EP1387123B1 - Strahlungsbrenner - Google Patents

Strahlungsbrenner Download PDF

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Publication number
EP1387123B1
EP1387123B1 EP03077435A EP03077435A EP1387123B1 EP 1387123 B1 EP1387123 B1 EP 1387123B1 EP 03077435 A EP03077435 A EP 03077435A EP 03077435 A EP03077435 A EP 03077435A EP 1387123 B1 EP1387123 B1 EP 1387123B1
Authority
EP
European Patent Office
Prior art keywords
bar
tooth
orifice
radiant panel
projection
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
EP03077435A
Other languages
English (en)
French (fr)
Other versions
EP1387123A1 (de
Inventor
Daniel Lavigne
Koen Van Overbeke
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1387123A1 publication Critical patent/EP1387123A1/de
Application granted granted Critical
Publication of EP1387123B1 publication Critical patent/EP1387123B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • F26B3/305—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements the infrared radiation being generated by combustion or combustion gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/148—Radiant burners using screens or perforated plates with grids, e.g. strips or rods, as radiation intensifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/104—Grids, e.g. honeycomb grids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2211/00—Thermal dilatation prevention or compensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14001—Sealing or support of burner plate borders

Definitions

  • a radiant having a frame on which at least one pair of projections, each having a first and a second projection, are disposed, the first and second projections each being spaced apart from each other. on a longitudinal edge of the frame, each projection being provided with an orifice, said radiant also comprising, by pair of projections, a mobile bar having a first and a second end situated opposite one another, said bar being arranged so that each of the ends can be engaged in one of the respective orifices, said bar serving to press a grid against the frame.
  • Radiants are widely used in industry, particularly in the paper industry for drying cellulosic networks.
  • No. 6,007,329 discloses a radiant comprising a frame provided with two pairs of projections located on the sides of the frame.
  • the bar which comprises a depression at one of its ends is arranged to slide in a first projection provided with a fixed connection means arranged to lock the bar in a longitudinal direction. Once the first end of the bar inserted in the first projection, the operator can slide the second end into the second projection and insert, in an opening in the second projection, a movable connection means blocking the bar in the direction longitudinal.
  • the bar thus fixed serves to support the grid against the frame.
  • a disadvantage of known radiants is that the placement or replacement of the grid can be tricky. The operator must not only hold the grid in place but also the bars while inserting the mobile connection means.
  • the object of the invention is to provide a radiant which can be mounted and replaced in an easier way, while ensuring the proper maintenance of the grid.
  • a radiant according to the invention is characterized in that the first end of the bar comprises a first tooth dimensioned so as to be able to pass through said orifice by pivoting the bar and abutting the projection when the bar passes through the bar. orifice, the bar also having a flexible blade arranged to limit the movement of the bar when, in the grid fixing position, it passes through the orifices of the pair of projections to which it has been allocated.
  • the fact that the bar must pivot in the hole to pass through the latter causes the bar already retains the gate when the bar is mounted in the projection.
  • the presence of the first tooth and the flexible blade keeps the grid with the bar and projections and limit the movement of the bar thus preventing unintentional disengagement of the grid.
  • the assembly or replacement of the grid thus causes only a pivoting and a translational movement of the bar.
  • a first embodiment of a radiant according to the invention is characterized in that a second tooth is juxtaposed with the first tooth, which second tooth is sized to be located in the orifice when the bar is in said fixing position. . A movement of the bar in the vertical direction is thus limited.
  • a second embodiment of a radiant according to the invention is characterized in that the first tooth and the flexible blade are applied on the same end of the bar and extend on either side of the orifice when the bar is in said fixing position. The entire fixing operation of the bar is thus essentially carried on the same projection.
  • a third embodiment of a radiant according to the invention is characterized in that the flexible blade is located at the second end of the bar. Fixing the bar in the projections is thus performed on the two projections of the same pair.
  • a stop Preferably under the flexible blade is located a stop. The movement of the flexible blade is thus limited when the bar is in the fixing position.
  • the radiant 1 according to the invention and illustrated in FIG. 1 comprises a frame 2 which surrounds a grid 10.
  • This grid acts as a protective element of a combustion support (not included in the drawings) which is retained by tabs 23.
  • the grid is also used to increase the radiation of the radiant.
  • the grid has longitudinal edges 10a and 10b shaped cornice and which serve to receive strips 11, as will be described in more detail below. This shape of the grid edges makes it possible to keep the grid colder at this point and thus prevent dilations from dislodging the grid.
  • FIG. 8 and 9 illustrate another embodiment of the grid 10 and means with which the grid and the frame 2 are interconnected.
  • the grid is fixed to a frame 40 formed by small transverse bars 41 and longitudinal 42.
  • the frame is also provided with feet 43 arranged to bear on the frame.
  • FIG. 9 illustrates a set of small transverse and longitudinal bars, it is also possible to form the reinforcement using only small transverse bars or only small longitudinal bars.
  • the grid itself is then either suspended from the frame, or placed on the frame and fixed with eyelets 44 or other means of attachment. When the grid is suspended from the frame, as shown in Figure 8, it also extends below the feet 43.
  • the grid will be made of aluminum or an alloy based on aluminum.
  • the frame will be made of a nickel-chromium alloy or cast iron.
  • the use of aluminum or an aluminum-based alloy is related to the fact that this material is more resistant to corrosion than nichel-chrome. But as the aluminum is less resistant to creep, the frame can support the grid when, under the action of high temperature, it would flow.
  • Each longitudinal edge 7, 8 of the frame 2 comprises a pair of projections 3 and 4 respectively 5 and 6.
  • the projections are placed on the corners of the frame to thereby give maximum length to the bars and ensure optimal support of the grid.
  • the protrusions could also be placed at other locations on the longitudinal edge than those formed by the angles.
  • it is necessary that the first (3 respectively 5) and the second (4 respectively 6) protrusion of the same pair (3,4 respectively 5,6) of projections are arranged at a distance from one another.
  • the distance between two projections must be at least 90 mm.
  • Each projection 3, 4, 5 and 6 is provided with an orifice 9, which preferably is of rectangular shape. These orifices serve for the passage of mobile bars 11 illustrated in FIGS. 2 and 3. Each mobile bar passes through, when the grid and the bar are mounted on the frame, one of the pairs of projections as illustrated in FIGS. 4 and 5. When the bars 11 are engaged in the orifices of the projections which have been attributed to them, they serve to hold the grid 10 in place by pressing it against the frame 2. When the grid has edges in the shape of a cornice (see FIG. lodge in these cornices, keeping the grid in place.
  • Each bar 11 has a first 13 and a second end 17 opposite to each other.
  • the first end 13 preferably has a rounded shape which on the one hand substantially reduces the probability that the operator gets injured when manipulating the bar and on the other hand facilitates the pivoting of the bar in the orifice, as will be described below.
  • the first end 13 of the bar also comprises a first tooth 12 dimensioned in such a way as to be able to through the orifice 9 by pivoting the bar 11 as shown in Figure 4b.
  • the first tooth has a height of 5.5 to 6 mm. This prevents the bar not only to introduce horizontally into the orifice 9, but also to exit the orifice when the bar is in the horizontal position of fixing the gate.
  • the bar also has a flexible blade 16 arranged to limit the movement of the bar 11 when in the grid attachment position.
  • the flexible blade is obtained by cutting into the same mass of the bar thus creating a longitudinal slot a small distance from the bar.
  • the flexible blade is located at the first end 13 of the bar, while in the second embodiment shown in Figure 3, the flexible blade is located at the second end. 17 of the bar.
  • the flexible blade has for example a thickness of 1 to 2 mm and extends over a length of 10 to 25 mm.
  • the bar also has a second tooth 14 juxtaposed to the first tooth 12.
  • the second tooth has a height significantly lower than that of the first, for example 5 mm.
  • the second tooth is dimensioned to be located in the orifice when the bar is in its fixing position.
  • the presence of this second tooth in the orifice limits a vertical movement of the bar in this orifice.
  • the second tooth has for example a length of 5 mm corresponding to that of the projection.
  • a stop 24 is located under the flexible blade 16 to limit the downward movement of the tip of the blade preventing too much great bending down which would allow the passage of the blade through the orifice when the bar is in the fixing position.
  • the bar comprises a third tooth 19 having an inclined flank 20.
  • the third tooth is placed at a distance from the flexible blade 16 so that the flexible blade and the third tooth extend on either side of the second projection when the bar is in its fixing position.
  • the third tooth has for example a height of 10 mm.
  • a fourth tooth 21 which is sized to be located, like the second tooth 14, in the orifice when the bar is in its fixing position.
  • the embodiment of the bar 11 illustrated in Figure 10 is distinguished by the presence of the stop 24 on the flexible blade 16 and no longer below it. This prevents the bar from passing through the projection during its introduction.
  • the bar illustrated in Figure 10 also has an appendage 44 which extends vertically relative to the base of the bar and which is located near the second end 17. This appendix facilitates the handling of the bar. Indeed, since there is more material present thanks to the appendix, a better grip is ensured.
  • the first end 13 is introduced, for example in the projection 3, by tilting the bar at an angle of approximately 20 to 30 ° and by rotating it to the edge of the frame 2 as shown in Figure 4b.
  • pivoting causes the first tooth to land against the projection.
  • the bar is then slid horizontally through the hole by pressing the flexible blade so that the tip of the flexible blade can enter the hole.
  • the bar is slid through this hole a sufficient distance to allow the engagement of the second end of the bar in the orifice of the projection 4.
  • the bar is then moved back so that the second end can enter the orifice of the second projection.
  • the decline of the bar is stopped by the first tooth which bumps against the first projection.
  • the second tooth 14 is in the opening and the first tooth 12 and the flexible blade are located on either side of the first projection thus fixing the bar in the orifices and the grid against the frame.
  • the first tooth is engaged in the same way as described above.
  • the flexible blade is at the second end of the bar, it is engaged in the second protrusion after the first tooth has passed through the first protrusion by making it completely through the orifice of the second projection.
  • the third tooth 19 and the flexible blade 16 will be on either side of the second projection.
  • the second projections of each pair each have a cutout 30 extending on a peripheral portion of this second projection and giving access to the orifice.
  • the cutting of each projection is arranged so as to be oriented towards the inner periphery of the radiant which allows to better retain the grid during its assembly.
  • the cutout is oblique, thus making it possible to follow the inclination of the grid.
  • the flexible blade bends slightly as it passes through the orifice. Once past this orifice, the flexible blade returns to its original shape, so that that the free end of the blade comes up against the second projection when trying to return the bar back.
  • the first tooth is placed against the first projection so as to prevent the bar from crossing the hole of the first projection.
  • the cutout may be on the peripheral edges rising from the projection or extend from the top of the projection to the orifice of the second projection.
  • the bar could be resilient, in this way, the pivoting of the second end would be by bending of the bar relative to the first end, engaged in the first projection. Once the depression placed in front of the projection, the bar returning to its original shape could itself engage in the opening of the first projection via the cut.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Baking, Grill, Roasting (AREA)
  • Blinds (AREA)
  • Gas Burners (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Claims (11)

  1. Strahlungsbrenner (1), der mit einem Gitter (10) und einem Rahmen (2) versehen ist, auf dem mindestens ein Paar Vorsprünge (3, 4, 5, 6), jeweils umfassend einen ersten (3, 5) und einen zweiten Vorsprung (4, 6), angeordnet sind, wobei die ersten und zweiten Vorsprünge jedes Mal in einem Abstand zueinander auf einem Längsrand (10a, 10b) des Rahmens angeordnet sind, wobei jeder Vorsprung mit einer Öffnung (9) versehen ist, wobei der Strahlungsbrenner (1) auch pro Vorsprungpaar einen beweglichen Stab (11) umfasst, der ein erstes (13) und ein zweites Ende (17) aufweist, die einander gegenüber liegen, wobei der Stab (11) derart angeordnet ist, dass jedes der Enden in eine der jeweiligen Öffnungen (9) eingreifen kann, wobei der Stab (11) dazu dient, das Gitter (10) am Rahmen (2) abzustützen, dadurch gekennzeichnet, dass das erste Ende (13) des Stabes (11) einen ersten Zahn (12) umfasst, der derart dimensioniert ist, dass er durch die Öffnung (9) hindurchgehen kann, wobei er den Stab schwenkt, und am Vorsprung anschlagen kann, wenn der Stab die Öffnung durchquert, wobei der Stab (11) auch ein biegsames Blättchen (16) umfasst, das derart angeordnet ist, dass es die Bewegung des Stabs (11) begrenzt, wenn er in der Befestigungsposition des Gitters (10) die Öffnungen (9) des Paars von Vorsprüngen, denen er zugeordnet wurde, durchquert.
  2. Strahlungsbrenner nach Anspruch 1, dadurch gekennzeichnet, dass ein zweiter Zahn (14) neben dem ersten Zahn (12) angeordnet ist, wobei der zweite Zahn (14) derart dimensioniert ist, dass er sich in der Öffnung (9) befindet, wenn der Stab (11) in der Befestigungsposition ist.
  3. Strahlungsbrenner nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das erste Ende (13) eine abgerundete Form aufweist.
  4. Strahlungsbrenner nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der erste Zahn (12) und das biegsame Blättchen (16) an einem selben Ende des Stabes angelegt werden und sich beiderseits der Öffnung (9) erstrecken, wenn sich der Stab (11) in der Befestigungsposition befindet.
  5. Strahlungsbrenner nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das biegsame Blättchen (16) am zweiten Ende (17) des Stabs (11) angeordnet ist.
  6. Strahlungsbrenner nach Anspruch 5, dadurch gekennzeichnet, dass der Stab (11) einen dritten Zahn (19) umfasst, der in einem Abstand zum biegsamen Blättchen (16) und derart angeordnet ist, dass sich das biegsame Blättchen (16) und der dritte Zahn (19) beiderseits des Vorsprungs erstrecken, wenn sich der Stab in der Befestigungsposition befindet.
  7. Strahlungsbrenner nach Anspruch 6, dadurch gekennzeichnet, dass ein vierter Zahn (21) neben dem dritten Zahn (19) angeordnet ist, wobei der vierte Zahn (21) derart dimensioniert ist, dass er sich in der Öffnung (9) befindet, wenn der Stab in der Befestigungsposition ist.
  8. Strahlungsbrenner nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Stab (11) eine Halterung (24) umfasst, die sich entweder unter dem biegsamen Blättchen (16) oder auf dem biegsamen Blättchen befindet.
  9. Strahlungsbrenner nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Gitter (10) einen Längsrand (10a, 10b) umfasst, der die Form eines Gesimses hat und derart angeordnet ist, dass er den Stab (11) darin lagert.
  10. Strahlungsbrenner nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Gitter (10) an einem Beschlag (40) befestigt ist, der sich auf dem Rahmen (2) befindet.
  11. Strahlungsbrenner nach Anspruch 10, dadurch gekennzeichnet, dass der Beschlag (40) entweder aus einer NickelChrom-Legierung oder aus Gusseisen hergestellt ist, wobei das Gitter (10) entweder aus Aluminium oder aus einer Legierung auf Basis von Aluminium hergestellt ist.
EP03077435A 2002-08-02 2003-08-04 Strahlungsbrenner Expired - Lifetime EP1387123B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE200200466 2002-08-02
BE2002/0466A BE1015058A3 (fr) 2002-08-02 2002-08-02 Radiant.

Publications (2)

Publication Number Publication Date
EP1387123A1 EP1387123A1 (de) 2004-02-04
EP1387123B1 true EP1387123B1 (de) 2007-05-16

Family

ID=30005468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03077435A Expired - Lifetime EP1387123B1 (de) 2002-08-02 2003-08-04 Strahlungsbrenner

Country Status (5)

Country Link
US (1) US6923644B2 (de)
EP (1) EP1387123B1 (de)
AT (1) ATE362599T1 (de)
BE (1) BE1015058A3 (de)
DE (1) DE60313834T2 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274006A (de) *
US4829158A (en) * 1988-01-06 1989-05-09 Sunbeam Corporation Portable electric oven utilizing recirculating high speed air for cooking
US6101768A (en) * 1995-09-11 2000-08-15 Springstead; Gary Center supported ventilated raised floor with grated core
US6012380A (en) * 1997-06-16 2000-01-11 Hermansson; A.E. Cooking grill
US5820361A (en) * 1997-07-14 1998-10-13 Innovative Drying Systems Heat emitter
US5996575A (en) * 1998-02-17 1999-12-07 Heat-N-Glo Fireplace Products, Inc. Low cost prefabricated fireplace with fiber insulation firebox
US6039039A (en) * 1998-10-21 2000-03-21 Pina, Jr.; Amado Modular outdoor grill with a pivotal food supporting rack
US6007329A (en) 1998-11-16 1999-12-28 Infratech, L.L.C. Emitter apparatus
US6201181B1 (en) * 1998-12-08 2001-03-13 Ase Americas, Inc. Portable solar module cart
US6190162B1 (en) * 1999-02-11 2001-02-20 Marsden, Inc. Infrared heater and components thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ATE362599T1 (de) 2007-06-15
BE1015058A3 (fr) 2004-09-07
US20040191716A1 (en) 2004-09-30
DE60313834D1 (de) 2007-06-28
US6923644B2 (en) 2005-08-02
EP1387123A1 (de) 2004-02-04
DE60313834T2 (de) 2008-01-24

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