EP0186592A1 - Plate heat exchanger - Google Patents

Plate heat exchanger Download PDF

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Publication number
EP0186592A1
EP0186592A1 EP85402573A EP85402573A EP0186592A1 EP 0186592 A1 EP0186592 A1 EP 0186592A1 EP 85402573 A EP85402573 A EP 85402573A EP 85402573 A EP85402573 A EP 85402573A EP 0186592 A1 EP0186592 A1 EP 0186592A1
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EP
European Patent Office
Prior art keywords
plates
plate
exchanger according
intervals
pair
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
EP85402573A
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German (de)
French (fr)
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EP0186592B1 (en
Inventor
André Peze
Henry Fechner
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Barriquand SA
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Barriquand SA
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Publication date
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Publication of EP0186592A1 publication Critical patent/EP0186592A1/en
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Publication of EP0186592B1 publication Critical patent/EP0186592B1/en
Expired legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-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
    • F28D9/0031Heat-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
    • F28D9/0037Heat-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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00Heat exchange
    • Y10S165/355Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356Plural plates forming a stack providing flow passages therein
    • Y10S165/373Adjacent heat exchange plates having joined bent edge flanges for forming flow channels therebetween
    • Y10S165/384Thermally bonded side edges
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/4935Heat exchanger or boiler making
    • Y10T29/49366Sheet joined to sheet

Definitions

  • the invention relates to a plate heat exchanger.
  • plate exchangers are produced by stacking a multiplicity of plates with interposition of seals between successive plates, these seals being open at intervals so as to put intermediate intervals between two plates into communication with intake and intake manifolds. fluid return.
  • the successive intervals are connected in this way alternately to intake and return manifolds conveying a first fluid and intake and return manifolds conveying a second fluid, the term fluid here encompassing all types of liquids and gas, the two fluids exchanging heat energy through the plates during their journey in the intervals between plates.
  • seals limits the field of use of these exchangers, in particular with regard to temperature, pressure and certain fluids, such as corrosive fluids (acids) or solvents.
  • maintaining the plates in a stacked condition necessarily requires providing support plates at the ends of the stack, which are connected to one another by tie rods distributed around the periphery of the exchanger plates.
  • the resistance of the support plates and tie rods is conditioned by the higher of the pressures of the two fluids circulating in the exchanger.
  • each plate is assembled to an adjacent plate by welding along two opposite edges, and to the other adjacent plate along two other opposite edges, so that the circulation of the fluids in the intervals between successive plates must be performed at cross currents.
  • the plates are first welded in pairs along at least two opposite edges, then the pairs thus formed are grouped inside a calender , which is sometimes simply made up of sealing strips welded on one side to another pair of plates, along the same edges and on the other side to another pair of plates, close to the first or not.
  • the present invention provides a plate exchanger comprising a multiplicity of metal plates juxtaposed and defining intervals between them, one interval out of two being intended for the circulation of a first fluid and the other intervals being intended to the circulation of a second fluid substantially parallel to the first, each plate being connected at its periphery to the two adjacent plates in a leaktight manner while providing inlet and outlet orifices for said fluids, characterized in that said plates are assembled in pairs by linear welding in two opposite end zones of the plates of each pair, at least one plate in pairs comprising a wing, at least in one of said end zones and in the vicinity of said weld, folded substantially at right angles and connected in its free marginal zone to a plate opposite a neighboring pair, by linear welding.
  • the exchanger according to the invention consists of a stack of juxtaposed metal plates in the form of! 1> - - so rectangular and six of these plates 10, 11, 12, 13 are shown in FIG. 1, 14 and 15, some of which have been cut transversely so as to highlight the particularities of assembly.
  • the first pair, 10-11 is shown to its anterior edge while the other two pairs have been sectioned along different transverse vertical planes.
  • the plates of the same pair define between them an interval designated by the reference A, and the pairs define between them intervals designated by the reference B.
  • the intervals A are intended for the circulation of a first fluid and the intervals B are intended for the circulation of a second fluid, with the aim of ensuring a heat exchange between them through the plates.
  • the intervals A and B are closed, at least at the top and bottom by the fact that each plate is connected at its periphery to the two adjacent plates, in a sealed manner.
  • the plates of the same pair for example 14-15, are welded together by linear welds 16 and 17 in their upper and lower end zones.
  • these welds can be produced, for example, by electrical welding with a thumbwheel, as will be explained below.
  • the plates have wings 18, 19, 20, 21 connected to their upper and lower end zones, and folded substantially at right angles, which makes it possible to assemble the pairs of plates together.
  • the pairs are assembled side by side, so that the wings 20, 21 of a plate (14) of a first pair (14-15) are arranged edge to edge relative to the wings ( 22, 23) of the plate 13 opposite the neighboring pair (12-13) and the wings are welded to each other (20 and 22, 21 and 23) by a linear weld bead, for example by welding bow.
  • the plates of the same pair (10-11) are also welded to each other along their anterior extreme zone 24, either by electrical welding with a thumbwheel, or by cord arc welding.
  • Fluid inlet and outlet openings to the intervals A are provided in the form of interruptions in the upper linear welds 16 and lower 17.
  • a single orifice 25 has been illustrated in FIG. 1, at the level of the upper weld 16, and in the vicinity of the anterior end zone 24.
  • the other orifice, not shown, is arranged in the vicinity of the posterior end zone, optionally at the level of the upper weld 16 or the lower weld 17.
  • the pairs of plates are devoid of wings at their anterior and posterior end zones, so that there remain free openings between the pairs of plates, which thus constitute the inlet and outlet orifices for the fluid circulating in intervals B.
  • the plates have depressions 26 distributed substantially regularly over the surface of the plates and whose role is multiple.
  • the plates are welded to each other by points at the bottom of the depressions, which prevents - the spacing of the plates when, on the contrary, the fluid pressure prevailing in the intervals A exceeds that which prevails in intervals B.
  • these depressions create obstacles to the flow of the fluid in the intervals A and the turbulences which result from it improve the heat exchanges between this fluid and the plates.
  • depressions can be arranged in regular rows as illustrated, or in staggered rows or according to any predetermined arrangement.
  • the insulated plate 10 illustrated in Figure 2 was obtained in a conventional manner by stamping the depressions 26 and folding the wings square.
  • This plate is then assembled to a second plate 11 by spot welding at the bottom of the depressions 26 ( Figure 3).
  • Weld beads 16, 17 are then produced in the vicinity of the feet of the wings, by electrical welding using knobs 28, 29 (FIG. 4), it being noted that the plates initially spaced from one another ( Figure 3) are forced to move together under the pressure of the knobs. This is made possible by the small thickness of the plates and their small spacing and avoids a prior drilling operation.
  • a first pair of plates (10-11) is then assembled to a second pair of plates (12-13) constituted in the above manner, by presenting the wings of both in edge-to-edge relationship and then by producing a linear weld bead, for example by arc welding.
  • the plates thus assembled form a one-piece assembly with which inlet and outlet manifolds are associated for the fluids circulating in the intervals A and B.
  • a manifold 30 in the form of a rectangular pipe is welded to the perimeter of the front end of the exchanger plates.
  • a similar manifold, not shown, is welded to the perimeter of the rear end of the exchanger plates.
  • a semi-cylindrical manifold 32 is welded transversely to all of the plates, so as to cover all of the orifices 25 for the fluid flowing in the intervals A.
  • the front edge (according to the arrangement of FIG. 8) of the collector 32 is welded to the upper face of the collector 30, and its rear edge is welded to a pseudo-planar and almost continuous surface, formed by the succession of the wings of the plates exchanger. These welds are preferably carried out with the addition of metal so as to provide the required seal.
  • the front edge of the manifold 32 can also be welded to the wings of the exchanger plates, provided that the orifices 25 are formed somewhat behind the front edges 24 of the plates.
  • a wedge 34 in the form of a wedge is introduced between two plates of a pair 1 0-11 so as to prevent the advance of the welding knobs - 28, 29 in the area of the orifice.
  • support plates 36, 38 must be provided in the vicinity of the exchanger plates situated at the ends (FIG. 6). These support plates are juxtaposed, without fastening, the heat exchanger plates so as to allow differential expansion, and are joined to each other by tie rods 4 0, sized and distributed to absorb the forces due to the Pession of the fluid circulating in the intervals B.
  • FIG. 9 only one plate out of two comprises wings 18, 19, the other plates being devoid of wings.
  • the pairs are assembled by welding the wings of a plate directly to the edges of a plate devoid of wings of the neighboring pair.
  • the plates carrying the wings are entirely flat and the plates devoid of wings carry the depressions 26.
  • the plates devoid of wings carry the depressions 26.
  • the plates When assembling in pairs, the plates are placed head to tail, then the pairs are assembled, as before, by welding the edge of the wings to the edge of the facing plates.
  • the wings are extended by a flap 42, and the ends of plates devoid of wings have an extension 44.
  • the flaps and the extensions are welded flat by electric welding with a seam.
  • the exchanger plates are completely flat and during assembly in pairs, is interposed therebetween metallic spacers 4 6 which are spot welded to both plates.
  • the plates are of the corrugation type, the corrugations of one (48) having a different orientation from the corrugations (50) of the adjacent plate.
  • the plates are joined in pairs by seam welding along their edge, as seen above. It is also possible to provide or not to join the two plates by spot welds in the zones where the top of the undulations of one is in contact with the bottom of the undulations of the other, as illustrated by the points P in the figure.
  • the plates are assembled in pairs by linear welding without the addition of metal in two opposite end zones, and that at least one plate in each pair has a wing located in at least one of these extreme zones and in the vicinity of the linear weld, folded back to the square and connected in its free marginal zone to a plate opposite a neighboring pair, by linear weld.

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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)

Abstract

Echangeur à plaques comprenant une multiplicité de plaques métalliques (10-15) juxtaposées et séparées par des intervalles (A, B), un intervalle sur deux (A) étant destiné à la circulation d'un premier fluide et les autres intervalles (B) étant destinés à la circulation d'un second fluide sensiblement parallèlement au premier, chaque plaque étant reliée à sa périphérie aux deux plaques voisines de manière étanche, de manière à obturer, tout au moins partiellement lesdits intervalles (A, B) tout en ménageant des orifices d'admission et de sortie pour lesdits fluides, lesdites plaques étant assemblées par paires (10-11, 12-13, 14-15) par soudure linéaire (16, 17) dans deux zones extrêmes opposées des plaques de chaque paire, caractérisé en ce qu'une plaque (14) au moins par paire comporte une aile (20), au moins dans l'une desdites zones extrêmes et au voisinage de ladite soudure (16), repliée sensiblement à l'équerre et raccordée dans sa zone marginale libre à une plaque (13) en vis-à-vis d'une paire voisine, par soudure linéaire.Plate exchanger comprising a multiplicity of metal plates (10-15) juxtaposed and separated by intervals (A, B), one interval out of two (A) being intended for the circulation of a first fluid and the other intervals (B) being intended for the circulation of a second fluid substantially parallel to the first, each plate being connected at its periphery to the two adjacent plates in a sealed manner, so as to close, at least partially said intervals (A, B) while providing inlet and outlet ports for said fluids, said plates being assembled in pairs (10-11, 12-13, 14-15) by linear welding (16, 17) in two opposite end zones of the plates of each pair, characterized in that at least one plate (14) per pair comprises a wing (20), at least in one of said end zones and in the vicinity of said weld (16), folded substantially at right angles and connected in its zone marginal free to a facing plate (13) is from a neighboring pair, by linear welding.

Description

L'invention concerne un échangeur à plaques.The invention relates to a plate heat exchanger.

Dans des solutions classiques, on réalise des échangeurs à plaques en empilant une multiplicité de plaques avec interposition de joints entre plaques successives, ces joints étant ouverts par entroits afin de mettre en communication des intervalles intermédiaires entre deux plaques avec des collecteurs d'admission et de retour de fluide. Comme connu, les intervalles successifs sont reliés de cette manière alternativement à des collecteurs d'admission et de retour véhiculant un premier fluide et des collecteurs d'admission et de retour véhiculant un second fluide, le terme fluide englobant ici tous types de liquides et de gaz, les deux fluides échangeant de l'énergie calorifique au travers des plaques durant leur parcours dans les intervalles entre plaques.In conventional solutions, plate exchangers are produced by stacking a multiplicity of plates with interposition of seals between successive plates, these seals being open at intervals so as to put intermediate intervals between two plates into communication with intake and intake manifolds. fluid return. As known, the successive intervals are connected in this way alternately to intake and return manifolds conveying a first fluid and intake and return manifolds conveying a second fluid, the term fluid here encompassing all types of liquids and gas, the two fluids exchanging heat energy through the plates during their journey in the intervals between plates.

La présence de tels joints limite le domaine d'utilisation de ces échangeurs, notamment vis à vis de la température, de la pression et de certains fluides, comme les fluides corrosifs (acides) ou les solvants.The presence of such seals limits the field of use of these exchangers, in particular with regard to temperature, pressure and certain fluids, such as corrosive fluids (acids) or solvents.

Enfin, le maintien des plaques en condition empilée nécessite obligatoirement de prévoir des plaques de soutien aux extrémités de l'empilage, qui sont reliées l'une à l'autre par des tirants répartis sur le pourtour des plaques d'échangeur. La résistance des plaques de soutien et des tirants est conditionnée par la plus élevée des pressions des deux fluides circulant dans l'échangeur.Finally, maintaining the plates in a stacked condition necessarily requires providing support plates at the ends of the stack, which are connected to one another by tie rods distributed around the periphery of the exchanger plates. The resistance of the support plates and tie rods is conditioned by the higher of the pressures of the two fluids circulating in the exchanger.

Pour éviter la présence de joints, on connaît des solutions dans lesquelles les plaques sont assemblées entre elles par soudure à leur périphérie.To avoid the presence of seals, solutions are known in which the plates are assembled together by welding at their periphery.

Dans une première solution chaque plaque est assemblée à une plaque voisine par soudure le long de deux bords opposés, et à l'autre plaque voisine le long de deux autres bords opposés, ce qui fait que la circulation des fluides dans les intervalles entre plaques successives s'effectue obligatoirement à courants croisés.In a first solution, each plate is assembled to an adjacent plate by welding along two opposite edges, and to the other adjacent plate along two other opposite edges, so that the circulation of the fluids in the intervals between successive plates must be performed at cross currents.

Dans une seconde solution, permettant- la circulation des fluides à courants parallèles, les plaques sont tout d'abord soudées par paires le long d'au moins deux bords opposés, puis les paires ainsi constituées sont groupées à l'intérieur d'une calandre, qui est parfois simplement constituée de bandes d'obturation soudées sur un côté à une autre paire de plaques, le long des mêmes bords et sur l'autre côté à une autre paire de plaques, voisine de la première ou non.In a second solution, allowing the circulation of fluids with parallel currents, the plates are first welded in pairs along at least two opposite edges, then the pairs thus formed are grouped inside a calender , which is sometimes simply made up of sealing strips welded on one side to another pair of plates, along the same edges and on the other side to another pair of plates, close to the first or not.

On constate cependant, que dans ce dernier type de solution, il y a de nombreux cordons de soudure, certains étant parfois superposés, ce qui, outre le coût de fabrication, introduit des distorsions métallurgiques dans le métal avoisinant des plaques. Enfin, en cas de rupture de soudures, il est particulièrement malcommode de procéder à des réparations sans enlever préalablement certaines bandes d'obturation. En certains endroits, il y a parfois un empilage tel de métal des plaques d'échangeur et de métal d'apport de la soudure que ces échangeurs supportent mal les dilatations différentielles.It is noted, however, that in the latter type of solution, there are many weld beads, some of which are sometimes superimposed, which, in addition to the manufacturing cost, introduces metallurgical distortions in the metal surrounding the plates. Finally, in the event of a weld rupture, it is particularly awkward to carry out repairs without first removing certain sealing strips. In certain places, there is sometimes a stack such of metal of the exchanger plates and of weld filler metal that these exchangers do not support differential expansions well.

Dans le but de pallier ces inconvénients, la présente invention propose un échangeur à plaques comprenant une multiplicité de plaques métalliques juxtaposées et définissant entre elles des intervalles, un intervalle sur deux étant destiné à la circulation d'un premier fluide et les autres intervalles étant destinés à la circulation d'un second fluide sensiblement parallèlement au premier, chaque plaque étant reliée à sa périphérie aux deux plaques voisines de manière étanche tout en ménageant des orifices d'admission et de sortie pour lesdits fluides, caractérisé en ce que lesdites plaques sont assemblées par paires par soudure linéaire dans deux zones extrêmes opposées des plaques de chaque paire, une plaque au moins par paire comportant une aile, au moins dans l'une desdites zones extrêmes et au voisinage de ladite soudure, repliée sensiblement à l'équerre et raccordée dans sa zone marginale libre à une plaque en vis à vis d'une paire voisine, par soudure linéaire.In order to overcome these drawbacks, the present invention provides a plate exchanger comprising a multiplicity of metal plates juxtaposed and defining intervals between them, one interval out of two being intended for the circulation of a first fluid and the other intervals being intended to the circulation of a second fluid substantially parallel to the first, each plate being connected at its periphery to the two adjacent plates in a leaktight manner while providing inlet and outlet orifices for said fluids, characterized in that said plates are assembled in pairs by linear welding in two opposite end zones of the plates of each pair, at least one plate in pairs comprising a wing, at least in one of said end zones and in the vicinity of said weld, folded substantially at right angles and connected in its free marginal zone to a plate opposite a neighboring pair, by linear welding.

Les détails et avantages de l'invention apparaîtront plus clairement à la lecture de la description qui va suivre, en se référant aux dessins annexés, dans lesquels:

  • la figure 1 est une vue en perspective avec arrachements partiels d'un échangeur selon l'invention,
  • les figures 2, 3, 4, 5 et 6 sont des vues illustrant le conformage et l'assemblage des plaques de l'échangeur de la figure 1, prises en coupe transversale;
  • la figure 7 est une vue en perspective illustrant un détail d'assemblage de deux plaques de l'échangeur,
  • la figure 8 est une vue d'ensemble en perspective avec arrachements, d'une extrémité d'échangeur totalement assemblé, et;
  • les figures 9 à 13 sont des vues semblables à celle de la figure 6, illustrant diverses variantes de l'invention.
The details and advantages of the invention will appear more clearly on reading the description which follows, with reference to the accompanying drawings, in which:
  • FIG. 1 is a perspective view with partial cutaway of an exchanger according to the invention,
  • Figures 2, 3, 4, 5 and 6 are views illustrating the shaping and assembly of the plates of the exchanger of Figure 1, taken in cross section;
  • FIG. 7 is a perspective view illustrating a detail of assembly of two plates of the exchanger,
  • Figure 8 is an overall perspective view with cutaway, of a completely assembled exchanger end, and;
  • Figures 9 to 13 are views similar to that of Figure 6, illustrating various variants of the invention.

L'échangeur conforme à l'invention se compose d'un empilage de plaques métalliques juxtaposées de forme se!1>-- - siblement rectangulaire et on a représenté à la figure 1, six de ces plaques 10, 11, 12, 13, 14 et 15 dont certaines ont été recoupées transversalement de façon à mettre en lumière les particularités d'assemblage.The exchanger according to the invention consists of a stack of juxtaposed metal plates in the form of! 1> - - so rectangular and six of these plates 10, 11, 12, 13 are shown in FIG. 1, 14 and 15, some of which have been cut transversely so as to highlight the particularities of assembly.

En premier lieu, on remarque que les plaques sont assemblées par paires, 10-11, 12-13 et 14 = 15.First, we notice that the plates are assembled in pairs, 10-11, 12-13 and 14 = 15.

La première paire, 10-11, est représentée jusqu'à son bord antérieur tandis que les deux autres paires ont été sectionnées suivant des plans verticaux transversaux différents.The first pair, 10-11, is shown to its anterior edge while the other two pairs have been sectioned along different transverse vertical planes.

Les plaques d'une même paire définissent entre elles un intervalle désigné par la référence A, et les paires définissent entre elles des intervalles désignés par la référence B. Comme bien connu, les intervalles A sont destinées à la circulation d'un premier fluide et les intervalles B sont destinées à la circulation d'un second fluide, dans le but d'assurer un échange thermique entre eux au travers des plaques.The plates of the same pair define between them an interval designated by the reference A, and the pairs define between them intervals designated by the reference B. As is well known, the intervals A are intended for the circulation of a first fluid and the intervals B are intended for the circulation of a second fluid, with the aim of ensuring a heat exchange between them through the plates.

Les intervalles A et B sont obturés, tout au moins en partie haute et basse par le fait que chaque plaque est reliée à sa périphérie aux deux plaques voisines, de manière étanche. Les plaques d'une même paire, par exemple 14-15, sont soudées entre elles par des soudures linéaires 16 et 17 dans leurs zones extrêmes supérieure et inférieure. Conformément à l'invention ces soudures peuvent être réalisées par exemple par soudure électrique à la molette, comme il sera expliqué plus loin.The intervals A and B are closed, at least at the top and bottom by the fact that each plate is connected at its periphery to the two adjacent plates, in a sealed manner. The plates of the same pair, for example 14-15, are welded together by linear welds 16 and 17 in their upper and lower end zones. In accordance with the invention, these welds can be produced, for example, by electrical welding with a thumbwheel, as will be explained below.

Les plaques comportent des ailes 18, 19, 20, 21 raccordées à leurs zones extrêmes supérieure et inférieure, et repliées sensiblement à t'équerre, ce qui permet d'assembler les paires de plaques entre elles.The plates have wings 18, 19, 20, 21 connected to their upper and lower end zones, and folded substantially at right angles, which makes it possible to assemble the pairs of plates together.

Dans le mode de réalisation représenté, les paires sont assemblées côte à côte, de manière que les ailes 20, 21 d'une plaque (14) d'une première paire (14-15) soient disposées bord à bord par rapport aux ailes (22, 23) de la plaque 13 en vis à vis de la paire voisine (12-13) et les ailes sont soudées l'une à l'autre (20 et 22, 21 et 23) par un cordon de soudure linéaire, par exemple par soudure à l'arc.In the embodiment shown, the pairs are assembled side by side, so that the wings 20, 21 of a plate (14) of a first pair (14-15) are arranged edge to edge relative to the wings ( 22, 23) of the plate 13 opposite the neighboring pair (12-13) and the wings are welded to each other (20 and 22, 21 and 23) by a linear weld bead, for example by welding bow.

Comme illustré à la figure 1, les plaques d'une même paire (10-11) sont également soudées l'une à l'autre le long de leur zone extrême antérieure 24, soit par soudure électrique à la molette, soit par cordon de soudure à l'arc.As illustrated in FIG. 1, the plates of the same pair (10-11) are also welded to each other along their anterior extreme zone 24, either by electrical welding with a thumbwheel, or by cord arc welding.

On comprendra qu'il en est de même dans les zones extrêmes postérieures des plaques, qui n'ont pas été représentées par commodité.It will be understood that the same is true in the posterior end zones of the plates, which have not been shown for convenience.

Des orifices d'entrée et de sortie de fluide vers les intervalles A sont été ménagés sous forme d'interruptions dans les soudures linéaires supérieure 16 et inférieure 17. Un seul orifice 25 a été illustré à la figure 1, au niveau de la soudure supérieure 16, et au voisinage de la zone extrême antérieure 24. L'autre orifice, non représenté, est disposé au voisinage de la zone extrême postérieure, au choix au niveau de la soudure supérieure 16 ou de la soudure inférieure 17.Fluid inlet and outlet openings to the intervals A are provided in the form of interruptions in the upper linear welds 16 and lower 17. A single orifice 25 has been illustrated in FIG. 1, at the level of the upper weld 16, and in the vicinity of the anterior end zone 24. The other orifice, not shown, is arranged in the vicinity of the posterior end zone, optionally at the level of the upper weld 16 or the lower weld 17.

Les paires de plaques sont dépourvues d'ailes au niveau de leurs zones extrêmes antérieures et postérieures, de sorte qu'il subsiste des ouvertures libres entre les paires de plaques, qui constituent ainsi les orifices d'entrée et de sortie pour le fluide circulant dans les intervalles B.The pairs of plates are devoid of wings at their anterior and posterior end zones, so that there remain free openings between the pairs of plates, which thus constitute the inlet and outlet orifices for the fluid circulating in intervals B.

On remarque enfin à la figure 1, que les plaques comportent des dépressions 26 réparties sensiblement régulièrement sur la surface des plaques et dont le rôle est multiple.Finally, it can be seen in FIG. 1, that the plates have depressions 26 distributed substantially regularly over the surface of the plates and whose role is multiple.

En premier lieu, lorsque deux plaques d'une paire sont assemblées (12-13), leurs dépressions 26 viennent en contact mutuel, ce qui assure une largeur constante pour les intervalles A, même lorsque la pression de fluide régnant dans les intervalles B dépasse celle qui règne dans les intervalles A.First, when two plates of a pair are joined (12- 1 3), their depressions 26 come into mutual contact, which ensures a constant width to the gaps A, even when the fluid pressure in the intervals B exceeds that which prevails in the intervals A.

En deuxième lieu, les plaques sont soudées l'une à l'autre par points au fond des dépressions, ce-qui empêche - l'écartement des plaques lorsque, au contraire, la pression de fluide régnant dans les intervalles A dépasse celle qui règne dans les intervalles B.Secondly, the plates are welded to each other by points at the bottom of the depressions, which prevents - the spacing of the plates when, on the contrary, the fluid pressure prevailing in the intervals A exceeds that which prevails in intervals B.

En troisième lieu, ces dépressions créent des obstacles à l'écoulement du fluide dans les intervalles A et les turbulences qui en résultent améliorent les échanges thermiques entre ce fluide et les plaques.Thirdly, these depressions create obstacles to the flow of the fluid in the intervals A and the turbulences which result from it improve the heat exchanges between this fluid and the plates.

Ces dépressions peuvent être disposées en rangées régulières comme illustré, ou en quinconce ou encore suivant toute disposition prédéterminée.These depressions can be arranged in regular rows as illustrated, or in staggered rows or according to any predetermined arrangement.

La séquence de formation et d'assemblage des plaques est illustrée aux figures 2 à 7 dans lesquelles les plaques sont représentées en coupe transversale schématique.The sequence of formation and assembly of the plates is illustrated in Figures 2 to 7 in which the plates are shown in schematic cross-section.

La plaque isolée 10 illustrée à la figure 2 a été obtenue de manière classique par emboutissage des dépressions 26 et pliage des ailes à l'équerre.The insulated plate 10 illustrated in Figure 2 was obtained in a conventional manner by stamping the depressions 26 and folding the wings square.

Cette plaque est ensuite assemblée à une seconde plaque 11 par soudure par points au fond des dépressions 26 (figure 3).This plate is then assembled to a second plate 11 by spot welding at the bottom of the depressions 26 (Figure 3).

On réalise ensuite des cordons de soudure 16, 17 au voisinage des pieds des ailes, par soudure électrique à l'aide de molettes 28, 29 (figure 4), étant fait remarquer que les plaques initialement distantes l'une de l'autre (figure 3) sont forcées en rapprochement sous la pression des molettes. Ceci est rendu possible par la faible épaisseur des plaques et leur faible écartement et évite une opération de soyage préalable.Weld beads 16, 17 are then produced in the vicinity of the feet of the wings, by electrical welding using knobs 28, 29 (FIG. 4), it being noted that the plates initially spaced from one another ( Figure 3) are forced to move together under the pressure of the knobs. This is made possible by the small thickness of the plates and their small spacing and avoids a prior drilling operation.

On assemble ensuite une première paire de plaques (10-11) à une seconde paire de plaques (12-13) constituée de la manière qui précède, en présentant les ailes de l'une et de l'autre en relation bord à bord puis en réalisant un cordon de soudure linéaire, par exemple par soudure à l'arc.A first pair of plates (10-11) is then assembled to a second pair of plates (12-13) constituted in the above manner, by presenting the wings of both in edge-to-edge relationship and then by producing a linear weld bead, for example by arc welding.

On assemble de cette manière le nombre de paires de plaques requis pour obtenir la surface d'échange souhaitée.This assembles the number of pairs of plates required to obtain the desired exchange surface.

Les plaques ainsi assemblées forment un ensemble monobloc auquel on associe des collecteurs d'entrée et de sortie pour les fluides circulant dans les intervalles A et B.The plates thus assembled form a one-piece assembly with which inlet and outlet manifolds are associated for the fluids circulating in the intervals A and B.

Comme illustré à la figure 8, un collecteur 30 en forme de conduit rectangulaire est soudé sur le périmètre de l'extrémité antérieure des plaques d'échangeur. Un collecteur semblable, non représenté, est soudé sur le périmètre de l'extrémité postérieure des plaques d'échangeur. Ces deux collecteurs servant à véhiculer le fluide circulant dans les intervalles B.As illustrated in FIG. 8, a manifold 30 in the form of a rectangular pipe is welded to the perimeter of the front end of the exchanger plates. A similar manifold, not shown, is welded to the perimeter of the rear end of the exchanger plates. These two collectors used to convey the fluid circulating in the intervals B.

Un collecteur demi-cylindrique 32 est soudé transversalement sur l'ensemble des plaques, de manière à coiffer l'ensemble des orifices 25 pour le fluide circulant dans les intervalles A.A semi-cylindrical manifold 32 is welded transversely to all of the plates, so as to cover all of the orifices 25 for the fluid flowing in the intervals A.

Le bord antérieur (selon la disposition de la figure 8) du collecteur 32 est soudé sur la face supérieure du collecteur 30, et son bord postérieur est soudé sur une surface pseudo-plane et quasi-continue, formée par la succession des ailes des plaques d'échangeur. Ces soudures sont de préférence effectuées avec apport de métal de façon à assurer l'étanchéité requise.The front edge (according to the arrangement of FIG. 8) of the collector 32 is welded to the upper face of the collector 30, and its rear edge is welded to a pseudo-planar and almost continuous surface, formed by the succession of the wings of the plates exchanger. These welds are preferably carried out with the addition of metal so as to provide the required seal.

En variante, le bord antérieur de collecteur 32 peut être lui aussi soudé sur les ailes des plaques d'échangeur, pour autant que les orifices 25 soient ménagés quelque peu en retrait des bords antérieurs 24 de plaques.As a variant, the front edge of the manifold 32 can also be welded to the wings of the exchanger plates, provided that the orifices 25 are formed somewhat behind the front edges 24 of the plates.

Le détail illustré à la figure 7 permet de comprendre la manière dont sont réalisés les orifices 25. Une cale 34 en forme de coin est introduite entre deux plaques d'une paire 10-11 de manière à empêcher l'avancée des molettes de soudage - 28, 29 dans la zone de l'orifice. On peut également se passer de cale 34 et simplement stopper l'avance des molettes de soudage à un endroit prédéterminé, dans la mesure où les plaques sont maintenues en écartement par la présence des dépressions 26 formant entretoises. En toute rigueur, il y aurait lieu de ternir compte du fait que les ailes de plaques débordent d'une plus grande distance au niveau des orifices et prévoir une opération de recoupe de façon à ce que les ailes présentent un bord rectiligne, mais ceci ne sera en pratique par toujours nécessaire dans la mesure où les intervalles sont de faible épaisseur (quelques milimètres).The detail illustrated in FIG. 7 makes it possible to understand the manner in which the orifices 25 are produced. A wedge 34 in the form of a wedge is introduced between two plates of a pair 1 0-11 so as to prevent the advance of the welding knobs - 28, 29 in the area of the orifice. We can also do without wedge 34 and simply stop the advance of the welding wheels to a predetermined location, insofar as the plates are kept apart by the presence of depressions 26 forming spacers. Strictly speaking, account should be taken of the fact that the plate wings protrude a greater distance at the level of the orifices and provide for a cutting operation so that the wings have a straight edge, but this does not will in practice by always be necessary insofar as the intervals are thin (a few millimeters).

Du fait que les paires de plaques sont soudées entre elles par points au fond des dépressions 26, la pression du fluide circulant dans les intervalles A est sans effet sur l'échangeur.Because the pairs of plates are welded to each other by points at the bottom of the depressions 26, the pressure of the fluid flowing in the intervals A has no effect on the exchanger.

Par contre, lorsque le fluide circulant dans le intervalles B présente une certaine pression, on doit prévoir des plaques de soutien 36, 38 au voisinage des plaques d'échangeur situées aux extrémités (figure 6). Ces plaques de soutien sont juxtaposées, sans fixation, aux plaques d'échangeur de façon à permettre une dilatation différentielle, et sont réunies l'une à l'autre par des tirants 40, dimensionnés et répartis pour encaisser les efforts dûs à la pession du fluide circulant dans les intervalles B.On the other hand, when the fluid circulating in the intervals B presents a certain pressure, support plates 36, 38 must be provided in the vicinity of the exchanger plates situated at the ends (FIG. 6). These support plates are juxtaposed, without fastening, the heat exchanger plates so as to allow differential expansion, and are joined to each other by tie rods 4 0, sized and distributed to absorb the forces due to the Pession of the fluid circulating in the intervals B.

A partir du mode de réalisation de base qui vient d'être décrit, on a conçu diverses variantes, sans prétendre en avoir fait une exploration exhaustive, comme illustré aux figures 9 à 13.From the basic embodiment which has just been described, various variants have been designed, without claiming to have made an exhaustive exploration of them, as illustrated in FIGS. 9 to 13.

A la figure 9, seule une plaque sur deux comporte des ailes 18, 19, les autres plaques étant dépourvues d'ailes.In FIG. 9, only one plate out of two comprises wings 18, 19, the other plates being devoid of wings.

. Pour ce mode de réalisation, après avoir assemblé les plaques par paires, on rassemble les paires en soudant les ailes d'une plaque directement aux bords d'une plaque dépourvue d'ailes de la paire voisine.. For this embodiment, after having assembled the plates in pairs, the pairs are assembled by welding the wings of a plate directly to the edges of a plate devoid of wings of the neighboring pair.

Comme illustré, les plaques portant les ailes sont entièrement planes et les plaques dépourvues d'ailes portent les dépressions 26. On a ainsi deux plaques de type différent, mais sur lesquelles on effectue des opérations de conformage de nature différente ; pliage dans un cas, emboutissage dans l'autre.As illustrated, the plates carrying the wings are entirely flat and the plates devoid of wings carry the depressions 26. There are thus two plates of different type, but on which conforming operations of a different nature are carried out; folding in one case, stamping in the other.

A la figure 10, toutes les plaques d'échangeur sont identiques et portent une aile 18 sur un seul bord et des dépressions sur une partie de leur surface.In FIG. 10, all the exchanger plates are identical and have a wing 18 on a single edge and depressions on part of their surface.

Lors de l'assemblage par paires, on dispose les plaques tête-bêche, puis on rassemble les paires, comme précédemment, en soudant le bord des ailes sur le bord des plaques en vis à vis.When assembling in pairs, the plates are placed head to tail, then the pairs are assembled, as before, by welding the edge of the wings to the edge of the facing plates.

A la figure 11, les ailes sont prolongées par un rabat 42, et les extrémités de plaques dépourvues d'ailes comportent un prolongement 44. Les rabats et les prolongements sont soudés à plat par soudage électrique à la molette.In FIG. 11, the wings are extended by a flap 42, and the ends of plates devoid of wings have an extension 44. The flaps and the extensions are welded flat by electric welding with a seam.

Dans ce cas cependant, il conviendra de tenir compte des saillies représentées par les rabats et les prolongements pour l'assemblage des collecteurs demi-cylindriques pour le fluide circulant dans les intervalles A. A titre d'exemple, on peut prévoir des entailles régulièrement réparties le long du bord postérieur du collecteur, pour recevoir ces saillies.In this case, however, account should be taken of the projections represented by the flaps and the extensions for assembling the semi-cylindrical manifolds for the fluid flowing in the intervals A. By way of example, regularly distributed notches can be provided along the rear edge of the manifold, to receive these projections.

Selon la variante de la figure 12, les plaques d'échangeur sont totalement planes et lors de l'assemblage par paires, on interpose entre elles des entretoises métalliques 46 qui sont soudées par point aux deux plaques.According to the variant of Figure 12, the exchanger plates are completely flat and during assembly in pairs, is interposed therebetween metallic spacers 4 6 which are spot welded to both plates.

Selon la variante de la figure 13, les plaques sont du type à ondulations, les ondulations de l'une (48) ayant une orientation différente des ondulations (50) de la plaque adjacente.According to the variant of FIG. 13, the plates are of the corrugation type, the corrugations of one (48) having a different orientation from the corrugations (50) of the adjacent plate.

Les plaques sont réunies par paires par soudage à la molette le long de leur bord, comme il a été vu précédemment. On peut également prévoir de solidariser ou non les deux plaques par soudures par points dans les zones où le sommet des ondulations de l'une est en contact avec le fond des ondulations de l'aùtre, comme illustré par les points P à la figure.The plates are joined in pairs by seam welding along their edge, as seen above. It is also possible to provide or not to join the two plates by spot welds in the zones where the top of the undulations of one is in contact with the bottom of the undulations of the other, as illustrated by the points P in the figure.

La communauté de structure de ces diverses variantes est donc que les plaques sont assemblées par paires par soudure linéaire sans apport de métal dans deux zones extrêmes opposées, et que une plaque au moins dans chaque paire comporte une aile située dans au moins l'une de ces zones extrêmes et au voisinage de la soudure linéaire, repliée à l'équerre et raccordée dans sa zone marginale libre à une plaque en vis à vis d'une paire voisine, par soudure linéaire.The structural community of these various variants is therefore that the plates are assembled in pairs by linear welding without the addition of metal in two opposite end zones, and that at least one plate in each pair has a wing located in at least one of these extreme zones and in the vicinity of the linear weld, folded back to the square and connected in its free marginal zone to a plate opposite a neighboring pair, by linear weld.

Dans tout ce qui précède, on relevera les avantages essentiels de l'invention, évoqués ci-après, sans leur conférer un ordre d'importance particulier.

  • - L'ensemble des plaques d'échangeur forme un tout monobloc qui peut être traité et manipulé comme tel.
  • - Il n'est plus besoin d'enfermer l'ensembles des plaques dans une calandre puisque cet ensemble comporte par lui-même sa propre calandre. L'échangeur est par conséquent particulièrement léger.
  • - Toutes les soudures linéaires entre plaques sont directement accessibles depuis l'extérieur, aussi bien pour des besoins d'inspection que pour des réparations.
  • - Lorsque seul le fluide circulant dans les intervalles A est sous pression, il n'est pas besoin de prévoir de plaques de renfort assemblées par tirants.
  • - Les intervalles B sont dépourvus d'obstacles et accessibles via des orifices situés en alignement, de sorte que l'on peut y faire circuler des fluides chargés d'impuretés avec un faible risque de colmatage et, si de tels colmatages se produisent, leur nettoyage sera particulièrement aisé.
  • - La construction d'échangeurs se prête particulièrement bien à la préfabrication, à plusieurs niveaux;
    • a) formage des plaques d'échangeur,
    • b) assemblage des plaques par paires,
    • c) assemblage d'un nombre prédéterminé de plaques,
    • d) assemblage des collecteurs d'entrée/sortie pour le fluide "B".
In all of the foregoing, the essential advantages of the invention, mentioned below, will be noted, without giving them an order of particular importance.
  • - The set of exchanger plates forms a single unit which can be treated and handled as such.
  • - There is no longer any need to enclose all of the plates in a grille since this assembly has its own grille by itself. The exchanger is therefore particularly light.
  • - All linear welds between plates are directly accessible from the outside, both for inspection purposes and for repairs.
  • - When only the fluid circulating in the intervals A is under pressure, there is no need to provide reinforcement plates assembled by tie rods.
  • - The intervals B are free of obstacles and accessible via orifices located in alignment, so that it is possible to circulate therein fluids laden with impurities with a low risk of clogging and, if such clogging occurs, their cleaning will be particularly easy.
  • - The construction of exchangers is particularly suitable for prefabrication, on several levels;
    • a) forming the exchanger plates,
    • b) assembly of the plates in pairs,
    • c) assembly of a predetermined number of plates,
    • d) assembly of the inlet / outlet manifolds for the fluid "B".

D'autres possibilités apparaîtront à l'évidence à l'homme de métier.

  • - Lorsque la pression du fluide circulant dans les intervalles B est relativement faible, les plaques de renfort aux extrémités pourront être accrochées directement aux dernières plaques sans qu'il soit besoin de prévoir de tirants, les efforts de traction étant encaissés par la succession des ailes des plaques soudées les unes aux autres.
  • - Toutes les plaques étant en excellent contact thermique les unes avec les autres, leur température sera donc très uniforme et les phénomènes de dilatation différentielle sont négligeables.
  • - Toutes les soudures linéaires entre plaques peuvent être réalisées sur des machines automatiques, ce qui accroît la fiabilité pour un coût réduit.
Other possibilities will be obvious to those skilled in the art.
  • - When the pressure of the fluid flowing in the intervals B is relatively low, the reinforcement plates at the ends can be hung directly on the last plates without the need to provide tie rods, the traction forces being collected by the succession of the wings plates welded to each other.
  • - All the plates being in excellent thermal contact with each other, their temperature will therefore be very uniform and the phenomena of differential expansion are negligible.
  • - All linear welds between plates can be carried out on automatic machines, which increases reliability at a reduced cost.

Claims (12)

1. Echangeur à plaques comprenant une multiplicité de plaques métalliques (10-15) juxtaposées et séparées par des intervalles (A, B), un intervalle sur deux (A) étant destiné à la circulation d'un premier fluide et les autres intervalles (B) étant destinés à la circulation d'un second fluide sensiblement parallèlement au premier, chaque plaque étant reliée à sa périphérie aux deux plaques voisines de manière étanche, de manière à obturer, tout au moins partiellement lesdits intervalles (A, B) tout en ménageant des orifices d'admission et de sortie pour lesdits fluides, lesdites plaques étant assemblées par paires (10-11, 12-13, 14-15) par soudure linéaire (16, 17) dans deux zones extrêmes opposées des plaques de chaque paire,
caractérisé en ce qu'une plaque (14) au moins par paire comporte une aile (20), au moins dans l'une desdites zones extrêmes et au voisinage de ladite soudure (16), repliée sensiblement à l'équerre et raccordée dans sa zone marginale libre à une plaque (13) en vis-à-vis d'une paire voisine, par soudure linéaire.
1. Plate exchanger comprising a multiplicity of metal plates (10-15) juxtaposed and separated by intervals (A, B), one interval out of two (A) being intended for the circulation of a first fluid and the other intervals ( B) being intended for the circulation of a second fluid substantially parallel to the first, each plate being connected at its periphery to the two adjacent plates in a leaktight manner, so as to close, at least partially, said intervals (A, B) while providing inlet and outlet openings for said fluids, said plates being assembled in pairs (10-11, 12-13, 14-15) by linear welding (16, 17) in two opposite extreme zones of the plates of each pair ,
characterized in that a plate (14) at least in pairs comprises a wing (20), at least in one of said end zones and in the vicinity of said weld (16), folded back substantially square and connected in its free marginal zone to a plate (13) opposite a neighboring pair, by linear welding.
2. Echangeur selon la revendication 1, caractérisé en ce que les plaques d'une même paire (14-15) sont fixées l'une à l'autre par des points de soudure répartis sur leur surface.2. Exchanger according to claim 1, characterized in that the plates of the same pair (14-15) are fixed to each other by welding points distributed over their surface. 3. Echangeur selon la revendication 2, caractérisé en ce que lesdites plaques comportent des dépressions (26) et que lesdits points de soudure sont ménagés au fond desdites dépressions.3. Exchanger according to claim 2, characterized in that said plates have depressions (26) and that said weld points are formed at the bottom of said depressions. 4. Echangeur selon la revendication 2, caractérisé en ce que lesdites plaques sont planes et que lesdits points de soudure sont effectués via des entretoises (46) interposées entre lesdites plaques.4. Exchanger according to claim 2, characterized in that said plates are planar and that said welding points are made via spacers (46) interposed between said plates. 5. Echangeur selon la revendication 2, caractérisé en ce que lesdites plaques comportent des ondulations (48, 50) d'orientations différentes.5. Exchanger according to claim 2, characterized in that said plates have corrugations (48, 50) of different orientations. 6. Echangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que la soudure linéaire entre plaques d'une même paire est effectuée par soudage électrique à la molette (28, 29).6. Exchanger according to any one of the preceding claims, characterized in that the linear welding between plates of the same pair is carried out by electric welding with a thumbwheel (28, 29). 7. Echangeur selon la revendication 6, caractérisé en ce que ladite soudure linéaire entre plaques d'une même paire est localement interrompue de façon à ménager des orifices (25) pour un fluide circulant dans l'intervalle (A) entre lesdites plaques.7. Exchanger according to claim 6, characterized in that said linear weld between plates of the same pair is locally interrupted so as to provide orifices (25) for a fluid flowing in the gap (A) between said plates. 8. Echangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que la soudure linéaire entre l'aile d'une plaque et la plaque en vis-à-vis est effectuée à l'arc.8. Exchanger according to any one of the preceding claims, characterized in that the linear welding between the wing of a plate and the facing plate is carried out with an arc. 9. Echangeur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que chaque plaque comporte une aile dans ses deux zones extrêmes opposées.9. Exchanger according to any one of claims 1 to 8, characterized in that each plate has a wing in its two opposite end zones. 10. Echangeur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que chaque plaque comporte une aile dans une seule de ses deux zones extrêmes opposées.10. Exchanger according to any one of claims 1 to 8, characterized in that each plate has a wing in only one of its two opposite end zones. 11. Echangeur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que chaque paire est composée d'une plaque dépourvue d'ailes et d'une plaque comportant des ailes dans ses deux zones extrêmes opposées.11. Exchanger according to any one of claims 1 to 8, characterized in that each pair is composed of a plate devoid of wings and a plate comprising wings in its two opposite end zones. 12. Echangeur selon l'une quelconque des revendications 1 à 11, caractérisé en ce que chaque paire est composée d'une plaque pourvue de dépressions.12. Exchanger according to any one of claims 1 to 11, characterized in that each pair is composed of a plate provided with depressions.
EP85402573A 1984-12-21 1985-12-20 Plate heat exchanger Expired EP0186592B1 (en)

Applications Claiming Priority (2)

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FR8419707A FR2575279B1 (en) 1984-12-21 1984-12-21 PLATE HEAT EXCHANGER
FR8419707 1984-12-21

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EP0186592A1 true EP0186592A1 (en) 1986-07-02
EP0186592B1 EP0186592B1 (en) 1988-10-26

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FR2901016A1 (en) * 2006-05-12 2007-11-16 Kapp France Sa HEAT EXCHANGER WITH WELDED EXCHANGE PLATES
JP2009537006A (en) * 2006-05-12 2009-10-22 カルボーヌ・ロレーヌ・エキップマント・ジェニー・シミック Heat exchanger with welded heat exchange plate
CN101443619B (en) * 2006-05-12 2010-12-08 卡朋罗兰化工设备有限公司 Heat exchanger with welded heat exchange plates
FR2990148A1 (en) * 2012-05-03 2013-11-08 Ferri Jean Noel Fernandez Fabricating a heat exchanger circuit, comprises forming an exchange block with rectangular channels having a free passage leading to end of distribution boxes and padded alveolar ducts leading in side of distribution boxes
FR3079606A1 (en) * 2018-03-30 2019-10-04 Groupe H Labbe METHOD FOR ASSEMBLING A THERMAL EXCHANGER
EP4036511A1 (en) 2021-01-29 2022-08-03 Groupe H. Labbe Plate heat exchanger
FR3119447A1 (en) 2021-01-29 2022-08-05 Groupe H. Labbe plate heat exchanger

Also Published As

Publication number Publication date
FR2575279B1 (en) 1989-07-07
JPS61153500A (en) 1986-07-12
FR2575279A1 (en) 1986-06-27
EP0186592B1 (en) 1988-10-26
US4688631A (en) 1987-08-25
JPH0692877B2 (en) 1994-11-16
DE3565889D1 (en) 1988-12-01

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