BE621402A - - Google Patents

Info

Publication number
BE621402A
BE621402A BE621402DA BE621402A BE 621402 A BE621402 A BE 621402A BE 621402D A BE621402D A BE 621402DA BE 621402 A BE621402 A BE 621402A
Authority
BE
Belgium
Prior art keywords
radiator
radiator according
tubular member
fins
tubular
Prior art date
Application number
Other languages
French (fr)
Publication of BE621402A publication Critical patent/BE621402A/fr

Links

Classifications

    • 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
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316Assemblies of conduits connected to common headers, e.g. core type radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Resistance Heating (AREA)

Description

       

   <Desc/Clms Page number 1> 
 



    *Radiateur   pour chauffage de locaux et appartements". 



   On sait que le rendement d'un radiateur pour le   chauf-   tage de pièces et autres locaux dépend dans une large Meure de   l'efficacité   de la surface d'échange thermique entre le   radia..     teur   et l'air. 



   Le radiateur suivant la présente invention est   consti-   tué par un ou plusieurs éléments   tabulaires   verticaux dont chacun est muni   d'ailettes   en saillie   angulairement   espacées autour de 

 <Desc/Clms Page number 2> 

      récent tubulaire et   s'étendant   dans la direction de sa longue Une telle disposition fournit un rendement élevé de chauffage pour une dimension de radiateur relativement petite.      



   Dans la forme de réalisation préférée, les ailettes ne se trouvent pas dans des plans axiaux mais suivent des circuits hélicoïdaux de pas très allongé, c'est-à-dire ayant une   inclinai-   son de quelques degrés seulement, et en tous les cas moins de 45 , par rapport à l'axe de l'élément tubulaire. Si un tel élé- ment de radiateur est disposé avec son axe sensiblement vertical,   l'air   qui, par   conveotion,   est mis en circulation ascendante entre les ailettes, est dévié le long du circuit   hélicoïdal   en- tre les ailettes et, en conséquence, est projeté vers l'extérieur d'une manière centrifuge. Un renouvellement continu de l'air entre les ailettes est ainsi produit.

   Ce renouvellement continu de l'air en contact avec la surface chaude de l'élément a l'ef- fet que la différence moyenne de température entre l'air et l'élément est plus élevée que dans des radiateurs avec des ailet- tes rectilignes; l'échange de chaleur est en conséquence meil- leur, c'est-à-dire que pour la même température de l'agent de chauffage, le radiateur est plus efficace. 



   Afin que l'invention soit mieux comprise, plusieurs exemples de radiateurs incorporant l'invention seront maintenant décrits en référence au dessin annexé, dans lequel ; - la figure 1 est une vue en élévation latérale d'un élément de radiateur ; - la figure 2 est une coupe transversale à travers un élément du type montré sur la figure 1 ; - la figure 3 montre un radiateur consistant en un certain nombre d'éléments tubulaires ; 

 <Desc/Clms Page number 3> 

 - la figure 4 montre un radiateur consistant en un élément unique ;  ;et   - la figure 5 montre une variante d'un élément de ra-   diateur.   



   L'élément   représenta   sur les figures 1 et 2 est cons- titué par un organe tubulaire central 1 sur lequel sont dispo-   odes     d'une   manière hélicoïdale un certain nombre d'ailettes 2   monobloo     avec   le noyau   tubulaire,   Cet élément   tubulaira   muni   d'ailettes   peut être fabrique par des procèdes conçus, par exemple par extrusion   d'aluminium     ou   d'un alliage d'alu- minium dans un appareil à extrusion   comprenant   des rainures   hélicoïdales.   



   Le   tube à   ailettes, qui   peut   être   fabriqué   suivant   des   barres de toutes   longueurs,   peut être découpé suivant des portions de la longueur désirée pour   fabriquer   les   radiateurs.   



   La figure ? montre un   radiateur &   eau chaude ou à vapeur ayant un certain nombre d'éléments radiants ayant des tubulures d'entrée et de sortie   communes,   respectivement 4 et 5. 



   La figure 4 montre un   radiateur   consistant en un élé- ment radiant unique chauffé par une   résistance   électrique dis- posée dans la cavité axiale, le radiateur étant   complémentaire    ment utilisé en tant que   lampadaire.     L'abat-jour 3   sert à ré- fléchir la lumière et   également   à dévier le courant   ascendant   d'air chaud. 



   La figure 5   montre   une forme de réalisation   d'un   élément de radiateur qui est plus facile à fabriquer que celui de la figure : en raison du fait que les ailettes 2 sont dans des plans axiaur   verticaux.   



   Quoique dans les exemples décrits ci-dessus, les ai-   lottes   soient obtenues   directement   par   extrusion, formant   un 

 <Desc/Clms Page number 4> 

 corps commun avec l'élément tubulaire, il est clair qu'elles peuvent être fixées à cet élément de bien d'autres   manières.   



  En outre, elles   peuvert   également avoir différentes formes, par exemple avoir une section transversale concave.



   <Desc / Clms Page number 1>
 



    * Radiator for heating premises and apartments ".



   It is known that the efficiency of a radiator for heating rooms and other premises depends to a large extent on the efficiency of the heat exchange surface between the radiator and the air.



   The radiator according to the present invention is constituted by one or more vertical tubular elements each of which is provided with projecting fins angularly spaced around it.

 <Desc / Clms Page number 2>

      recent tubular and extending in the direction of its long. Such an arrangement provides high heating efficiency for a relatively small radiator size.



   In the preferred embodiment, the fins do not lie in axial planes but follow helical circuits of very elongated pitch, that is to say having an inclination of only a few degrees, and in any case less. of 45, relative to the axis of the tubular element. If such a radiator element is arranged with its axis substantially vertical, the air which, by design, is circulated upward between the fins, is deflected along the helical circuit between the fins and, consequently, is projected outwards in a centrifugal manner. A continuous renewal of the air between the fins is thus produced.

   This continuous renewal of the air in contact with the hot surface of the element has the effect that the average temperature difference between the air and the element is higher than in radiators with rectilinear fins. ; the heat exchange is consequently better, ie for the same temperature of the heating medium, the radiator is more efficient.



   In order for the invention to be better understood, several examples of radiators incorporating the invention will now be described with reference to the appended drawing, in which; - Figure 1 is a side elevational view of a radiator element; FIG. 2 is a cross section through an element of the type shown in FIG. 1; - Figure 3 shows a radiator consisting of a number of tubular elements;

 <Desc / Clms Page number 3>

 - Figure 4 shows a radiator consisting of a single element; and - Figure 5 shows a variant of a radiator element.



   The element shown in Figures 1 and 2 is constituted by a central tubular member 1 on which are arranged in a helical manner a number of fins 2 integral with the tubular core, This tubular element will be provided with ' The fins can be fabricated by designed methods, for example, by extruding aluminum or an aluminum alloy in an extrusion apparatus comprising helical grooves.



   The finned tube, which can be fabricated into bars of any length, can be cut into portions of the desired length to fabricate the radiators.



   The figure ? shows a hot water or steam radiator having a number of radiant elements having common inlet and outlet pipes, respectively 4 and 5.



   FIG. 4 shows a radiator consisting of a single radiant element heated by an electrical resistance arranged in the axial cavity, the radiator being complementary being used as a street lamp. Shade 3 serves to reflect the light and also to deflect the upward flow of warm air.



   Figure 5 shows an embodiment of a radiator element which is easier to manufacture than that of the figure: due to the fact that the fins 2 are in vertical axial planes.



   Although in the examples described above, the alotts are obtained directly by extrusion, forming a

 <Desc / Clms Page number 4>

 common body with the tubular element, it is clear that they can be attached to this element in many other ways.



  In addition, they can also have different shapes, for example have a concave cross section.


    

Claims (1)

REVENDICATIONS 1, Un radiateur, caractérisa en ce qu'il comprend un organe tubulaire. CLAIMS 1, A radiator, characterized in that it comprises a tubular member. 2. Un radiateur selon la revendication 1, caractériel en ce que les ailettes sont enroulées en hélice 8 à long pas. 2. A radiator according to claim 1, caractériel in that the fins are wound in a helix 8 with a long pitch. 3. Un radiateur selon les revendications et 8, carac- térisé en ce que l'angle des hélices avec l'axe de l'organe tubu- laire est inférieur à 45 . 3. A radiator according to claims and 8, charac- terized in that the angle of the helices with the axis of the tubular member is less than 45. 4. Un radiateur selon les revendications 1 à 3, carac- térisé en ce que l'angle des hélices avec l'axe de l'organe tubu- laire est de quelques degrés. 4. A radiator according to claims 1 to 3, characterized in that the angle of the helices with the axis of the tubular member is a few degrees. 5.Un radiateur selon l'une des revendications 1 à 4, caractérisé en ce que les ailettes sont monobloo avec l'organe tubulaire. 5. A radiator according to one of claims 1 to 4, characterized in that the fins are integral with the tubular member. 6. Un radiateur selon les revendications 1 à 5, carac- térisé en ce qu'il comprend des moyens pour le raccorder à un cir- cuit d'air chaud. 6. A radiator according to claims 1 to 5, characterized in that it comprises means for connecting it to a hot air circuit. 7, Un radiateur selon les revendications 1 à 5, carac- térisé en ce qu'il comporte une résistance électrique placée dans l'organe tubulaire et des moyens de raccord à une source électrique d'alimentation. 7. A radiator according to claims 1 to 5, charac- terized in that it comprises an electrical resistance placed in the tubular member and means for connection to an electrical power source. 8. Un radiateur selon l'une des revendicstions 1 à 5, caractérisé en ce qu'il comprend un déflecteur monté au-dessus de l'organe tubulaire à ailettes. 8. A radiator according to one of claims 1 to 5, characterized in that it comprises a deflector mounted above the tubular finned member. 9, Un radiateur selon les revendications 7 et 8, carac- térisé en ce que l'organe tubulaire est surmonté d'une lampe élec- trique, le déflecteur constituant abat-jour. 9. A radiator according to claims 7 and 8, characterized in that the tubular member is surmounted by an electric lamp, the deflector constituting the shade. 10. Un procédé pour la fabrication d'un élément de ra- diateur selon les revendications ; 0 5, caractérisé par l'applica- tion de l'extrusion d'aluminium ou d'un alliage d'aluminium pour l'obtention d'un élément comportant un organe tubulaire de cirou- lation de fluide et des ailettes périphériques hélicoïdales. 10. A process for the manufacture of a radiator element according to the claims; 0 5, characterized by the application of the extrusion of aluminum or of an aluminum alloy to obtain an element comprising a tubular fluid circulating member and helical peripheral fins. @ @
BE621402D BE621402A (en)

Publications (1)

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Family

ID=194442

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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