EP0099806B1 - Heat exchanger with tubes locked to the tube end plate - Google Patents

Heat exchanger with tubes locked to the tube end plate Download PDF

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Publication number
EP0099806B1
EP0099806B1 EP19830401402 EP83401402A EP0099806B1 EP 0099806 B1 EP0099806 B1 EP 0099806B1 EP 19830401402 EP19830401402 EP 19830401402 EP 83401402 A EP83401402 A EP 83401402A EP 0099806 B1 EP0099806 B1 EP 0099806B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tube
plate
stop members
tubes
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.)
Expired
Application number
EP19830401402
Other languages
German (de)
French (fr)
Other versions
EP0099806A3 (en
EP0099806A2 (en
Inventor
Jose Luis Diaz Medrano
Jose Luis Solis Sobrino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RADIADORES PUMA CHAUSSON SA
Original Assignee
RADIADORES PUMA CHAUSSON SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES51408882 priority Critical
Priority to ES514088 priority
Application filed by RADIADORES PUMA CHAUSSON SA filed Critical RADIADORES PUMA CHAUSSON SA
Publication of EP0099806A2 publication Critical patent/EP0099806A2/en
Publication of EP0099806A3 publication Critical patent/EP0099806A3/en
Application granted granted Critical
Publication of EP0099806B1 publication Critical patent/EP0099806B1/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/04Arrangements for sealing elements into header boxes or end plates
    • F28F9/06Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F28F9/14Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/32Safety or protection arrangements; Arrangements for preventing malfunction for limiting movements, e.g. stops, locking means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00Fastening; Joining
    • F28F2275/06Fastening; Joining by welding
    • F28F2275/065Fastening; Joining by welding by ultrasonic or vibration welding

Description

  • La présente invention concerne un échangeur de chaleur du type à tubes et ailettes dont les tubes sont engagés dans des plaques collectrices auxquelles ils sont reliés par des collets ou douilles en matière élastique.The present invention relates to a heat exchanger of the tube and fin type, the tubes of which are engaged in collecting plates to which they are connected by collars or sockets made of elastic material.
  • Les échangeurs réalisés de cette façon donnent satisfaction mais ils nécessitent souvent de prévoir des joues latérales reliant les plaques collectrices ou les boîtes à eau afin d'empêcher que des sollicitations mécaniques provoquent un déplacement graduel des ensembles plaques collectrices-boîtes à eau par rapport aux tubes. Par ailleurs, il est souhaitable, notamment pour réduire le prix de revient des appareils, de ne pas utiliser de joues latérales.The exchangers produced in this way are satisfactory, but they often require the provision of lateral cheeks connecting the manifold plates or the water boxes in order to prevent mechanical stresses causing a gradual displacement of the manifold plate-water box assemblies relative to the tubes. . Furthermore, it is desirable, in particular to reduce the cost price of the devices, not to use side cheeks.
  • Pour résoudre ce problème, il a déjà été proposé d'évaser la partie des tubes qui traverse la plaque collectrice et qui s'étend au-delà de celle-ci. L'évasement ou gonflage de l'extrémité des tubes constitue une opération qui est relativement longue et donc coûteuse. De plus, cet évasement est incompatible avec l'emploi de plaques collectrices déjà assemblées aux boîtes.To solve this problem, it has already been proposed to flare the part of the tubes which crosses the collector plate and which extends beyond the latter. The flaring or inflation of the end of the tubes constitutes an operation which is relatively long and therefore expensive. In addition, this flare is incompatible with the use of manifold plates already assembled to the boxes.
  • L'invention résout le problème exposé en créant un nouvel échangeur de chaleur à tubes verrouillés au collecteur.The invention solves the problem exposed by creating a new heat exchanger with tubes locked to the collector.
  • Conformément à l'invention, l'échangeur de chaleur à tubes verrouillés au collecteur, comportant des ailettes enfilées sur les tubes qui sont eux-mêmes engagés dans des collets en matière élastique disposés dans les passages de tube d'une plaque collectrice, est caractérisé par des éléments d'arrêt présentant au moins un trou de diamètre plus petit que le diamètre extérieur des tubes, ledit élément d'arrêt étant enfilé à force sur l'extrémité saillant dans la plaque collectrice d'au moins certains des tubes auxquels elle est reliée.According to the invention, the heat exchanger with tubes locked to the collector, comprising fins threaded on the tubes which are themselves engaged in collars of elastic material arranged in the tube passages of a manifold plate, is characterized by stop elements having at least one hole with a diameter smaller than the outside diameter of the tubes, said stop element being force-fitted on the projecting end in the collector plate of at least some of the tubes to which it is connected.
  • Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit.Various other characteristics of the invention will also emerge from the detailed description which follows.
  • Des formes de réalisation de l'objet de l'invention sont représentées, à titre d'exemples non limitatifs, au dessin annexé.
    • La fig. 1 est une coupe-élévation, partielle et schématique d'un échangeur de chaleur réalisé conformément à l'invention.
    • La fig. 2 est une coupe-élévation, à plus grande échelle, illustrant une caractéristique de l'invention.
    • La fig. 3 est une vue de dessus d'un des éléments apparaissant à la fig. 1.
    • La fig. 4 est une vue analogue à la fig. 3 montrant une variante.
    • La fig. 5 est une coupe-élévation analogue à la fig. 1 d'un développement de l'invention.
    • La fig. 6 est une coupe vue sensiblement suivant la ligne VI-VI de la fig. 5.
    • La fig. 7 est une coupe-élévation partielle très agrandie d'un détail apparaissant à la fig. 5.
    • La fig. 8 est un plan partiel explicatif.
    • La fig. 9 est une coupe-élévation analogue aux fig. 1 et 5 d'une autre variante.
    • La fig. 10 est une perspective d'une variante.
    • La fig. 11 est une coupe transversale analogue à la fig. 6 mettant en oeuvre la variante de la lig. 10.
    Embodiments of the object of the invention are shown, by way of nonlimiting examples, in the accompanying drawing.
    • Fig. 1 is a sectional elevation, partial and schematic of a heat exchanger produced in accordance with the invention.
    • Fig. 2 is a sectional elevation, on a larger scale, illustrating a characteristic of the invention.
    • Fig. 3 is a top view of one of the elements appearing in FIG. 1.
    • Fig. 4 is a view similar to FIG. 3 showing a variant.
    • Fig. 5 is a sectional elevation similar to FIG. 1 of a development of the invention.
    • Fig. 6 is a section seen substantially along line VI-VI of FIG. 5.
    • Fig. 7 is a very enlarged partial sectional elevation of a detail appearing in FIG. 5.
    • Fig. 8 is a partial explanatory plan.
    • Fig. 9 is a sectional elevation similar to FIGS. 1 and 5 of another variant.
    • Fig. 10 is a perspective of a variant.
    • Fig. 11 is a cross section similar to FIG. 6 implementing the variant of the lig. 10.
  • Au dessin, 1 désigne des tubes de circulation de section ronde d'un échangeur de chaleur sur lesquels sont enfilées des ailettes de refroidissement 2. De préférence, les ailettes 2 sont repliées sur leurs petits côtés comme montré en 2a afin que les ailettes successives soient en contact les unes avec les autres pour délimiter des guides latéraux pour l'air devant traverser l'échangeur.In the drawing, 1 denotes circulation tubes of round section of a heat exchanger on which are threaded cooling fins 2. Preferably, the fins 2 are folded over their short sides as shown in 2a so that the successive fins are in contact with each other to delimit lateral guides for the air which must pass through the exchanger.
  • De façon connue en soi, l'échangeur comporte des plaques collectrices 3 qui, dans le mode de réalisation des fig. 1 à 8, sont en matière synthétique. Les plaques collectrices 3 délimitent des passages de tubes 1 dans lesquels sont engagés des collets 5 déformables, saillant d'une feuille ou plaque élastique 6, par exemple en caoutchouc. Les tubes 1 sont engagés à force dans les collets 5 pour faire saillie au-dessus de ceux-ci.In a manner known per se, the exchanger comprises manifold plates 3 which, in the embodiment of FIGS. 1 to 8, are made of synthetic material. The collector plates 3 delimit passages of tubes 1 in which are engaged deformable collars 5, projecting from a sheet or elastic plate 6, for example made of rubber. The tubes 1 are forcibly engaged in the collars 5 to protrude above them.
  • Des éléments d'arrêt 7 sont ensuite mis en place sur certaines au moins des extrémités saillantes des tubes 1. Les éléments d'arrêt sont, par exemple, placés sur les deux derniers rangs de tubes comme illustré à la fig. 1. Ils pourraient évidemment être placés sur tous les tubes mais cela n'est généralement pas nécessaire. Les éléments d'arrêt illustrés aux fig. 1 et 4 sont constitués par des rondelles, par exemple de forme circulaire, qui présentent en leur centre un trou 8.Stop elements 7 are then placed on at least some of the projecting ends of the tubes 1. The stop elements are, for example, placed on the last two rows of tubes as illustrated in FIG. 1. They could obviously be placed on all the tubes but this is generally not necessary. The stop elements illustrated in fig. 1 and 4 consist of washers, for example of circular shape, which have a hole 8 in their center.
  • A la fig. 3, des découpes radiales 9 partent du trou 8 et s'étendent sur une partie de la rondelle.In fig. 3, radial cutouts 9 start from the hole 8 and extend over part of the washer.
  • A la fig. 4, des encoches 10 sont prévues à partir du trou 8.In fig. 4, notches 10 are provided from the hole 8.
  • Dans les deux cas les rondelles délimitent ainsi des pattes 11 à bords vifs.In both cases, the washers thus define tabs 11 with sharp edges.
  • Les éléments d'arrêt peuvent être plans, mais de préférence ils présentent une forme hémisphérique dont la convexité est tournée vers le haut. Le diamètre du trou 8 est plus petit que le diamètre extérieur des tubes 1.The stop elements may be planar, but preferably they have a hemispherical shape whose convexity is turned upwards. The diameter of the hole 8 is smaller than the outside diameter of the tubes 1.
  • Les éléments d'arrêt sont enfoncés à force sur les extrémités des tubes 1 pour serrer fortement la paroi de ceux-ci en même temps que leur dessous déforme la partie saillante 5a (fig. 2) des collets 5.The stop elements are force-fitted onto the ends of the tubes 1 in order to tighten the wall of these strongly at the same time as their underside deforms the projecting part 5a (FIG. 2) of the collars 5.
  • La fig. 2 montre aussi que le bord périphérique 7a des éléments d'arrêt plans appuie avantageusement sur le dessus de la plaque collectrice 3. Les bords vifs 11 des éléments d'arrêt ont tendance à s'encastrer dans la paroi des tubes 1, principalement si ces tubes tendaient à être déplacés vers le bas par rapport à la plaque collectrice 3. On est assuré de cette façon que les tubes sont parfaitement immobilisés par rapport à la plaque collectrice.Fig. 2 also shows that the peripheral edge 7a of the planar stop elements advantageously presses on the top of the collector plate 3. The sharp edges 11 of the stop elements tend to become embedded in the wall of the tubes 1, mainly if these tubes tended to be moved down relative to the collector plate 3. It is ensured in this way that the tubes are perfectly immobilized relative to the collector plate.
  • Dans le mode de réalisation décrit, lorsque les éléments d'arrêt 7 ont été mis en place, on monte sur la plaque collectrice 3 une boîte à eau 12 et le bord 12a de celle-ci est fixé, par exemple soudé par vibrations, sur le bord périphérique correspondant à la plaque collectrice. Dans certains cas, pour augmenter les cadences de fabrication, il est avantageux de réunir l'ensemble plaques collectrices 3-boîte à eau 12 avant d'engager les tubes 1 dans les collets 5 saillant de la feuille en matière élastique 6. Dans ce cas et comme l'illustrent les fig. 5 à 8, il est avantageux de constituer les éléments d'arrêt sous la forme de plaquettes 7,, 7z ou 7'z de la fig. 10 dans lesquelles sont pratiqués les trous 8 et les découpes 9 ou les encoches 10 décrits dans ce qui précède.In the embodiment described, when the stop elements 7 have been put in place, a water box 12 is mounted on the collecting plate 3 and the edge 12a thereof is fixed, for example welded by vibration, to the peripheral edge corresponding to the collector plate. In certain cases, in order to increase the production rates, it is advantageous to assemble the assembly of collector plates 3-water box 12 before engaging the tubes 1 in the collars 5 projecting from the sheet of elastic material 6. In this case and as illustrated in figs. 5 to 8, it is advantageous to constitute the rear elements rêt in the form of plates 7 ,, 7 z or 7 ' z of FIG. 10 in which the holes 8 and the cutouts 9 or the notches 10 described in the above are made.
  • A la fig. 10 la plaquette 72 comporte des bords tombés 10g.In fig. 10 the plate 7 2 has fallen edges 10g.
  • On prévoit aussi avantageusement au moins un trou supplémentaire de centrage 13 correspondant à un pion 14 saillant de la plaque collectrice 3. Par ailleurs, on délimite une encoche ou rainure 15 dans une partie au moins du bord périphérique de la boîte à eau 12 pour recouvrir le bord de la plaquette 71 , par exemple sur trois côtés comme illustré en 1 5a à la fig. 8 ou deux côtés comme montré à la fig. 11. De plus, on munit l'intérieur de la boîte à eau 12 de chandelles 17 correspondant aux pions 14.There is also advantageously provided at least one additional centering hole 13 corresponding to a pin 14 projecting from the collector plate 3. Furthermore, a notch or groove 15 is defined in at least part of the peripheral edge of the water box 12 to cover the edge of the plate 7 1 , for example on three sides as illustrated in 1 5a in fig. 8 or two sides as shown in fig. 11. In addition, the inside of the water box 12 is fitted with candles 17 corresponding to the pins 14.
  • A la fig. 11 les chandelles peuvent être omises.In fig. 11 candles may be omitted.
  • Lorsqu'on procède au soudage de la boîte à eau par vibrations, le bord de celle-ci est soudé au bord de la plaque collectrice et il en est de même de l'extrémité de la chandelle 17 qui est soudée au pion 14 comme l'illustre la fig. 7. On voit par ce qui précède que la plaque constituant l'élément d'arrêt est alors encastrée entre la plaque collectrice et la boîte à eau réunies entre elles.When the water box is welded by vibration, the edge of the latter is welded to the edge of the collector plate and the same is true of the end of the jack 17 which is welded to the pin 14 like the 'illustrates fig. 7. We see from the above that the plate constituting the stop element is then embedded between the collector plate and the water box joined together.
  • Le montage de l'échangeur peut alors être effectué en enfonçant à force les tubes 1 du faisceau échangeur préalablement préparé, c'est-à-dire muni des ailettes 2 dans les collets 5 et les trous 8 de l'élément d'arrêt dont le mode d'action est ensuite exactement le même que celui décrit dans ce qui précède.The assembly of the exchanger can then be carried out by forcing the tubes 1 of the previously prepared exchanger bundle, that is to say fitted with fins 2 in the collars 5 and the holes 8 of the stop element, the mode of action is then exactly the same as that described in the foregoing.
  • Les exemples ci-dessus illustrent la mise en oeuvre de l'invention dans le cas où la plaque collectrice est en matière synthétique. L'invention peut être mise en oeuvre également lorsque la plaque collectrice est métallique. Dans ce cas, les éléments d'arrêt figurés sous la forme de rondelles 7 sont mis en place sur les extrémités des tubes 1 exactement comme décrit dans ce qui précède.The above examples illustrate the implementation of the invention in the case where the collector plate is made of synthetic material. The invention can also be implemented when the collector plate is metallic. In this case, the stop elements shown in the form of washers 7 are placed on the ends of the tubes 1 exactly as described in the foregoing.
  • I peut être avantageux, lorsque la plaque collectrice 31 est en métal, que la feuille 6 en matière souple élastique formant les collets 5 soit placée sur la face de ladite plaque collectrice qui est tournée vers la boîte à eau 12. C'est ce cas particulier qui est représenté à la fig. 9.I can be advantageous, when the collector plate 3 1 is made of metal, that the sheet 6 of flexible elastic material forming the collars 5 is placed on the face of the said collector plate which faces the water box 12. This is what particular case which is shown in fig. 9.
  • Dans cette réalisation, la boîte à eau peut être en matière synthétique ou en métal et avantageusement assemblée à la plaque collectrice par des moyens mécaniques, par exemple une pièce de sertissage 18.In this embodiment, the water box can be made of synthetic material or metal and advantageously assembled with the collecting plate by mechanical means, for example a crimping piece 18.

Claims (12)

1. Heat exchanger with tubes locked to the tube end plate comprising fins (2) engaged on the tubes (1) which are themselves engaged into resilient material collars (5) placed into the tube passages of a tube end plate (3), characterized by stop members (7) having at least one hole (8) of a diameter smaller than outer diameter of the tubes, said stop members being forcibly engaged on the end protruding in the tube end plate of at least some of the tubes to which it is connected.
2. Heat exchanger according to claim 1, characterized in that the stop members (7) have radial cuts or notches (10) forming lugs (11) therebetween, which lugs bear on the wall of the tubes.
3. Heat exchanger according to claim 2, characterized in that the end of the lugs (11) of the stop members (7) has a sharp edge.
4. Heat exchanger according to one of claims 1 to 3, characterized in that the stop members (7) are in the shape of washers or small plates.
5. Heat exchanger according to one of claims 1 to 4, characterized in that the stop members (7) are plane or slightly hemispherical, their concavity being then turned towards the wall of the tube end plate (3) facing a water box.
6. Heat exchanger according to one of claims 4 or 5, characterized in that the stop members (7) in the shape of small plates delimit a plurality of holes, the position of which corresponds to that of a plurality of tube passages of the corresponding tube end plate.
7. Heat exchanger according to one of claims 1 to 6, characterized by encasing means for the stop members (7) fixedly maintained within the unit made by the tube end plate (3) and a water box (12) previously connected together.
8. Heat exchanger according to claim 7, characterized in that the stop members (7) are maintained in the notch (10) or groove formed between the tube end plate and the water box (12) upon connection of these two parts.
9. Heat exchanger according to one of claims 1 to 8, characterized in that the stop member (7) has at least one further hole (13) corresponding to a centering stud (14), which stud is of the tube end plate (3), this stud being connected through soldering to a stay (17) of the water box.
10. Heat exchanger according to one of claims 1 to 9, characterized in that the stop members (7) are engaged on tubes passing in collars made of resilient material, which collars being themselves maintained in a metal tube end plate, said collars being connected by a sheet placed on the face of the tube end plate turned towards the water box.
11. Heat exchanger according to one of claims 4to 10, characterized in that the small plates forming the stop members have bent edges (1 Oa).
12. Heat exchanger according to one of claims 1 to 11, characterized in that it comprises fins the smaller sides (2a) of which are bent over to come into contact with an adjacent fin.
EP19830401402 1982-07-16 1983-07-07 Heat exchanger with tubes locked to the tube end plate Expired EP0099806B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES51408882 1982-07-16
ES514088 1982-07-16

Publications (3)

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EP0099806A2 EP0099806A2 (en) 1984-02-01
EP0099806A3 EP0099806A3 (en) 1984-03-28
EP0099806B1 true EP0099806B1 (en) 1985-07-03

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EP19830401402 Expired EP0099806B1 (en) 1982-07-16 1983-07-07 Heat exchanger with tubes locked to the tube end plate

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EP (1) EP0099806B1 (en)
BR (1) BR8303785A (en)
DE (2) DE99806T1 (en)
FR (1) FR2530328B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3247502C2 (en) * 1982-12-22 1985-05-09 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De
FR2578968B1 (en) * 1985-03-15 1989-01-13 Chausson Usines Sa DEVICE FOR LOCKING TUBES ON AT LEAST ONE COLLECTOR PLATE OF A HEAT EXCHANGER, AND ITS APPLICATION TO A HEAT EXCHANGER WITHOUT SIDE CHEEKS
JPH0271097A (en) * 1988-09-06 1990-03-09 Diesel Kiki Co Ltd Heat exchanger
AT84141T (en) * 1989-04-20 1993-01-15 Balcke Duerr Ag Heat exchanger.
US7712327B2 (en) * 2007-03-19 2010-05-11 Colmac Coil Manufacturing, Inc. Heat exchanger and method for defrosting a heat exchanger
CN106705703A (en) * 2015-08-03 2017-05-24 丹佛斯微通道换热器(嘉兴)有限公司 Heat exchanger

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH454931A (en) * 1966-04-01 1968-04-30 Sulzer Ag Heat exchanger
GB1255479A (en) * 1968-01-05 1971-12-01 Ft Products Ltd A fastening assembly
FR2031669A5 (en) * 1969-02-03 1970-11-20 Chausson Usines Sa
FR2050325B1 (en) * 1969-07-23 1973-12-21 Chausson Usines Sa
DE2302771A1 (en) * 1973-01-20 1974-08-01 Sueddeutsche Kuehler Behr PIPE HEAT EXCHANGER
FR2380488B1 (en) * 1977-02-15 1981-10-02 Hamon Sobelco Sa
FR2389306A7 (en) * 1977-04-30 1978-11-24 Sueddeutsche Kuehler Behr HEAT EXCHANGER PROVIDED IN A CONTAINER CONTAINING A COOLING FLUID, IN PARTICULAR OIL COOLER
DE3004837C2 (en) * 1980-02-09 1983-09-15 Langbein & Engelbracht Gmbh & Co, Kg Bau Lufttechnischer Anlagen, 4630 Bochum, De
FR2484071B1 (en) * 1980-06-05 1985-12-13 Valeo Hole plate for a heat exchanger with fluid circulation tubes
GB2082312A (en) * 1980-08-21 1982-03-03 Imi Radiators Header tank construction

Also Published As

Publication number Publication date
FR2530328A1 (en) 1984-01-20
EP0099806A3 (en) 1984-03-28
EP0099806A2 (en) 1984-02-01
FR2530328B1 (en) 1987-06-05
DE3360352D1 (en) 1985-08-08
DE99806T1 (en) 1984-09-27
BR8303785A (en) 1984-02-21

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