel 20 is equal to the height H2 of the second adjacent junction panel 12.

Le deuxième panneau de jonction adjacent 12 comprend un bord libre 122 s'étendant sur une hauteur égale à la hauteur de la partie terminale 23.The second adjacent junction panel 12 comprises a free edge 122 extending over a height equal to the height of the end portion 23.

Par exemple, les hauteurs respectives des panneaux de jonction 11 et 12 peuvent être identiques et égales à une valeur H, et les hauteurs respectives des portions secondaires 22 et terminales 23 peuvent être égales à la moitié H/2 de la hauteur commune des panneaux de jonction adjacents 11 et 12. Le bord transversal libre 122 du deuxième panneau de jonction est alors de hauteur égale à H/2.For example, the respective heights of the joining panels 11 and 12 may be identical and equal to a value H, and the respective heights of the secondary and terminal portions 22 and 22 may be equal to the half H / 2 of the common height of the panels. adjacent junction 11 and 12. The free transverse edge 122 of the second junction panel is then of height equal to H / 2.

Cette configuration permet d'une part de diminuer l'encombrement de la plaque selon sa hauteur, et d'autre part de prévenir une mobilité relative de la plaque par rapport à une plaque adjacente dans un plan parallèle à leurs panneaux principaux respectifs.This configuration allows on the one hand to reduce the size of the plate according to its height, and on the other hand to prevent mobility relative of the plate relative to an adjacent plate in a plane parallel to their respective main panels.

Dans un quatrième mode de réalisation illustré sur la figure 11, le panneau principal 10 est de forme globalement ovoïde et les côtés de jonctions 101, 102 et de support 100 sont courbes.In a fourth embodiment illustrated on the figure 11 , the main panel 10 is of generally ovoid shape and the junction sides 101, 102 and support 100 are curved.

Par conséquent, les montants 42 formés sur un paquet 4 de plaques conformes à ce mode de réalisation présentent des surfaces externes respectives 420 non planes.Therefore, the uprights 42 formed on a pack 4 of plates according to this embodiment have respective non-planar external surfaces 420.

Dans un cinquième mode de réalisation illustré en figure 12, chaque côté de support 20 et un deuxième côté de jonction adjacent sont de direction commune.In a fifth embodiment illustrated in figure 12 each support side 20 and a second adjacent junction side are of common direction.

Ceci permet à un paquet de plaques d'être d'enveloppe parallélépipédique.This allows a pack of plates to be of parallelepipedal envelope.

Dans chacun des modes de réalisations qui viennent d'être décrits, chaque panneau de support peut être de forme cylindrique.In each of the embodiments that have just been described, each support panel may be of cylindrical shape.

Les hauteurs respectives des premier et deuxième panneaux de jonctions peuvent être identiques égales à une valeur H.The respective heights of the first and second junction panels may be identical equal to an H.

Plus généralement, chaque plaque 1, 1a, 1 b est de forme invariante en rotation de 90° selon un axe perpendiculaire au plan du panneau principal 10. Cette caractéristique facilite encore le processus de construction d'un paquet 4 de plaques ; en effet, pour être correctement raccordée à une plaque supérieure du paquet 4, ladite plaque n'aura à subir qu'une rotation inférieure ou égale à 90° par rapport à un axe d'empilement.More generally, each plate 1, 1a, 1b is invariant in rotation shape 90 ° along an axis perpendicular to the plane of the main panel 10. This feature further facilitates the process of construction of a pack 4 plates; indeed, to be properly connected to an upper plate of the packet 4, said plate will have to undergo a rotation less than or equal to 90 ° with respect to a stack axis.

Les premier et deuxième côtés de jonction peuvent être de longueurs identiques pour équilibrer les temps de traversée de fluides dans les premier et deuxième conduits.The first and second joining sides may be of identical lengths to balance the fluid flow times in the first and second conduits.

Claims (14)

  1. Plate (1) for a heat exchanger, intended to be positioned between a first (1a) and a second (1b) adjacent plate in a stack, the plate (1) comprising:
    - an octagonal main panel (10) having two first opposite junction sides (101a, 101b), two second opposite junction sides (102a, 102b) and four support sides (100a-100d), the main panel (10) comprising a first face (103) and a second face (104), opposite to the first face,
    - eight panels (11a, 11b, 12a, 12b, 20a-20d) connected by folding lines to the main panel (10), including:
    -- two first junction panels (11a, 11b), each first junction panel extending from a first respective junction side (101a, 101b) and being suitable for being connected to a second junction panel (12a, 12b) of the first adjacent plate (1a) in order to define a first duct (C1) for circulation of fluid,
    -- two second junction panels (12a, 12b), each second junction panel extending from a second side (102a, 102b) and being suitable for being connected to a first junction panel (11a, 11b) of the second adjacent plate (1b) in order to define a second duct (C2) for circulation of fluid distinct from the first duct (C1) for circulation of fluid, and
    -- four support panels (20a-20d), each support panel extending from one of the support sides (100a-100d) and being suitable for being connected to a support panel (20a-20d) of the first adjacent plate (1a) in order to maintain the plates with respect to each other in stack,
    wherein each support side (100a-100d) of the main panel (10) extends between a first adjacent junction side (101a, 101b) and a second adjacent junction side (102a, 102b) of the main panel,
    and wherein the first junction panels (11a, 11b) are folded towards the first face (103) of the main panel (10) and the second junction panels (12a, 12b) are folded towards the second face (104) of the main panel (10).
  2. Plate according to claim 1, wherein each support side (100a-100d) is rectilinear and oriented at 45° with respect to the first adjacent junction side (101a, 101b) and to the second adjacent junction side (102a, 102b).
  3. Plate (1) according to one of claims 1 to 2, wherein each support panel (20) extends from the main panel (10) over a height equal to the sum of a height (H1) of a first junction panel (11a, 11b) and a height (H2) of a second junction panel (12a, 12b).
  4. Plate according to one of claims 1 to 3, wherein each support panel (20) extends from the main panel on the first-face (103) side.
  5. Plate according to one of claims 1 to 4, wherein each support panel extends perpendicularly to the main panel.
  6. Plate (1) according to one of claims 1 to 5, wherein each support panel (20a-20d) comprises a first portion (21) extending in the extension of a first junction panel (11a, 11b) and a second portion (23) suitable for being positioned in the extension of a second junction panel (12a, 12b) of the first adjacent plate (1a) in the stack.
  7. Plate (1) according to claim 6, wherein the first portion (21) and the second portion (23) of each support panel (20a-20d) have equal heights.
  8. Plate according to one of claims 1 to 7, wherein the first and second junction panels (11a, 11b, 12a, 12b) have equal heights.
  9. Plate (1) according to one of claims 1 to 8, the plate having an envelope that is invariable via rotation by 90 degrees with respect to an axis normal to the main panel (10).
  10. Set (4) of plates for a heat exchanger, formed by the stacking of a plurality of plates (1, 1a, 1b) according to one of claims 1 to 9 the first junction panels (11a, 11b) and the second junction panels (12a, 12b) of one of the plates of the stack being connected, respectively, to second junction panels (12a, 12b) of a first adjacent plate (1a) in the stack in order to define a first duct (C1) for circulation of fluid and to first junction panels (11a, 11b) of a second adjacent plate (1b) in the stack in order to define a second duct (C2) for circulation of fluid distinct from the first duct (C1) for circulation of fluid, and the support panels (20a-20d) of the plate being connected to the support panels (20a-20d) of the first adjacent plate (1a) .
  11. Set (4) according to claim 10, wherein the support panels are connected together via welding.
  12. Set (4) according to one of claims 10 and 11, wherein the support panels (20a-20d) of the plates of the stack, connected together, form four uprights (42), each upright (42) having a face (420a-420d) suitable for facing a face of a corner bead in a heat exchanger.
  13. Set (4) according to one of claims 10 to 12 further comprising four angle beads (62a-62d), each angle bead comprising a face (620a-620d) in contact with a face (420a-420d) of an upright (42) of the set (4) of plates formed by the support panels (20a-20d) of the plates of the set, the face (620a-620d) comprising two longitudinal edges (622a-622b), and two welding beads, each applied along a respective longitudinal edge in order to attach the upright (42) of the set to the corresponding angle bead (62a-62d).
  14. Heat exchanger (6) comprising a set (4) of plates according to claim 13 and four beams (61a-61d) positioned around a housing (64) wherein the set (4) of plates is received, each beam (61a-61d) comprising at least one face (621) in contact with at least one face (621) of an angle bead (62a-62d).
EP14160996.6A 2013-03-21 2014-03-21 Plate for heat exchanger and heat exchanger including such a plate Active EP2781870B1 (en)

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FR1352547A FR3003637B1 (en) 2013-03-21 2013-03-21 PLATE FOR THERMAL EXCHANGER AND THERMAL EXCHANGER INCORPORATING SUCH PLATE

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DE102014219056A1 (en) * 2014-09-22 2016-05-04 Mahle International Gmbh Heat exchanger
FR3034855B1 (en) * 2015-04-13 2018-05-18 Nexson Group THERMAL EXCHANGER AND ASSOCIATED HEAT EXCHANGER ASSEMBLY
FR3086742B1 (en) * 2018-10-01 2020-10-30 Heurtey Petrochem S A PLATE FOR A PLATE HEAT EXCHANGER
FR3128520B1 (en) 2021-10-25 2024-01-19 Axens Pair of heat exchanger plates with grooves and recesses

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JP2003130571A (en) * 2001-10-26 2003-05-08 Mitsubishi Electric Corp Stacked heat exchanger

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FR1272343A (en) * 1960-10-27 1961-09-22 Gkn Group Services Ltd Improvements to heat exchangers
FR2562997B1 (en) * 1984-04-19 1988-09-23 Vicarb Sa PLATE HEAT EXCHANGERS AND NEW TYPE OF PLATES FOR PROVIDING SUCH EXCHANGERS
FR2690986B1 (en) 1992-05-05 1998-06-12 Fernandez Jean Noel EXCHANGERS WITH WELDED PLATES WITH PRESSURE SELF - RESISTANT CIRCUIT AND NEW PLATES ALLOWING THE PRODUCTION OF SUCH EXCHANGERS.
US5681538A (en) * 1995-02-01 1997-10-28 Engelhard Corporation Metallic monolith and plates for the assembly thereof
SE521382C2 (en) * 1998-09-01 2003-10-28 Compact Plate Ab Cross current type heat exchanger
FR2939879B1 (en) * 2008-12-15 2011-03-04 Vitherm THERMAL EXCHANGER WITH WELDED PLATES
NL2003983C2 (en) * 2009-12-18 2011-06-21 Mircea Dinulescu Plate type heat exchanger and method of manufacturing heat exchanger plate.
NL2004565C2 (en) * 2010-04-16 2011-10-18 Mircea Dinulescu Plate type heat exchanger having outer heat exchanger plates with improved connections to end panels.

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JP2003130571A (en) * 2001-10-26 2003-05-08 Mitsubishi Electric Corp Stacked heat exchanger

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FR3003637A1 (en) 2014-09-26
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