FR2688582A1 - HEAT EXCHANGER WITH CURRENT CROSSES. - Google Patents
HEAT EXCHANGER WITH CURRENT CROSSES. Download PDFInfo
- Publication number
- FR2688582A1 FR2688582A1 FR9202953A FR9202953A FR2688582A1 FR 2688582 A1 FR2688582 A1 FR 2688582A1 FR 9202953 A FR9202953 A FR 9202953A FR 9202953 A FR9202953 A FR 9202953A FR 2688582 A1 FR2688582 A1 FR 2688582A1
- Authority
- FR
- France
- Prior art keywords
- flat plate
- plate
- corrugations
- exchanger according
- flaps
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- 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
Landscapes
- 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
Echangeur de chaleur du type à courants croisés, comportant un empilage d'éléments A, B, C identiques maintenus entre des poteaux P et constitués chacun d'une plaque ondulée 1 à ondulations parallèles entre elles, définissant ainsi des canaux, et d'une plaque plane 2. Chaque plaque plane 2 comporte à deux de ses extrémités opposées deux lignes de pliage 3, 4 parallèles à la direction des ondulations de la plaque ondulée 1 correspondante, de sorte à constituer à ces deux extrémités un rabat 5, les rabats 5 de la plaque plane 2 de chaque élément B, A étant fixés selon toute leur longueur, sans solution de continuité, sur les zones extrêmes de largeur correspondante 6 de la plaque plane 2 de l'élément voisin C, B.Cross-flow type heat exchanger, comprising a stack of identical elements A, B, C held between poles P and each consisting of a corrugated plate 1 with corrugations parallel to each other, thus defining channels, and of a flat plate 2. Each flat plate 2 has at two of its opposite ends two fold lines 3, 4 parallel to the direction of the corrugations of the corresponding corrugated plate 1, so as to constitute at these two ends a flap 5, the flaps 5 of the flat plate 2 of each element B, A being fixed along their entire length, without any break in continuity, on the extreme zones of corresponding width 6 of the flat plate 2 of the neighboring element C, B.
Description
Echangeur de chaleur à courants croisés.Cross flow heat exchanger.
La présente invention concerne un échangeur de chaleur du type à courants croisés, comportant un empilage d'éléments identiques maintenus entre des poteaux et constitués chacun d'une plaque ondulée à ondulations parallèles entre elles, définissant ainsi des canaux, et d'une plaque plane en contact d'un côté avec les fonds des ondulations précitées, et de l'autre côté avec les sommets des ondulations de la plaque ondulée suivante, ces dernières ondulations, également parallèles entre elles, s'étendant dans une direction perpendiculaire à celle des ondulations The present invention relates to a heat exchanger of the cross-flow type, comprising a stack of identical elements held between posts and each consisting of a corrugated plate with corrugations parallel to each other, thus defining channels, and a flat plate. in contact on one side with the bottoms of the aforementioned corrugations, and on the other side with the peaks of the corrugations of the following corrugated plate, the latter corrugations, also parallel to each other, extending in a direction perpendicular to that of the corrugations
de la plaque ondulée précédente.of the previous corrugated plate.
Dans ces échangeurs, les plaques ondulées et les plaques planes peuvent être par exemple en feuilles minces d'acier ou d'aluminium On comprend que les ondulations ménagent entre elles des canaux ouverts à leurs extrémités mais qui sont fermés d'un côté et d'autre par les plaques planes, ces dernières empêchant ainsi que les flux chaud et froid ne se mélangent Cependant un risque de communication In these exchangers, the corrugated plates and the flat plates may be for example thin sheets of steel or aluminum It is understood that the corrugations between them open channels at their ends but which are closed on one side and other by the flat plates, the latter thus preventing hot and cold flows from mixing However a risk of communication
entre ces deux flux subsiste aux extrémités de ces canaux. between these two flows remains at the ends of these channels.
En effet, dans le cas, par exemple, d'un bord de plaque plane s'étendant en biais, c'est-à-dire qui n'est pas Indeed, in the case, for example, of a flat plate edge extending obliquely, that is to say which is not
parfaitement parallèle aux ondulations de l'élément cor- perfectly parallel to the corrugations of the element cor-
respondant, l'un des fluides peut passer du canal adjacent à ce bord biais dans les extrémités des canaux de l'élément voisin, ce qui permet une communication entre les fluides respondant, one of the fluids can pass from the adjacent channel to this edge skew in the ends of the channels of the neighboring element, which allows a communication between the fluids
froid et chaud.cold and hot.
Cela est évidemment préjudiciable au rendement de l'échangeur, et est même inacceptable dans certaines applications, par exemple pour le conditionnement d'air dans This is obviously detrimental to the efficiency of the exchanger, and is even unacceptable in some applications, for example for the air conditioning in
les hôpitaux, o l'isolation entre les différents écoule- hospitals, where isolation between the different
ments doit être parfaite pour des raisons d'hygiène. must be perfect for reasons of hygiene.
Le but de la présente invention est de résoudre ce The object of the present invention is to solve this
problème, et à cet effet, un échangeur conforme à l'inven- problem, and for this purpose an interchange according to the invention
tion, du type général défini au début, est caractérisé en ce que chaque plaque plane comporte à deux de ses extrémités opposées deux lignes de pliage parallèles à la tion, of the general type defined at the beginning, is characterized in that each flat plate has at two of its opposite ends two fold lines parallel to the
direction des ondulations de la plaque ondulée correspon- direction of the undulations of the corrugated plate correspon-
dante, de sorte à constituer à ces deux extrémités un rabat recouvrant une ou plusieurs des ondulations extrêmes de cette dernière plaque, et en ce que les rabats de la plaque dante, so as to constitute at these two ends a flap covering one or more extreme corrugations of the latter plate, and in that the flaps of the plate
plane de chaque élément sont fixés selon toute leur lon- of each element are fixed in all their length.
gueur, sans solution de continuité, sur les zones extrêmes de largeur correspondante de la plaque plane de l'élément without continuity solution, on the extreme zones of corresponding width of the plane plate of the element
voisin.neighbour.
Ainsi ces rabats empêcheront toute fuite entre un canal extrême de la plaque plane d'un élément de l'empilage, et les extrémités des canaux de l'élément voisin Ils contribueront aussi à assurer une excellente rigidité et un Thus these flaps prevent leakage between an extreme channel of the flat plate of a stack element, and the ends of the channels of the neighboring element They will also contribute to ensure excellent rigidity and a
très bel aspect à l'ensemble de l'empilage. very nice aspect to the whole stack.
De préférence, les deux pliages précités s'effec- Preferably, the two folds mentioned above are
tuent chacun à 90 , de sorte que lesdits rabats s'étendent parallèlement à la plaque plane correspondante Bien entendu, on fera en sorte que l'espacement entre les deux dites lignes de pliage d'un rabat ne soit que très peu each of them at 90, so that said flaps extend parallel to the corresponding flat plate Of course, it will be ensured that the spacing between the two so-called folding lines of a flap is only very little
supérieur à la hauteur desdites ondulations. greater than the height of said undulations.
La fixation des rabats de la plaque plane d'un élément sur les zones extrêmes de largeur correspondante de la plaque plane de l'élément voisin peut se faire par tout moyen approprié, de préférence par collage, mais on peut Fixing the flaps of the flat plate of an element on the extreme zones of corresponding width of the flat plate of the neighboring element can be done by any appropriate means, preferably by gluing, but it is possible to
également envisager un masticage de type à haute températu- also consider a high temperature type filler
re, ou un soudage.re, or welding.
Pour éliminer totalement les risques de fuites entre canaux d'éléments voisins, on peut encore prévoir que les extrémités du ou des canaux qui sont recouverts par un rabat To completely eliminate the risk of leakage between channels of neighboring elements, it is also possible that the ends of the channel or channels that are covered by a flap
sont obturées, par exemple par un masticage. are closed, for example by a putty.
Un mode d'exécution de l'invention va maintenant être décrit ci-dessous à titre d'exemple nullement limitatif avec référence aux figures du dessin annexé dans lequel: la figure 1 représente trois éléments d'un empilage en vue en perspective éclatée; et la figure 2 montre un échangeur de chaleur conforme à l'invention après montage et serrage des éléments An embodiment of the invention will now be described below by way of non-limiting example with reference to the figures of the accompanying drawing in which: Figure 1 shows three elements of a stack in exploded perspective view; and FIG. 2 shows a heat exchanger according to the invention after assembly and tightening of the elements
entre les poteaux.between the poles.
Un échangeur de chaleur conforme à l'invention peut théoriquement être constitué par un empilage d'un nombre quelconque d'éléments A, B, C Sur la figure 1, on n'en a représenté que trois, ce qui est suffisant pour expliquer l'invention. Chacun de ces éléments est constitué d'une plaque ondulée 1 à ondulations parallèles entre elles, et d'une A heat exchanger according to the invention can theoretically be constituted by a stack of any number of elements A, B, C In FIG. 1, only three have been represented, which is sufficient to explain the 'invention. Each of these elements consists of a corrugated plate 1 with corrugations parallel to each other, and a
plaque plane 2 en contact avec les fonds f de ces ondula- flat plate 2 in contact with the funds f of these corrugated
tions Les sommets S de ces mêmes ondulations viennent en contact avec la plaque plane 2 de l'élément voisin lorsque tous les éléments de l'empilage sont serrés entre des plaques d'extrémité E, pour constituer le bloc compact The vertices S of these same corrugations come into contact with the plane plate 2 of the neighboring element when all the elements of the stack are clamped between end plates E, to form the compact block.
visible à la figure 2 Pour favoriser les échanges thermi- visible in Figure 2 to promote thermal exchanges
ques entre plaques planes 2 et plaques ondulées 1, les ondulations de ces dernières ont un profil trapézoïdal, c'est-à-dire que les fonds f et les sommets S sont plats et Between flat plates 2 and corrugated plates 1, the corrugations of the latter have a trapezoidal profile, that is to say that the bottoms f and the vertices S are flat and
constituent la petite base de chaque trapèze. constitute the small base of each trapeze.
Les extrémités des plaques planes 2 dont les bords The ends of flat plates 2 whose edges
sont parallèles aux ondulations de la plaque 1 correspon- are parallel to the corrugations of the plate 1 correspon-
dante sont pliées vers l'intérieur, deux fois à angle droit, selon les lignes de pliage 3 et 4, de sorte à constituer des rabats 5 La distance entre les lignes 3 et 4 n'est que très légèrement supérieure à la hauteur des trapèzes précités, de sorte que les rabats 5 restent parallèles au plan des plaques planes 2 Les rabats 5 sont suffisamment larges pour couvrir une ou plusieurs ondulations Avant serrage des différents éléments A, B, C, on enduit toute la surface des rabats 5 d'une colle appropriée, ou de tout autre moyen de fixation, ce qui fixera, sans solution de continuité, ces rabats 5 aux zones extrêmes correspondantes 6 du dos de la plaque plane 2 de l'élément voisin On obtiendra ainsi une parfaite isolation entre éléments successifs, sans fuites possibles, d'un élément à l'autre, au niveau des canaux extrêmes (ceux situés sous les rabats) Pour diminuer encore le risque de communication entre éléments voisins, on peut obturer les extrémités d'un ou de plusieurs de ces canaux extrêmes, par exemple à l'aide d'un mastic 7 Après montage, ces extrémités mastiquées des canaux se trouveront en outre recouvertes et protégées par les poteaux P. Enfin on peut noter que pour éviter les problèmes dus aux dilatations et aux tolérances de fabrication, les dimensions des plaques ondulées 1, vues en plan, sont choisies de façon à être légèrement inférieures à celles des The distance between the lines 3 and 4 is only slightly greater than the height of the trapeziums, which are folded inwards, twice at a right angle, along the fold lines 3 and 4, so as to constitute flaps. The flaps 5 are sufficiently wide to cover one or more corrugations. adhesive, or any other means of attachment, which will fix, without interruption, these flaps 5 to the corresponding extreme areas 6 of the back of the flat plate 2 of the neighboring element will thus obtain a perfect insulation between successive elements, without leaks, from one element to another, at the extreme channels (those located under the flaps) To further reduce the risk of communication between neighboring elements, we can close the ends of a u After mounting, these masticated ends of the channels will be further covered and protected by the posts P. Finally, it can be noted that to avoid the problems due to dilatations and manufacturing tolerances, the dimensions of the corrugated plates 1, seen in plan, are chosen so as to be slightly smaller than those of the
plaques planes 2.flat plates 2.
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9202953A FR2688582B1 (en) | 1992-03-12 | 1992-03-12 | CROSS CURRENT HEAT EXCHANGER. |
EP93400612A EP0560676A1 (en) | 1992-03-12 | 1993-03-10 | Cross-flow heat-exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9202953A FR2688582B1 (en) | 1992-03-12 | 1992-03-12 | CROSS CURRENT HEAT EXCHANGER. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2688582A1 true FR2688582A1 (en) | 1993-09-17 |
FR2688582B1 FR2688582B1 (en) | 1994-12-09 |
Family
ID=9427612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9202953A Expired - Fee Related FR2688582B1 (en) | 1992-03-12 | 1992-03-12 | CROSS CURRENT HEAT EXCHANGER. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0560676A1 (en) |
FR (1) | FR2688582B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19507315A1 (en) * | 1995-03-02 | 1996-09-05 | Emitec Emissionstechnologie | Cross flow heat exchanger |
IT1279041B1 (en) * | 1995-05-03 | 1997-12-04 | Enel Spa | PLATE HEAT EXCHANGER |
CN110863607A (en) * | 2019-12-23 | 2020-03-06 | 北京九州动脉隧道技术有限公司 | Steel plate structure |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2961222A (en) * | 1957-12-06 | 1960-11-22 | Trane Co | Heat exchanger |
GB929893A (en) * | 1960-11-18 | 1963-06-26 | Parsons C A & Co Ltd | Improvements in and relating to plate type heat exchangers |
US3460611A (en) * | 1967-10-06 | 1969-08-12 | Gen Motors Corp | Heat exchanger of plate fin modules |
EP0044561A2 (en) * | 1980-07-21 | 1982-01-27 | MüANYAGIPARI KUTATO INTEZET | Heat exchanger, in particular for heat exchange between gaseous fluids |
US4858685A (en) * | 1982-12-06 | 1989-08-22 | Energigazdalkodasi Intezet | Plate-type heat exchanger |
-
1992
- 1992-03-12 FR FR9202953A patent/FR2688582B1/en not_active Expired - Fee Related
-
1993
- 1993-03-10 EP EP93400612A patent/EP0560676A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2961222A (en) * | 1957-12-06 | 1960-11-22 | Trane Co | Heat exchanger |
GB929893A (en) * | 1960-11-18 | 1963-06-26 | Parsons C A & Co Ltd | Improvements in and relating to plate type heat exchangers |
US3460611A (en) * | 1967-10-06 | 1969-08-12 | Gen Motors Corp | Heat exchanger of plate fin modules |
EP0044561A2 (en) * | 1980-07-21 | 1982-01-27 | MüANYAGIPARI KUTATO INTEZET | Heat exchanger, in particular for heat exchange between gaseous fluids |
US4858685A (en) * | 1982-12-06 | 1989-08-22 | Energigazdalkodasi Intezet | Plate-type heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
EP0560676A1 (en) | 1993-09-15 |
FR2688582B1 (en) | 1994-12-09 |
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ST | Notification of lapse |