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EP1426722A1 - Plate for heat exchanger and plate heat exchanger - Google Patents

Plate for heat exchanger and plate heat exchanger Download PDF

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Publication number
EP1426722A1
EP1426722A1 EP03292594A EP03292594A EP1426722A1 EP 1426722 A1 EP1426722 A1 EP 1426722A1 EP 03292594 A EP03292594 A EP 03292594A EP 03292594 A EP03292594 A EP 03292594A EP 1426722 A1 EP1426722 A1 EP 1426722A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate
corrugations
plates
zones
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
EP03292594A
Other languages
German (de)
French (fr)
Other versions
EP1426722B1 (en
Inventor
Dominique Sabin
Alain Bourgeon
Pierre-Xavier Bussonnet
Eric Gilbert-Desvallons
Gilbert Graille
Pierre Tanca
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 Packinox SAS
Original Assignee
Packinox SA
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 Packinox SA filed Critical Packinox SA
Publication of EP1426722A1 publication Critical patent/EP1426722A1/en
Application granted granted Critical
Publication of EP1426722B1 publication Critical patent/EP1426722B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the invention relates to a plate of a heat exchanger and a Plate heat exchanger consisting of plates according to the invention.
  • Heat exchangers are known used for example in the petroleum refining or petrochemicals, which are carried out under the form of plate heat exchangers and which can ensure a heat exchange with a very good efficiency, between a hot fluid and a cold fluid, the cold fluid being able to undergo, for example, an increase in temperature of the order of 300 ° C to 400 ° C.
  • the plate heat exchangers have the following advantage of having a very good heat exchange coefficient.
  • Such heat exchangers generally comprise one or several bundles of plates each formed by a stack of plates superimposed in parallel arrangements to each other and delimiting between them a double circulation circuit of two fluids totally separated.
  • Each of the elementary plates of a beam of the exchanger thermal plate consists of a thin metal sheet, for example stainless steel, shaped to include ripples of particular shape in a central area of the plate through which the heat transfers between the fluids are made.
  • the corrugations of the plates of the heat exchange bundle are disposed adjacent to each other so as to cover the entire surface of the central area of the heat exchanger plate thermal.
  • the undulations can be directed in a longitudinal direction plate which constitutes a general circulation direction of fluids between which a heat exchange is performed.
  • the fluids can for example flow against the current, that is to say in parallel directions and opposite directions, on both sides of heat exchange bundle plates stacked one above the other.
  • each longitudinal axis of the plate between an inlet end portion and a outlet end portion of the plate have substantially rectilinear, successive in the longitudinal direction and oblique by relative to this direction of the plate.
  • the successive and oblique sections have an inclination with respect to the longitudinal axis of the plate according to which they are arranged, successively on one side and the other of the longitudinal axis, so as to constitute a broken line.
  • Adjacent ripples constitute ridge lines on a first face and on a second opposite side of the plate of the heat exchanger.
  • the plates of a plate heat exchanger bundle that are stacked on top of each other are arranged alternately according to a first and according to a second arrangement, the stacked plates being returned 180 ° face-to-face with respect to the two adjacent plates stacking.
  • the plates designated alternately as plates odd and even plates have corrugations whose straight superimposed sections have different orientations. Thereby, the plates rest on one another by means of their undulations, in practically punctual areas.
  • the plates stacked one over the other with a beam are connected to each other along their longitudinal edges, by connecting means sealing the sides side of the beam.
  • Flat sheets arranged at the top and at the bottom of the stack and attached to the lateral connection means also ensure the closure of the upper part and the part bottom of the plate bundle.
  • the object of the invention is therefore to propose a plate of an exchanger formed by a stack of plates each comprising a central zone in which the plate has first ripples adjacent generally directed along a longitudinal direction axis of the plate and having substantially rectilinear sections successive and oblique with respect to the longitudinal axis having an inclination successively on one side and the other of the longitudinal axis, this plate to ensure the absorption of deformations of thermal origin or Mechanical plate in the heat exchanger in service and limit thus the stresses on the plate and the structures of the heat exchanger thermal.
  • the heat exchanger plate according to the invention has, in addition, at least one set of successive sections arranged angularly or aligned, second undulations, extending along a general transverse direction alignment axis, intersecting the whole longitudinal axes along which the first corrugations are arranged, the transverse alignment axis of the substantially rectilinear sections second undulations at an angle between 45 ° and 90 ° with the longitudinal axes of the first undulations.
  • FIG. 1 is a view from above showing first and second corrugations of a heat exchanger plate according to the invention.
  • Figures 2A, 2B, 2C and 2D are partial top views of heat exchanger plates according to the invention and according to a first, a second, third and fourth embodiments, respectively.
  • Figure 2E is a sectional view along E-E of Figure 2D showing a phase of assembly of the plate in an end zone.
  • FIGS 3A and 3B are top views of heat exchanger plates thermal device according to the invention comprising several sets of seconds adjacent ripples with different relative provisions in the longitudinal direction of the heat exchanger plate.
  • FIG. 4 is a top view of a heat exchanger plate according to the invention comprising rectilinear transverse corrugations.
  • FIG. 5 is an exploded perspective view of part of a beam plate heat exchanger showing the layout of the zones of transversal deformation.
  • FIG. 6 is a perspective view of a plate of a beam plate heat exchanger showing fluid flow paths at the contact areas of the plate.
  • FIG. 1 shows a section of a plate 1 of a plate heat exchanger, produced according to the invention.
  • the plate 1 is obtained from a sheet, for example steel stainless steel, on which forming is carried out to obtain corrugations.
  • the direction of flow is represented by an arrow. of a fluid in the longitudinal direction 2 of the plate 1, for example at contact of its upper face visible in Figure 1, which shows a heat exchanger plate section in the longitudinal direction 2.
  • the plate 1 comprises a first set of corrugations 3 or corrugations longitudinally disposed generally in the longitudinal direction 2 of the plate, each of the corrugations 3 comprising successive sections substantially rectilinear and arranged obliquely to the direction an axis 4 of longitudinal direction of the plate 1.
  • Figure 1 there is shown a plurality of longitudinal axes 4 along which the longitudinal corrugations are aligned. 3.
  • the successive rectilinear sections of the first undulations 3 of longitudinal general direction are inclined with respect to longitudinal axes 4, preferably at an angle between 10 ° and 30 °.
  • Two successive sections of a wave 3 are directed in a first direction and in a second direction relative to the axis 4, the successive sections making between them a very open angle of the order of 120 ° to 160 °.
  • each of the plates 1 of the exchanger thermal, second undulations 5 of transverse direction 6, that is, aligned generally in transverse axes 6 making an angle that can be between 45 ° and 90 ° with the longitudinal direction 2 of the axes 4 of the first undulations.
  • the second undulations 5 can be directed according to axes 6 perpendicular to the longitudinal axes 4 of the plate 1.
  • the seconds 5 corrugations comprise successive rectilinear sections making each an angle between 0 ° and 30 ° with the transverse alignment direction 6, two successive segments of a corrugation being oriented in a first direction and in a second direction opposite to the direction transversal alignment 6.
  • the successive sections of the seconds transverse waves make angles between them between 120 ° and 180 °.
  • the transverse corrugations 5 can be arranged according to several transverse deformation zones 8 aligned each in the direction of a transverse axis 6.
  • FIG. 1 shows two separate deformation zones 8 by a distance L in the longitudinal direction 2 of the plate 1.
  • the latter may comprise any number of deformation zones 8 comprising transverse corrugations 5.
  • a heat exchanger plate according to the invention must have at least one deformation zone 8 in which provides at least one transverse corrugation constituting on both sides opposite of the plate, a protruding ridge portion and a portion thereof hollow.
  • the deformation zones 8 of the plate 1 comprise several adjacent corrugations 5 each forming a crest portion on one of the faces of the sheet and a hollow part, on the other side.
  • the adjacent longitudinal corrugations 3 constitute themselves a protruding ridge portion and a recessed portion on each of the faces of the plate 1, the recessed portions on one of the faces of the sheet constituting the ridge portions projecting from the second face of the plate.
  • the deformation zones 8 constituted by the second undulations 5 intersect all the axes 4 of the first undulations 3 of direction longitudinal, along the entire width of the exchanger plate 1.
  • each of the successive segments of a corrugation 5 of a deformation zone 8 makes, with the segments of longitudinal corrugations 3 that it intersects, an angle that can be for example close to 45 ° or 90 °.
  • the successive segments of the second undulations can make any angle with each of the successive segments of the first undulations that they intersect, this angle being example between 30 ° and 90 °.
  • deformation zones 8 constituted by the seconds corrugations 5 of transverse direction are arranged along the entire width of plate 1 of the heat exchanger, a deformation in the direction longitudinal axis of plate 1 can be absorbed at the level of deformation 8 which have a certain flexibility due to the presence adjacent corrugations 5.
  • FIGS. 2A, 2B, 2C and 2D four variants of FIG. production of deformation zones 8 consisting of transverse corrugations 5 adjacent to a plate 1 of a plate heat exchanger.
  • the zones 8 each comprise at least one transverse directional corrugation 5 and for example four adjacent corrugations, as shown on the figures.
  • FIG. 2A shows a deformation zone 8 constituted by by transverse corrugations intersecting the longitudinal corrugations 3, each in a portion of a rectilinear section of the ripple longitudinal 3 intermediate between the ends of the section ensuring its junction with neighboring sections arranged angularly in one direction and in the other relative to an axis 4.
  • FIGS. 2A, 2B, 2C and 2D show ripples transverse 5 whose alignment axes 6 are perpendicular to the axes alignment 4 longitudinal corrugations. More generally, the axes along which are aligned the successive rectilinear sections of the second transverse corrugations 5 can make an angle of 45 ° to 90 ° with the alignment axes of the successive rectilinear sections of the first ripples 3.
  • the rectilinear sections of the second undulations 5 also make an angle (for example close to 60 ° in FIG. 2A) with the longitudinal axes 4 of the first undulations 3 of the plate 1.
  • FIG. 2B shows a variant embodiment of the zones of deformation 8 which consist of transverse corrugations 5 adjacent intersecting the first undulations 3 of the next plate 1 junction zones between the successive sections of the first undulations 3 arranged angularly.
  • the deformation zone 8 is aligned according to a transverse axis 6 passing through the transversely aligned junction zones rectilinear sections of the first undulations 3.
  • FIG. 2C shows a deformation zone 8 constituted by by transverse corrugations 5 which have discontinuities 9 short length, the length in the transverse direction of the discontinuities 9 being for example less than the width of a steering corrugation 3 longitudinal.
  • the plate 1 does not comprise no transverse corrugations.
  • the plate 1 Due to the short length in the transverse direction of the discontinuities 9, the plate 1 has a flexibility substantially similar to that of the plates shown in Figures 2A and 2B.
  • FIG. 2C shows an end zone 10 of the plate 1 at which the entry or exit of a fluid is made in the beam of the heat exchanger.
  • the area 10 of the plate may have a double network of intersecting corrugations to ensure on one side of the sheet, the distribution of a first exchange fluid in the channels and, on the other side of the plate, the recovery of a second fluid exchange.
  • the end zone 10 of the plate can be made as shown in FIGS. 1 and 2C, by a completely smooth part of the plate having no ripples.
  • the entry and exit zones of the beam guiding the fluids are constituted, by independent plates inserted between the smooth entrance parts of the plates of the heat exchanger.
  • the deformation zone can be made 8 in the immediate vicinity of an end portion 10 of the plate 1 of the exchanger, at the end of the longitudinal corrugations 3.
  • plate 2 may comprise an end zone 10 in which the plate 1 has a deformation zone 8 comprising transverse corrugations 5.
  • an insert 13 which will be placed in the heat exchanger between two successive plates.
  • the insert 13 is made in the form of a plate that can comprise a set of corrugations 3 'in a suitable arrangement for guiding fluids at one end of the heat exchanger.
  • the insert 13 has a through opening 14 whose shape and size are adapted to those of the deformation zone 8 so that the undulations transverse 5 are housed in the opening 14, when place the insert 13 on the plate 1.
  • the end portion 10 of the sheet 1 can thus be deform in the longitudinal direction and contribute to guiding fluids in the heat exchanger.
  • deformation zones 8 comprising transverse corrugations 5 juxtaposed
  • the transverse corrugations of the end zone may consist of sections arranged angularly or aligned; the shape of the openings of the insert is adapted to the shape of the ripples cross.
  • FIG. 4 shows a plate 1 according to the invention comprising transversal deformation zones 8 each constituted of a single rectilinear ripple directed in the transverse direction 6 plate; in this case, the successive sections arranged angularly transverse corrugations 5 as described above are replaced by aligned sections forming between them a flat angle (180 °).
  • the corrugations 5 can be placed, as shown in the figure 4, according to the angular connection areas of the longitudinal corrugations 3 in the form of a broken line, of the plate 1.
  • each of the plates 1 of the exchanger may comprise one or more deformation zones 8 ensuring flexibility in the heat exchanger plate allowing it to deform in the longitudinal direction.
  • the successive zones of deformation 8 can be arranged according to the axial direction of the heat exchanger plate 1, equidistant from each other (constant distance L in FIG. 3A) or at distances variables in the longitudinal direction (distances A, B and C with A ⁇ B ⁇ C, as shown in Figure 3B).
  • the transverse alignment direction 6 of the deformation zones 8 can do, with the direction of the axes 4 ripples 3 longitudinal direction, an angle between 45 ° and 90 °.
  • deformation zones 8 A requirement concerning the deformation zones 8 is however that these deformation zones constituted by the transverse corrugations 5 virtually intersect all of the longitudinal corrugations 3 extending practically over the entire width of the exchanger plate 1 thermal, that the general direction of the deformation zones is perpendicular in the longitudinal direction or oblique with respect to this direction.
  • FIG. 5 is an exploded view of part of a beam a plate heat exchanger to which the invention applies.
  • the exchanger plates 1a, 1b and 1c comprise corrugations longitudinal lines 3 whose ridge lines have been drawn in the form of lines broken, these crest lines corresponding to the summits of the undulations on the upper face of the plates 1a, 1b and 1c.
  • the corrugations 3 consist of successive rectilinear sections arranged angularly relative to each other and directed according to longitudinal axes 4 of the heat exchanger plates.
  • the intermediate plate 1b, or odd plate, intended to be inserted between the even plates 1a and 1c is turned 180 ° face to face relative to the orientation of the even plates 1a, 1c.
  • Oblique sections corrugations 3 and ridge lines shown in Figure 5 which have different orientations on the even plates 1a, 1c and on the plate odd 1b come into contact with each other during the overlay plates 1a, 1b and 1c along zones 11 of the longitudinal corrugations, practically punctual.
  • FIG. 6 shows the point contact zones 11 corrugations of the sheet 1b with those of the sheet 1a.
  • the principle of plate heat exchangers is to circulate a first fluid in a longitudinal general direction and in a first direction (represented by the arrow 2) in every other space between the successive sheets of the stack and a second fluid, in the longitudinal direction and generally countercurrent to the flow of the first fluid (such as represented by the arrow 2 '), in the spaces between the plates, in which there is no circulation of the first fluid, that is to say in a space on two between the sheets.
  • the fluids (by example the second fluid flowing generally in the direction 2 ') are distributed in the passages between the points of contact 11 of the corrugations longitudinal.
  • the plates 1a, 1b and 1c are exchanger plates according to the invention which comprise deformation zones 8a, 8b or 8c extending transversely across the width of the sheets and spaced apart from each other in the longitudinal direction, each of the sheets of the beam of the heat exchanger which may comprise several zones of deformation 8a, 8b or 8c.
  • the deformation zones 8b of the intermediate sheet 1b odd are preferably shifted in the direction longitudinal to the deformation zones 8a and 8c of the plates pairs 1a and 1c.
  • the deformation zones 8a and 8c even plates and the zones of deformation of the odd plates are offset from one another in the longitudinal direction of the sheets of the stack.
  • Deformation zones of all even plates may be in overlapping positions, as may all zones deformation of odd sheets but it is also possible to imagine other provisions in which the deformation zones of the Even plates or odd plates are not all superimposed.
  • the deformation zones 8b of the odd sheet will be superposed preferably with those of even plates to limit the pressure drops.
  • openings 9 obtained during the production of the second undulations 5 to limit the pressure drop of the fluids circulating in the exchanger heat, at the deformation zones. These openings 9 are obtained by making the second undulations 5, in discontinuous form.
  • the heat exchanger plates according to the invention allow therefore to absorb deformations in the longitudinal direction, in particular deformations due to thermal expansion of the sheets, without that appear constraints in the common parts of the sheets, between the deformation zones.
  • longitudinal or transverse undulations can have different shapes from those that have been described, that the ripples transverse can be oriented along alignment axes making any angle between 45 ° and 90 ° with the axes longitudinal corrugations of the plates and that the deformation zones plates may be constituted by at least one transverse corrugation.
  • the number of deformation zones according to the length of the sheet can be any and determined according to the total length of the plates the heat exchanger and the width and number of ripples transversal deformation zones.
  • the distance between the deformation zones, in the longitudinal direction, can be constant over the entire length of the heat exchanger plates heat or, conversely, variable.
  • deformation calculations make it possible to determine the optimal solution as to the number of deformation zones and the distance between these areas, depending on the total length of the plate the heat exchanger and the temperatures of the fluids flowing on contact plates of the exchanger.
  • the invention can be applied to many heat exchangers in plates used in the industry.

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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)
  • Separation By Low-Temperature Treatments (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

The heat exchange panel has stacked plates (1-1c) each with a deformable central area having undulations (3) formed of successive linear and oblique portions. The oblique portions have alternating different directions of offset but generally follow the longitudinal direction of the plates. Secondary undulations (5) extend at an angle of between forty five and ninety degrees to the first.

Description

L'invention concerne une plaque d'un échangeur thermique et un échangeur thermique à plaques constitué par des plaques suivant l'invention.The invention relates to a plate of a heat exchanger and a Plate heat exchanger consisting of plates according to the invention.

On connaít des échangeurs thermiques utilisés par exemple dans le domaine du raffinage du pétrole ou de la pétrochimie, qui sont réalisés sous la forme d'échangeurs thermiques à plaques et qui peuvent assurer un échange de chaleur avec un très bon rendement, entre un fluide chaud et un fluide froid, le fluide froid pouvant subir, par exemple, une augmentation de température de l'ordre de 300°C à 400°C.Heat exchangers are known used for example in the petroleum refining or petrochemicals, which are carried out under the form of plate heat exchangers and which can ensure a heat exchange with a very good efficiency, between a hot fluid and a cold fluid, the cold fluid being able to undergo, for example, an increase in temperature of the order of 300 ° C to 400 ° C.

Dans ces applications, les échangeurs thermiques à plaques ont pour avantage de présenter un très bon coefficient d'échange thermique.In these applications, the plate heat exchangers have the following advantage of having a very good heat exchange coefficient.

De tels échangeurs thermiques comprennent généralement un ou plusieurs faisceaux de plaques formés chacun par un empilement de plaques superposées dans des dispositions parallèles les unes aux autres et délimitant entre elles un double circuit de circulation de deux fluides totalement séparés.Such heat exchangers generally comprise one or several bundles of plates each formed by a stack of plates superimposed in parallel arrangements to each other and delimiting between them a double circulation circuit of two fluids totally separated.

Chacune des plaques élémentaires d'un faisceau de l'échangeur thermique à plaques est constituée par une tôle métallique fine, par exemple en acier inoxydable, mise en forme pour comporter des ondulations de forme particulière dans une zone centrale de la plaque au travers de laquelle sont réalisés les transferts de chaleur entre les fluides.Each of the elementary plates of a beam of the exchanger thermal plate consists of a thin metal sheet, for example stainless steel, shaped to include ripples of particular shape in a central area of the plate through which the heat transfers between the fluids are made.

Les ondulations des plaques du faisceau d'échange thermique sont disposées de manière adjacente l'une par rapport à l'autre, de manière à couvrir toute la surface de la zone centrale de la plaque de l'échangeur thermique. Les ondulations peuvent être dirigées suivant une direction longitudinale de la plaque qui constitue une direction de circulation générale des fluides entre lesquels on réalise un échange thermique.The corrugations of the plates of the heat exchange bundle are disposed adjacent to each other so as to cover the entire surface of the central area of the heat exchanger plate thermal. The undulations can be directed in a longitudinal direction plate which constitutes a general circulation direction of fluids between which a heat exchange is performed.

Les fluides peuvent par exemple circuler à contre-courant, c'est-à-dire dans des directions parallèles et des sens opposés, de part et d'autre des plaques du faisceau d'échange thermique empilées les unes sur les autres.The fluids can for example flow against the current, that is to say in parallel directions and opposite directions, on both sides of heat exchange bundle plates stacked one above the other.

Les ondulations de chacune des plaques dirigées chacune suivant un axe longitudinal de la plaque entre une partie d'extrémité d'entrée et une partie d'extrémité de sortie de la plaque comportent des tronçons sensiblement rectilignes, successifs dans la direction longitudinale et obliques par rapport à cette direction de la plaque. Les tronçons successifs et obliques ont une inclinaison par rapport à l'axe longitudinal de la plaque suivant lequel ils sont disposés, successivement d'un côté et de l'autre de l'axe longitudinal, de manière à constituer une ligne brisée. Les ondulations adjacentes constituent des lignes de crête sur une première face et sur une seconde face opposée de la plaque de l'échangeur thermique.The undulations of each of the plates each longitudinal axis of the plate between an inlet end portion and a outlet end portion of the plate have substantially rectilinear, successive in the longitudinal direction and oblique by relative to this direction of the plate. The successive and oblique sections have an inclination with respect to the longitudinal axis of the plate according to which they are arranged, successively on one side and the other of the longitudinal axis, so as to constitute a broken line. Adjacent ripples constitute ridge lines on a first face and on a second opposite side of the plate of the heat exchanger.

Les plaques d'un faisceau d'échangeur thermique à plaques qui sont empilées l'une sur l'autre sont disposées alternativement suivant une première et suivant une seconde dispositions, les plaques empilées étant retournées face pour face de 180° par rapport aux deux plaques adjacentes de l'empilement. Ainsi, les plaques désignées alternativement comme plaques impaires et comme plaques paires présentent des ondulations dont les tronçons rectilignes superposés ont des orientations différentes. De ce fait, les plaques reposent les unes sur les autres par l'intermédiaire de leurs ondulations, dans des zones pratiquement ponctuelles.The plates of a plate heat exchanger bundle that are stacked on top of each other are arranged alternately according to a first and according to a second arrangement, the stacked plates being returned 180 ° face-to-face with respect to the two adjacent plates stacking. Thus, the plates designated alternately as plates odd and even plates have corrugations whose straight superimposed sections have different orientations. Thereby, the plates rest on one another by means of their undulations, in practically punctual areas.

Les plaques empilées l'une sur l'autre d'un faisceau, généralement de forme parallélépipédique sont reliées l'une à l'autre suivant leurs bords longitudinaux, par des moyens de liaison assurant la fermeture étanche des côtés latéraux du faisceau. Des tôles planes disposées à la partie supérieure et à la partie inférieure de l'empilement et fixées aux moyens de liaison latéraux assurent également la fermeture de la partie supérieure et de la partie inférieure du faisceau de plaques.The plates stacked one over the other with a beam, usually parallelepipedal shape are connected to each other along their longitudinal edges, by connecting means sealing the sides side of the beam. Flat sheets arranged at the top and at the bottom of the stack and attached to the lateral connection means also ensure the closure of the upper part and the part bottom of the plate bundle.

Les segments successifs rectilignes des ondulations longitudinales des plaques de l'échangeur thermique font entre eux des angles obtus très ouverts, chacun des segments successifs étant peu inclinés par rapport à l'axe longitudinal par rapport auquel il est disposé en oblique.The successive rectilinear segments of the longitudinal corrugations plates of the heat exchanger make between them obtuse angles very open, each of the successive segments being slightly inclined with respect to the longitudinal axis with respect to which it is arranged obliquely.

Cette disposition des segments successifs des ondulations limite considérablement la possibilité d'allongement de la plaque dans l'échangeur thermique en service, sous l'effet des dilatations dues au contact d'un fluide à haute température. Les plaques présentent en effet une grande rigidité dans la direction longitudinale, du fait de la faible inclinaison des tronçons successifs des ondulations. This arrangement of the successive segments of the limiting ripples considerably the possibility of lengthening the plate in the heat exchanger in use, due to expansion due to contact with a fluid at high temperature. The plates have indeed a high rigidity in the longitudinal direction, because of the small inclination of the sections successive waves.

Les sollicitations d'origine thermique ou mécanique auxquelles est soumis l'échangeur de chaleur doivent donc être absorbées par chacune des plaques de l'échangeur à plaques et d'autre part par l'ensemble du faisceau de plaques à l'état assemblé.Solicitations of thermal or mechanical origin to which is subject the heat exchanger must therefore be absorbed by each plates of the plate heat exchanger and secondly by the entire beam of plates in the assembled state.

Il peut en résulter des contraintes excessives dans les plaques qui sont en tôles fines et dans les structures du faisceau et de l'échangeur thermique.This can result in excessive stress in the plates are made of thin sheets and in the structures of the beam and the heat exchanger.

Le but de l'invention est donc de proposer une plaque d'un échangeur thermique constitué par un empilement de plaques comportant chacune une zone centrale dans laquelle la plaque présente des premières ondulations adjacentes dirigées de manière générale suivant un axe de direction longitudinale de la plaque et comportant des tronçons sensiblement rectilignes successifs et obliques par rapport à l'axe longitudinal ayant une inclinaison successivement d'un côté et de l'autre de l'axe longitudinal, cette plaque permettant d'assurer une absorption de déformations d'origine thermique ou mécanique de la plaque dans l'échangeur thermique en service et de limiter ainsi les contraintes subies par la plaque et par les structures de l'échangeur thermique.The object of the invention is therefore to propose a plate of an exchanger formed by a stack of plates each comprising a central zone in which the plate has first ripples adjacent generally directed along a longitudinal direction axis of the plate and having substantially rectilinear sections successive and oblique with respect to the longitudinal axis having an inclination successively on one side and the other of the longitudinal axis, this plate to ensure the absorption of deformations of thermal origin or Mechanical plate in the heat exchanger in service and limit thus the stresses on the plate and the structures of the heat exchanger thermal.

Dans ce but, la plaque d'échangeur thermique suivant l'invention comporte, de plus, au moins un ensemble de tronçons successifs disposés angulairement ou alignés, de secondes ondulations, s'étendant suivant un axe d'alignement de direction générale transversale, recoupant l'ensemble des axes longitudinaux suivant lesquels sont disposées les premières ondulations, l'axe d'alignement transversal des tronçons sensiblement rectilignes des secondes ondulations faisant un angle compris entre 45° et 90° avec les axes longitudinaux des premières ondulations.For this purpose, the heat exchanger plate according to the invention has, in addition, at least one set of successive sections arranged angularly or aligned, second undulations, extending along a general transverse direction alignment axis, intersecting the whole longitudinal axes along which the first corrugations are arranged, the transverse alignment axis of the substantially rectilinear sections second undulations at an angle between 45 ° and 90 ° with the longitudinal axes of the first undulations.

Selon des modalités particulières de l'invention :

  • les secondes ondulations de direction générale transversale recoupent les premières ondulations dans des zones de tronçons rectilignes des premières ondulations situées entre les extrémités des tronçons.
  • les secondes ondulations recoupent les premières ondulations suivant des zones de jonction entre les tronçons successifs des premières ondulations.
  • les secondes ondulations sont discontinues et comportent différentes parties successives dans la direction transversale séparées par des zones dans lesquelles la plaque d'échangeur thermique ne comporte pas de secondes ondulations.
  • la plaque d'échangeur comporte au moins deux zones de déformation constituées chacune d'au moins un ensemble de tronçons de secondes ondulations.
  • chacune des zones de déformation comporte au moins deux secondes ondulations adjacentes s'étendant suivant la direction transversale de la plaque d'échangeur thermique.
  • la plaque d'échangeur thermique comporte une pluralité de zones de déformation disposées successivement dans la direction longitudinale de la plaque d'échangeur thermique avec un espacement constant entre deux zones successives de déformation .
  • la plaque d'échangeur comporte une pluralité de zones de déformation réparties suivant la direction longitudinale de la plaque d'échangeur thermique, de manière que les zones de déformation successives soient séparées dans la direction longitudinale par une distance variable suivant la longueur de la plaque d'échangeur thermique.
According to particular embodiments of the invention:
  • the second undulations of transverse general direction intersect the first undulations in areas of rectilinear sections of the first undulations located between the ends of the sections.
  • the second undulations intersect the first undulations according to junction areas between the successive sections of the first undulations.
  • the second undulations are discontinuous and comprise different successive parts in the transverse direction separated by zones in which the heat exchanger plate does not comprise second undulations.
  • the exchanger plate comprises at least two deformation zones each consisting of at least one set of sections of second undulations.
  • each of the deformation zones comprises at least two adjacent second corrugations extending in the transverse direction of the heat exchanger plate.
  • the heat exchanger plate comprises a plurality of deformation zones arranged successively in the longitudinal direction of the heat exchanger plate with a constant spacing between two successive zones of deformation.
  • the exchanger plate comprises a plurality of deformation zones distributed in the longitudinal direction of the heat exchanger plate, so that the successive deformation zones are separated in the longitudinal direction by a variable distance along the length of the heat exchanger plate; 'heat exchanger.

L'invention est également relative à un faisceau d'un échangeur thermique à plaques constitué par un empilement de plaques suivant l'invention.

  • Chacune des plaques du faisceau de l'échangeur thermique peut comporter au moins deux zones de déformation disposées dans des positions telles que, suivant la longueur de deux plaques successives de l'empilement, les zones de déformation ne soient pas superposées dans l'empilement de plaques de l'ensemble de plaques.
The invention also relates to a beam of a plate heat exchanger consisting of a stack of plates according to the invention.
  • Each of the plates of the bundle of the heat exchanger may comprise at least two deformation zones arranged in positions such that, along the length of two successive plates of the stack, the deformation zones are not superimposed in the stack of plates of the set of plates.

Afin de bien faire comprendre l'invention, on va maintenant décrire, à titre d'exemples, en se référant aux figures jointes en annexe, plusieurs modes de réalisation d'une plaque d'un échangeur thermique, suivant l'invention, et d'un faisceau d'échangeur thermique à plaques comportant un empilement de plaques suivant l'invention.In order to fully understand the invention, we will now describe As examples, with reference to the attached figures, several for producing a plate of a heat exchanger, according to the invention, and a plate heat exchanger bundle having a stack of plates according to the invention.

La figure 1 est une vue de dessus montrant des premières et des secondes ondulations d'une plaque d'échangeur thermique suivant l'invention. FIG. 1 is a view from above showing first and second corrugations of a heat exchanger plate according to the invention.

Les figures 2A, 2B, 2C et 2D sont des vues de dessus partielles de plaques d'échangeur thermique suivant l'invention et suivant un premier, un second, un troisième et un quatrième modes de réalisation, respectivement.Figures 2A, 2B, 2C and 2D are partial top views of heat exchanger plates according to the invention and according to a first, a second, third and fourth embodiments, respectively.

La figure 2E est une vue en coupe suivant E-E de la figure 2D montrant une phase d'assemblage de la plaque dans une zone d'extrémité.Figure 2E is a sectional view along E-E of Figure 2D showing a phase of assembly of the plate in an end zone.

Les figures 3A et 3B sont des vues de dessus de plaques d'échangeur thermique suivant l'invention comportant plusieurs ensembles de secondes ondulations adjacentes ayant des dispositions relatives différentes dans la direction longitudinale de la plaque d'échangeur thermique.Figures 3A and 3B are top views of heat exchanger plates thermal device according to the invention comprising several sets of seconds adjacent ripples with different relative provisions in the longitudinal direction of the heat exchanger plate.

La figure 4 est une vue de dessus d'une plaque d'échangeur thermique suivant l'invention comportant des ondulations transversales rectilignes.FIG. 4 is a top view of a heat exchanger plate according to the invention comprising rectilinear transverse corrugations.

La figure 5 est une vue en perspective éclatée d'une partie d'un faisceau d'échangeur thermique à plaques montrant la disposition des zones de déformation transversales.FIG. 5 is an exploded perspective view of part of a beam plate heat exchanger showing the layout of the zones of transversal deformation.

La figure 6 est une vue en perspective d'une plaque d'un faisceau d'échangeur à plaques montrant les parcours de passage de fluide au niveau de zones de contact de la plaque.FIG. 6 is a perspective view of a plate of a beam plate heat exchanger showing fluid flow paths at the contact areas of the plate.

Sur la figure 1, on a représenté un tronçon d'une plaque 1 d'un échangeur thermique à plaques, réalisé suivant l'invention.FIG. 1 shows a section of a plate 1 of a plate heat exchanger, produced according to the invention.

La plaque 1 est obtenue à partir d'une tôle, par exemple en acier inoxydable, sur laquelle on réalise un formage pour obtenir des ondulations.The plate 1 is obtained from a sheet, for example steel stainless steel, on which forming is carried out to obtain corrugations.

Sur la figure 1, on a représenté par une flèche le sens d'écoulement d'un fluide dans la direction longitudinale 2 de la plaque 1, par exemple au contact de sa face supérieure visible sur la figure 1, sur laquelle on a représenté un tronçon de plaque d'échangeur thermique suivant la direction longitudinale 2.In FIG. 1, the direction of flow is represented by an arrow. of a fluid in the longitudinal direction 2 of the plate 1, for example at contact of its upper face visible in Figure 1, which shows a heat exchanger plate section in the longitudinal direction 2.

La plaque 1 comporte un premier jeu d'ondulations 3 ou ondulations longitudinales disposées généralement dans la direction longitudinale 2 de la plaque, chacune des ondulations 3 comportant des tronçons successifs sensiblement rectilignes et disposés en oblique par rapport à la direction d'un axe 4 de direction longitudinale de la plaque 1.The plate 1 comprises a first set of corrugations 3 or corrugations longitudinally disposed generally in the longitudinal direction 2 of the plate, each of the corrugations 3 comprising successive sections substantially rectilinear and arranged obliquely to the direction an axis 4 of longitudinal direction of the plate 1.

Sur la figure 1, on a représenté une pluralité d'axes longitudinaux 4 suivant lesquels sont alignées les ondulations longitudinales 3. Comme il est visible sur la figure 1, les tronçons successifs rectilignes des premières ondulations 3 de direction générale longitudinale sont inclinés par rapport aux axes longitudinaux 4, de préférence d'un angle compris entre 10° et 30°. Deux tronçons successifs d'une ondulation 3 sont dirigés dans un premier sens et dans un second sens par rapport à l'axe 4, les tronçons successifs faisant entre eux un angle très ouvert de l'ordre de 120° à 160°.In Figure 1, there is shown a plurality of longitudinal axes 4 along which the longitudinal corrugations are aligned. 3. As it is visible in FIG. 1, the successive rectilinear sections of the first undulations 3 of longitudinal general direction are inclined with respect to longitudinal axes 4, preferably at an angle between 10 ° and 30 °. Two successive sections of a wave 3 are directed in a first direction and in a second direction relative to the axis 4, the successive sections making between them a very open angle of the order of 120 ° to 160 °.

De ce fait, comme il a été expliqué plus haut, les possibilités de déformation dans la direction longitudinale de la plaque 1, par exemple sous l'effet d'une dilatation thermique due à la mise en température des plaques de l'échangeur de chaleur en service sont extrêmement limitées. Il en résulte des contraintes importantes dans les plaques 1 de l'échangeur de chaleur et dans le faisceau constitué par l'empilement de plaques 1.As a result, as explained above, the possibilities of deformation in the longitudinal direction of the plate 1, for example under the effect of thermal expansion due to the heating of the plates of the heat exchanger in use are extremely limited. It results important constraints in the plates 1 of the heat exchanger and in the bundle constituted by the stack of plates 1.

Selon l'invention, on réalise, sur chacune des plaques 1 de l'échangeur thermique, des secondes ondulations 5 de direction transversale 6, c'est-à-dire alignées, de manière générale, suivant des axes transversaux 6 faisant un angle qui peut être compris entre 45° et 90° avec la direction longitudinale 2 des axes 4 des premières ondulations. Comme représenté sur la figure 1, les secondes ondulations 5 peuvent être dirigées suivant des axes 6 perpendiculaires aux axes longitudinaux 4 de la plaque 1. Les secondes ondulations 5 comportent des tronçons rectilignes successifs faisant chacun un angle compris entre 0° et 30° avec la direction transversale d'alignement 6, deux segments successifs d'une ondulation 5 étant orientés dans un premier sens et dans un second sens opposé par rapport à la direction transversale 6 d'alignement. De ce fait, les tronçons successifs des secondes ondulations transversales font entre eux des angles compris entre 120° et 180°.According to the invention, it is realized on each of the plates 1 of the exchanger thermal, second undulations 5 of transverse direction 6, that is, aligned generally in transverse axes 6 making an angle that can be between 45 ° and 90 ° with the longitudinal direction 2 of the axes 4 of the first undulations. As shown on 1, the second undulations 5 can be directed according to axes 6 perpendicular to the longitudinal axes 4 of the plate 1. The seconds 5 corrugations comprise successive rectilinear sections making each an angle between 0 ° and 30 ° with the transverse alignment direction 6, two successive segments of a corrugation being oriented in a first direction and in a second direction opposite to the direction transversal alignment 6. As a result, the successive sections of the seconds transverse waves make angles between them between 120 ° and 180 °.

Les ondulations transversales 5 peuvent être disposées suivant plusieurs zones de déformation transversale 8 alignées chacune suivant la direction d'un axe transversal 6.The transverse corrugations 5 can be arranged according to several transverse deformation zones 8 aligned each in the direction of a transverse axis 6.

Sur la figure 1, on a représenté deux zones de déformation 8 séparées par une distance L dans la direction longitudinale 2 de la plaque 1. FIG. 1 shows two separate deformation zones 8 by a distance L in the longitudinal direction 2 of the plate 1.

Suivant les besoins de déformation longitudinale de la plaque 1, celle-ci peut comporter un nombre quelconque de zones de déformation 8 comportant des ondulations transversales 5.According to the longitudinal deformation needs of the plate 1, the latter may comprise any number of deformation zones 8 comprising transverse corrugations 5.

De manière générale, une plaque d'échangeur thermique suivant l'invention doit comporter au moins une zone de déformation 8 dans laquelle on réalise au moins une ondulation transversale 5 constituant, sur les deux faces opposées de la plaque, une partie de crête en saillie et une partie en creux. De préférence, les zones de déformation 8 de la plaque 1 comportent plusieurs ondulations adjacentes 5 formant chacune une partie de crête sur une des faces de la tôle et une partie en creux, sur l'autre face.In general, a heat exchanger plate according to the invention must have at least one deformation zone 8 in which provides at least one transverse corrugation constituting on both sides opposite of the plate, a protruding ridge portion and a portion thereof hollow. Preferably, the deformation zones 8 of the plate 1 comprise several adjacent corrugations 5 each forming a crest portion on one of the faces of the sheet and a hollow part, on the other side.

Les ondulations longitudinales 3 adjacentes constituent elles-mêmes une partie de crête en saillie et une partie en creux sur chacune des faces de la plaque 1, les parties en creux sur l'une des faces de la tôle constituant les parties de crête en saillie sur la seconde face de la plaque.The adjacent longitudinal corrugations 3 constitute themselves a protruding ridge portion and a recessed portion on each of the faces of the plate 1, the recessed portions on one of the faces of the sheet constituting the ridge portions projecting from the second face of the plate.

Les zones de déformation 8 constituées par les secondes ondulations 5 recoupent l'ensemble des axes 4 des premières ondulations 3 de direction longitudinale, suivant toute la largeur de la plaque d'échangeur 1.The deformation zones 8 constituted by the second undulations 5 intersect all the axes 4 of the first undulations 3 of direction longitudinal, along the entire width of the exchanger plate 1.

Comme il est visible sur la figure 1, chacun des segments successifs d'une ondulation 5 d'une zone de déformation 8 fait, avec les segments des ondulations longitudinales 3 qu'il recoupe, un angle qui peut être par exemple voisin de 45° ou de 90°.As can be seen in FIG. 1, each of the successive segments of a corrugation 5 of a deformation zone 8 makes, with the segments of longitudinal corrugations 3 that it intersects, an angle that can be for example close to 45 ° or 90 °.

Sur la figure 1, on voit que les tronçons successifs rectilignes des secondes ondulations 5 font un angle voisin de 90° avec les tronçons des premières ondulations dirigées vers la gauche sur la figure et un angle voisin de 45° avec les segments des premières ondulations 3 dirigées vers la droite sur la figure.In FIG. 1, it can be seen that the successive rectilinear sections of the seconds corrugations 5 make an angle close to 90 ° with the sections of first undulations directed to the left in the figure and a neighboring angle 45 ° with the segments of the first undulations 3 directed towards the right on the figure.

De manière générale, les segments successifs des secondes ondulations peuvent faire un angle quelconque avec chacun des segments successifs des premières ondulations qu'ils recoupent, cet angle étant par exemple compris entre 30° et 90°.In general, the successive segments of the second undulations can make any angle with each of the successive segments of the first undulations that they intersect, this angle being example between 30 ° and 90 °.

Du fait que les zones de déformation 8 constituées par les secondes ondulations 5 de direction transversale sont disposées suivant toute la largeur de la plaque 1 de l'échangeur de chaleur, une déformation dans la direction longitudinale de la plaque 1 peut être absorbée au niveau des zones de déformation 8 qui présentent une certaine souplesse du fait de la présence des ondulations adjacentes 5.Since the deformation zones 8 constituted by the seconds corrugations 5 of transverse direction are arranged along the entire width of plate 1 of the heat exchanger, a deformation in the direction longitudinal axis of plate 1 can be absorbed at the level of deformation 8 which have a certain flexibility due to the presence adjacent corrugations 5.

Sur les figures 2A, 2B, 2C et 2D, on a représenté quatre variantes de réalisation de zones de déformation 8 constituées d'ondulations transversales 5 adjacentes d'une plaque 1 d'un échangeur thermique à plaques. Les zones 8 comportent chacune au moins une ondulation de direction transversale 5 et par exemple quatre ondulations adjacentes, comme représenté sur les figures.In FIGS. 2A, 2B, 2C and 2D, four variants of FIG. production of deformation zones 8 consisting of transverse corrugations 5 adjacent to a plate 1 of a plate heat exchanger. The zones 8 each comprise at least one transverse directional corrugation 5 and for example four adjacent corrugations, as shown on the figures.

Sur la figure 2A, on a représenté une zone de déformation 8 constituée par des ondulations transversales 5 recoupant les ondulations longitudinales 3, chacune dans une partie d'un tronçon rectiligne de l'ondulation longitudinale 3 intermédiaire entre les extrémités du tronçon assurant sa jonction avec des tronçons voisins disposés angulairement dans un sens et dans l'autre par rapport à un axe 4.FIG. 2A shows a deformation zone 8 constituted by by transverse corrugations intersecting the longitudinal corrugations 3, each in a portion of a rectilinear section of the ripple longitudinal 3 intermediate between the ends of the section ensuring its junction with neighboring sections arranged angularly in one direction and in the other relative to an axis 4.

Sur les figures 2A, 2B, 2C et 2D, on a représenté des ondulations transversales 5 dont les axes d'alignement 6 sont perpendiculaires aux axes d'alignement 4 des ondulations longitudinales. De manière plus générale, les axes suivant lesquels sont alignés les tronçons rectilignes successifs des secondes ondulations transversales 5 peuvent faire un angle de 45° à 90° avec les axes d'alignement des tronçons rectilignes successifs des premières ondulations 3.FIGS. 2A, 2B, 2C and 2D show ripples transverse 5 whose alignment axes 6 are perpendicular to the axes alignment 4 longitudinal corrugations. More generally, the axes along which are aligned the successive rectilinear sections of the second transverse corrugations 5 can make an angle of 45 ° to 90 ° with the alignment axes of the successive rectilinear sections of the first ripples 3.

Les tronçons rectilignes des secondes ondulations 5 font également un angle (par exemple voisin de 60° sur la figure 2A) avec les axes longitudinaux 4 des premières ondulations 3 de la plaque 1.The rectilinear sections of the second undulations 5 also make an angle (for example close to 60 ° in FIG. 2A) with the longitudinal axes 4 of the first undulations 3 of the plate 1.

Sur la figure 2B, on a représenté une variante de réalisation des zones de déformation 8 qui sont constituées par des ondulations transversales 5 adjacentes recoupant les premières ondulations 3 de la plaque 1 suivant des zones de jonction entre les tronçons successifs des premières ondulations 3 disposés angulairement. La zone de déformation 8 est alignée suivant un axe transversal 6 passant par les zones de jonction alignées transversalement des tronçons rectilignes des premières ondulations 3. FIG. 2B shows a variant embodiment of the zones of deformation 8 which consist of transverse corrugations 5 adjacent intersecting the first undulations 3 of the next plate 1 junction zones between the successive sections of the first undulations 3 arranged angularly. The deformation zone 8 is aligned according to a transverse axis 6 passing through the transversely aligned junction zones rectilinear sections of the first undulations 3.

Dans le cas des zones de déformation 8 représentées sur les figures 2A et 2B, les ondulations transversales 5 adjacentes constituant ces zones de déformation sont continues suivant toute la largeur de la plaque 1.In the case of deformation zones 8 shown in the figures 2A and 2B, the adjacent transverse corrugations constituting these areas deformation are continuous along the entire width of the plate 1.

Sur la figure 2C, on a représenté une zone de déformation 8 constituée par des ondulations transversales 5 qui présentent des discontinuités 9 de faible longueur, la longueur dans la direction transversale des discontinuités 9 étant par exemple inférieure à la largeur d'une ondulation 3 de direction longitudinale. Dans les zones de discontinuité 9, la plaque 1 ne comporte pas d'ondulations transversales.FIG. 2C shows a deformation zone 8 constituted by by transverse corrugations 5 which have discontinuities 9 short length, the length in the transverse direction of the discontinuities 9 being for example less than the width of a steering corrugation 3 longitudinal. In the discontinuity zones 9, the plate 1 does not comprise no transverse corrugations.

Du fait de la faible longueur dans la direction transversale des discontinuités 9, la plaque 1 présente une souplesse sensiblement analogue à celle des plaques représentées sur les figures 2A et 2B.Due to the short length in the transverse direction of the discontinuities 9, the plate 1 has a flexibility substantially similar to that of the plates shown in Figures 2A and 2B.

De plus, on a représenté sur la figure 2C, une zone d'extrémité 10 de la plaque 1 au niveau de laquelle on réalise l'entrée ou la sortie d'un fluide dans le faisceau de l'échangeur de chaleur.In addition, FIG. 2C shows an end zone 10 of the plate 1 at which the entry or exit of a fluid is made in the beam of the heat exchanger.

De manière à diriger sélectivement les fluides d'échange dans les canaux définis par les ondulations longitudinales, la zone 10 de la plaque peut comporter un double réseau d'ondulations entrecroisées pour assurer, d'un côté de la tôle, la répartition d'un premier fluide d'échange dans les canaux et, de l'autre côté de la plaque, la récupération d'un second fluide d'échange.In order to selectively direct the exchange fluids in the channels defined by the longitudinal corrugations, the area 10 of the plate may have a double network of intersecting corrugations to ensure on one side of the sheet, the distribution of a first exchange fluid in the channels and, on the other side of the plate, the recovery of a second fluid exchange.

La zone d'extrémité 10 de la plaque peut être réalisée, comme représenté sur les figures 1 et 2C, par une partie totalement lisse de la plaque ne comportant pas d'ondulations. Dans ce cas, lors de la constitution du faisceau de l'échangeur thermique par empilement de plaques l'une sur l'autre, on constitue les zones d'entrée et de sortie du faisceau guidant les fluides, par des plaques indépendantes insérées entre les parties lisses d'entrée des plaques de l'échangeur thermique.The end zone 10 of the plate can be made as shown in FIGS. 1 and 2C, by a completely smooth part of the plate having no ripples. In this case, when constituting the beam of the heat exchanger by stacking plates on one another, the entry and exit zones of the beam guiding the fluids are constituted, by independent plates inserted between the smooth entrance parts of the plates of the heat exchanger.

Comme représenté sur la figure 2C, on peut réaliser la zone de déformation 8 au voisinage immédiat d'une partie d'extrémité 10 de la plaque 1 de l'échangeur, à l'extrémité des ondulations longitudinales 3.As shown in FIG. 2C, the deformation zone can be made 8 in the immediate vicinity of an end portion 10 of the plate 1 of the exchanger, at the end of the longitudinal corrugations 3.

Comme représenté sur les figures 2D et 2E, la plaque 2 suivant l'invention peut comporter une zone d'extrémité 10 dans laquelle la plaque 1 présente une zone de déformation 8 comportant des ondulations transversales 5. Sur la tôle 1, dans sa partie d'extrémité 10, on rapporte un insert 13 qui sera placé dans l'échangeur thermique entre deux plaques successives. L'insert 13 est réalisé sous la forme d'une plaque pouvant comporter un ensemble d'ondulations 3' dans une disposition adaptée pour assurer le guidage des fluides à l'une des extrémités de l'échangeur thermique. L'insert 13 comporte une ouverture traversante 14 dont la forme et la dimension sont adaptées à celles de la zone de déformation 8 de manière que les ondulations transversales 5 viennent se loger dans l'ouverture 14, lorsqu'on place l'insert 13 sur la plaque 1. La partie d'extrémité 10 de la tôle 1 peut ainsi se déformer dans la direction longitudinale et concourir au guidage des fluides dans l'échangeur thermique. Au lieu de zones de déformation 8 comportant des ondulations transversales 5 juxtaposées, on peut prévoir, dans la partie d'extrémité 10 de la plaque 1, une ou plusieurs ondulations transversales isolées venant se loger dans une ou plusieurs ouvertures d'un insert rapporté sur la plaque 1. Les ondulations transversales de la zone d'extrémité peuvent être constituées de tronçons disposés angulairement ou alignés ; la forme des ouvertures de l'insert est adaptée à la forme des ondulations transversales.As shown in FIGS. 2D and 2E, plate 2 according to the invention may comprise an end zone 10 in which the plate 1 has a deformation zone 8 comprising transverse corrugations 5. On the sheet 1, in its end portion 10, there is reported an insert 13 which will be placed in the heat exchanger between two successive plates. The insert 13 is made in the form of a plate that can comprise a set of corrugations 3 'in a suitable arrangement for guiding fluids at one end of the heat exchanger. The insert 13 has a through opening 14 whose shape and size are adapted to those of the deformation zone 8 so that the undulations transverse 5 are housed in the opening 14, when place the insert 13 on the plate 1. The end portion 10 of the sheet 1 can thus be deform in the longitudinal direction and contribute to guiding fluids in the heat exchanger. Instead of deformation zones 8 comprising transverse corrugations 5 juxtaposed, one can predict, in the part end of the plate 1, one or more transverse corrugations insulated to fit in one or more openings of a reported insert on the plate 1. The transverse corrugations of the end zone may consist of sections arranged angularly or aligned; the shape of the openings of the insert is adapted to the shape of the ripples cross.

Sur la figure 4, on a représenté une plaque 1 suivant l'invention comportant des zones de déformation transversales 8 constituées chacune d'une seule ondulation 5 rectiligne dirigée suivant la direction transversale 6 de la plaque ; dans ce cas, les tronçons successifs disposés angulairement des ondulations transversales 5 telles que décrites plus haut sont remplacés par des tronçons alignés faisant entre eux un angle plat (180°).FIG. 4 shows a plate 1 according to the invention comprising transversal deformation zones 8 each constituted of a single rectilinear ripple directed in the transverse direction 6 plate; in this case, the successive sections arranged angularly transverse corrugations 5 as described above are replaced by aligned sections forming between them a flat angle (180 °).

Les ondulations 5 peuvent être placées, comme représenté sur la figure 4, suivant les zones de raccordement angulaire des ondulations longitudinales 3 en forme de ligne brisée, de la plaque 1.The corrugations 5 can be placed, as shown in the figure 4, according to the angular connection areas of the longitudinal corrugations 3 in the form of a broken line, of the plate 1.

Comme indiqué plus haut, chacune des plaques 1 de l'échangeur thermique peut comporter une ou plusieurs zones de déformation 8 assurant une souplesse à la plaque d'échangeur thermique lui permettant de se déformer dans la direction longitudinale. As indicated above, each of the plates 1 of the exchanger The thermal device may comprise one or more deformation zones 8 ensuring flexibility in the heat exchanger plate allowing it to deform in the longitudinal direction.

Dans le cas où les plaques d'échangeur thermique comportent une pluralité de zones de déformation 8, comme représenté sur les figures 3A et 3B, les zones successives de déformation 8 peuvent être disposées suivant la direction axiale de la plaque d'échangeur thermique 1, à égale distance l'une de l'autre (distance constante L sur la figure 3A) ou à des distances variables dans la direction longitudinale (distances A, B et C avec A ≠ B ≠ C, comme représenté sur la figure 3B).In the case where the heat exchanger plates comprise a plurality of deformation zones 8, as shown in FIGS. 3A and 3B, the successive zones of deformation 8 can be arranged according to the axial direction of the heat exchanger plate 1, equidistant from each other (constant distance L in FIG. 3A) or at distances variables in the longitudinal direction (distances A, B and C with A ≠ B ≠ C, as shown in Figure 3B).

De manière générale, la direction transversale d'alignement 6 des zones de déformation 8 peut faire, avec la direction des axes 4 des ondulations 3 de direction longitudinale, un angle compris entre 45° et 90°.In general, the transverse alignment direction 6 of the deformation zones 8 can do, with the direction of the axes 4 ripples 3 longitudinal direction, an angle between 45 ° and 90 °.

Une exigence concernant les zones de déformation 8 est cependant que ces zones de déformation constituées par les ondulations transversales 5 recoupent pratiquement l'ensemble des ondulations longitudinales 3 s'étendant pratiquement sur toute la largeur de la plaque 1 d'échangeur thermique, que la direction générale des zones de déformation soit perpendiculaire à la direction longitudinale ou oblique par rapport à cette direction.A requirement concerning the deformation zones 8 is however that these deformation zones constituted by the transverse corrugations 5 virtually intersect all of the longitudinal corrugations 3 extending practically over the entire width of the exchanger plate 1 thermal, that the general direction of the deformation zones is perpendicular in the longitudinal direction or oblique with respect to this direction.

Sur la figure 5, on a représenté, en vue éclatée, une partie d'un faisceau d'un échangeur thermique à plaques auquel s'applique l'invention.FIG. 5 is an exploded view of part of a beam a plate heat exchanger to which the invention applies.

Les plaques d'échangeur 1a, 1b et 1c comportent des ondulations longitudinales 3 dont on a tracé les lignes de crête sous la forme de lignes brisées, ces lignes de crête correspondant aux sommets des ondulations sur la face supérieure des plaques 1a, 1b et 1c.The exchanger plates 1a, 1b and 1c comprise corrugations longitudinal lines 3 whose ridge lines have been drawn in the form of lines broken, these crest lines corresponding to the summits of the undulations on the upper face of the plates 1a, 1b and 1c.

Les ondulations 3 sont constituées par des tronçons successifs rectilignes disposés angulairement l'un par rapport à l'autre et dirigés suivant des axes longitudinaux 4 des plaques d'échangeur thermique.The corrugations 3 consist of successive rectilinear sections arranged angularly relative to each other and directed according to longitudinal axes 4 of the heat exchanger plates.

La plaque intermédiaire 1b, ou plaque impaire, destinée à être intercalée entre les plaques paires 1a et 1c est retournée de 180° face pour face par rapport à l'orientation des plaques paires 1a, 1c. Les tronçons obliques des ondulations 3 et des lignes de crête représentées sur la figure 5 qui ont des orientations différentes sur les plaques paires 1a, 1c et sur la plaque impaire 1b viennent en contact les uns avec les autres lors de la superposition des tôles 1a, 1b et 1c suivant des zones 11 des ondulations longitudinales, pratiquement ponctuelles. The intermediate plate 1b, or odd plate, intended to be inserted between the even plates 1a and 1c is turned 180 ° face to face relative to the orientation of the even plates 1a, 1c. Oblique sections corrugations 3 and ridge lines shown in Figure 5 which have different orientations on the even plates 1a, 1c and on the plate odd 1b come into contact with each other during the overlay plates 1a, 1b and 1c along zones 11 of the longitudinal corrugations, practically punctual.

Sur la figure 6, on a représenté les zones de contact 11 ponctuelles des ondulations de la tôle 1b avec celles de la tôle 1a.FIG. 6 shows the point contact zones 11 corrugations of the sheet 1b with those of the sheet 1a.

Le principe des échangeurs à plaques est de faire circuler un premier fluide dans une direction générale longitudinale et dans un premier sens (représenté par la flèche 2) dans un espace sur deux entre les tôles successives de l'empilement et un second fluide, dans la direction longitudinale et généralement à contre-courant de la circulation du premier fluide (comme représenté par la flèche 2'), dans les espaces entre les tôles, dans lesquels il n'y a pas de circulation du premier fluide, c'est-à-dire dans un espace sur deux entre les tôles.The principle of plate heat exchangers is to circulate a first fluid in a longitudinal general direction and in a first direction (represented by the arrow 2) in every other space between the successive sheets of the stack and a second fluid, in the longitudinal direction and generally countercurrent to the flow of the first fluid (such as represented by the arrow 2 '), in the spaces between the plates, in which there is no circulation of the first fluid, that is to say in a space on two between the sheets.

Pour cela, dans les zones d'entrée et de sortie des tôles, des ondulations particulières ou des éléments insérés permettent de réaliser la distribution des fluides.For this, in the zones of entry and exit of the sheets, undulations particulars or inserted elements make it possible to carry out the distribution fluids.

Comme représenté sur la figure 6, par les flèches 12, les fluides (par exemple le second fluide circulant de manière générale dans la direction 2') sont répartis dans les passages entre les points de contact 11 des ondulations longitudinales.As shown in FIG. 6, by the arrows 12, the fluids (by example the second fluid flowing generally in the direction 2 ') are distributed in the passages between the points of contact 11 of the corrugations longitudinal.

Lorsqu'on réalise, sur les plaques d'échangeur de chaleur, des ondulations transversales, celles-ci doivent être mises en forme de manière à limiter le plus possible l'augmentation de perte de charge dans la circulation des fluides à l'intérieur du faisceau de l'échangeur thermique.When making ripples on the heat exchanger plates transversals, these must be shaped in such a way as to limit as much as possible the pressure drop in the traffic fluids within the bundle of the heat exchanger.

Sur la figure 5, les plaques 1a, 1b et 1c sont des plaques d'échangeur thermique suivant l'invention qui comportent des zones de déformation 8a, 8b ou 8c s'étendant transversalement sur toute la largeur des tôles et espacées l'une de l'autre dans la direction longitudinale, chacune des tôles du faisceau de l'échangeur thermique pouvant comporter plusieurs zones de déformation 8a, 8b ou 8c.In FIG. 5, the plates 1a, 1b and 1c are exchanger plates according to the invention which comprise deformation zones 8a, 8b or 8c extending transversely across the width of the sheets and spaced apart from each other in the longitudinal direction, each of the sheets of the beam of the heat exchanger which may comprise several zones of deformation 8a, 8b or 8c.

Dans le cas où les tronçons des ondulations transversales font un angle différent de 0° avec l'axe transverse 6, les zones de déformation 8b de la tôle intermédiaire 1b impaire sont, de préférence, décalées dans la direction longitudinale par rapport aux zones de déformation 8a et 8c des tôles paires 1a et 1c. Lorsqu'on réalise l'empilement, les zones de déformation 8a et 8c des tôles paires et les zones de déformation des tôles impaires sont décalées les unes par rapport aux autres dans la direction longitudinale des tôles de l'empilement. Les zones de déformation de toutes les tôles paires peuvent être dans des positions superposées, de même que toutes les zones de déformation des tôles impaires mais il est également possible d'imaginer d'autres dispositions dans lesquelles les zones de déformation des tôles paires ou des tôles impaires ne sont pas toutes superposées.In the case where the sections of the transverse corrugations make a angle different from 0 ° with the transverse axis 6, the deformation zones 8b of the intermediate sheet 1b odd are preferably shifted in the direction longitudinal to the deformation zones 8a and 8c of the plates pairs 1a and 1c. When stacking is performed, the deformation zones 8a and 8c even plates and the zones of deformation of the odd plates are offset from one another in the longitudinal direction of the sheets of the stack. Deformation zones of all even plates may be in overlapping positions, as may all zones deformation of odd sheets but it is also possible to imagine other provisions in which the deformation zones of the Even plates or odd plates are not all superimposed.

Dans le cas d'un empilement de tôles dans lequel toutes les zones de déformation des tôles paires et toute les zones de déformation des tôles impaires sont superposées, on caractérise l'empilement réalisé par le décalage d entre les zones de déformation des tôles paires et les zones de déformation des tôles impaires.In the case of a stack of sheets in which all the zones of deformation of the even plates and all the deformation zones of the odd plates are superimposed, we characterize the stack made by the offset d between the deformation zones of the even plates and the zones of deformation odd sheets.

Dans le cas où les tronçons des ondulations transversales font un angle nul (ou plat) entre eux et avec l'axe transversal 6 (ondes transversales rectilignes), les zones de déformation 8b de la tôle impaire se superposeront de préférence avec celles des tôles paires pour limiter les pertes de charge.In the case where the sections of the transverse corrugations make a zero angle (or flat) between them and with the transverse axis 6 (transverse waves rectilinear), the deformation zones 8b of the odd sheet will be superposed preferably with those of even plates to limit the pressure drops.

Comme représenté sur la figure 2C, il est également possible de prévoir des ouvertures 9 obtenues lors de la réalisation des secondes ondulations 5, pour limiter la perte de charge des fluides circulant dans l'échangeur de chaleur, au niveau des zones de déformation. Ces ouvertures 9 sont obtenues en réalisant les secondes ondulations 5, sous forme discontinue.As shown in FIG. 2C, it is also possible to predict openings 9 obtained during the production of the second undulations 5, to limit the pressure drop of the fluids circulating in the exchanger heat, at the deformation zones. These openings 9 are obtained by making the second undulations 5, in discontinuous form.

Les plaques d'échangeur thermique suivant l'invention permettent donc d'absorber des déformations dans la direction longitudinale, en particulier des déformations dues à des dilatations thermiques des tôles, sans qu'apparaissent des contraintes dans les parties courantes des tôles, entre les zones de déformation.The heat exchanger plates according to the invention allow therefore to absorb deformations in the longitudinal direction, in particular deformations due to thermal expansion of the sheets, without that appear constraints in the common parts of the sheets, between the deformation zones.

L'absorption des déformations dues à des contraintes thermiques ou mécaniques sur les tôles dans l'échangeur en service, du fait de la présence des zones de déformation, permet de limiter également les contraintes dans le ou les faisceaux de l'échangeur thermique constitués par un empilement de tôles suivant l'invention.The absorption of deformations due to thermal stresses or on the plates in the exchanger in service, because of the presence deformation zones, also limits the constraints in the heat exchanger bundle or bundles constituted by a stack of sheets according to the invention.

Cet effet d'absorption des déformations des tôles dans la direction longitudinale peut être obtenu de manière tout à fait satisfaisante avec des zones de déformation constituées par des ondulations transversales dont la surface totale représente de 5 à 10 % de la surface totale des ondulations longitudinales des tôles.This effect of absorption of the deformations of the sheets in the direction longitudinal approach can be obtained quite satisfactorily with deformation zones formed by transverse corrugations whose total area represents 5 to 10% of the total area of the undulations longitudinal sheets.

L'invention ne se limite pas aux modes de réalisation qui ont été décrits.The invention is not limited to the embodiments that have been described.

C'est ainsi que les ondulations longitudinales ou transversales peuvent avoir des formes différentes de celles qui ont été décrites, que les ondulations transversales peuvent être orientées suivant des axes d'alignement faisant un angle quelconque compris entre 45° et 90° avec les axes des ondulations longitudinales des plaques et que les zones de déformation des plaques peuvent être constituées par au moins une ondulation transversale.Thus, longitudinal or transverse undulations can have different shapes from those that have been described, that the ripples transverse can be oriented along alignment axes making any angle between 45 ° and 90 ° with the axes longitudinal corrugations of the plates and that the deformation zones plates may be constituted by at least one transverse corrugation.

Le nombre de zones de déformation suivant la longueur de la tôle peut être quelconque et déterminé en fonction de la longueur totale des plaques de l'échangeur thermique et de la largeur et du nombre d'ondulations transversales des zones de déformation.The number of deformation zones according to the length of the sheet can be any and determined according to the total length of the plates the heat exchanger and the width and number of ripples transversal deformation zones.

La distance entre les zones de déformation, dans la direction longitudinale, peut être constante sur toute la longueur des plaques d'échangeur de chaleur ou, au contraire, variable.The distance between the deformation zones, in the longitudinal direction, can be constant over the entire length of the heat exchanger plates heat or, conversely, variable.

Dans tous les cas, des calculs de déformation permettent de déterminer la solution optimale quant au nombre de zones de déformation et la distance entre ces zones, en fonction de la longueur totale de la plaque de l'échangeur thermique et des températures des fluides circulant au contact des plaques de l'échangeur.In all cases, deformation calculations make it possible to determine the optimal solution as to the number of deformation zones and the distance between these areas, depending on the total length of the plate the heat exchanger and the temperatures of the fluids flowing on contact plates of the exchanger.

L'invention peut s'appliquer à de nombreux échangeurs thermiques à plaques utilisés dans l'industrie.The invention can be applied to many heat exchangers in plates used in the industry.

Claims (10)

Plaque d'un échangeur thermique constitué par un empilement de plaques (1, 1a, 1b, 1c) comportant chacune une zone centrale dans laquelle la plaque présente des premières ondulations (3) adjacentes dirigées de manière générale suivant un axe d'alignement (4) dans la direction longitudinale de la plaque et comportant des tronçons successifs sensiblement rectilignes et obliques, ayant une inclinaison successivement dans un premier sens et dans un second sens par rapport à leur axe d'alignement longitudinal, caractérisée par le fait qu'elle comporte de plus au moins un ensemble de tronçons successifs de secondes ondulations (5) s'étendant suivant un axe d'alignement de direction générale transversale disposés angulairement ou alignés, recoupant l'ensemble des axes longitudinaux (4) suivant lesquels sont disposées les premières ondulations (3), l'axe d'alignement transversal (6) des tronçons sensiblement rectilignes des secondes ondulations (5) faisant un angle compris entre 45° et 90° avec les axes longitudinaux (4) des premières ondulations (3).Plate of a heat exchanger constituted by a stack of plates (1, 1a, 1b, 1c) each comprising a central zone in which the plate has first adjacent corrugations (3) generally oriented along an alignment axis (4 ) in the longitudinal direction of the plate and having successive substantially rectilinear and oblique sections, having successively inclination in a first direction and in a second direction with respect to their longitudinal alignment axis, characterized in that it comprises at least one set of successive sections of second undulations (5) extending along a transverse general direction alignment axis arranged angularly or in alignment, intersecting all of the longitudinal axes (4) along which the first undulations are arranged ( 3), the transverse alignment axis (6) of substantially rectilinear sections of the second undulations (5) forming an angle s between 45 ° and 90 ° with the longitudinal axes (4) of the first undulations (3). Plaque d'échangeur thermique suivant la revendication 1, caractérisée par le fait que les secondes ondulations (5) de direction générale transversale recoupent les premières ondulations (3) dans des zones de tronçons rectilignes des premières ondulations (3) situées entre les extrémités des tronçons.Heat exchanger plate according to Claim 1, characterized in that the second transverse directional corrugations (5) intersect the first corrugations (3) in regions of rectilinear sections of the first corrugations (3) situated between the ends of the sections. . Plaque d'échangeur thermique suivant la revendication 1, caractérisée par le fait que les secondes ondulations (5) recoupent les premières ondulations (3) suivant des zones de jonction entre les tronçons successifs des premières ondulations (3).Heat exchanger plate according to Claim 1, characterized in that the second corrugations (5) intersect the first corrugations (3) along junction zones between the successive sections of the first corrugations (3). Plaque d'échangeur thermique suivant l'une quelconque des revendications 1 à 3, caractérisée par le fait que les secondes ondulations (5) sont discontinues et comportent différentes parties successives dans la direction transversale séparées par des zones (9) dans lesquelles la plaque d'échangeur thermique (1) ne comporte pas de secondes ondulations (5).Heat exchanger plate according to one of Claims 1 to 3, characterized in that the second corrugations (5) are discontinuous and comprise different successive parts in the transverse direction separated by zones (9) in which the plate heat exchanger (1) has no second undulations (5). Plaque d'échangeur thermique suivant l'une quelconque des revendications 1 à 4, caractérisée par le fait qu'elle comporte au moins deux zones de déformation (8, 8') constituées chacune d'au moins un ensemble de tronçons de secondes ondulations (5).Heat exchanger plate according to any one of claims 1 to 4, characterized in that it comprises at least two deformation zones (8, 8 ') each consisting of at least one set of sections of second corrugations ( 5). Plaque d'échangeur thermique suivant la revendication 5, caractérisée par le fait que chacune des zones de déformation (8, 8') comporte au moins deux secondes ondulations (5) adjacentes s'étendant suivant la direction transversale de la plaque d'échangeur thermique (1).Heat exchanger plate according to Claim 5, characterized in that each of the deformation regions (8, 8 ') has at least two adjacent second corrugations (5) extending in the transverse direction of the heat exchanger plate (1). Plaque d'échangeur thermique selon l'une quelconque des revendications 5 et 6, caractérisée par le fait que la plaque d'échangeur thermique (1) comporte une pluralité de zones de déformation (8, 8') disposées successivement dans la direction longitudinale de la plaque d'échangeur thermique (1) avec un espacement (L) constant entre deux zones successives de déformation (8, 8').Heat exchanger plate according to any one of claims 5 and 6, characterized in that the heat exchanger plate (1) has a plurality of deformation zones (8, 8 ') successively arranged in the longitudinal direction of the heat exchanger plate (1) with a constant spacing (L) between two successive zones of deformation (8, 8 '). Plaque d'échangeur thermique suivant l'une quelconque des revendications 5 et 6, caractérisée par le fait qu'elle comporte une pluralité de zones de déformation (8, 8') réparties suivant la direction longitudinale de la plaque d'échangeur thermique (1), de manière que les zones de déformation successives (8, 8') soient séparées dans la direction longitudinale par une distance (A, B, C) variable suivant la longueur de la plaque d'échangeur thermique (1).Heat exchanger plate according to any one of claims 5 and 6, characterized in that it comprises a plurality of deformation zones (8, 8 ') distributed in the longitudinal direction of the heat exchanger plate (1 ), so that the successive deformation zones (8, 8 ') are separated in the longitudinal direction by a distance (A, B, C) variable along the length of the heat exchanger plate (1). Faisceau d'un échangeur thermique constitué par un empilement de plaques suivant l'une quelconque des revendications 1 à 8.Beam of a heat exchanger constituted by a stack plates according to any one of claims 1 to 8. Faisceau d'échangeur thermique suivant la revendication 9, caractérisé par le fait que chacune des plaques (1, 1a, 1b, 1c) du faisceau de l'échangeur thermique comporte au moins deux zones de déformation (8a, 8b, 8c) disposées dans des positions telles que, suivant la longueur de deux plaques successives de l'empilement, les zones de déformation (8a, 8c, 8b) ne soient pas superposées dans l'empilement de plaques (1a, 1b, 1c) de l'ensemble de plaques.Heat exchanger bundle according to Claim 9, characterized in that each of the plates (1, 1a, 1b, 1c) of the heat exchanger bundle has at least two deformation zones (8a, 8b, 8c) arranged in positions such that, following the length of two successive plates of the stack, the deformation zones (8a, 8c, 8b) are not superimposed in the stack of plates (1a, 1b, 1c) of the set of plates.
EP03292594A 2002-12-05 2003-10-17 Plate for heat exchanger and plate heat exchanger Expired - Lifetime EP1426722B1 (en)

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FR0215373A FR2848292B1 (en) 2002-12-05 2002-12-05 THERMAL EXCHANGER PLATE AND PLATE HEAT EXCHANGER

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1931931A4 (en) * 2005-08-26 2010-04-21 Swep Int Ab TERMINAL PLATE FOR A PLATE HEAT EXCHANGER
US8166666B2 (en) 2005-07-22 2012-05-01 Swep International Ab Compact gas dryer and method for manufacturing the same
EP2068108A4 (en) * 2006-09-28 2013-04-03 Sanyo Electric Co Heat exchanger and method for manufacturing same
CN110044954A (en) * 2018-01-17 2019-07-23 三菱日立电力系统株式会社 Strain correction method, strain correction support system and the revision program of heat transfer face plate

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006125767A (en) * 2004-10-29 2006-05-18 Tokyo Institute Of Technology Heat exchanger
DE102006003317B4 (en) 2006-01-23 2008-10-02 Alstom Technology Ltd. Tube bundle heat exchanger
US9557119B2 (en) 2009-05-08 2017-01-31 Arvos Inc. Heat transfer sheet for rotary regenerative heat exchanger
US9644899B2 (en) * 2011-06-01 2017-05-09 Arvos, Inc. Heating element undulation patterns
US9200853B2 (en) 2012-08-23 2015-12-01 Arvos Technology Limited Heat transfer assembly for rotary regenerative preheater
PL3047225T3 (en) * 2013-09-19 2019-04-30 Howden Uk Ltd Heat exchange element profile with enhanced cleanability features
DE102013220313B4 (en) * 2013-10-08 2023-02-09 Mahle International Gmbh Stacked disc heat exchanger
US10175006B2 (en) 2013-11-25 2019-01-08 Arvos Ljungstrom Llc Heat transfer elements for a closed channel rotary regenerative air preheater
US10094626B2 (en) * 2015-10-07 2018-10-09 Arvos Ljungstrom Llc Alternating notch configuration for spacing heat transfer sheets
JP6407454B2 (en) * 2016-01-13 2018-10-17 株式会社日阪製作所 Plate heat exchanger
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB521285A (en) * 1937-11-15 1940-05-16 Martin Larsen Improvements in or relating to plate heat exchanging apparatus
SU1083061A1 (en) * 1983-02-17 1984-03-30 Всесоюзный Научно-Исследовательский Институт Комплексных Проблем Машиностроения Для Животноводства И Кормопроизводства Plant-type heat exchanger package
DE3301211A1 (en) * 1983-01-15 1984-07-26 Funke Wärmeaustauscher Apparatebau KG, 3212 Gronau Plate heat exchanger
WO1994019657A1 (en) * 1993-02-19 1994-09-01 Alfa Laval Thermal Ab A plate heat exchanger
EP1191297A2 (en) * 2000-09-23 2002-03-27 Smiths Group plc Plate heat exchanger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339542A (en) * 1970-03-20 1973-12-05 Apv Co Ltd Plate heat exchangers
SE458805B (en) * 1985-06-06 1989-05-08 Reheat Ab PLATE HEAT EXCHANGER, EVERY PLATE IS DIVIDED IN THE FOUR AREAS WITH SINCE BETWEEN DIFFERENT DIRECTIONS ON THE CORRUGATIONS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB521285A (en) * 1937-11-15 1940-05-16 Martin Larsen Improvements in or relating to plate heat exchanging apparatus
DE3301211A1 (en) * 1983-01-15 1984-07-26 Funke Wärmeaustauscher Apparatebau KG, 3212 Gronau Plate heat exchanger
SU1083061A1 (en) * 1983-02-17 1984-03-30 Всесоюзный Научно-Исследовательский Институт Комплексных Проблем Машиностроения Для Животноводства И Кормопроизводства Plant-type heat exchanger package
WO1994019657A1 (en) * 1993-02-19 1994-09-01 Alfa Laval Thermal Ab A plate heat exchanger
EP1191297A2 (en) * 2000-09-23 2002-03-27 Smiths Group plc Plate heat exchanger

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8166666B2 (en) 2005-07-22 2012-05-01 Swep International Ab Compact gas dryer and method for manufacturing the same
EP1931931A4 (en) * 2005-08-26 2010-04-21 Swep Int Ab TERMINAL PLATE FOR A PLATE HEAT EXCHANGER
AU2006282087B2 (en) * 2005-08-26 2012-06-28 Swep International Ab End plate for plate heat exchanger
US8684071B2 (en) 2005-08-26 2014-04-01 Swep International Ab End plate for plate heat exchanger
EP2068108A4 (en) * 2006-09-28 2013-04-03 Sanyo Electric Co Heat exchanger and method for manufacturing same
CN110044954A (en) * 2018-01-17 2019-07-23 三菱日立电力系统株式会社 Strain correction method, strain correction support system and the revision program of heat transfer face plate
CN110044954B (en) * 2018-01-17 2022-03-08 三菱动力株式会社 Strain correction method for heat transfer panel, strain correction support system, and storage medium

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EP1426722B1 (en) 2006-01-18
FR2848292A1 (en) 2004-06-11
FR2848292B1 (en) 2005-03-04
JP2004184075A (en) 2004-07-02
US20040188074A1 (en) 2004-09-30
ATE316235T1 (en) 2006-02-15
DE60303276D1 (en) 2006-04-06
US7044206B2 (en) 2006-05-16
DE60303276T2 (en) 2006-07-20

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