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
Links
- 238000001125 extrusion Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920002456 HOTAIR Polymers 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000002093 peripheral Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000295 complement Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/04—Heat-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
- F28D1/053—Heat-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
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular 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
- F28F1/14—Tubular 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
- F28F1/16—Tubular 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/16—Heat 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)
Publications (1)
Publication Number | Publication Date |
---|---|
BE621402A true BE621402A (en) |
Family
ID=194442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE621402D BE621402A (en) |
Country Status (1)
Country | Link |
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BE (1) | BE621402A (en) |
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0
- BE BE621402D patent/BE621402A/fr unknown
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