EP3499164A1 - Radiator with heat-transfer fluid with even distribution of heat on façade - Google Patents
Radiator with heat-transfer fluid with even distribution of heat on façade Download PDFInfo
- Publication number
- EP3499164A1 EP3499164A1 EP18212943.7A EP18212943A EP3499164A1 EP 3499164 A1 EP3499164 A1 EP 3499164A1 EP 18212943 A EP18212943 A EP 18212943A EP 3499164 A1 EP3499164 A1 EP 3499164A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiator
- pipe
- blade
- distribution
- 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.)
- Granted
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 44
- 239000013529 heat transfer fluid Substances 0.000 title claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 239000002826 coolant Substances 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 10
- 238000005553 drilling Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- F28D1/0226—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 an intermediate heat-transfer medium, e.g. thermosiphon radiators
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- 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
- F28D1/0535—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 the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
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- 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
- F28D1/0535—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 the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
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- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
Definitions
- the present invention relates to the field of heat transfer fluid radiators, and relates more particularly to a heat transfer fluid radiator with uniform distribution of heat in front.
- the coolant radiators generally comprise a first conduit, a second conduit, parallel to the first conduit, and a plurality of hollow blades fluidly connected, through orifices, to the first and second conduits and generally perpendicular thereto.
- the blades are arranged in front of the pipes and constitute the front of the radiator.
- This type of radiator is currently used in a closed circuit configuration, in which heating means such as electrical resistance type are provided in the first pipe and the pipes are not connected to an external source of heat transfer fluid. It is therefore an electric heater.
- the heating means heat the fluid in the first conduit, which, because of the thermosiphon phenomenon, sets the fluid in motion to circulate in the blades and pipes, where the fluid will lose heat in the yielding to the environment.
- Such electric radiators have the disadvantage of providing a distribution of heat to the environment that is not uniform. Indeed, with such a configuration, the fluid is hot in the first pipe and the corresponding end region of the blades and cold in the other end region of the blades and the second pipe, and it will be easily understood that the heat distribution is important in a first part of the facade and low in the remaining part of the facade.
- such a target temperature may not be achievable due to the maximum value imposed on the surface temperature of the blades in order to avoid any risk of burning the user who would touch the blades.
- the maximum threshold of surface temperature to be exceeded in any point of the blades can be 85 ° C.
- the applicant company proposes to solve this problem by the use of additional tubes fluidly connected at least to the lower pipe and to at least one blade, directly or indirectly, so as to modify, compared to what the in the prior art, the path followed by the heat transfer fluid by flowing in the tubes and then in the blades, and not by flowing directly into the blades.
- the plaintiff company has found that, unexpectedly, it is possible to improve the uniformity of the surface temperature of the facade, in other words to reduce the thermal gradient, by improving the circulation of the heat transfer fluid. in the blades, and that this circulation was impeded by the fact that the flow rate at the passage between the first pipe and each blade is limited because of the small diameter of the orifices that imposes a connection of the blades to the first pipe.
- the additional tubes make it possible to circumvent this limitation of the flow rate between the pipe and the at least one blade and to introduce hot heat transfer fluid into the end region of the blades which is located opposite to that where the heating means are present.
- the additional tubes also provide an additional surface in contact with the environment, which allows to add a convective heat exchange which contributes to the greater efficiency of the radiator according to the present invention.
- the solution according to the present invention is not limited to electric radiators, in a closed circuit, but that it could quite well be applied to a radiator. in open circuit as part of a central heating system.
- the present invention therefore relates to a heat transfer fluid radiator comprising a first pipe, a second pipe and a facade assembly forming a front of the radiator, the facade assembly comprising a plurality of hollow blades which are in fluid communication with the first and second conducted, the radiator being characterized in that it further comprises several tubes, said distribution, which are located behind the facade assembly and which are in fluid communication on the one hand with the first pipe and on the other hand with at least one blade of the facade assembly at at least one location in the upper portion of the at least one blade, said at least one location being in the portion of the at least one blade which is in the vicinity of the second pipe, so as to allow the coolant, in operation, to enter the distribution tubes from the first pipe, to flow along the tubes of This distribution then enters the at least one blade and flows along the at least one blade before entering the first conduit again.
- each distribution tube is in fluid communication with the first conduit through a first passage and the blades are in fluid communication with the first conduit each via a second passage, the cross section of the first passage and the internal cross section of the at least one distribution tube being equal to or greater than the cross section of the second passages.
- the internal cross-section of the distribution tubes is greater than that of the second passage makes it possible to limit the number of distribution tubes which is necessary to obtain a sufficient uniformity of the distribution of heat on the facade.
- the radiator comprises, for each blade, at least one distribution tube located behind said blade.
- the radiator comprises, for each blade, two distribution tubes each located behind a respective one of the two longitudinal edge regions of said blade.
- an interval is present between each distribution tube and the blade behind which it is located. Providing such an interval makes it possible to further increase the heat exchange by convection between the distribution tubes and the environment.
- the distribution tubes could be in direct fluid communication with the at least one blade, namely that the distribution tubes would lead directly into at least one blade.
- the distribution tubes are in fluid communication with the at least one blade via the second conduit, and for this purpose the distribution tubes open into the second conduct.
- the pipes can be horizontal and the blades can be vertical. Of course, one could provide pipes that are vertical and blades that are horizontal.
- Each aforementioned fluid communication location between two of the first and second conduits, the blades and each distribution tube, is formed by an orifice in a first of these two elements. and by an orifice in the second of these two elements, which orifices are aligned with each other.
- the blades are assembled to the distribution tubes by welds or solders.
- the first and second conduits can be closed at their ends, so that the radiator is in a closed circuit, electric heating means being provided in the first conduit, the radiator thus being an electric radiator.
- the solution according to the present invention is not limited to an electric radiator, in a closed circuit, but it could quite well be applied to an open circuit radiator forming part of a heating system.
- the first conduit may be open at one end, which is configured to be connected to a hot coolant inlet pipe
- the second conduit may be open at one end, which is configured to be connected to a coolant outlet pipe, so that the radiator is in open circuit.
- radiator according to a particular embodiment of the present invention is shown schematically in the drawings, so as to illustrate the principle underlying the present invention.
- radiator 1 an electric radiator with heat transfer fluid 1, hereinafter designated radiator 1 for the sake of brevity, comprises, in a conventional manner, in the lower part a lower pipe 2 and in the upper part an upper pipe 3, connected fluidly by a plurality of vertical hollow blades 4 forming the front of the radiator 1.
- the radiator 1 Since the radiator 1 is in a closed circuit, heating means (not shown) are provided in the lower duct 2 so as to heat the fluid and thereby move it in the radiator 1. Consequently, the lower and upper ducts 2 and 3 correspond respectively to said first and second pipes mentioned above.
- the lower and upper ducts 2 each comprise a series of pairs of cylindrical first cylindrical orifices 21, 31 whose axes are horizontal and parallel to one another, the first orifices 21, 31 opening on the radiator 1 side. same number of first orifices 21, 31, namely twelve in the example shown in the drawings, and each first orifice 21 of the lower pipe 2 corresponds to a first orifice 31 of the upper pipe 3 which is aligned vertically with said first orifice 21.
- Each blade 4 is generally in the form of a flat tubular element of rectangular or oblong cross section as in the example shown in the drawings, and thus comprises a front face 41, directed towards the environment to be heated, and a face rear 42 opposite the front face 41 and applied against the lower and upper 2 pipes 3.
- a pair of first orifices 43 is formed in the rear face 42 in each of the two longitudinal end regions of each blade 4, in a position such that a pair of first orifices 43 is aligned with a pair of first orifices 21 of the lower pipe 2 while the other is aligned with the pair of corresponding first orifices 31 of the upper pipe 3.
- the radiator 1 is remarkable in that it comprises additional tubes 5, said distribution, in the example shown two for each blade 4.
- the distribution tubes 5 can be simple rectilinear tubes, as shown schematically in the drawings, presenting a first orifice 51 at each of their two longitudinal ends.
- the lower and upper pipes 2 each comprise a series of pairs of cylindrical second cylindrical orifices 22, 32 whose axes are vertical and parallel to each other, the second orifices 22 of the lower pipe 2 opening upwards while the second orifices 32 of the upper pipe 3 open downwards.
- the same number of pairs of second orifices 22, 32 are provided as pairs of first orifices 21, 31 and each second orifice 22, 32 is positioned so that its axis belongs to a vertical plane passing through the axis of a first orifice 21, 31 corresponding.
- Each distribution tube 5 is disposed vertically between the lower 2 and upper 3 pipes and is dimensioned so that the first hole 51 in the lower part is aligned with a first orifice 21 of the lower pipe 2 and the first orifice 51 at the top is aligned with the first corresponding orifice 31 of the upper pipe 3.
- each blade 4 extends two distribution tubes 5.
- the spacing between the various orifices is such that each distribution tube 5 extend behind a respective region of longitudinal edge, here vertical, of the corresponding blade 4.
- each distribution tube 5 is in fluid communication with the lower pipe 2 at the bottom and with the upper pipe 3 at the top.
- the cross section of the first orifices 51 and the second orifices 22, 32 are identical and equal to those of the first orifices 21, 31 and 43, but that the internal cross section of the distribution tubes 5 is bigger.
- the heat transfer fluid heated in the lower pipe 2 will rather enter the distribution tubes 5, through the second orifices 22 and the first orifices 51, tubes in which it will rise to the upper pipe 3 in passing through the first orifices 51 and the second orifices 32, then the still hot heat transfer fluid, although it is yielded by convection heat when it is mounted in the distribution tubes 5, will enter each of the blades 4 through each of the first orifices 31, 43 and will descend into the blades 4, yielding heat through the facade, to exit and enter the lower pipe 2 through the first orifices 43, 21, in which it will be heated again by the heating means and thus made to re-enter the distribution tubes 5 and to perform the cycle described above.
- All the orifices described above may be made by any appropriate means, for example by drilling, and the various elements (pipes 2, 3, blades 4 and tubes 5) can be assembled in a conventional manner, in particular by welding, for example described in the French patent application FR 2 925 374 in a manner that seals the fluid communication between the elements.
- the radiator described above may be part of a central heating system, in which case the heating means will not be provided, one end of the upper pipe 3 will be connected to a warm heat transfer fluid inlet pipe and one end of the lower pipe 2, on the other side of the radiator 1, will be connected to a cold coolant outlet pipe, and this in a manner well known per se.
- the upper 3 and lower 2 pipes respectively correspond to said first and second pipes mentioned above.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Central Heating Systems (AREA)
Abstract
L'invention concerne un radiateur (1) à fluide caloporteur comprenant une première conduite (2), une seconde conduite (3) et un ensemble façade comprenant des lames creuses (4) en communication fluidique avec les conduites (2, 3) . Le radiateur (1) comprend également des tubes de répartition (5) situés derrière l'ensemble façade et en communication fluidique avec la première conduite (2) et avec au moins une lame (4), en au moins un emplacement de celle-ci, ledit au moins un emplacement se trouvant dans la partie de l'au moins une lame (4) qui se situe au voisinage de la seconde conduite (3), de façon à permettre au fluide caloporteur, en fonctionnement, d'entrer dans les tubes (5) à partir de la première conduite (2), de s'écouler le long de ceux-ci, puis d'entrer dans l'au moins une lame (4) et s'écouler le long de celle-ci pour revenir dans la première conduite (2).The invention relates to a radiator (1) with heat transfer fluid comprising a first pipe (2), a second pipe (3) and a facade assembly comprising hollow blades (4) in fluid communication with the pipes (2, 3). The radiator (1) also comprises distribution pipes (5) located behind the façade assembly and in fluid communication with the first pipe (2) and with at least one blade (4), in at least one location thereof , said at least one location being in the portion of the at least one blade (4) which is in the vicinity of the second pipe (3), so as to allow the heat transfer fluid, in operation, to enter the tubes (5) from the first pipe (2), to flow along them, then to enter the at least one blade (4) and flow along it to return to the first pipe (2).
Description
La présente invention se rapporte au domaine des radiateurs à fluide caloporteur, et porte plus particulièrement sur un radiateur à fluide caloporteur avec distribution uniforme de chaleur en façade.The present invention relates to the field of heat transfer fluid radiators, and relates more particularly to a heat transfer fluid radiator with uniform distribution of heat in front.
Les radiateurs à fluide caloporteur comprennent d'une manière générale une première conduite, une seconde conduite, parallèle à la première conduite, et une pluralité de lames creuses reliées fluidiquement, par des orifices, aux première et seconde conduites et généralement perpendiculaires à celles-ci. En particulier, les lames sont disposées devant les conduites et constituent la façade du radiateur.The coolant radiators generally comprise a first conduit, a second conduit, parallel to the first conduit, and a plurality of hollow blades fluidly connected, through orifices, to the first and second conduits and generally perpendicular thereto. . In particular, the blades are arranged in front of the pipes and constitute the front of the radiator.
Ce type de radiateur est actuellement utilisé dans une configuration en circuit fermé, dans laquelle des moyens de chauffage tels que du type résistance électrique sont prévus dans la première conduite et les conduites ne sont pas reliées à une source extérieure de fluide caloporteur. Il s'agit donc d'un radiateur électrique. En fonctionnement, les moyens de chauffage chauffent le fluide dans la première conduite, ce qui, du fait du phénomène de thermosiphon, met en mouvement le fluide pour le faire circuler dans les lames et les conduites, où le fluide perdra de la chaleur en la cédant à l'environnement.This type of radiator is currently used in a closed circuit configuration, in which heating means such as electrical resistance type are provided in the first pipe and the pipes are not connected to an external source of heat transfer fluid. It is therefore an electric heater. In operation, the heating means heat the fluid in the first conduit, which, because of the thermosiphon phenomenon, sets the fluid in motion to circulate in the blades and pipes, where the fluid will lose heat in the yielding to the environment.
De tels radiateurs électriques présentent l'inconvénient de procurer une distribution de la chaleur vers l'environnement qui n'est pas uniforme. En effet, avec une telle configuration, le fluide est chaud dans la première conduite et la région d'extrémité correspondante des lames et froid dans l'autre région d'extrémité des lames et la seconde conduite, et l'on comprendra aisément que la distribution de chaleur est donc importante dans une première partie de la façade et faible dans la partie restante de la façade.Such electric radiators have the disadvantage of providing a distribution of heat to the environment that is not uniform. Indeed, with such a configuration, the fluid is hot in the first pipe and the corresponding end region of the blades and cold in the other end region of the blades and the second pipe, and it will be easily understood that the heat distribution is important in a first part of the facade and low in the remaining part of the facade.
Il en résulte donc un fort gradient thermique qui peut être inconfortable pour l'utilisateur et qui peut dans certains cas obliger le radiateur à consommer une puissance électrique plus importante afin d'atteindre une valeur cible, par exemple pour la température réellement ressentie par l'utilisateur.This therefore results in a high thermal gradient which may be uncomfortable for the user and which may in certain cases force the radiator to consume a larger electrical power in order to reach a target value, for example for the temperature actually felt by the user. user.
Dans les cas les plus désavantageux, une telle température cible peut ne pas pouvoir être atteinte en raison de la valeur maximale imposée pour la température de surface des lames afin d'éviter un quelconque risque de brûlure de l'utilisateur qui toucherait les lames. Par exemple, le seuil maximal de température de surface à ne dépasser, en tout point des lames, peut être de 85°C.In the most disadvantageous cases, such a target temperature may not be achievable due to the maximum value imposed on the surface temperature of the blades in order to avoid any risk of burning the user who would touch the blades. For example, the maximum threshold of surface temperature to be exceeded in any point of the blades can be 85 ° C.
De telles considérations ont pu conduire à augmenter l'aire de surface de la façade, donc celle des lames, et ainsi à augmenter les dimensions des radiateurs.Such considerations may have led to increase the surface area of the facade, thus that of the blades, and thus to increase the dimensions of the radiators.
Il existe donc un besoin pour un radiateur électrique à fluide caloporteur qui présente une meilleure uniformité de température de la façade.There is therefore a need for an electric radiator with heat transfer fluid which has a better uniformity of temperature of the facade.
La société demanderesse se propose de résoudre ce problème par l'emploi de tubes supplémentaires reliés fluidiquement au moins à la conduite basse ainsi qu'à au moins une lame, de manière directe ou indirecte, de façon à modifier, par rapport à ce que l'on trouve dans l'art antérieur, le chemin suivi par le fluide caloporteur en le faisant s'écouler dans les tubes puis dans les lames, et non plus en le faisant s'écouler directement dans les lames.The applicant company proposes to solve this problem by the use of additional tubes fluidly connected at least to the lower pipe and to at least one blade, directly or indirectly, so as to modify, compared to what the in the prior art, the path followed by the heat transfer fluid by flowing in the tubes and then in the blades, and not by flowing directly into the blades.
En effet, la société demanderesse s'est aperçue que, de manière inattendue, l'on peut améliorer l'uniformité de la température de surface de la façade, en d'autres termes réduire le gradient thermique, en améliorant la circulation du fluide caloporteur dans les lames, et que cette circulation était entravée par le fait que le débit au niveau du passage entre la première conduite et chaque lame est limité en raison du diamètre faible des orifices qu'impose une liaison des lames à la première conduite.Indeed, the plaintiff company has found that, unexpectedly, it is possible to improve the uniformity of the surface temperature of the facade, in other words to reduce the thermal gradient, by improving the circulation of the heat transfer fluid. in the blades, and that this circulation was impeded by the fact that the flow rate at the passage between the first pipe and each blade is limited because of the small diameter of the orifices that imposes a connection of the blades to the first pipe.
Les tubes supplémentaires permettent de contourner cette limitation du débit entre la conduite et l'au moins une lame et de faire entrer du fluide caloporteur chaud dans la région d'extrémité des lames qui se situe côté opposé à celui où sont présent les moyens de chauffage. Les tubes supplémentaires offrent également une surface supplémentaire en contact avec l'environnement, ce qui permet d'ajouter un échange de chaleur par convexion qui participe à la plus grande efficacité du radiateur selon la présente invention.The additional tubes make it possible to circumvent this limitation of the flow rate between the pipe and the at least one blade and to introduce hot heat transfer fluid into the end region of the blades which is located opposite to that where the heating means are present. . The additional tubes also provide an additional surface in contact with the environment, which allows to add a convective heat exchange which contributes to the greater efficiency of the radiator according to the present invention.
On a pu également constater que l'on assure ainsi une circulation du fluide qui est bien meilleure que dans l'art antérieur, dans une mesure telle que l'on obtient une uniformité de température en façade. Ceci permet, par exemple, de disposer d'un appareil plus compact avec les mêmes performances en température et en puissance électrique, ou un meilleur effet de chauffage à une puissance électrique donnée.It has also been found that this ensures a circulation of the fluid which is much better than in the prior art, to such an extent that we obtain a uniformity of temperature on the facade. This allows, for example, to have a more compact device with the same performance in temperature and electrical power, or a better heating effect to a given electric power.
La société demanderesse s'est également aperçue que la solution selon la présente invention n'est pas limitée aux radiateurs électriques, en circuit fermé, mais qu'elle pourrait tout à fait être appliquée à un radiateur en circuit ouvert faisant partie d'un système de chauffage central.The applicant company has also realized that the solution according to the present invention is not limited to electric radiators, in a closed circuit, but that it could quite well be applied to a radiator. in open circuit as part of a central heating system.
La présente invention a donc pour objet un radiateur à fluide caloporteur comprenant une première conduite, une seconde conduite et un ensemble façade formant une façade du radiateur, l'ensemble façade comprenant une pluralité de lames creuses qui sont en communication fluidique avec les première et seconde conduites, le radiateur étant caractérisé par le fait qu'il comprend en outre plusieurs tubes, dit de répartition, qui sont situés derrière l'ensemble façade et qui sont en communication fluidique d'une part avec la première conduite et, d'autre part, avec au moins une lame de l'ensemble façade, en au moins un emplacement en partie supérieure de l'au moins une lame, ledit au moins un emplacement se trouvant dans la partie de l'au moins une lame qui se situe au voisinage de la seconde conduite, de façon à permettre au fluide caloporteur, en fonctionnement, d'entrer dans les tubes de répartition à partir de la première conduite, de s'écouler le long des tubes de répartition, puis d'entrer dans l'au moins une lame et s'écouler le long de l'au moins une lame avant d'entrer de nouveau dans la première conduite.The present invention therefore relates to a heat transfer fluid radiator comprising a first pipe, a second pipe and a facade assembly forming a front of the radiator, the facade assembly comprising a plurality of hollow blades which are in fluid communication with the first and second conducted, the radiator being characterized in that it further comprises several tubes, said distribution, which are located behind the facade assembly and which are in fluid communication on the one hand with the first pipe and on the other hand with at least one blade of the facade assembly at at least one location in the upper portion of the at least one blade, said at least one location being in the portion of the at least one blade which is in the vicinity of the second pipe, so as to allow the coolant, in operation, to enter the distribution tubes from the first pipe, to flow along the tubes of This distribution then enters the at least one blade and flows along the at least one blade before entering the first conduit again.
De préférence, chaque tube de répartition est en communication fluidique avec la première conduite par l'intermédiaire d'un premier passage et les lames sont en communication fluidique avec la première conduite chacune par l'intermédiaire d'un second passage, la section transversale du premier passage et la section transversale interne de l'au moins un tube de répartition étant égales ou supérieures à la section transversale des seconds passages. Prévoir qu'au moins la section transversale interne des tubes de répartition soit supérieure à celle du second passage permet de limiter le nombre de tubes de répartition qui est nécessaire pour obtenir une uniformité suffisante de la distribution de chaleur en façade.Preferably, each distribution tube is in fluid communication with the first conduit through a first passage and the blades are in fluid communication with the first conduit each via a second passage, the cross section of the first passage and the internal cross section of the at least one distribution tube being equal to or greater than the cross section of the second passages. Provide that at least the internal cross-section of the distribution tubes is greater than that of the second passage makes it possible to limit the number of distribution tubes which is necessary to obtain a sufficient uniformity of the distribution of heat on the facade.
De préférence, le radiateur comprend, pour chaque lame, au moins un tube de répartition situé derrière ladite lame.Preferably, the radiator comprises, for each blade, at least one distribution tube located behind said blade.
De façon encore davantage préférée, le radiateur comprend, pour chaque lame, deux tubes de répartition situés chacun derrière l'une respective des deux régions de bord longitudinal de ladite lame.Even more preferably, the radiator comprises, for each blade, two distribution tubes each located behind a respective one of the two longitudinal edge regions of said blade.
De préférence, un intervalle est présent entre chaque tube de répartition et la lame derrière laquelle il se situe. Prévoir un tel intervalle permet d'augmenter encore davantage l'échange de chaleur par convexion entre les tubes de répartition et l'environnement.Preferably, an interval is present between each distribution tube and the blade behind which it is located. Providing such an interval makes it possible to further increase the heat exchange by convection between the distribution tubes and the environment.
Les tubes de répartition pourraient être communication fluidique directe avec l'au moins une lame, à savoir que les tubes de répartition déboucheraient directement dans au moins une lame. Toutefois, selon une configuration particulière préférée du radiateur selon la présente invention, les tubes de répartition sont en communication fluidique avec l'au moins une lame par l'intermédiaire de la seconde conduite, et à cet effet les tubes de répartition débouchent dans la seconde conduite.The distribution tubes could be in direct fluid communication with the at least one blade, namely that the distribution tubes would lead directly into at least one blade. However, according to a particular preferred configuration of the radiator according to the present invention, the distribution tubes are in fluid communication with the at least one blade via the second conduit, and for this purpose the distribution tubes open into the second conduct.
Les conduites peuvent être horizontales et les lames peuvent être verticales. Bien entendu, on pourrait prévoir des conduites qui soient verticales et des lames qui soient horizontales.The pipes can be horizontal and the blades can be vertical. Of course, one could provide pipes that are vertical and blades that are horizontal.
Chaque emplacement de communication fluidique précité entre deux éléments parmi les première et seconde conduites, les lames et chaque tube de répartition, est formé par un orifice dans un premier de ces deux éléments et par un orifice dans le second de ces deux éléments, lesquels orifices étant alignés l'un avec l'autre.Each aforementioned fluid communication location between two of the first and second conduits, the blades and each distribution tube, is formed by an orifice in a first of these two elements. and by an orifice in the second of these two elements, which orifices are aligned with each other.
De préférence, les lames sont assemblées aux tubes de répartition par des soudures ou des brasures.Preferably, the blades are assembled to the distribution tubes by welds or solders.
Les première et seconde conduites peuvent être fermées à leurs extrémités, de sorte que le radiateur est en circuit fermé, des moyens de chauffage électriques étant prévus dans la première conduite, le radiateur étant ainsi un radiateur électrique.The first and second conduits can be closed at their ends, so that the radiator is in a closed circuit, electric heating means being provided in the first conduit, the radiator thus being an electric radiator.
Toutefois, comme indiqué ci-dessus, la solution selon la présente invention n'est pas limitée à un radiateur électrique, en circuit fermé, mais elle pourrait tout à fait être appliquée à un radiateur en circuit ouvert faisant partie d'un système de chauffage central. Ainsi, en variante, la première conduite peut être ouverte à une extrémité, laquelle est configurée pour être reliée à un tuyau d'arrivée de fluide caloporteur chaud, et la seconde conduite peut être ouverte à une extrémité, laquelle est configurée pour être reliée à un tuyau de sortie de fluide caloporteur, de sorte que le radiateur est en circuit ouvert.However, as indicated above, the solution according to the present invention is not limited to an electric radiator, in a closed circuit, but it could quite well be applied to an open circuit radiator forming part of a heating system. central. Thus, alternatively, the first conduit may be open at one end, which is configured to be connected to a hot coolant inlet pipe, and the second conduit may be open at one end, which is configured to be connected to a coolant outlet pipe, so that the radiator is in open circuit.
Pour mieux illustrer l'objet de la présente invention, on va en décrire ci-après, à titre illustratif et non limitatif, un mode de réalisation particulier, avec référence aux dessins annexés.To better illustrate the object of the present invention will be described below, by way of illustration and not limited to, a particular embodiment, with reference to the accompanying drawings.
Sur ces dessins :
- la
Figure 1 est une vue schématique en perspective de l'avant d'un radiateur selon un mode de réalisation de la présente invention ; - les
Figures 2 et 3 sont des vues schématiques en plan respectivement de l'arrière et de l'avant du radiateur de laFigure 1 ; - la
Figure 4 est une vue schématique en coupe horizontale à travers la conduite de sortie de fluide caloporteur, suivant le plan de coupe IV-IV ; - la
Figure 5 est une vue schématique en coupe verticale suivant le plan de coupe V-V, passant par l'axe d'un tube de répartition ; et - la
Figure 6 est une vue schématique de détail de la partie supérieure encerclée de laFigure 5 .
- the
Figure 1 is a schematic perspective view of the front of a radiator according to an embodiment of the present invention; - the
Figures 2 and3 are schematic plan views respectively of the rear and the front of the radiator of theFigure 1 ; - the
Figure 4 is a schematic view in horizontal section through the coolant outlet pipe, along the section plane IV-IV; - the
Figure 5 is a schematic view in vertical section along the section plane VV, passing through the axis of a distribution tube; and - the
Figure 6 is a schematic detail view of the encircled upper part of theFigure 5 .
On souligne ici que le radiateur selon un mode de réalisation particulier de la présente invention est représenté de manière schématique sur les dessins, de façon à illustrer le principe à la base de la présente invention.It is emphasized here that the radiator according to a particular embodiment of the present invention is shown schematically in the drawings, so as to illustrate the principle underlying the present invention.
Si l'on se réfère tout d'abord aux
Le radiateur 1 étant en circuit fermé, des moyens de chauffage (non représentés) sont prévus dans la conduite inférieure 2 de façon à chauffer le fluide et le mettre ainsi en mouvement dans le radiateur 1. Par conséquent, les conduites inférieure 2 et supérieure 3 correspondent respectivement auxdites première et seconde conduites mentionnées ci-dessus.Since the
Plus particulièrement, comme on peut mieux le voir sur les
Chaque lame 4 se présente globalement sous la forme d'un élément tubulaire plat de section transversale rectangulaire ou oblongue comme dans l'exemple représenté sur les dessins, et comporte ainsi une face avant 41, dirigée vers l'environnement à chauffer, et une face arrière 42 opposée à la face avant 41 et appliquée contre les conduites inférieure 2 et supérieure 3. Une paire de premier orifices 43 est réalisée, dans la face arrière 42, dans chacune des deux régions d'extrémité longitudinale de chaque lame 4, dans une position telle qu'une paire de premiers orifices 43 est alignée avec une paire de premiers orifices 21 de la conduite inférieure 2 tandis que l'autre est alignée avec la paire de premiers orifices 31 correspondant de la conduite supérieure 3. Il y a ainsi six lames 4 dans l'exemple représenté sur les dessins.Each
Le radiateur 1 est remarquable en ce qu'il comprend des tubes supplémentaires 5, dits de répartition, dans l'exemple représenté deux pour chaque lame 4.The
Les tubes de répartition 5 peuvent être de simples tubes rectilignes, comme représentés schématiquement sur les dessins, présentant un premier orifice 51 à chacune de leurs deux extrémités longitudinales.The
Par ailleurs, les conduites inférieure 2 et supérieure 3 comportent chacune une série de paires de seconds orifices 22, 32 radiaux cylindriques dont les axes sont verticaux et parallèles entre eux, les seconds orifices 22 de la conduite inférieure 2 débouchant vers le haut tandis que les seconds orifices 32 de la conduite supérieure 3 débouchent vers le bas. Il est prévu un même nombre de paires de seconds orifices 22, 32 que de paires de premiers orifices 21, 31 et chaque second orifice 22, 32 est positionné pour que son axe appartienne à un plan vertical passant par l'axe d'un premier orifice 21, 31 correspondant. En d'autres termes, pour chacune des conduites inférieure 2 et supérieure 3 on a prévu des paires, ici douze, d'un premier orifice 21, 31 et d'un second orifice 22, 32 perpendiculaires l'un à l'autre.Furthermore, the lower and
Chaque tube de répartition 5 est disposé verticalement entre les conduites inférieure 2 et supérieure 3 et est dimensionné pour que le premier orifice 51 en partie basse soit aligné avec un premier orifice 21 de la conduite inférieure 2 et que le premier orifice 51 en partie haute soit aligné avec le premier orifice correspondant 31 de la conduite supérieure 3. En d'autres termes, derrière chaque lame 4 s'étend deux tubes de répartition 5. En particulier, l'espacement entre les différents orifices est tel que chaque tube de répartition 5 s'étendent derrière une région respective de bord longitudinal, ici vertical, de la lame 4 correspondante.Each
Ainsi, en résumé, chaque tube de répartition 5 est en communication de fluide avec la conduite inférieure 2 en partie basse et avec la conduite supérieure 3 en partie haute.Thus, in summary, each
On souligne ici que dans l'exemple illustré la section transversale des premiers orifices 51 et des seconds orifices 22, 32 sont identiques et égales à celles des premiers orifices 21, 31 et 43, mais que la section transversale interne des tubes de répartition 5 est plus grande.It is emphasized here that in the illustrated example the cross section of the
Par conséquent, en fonctionnement, le fluide caloporteur chauffé dans la conduite inférieure 2 entrera plutôt dans les tubes de répartition 5, en passant par les seconds orifices 22 et les premiers orifices 51, tubes dans lesquels il montera jusqu'à la conduite supérieure 3 en passant par les premiers orifices 51 et les seconds orifices 32, puis le fluide caloporteur encore chaud, bien qu'il est cédé de la chaleur par convexion lors de sa montée dans les tubes de répartition 5, entrera dans chacune des lames 4 en passant par chacun des premiers orifices 31, 43 et descendra dans les lames 4, en cédant de la chaleur via la façade, pour en sortir et entrer dans la conduite inférieure 2 en passant par les premières orifices 43, 21, dans laquelle il sera de nouveau chauffé par les moyens de chauffage et ainsi amené à entrer de nouveau dans les tubes de répartition 5 et à effectuer le cycle décrit ci-dessus.Therefore, in operation, the heat transfer fluid heated in the
Tous les orifices décrits ci-dessus pourront être réalisés par tout moyen approprié, comme par exemple par perçage, et les différents éléments (conduites 2, 3, lames 4 et tubes 5) pourront être assemblés de manière classique, notamment par soudage comme par exemple décrit dans la demande de brevet français
Il est bien entendu que le mode de réalisation ci-dessus de la présente invention a été donné à titre indicatif et non limitatif et que des modifications pourront y être apportées sans que l'on s'écarte pour autant du cadre de la présente invention.It is understood that the above embodiment of the present invention has been given as a indicative and not limiting and that modifications may be made without departing from the scope of the present invention.
Ainsi, le radiateur décrit ci-dessus pourra faire partie d'un système de chauffage central, auquel cas les moyens de chauffage ne seront pas prévus, une extrémité de la conduite supérieure 3 sera reliée à un tuyau d'arrivée de fluide caloporteur chaud et une extrémité de la conduite inférieure 2, de l'autre côté du radiateur 1, sera reliée à un tuyau de sortie de fluide caloporteur froid, et ce d'une manière bien connue en soi. Dans une telle configuration, les conduites supérieure 3 et inférieure 2 correspondront respectivement auxdites première et seconde conduites mentionnées ci-dessus.Thus, the radiator described above may be part of a central heating system, in which case the heating means will not be provided, one end of the
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20201526A RS61205B1 (en) | 2017-12-18 | 2018-12-17 | Radiator with heat-transfer fluid with even distribution of heat on façade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1762363A FR3075350B1 (en) | 2017-12-18 | 2017-12-18 | HEAT PUMP RADIATOR WITH UNIFORM FACIAL HEAT DISTRIBUTION |
Publications (2)
Publication Number | Publication Date |
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EP3499164A1 true EP3499164A1 (en) | 2019-06-19 |
EP3499164B1 EP3499164B1 (en) | 2020-09-16 |
Family
ID=61028046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18212943.7A Active EP3499164B1 (en) | 2017-12-18 | 2018-12-17 | Radiator with heat-transfer fluid with even distribution of heat on façade |
Country Status (6)
Country | Link |
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EP (1) | EP3499164B1 (en) |
ES (1) | ES2833529T3 (en) |
FR (1) | FR3075350B1 (en) |
RS (1) | RS61205B1 (en) |
RU (1) | RU2722247C1 (en) |
UA (1) | UA120815C2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9101673U1 (en) * | 1991-02-14 | 1991-06-06 | Peperle, Wolfram, Dr., 2991 Börger | Integrated heat exchanger for solar collectors |
FR2932551A1 (en) * | 2008-06-11 | 2009-12-18 | Atlantic Industrie Sas | Heat transfer fluid type electric radiator for use in room, has heating blades set in parallel to each other by tubular element to which blades are fixed, where each blade comprises plain body made of thermal conductive material |
EP2246654A1 (en) * | 2009-04-29 | 2010-11-03 | ABB Research Ltd. | Multi-row thermosyphon heat exchanger |
GB2498373A (en) * | 2012-01-12 | 2013-07-17 | ECONOTHERM UK Ltd | Heat exchanger |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1292589B1 (en) * | 1997-05-30 | 1999-02-08 | S I R A S P A | Modular bimetallic radiator for domestic heating systems |
-
2017
- 2017-12-18 FR FR1762363A patent/FR3075350B1/en not_active Expired - Fee Related
-
2018
- 2018-12-17 UA UAA201812509A patent/UA120815C2/en unknown
- 2018-12-17 ES ES18212943T patent/ES2833529T3/en active Active
- 2018-12-17 EP EP18212943.7A patent/EP3499164B1/en active Active
- 2018-12-17 RS RS20201526A patent/RS61205B1/en unknown
- 2018-12-18 RU RU2018144792A patent/RU2722247C1/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9101673U1 (en) * | 1991-02-14 | 1991-06-06 | Peperle, Wolfram, Dr., 2991 Börger | Integrated heat exchanger for solar collectors |
FR2932551A1 (en) * | 2008-06-11 | 2009-12-18 | Atlantic Industrie Sas | Heat transfer fluid type electric radiator for use in room, has heating blades set in parallel to each other by tubular element to which blades are fixed, where each blade comprises plain body made of thermal conductive material |
EP2246654A1 (en) * | 2009-04-29 | 2010-11-03 | ABB Research Ltd. | Multi-row thermosyphon heat exchanger |
GB2498373A (en) * | 2012-01-12 | 2013-07-17 | ECONOTHERM UK Ltd | Heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
ES2833529T3 (en) | 2021-06-15 |
EP3499164B1 (en) | 2020-09-16 |
FR3075350B1 (en) | 2019-11-08 |
UA120815C2 (en) | 2020-02-10 |
RS61205B1 (en) | 2021-01-29 |
RU2722247C1 (en) | 2020-05-28 |
FR3075350A1 (en) | 2019-06-21 |
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