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WO2002025175A1 - Terrace heating device - Google Patents

Terrace heating device Download PDF

Info

Publication number
WO2002025175A1
WO2002025175A1 PCT/FR2001/002887 FR0102887W WO0225175A1 WO 2002025175 A1 WO2002025175 A1 WO 2002025175A1 FR 0102887 W FR0102887 W FR 0102887W WO 0225175 A1 WO0225175 A1 WO 0225175A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
base
terrace
heating device
complementary
Prior art date
Application number
PCT/FR2001/002887
Other languages
French (fr)
Inventor
Jean Collet
Original Assignee
Jean Collet
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
Application filed by Jean Collet filed Critical Jean Collet
Priority to EP01969912A priority Critical patent/EP1322894A1/en
Priority to AU2001290041A priority patent/AU2001290041A1/en
Publication of WO2002025175A1 publication Critical patent/WO2002025175A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/30—Arrangements for mounting stoves or ranges in particular locations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C1/00—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified
    • F24C1/08—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified solely adapted for radiation heating
    • F24C1/10—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified solely adapted for radiation heating with reflectors
    • F24C1/12—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified solely adapted for radiation heating with reflectors of circular shape

Definitions

  • the present invention relates to a patio heating device intended to be placed on professional restaurant or bar terraces or on private type terraces, so as to allow the use of said terraces whatever the outside temperature such as, for example , in winter.
  • It relates more particularly to an improvement intended to improve the performance of these devices in order to obtain a better distribution of heat and an optimal yield of the device.
  • Heating devices which have heating elements using propane gas as fuel, which can optionally be fitted to terraces in low seasons.
  • the heating elements are generally arranged in height, so as to radiate downwards.
  • such devices have many drawbacks related to their use and in particular that of the heat loss forcing the restaurant owner, the cafeteria maker or the user to have a large number of these devices on his terrace in order to obtain a sufficient temperature.
  • these devices heat the air by radiation and the hot air tends to rise, such a system does not make it possible to obtain a satisfactory temperature, in particular at the level of the lower limbs (feet, legs), which, arranged under a table, do not benefit from radiation at all.
  • the heat loss caused by the use of these various heating devices present on the market causes a high consumption of the fuel which feeds them. as, for example, propane, as soon as one wishes to maintain a high temperature.
  • the present invention proposes to solve the various aforementioned drawbacks by simple, safe and effective means.
  • the terrace heating device of the invention is of the type comprising a main heating element carried by a supporting mast and is characterized in that it comprises at least one additional heating element disposed at the level of the 'carrier mast base.
  • the complementary heating element or elements are carried by a base which forms the base of the supporting mast.
  • the patio heater it is characterized in that a part of the complementary heating elements is arranged on the base to be directed towards the outside thereof and thus constitute heating means. extra external.
  • a part of the complementary heating elements is arranged on the base to directly or indirectly heat the interior of the base and thus to constitute internal heating means intended to maintain an adequate temperature at room temperature. interior of the base where the means for supplying the main heating element are arranged.
  • the complementary heating elements are arranged at a height from the ground of between 0 and 1 m.
  • the patio heater comprises independent adjustment means of the main heating element and complementary heating elements.
  • the patio heating device includes automatic regulation means which allow the regulation of the internal temperature of the base thanks to a system acting on the heating intensity of the means. internal heating.
  • the supply means are arranged in an envelope located inside the base.
  • the base is cylindrical in shape and has additional radiant-type heating elements uniformly distributed around its periphery.
  • the heating elements are of longitudinal type to extend from bottom to top over all or part of the height of the base.
  • FIGS 1 to 7 illustrate several different embodiments of the heating device of the invention.
  • Figure 1 shows in perspective a heating device provided with a complementary heating element of the invention.
  • Figure 2 shows in cross section the heater of Figure 1.
  • FIGS 3a and 3b illustrate in perspective alternative embodiments of the heating device where the base is of parallelepiped shape.
  • Figure 4 shows in perspective a second alternative embodiment of the heating apparatus where the base is of cylindrical shape.
  • FIGS 5a and 5b illustrate in perspective two alternative embodiments of the base of the heater.
  • Figure 6 illustrates in cross section in a horizontal plane a different embodiment of the additional heating means.
  • Figure 7 shows in a view similar to Figure 2 an alternative embodiment of the patio heater.
  • Figure 8 illustrates an alternative embodiment.
  • the terrace heating device bearing the general reference (1) comprises heating means which are constituted by a main heating element (8).
  • Said heating element is advantageously of the radiant heating type supplied with gas by supply means (MA), said gas possibly being, for example, propane or butane.
  • the heating element (8) can also be of any type such as, for example, operating with liquefied petroleum gas (LPG), the supply means (MA) advantageously corresponding to the type of the main heating element used.
  • Said main heating element (8) is carried by holding means, such as a support mast (3), so as to advantageously allow said heating element to be situated at a height (L) from the ground which can be understood between 1 and 3 meters.
  • the radiation of the element and / or the heat supplied by the combustion can, moreover, be advantageously oriented or directed downwards so as to directly heat the space (5) situated directly above said heating element (8 ).
  • the heating element (8) is advantageously located at the top (3a) of the supporting mast (3) and that it can be surmounted by a reflection dome (19) intended to reflect the radiation produced by the element. heater (8) to the space (5) to be heated in order to avoid heat loss.
  • the patio heating device (1) comprises at least one additional heating element (10) arranged at the level of the base (3b) of the supporting mast (3).
  • this additional heating element (10) is arranged at a height (Hl) from the ground of between 0 and 1 m in order to be able to heat the lower part (5a) of the space to be heated (5).
  • This additional heating element is advantageously of the same type as the main heating element (8) and is formed by a radiant heating element or burner; it can therefore be supplied by the same supply means (MA).
  • These supply means (MA) are formed by a bottle (7) of a gaseous fuel such as propane, butane or liquefied petroleum gas; said bottle (7) being disposed at the level of the base (3b) of the carrier mast inside an enclosure or base (4) of the heating device (1) on which the carrier mast (3) is fixed.
  • a gaseous fuel such as propane, butane or liquefied petroleum gas
  • the heating device (1) of the invention comprises one or more complementary heating elements (10) arranged on the base (4) of the device (1).
  • These elements are of the radiant type and are directed towards the outside (EXT) of the base (4) to heat the space (5a) located around the base thanks to their radiation, as shown in FIGS. 1 and 2.
  • the heating elements (10) are directed or oriented as far as possible downwards to heat the air located as close as possible to the ground as illustrated in FIG. 2.
  • the complementary heating elements (10) are exclusively oriented towards the outside to heat the surrounding air. They are distributed uniformly over the periphery of the cylindrical enclosure (4) which comprises the supply means (MA, 7) so as to be able to radiate around the entire perimeter of the enclosure (4).
  • a part of the heating elements (10) can be intended to directly or indirectly heat the interior of the base (4) to maintain an adequate temperature inside it. ci so that the bottles (7) which constitute the supply means (MA) can supply the main heating element (8) with a optimal performance by providing a gaseous fuel at a suitable temperature.
  • MCA external auxiliary heating means
  • MCI additional internal heating means
  • this operating range is essentially defined as a function of the technical characteristics of the supply means and of the main heating element or burner (8) in order to obtain a maximum efficiency of said element and thus to optimize its consumption and its efficiency.
  • the base (4) is of rectangular shape and it carries on each of its side faces at least one additional heating element (10).
  • These elements (10) which radiate outwards (EXT) from the base (4) also allow, through their internal wall, to indirectly heat the interior of the base by thermal conduction.
  • EXT radiate outwards
  • the mere presence of heating elements (10), even directed towards the outside (EXT) of the base allows a significant increase in the internal temperature of said base (4) and therefore obtaining a better yield for the main heating element.
  • FIG. 10 an alternative embodiment illustrated in FIG.
  • the base (4) may have an additional element (10d) directed inwards to heat directly by conduction or by radiation, the air located around the supply means ( MA, 7) and thus obtain a superior efficiency of the main heating element (8) which then uses a "preheated" gaseous fuel.
  • the heating device (1) comprises a base of cylindrical shape which carries along several of its generators complementary heating elements (10) longitudinal .
  • These elements (10) advantageously extend over the entire height (H) of the base (4) and are distributed uniformly over the periphery of the base; they are supplied with gaseous fuel via a distribution ring (6) located either at the lower end of the complementary heating elements (10), or at their upper end.
  • These complementary elements (10) are advantageously cylindrical in shape and radiate over their entire periphery in order to heat the interior (INT) and the exterior (EXT) of the base (4) simultaneously; they thus constitute the internal heating means (MCI) and the external heating means (MCA).
  • the base (4) which carries the complementary heating elements (10) and to which the carrying mast (3) is fixed, comprises an additional internal enclosure or envelope ( 11) inside which is the bottles (7) of gaseous fuel.
  • This envelope made of a material constituting a good thermal conductor makes it possible to physically isolate the bottles (7) from the burners which form the complementary elements (10) so as not to expose them directly to the radiation of these while allowing them to be kept within an adequate temperature range.
  • This envelope advantageously allows the use of complementary heating elements (10) whose radiation is directed partly towards the interior of the base (4); it thus contributes to the security of the device.
  • the base can contain at its lower end one or more lateral openings intended to evacuate the hot air contained in the base, substantially at ground level to contribute to the heating of the space (5a) surrounding the base (4).
  • the complementary heating elements (10) are supplied by the same supply means (MA, 7) as the main heating element (8); however, they can be managed independently using their own adjustment or control means (12).
  • These control means (12) can advantageously allow the adjustment of the heating intensity of the complementary elements (10) by controlling their supply by the fuel bottles (7).
  • these control means comprise an adjustment button (12) which makes it possible to regulate the feed rate of a valve (13) which connects the gas fuel bottles (7) to the elements (10).
  • the main heating element (8) is adjusted by own control means (50) located in the upper part of the supporting mast and which make it possible to manage in a manner known per se ignition of the burner and the gas flow feeding it through a valve and pilot system.
  • the element or complementary elements (10) are managed independently by a clean valve system (75).
  • the bottle (7) supplying the heating elements (8, 10) is provided with a pressure reducer (80) which makes it possible to separate the supply networks which convey the fuel to the heating elements.
  • the complementary heating element (10) carried by the base (4) can be arranged outside the base to slightly move away from it as shown in FIG. 7.
  • the patio heater (1) comprises means for independent adjustment of the heating elements (8, 10), so as to be able to precisely regulate the intensity of heating of the different elements and of power thus obtaining a coherent distribution of heat over the entire space to be heated (5) and no longer over a small part of it, as proposed by current devices.
  • automatic regulation means intended to maintain the internal temperature (T) of the base (4) and therefore of the bottles (7) within the operating range defined according to the characteristics of the main burner (8).
  • These regulation means can be constituted by a thermostat system which makes it possible to act on the internal heating means (MCI) to regulate their intensity.
  • FIG. 8 illustrates an alternative embodiment according to which, the main heating (8) is offset with respect to the additional heating (10) so as not to be disposed directly above, that is to say vertically of said heating complementary.
  • the carrying mast (3) does not extend vertically but is for example curved or such that this is illustrated, namely with a mast produced in several sections.
  • the additional heating element (10) is not provided with space (Z) limited by the gas bottle (7) and / or the base (4), but above this area, close to the latter.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

The invention concerns a terrace heating device (1) comprising a main heating element (8) borne by a support mast (3), characterised in that it comprises at least a complementary heating element (10) arranged at the base of the support mast.

Description

DISPOSITIF DE CHAUFFAGE POUR TERRASSE TERRACE HEATING DEVICE
La présente invention concerne un dispositif de chauffage pour terrasse destiné à être disposé sur des terrasses professionnelles de restaurants ou de bars ou sur des terrasses de type privé, de manière à permettre l'utilisation desdites terrasses quelle que soit la température extérieure comme, par exemple, en hiver.The present invention relates to a patio heating device intended to be placed on professional restaurant or bar terraces or on private type terraces, so as to allow the use of said terraces whatever the outside temperature such as, for example , in winter.
Elle concerne plus particulièrement un perfectionnement destiné à améliorer les performances de ces dispositifs afin d'obtenir une meilleure répartition de la chaleur et un rendement optimal du dispositif.It relates more particularly to an improvement intended to improve the performance of these devices in order to obtain a better distribution of heat and an optimal yield of the device.
On connaît des dispositifs de chauffage possédant des éléments chauffants utilisant le gaz propane comme combustible, qui peuvent éventuellement équiper les terrasses en basses saisons. Les éléments chauffants sont généralement disposés en hauteur, de manière à rayonner vers le bas. De tels appareils présentent toutefois de nombreux inconvénients liés à leur utilisation et notamment celui de la déperdition de chaleur obligeant le restaurateur, le cafetier ou l'utilisateur à disposer un grand nombre de ces appareils sur sa terrasse afin d'obtenir une température suffisante.Heating devices are known which have heating elements using propane gas as fuel, which can optionally be fitted to terraces in low seasons. The heating elements are generally arranged in height, so as to radiate downwards. However, such devices have many drawbacks related to their use and in particular that of the heat loss forcing the restaurant owner, the cafeteria maker or the user to have a large number of these devices on his terrace in order to obtain a sufficient temperature.
De plus, ces appareils chauffent l'air par rayonnement et l'air chaud ayant tendance à monter, un tel système ne permet pas d'obtenir une température satisfaisante, notamment au niveau des membres inférieurs (pieds, jambes), qui, disposés sous une table, ne profitent aucunement du rayonnement. La déperdition de chaleur occasionnée lors de l'utilisation de ces différents appareils chauffants présents sur le marché provoque une consornmation élevée du combustible qui les alimente comme, par exemple, le propane, dès que l'on désire maintenir une température élevée.In addition, these devices heat the air by radiation and the hot air tends to rise, such a system does not make it possible to obtain a satisfactory temperature, in particular at the level of the lower limbs (feet, legs), which, arranged under a table, do not benefit from radiation at all. The heat loss caused by the use of these various heating devices present on the market causes a high consumption of the fuel which feeds them. as, for example, propane, as soon as one wishes to maintain a high temperature.
De plus, lorsque ces appareils fonctionnent, le combustible gazeux, stocké dans des bouteilles situées dans l'embase du dispositif, a tendance à refroidir et les bouteilles peuvent aller jusqu'à se recouvrir d'une pellicule de givre lorsque la température extérieure est fraîche, par exemple, faisant alors chuter le rendement de l'élément chauffant qui perd alors beaucoup de sa puissance. De ce fait, ces appareils n'utilisent pas au mieux le combustible et leur consommation augmente de manière significative en raison du faible rendement de l'élément chauffant, tandis que son efficacité diminue.In addition, when these devices are operating, the gaseous fuel, stored in bottles located in the base of the device, tends to cool and the bottles can go so far as to become covered with a film of frost when the outside temperature is cool. , for example, causing the efficiency of the heating element to drop, which then loses much of its power. Therefore, these devices do not make the best use of the fuel and their consumption increases significantly due to the low efficiency of the heating element, while its efficiency decreases.
Ainsi, la présente invention se propose de résoudre les divers inconvénients précités grâce à des moyens simples, sûrs et efficaces.Thus, the present invention proposes to solve the various aforementioned drawbacks by simple, safe and effective means.
Selon sa caractéristique principale, le dispositif de chauffage pour terrasse de l'invention est du type comportant un élément de chauffage principal porté par un mât porteur et est caractérisé en ce qu'il comporte au moins un élément de chauffage complémentaire disposé au niveau de l'embase du mât porteur.According to its main characteristic, the terrace heating device of the invention is of the type comprising a main heating element carried by a supporting mast and is characterized in that it comprises at least one additional heating element disposed at the level of the 'carrier mast base.
Selon une caractéristique complémentaire du dispositif de chauffage pour terrasse, le ou les éléments de chauffage complémentaires sont portés par un socle qui forme l'embase du mât porteur.According to an additional characteristic of the patio heating device, the complementary heating element or elements are carried by a base which forms the base of the supporting mast.
Selon une autre caractéristique du dispositif de chauffage pour terrasse, celui-ci est caractérisé en ce qu'une partie des éléments de chauffage complémentaires est disposée sur le socle pour être dirigée vers l'extérieur de celui-ci et constituer ainsi des moyens de chauffage externes d'appoint. Selon une caractéristique complémentaire du dispositif de chauffage pour terrasse, une partie des éléments de chauffage complémentaires est disposée sur le socle pour chauffer directement ou indirectement l'intérieur du socle et pour constituer ainsi des moyens de chauffage internes destinés à maintenir une température adéquate à l'intérieur du socle où sont disposés les moyens d'alimentation de l'élément de chauffage principal.According to another characteristic of the patio heater, it is characterized in that a part of the complementary heating elements is arranged on the base to be directed towards the outside thereof and thus constitute heating means. extra external. According to an additional characteristic of the patio heating device, a part of the complementary heating elements is arranged on the base to directly or indirectly heat the interior of the base and thus to constitute internal heating means intended to maintain an adequate temperature at room temperature. interior of the base where the means for supplying the main heating element are arranged.
Selon un mode de réalisation du dispositif de chauffage pour terrasse, les éléments de chauffage complémentaires sont disposés à une hauteur du sol comprise entre 0 et 1 m.According to one embodiment of the patio heating device, the complementary heating elements are arranged at a height from the ground of between 0 and 1 m.
Selon une variante d'exécution du dispositif de chauffage pour terrasse, il comporte des moyens de réglage indépendants de l'élément de chauffage principal et des éléments de chauffage complémentaires.According to an alternative embodiment of the patio heater, it comprises independent adjustment means of the main heating element and complementary heating elements.
Selon une autre caractéristique du dispositif de chauffage pour terrasse, celui-ci est caractérisé en ce qu'il comporte des moyens de régulation automatiques qui permettent la régulation de la température interne du socle grâce à un système agissant sur l'intensité de chauffage des moyens de chauffage internes.According to another characteristic of the patio heating device, it is characterized in that it includes automatic regulation means which allow the regulation of the internal temperature of the base thanks to a system acting on the heating intensity of the means. internal heating.
Selon une caractéristique complémentaire du dispositif de chauffage pour terrasse, les moyens d'alimentation sont disposés dans une enveloppe située à l'intérieur du socle.According to an additional characteristic of the patio heater, the supply means are arranged in an envelope located inside the base.
Selon un mode de réalisation du dispositif de chauffage pour terrasse, le socle est de forme cylindrique et présente des éléments chauffants complémentaires de type radiant uniformément répartis sur sa périphérie. Selon une variante d'exécution du dispositif de chauffage pour terrasse, les éléments chauffants sont de type longitudinaux pour s'étendre de bas en haut sur tout ou partie de la hauteur du socle.According to one embodiment of the patio heater, the base is cylindrical in shape and has additional radiant-type heating elements uniformly distributed around its periphery. According to an alternative embodiment of the patio heater, the heating elements are of longitudinal type to extend from bottom to top over all or part of the height of the base.
D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés qui ne sont donnés qu'à titre d'exemples non limitatifs.Other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings which are given only by way of nonlimiting examples.
Les figures 1 à 7 illustrent plusieurs modes de réalisation différents du dispositif de chauffage de l'invention.Figures 1 to 7 illustrate several different embodiments of the heating device of the invention.
La figure 1 représente en perspective un appareil de chauffage muni d'un élément de chauffage complémentaire de l'invention.Figure 1 shows in perspective a heating device provided with a complementary heating element of the invention.
La figure 2 représente en coupe transversale l'appareil de chauffage de la figure 1.Figure 2 shows in cross section the heater of Figure 1.
Les figures 3a et 3b illustrent en perspective des variantes d'exécution du dispositif de chauffage où l'embase est de forme parallélépipédique.Figures 3a and 3b illustrate in perspective alternative embodiments of the heating device where the base is of parallelepiped shape.
La figure 4 représente en perspective une deuxième variante d'exécution de l'appareil de chauffage où l'embase est de forme cylindrique.Figure 4 shows in perspective a second alternative embodiment of the heating apparatus where the base is of cylindrical shape.
Les figures 5a et 5b illustrent en perspective deux variantes d'exécution de l'embase de l'appareil de chauffage.Figures 5a and 5b illustrate in perspective two alternative embodiments of the base of the heater.
La figure 6 illustre en coupe transversale dans un plan horizontal un mode de réalisation différent des moyens de chauffage complémentaires .Figure 6 illustrates in cross section in a horizontal plane a different embodiment of the additional heating means.
La figure 7 représente selon une vue similaire à la figure 2 une variante d'exécution du dispositif de chauffage pour terrasse. La figure 8 illustre une variante de réalisation.Figure 7 shows in a view similar to Figure 2 an alternative embodiment of the patio heater. Figure 8 illustrates an alternative embodiment.
Selon l'invention, le dispositif de chauffage pour terrasse portant la référence générale (1) comporte des moyens de chauffage qui sont constitués par un élément de chauffage principal (8). Ledit élément de chauffage est avantageusement de type chauffage radiant alimenté au gaz par des moyens d'alimentation (MA), ledit gaz pouvant être, par exemple, du propane ou du butane. L'élément de chauffage (8) peut également être de tout type comme, par exemple, fonctionnant au gaz de pétrole liquéfié (GPL), les moyens d'alimentation (MA) correspondant avantageusement au type de l'élément de chauffage principal utilisé. Ledit élément de chauffage principal (8) est porté par des moyens de maintien, tels qu'un mât porteur (3), de manière à permettre avantageusement audit élément de chauffage d'être situé à une hauteur (L) du sol pouvant être comprise entre 1 et 3 mètres. Le rayonnement de l'élément et/ ou la chaleur fournie par la combustion peut, de plus, être avantageusement orientée ou dirigée vers le bas de manière à chauffer directement l'espace (5) situé à l'aplomb dudit élément de chauffage (8). Notons que l'élément de chauffage (8) se trouve avantageusement au sommet (3a) du mât porteur (3) et qu'il peut être surmonté d'une coupole de réflexion (19) destinée à réfléchir le rayonnement produit par l'élément chauffant (8) vers l'espace (5) à chauffer afin d'éviter une déperdition de chaleur.According to the invention, the terrace heating device bearing the general reference (1) comprises heating means which are constituted by a main heating element (8). Said heating element is advantageously of the radiant heating type supplied with gas by supply means (MA), said gas possibly being, for example, propane or butane. The heating element (8) can also be of any type such as, for example, operating with liquefied petroleum gas (LPG), the supply means (MA) advantageously corresponding to the type of the main heating element used. Said main heating element (8) is carried by holding means, such as a support mast (3), so as to advantageously allow said heating element to be situated at a height (L) from the ground which can be understood between 1 and 3 meters. The radiation of the element and / or the heat supplied by the combustion can, moreover, be advantageously oriented or directed downwards so as to directly heat the space (5) situated directly above said heating element (8 ). Note that the heating element (8) is advantageously located at the top (3a) of the supporting mast (3) and that it can be surmounted by a reflection dome (19) intended to reflect the radiation produced by the element. heater (8) to the space (5) to be heated in order to avoid heat loss.
Selon l'invention, le dispositif de chauffage pour terrasse (1) comporte au moins un élément de chauffage complémentaire (10) disposé au niveau de l'embase (3b) du mât porteur (3). Ainsi, cet élément de chauffage complémentaire (10) est disposé à une hauteur (Hl) du sol comprise entre 0 et 1 m pour pouvoir chauffer la partie inférieure (5a) de l'espace à chauffer (5). Cet élément de chauffage complémentaire est avantageusement du même type que l'élément de chauffage principal (8) et est formé par un élément de chauffage radiant ou brûleur ; il peut donc être alimenté par les mêmes moyens d'alimentation (MA). Ces moyens d'alimentation (MA) sont formés par une bouteille (7) d'un combustible gazeux tel que du propane, du butane ou du gaz de pétrole liquéfié ; ladite bouteille (7) étant disposée au niveau de l'embase (3b) du mât porteur à l'intérieur d'une enceinte ou socle (4) du dispositif de chauffage (1) sur laquelle est fixé le mât porteur (3).According to the invention, the patio heating device (1) comprises at least one additional heating element (10) arranged at the level of the base (3b) of the supporting mast (3). Thus, this additional heating element (10) is arranged at a height (Hl) from the ground of between 0 and 1 m in order to be able to heat the lower part (5a) of the space to be heated (5). This additional heating element is advantageously of the same type as the main heating element (8) and is formed by a radiant heating element or burner; it can therefore be supplied by the same supply means (MA). These supply means (MA) are formed by a bottle (7) of a gaseous fuel such as propane, butane or liquefied petroleum gas; said bottle (7) being disposed at the level of the base (3b) of the carrier mast inside an enclosure or base (4) of the heating device (1) on which the carrier mast (3) is fixed.
Selon un premier mode de réalisation du dispositif de chauffage (1) de l'invention, celui-ci comporte un ou plusieurs éléments de chauffage complémentaires (10) disposés sur le socle (4) du dispositif (1). Ces éléments sont de type radiant et sont dirigés vers l'extérieur (EXT) du socle (4) pour chauffer l'espace (5a) situé autour du socle grâce à leur rayonnement, comme le montrent les figures 1 et 2. De plus, comme l'air chaud a tendance à remonter, les éléments de chauffage (10) sont dirigés ou orientés au maximum vers le bas pour chauffer l'air situé au plus près du sol tel qu'illustré figure 2.According to a first embodiment of the heating device (1) of the invention, it comprises one or more complementary heating elements (10) arranged on the base (4) of the device (1). These elements are of the radiant type and are directed towards the outside (EXT) of the base (4) to heat the space (5a) located around the base thanks to their radiation, as shown in FIGS. 1 and 2. In addition, as hot air tends to rise, the heating elements (10) are directed or oriented as far as possible downwards to heat the air located as close as possible to the ground as illustrated in FIG. 2.
Selon ce premier mode de réalisation, les éléments chauffants complémentaires (10) sont exclusivement orientés vers l'extérieur pour chauffer l'air environnant. Ils sont répartis de manière uniforme sur la périphérie de l'enceinte cylindrique (4) qui comporte les moyens d'alimentation (MA, 7) pour pouvoir rayonner autour de l'ensemble du périmètre de l'enceinte (4). Toutefois, comme le montrent les modes de réalisation décrits ci-après, une partie des éléments chauffants (10) peuvent être destinés à chauffer directement ou indirectement l'intérieur du socle (4) pour maintenir une température adéquate à l'intérieur de celui-ci afin que les bouteilles (7) qui constituent les moyens d'alimentation (MA) puissent alimenter l'élément chauffant principal (8) avec un rendement optimal en lui fournissant un combustible gazeux à une température convenable.According to this first embodiment, the complementary heating elements (10) are exclusively oriented towards the outside to heat the surrounding air. They are distributed uniformly over the periphery of the cylindrical enclosure (4) which comprises the supply means (MA, 7) so as to be able to radiate around the entire perimeter of the enclosure (4). However, as shown by the embodiments described below, a part of the heating elements (10) can be intended to directly or indirectly heat the interior of the base (4) to maintain an adequate temperature inside it. ci so that the bottles (7) which constitute the supply means (MA) can supply the main heating element (8) with a optimal performance by providing a gaseous fuel at a suitable temperature.
Ainsi, selon les variantes d'exécution illustrées figures 3a à 6, les éléments chauffants complémentaires (10), d'une part, forment des moyens de chauffage externes d'appoint (MCA) destinés à chauffer l'air (5a) entourant le socle (4), et d'autre part, constituent des moyens de chauffage complémentaires internes (MCI) destinés à maintenir les moyens d'alimentation (MA, 7) à une température (T) comprise dans une plage de température de fonctionnement optimale des éléments de chauffage (8, 10) qu'ils alimentent.Thus, according to the variant embodiments illustrated in FIGS. 3a to 6, the complementary heating elements (10), on the one hand, form external auxiliary heating means (MCA) intended to heat the air (5a) surrounding the base (4), and on the other hand, constitute additional internal heating means (MCI) intended to maintain the supply means (MA, 7) at a temperature (T) comprised within an optimal operating temperature range of the heating elements (8, 10) which they supply.
On peut noter que cette plage de fonctionnement est essentiellement définie en fonction des caractéristiques techniques des moyens d'alimentation et de l'élément chauffant principal ou brûleur (8) afin d'obtenir un rendement maximum dudit élément et d'optimiser ainsi sa consommation et son efficacité.It can be noted that this operating range is essentially defined as a function of the technical characteristics of the supply means and of the main heating element or burner (8) in order to obtain a maximum efficiency of said element and thus to optimize its consumption and its efficiency.
Selon la première variante illustrée figure 3a, le socle (4)est de forme parallélépipédique et il porte sur chacune de ses faces latérales au moins un élément de chauffage complémentaire (10). Ces éléments (10) qui rayonnent vers l'extérieur (EXT) du socle (4) permettent également par le biais de leur paroi interne de réchauffer indirectement l'intérieur du socle par conduction thermique. Ainsi, la seule présence d'éléments chauffants (10), même dirigés vers l'extérieur (EXT) du socle, permet une augmentation sensible de la température interne dudit socle (4) et donc l'obtention d'un meilleur rendement pour l'élément de chauffage principal. Toutefois, selon une variante d'exécution illustrée figure 3b, le socle (4) peut présenter un élément supplémentaire (lOd) dirigé vers l'intérieur pour chauffer directement par conduction ou par rayonnement, l'air situé autour des moyens d'alimentation (MA, 7) et obtenir ainsi un rendement supérieur de l'élément de chauffage principal (8) qui utilise alors un combustible gazeux «préchauffé».According to the first variant illustrated in Figure 3a, the base (4) is of rectangular shape and it carries on each of its side faces at least one additional heating element (10). These elements (10) which radiate outwards (EXT) from the base (4) also allow, through their internal wall, to indirectly heat the interior of the base by thermal conduction. Thus, the mere presence of heating elements (10), even directed towards the outside (EXT) of the base, allows a significant increase in the internal temperature of said base (4) and therefore obtaining a better yield for the main heating element. However, according to an alternative embodiment illustrated in FIG. 3b, the base (4) may have an additional element (10d) directed inwards to heat directly by conduction or by radiation, the air located around the supply means ( MA, 7) and thus obtain a superior efficiency of the main heating element (8) which then uses a "preheated" gaseous fuel.
Selon une deuxième variante illustrée figure 4 qui forme l'un des modes préférés de l'invention, le dispositif de chauffage (1) comprend un socle de forme cylindrique qui porte le long de plusieurs de ses génératrices des éléments chauffants complémentaires (10) longitudinaux. Ces éléments (10) s'étendent avantageusement sur toute la hauteur (H) du socle (4) et sont répartis uniformément sur la périphérie du socle ; ils sont alimentés en combustible gazeux par l'intermédiaire d'un anneau de distribution (6) situé soit à l'extrémité inférieure des éléments chauffants complémentaires (10), soit à leur extrémité supérieure. Ces éléments complémentaires (10) sont avantageusement de forme cylindrique et rayonnent sur l'ensemble de leur périphérie afin de chauffer l'intérieur (INT) et l'extérieur (EXT) du socle (4) simultanément ; ils constituent ainsi les moyens de chauffage internes (MCI) et les moyens de chauffage externes (MCA). Il va de soi que, selon d'autres variantes, sur l'ensemble des éléments chauffants (10) répartis sur le socle, seuls certains pourraient rayonner vers l'intérieur, tandis que les autres seraient exclusivement dirigés vers l'extérieur. Ainsi, certains éléments chauffants complémentaires (10) constitueraient les moyens de chauffage externes d'appoint (MCA), tandis que d'autres formeraient les moyens de chauffage internes (MCI), lesdits moyens étant donc obtenus séparément par des éléments de chauffage distincts, sans pour autant sortir du champ de protection de l'invention.According to a second variant illustrated in Figure 4 which forms one of the preferred modes of the invention, the heating device (1) comprises a base of cylindrical shape which carries along several of its generators complementary heating elements (10) longitudinal . These elements (10) advantageously extend over the entire height (H) of the base (4) and are distributed uniformly over the periphery of the base; they are supplied with gaseous fuel via a distribution ring (6) located either at the lower end of the complementary heating elements (10), or at their upper end. These complementary elements (10) are advantageously cylindrical in shape and radiate over their entire periphery in order to heat the interior (INT) and the exterior (EXT) of the base (4) simultaneously; they thus constitute the internal heating means (MCI) and the external heating means (MCA). It goes without saying that, according to other variants, of all the heating elements (10) distributed on the base, only some could radiate inwards, while the others would be exclusively directed outwards. Thus, certain complementary heating elements (10) would constitute the external auxiliary heating means (MCA), while others would form the internal heating means (MCI), said means therefore being obtained separately by separate heating elements, without departing from the scope of the invention.
Selon le mode de réalisation illustré figure 4 ou la variante de la figure 5b, le socle (4), qui porte les éléments chauffants complémentaires (10) et auquel est fixé le mât porteur (3), comprend une enceinte interne supplémentaire ou enveloppe (11) à l'intérieur de laquelle se trouve la ou les bouteilles (7) de combustible gazeux. Cette enveloppe réalisée dans un matériau constituant un bon conducteur thermique permet d'isoler physiquement les bouteilles (7) des brûleurs qui forment les éléments complémentaires (10) pour ne pas les exposer directement au rayonnement de ceux-ci tout en permettant à celles-ci d'être maintenues dans une plage de température adéquate. Cette enveloppe permet avantageusement l'utilisation d'éléments chauffants complémentaires (10) dont le rayonnement est dirigé en partie vers l'intérieur du socle (4) ; elle participe ainsi à la sécurité du dispositif.According to the embodiment illustrated in FIG. 4 or the variant of FIG. 5b, the base (4), which carries the complementary heating elements (10) and to which the carrying mast (3) is fixed, comprises an additional internal enclosure or envelope ( 11) inside which is the bottles (7) of gaseous fuel. This envelope made of a material constituting a good thermal conductor makes it possible to physically isolate the bottles (7) from the burners which form the complementary elements (10) so as not to expose them directly to the radiation of these while allowing them to be kept within an adequate temperature range. This envelope advantageously allows the use of complementary heating elements (10) whose radiation is directed partly towards the interior of the base (4); it thus contributes to the security of the device.
Par ailleurs, on peut noter que le socle peut contenir à son extrémité inférieure une ou plusieurs ouvertures latérales destinées à évacuer l'air chaud contenu dans le socle, sensiblement au niveau du sol pour contribuer au chauffage de l'espace (5a) entourant le socle (4).Furthermore, it can be noted that the base can contain at its lower end one or more lateral openings intended to evacuate the hot air contained in the base, substantially at ground level to contribute to the heating of the space (5a) surrounding the base (4).
Selon l'invention, les éléments complémentaires de chauffage (10) sont alimentés par les mêmes moyens d'alimentation (MA, 7) que l'élément de chauffage principal (8) ; toutefois, ils peuvent être gérés de manière indépendante grâce à des moyens de réglage ou de commande (12) propres. Ces moyens de commande (12) peuvent avantageusement permettre le réglage de l'intensité de chauffage des éléments complémentaires (10) en contrôlant leur alimentation par les bouteilles de combustible (7). Pour ce faire, ces moyens de commande comportent un bouton de réglage (12) qui permet de réguler le débit d'alimentation d'une vanne (13) qui relie les bouteilles de combustible gazeux (7) aux éléments (10).According to the invention, the complementary heating elements (10) are supplied by the same supply means (MA, 7) as the main heating element (8); however, they can be managed independently using their own adjustment or control means (12). These control means (12) can advantageously allow the adjustment of the heating intensity of the complementary elements (10) by controlling their supply by the fuel bottles (7). To do this, these control means comprise an adjustment button (12) which makes it possible to regulate the feed rate of a valve (13) which connects the gas fuel bottles (7) to the elements (10).
Selon une variante d'exécution illustrée figure 7, l'élément de chauffage principal (8) est réglé par des moyens de commande propres (50) situés dans la partie supérieure du mât porteur et qui permettent de gérer de manière connue en soi, l'allumage du brûleur et le débit de gaz l'alimentant grâce à un système de vanne et de veilleuse. L'élément ou les éléments complémentaires (10) sont gérés de manière indépendante par un système de vanne propre (75). Pour ce faire, la bouteille (7) alimentant les éléments de chauffage (8, 10) est munie d'un détendeur (80) qui permet de séparer les réseaux d'alimentation qui acheminent le carburant vers les éléments de chauffage. Par ailleurs, on peut noter que l'élément de chauffage complémentaire (10) porté par le socle (4) peut être disposé à l'extérieur du socle pour s'en éloigner légèrement comme le montre la figure 7.According to an alternative embodiment illustrated in FIG. 7, the main heating element (8) is adjusted by own control means (50) located in the upper part of the supporting mast and which make it possible to manage in a manner known per se ignition of the burner and the gas flow feeding it through a valve and pilot system. The element or complementary elements (10) are managed independently by a clean valve system (75). To do this, the bottle (7) supplying the heating elements (8, 10) is provided with a pressure reducer (80) which makes it possible to separate the supply networks which convey the fuel to the heating elements. Furthermore, it can be noted that the complementary heating element (10) carried by the base (4) can be arranged outside the base to slightly move away from it as shown in FIG. 7.
Ainsi, selon les modes de. réalisation préférés de l'invention, le dispositif de chauffage pour terrasse (1) comprend des moyens de réglage indépendants des éléments de chauffage (8, 10), de manière à pouvoir régler avec précision l'intensité de chauffage des différents éléments et de pouvoir ainsi obtenir une répartition de la chaleur cohérente sur l'ensemble de l'espace à chauffer (5) et non plus sur une petite partie de celui-ci, comme le proposent les dispositifs actuels.Thus, according to the modes of. preferred embodiment of the invention, the patio heater (1) comprises means for independent adjustment of the heating elements (8, 10), so as to be able to precisely regulate the intensity of heating of the different elements and of power thus obtaining a coherent distribution of heat over the entire space to be heated (5) and no longer over a small part of it, as proposed by current devices.
Par ailleurs, il peut être prévu des moyens de régulation automatiques destinés à maintenir la température interne (T) du socle (4) et donc des bouteilles (7) dans la plage de fonctionnement définie en fonction des caractéristiques du brûleur principal (8). Ces moyens de régulation peuvent être constitués par un système de thermostat qui permet d'agir sur les moyens de chauffage internes (MCI) pour réguler leur intensité.Furthermore, there may be provided automatic regulation means intended to maintain the internal temperature (T) of the base (4) and therefore of the bottles (7) within the operating range defined according to the characteristics of the main burner (8). These regulation means can be constituted by a thermostat system which makes it possible to act on the internal heating means (MCI) to regulate their intensity.
La figure 8 illustre une variante de réalisation selon laquelle, le chauffage principal (8), est décalé par rapport au chauffage complémentaire (10) pour n'être pas disposé directement au dessus, c'est- à-dire à la verticale dudit chauffage complémentaire. A cet effet, le mât porteur (3) ne s'étend pas verticalement mais est par exemple courbe ou tel que cela est illustré, à savoir avec un mât réalisé en plusieurs tronçons. Par ailleurs, selon cette variante, l'élément de chauffage complémentaire (10) n'est pas disposé d'espace (Z) limité par la bouteille de gaz (7) et/ ou le socle (4), mais au dessus de cette zone, à proximité de cette dernière.FIG. 8 illustrates an alternative embodiment according to which, the main heating (8) is offset with respect to the additional heating (10) so as not to be disposed directly above, that is to say vertically of said heating complementary. To this end, the carrying mast (3) does not extend vertically but is for example curved or such that this is illustrated, namely with a mast produced in several sections. Furthermore, according to this variant, the additional heating element (10) is not provided with space (Z) limited by the gas bottle (7) and / or the base (4), but above this area, close to the latter.
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés à titre d'exemples, mais elle comprend aussi tous les équivalents techniques ainsi que leurs combinaisons. Of course, the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents and their combinations.

Claims

REVENDICATIONS
1. Dispositif de chauffage pour terrasse (1) du type comportant un élément de chauffage principal (8) porté par un mât porteur (3), caractérisé en ce qu'il comporte au moins un élément de chauffage complémentaire (10) disposé au niveau de l'embase (3b) du mât porteur.1. Heating device for a terrace (1) of the type comprising a main heating element (8) carried by a carrying mast (3), characterized in that it comprises at least one additional heating element (10) disposed at the level of the base (3b) of the carrying mast.
2. Dispositif de chauffage pour terrasse (1) selon la revendication2. Terrace heating device (1) according to claim
1, caractérisé en ce que le ou les éléments de chauffage complémentaires (10) sont portés par un socle (4) qui forme l'embase (3b) du mât porteur (3).1, characterized in that the complementary heating element (s) (10) are carried by a base (4) which forms the base (3b) of the carrying mast (3).
3. Dispositif de chauffage pour terrasse (1) selon la revendication3. Terrace heating device (1) according to claim
2, caractérisé en ce qu'une partie des éléments de chauffage complémentaires (10) est disposée sur le socle (4) pour être dirigée vers l'extérieur (EXT) de celui-ci et constituer ainsi des moyens de chauffage externes d'appoint.2, characterized in that a part of the complementary heating elements (10) is disposed on the base (4) to be directed towards the outside (EXT) of the latter and thus constitute additional external heating means .
4. Dispositif de chauffage pour terrasse (1) selon la revendication 2 ou 3, caractérisé en ce qu'une partie des éléments de chauffage complémentaires (10) est disposée sur le socle (4) pour chauffer directement ou indirectement l'intérieur (INT) du socle (4) et constituer ainsi des moyens de chauffage internes (MCI) destinés à maintenir une température adéquate à l'intérieur du socle (4) où sont disposés les moyens d'alimentation (MA, 7) de l'élément de chauffage principal (8).4. Heating device for terrace (1) according to claim 2 or 3, characterized in that a part of the complementary heating elements (10) is arranged on the base (4) to directly or indirectly heat the interior (INT ) of the base (4) and thus constitute internal heating means (MCI) intended to maintain an adequate temperature inside the base (4) where the supply means (MA, 7) of the element are arranged. main heating (8).
5. Dispositif de chauffage pour terrasse (1) selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les éléments de chauffage complémentaires (10) sont disposés à une hauteur (Hl) du sol comprise entre 0 et 1 m. 5. Terrace heating device (1) according to any one of claims 2 to 4, characterized in that the complementary heating elements (10) are arranged at a height (Hl) from the ground between 0 and 1 m.
6. Dispositif de chauffage pour terrasse (1) selon l'une quelconque des revendications 2 à 5, caractérisé en ce qu'il comporte des moyens de réglage indépendants de l'élément de chauffage principal (8) et des éléments de chauffage complémentaires (10).6. Terrace heating device (1) according to any one of claims 2 to 5, characterized in that it comprises independent adjustment means of the main heating element (8) and complementary heating elements ( 10).
7. Dispositif de chauffage pour terrasse (1) selon la revendication7. Terrace heating device (1) according to claim
4, caractérisé en ce qu'il comporte des moyens de régulation automatiques qui permettent la régulation de la température interne (T) du socle (4) grâce à un système agissant sur l'intensité de chauffage des moyens de chauffage internes (MCI).4, characterized in that it comprises automatic regulation means which allow the regulation of the internal temperature (T) of the base (4) thanks to a system acting on the heating intensity of the internal heating means (MCI).
8. Dispositif de chauffage pour terrasse (1) selon l'une quelconque des revendications 2 à 7, caractérisé en ce que les moyens d'alimentation (MA, 7) sont disposés dans une enveloppe (11) située à l'intérieur du socle (4).8. A terrace heating device (1) according to any one of claims 2 to 7, characterized in that the supply means (MA, 7) are arranged in an envelope (11) located inside the base. (4).
9. Dispositif de chauffage pour terrasse (1) selon l'une quelconque des revendications 2 à 9, caractérisé en ce que le socle (4) est de forme cylindrique et présente des éléments chauffants complémentaires (10) de type radiant répartis uniformément sur sa périphérie.9. A patio heating device (1) according to any one of claims 2 to 9, characterized in that the base (4) is of cylindrical shape and has complementary heating elements (10) of the radiant type distributed uniformly over its periphery.
10. Dispositif de chauffage pour terrasse (1) selon l'une quelconque des revendications 2 à 9, caractérisé en ce que les éléments chauffants sont de type longitudinaux pour s'étendre de bas en haut sur tout ou partie de la hauteur du socle (4). 10. Terrace heating device (1) according to any one of claims 2 to 9, characterized in that the heating elements are of the longitudinal type to extend from bottom to top over all or part of the height of the base ( 4).
PCT/FR2001/002887 2000-09-21 2001-09-18 Terrace heating device WO2002025175A1 (en)

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AU2001290041A AU2001290041A1 (en) 2000-09-21 2001-09-18 Terrace heating device

Applications Claiming Priority (2)

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FR00/12015 2000-09-21
FR0012015A FR2814223A1 (en) 2000-09-21 2000-09-21 Heating appliance for use on terraces, e.g. in open-air restaurants or bars, has complementary lower heating element at base to ensure uniform heating

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JPH09196381A (en) * 1996-01-19 1997-07-29 Kaneda Kosakusho:Kk Parasol type heater
FR2764677A1 (en) * 1997-06-16 1998-12-18 Jean Collet TERRACE HEATING DEVICE
EP0976979A1 (en) * 1998-07-31 2000-02-02 O'Connell, Joseph A parasol space heater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09196381A (en) * 1996-01-19 1997-07-29 Kaneda Kosakusho:Kk Parasol type heater
FR2764677A1 (en) * 1997-06-16 1998-12-18 Jean Collet TERRACE HEATING DEVICE
EP0976979A1 (en) * 1998-07-31 2000-02-02 O'Connell, Joseph A parasol space heater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 11 28 November 1997 (1997-11-28) *

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FR2814223A1 (en) 2002-03-22
EP1322894A1 (en) 2003-07-02

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