WO2012059683A1 - Heat exchanger having welded plates, and plate forming a component of such a heat exchanger - Google Patents
Heat exchanger having welded plates, and plate forming a component of such a heat exchanger Download PDFInfo
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- WO2012059683A1 WO2012059683A1 PCT/FR2011/052552 FR2011052552W WO2012059683A1 WO 2012059683 A1 WO2012059683 A1 WO 2012059683A1 FR 2011052552 W FR2011052552 W FR 2011052552W WO 2012059683 A1 WO2012059683 A1 WO 2012059683A1
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- bosses
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- ribs
- plates
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
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- 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
Definitions
- the present invention relates to a welded plate heat exchanger, for performing a heat exchange between a first fluid and a second fluid flowing between the plates of the exchanger.
- This invention also relates to the plates constituting such a heat exchanger.
- the invention relates to a heat exchanger which comprises previously stamped metal plates, assembled two by two by welding on two opposite sides and thus forming stacked modular elements, the set of plates together forming an exchange block of parallelepipedic general shape.
- corrugated plate heat exchangers also called “corrugated” plates
- plate-type heat exchangers linked by struts also called “studded” plates
- padded plate heat exchangers these can be considered as a variant of the plate-type exchangers connected by spacers.
- each plate of a modular element has parallel ribs, giving this plate a corrugated profile.
- the ribs of a plate of the modular element have a direction different from that of the ribs of the other plate of the same modular element.
- the plates In plate-type heat exchangers connected by spacers, the plates have spacers arranged on their extent, in a square or triangular-based pattern. Thus, during the stacking of such plates, one obtains fluid circuits whose thickness corresponds to the distance between consecutive plates, itself determined by the height of said spacers.
- the padded plate heat exchangers comprise, on the extent of their plates, bosses arranged in a regular pattern. When assembling two plates arranged in opposite directions, the bosses of one plate come into contact with the bosses of the other plate, to form spacers connecting these two plates and fixing their spacing, the corresponding bosses of the two plates being welded together.
- European patent EP 0639258 B1 discloses such an embodiment of padded plate heat exchanger, with frustoconical cup-shaped bosses, flat bottom, obtained by stamping.
- the padded plates have the advantage of creating, for one of the fluids, a pressure-resistant circuit.
- the embossed bosses generate in the flow of fluid between the two plates turbulence quite correct, and thus provide performance close to that of the ribbed plates.
- the circuit for the second fluid delimited between the modular elements formed by two plates joined by their bosses, provides a perfectly free passage and can therefore be very advantageously used for highly charged fluids.
- this circuit has the disadvantage of having a thermal performance close to that of a flat tube, so relatively average.
- the quilted plate heat exchangers thus have superior performance to traditional tubular heat exchangers, but significantly lower than the ribbed plate heat exchangers.
- the present invention aims to provide a welded plate heat exchanger which combines the advantages of the various categories of exchangers mentioned above, while avoiding their disadvantages, and thus the object of the invention is to create a heat exchanger which has a high efficiency. thermal, while maintaining the ability to easily clean its internal channels, this heat exchanger to be otherwise resistant to pressure and be conveniently and conveniently manufactured and assembled.
- the invention also aims to provide a plate for the formation of such an exchanger.
- the subject of the invention is a welded plate heat exchanger, comprising metal plates, previously stamped, assembled two by two by welding on two opposite sides and thus forming stacked modular elements defining two independent circuits, respectively for one first fluid and for a second fluid, adjacent plates further having contact points distributed over the extent of these plates, the heat exchanger being essentially characterized by the fact that the plates comprise, on their extent, a part of the parallel ribs giving them a corrugated profile, and secondly bosses whose vertices lie in a plane containing the bases or the vertices of the ribs, two adjacent plates having ribs of different directions so that these two plates are in contact at the same time by the points of intersection of the vertices of their respective ribs and p ar the vertices of their respective respective bosses, the vertices of the bosses of a plate being welded to the corresponding bosses tops of the other plate.
- the bosses of each plate of the exchanger have vertices of flat shape, located in the plane containing the bases or the vertices of the ribs of this plate.
- bosses are distributed over the extent of each plate of the exchanger, in a predefined pattern and with a more or less dense distribution. These bosses can, in particular, be aligned with certain ribs of each plate of the exchanger, and present themselves in this case as local interruptions, regularly spaced, of these ribs. For example, bosses are thus formed on one rib on two of each plate of the exchanger. Viewed in the direction of the ribs, the bosses may have a staggered arrangement, the bosses formed on a rib being offset, in this direction, relative to the bosses formed on the next rib encountered with bosses.
- the two plates of a modular element must also be welded together on two opposite sides.
- the plates have, for this purpose, respective edges welded to each other, edges which are either located in the plane of the tops of the bosses, or bent at right angles to this plane.
- a heat exchanger thus made combines the particularities and advantages of the ribbed plate heat exchangers and padded plate heat exchangers.
- the exchanger according to the invention creates high turbulence as a traditional ribbed plate heat exchanger, while having excellent resistance to pressure due to the welded connection made between the plates, over the extent thereof .
- at least one fluid circuit of the exchanger is made very resistant to pressure, and therefore the effects of inflating the channels and the risk of fatigue breakage are avoided; this eliminates the limits to which traditional plate heat exchangers are subjected.
- the ribbed and bossed plates provide an excellent compromise between the simply ribbed plates on the one hand, and the quilted plates on the other hand, by combining the pressure resistance to one of the fluid circuits, the free access for cleaning the other fluid circuit and a very high thermal efficiency.
- each boss located on a rib has a flat portion of square or rectangular shape, located at the base of the rib, and two opposing facets, generally triangular, located in inclined planes and joining the top of the rib.
- the invention also relates to a metal plate specially designed for the constitution of a welded plate heat exchanger, as defined above, this plate having, on its extent, on the one hand parallel ribs conferring a corrugated profile, and secondly bosses whose apex is in a plane containing the bases or the vertices of the ribs, the vertices of the bosses of the plate being provided to be welded to the tops of the bosses of another similar plate .
- the bosses of the plate have vertices of flat shape, located in the plane containing the bases or the vertices of the ribs of this plate, which facilitates their welding on the bosses of another plate.
- the bosses of the plate are aligned with certain ribs of this plate, said bosses being local interruptions, regularly spaced, of these ribs.
- the bosses can thus be formed on one rib on two of the plate, which then has an alternation of continuous ribs and ribs interrupted by bosses.
- the bosses thereof may have a staggered arrangement, the bosses formed on a rib being offset, in this direction, relative to the bosses formed on the next rib encountered provided with bosses.
- Figure 1 is a perspective view showing two heat exchanger plates according to the invention matched, before assembly;
- Figure 2 is a perspective view of the modular element, resulting from the assembly of the two plates of Figure 1;
- Figure 3 is a perspective view showing two consecutive modular elements, in a first heat exchanger configuration
- Figure 4 is a perspective view showing consecutive modular elements, in another heat exchanger configuration
- Figure 5 is a perspective view showing, as a whole, a heat exchanger according to the present invention.
- FIG. 1 shows two metal plates 1 and 2, of generally square shape, intended to be assembled together to form an element.
- modular 3 itself shown in Figure 2, which is intended to be stacked with similar elements to form a parallelepiped exchange block.
- the plate 1 here described primarily, has on its extent ribs 4 and 5 parallel to each other and a diagonal direction of the plate 1, so that it has a general wave profile.
- a rib 4 out of two is a continuous rib from one end to the other.
- the continuous ribs 4 alternate with ribs 5 which are interrupted locally, at regular intervals, by bosses 6 whose vertices 7 are situated in a plane containing the bases of the ribs 4 and 5.
- the set of bosses 6 has a provision in FIG. staggered, that is to say that the bosses 6 of a rib 5 are offset (in the longitudinal direction of the ribs) relative to the bosses 7 of the nearest ribs 5, the offset being equal to a "half-step ".
- each boss 6 has a flat vertex 7, of square or rectangular shape, and two opposite facets 8 and 9, of triangular shape and located in inclined planes, the inclination of one of the facets 8 being opposite the inclination of the other facet 9.
- the base of each facet 8 or 9 triangular is in the plane of the vertex 7 of the boss 6, while the tip of this facet is at the top of the corresponding rib 5.
- the other plate 2 has a configuration similar to that of the plate 1.
- the two plates 1 and 2 each have two flat and parallel first edges 10 and 1 1, situated in the plane of the vertices 7 of their respective bosses 6.
- Each of the two plates 1 and 2 also has two other edges 12 and 13, parallel to each other but perpendicular to the preceding edges 10 and 11, these other edges 12 and 13 having an offset zone, that is to say located at the from the base of the bosses 6.
- the two plates 1 and 2 are arranged so that:
- the two plates 1 and 2 being close to one another, they are welded together along their edges 10 and 1 1, and at the vertices 7 of their respective bosses 6 which are brought into contact.
- the modular element 3 is then obtained in which the two plates 1 and 2 also come into contact at the crossing points of their ribs 4 and 5 - see FIG. 2.
- the offset zones of these edges lead to the formation of elongate louvers 14, allowing on one side the inlet of a fluid and on the other side the exit of this fluid.
- FIGS 3 to 5 illustrate stacking modes of modular elements 3 thus formed for the formation of an exchange block.
- the modular elements 3 are spaced from each other. These modular elements 3, traversed by a first fluid, are thus separated from each other by completely free spaces 15, in which circulates a second fluid. The spacing and the maintenance of the modular elements 3 is ensured by the engagement of their angles, at the junction of the edges 10 to 13, in "combs" 16 provided with parallel slots 17 spaced appropriately.
- the modular elements 3 here advantageously comprise side panels 18 bent at right angles, which laterally close (on two opposite sides) the free spaces 15.
- the exchange block thus formed, is itself placed inside a framework or a frame, comprising two parallel square plates 19 and 20 connected by four corner posts 21, as shown in FIG. 5, the side faces of this frame being closed by unrepresented panels or doors.
- the edges of the plates 1 and 2 may comprise, on two opposite sides, respective edges folded at right angles and welded to each other, to constitute each modular element 3.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a heat exchanger which includes prestamped metal plates (1, 2) assembled, by welding, two-by-two on two opposite sides thereof so as to form stacked modular elements defining two separate circuits for two fluids, respectively. The plates comprise, on the broad side thereof, parallel ribs (4, 5) giving said plates a corrugated profile, as well as bosses (6), the tops (7) of which are located in the plane that contains the bases or tops of the ribs. The tops (7) of the bosses (6) of one plate (1) are welded to the tops of the corresponding bosses of another plate (2). The heat exchanger thus combines the features and advantages of ribbed plates and clad plates. The invention also relates to a plate (1, 2) forming a component of such a heat exchanger.
Description
Echangeur de chaleur à plaques soudées, et plaque constitutive d'un tel échangeur Heat exchanger with welded plates, and plate constituting such an exchanger
La présente invention concerne un échangeur de chaleur à plaques soudées, pour la réalisation d'un échange de chaleur entre un premier fluide et un second fluide circulant entre les plaques de l'échangeur. Cette invention porte aussi sur les plaques constitutives d'un tel échangeur de chaleur. The present invention relates to a welded plate heat exchanger, for performing a heat exchange between a first fluid and a second fluid flowing between the plates of the exchanger. This invention also relates to the plates constituting such a heat exchanger.
Plus particulièrement, l'invention concerne un échangeur de chaleur qui comprend des plaques métalliques préalablement embouties, assemblées deux à deux par soudure sur deux côtés opposés et formant ainsi des éléments modulaires empilés, l'ensemble des plaques ainsi réunies formant un bloc d'échange de forme générale parallélépipédique. Les espaces délimités entre les plaques appartenant à une même paire, autrement dit à un même élément modulaire, définissent un circuit pour le premier fluide. Les espaces qui subsistent entre les paires de plaques consécutives, autrement dit entre deux éléments modulaires, définissent le circuit pour le second fluide. More particularly, the invention relates to a heat exchanger which comprises previously stamped metal plates, assembled two by two by welding on two opposite sides and thus forming stacked modular elements, the set of plates together forming an exchange block of parallelepipedic general shape. The spaces delimited between the plates belonging to the same pair, in other words to the same modular element, define a circuit for the first fluid. The spaces that remain between the pairs of consecutive plates, in other words between two modular elements, define the circuit for the second fluid.
Des réalisations d'échangeurs de chaleur à plaques soudées de ce type, de structure compacte, sont déjà connues notamment par le brevet européen EP 0639258 B1 du même inventeur, ainsi que le brevet français FR 2901016 B1 (ou son équivalent la demande internationale WO 2007/132083 A1 ) également du même inventeur et constituant un perfectionnement au précédent brevet. Achievements of heat exchangers welded plates of this type, compact structure, are already known in particular by the European patent EP 0639258 B1 the same inventor, as well as the French patent FR 2901016 B1 (or its equivalent the international application WO 2007 / 132083 A1) also from the same inventor and constituting an improvement to the previous patent.
Pour ce type d'échangeurs de chaleur, on distingue actuellement plusieurs catégories, selon la configuration des plaques d'une même paire. Chaque technique apporte des avantages soit en termes de maintenance, essentiellement pour l'accessibilité en vue du nettoyage mécanique des canaux de circulation de fluide ménagés entre les plaques adjacentes, soit en termes de performances thermiques, en fonction de la création de turbulences et de l'intensification des échanges de chaleur dans les canaux de circulation de fluide. For this type of heat exchanger, there are currently several categories, depending on the configuration of the plates of the same pair. Each technique provides advantages in terms of maintenance, mainly for accessibility for the mechanical cleaning of the fluid circulation channels formed between the adjacent plates, or in terms of thermal performance, depending on the creation of turbulence and the intensification of heat exchanges in the fluid circulation channels.
Les principales catégories existantes d'échangeurs de chaleur, du type ici considéré, sont les échangeurs à plaques nervurées, aussi dites plaques « corruguées », les échangeurs à plaques liées par des entretoises aussi dites plaques « studdées », et les échangeurs à plaques matelassées, ces derniers peuvent être considérés comme une variante des échangeurs à plaques liées par des entretoises. The main existing categories of heat exchangers, of the type considered here, are the corrugated plate heat exchangers, also called "corrugated" plates, the plate-type heat exchangers linked by struts, also called "studded" plates, and the padded plate heat exchangers. these can be considered as a variant of the plate-type exchangers connected by spacers.
Dans les échangeurs à plaques nervurées, chaque plaque d'un élément modulaire présente des nervures parallèles, conférant à cette plaque un profil ondulé. Les nervures d'une plaque de l'élément modulaire possèdent une
direction différente de celle des nervures de l'autre plaque du même élément modulaire. Lors du rapprochement des deux plaques, sont ainsi créés de nombreux points de contact d'une plaque avec l'autre sur l'étendue de ces plaques, ce qui permet d'obtenir un écartement constant entre les deux plaques. De plus, les nervures forment des ondulations qui s'opposent à l'écoulement du fluide entre les deux plaques et qui génèrent de fortes turbulences dans cet écoulement. Les échangeurs ainsi constitués possèdent donc une grande efficacité. Cependant, ils présentent l'inconvénient d'avoir des sections de passage relativement étroites pour le fluide et, compte tenu des nombreux points de contact entre les deux plaques, de comporter de grands risques de colmatage ou d'encrassement, dans certaines applications et selon les fluides impliqués. In the ribbed plate heat exchangers, each plate of a modular element has parallel ribs, giving this plate a corrugated profile. The ribs of a plate of the modular element have a direction different from that of the ribs of the other plate of the same modular element. When the two plates are brought together, numerous points of contact of one plate with the other are created on the extent of these plates, which makes it possible to obtain a constant spacing between the two plates. In addition, the ribs form undulations which oppose the flow of fluid between the two plates and which generate strong turbulence in this flow. The exchangers thus formed thus have a high efficiency. However, they have the disadvantage of having relatively narrow passage sections for the fluid and, given the many contact points between the two plates, to have a high risk of clogging or fouling, in certain applications and according to the fluids involved.
Un exemple d'échangeur de chaleur à plaques nervurées est donné par la demande de brevet français FR 2562997 A1 . An example of a plate heat exchanger is given by the French patent application FR 2562997 A1.
Dans les échangeurs à plaques liées par des entretoises, les plaques présentent des entretoises disposées sur leur étendue, selon une trame à base carrée ou triangulaire. Ainsi, lors de l'empilage de telles plaques, on obtient des circuits de fluide dont l'épaisseur correspond à l'écartement entre plaques consécutives, lui-même déterminé par la hauteur desdites entretoises. In plate-type heat exchangers connected by spacers, the plates have spacers arranged on their extent, in a square or triangular-based pattern. Thus, during the stacking of such plates, one obtains fluid circuits whose thickness corresponds to the distance between consecutive plates, itself determined by the height of said spacers.
De tels échangeurs sont d'un nettoyage plus facile, et ne comportent pratiquement pas de risque de colmatage. Par contre, ils restent relativement onéreux car ils doivent mettre en œuvre des plaques d'épaisseur importante, ainsi que de nombreuses entretoises pour assurer la résistance mécanique des éléments modulaires. Par ailleurs, leur performance thermique est bien moindre que celle des échangeurs à plaques nervurées. Such exchangers are easier to clean, and have virtually no risk of clogging. By cons, they remain relatively expensive because they must implement plates of significant thickness, as well as many spacers to ensure the mechanical strength of the modular elements. In addition, their thermal performance is much lower than that of the plate heat exchangers.
Les échangeurs à plaques matelassées comportent, sur l'étendue de leurs plaques, des bossages disposés selon une trame régulière. Lors de l'assemblage de deux plaques disposées en sens opposés, les bossages d'une plaque viennent au contact des bossages de l'autre plaque, pour former des entretoises reliant ces deux plaques et fixant leur écartement, les bossages correspondants des deux plaques étant soudés entre eux. The padded plate heat exchangers comprise, on the extent of their plates, bosses arranged in a regular pattern. When assembling two plates arranged in opposite directions, the bosses of one plate come into contact with the bosses of the other plate, to form spacers connecting these two plates and fixing their spacing, the corresponding bosses of the two plates being welded together.
Le brevet européen EP 0639258 B1 divulgue une telle réalisation d'échangeur de chaleur à plaques matelassées, avec des bossages en forme de cuvettes tronconiques, à fond plat, obtenues par emboutissage. European patent EP 0639258 B1 discloses such an embodiment of padded plate heat exchanger, with frustoconical cup-shaped bosses, flat bottom, obtained by stamping.
Grâce à la liaison par soudure de leurs bossages, les plaques matelassées présentent l'avantage de créer, pour l'un des fluides, un circuit résistant à la pression. De plus, les bossages emboutis génèrent dans l'écoulement du fluide entre les deux plaques une turbulence tout-à-fait correcte, et procurent ainsi des performances proches de celles des plaques nervurées.
Dans le cas de ces échangeurs à plaques matelassées, le circuit pour le second fluide, délimité entre les éléments modulaires formés par deux plaques réunies par leurs bossages, offre un passage parfaitement libre et peut donc être très avantageusement utilisé pour des fluides très chargés. Par contre, ce circuit présente l'inconvénient d'avoir une performance thermique proche de celle d'un tube plat, donc relativement moyenne. Les échangeurs à plaques matelassées possèdent ainsi des performances supérieures aux échangeurs tubulaires traditionnels, mais notablement inférieures aux échangeurs à plaques nervurées. Thanks to the welded connection of their bosses, the padded plates have the advantage of creating, for one of the fluids, a pressure-resistant circuit. In addition, the embossed bosses generate in the flow of fluid between the two plates turbulence quite correct, and thus provide performance close to that of the ribbed plates. In the case of these quilted plate heat exchangers, the circuit for the second fluid, delimited between the modular elements formed by two plates joined by their bosses, provides a perfectly free passage and can therefore be very advantageously used for highly charged fluids. By cons, this circuit has the disadvantage of having a thermal performance close to that of a flat tube, so relatively average. The quilted plate heat exchangers thus have superior performance to traditional tubular heat exchangers, but significantly lower than the ribbed plate heat exchangers.
La présente invention vise à fournir un échangeur de chaleur à plaques soudées qui réunisse les avantages des diverses catégories d'échangeurs précédemment évoquées, tout en évitant leurs inconvénients, et ainsi le but de l'invention est de créer un échangeur qui possède une grande efficacité thermique, tout en conservant la possibilité de nettoyer aisément ses canaux internes, cet échangeur de chaleur devant par ailleurs être résistant à la pression et pouvoir être fabriqué et assemblé de manière commode et économique. L'invention a aussi pour but de fournir une plaque pour la constitution d'un tel échangeur. The present invention aims to provide a welded plate heat exchanger which combines the advantages of the various categories of exchangers mentioned above, while avoiding their disadvantages, and thus the object of the invention is to create a heat exchanger which has a high efficiency. thermal, while maintaining the ability to easily clean its internal channels, this heat exchanger to be otherwise resistant to pressure and be conveniently and conveniently manufactured and assembled. The invention also aims to provide a plate for the formation of such an exchanger.
A cet effet l'invention a pour objet un échangeur de chaleur à plaques soudées, comprenant des plaques métalliques, préalablement embouties, assemblées deux à deux par soudure sur deux côtés opposés et formant ainsi des éléments modulaires empilés définissant deux circuits indépendants, respectivement pour un premier fluide et pour un second fluide, des plaques adjacentes présentant en outre des points de contact répartis sur l'étendue de ces plaques, l'échangeur de chaleur étant essentiellement caractérisé par le fait que les plaques comportent, sur leur étendue, d'une part des nervures parallèles leur conférant un profil ondulé, et d'autre part des bossages dont les sommets de situent dans un plan contenant les bases ou les sommets des nervures, deux plaques adjacentes possédant des nervures de directions différentes de telle sorte que ces deux plaques soient en contact à la fois par les points d'intersection des sommets de leurs nervures respectives et par les sommets de leurs bossages respectifs correspondants, les sommets des bossages d'une plaque étant soudés aux sommets des bossages correspondants de l'autre plaque. To this end, the subject of the invention is a welded plate heat exchanger, comprising metal plates, previously stamped, assembled two by two by welding on two opposite sides and thus forming stacked modular elements defining two independent circuits, respectively for one first fluid and for a second fluid, adjacent plates further having contact points distributed over the extent of these plates, the heat exchanger being essentially characterized by the fact that the plates comprise, on their extent, a part of the parallel ribs giving them a corrugated profile, and secondly bosses whose vertices lie in a plane containing the bases or the vertices of the ribs, two adjacent plates having ribs of different directions so that these two plates are in contact at the same time by the points of intersection of the vertices of their respective ribs and p ar the vertices of their respective respective bosses, the vertices of the bosses of a plate being welded to the corresponding bosses tops of the other plate.
Dans une forme de réalisation préférée de l'invention, les bossages de chaque plaque de l'échangeur présentent des sommets de forme plate, situés dans le plan contenant les bases ou les sommets des nervures de cette plaque. In a preferred embodiment of the invention, the bosses of each plate of the exchanger have vertices of flat shape, located in the plane containing the bases or the vertices of the ribs of this plate.
Les bossages sont répartis, sur l'étendue de chaque plaque de l'échangeur, selon un motif prédéfini et avec une répartition plus ou moins dense. Ces bossages peuvent, en particulier, être alignés avec certaines nervures de
chaque plaque de l'échangeur, et se présenter dans ce cas comme des interruptions locales, régulièrement espacées, de ces nervures. Par exemple, des bossages sont ainsi formés sur une nervure sur deux de chaque plaque de l'échangeur. Vus dans la direction des nervures, les bossages peuvent présenter une disposition en quinconce, les bossages formés sur une nervure étant décalés, suivant cette direction, par rapport aux bossages formés sur la prochaine nervure rencontrée pourvue de bossages. The bosses are distributed over the extent of each plate of the exchanger, in a predefined pattern and with a more or less dense distribution. These bosses can, in particular, be aligned with certain ribs of each plate of the exchanger, and present themselves in this case as local interruptions, regularly spaced, of these ribs. For example, bosses are thus formed on one rib on two of each plate of the exchanger. Viewed in the direction of the ribs, the bosses may have a staggered arrangement, the bosses formed on a rib being offset, in this direction, relative to the bosses formed on the next rib encountered with bosses.
Les deux plaques d'un élément modulaire doivent aussi être assemblées par soudure, sur deux côtés opposés. Les plaques comportent, à cet effet, des bords respectifs soudés l'un à l'autre, bords qui sont soit situés dans le plan des sommets des bossages, soit pliés à angle droit par rapport à ce plan. The two plates of a modular element must also be welded together on two opposite sides. The plates have, for this purpose, respective edges welded to each other, edges which are either located in the plane of the tops of the bosses, or bent at right angles to this plane.
Comme on le conçoit, un échangeur de chaleur ainsi réalisé combine les particularités et avantages des échangeurs à plaques nervurées et des échangeurs à plaques matelassées. En particulier, l'échangeur selon l'invention crée de fortes turbulences comme un échangeur à plaques nervurées traditionnelles, tout en présentant une excellente tenue à la pression grâce à la liaison par soudage réalisée entre les plaques, sur l'étendue de celles-ci. Ainsi, au moins un circuit de fluide de l'échangeur est rendu très résistant à la pression, et par conséquent les effets de gonflage des canaux et les risques de casse par fatigue sont évités ; on s'affranchit ainsi des limites auxquelles sont soumis les échangeurs à plaques nervurées traditionnelles. As conceived, a heat exchanger thus made combines the particularities and advantages of the ribbed plate heat exchangers and padded plate heat exchangers. In particular, the exchanger according to the invention creates high turbulence as a traditional ribbed plate heat exchanger, while having excellent resistance to pressure due to the welded connection made between the plates, over the extent thereof . Thus, at least one fluid circuit of the exchanger is made very resistant to pressure, and therefore the effects of inflating the channels and the risk of fatigue breakage are avoided; this eliminates the limits to which traditional plate heat exchangers are subjected.
Si les plaques sont assemblées deux à deux par leurs bossages, on obtient des éléments modulaires entre lesquels est ménagé un canal d'écoulement entièrement libre, d'épaisseur pouvant atteindre par exemple 25mm, permettant la circulation de fluides très chargés, sans risque d'obstruction, tout en conservant l'avantage des plaques nervurées en ce qui concerne la création d'une turbulence. If the plates are assembled in pairs by their bosses, modular elements are obtained between which is formed a completely free flow channel, with a thickness of up to 25 mm, for the circulation of highly charged fluids, without risk of obstruction, while retaining the advantage of ribbed plates with respect to the creation of turbulence.
Pour un fonctionnement de l'échangeur à des pressions moyennes, les plaques nervurées et pourvues de bossages constituent un excellent compromis entre les plaques simplement nervurées d'une part, et les plaques matelassées d'autre part, en associant la résistance à la pression pour l'un des circuits de fluide, l'accès libre pour nettoyage de l'autre circuit de fluide et une efficacité thermique très forte. For operation of the exchanger at medium pressures, the ribbed and bossed plates provide an excellent compromise between the simply ribbed plates on the one hand, and the quilted plates on the other hand, by combining the pressure resistance to one of the fluid circuits, the free access for cleaning the other fluid circuit and a very high thermal efficiency.
De plus, la localisation des bossages sur certaines nervures des plaques limite l'impact de ces bossages sur l'écoulement du fluide, et rend aisée la fabrication des plaques par emboutissage. Dans une configuration particulièrement avantageuse à cet égard, chaque bossage localisé sur une nervure comporte une partie plane de forme carrée ou rectangulaire, située à la
base de la nervure, et deux facettes opposées, d'allure générale triangulaire, situées dans des plans inclinés et rejoignant le sommet de la nervure. In addition, the location of the bosses on certain ribs of the plates limits the impact of these bosses on the flow of the fluid, and makes the manufacture of the plates by stamping. In a particularly advantageous configuration in this respect, each boss located on a rib has a flat portion of square or rectangular shape, located at the base of the rib, and two opposing facets, generally triangular, located in inclined planes and joining the top of the rib.
L'invention a aussi pour objet une plaque métallique spécialement destinée à la constitution d'un échangeur de chaleur à plaques soudées, tel que défini ci-dessus, cette plaque comportant, sur son étendue, d'une part des nervures parallèles lui conférant un profil ondulé, et d'autre part des bossages dont le sommet se situe dans un plan contenant les bases ou les sommets des nervures, les sommets des bossages de la plaque étant prévus pour être soudés sur les sommets des bossages d'une autre plaque similaire. The invention also relates to a metal plate specially designed for the constitution of a welded plate heat exchanger, as defined above, this plate having, on its extent, on the one hand parallel ribs conferring a corrugated profile, and secondly bosses whose apex is in a plane containing the bases or the vertices of the ribs, the vertices of the bosses of the plate being provided to be welded to the tops of the bosses of another similar plate .
De préférence, les bossages de la plaque présentent des sommets de forme plate, situés dans le plan contenant les bases ou les sommets des nervures de cette plaque, ce qui facilite leur soudage sur les bossages d'une autre plaque. Preferably, the bosses of the plate have vertices of flat shape, located in the plane containing the bases or the vertices of the ribs of this plate, which facilitates their welding on the bosses of another plate.
Avantageusement, les bossages de la plaque sont alignés avec certaines nervures de cette plaque, lesdits bossages se présentant comme des interruptions locales, régulièrement espacées, de ces nervures. Les bossages peuvent ainsi être formés sur une nervure sur deux de la plaque, laquelle présente alors une alternance de nervures continues et de nervures interrompues par des bossages. Vus dans la direction des nervures de la plaque, les bossages de celle- ci peuvent présenter une disposition en quinconce, les bossages formés sur une nervure étant décalés, suivant cette direction, par rapport aux bossages formés sur la prochaine nervure rencontrée pourvue de bossages. Advantageously, the bosses of the plate are aligned with certain ribs of this plate, said bosses being local interruptions, regularly spaced, of these ribs. The bosses can thus be formed on one rib on two of the plate, which then has an alternation of continuous ribs and ribs interrupted by bosses. Viewed in the direction of the ribs of the plate, the bosses thereof may have a staggered arrangement, the bosses formed on a rib being offset, in this direction, relative to the bosses formed on the next rib encountered provided with bosses.
De toute façon, l'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemples, des formes d'exécution de cet échangeur de chaleur à plaques soudées et de la plaque constitutive d'un tel échangeur : In any case, the invention will be better understood from the description which follows, with reference to the attached schematic drawing showing, by way of example, embodiments of this welded plate heat exchanger and the constituent plate of such an exchanger:
Figure 1 est une vue en perspective montrant deux plaques d'échangeur de chaleur selon l'invention mises en correspondance, avant assemblage ; Figure 1 is a perspective view showing two heat exchanger plates according to the invention matched, before assembly;
Figure 2 est une vue en perspective de l'élément modulaire, résultant de l'assemblage des deux plaques de la figure 1 ; Figure 2 is a perspective view of the modular element, resulting from the assembly of the two plates of Figure 1;
Figure 3 est une vue en perspective montrant deux éléments modulaires consécutifs, dans une première configuration d'échangeur de chaleur ; Figure 3 is a perspective view showing two consecutive modular elements, in a first heat exchanger configuration;
Figure 4 est une vue en perspective montrant des éléments modulaires consécutifs, dans une autre configuration d'échangeur de chaleur ; Figure 4 is a perspective view showing consecutive modular elements, in another heat exchanger configuration;
Figure 5 est une vue en perspective montrant, dans son ensemble, un échangeur de chaleur conforme à la présente invention. Figure 5 is a perspective view showing, as a whole, a heat exchanger according to the present invention.
La figure 1 montre deux plaques métalliques 1 et 2, de forme générale carrée, prévues pour être assemblées l'une à l'autre pour former un élément
modulaire 3, lui-même montré sur la figure 2, qui est destiné à être empilé avec des éléments similaires en vue de constituer un bloc d'échange parallélépipédique. FIG. 1 shows two metal plates 1 and 2, of generally square shape, intended to be assembled together to form an element. modular 3, itself shown in Figure 2, which is intended to be stacked with similar elements to form a parallelepiped exchange block.
La plaque 1 , ici décrite à titre principal, comporte sur son étendue des nervures 4 et 5 parallèles entre elles et à une direction diagonale de cette plaque 1 , de sorte que celle-ci présente un profil général ondulé. The plate 1, here described primarily, has on its extent ribs 4 and 5 parallel to each other and a diagonal direction of the plate 1, so that it has a general wave profile.
Une nervure 4 sur deux est une nervure continue d'une extrémité à l'autre. Les nervures 4 continues alternent avec des nervures 5 qui sont interrompues localement, à intervalles réguliers, par des bossages 6 dont les sommets 7 se situent dans un plan contenant les bases des nervures 4 et 5. L'ensemble des bossages 6 possède une disposition en quinconce, c'est-à-dire que les bossages 6 d'une nervure 5 sont décalés (dans le sens longitudinal des nervures) par rapport aux bossages 7 des nervures 5 les plus proches, le décalage étant égal à un « demi-pas ». A rib 4 out of two is a continuous rib from one end to the other. The continuous ribs 4 alternate with ribs 5 which are interrupted locally, at regular intervals, by bosses 6 whose vertices 7 are situated in a plane containing the bases of the ribs 4 and 5. The set of bosses 6 has a provision in FIG. staggered, that is to say that the bosses 6 of a rib 5 are offset (in the longitudinal direction of the ribs) relative to the bosses 7 of the nearest ribs 5, the offset being equal to a "half-step ".
Dans le détail, chaque bossage 6 comporte un sommet 7 plat, de forme carrée ou rectangulaire, et deux facettes opposées 8 et 9, d'allure triangulaire et situées dans des plans inclinés, l'inclinaison de l'une des facettes 8 étant inverse de l'inclinaison de l'autre facette 9. La base de chaque facette 8 ou 9 triangulaire se situe dans le plan du sommet 7 du bossage 6, tandis que la pointe de cette facette se situe au sommet de la nervure 5 correspondante. In detail, each boss 6 has a flat vertex 7, of square or rectangular shape, and two opposite facets 8 and 9, of triangular shape and located in inclined planes, the inclination of one of the facets 8 being opposite the inclination of the other facet 9. The base of each facet 8 or 9 triangular is in the plane of the vertex 7 of the boss 6, while the tip of this facet is at the top of the corresponding rib 5.
L'autre plaque 2 possède une configuration analogue à celle de la plaque 1 . The other plate 2 has a configuration similar to that of the plate 1.
Dans l'exemple ici considéré, les deux plaques 1 et 2 possèdent, chacune, deux premiers bords 10 et 1 1 plats et parallèles, situés dans le plan des sommets 7 de leurs bossages 6 respectifs. Chacune des deux plaques 1 et 2 possède aussi deux autres bords 12 et 13, parallèles entre eux mais perpendiculaires aux bords précédents 10 et 1 1 , ces autres bords 12 et 13 présentant une zone décalée, c'est-à-dire située au niveau de la base des bossages 6. In the example considered here, the two plates 1 and 2 each have two flat and parallel first edges 10 and 1 1, situated in the plane of the vertices 7 of their respective bosses 6. Each of the two plates 1 and 2 also has two other edges 12 and 13, parallel to each other but perpendicular to the preceding edges 10 and 11, these other edges 12 and 13 having an offset zone, that is to say located at the from the base of the bosses 6.
Pour leur assemblage, les deux plaques 1 et 2 sont disposées de telle sorte que : For their assembly, the two plates 1 and 2 are arranged so that:
• les nervures 4 et 5 de la plaque 1 soient orientées perpendiculairement aux nervures 4 et 5 de l'autre plaque 2 ; • the ribs 4 and 5 of the plate 1 are oriented perpendicularly to the ribs 4 and 5 of the other plate 2;
• les bords 10 et 1 1 des deux plaques 1 et 2 soient mis en correspondance ; • the edges 10 and 1 1 of the two plates 1 and 2 are matched;
• les autres bords 12 et 13 de ces deux plaques 1 et 2 soient aussi mis en correspondance, avec leurs zones décalées respectives s'écartant l'une de l'autre.
Dans cette disposition relative des deux plaques 1 et 2, les sommets 7 des bossages 6 d'une plaque 1 se trouvent aussi en correspondance avec les sommets 7 des bossages de l'autre plaque 2. The other edges 12 and 13 of these two plates 1 and 2 are also matched, with their respective offset zones apart from each other. In this relative arrangement of the two plates 1 and 2, the vertices 7 of the bosses 6 of a plate 1 are also in correspondence with the vertices 7 of the bosses of the other plate 2.
Les deux plaques 1 et 2 étant rapprochées l'une de l'autre, elles sont soudées entre elles le long de leurs bords 10 et 1 1 , ainsi qu'au niveau des sommets 7 de leurs bossages 6 respectifs qui sont mis en contact. On obtient alors l'élément modulaire 3 dans lequel les deux plaques 1 et 2 viennent aussi en contact aux points de croisement de leurs nervures 4 et 5 -voir figure 2. The two plates 1 and 2 being close to one another, they are welded together along their edges 10 and 1 1, and at the vertices 7 of their respective bosses 6 which are brought into contact. The modular element 3 is then obtained in which the two plates 1 and 2 also come into contact at the crossing points of their ribs 4 and 5 - see FIG. 2.
Sur les deux côtés opposés formés par les bords 12 er 13, les zones décalées de ces bords conduisent à la formation d'ouïes 14 allongées, permettant d'un côté l'entrée d'un fluide et de l'autre côté la sortie de ce fluide. On the two opposite sides formed by the edges 12 and 13, the offset zones of these edges lead to the formation of elongate louvers 14, allowing on one side the inlet of a fluid and on the other side the exit of this fluid.
Les figures 3 à 5 illustrent des modes d'empilage d'éléments modulaires 3 ainsi constitués, pour la constitution d'un bloc d'échange. Figures 3 to 5 illustrate stacking modes of modular elements 3 thus formed for the formation of an exchange block.
Dans le cas de la figure 3, les éléments modulaires 3 sont espacés les uns des autres. Ces éléments modulaires 3, parcourus par un premier fluide, sont ainsi séparés les uns des autres par des espaces entièrement libres 15, dans lesquels circule un second fluide. L'espacement et le maintien des éléments modulaires 3 est assuré par l'engagement de leurs angles, à la jonction des bords 10 à 13, dans des « peignes » 16 pourvus de fentes parallèles 17 judicieusement espacées. In the case of Figure 3, the modular elements 3 are spaced from each other. These modular elements 3, traversed by a first fluid, are thus separated from each other by completely free spaces 15, in which circulates a second fluid. The spacing and the maintenance of the modular elements 3 is ensured by the engagement of their angles, at the junction of the edges 10 to 13, in "combs" 16 provided with parallel slots 17 spaced appropriately.
Sur les bords 12 et 13, les éléments modulaires 3 comportent ici avantageusement des panneaux latéraux 18 pliés à angle droit, qui ferment latéralement (sur deux côtés opposés) les espaces libres 15. On the edges 12 and 13, the modular elements 3 here advantageously comprise side panels 18 bent at right angles, which laterally close (on two opposite sides) the free spaces 15.
Dans le cas de la figure 4, les éléments modulaires 3 sont resserrés, les espaces libres précédemment mentionnées étant supprimés. Les deux circuits de fluide sont dans ce cas délimités par des plaques 1 et 2 adjacentes, venant en contact par leurs nervures 4, 5 et leurs bossages 7. Les panneaux latéraux pliés sont ici supprimés, et les « peignes » 16 présentent des fentes 17 plus rapprochées pour le maintien des éléments modulaires 3. In the case of Figure 4, the modular elements 3 are tightened, the previously mentioned free spaces being removed. The two fluid circuits are in this case delimited by adjacent plates 1 and 2, coming into contact by their ribs 4, 5 and their bosses 7. The folded side panels are here removed, and the "combs" 16 have slots 17 closer together for the maintenance of modular elements 3.
Le bloc d'échange, ainsi constitué, est lui-même placé à l'intérieur d'une ossature ou d'un bâti, comprenant deux plaques carrées parallèles 19 et 20 reliées par quatre poteaux d'angle 21 , comme le montre la figure 5, les faces latérales de ce bâti étant fermées par des panneaux ou des portes non représentés. The exchange block, thus formed, is itself placed inside a framework or a frame, comprising two parallel square plates 19 and 20 connected by four corner posts 21, as shown in FIG. 5, the side faces of this frame being closed by unrepresented panels or doors.
Dans une variante non illustrée, les bords des plaques 1 et 2 peuvent comporter, sur deux côtés opposés, des bords respectifs pliés à angles droit et soudés l'un à l'autre, pour constituer chaque éléments modulaire 3.
Comme il va de soi, et comme il résulte de ce qui précède, l'invention ne se limite pas aux seules formes d'exécution de cet échangeur de chaleur, et de ses plaques constitutives, qui ont été décrites ci-dessus à titre d'exemples ; elle en embrasse, au contraire, toutes les variantes de réalisation et d'application respectant le même principe. C'est ainsi, notamment, que l'on ne s'éloignerait pas du cadre de l'invention : In a variant not shown, the edges of the plates 1 and 2 may comprise, on two opposite sides, respective edges folded at right angles and welded to each other, to constitute each modular element 3. It goes without saying, and as it follows from the above, the invention is not limited to the embodiments of this heat exchanger, and its constituent plates, which have been described above as examples; it embraces, on the contrary, all variants of implementation and application respecting the same principle. It is thus, in particular, that one would not move away from the scope of the invention:
- En modifiant la répartition des bossages ainsi que le détail de leur forme ; - By modifying the distribution of the bosses as well as the detail of their shape;
- En positionnant et réunissant les plaques deux à deux suivant leurs bords par tous moyens, pour constituer les éléments modulaires ; - By positioning and joining the plates two by two along their edges by any means, to form the modular elements;
- En réunissant ces éléments modulaires par tous moyens pour constituer l'échangeur complet.
- By bringing together these modular elements by any means to constitute the complete exchanger.
Claims
REVENDICATIONS
Echangeur de chaleur à plaques soudées, comprenant des plaques métalliques (1 ,2) préalablement embouties, assemblées deux à deux par soudure sur deux côtés opposés (10,1 1 ) et formant ainsi des éléments modulaires (3) empilés définissant deux circuits indépendants, respectivement pour un premier fluide et pour un second fluide, des plaques (1 ,2) adjacentes présentant en outre des points de contact répartis sur l'étendue de ces plaques, caractérisé en ce que les plaques (1 ,2 ) comportent, sur leur étendue, d'une part des nervures (4,5) parallèles leur conférant un profil ondulé, et d'autre part des bossages (6) dont les sommets (7) se situent dans un plan contenant les bases ou les sommets des nervures (4,5), deux plaques adjacentes possédant des nervures (4,5) de directions différentes de telle sorte que ces plaques soient en contact à la fois par les points d'intersection des sommets de leurs nervures respectives et par les sommets (7) de leurs bossages respectifs correspondants, les sommets (7) des bossages (6) d'une plaque étant soudés aux sommets des bossages correspondants de l'autre plaque. Heat exchanger with welded plates, comprising metal plates (1, 2) previously stamped, assembled in pairs by welding on two opposite sides (10, 1) and thus forming stacked modular elements (3) defining two independent circuits, respectively for a first fluid and a second fluid, plates (1, 2) adjacent further having contact points distributed over the extent of these plates, characterized in that the plates (1, 2) comprise, on their extending on the one hand parallel ribs (4,5) conferring on them a corrugated profile, and on the other hand bosses (6) whose vertices (7) lie in a plane containing the bases or the vertices of the ribs ( 4,5), two adjacent plates having ribs (4,5) of different directions so that these plates are in contact at the same time by the points of intersection of the vertices of their respective ribs and by the vertices (7) of their bosses r corresponding peaks, the vertices (7) of the bosses (6) of a plate being welded to the vertices of the corresponding bosses of the other plate.
Echangeur de chaleur selon la revendication 1 , caractérisé en ce que les bossages (6) de chaque plaque (1 ,2) présentent des sommets (7) de forme plate, situés dans le plan contenant les bases ou les sommets des nervures (4,5) de cette plaque (1 ,2). Heat exchanger according to claim 1, characterized in that the bosses (6) of each plate (1, 2) have vertices (7) of flat shape, situated in the plane containing the bases or the vertices of the ribs (4, 5) of this plate (1, 2).
Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que les bossages (6) sont alignés avec certaines nervures (5) de chaque plaque (1 ,2), et se présentent comme des interruptions locales, régulièrement espacées, de ces nervures (5). Heat exchanger according to claim 1 or 2, characterized in that the bosses (6) are aligned with certain ribs (5) of each plate (1, 2), and are local interruptions, regularly spaced, of these ribs (5).
Echangeur de chaleur selon la revendication 3, caractérisé en ce que les bossages (6) sont formés sur une nervure (5) sur deux de chaque plaque (1 ,2). Heat exchanger according to claim 3, characterized in that the bosses (6) are formed on one rib (5) on two of each plate (1, 2).
Echangeur de chaleur selon la revendication 3 ou 4, caractérisé en ce que les bossages (6) présentent une disposition en quinconce, vus dans la direction des nervures (4,5), les bossages (6) formés sur une nervure (5) étant décalés, suivant cette direction, par rapport aux bossages (6) formés sur la prochaine nervure (5) rencontrée pourvue de bossages. Heat exchanger according to claim 3 or 4, characterized in that the bosses (6) have a staggered arrangement, seen in the direction of the ribs (4,5), the bosses (6) formed on a rib (5) being offset, in this direction, relative to the bosses (6) formed on the next rib (5) encountered provided with bosses.
Echangeur de chaleur selon l'ensemble des revendications 2 et 3, caractérisé en ce que chaque bossage (6), localisé sur une nervure (5), comporte une partie plane (7) de forme carrée ou rectangulaire, située à la base de la nervure (5), et deux facettes opposées (8, Heat exchanger according to Claims 2 and 3, characterized in that each boss (6), located on a rib (5), comprises a flat portion (7) of square or rectangular shape, located at the base of the rib (5), and two opposing facets (8,
9) d'allure générale triangulaire, situées dans des plans inclinés et rejoignant le sommet de la nervure (5). 9) of triangular general appearance, located in inclined planes and joining the top of the rib (5).
Echangeur de chaleur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, pour l'assemblage par soudure de deux plaques (1 ,2), sur deux côtés opposés, ces plaques (1 ,2) comportent des bords (10,1 1 ) soudés l'un à l'autre, qui sont soit situés dans le plan des sommets (7) des bossages (6), soit pliés à angle droit par rapport à ce plan. Heat exchanger according to one of Claims 1 to 6, characterized in that, for joining two plates (1, 2) on two opposite sides, these plates (1, 2) have edges ( 10,1 1) welded to each other, which are either located in the plane of the vertices (7) bosses (6), or bent at right angles to this plane.
Plaque métallique destinée à la constitution d'un échangeur de chaleur à plaques soudées selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'elle comporte, sur son étendue, d'une part des nervures (4,5) parallèles lui conférant un profil ondulé, et d'autre part des bossages (6) dont le sommet (7) se situe dans un plan contenant les bases ou les sommets des nervures (4,5), les sommets (7) des bossages (6) de la plaque (1 ,2) étant prévus pour être soudés sur les sommets des bossages d'une autre plaque similaire. Metal plate for the constitution of a welded plate heat exchanger according to any one of claims 1 to 7, characterized in that it comprises, on its extent, on the one hand parallel ribs (4,5) conferring on it a corrugated profile, and on the other hand bosses (6) whose vertex (7) is situated in a plane containing the bases or the vertices of the ribs (4,5), the vertices (7) of the bosses (6) ) of the plate (1, 2) being provided to be welded to the tops of the bosses of another similar plate.
Plaque selon la revendication 8, caractérisée en ce que les bossages (6) présentent des sommets (7) de forme plate, situés dans le plan contenant les bases ou les sommets des nervures (4,5). Plate according to claim 8, characterized in that the bosses (6) have vertices (7) of flat shape, located in the plane containing the bases or the vertices of the ribs (4,5).
10. Plaque selon la revendication 8 ou 9, caractérisée en ce que les bossages (6) sont alignés avec certaines nervures (5) de cette plaque (1 ,2), lesdits bossages (6) se présentant comme des interruptions locales, régulièrement espacées, de ces nervures (5). 10. Plate according to claim 8 or 9, characterized in that the bosses (6) are aligned with certain ribs (5) of the plate (1, 2), said bosses (6) being local interruptions, regularly spaced of these ribs (5).
1 1 . Plaque selon la revendication 10, caractérisée en ce que les bossages (6) sont formés sur une nervure (5) sur deux de la plaque (1 ,2), laquelle présente alors une alternance de nervures (4) continues et de nervures (5) interrompues par des bossages (6). 1 1. Plate according to claim 10, characterized in that the bosses (6) are formed on a rib (5) on two of the plate (1, 2), which then has an alternation of continuous ribs (4) and ribs (5). ) interrupted by bosses (6).
12. Plaque selon la revendication 1 1 , caractérisée en ce que, vus dans la direction des nervures (4,5) de la plaque (1 ,2), les bossages (6) de celle-ci présentent une disposition en quinconce, les bossages (6) formés sur une nervure (5) étant décalés, suivant cette direction, par rapport aux bossages (7) formés sur la prochaine nervure (5) rencontrée pourvue de bossages. 12. Plate according to claim 1 1, characterized in that, seen in the direction of the ribs (4,5) of the plate (1, 2), the bosses (6) thereof have a staggered arrangement, the bosses (6) formed on a rib (5) being offset, in this direction, relative to the bosses (7) formed on the next rib (5) encountered provided with bosses.
13. Plaque selon la revendication 9 et l'une quelconque des revendications 10 à 12, caractérisée en ce que chaque bossage (6), localisé sur une nervure (5), comporte une partie plane (7) de forme carrée ou rectangulaire, située à la base de la nervure (5), et deux facettes opposées (8,9) d'allure générale triangulaire, situées dans des plans inclinés et rejoignant le sommet de la nervure (5). 13. Plate according to claim 9 and any one of claims 10 to 12, characterized in that each boss (6), located on a rib (5), comprises a flat portion (7) of square or rectangular shape, located at the base of the rib (5), and two opposing facets (8,9) of general triangular appearance, located in inclined planes and joining the top of the rib (5).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP11802458.7A EP2635867B1 (en) | 2010-11-05 | 2011-10-31 | Heat exchanger having welded plates, and plate forming a component of such a heat exchanger |
ES11802458T ES2901707T3 (en) | 2010-11-05 | 2011-10-31 | Heat exchanger having welded plates and plate forming a component of said heat exchanger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1059128A FR2967247B1 (en) | 2010-11-05 | 2010-11-05 | HEAT EXCHANGER HAVING WELD PLATES AND PLATE COMPRISING SUCH AN EXCHANGER |
FR1059128 | 2010-11-05 |
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WO2012059683A1 true WO2012059683A1 (en) | 2012-05-10 |
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PCT/FR2011/052552 WO2012059683A1 (en) | 2010-11-05 | 2011-10-31 | Heat exchanger having welded plates, and plate forming a component of such a heat exchanger |
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Country | Link |
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EP (1) | EP2635867B1 (en) |
ES (1) | ES2901707T3 (en) |
FR (1) | FR2967247B1 (en) |
PT (1) | PT2635867T (en) |
WO (1) | WO2012059683A1 (en) |
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PL2944912T3 (en) | 2014-05-13 | 2017-04-28 | Alfa Laval Corporate Ab | Plate heat exchanger |
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JPH01203892A (en) * | 1988-02-09 | 1989-08-16 | Mitsubishi Heavy Ind Ltd | Plate type heat exchanger |
JPH07260384A (en) * | 1994-03-28 | 1995-10-13 | Hisaka Works Ltd | Plate type heat exchanger |
JPH07260387A (en) * | 1994-03-28 | 1995-10-13 | Hisaka Works Ltd | Plate type heat exchanger |
WO1997039301A1 (en) * | 1996-04-16 | 1997-10-23 | Alfa Laval Ab | A plate heat exchanger |
WO2003069249A1 (en) * | 2001-12-18 | 2003-08-21 | Alfa Laval Corporate Ab | A heat exchanger plate, a plate pack and a plate heat exchanger |
US20080078538A1 (en) * | 2006-09-28 | 2008-04-03 | Ali Jalilevand | Heat exchanger plate having integrated turbulation feature |
-
2010
- 2010-11-05 FR FR1059128A patent/FR2967247B1/en active Active
-
2011
- 2011-10-31 EP EP11802458.7A patent/EP2635867B1/en active Active
- 2011-10-31 WO PCT/FR2011/052552 patent/WO2012059683A1/en active Application Filing
- 2011-10-31 PT PT118024587T patent/PT2635867T/en unknown
- 2011-10-31 ES ES11802458T patent/ES2901707T3/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01203892A (en) * | 1988-02-09 | 1989-08-16 | Mitsubishi Heavy Ind Ltd | Plate type heat exchanger |
JPH07260384A (en) * | 1994-03-28 | 1995-10-13 | Hisaka Works Ltd | Plate type heat exchanger |
JPH07260387A (en) * | 1994-03-28 | 1995-10-13 | Hisaka Works Ltd | Plate type heat exchanger |
WO1997039301A1 (en) * | 1996-04-16 | 1997-10-23 | Alfa Laval Ab | A plate heat exchanger |
WO2003069249A1 (en) * | 2001-12-18 | 2003-08-21 | Alfa Laval Corporate Ab | A heat exchanger plate, a plate pack and a plate heat exchanger |
US20080078538A1 (en) * | 2006-09-28 | 2008-04-03 | Ali Jalilevand | Heat exchanger plate having integrated turbulation feature |
Also Published As
Publication number | Publication date |
---|---|
ES2901707T3 (en) | 2022-03-23 |
PT2635867T (en) | 2022-01-07 |
EP2635867A1 (en) | 2013-09-11 |
EP2635867B1 (en) | 2021-11-17 |
FR2967247A1 (en) | 2012-05-11 |
FR2967247B1 (en) | 2012-11-02 |
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