EP1217302B1 - Dispositif chauffant radiant comportant une tête chauffante orientable - Google Patents
Dispositif chauffant radiant comportant une tête chauffante orientable Download PDFInfo
- Publication number
- EP1217302B1 EP1217302B1 EP01420237A EP01420237A EP1217302B1 EP 1217302 B1 EP1217302 B1 EP 1217302B1 EP 01420237 A EP01420237 A EP 01420237A EP 01420237 A EP01420237 A EP 01420237A EP 1217302 B1 EP1217302 B1 EP 1217302B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating device
- burner
- radiant heating
- tube
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- 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 the general technical field radiant heating devices intended in particular for use outside.
- These radiant heating devices allow for example to heat a localized and well-defined area, for example around a table.
- Document FR-A-2 764 677 discloses a radiant heating device intended for outdoor use according to the preamble of claim 1.
- a first object of the invention is to provide a device radiant heater which optimizes the distribution of radiation thermal.
- Another object of the present invention is to improve the performance of a radiant heating device and in particular with regard to radiated thermal energy losses.
- An additional aim of the present invention is to provide lighting associated with radiant heating.
- the device radiant heater includes a gas lighting lamp, mounted on the upper base, facing the burner secured to the thermal reflector.
- the radiant heating device according to the invention shown in Figure 1 includes a base 2 under which are fixed rollers 4 facilitating the movement of the heating device.
- the base 2 is surmounted by a removable cover 6 making it possible to hide the location of a gas supply source such as gas cylinder.
- a tube 8 is fixed on the base 2 and extends vertically towards the top of the radiant heater.
- the tube 8 is telescopic and for this purpose comprises a tube interior 8a, an upper tube 8b and a locking nut 10 of the sliding of the upper tube 8b relative to the lower tube 8a.
- An upper base 12 is mounted on the upper end of the tube 8, in this case the upper tube 8b, and comprises a first tap 14 and a second tap 16 controlling the operation of the device heating.
- the latter also includes a lighting lamp 18 operating on gas and mounted on the upper base 12.
- the lamp lighting 18 is surmounted by a heat shield 20.
- Two arms 22 integral with the upper base 12 extend symmetrically upwards from the latter.
- the radiant heating device comprises also a heating sub-assembly comprising in particular a thermal reflector 30 and a gas burner 40 integral with said reflector thermal 30.
- the gas burner 40 is a burner operating for example at pressures of the order of 28 mbar.
- the latter is articulated on the arms 22 by means of articulations at axis 24.
- the gas burner 40 is advantageously protected by a grid of protection 50 so as to avoid any accidental contact with said burner gas 40.
- the heating subassembly thus comprising the burner 40 fixed on the thermal reflector 30 is capable of being pivoted about an axis horizontal defined by the articulations with axis 24 and maintained in a angular position determined by blocking means. These latter are for example made with self-locking axis 24 joints.
- the thermal reflector 30 has a concave shape delimiting a internal space in which the gas burner 40 is fixed and centered.
- the shape concave of the thermal reflector 30 is for example a shape parabolic.
- the radiant heater also has a conduit gas supply not shown, one end of which is connected to the burner 40 via an injector 42 and a burner tube 44; and whose other end is intended to be connected to the gas supply source, of the gas cylinder type.
- the gas supply duct is arranged at least for part in the tube 8 and in one of the arms 22.
- the burner tube 44 advantageously extends partly outside the reflector thermal 30 and is protected by a cover 32 whose constituent material withstands high temperatures.
- the first 14 and second 16 tap control are advantageously mounted on a control box 17 integrated in the upper base 2.
- the gas supply conduit integrated in the tube 8 is thus connected to the control unit 17 using a tip 17a and a connecting tube 17b.
- the gas supply duct then extends to the inside of an arm 22 as far as a through nozzle nozzle 44 the thermal reflector 30.
- the corresponding pivot 24 is also designed with a passage 25 allowing the gas supply duct to extend up to the nozzle holder nozzle 43 ( Figures 2 and 3).
- the protective grid 50 is fixed by any means and in particular using fixing rods 51 inside the reflector thermal 30.
- the burner tube 44 extending partly outside the thermal reflector 30, passes through the latter substantially at its center to open into the burner 40.
- the radiant heater shown in Figure 4 includes a helical spring 9 extending inside the lower tube 8a and the upper tube 8b, and in support at each of its ends on said tube lower 8a and said upper tube 8b so as to be compressed by a retraction of the upper tube 8b into the lower tube 8a.
- the spring 9 thus makes it possible to absorb the fall of the upper tube 8b supporting the upper base 12, the lamp 18, the thermal reflector 30 and the burner 40 in the event of accidental loosening of the locking nut 10, and it facilitates the lifting of the upper tube 8b.
- the thermal reflector 30 is also provided with orifices of flue gases distributed symmetrically around the opening for the passage of the burner tube 44.
- the heat shield 20 ( Figure 2) is mounted on the lamp 18 to using elastic parts 19, facing the burner 40 secured to the reflector thermal screen 30.
- the thermal screen 20 is for example made up of a metal plate.
- the lamp 18 has internally a burner complementary 18a and an ignition electrode 18b.
- the lamp 18 also has a protective glass 18c held on the base upper 12 using complementary elastic parts 19a.
- the control box 17 is provided with a switch safety 17a allowing the gas supply to be cut off automatically in the event of a fall or tilting of the heating device at least 30 ° radiant ( Figure 5).
- the radiant heating device is shown partially and in section in FIG. 3 which shows the pivot 24 in greater detail.
- the latter is consisting of the end 22a of the arm 22 and a complementary part 26 secured to the heat shield 30.
- the end 22a of the arm 22 and the part 26 are capable of pivoting with respect to one another according to a horizontal axis materialized by a screw 27.
- the latter crosses a part of the part 26 and the end 22a of the arm 22.
- the screw 27 is mounted on the end 22a and is associated with a clamping spring 28. Screw 27 is tightened with a nut self-locking 27a.
- the support of the clamping spring 28 between the head of the screw 27 and an internal wall 26b of the part 26) as well as the support of the nut self-locking 27a on the end 22a makes it possible to obtain a degree of tightening, and therefore a variable pivoting ease of the reflector thermal 30 relative to arm 22.
- An opening 26a is provided in the part 26 so as to allow the gas supply conduit to pass through passage 25 and said opening 26a whatever the angular orientation position of the thermal reflector 30 relative to arm 22.
- the pivot 24 forms a self-locking articulation.
- the burner 40 is for example fixed under the reflector thermal 30 using spacers 45 and corresponding screws 45a, which pass through the wall of the thermal reflector 30.
- the burner 40 is thus optimally positioned in the volume delimited by the reflector thermal 30.
- the burner 40 as shown in Figure 6 has a upper cup 46 circular, having a central recess 46a.
- the latter defines a substantially horizontal fixing plate 46b, provided with a feed opening 46c traversed by the end 44a of the burner tube 44.
- the end 44a of the burner tube 44 passes through preferably the upper cup 46 so as to better distribute the combustion in the burner 40.
- the latter is provided near its end with a collar 44b bearing on the fixing plate 46b and allowing a fixing by crimping the burner tube 44 on the upper cup 46.
- the upper cup 46 also has an edge folded peripheral 46d.
- the burner 40 also includes a grid inner 47 frustoconical, the large base of which is closed by the cup upper, said inner grid 47 being fixed under said cup upper 46 and its small base being produced by a cup lower 49.
- Attaching the inner grid 47 to the upper cup 46 is done for example by crimping the folded edge 46d.
- the interior grille 47 also has a dropped edge allowing it to be fixed on the lower cup, for example using welding spots.
- the burner 40 further comprises a frustoconical external grid 48 whose large base is open and has a spacing with the upper cup 46 of so as to provide a smoke extraction slot 40a between the two grids 47, 48.
- the slot 40a allows better evacuation of the fumes and combustion is thus optimized.
- the small base of the external grid 48 is produced by the constituent material of the outer grid 48 and has a larger diameter larger than that of the small base of the inner grid 47.
- the substantially flat lower cup 49 extends over the face interior of the small base of the exterior grid 48 and makes the connection mechanical between the two grids 47 and 48, for example via of solder points.
- the lower cup 49 also makes it possible to create a screen by the burner 40.
- the lower cup 49 makes it possible to focus the maximum thermal radiation on the side faces of grids 47 and 48.
- the interior 47 and exterior 48 grids have faces corresponding lateral or frustoconical 47a 48a whose spacing is between 5 mm and 8 mm.
- the internal grid 47 reaches a temperature of 800 ° to 850 ° C so as to radiate energy thermal.
- the external grid 48 makes it possible to channel the fumes from combustion and reflect some of the heat radiation on the grid interior 47, thereby increasing the temperature of said interior grid 47.
- the spacing between the inner grid 47 and the inner grid 48 allows thus optimizing combustion hygiene on the one hand and radiation thermal on the other hand.
- the frustoconical faces 47a 48a can present a variable spacing between them when moving along said frustoconical faces 47a and 48a, so as to improve the homogenization of the temperature of said grids.
- the external grid 48 is made with a metal deployed by example in stainless steel whose permeability is respectively between 45% and 55%.
- the inner grid 47 is made with a sheet perforated by example in stainless steel whose permeability is between 15% and 25%.
- the burner 40 is also associated with a device ignition 60 comprising in particular an electrode 61 ( Figure 3).
- Figure 4 shows in dashed lines for example a position additional for the thermal reflector 30.
- a handling handle 33 is provided on the reflector thermal 30 for this purpose.
- the thermal reflector 30 is for example made of aluminum, polished on the reflective side.
- the shape of the thermal reflector 30, associated with the construction of the gas burner 40 directs the thermal radiation towards a annular zone extending around a so-called "cold" cone of approximately 40 ° and the top of which would be in the center of the gas burner 40.
- the heated annular zone can be delimited externally by a 110 ° cone, the apex of which is in the center of the burner 40. From this 110 ° cone, subtract the 40 ° "cold" cone defined above.
- the radiant heating device placed near a table allows to heat an area where people are seated, then that a central area, for example the table and what rests on it, is less heated.
- the radiant heating device thus makes it possible to heat selectively certain privileged areas compared to others.
- the distribution of thermal radiation is further improved by the orientation of the thermal reflector 30.
- the heat shield 20 contributes to obtaining a central cold zone, previously defined as a cone.
- the upper cup 46 and the lower cup 49 have a diameter of 246 mm and 84 mm respectively, and a mutual spacing of 62 mm.
- a radiating surface is then obtained, constituted by the frustoconical face 47a of 520 cm 2 .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Baking, Grill, Roasting (AREA)
- Electric Stoves And Ranges (AREA)
- Drying Of Solid Materials (AREA)
- Magnetic Heads (AREA)
- Electronic Switches (AREA)
Description
- une base supérieure montée sur l'extrémité supérieure du tube,
- deux bras s'étendant vers le haut à partir de la base supérieure sur lesquels est articulé le réflecteur thermique à l'aide de pivots,
- le brûleur étant fixé sur le réflecteur thermique de manière à constituer un sous-ensemble susceptible d'être pivoté autour d'un axe horizontal défini par lesdits pivots, et maintenu dans une position angulaire déterminée grâce à des moyens de blocage.
- une coupelle supérieure circulaire, présentant une ouverture d'alimentation centrée,
- une grille intérieure tronconique dont la grande base est refermée par la coupelle supérieure, ladite grille intérieure étant fixée sous ladite coupelle supérieure, et dont la petite base est réalisée par une coupelle inférieure,
- une grille extérieure tronconique dont la grande base ouverte présente un écartement avec la coupelle supérieure de manière à ménager une fente d'extraction de fumées entre les deux grilles, et dont la petite base réalisée par le matériau constitutif de la grille extérieure, présente un diamètre plus grand que celui de la petite base de la grille intérieure
- la coupelle inférieure étant sensiblement plane, s'étendant sur la face intérieure de la petite base de la grille extérieure, et réalisant la liaison mécanique entre les deux grilles.
- la figure 1 est une vue d'ensemble du dispositif chauffant radiant conforme à l'invention
- la figure 2 est une vue en coupe de la partie supérieure de la figure 1
- la figure 3 est une vue partielle en coupe d'un détail de la figure 2
- la figure 4 est une vue partielle en coupe selon la ligne IV-IV du dispositif chauffant radiant représenté sur la figure 1
- la figure 5 représente un détail agrandi de la figure 4
- la figure 6 représente de façon agrandie une coupe du brûleur du dispositif chauffant radiant conforme à l'invention.
Claims (18)
- Dispositif chauffant radiant destiné à un usage extérieur, comportant :un brûleur à gaz (40),un réflecteur thermique (30) associé au brûleur (40),un tube (8) monté sur un socle (2) et supportant le brûleur (40) et le réflecteur thermique (30)un conduit d'alimentation en gaz dont l'une des extrémités est reliée au brûleur (40) via un injecteur (42) et un tube de brûleur (44), et dont l'autre extrémité est destinée à être connectée sur une alimentation du type bouteille à gaz, ledit conduit étant disposé du moins pour partie dans le tube (8),une base supérieure (12) montée sur l'extrémité supérieure du tube (8),deux bras (22) s'étendant vers le haut à partir de la base supérieure (12), sur lesquels est articulé le réflecteur thermique (30) à l'aide de pivots (24),le brûleur (40) étant fixé sur le réflecteur thermique (30) de manière à constituer un sous-ensemble susceptible d'être pivoté autour d'un axe horizontal défini par lesdits pivots (24), et maintenu, dans une position angulaire déterminée, grâce à des moyens de blocage.
- Dispositif chauffant radiant selon la revendication 1, caractérisé en ce que les moyens de blocage sont réalisés par des pivots (24) autobloquants.
- Dispositif chauffant radiant selon la revendication 1 ou 2, caractérisé en ce que le réflecteur thermique (30) a une forme concave délimitant un espace interne dans lequel le brûleur (40) est fixé et centré.
- Dispositif chauffant radiant selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le réflecteur thermique (30) comporte de façon centrée des orifices d'évacuation de fumées de combustion.
- Dispositif chauffant radiant selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le conduit d'alimentation en gaz s'étend pour partie à l'intérieur de l'un des bras (22).
- Dispositif chauffant radiant selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comporte une lampe d'éclairage (18) fonctionnant au gaz et montée sur la base supérieure (12).
- Dispositif chauffant radiant selon la revendication 6, caractérisé en ce que la lampe (18) d'éclairage est surmontée d'un écran thermique (20).
- Dispositif chauffant radiant selon la revendication 7, caractérisé en ce que l'écran thermique (20) est monté sur la lampe (18) en regard du brûleur (40), lui-même solidaire du réflecteur thermique (30).
- Dispositif chauffant radiant selon l'une quelconque des revendications 6 à 8, caractérisé en ce qu'il comporte un premier (14) et un second (16) robinet de commande permettant d'alimenter en gaz, respectivement le brûleur (40) et la lampe d'éclairage (18), lesdits robinets (14,16) étant agencés sur la base supérieure (12).
- Dispositif chauffant radiant selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le tube (8) est télescopique, et comporte à cet effet un tube inférieur (8a), un tube supérieur (8b) et un écrou de blocage (10) du coulissement du tube supérieur (8b) par rapport au tube inférieur (8a).
- Dispositif chauffant radiant selon la revendication 10, caractérisé en ce qu'il comporte un ressort hélicoïdal (9) s'étendant à l'intérieur du tube inférieur (8a) et du tube supérieur (8b), ledit ressort (9) étant comprimé par la rétraction du tube supérieur (8b) dans le tube inférieur (8a).
- Dispositif chauffant radiant selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'un des pivots (24) présente un passage (25) pour le conduit d'alimentation en gaz, lequel traverse le réflecteur thermique (30) pour être monté sur un embout porte-injecteur (43), lui-même relié au brûleur par le tube de brûleur (44).
- Dispositif chauffant radiant selon la revendication 12, caractérisé en ce que le tube de brûleur (44) s'étend à l'extérieur du réflecteur thermique (30) et traverse ce dernier sensiblement en son centre pour déboucher dans le brûleur (40).
- Dispositif chauffant selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le brûleur (40) comporte :une coupelle supérieure circulaire (46), présentant une ouverture d'alimentation centrée (46c),une grille intérieure (47) tronconique dont la grande base est refermée par la coupelle supérieure (46), ladite grille intérieure (47) étant fixée sous ladite coupelle supérieure (46), et dont la petite base est réalisée par une coupelle inférieure (49),une grille extérieure (48) tronconique dont la grande base ouverte présente un écartement avec la coupelle supérieure (46) de manière à ménager une fente (40a) d'extraction de fumées entre les deux grilles (47,48), et dont la petite base réalisée par le matériau constitutif de la grille extérieure (48), présente un diamètre plus grand que celui de la petite base de la grille intérieure (47),la coupelle inférieure (49) étant sensiblement plane, s'étendant sur la face intérieure de la petite base de la grille extérieure (48), et réalisant la liaison mécanique entre les deux grilles (47, 48).
- Dispositif chauffant radiant selon la revendication 14, caractérisé en ce que les faces tronconiques respectives des grilles extérieure (48) et intérieure (47) présentent des faces tronconiques correspondantes (48a, 47a) dont l'écartement est compris entre 5 mm et 8 mm.
- Dispositif chauffant radiant selon la revendication 15, caractérisé en ce que les faces tronconiques (47a, 48a) présentent entre elles un écartement variable lorsque l'on se déplace le long desdites faces (47a, 48a) d'une grande base vers une petite base ou inversement.
- Dispositif chauffant radiant selon l'une quelconque des revendications 14 à 16, caractérisé en ce que les grilles extérieure (48) et intérieure (49) présentent respectivement une perméabilité comprise respectivement entre 45 % et 55 % pour la grille extérieure (48), et entre 15 % et 25 % pour la grille intérieure (49).
- Dispositif chauffant radiant selon l'une quelconque des revendications 14 à 17, caractérisé en ce que la coupelle supérieure (46) présente un renfoncement central (46a), dans lequel est ménagée l'ouverture d'alimentation (46c).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0016987A FR2818735B1 (fr) | 2000-12-22 | 2000-12-22 | Dispositif chauffant radiant comportant une tete chauffante orientable |
FR0016987 | 2000-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1217302A1 EP1217302A1 (fr) | 2002-06-26 |
EP1217302B1 true EP1217302B1 (fr) | 2004-09-15 |
Family
ID=8858165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01420237A Expired - Lifetime EP1217302B1 (fr) | 2000-12-22 | 2001-12-18 | Dispositif chauffant radiant comportant une tête chauffante orientable |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1217302B1 (fr) |
AT (1) | ATE276487T1 (fr) |
DE (1) | DE60105535T2 (fr) |
FR (1) | FR2818735B1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2379500B (en) * | 2000-12-06 | 2005-07-20 | David Bell | Outdoor heater fixing and mounting assembly |
ITVR20010059U1 (it) * | 2001-11-13 | 2003-05-13 | Cristini Matteo | Radiatore particolarmente per il riscaldamento di ambienti esterni. |
ITMI20030457A1 (it) * | 2003-03-11 | 2004-09-12 | Skg Italia S P A | Testa di riscaldamento migliorata per una stufa. |
DE102004034148B4 (de) * | 2004-07-15 | 2006-05-18 | F. Polzer Gmbh | Gasheizstrahler in Form eines Terrassenstrahlers sowie schwenkbare Baugruppe hierzu |
CN200996650Y (zh) * | 2007-01-23 | 2007-12-26 | 金卫东 | 偏心伸缩式移动户外取暖炉 |
MX357450B (es) * | 2008-05-29 | 2018-07-10 | Bechtold Fleming Designs Llc | Reflector/convertidor de calor infrarrojo de doble domo para calentador de patio. |
EP2157355A1 (fr) * | 2008-08-21 | 2010-02-24 | Snord Design, Lda. | Spot- Concept d'appareil à gaz innovant pour une nouvelle solution d'éclairage |
DE102008051318A1 (de) * | 2008-10-11 | 2010-04-15 | Sim-Tex Gmbh | Abdeckungshaube für Gas-Heizstrahler, z.B. für Terrassen, Gartenhäuser und Aufbauzelten sowie für den Innen und Außenbereich |
US8776777B2 (en) * | 2011-07-13 | 2014-07-15 | Weidong Jin | Gas heater with visible flame guider |
WO2021110112A1 (fr) * | 2019-12-04 | 2021-06-10 | 罗朝译 | Dispositif de chauffage |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2764677B1 (fr) * | 1997-06-16 | 1999-09-03 | Jean Collet | Dispositif de chauffage pour terrasse |
US5964233A (en) * | 1998-08-12 | 1999-10-12 | Clark; Walter B | Patio umbrella with radiant heater |
-
2000
- 2000-12-22 FR FR0016987A patent/FR2818735B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-18 DE DE60105535T patent/DE60105535T2/de not_active Expired - Lifetime
- 2001-12-18 EP EP01420237A patent/EP1217302B1/fr not_active Expired - Lifetime
- 2001-12-18 AT AT01420237T patent/ATE276487T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2818735A1 (fr) | 2002-06-28 |
DE60105535T2 (de) | 2005-01-27 |
FR2818735B1 (fr) | 2003-02-14 |
ATE276487T1 (de) | 2004-10-15 |
EP1217302A1 (fr) | 2002-06-26 |
DE60105535D1 (de) | 2004-10-21 |
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Legal Events
Date | Code | Title | Description |
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