EP1217302B1 - Strahlungsheizgerät mit drehbarem Heizkopf - Google Patents

Strahlungsheizgerät mit drehbarem Heizkopf Download PDF

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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
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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
Application number
EP01420237A
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English (en)
French (fr)
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EP1217302A1 (de
Inventor
Marc Champion
Bruno Cursoux
Alain Huguet
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Application des Gaz SA
Original Assignee
Application des Gaz SA
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Publication date
Application filed by Application des Gaz SA filed Critical Application des Gaz SA
Publication of EP1217302A1 publication Critical patent/EP1217302A1/de
Application granted granted Critical
Publication of EP1217302B1 publication Critical patent/EP1217302B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 .

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  • 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)

Claims (18)

  1. Strahlungsheizvorrichtung zur Verwendung im Freien, welche aufweist:
    einen Gasbrenner (40),
    einen thermischen Reflektor (30), der dem Brenner (40) zugeordnet ist,
    ein Rohr (8), das auf einem Sockel (2) montiert ist und den Brenner (40) sowie den thermischen Reflektor (30) abstützt,
    eine Gaszufuhrleitung, bei der eines der Enden mit dem Brenner (40) über einen Injektor (42) und ein Brennerrohr (44) verbunden ist und bei der das andere Ende dazu bestimmt ist, um an einer Versorgung in Form einer Gasflasche angeschlossen zu werden, wobei die Leitung zumindest teilweise in dem Rohr (8) angeordnet ist,
    eine obere Basis (12), die auf dem oberen Ende des Rohrs (8) montiert ist,
    dadurch gekennzeichnet, dass die Vorrichtung aufweist:
    zwei Arme (22), die sich von der oberen Basis (12) nach oben erstrecken und an denen der thermische Reflektor (30) mit Hilfe von Drehzapfen (24) angelenkt ist, wobei
    der Brenner (40) an dem thermischen Reflektor (30) derart befestigt ist, dass er eine Untereinheit bildet, die um eine durch die Drehzapfen (24) bestimmte horizontale Achse verschwenkt werden kann und mit Hilfe von Blockiermitteln in einer bestimmten Winkelstellung gehalten wird.
  2. Strahlungsheizvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Blockiermittel durch selbstblockierende Drehzapfen (24) gebildet sind.
  3. Strahlungsheizvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der thermische Reflektor (30) eine konkave Form hat, die einen Innenraum begrenzt, in welchem der Brenner (40) befestigt und zentriert ist.
  4. Strahlungsheizvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der thermische Reflektor (30) zentriert angeordnete Verbrennungsrauch-Abzugsöffnungen aufweist.
  5. Strahlungsheizvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Gaszufuhrleitung sich teilweise im Innern eines der Arme (22) erstreckt.
  6. Strahlungsheizvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie eine mit Gas betriebene und auf der oberen Basis (12) montierte Beleuchtungslampe (18) aufweist.
  7. Strahlungsheizvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Beleuchtungslampe (18) von einem thermischen Schirm (20) überdeckt ist.
  8. Strahlungsheizvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der thermische Schirm (20) auf der Lampe (18) gegenüber von dem Brenner (40) montiert ist, der wiederum selbst mit dem thermischen Reflektor (30) einstückig ist.
  9. Strahlungsheizvorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass sie einen ersten (14) und einen zweiten (16) Steuerungshahn aufweist, die es gestatten, den Brenner (40) bzw. die Beleuchtungslampe (18) mit Gas zu versorgen, wobei die Hähne (14, 16) auf der oberen Basis (12) angeordnet sind.
  10. Strahlungsheizvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Rohr (8) teleskopartig ist und hierfür ein unteres Rohr (8a), ein oberes Rohr (8b) und eine Mutter (10) zum Blockieren des Gleitens des oberen Rohrs (8b) bezüglich des unteren Rohrs (8a) aufweist.
  11. Strahlungsheizvorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass sie eine Schraubenfeder (9) aufweist, die sich im Innern des unteren Rohrs (8a) und des oberen Rohrs (8b) erstreckt, wobei die Feder (9) durch den Rückzug des oberen Rohrs (8b) in das untere Rohr (8a) komprimiert wird.
  12. Strahlungsheizvorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass einer der Drehzapfen (24) einen Durchtritt (25) für die Gaszufuhrleitung aufweist, welche den thermischen Reflektor (30) durchquert, damit sie an einem Injektor-Trägerstutzen (43) montiert ist, der wiederum seinerseits über das Brennerrohr (44) mit dem Brenner verbunden ist.
  13. Strahlungsheizvorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass sich das Brennerrohr (44) im Innern des thermischen Reflektors (30) erstreckt und diesen im wesentlichen in seinem Mittelpunkt durchquert, um in den Brenner (40) zu münden.
  14. Strahlungsheizvorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass der Brenner (40) aufweist:
    eine obere kreisförmige Schale (46), die eine zentrierte Zufuhröffnung (46c) besitzt,
    ein kegelstumpfförmiges Innengitter (47), dessen große Basis durch die obere Schale (46) verschlossen ist, wobei das Innengitter (47) unter der oberen Schale (46) befestigt ist, und deren kleine Basis aus einer unteren Schale (49) besteht,
    ein kegelstumpfförmiges Außengitter (48), dessen offene große Basis einen Abstand zu der oberen Schale (46) besitzt, so dass ein Rauchabzugsschlitz (40a) zwischen den beiden Gittern (47, 48) gebildet wird, und dessen kleine Basis, die aus dem das Außengitter (48) bildenden Material besteht, einen größeren Durchmesser als die kleine Basis des Innengitters (47) besitzt,
    wobei die untere Schale (49) im wesentlichen eben ist und sich auf der Innenfläche der kleinen Basis des Außengitters (48) erstreckt und die mechanische Verbindung zwischen den beiden Gittern (47, 48) bildet.
  15. Strahlungsheizvorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die jeweiligen kegelstumpfförmigen Flächen des Außengitters (48) und des Innengitters (47) entsprechende kegelstumpfförmige Flächen (48a, 47a) besitzen, deren Abstand zwischen 5mm und 8mm liegt.
  16. Strahlungsheizvorrichtung nach Anspruch 15, dadurch gekennzeichnet, dass die kegelstumpfförmigen Flächen (47a, 48a) zwischen ihnen einen veränderlichen Abstand bzw. eine veränderliche Beabstandung besitzen, wenn man sich entlang der Flächen (47a, 48a) einer großen Basis zu einer kleinen Basis bewegt oder umgekehrt.
  17. Strahlungsheizvorrichtung nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, dass das Außengitter (48) und das Innengitter (49) jeweils eine Permeabilität besitzen, die zwischen 45% und 55% bei dem Außengitter (48) liegt und zwischen 15% und 25% bei dem Innengitter (49) liegt.
  18. Strahlungsheizvorrichtung nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass die obere Schale (46) eine mittige Verstärkung (46a) besitzt, in welcher die Versorgungsöffnung (46c) eingearbeitet ist.
EP01420237A 2000-12-22 2001-12-18 Strahlungsheizgerät mit drehbarem Heizkopf Expired - Lifetime EP1217302B1 (de)

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 (de) 2002-06-26
EP1217302B1 true EP1217302B1 (de) 2004-09-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01420237A Expired - Lifetime EP1217302B1 (de) 2000-12-22 2001-12-18 Strahlungsheizgerät mit drehbarem Heizkopf

Country Status (4)

Country Link
EP (1) EP1217302B1 (de)
AT (1) ATE276487T1 (de)
DE (1) DE60105535T2 (de)
FR (1) FR2818735B1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
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 (de) * 2008-08-21 2010-02-24 Snord Design, Lda. Lichtstrahl- Ein innovatives Gasanwendungskonzept für eine neue Beleuchtungslösung
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 (zh) * 2019-12-04 2021-06-10 罗朝译 一种取暖器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

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 (de) 2002-06-26
DE60105535D1 (de) 2004-10-21

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