EP2899463B1 - Ensemble pare-flammes de brûleur - Google Patents

Ensemble pare-flammes de brûleur Download PDF

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Publication number
EP2899463B1
EP2899463B1 EP15275023.8A EP15275023A EP2899463B1 EP 2899463 B1 EP2899463 B1 EP 2899463B1 EP 15275023 A EP15275023 A EP 15275023A EP 2899463 B1 EP2899463 B1 EP 2899463B1
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EP
European Patent Office
Prior art keywords
flame
gas
layer
burner assembly
slots
Prior art date
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Application number
EP15275023.8A
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German (de)
English (en)
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EP2899463A1 (fr
Inventor
Bernard Patrick
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Caledonian Control Technology Ltd
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Caledonian Control Technology Ltd
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Publication of EP2899463A1 publication Critical patent/EP2899463A1/fr
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Classifications

    • 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
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
    • 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
    • F23D14/149—Radiant burners using screens or perforated plates with wires, threads or gauzes as radiation intensifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/9901—Combustion process using hydrogen, hydrogen peroxide water or brown gas as fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/102—Flame diffusing means using perforated plates
    • F23D2203/1026—Flame diffusing means using perforated plates with slotshaped openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/103—Flame diffusing means using screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/106—Assemblies of different layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/108—Flame diffusing means with stacked sheets or strips forming the outlets

Definitions

  • This invention relates to a flame screen arranged as a flame arresting burner assembly for use with the combustion of a gaseous fuel.
  • the leading edge of the flame is usually referred to as a flame front. It is often required to control the flame front in a combustion process, for example to prevent the flame igniting a combustible surrounding atmosphere, or to prevent a so-called "light-back" where the flame front moves in an uncontrolled way backwards into the fuel feed pipe.
  • a simple gauze as in a traditional miner's lamp to isolate the flame front from a possibly hazardous gas laden surrounding atmosphere.
  • Such a gauze is a simple and low cost solution both as a flame arrester and a flame trap, but also a gauze can serve as a burning surface for the actual combustion process itself.
  • a simple gas ring has perforations for the exit of the combustible mixture of gas and air and these perforations act in essentially the same way as a fine gauze and so serve as a flame arresting screen.
  • the size and the depth of the openings in flame arresting screens have a significant effect upon the performance of such screens.
  • the actual shape and physical arrangement of the openings are particularly important when considering burner design. Special characteristics such as flame shape, flame stability, turn-down ratio, ignitability, flame temperature and flame speed all may depend upon the flame screen design.
  • the requirements for a flame trap are generally less arduous than those needed for a flame screen.
  • Flame traps are commonly fitted in a pipeline feeding a combustible fuel mixture to a process.
  • the prime object of a flame trap is to prevent light-back which may occur when the flame moves in an uncontrolled way backwards into the feed pipe with the possible danger of travelling back to and igniting the bulk fuel storage system.
  • the main requirements of a flame trap is to be capable of stopping a flame from passing in the reverse direction with the minimum possible impediment to the flow of fuel in the forward direction.
  • Modern requirements for burners adapted for use with hydrocarbon fuels include very high combustion efficiency, whilst maintaining a very low volumes of undesirable by-products such as carbon monoxide and oxides of nitrogen (NOx). Thorough pre-mixing of the fuel with the required amount of oxygen with little or no take up of oxygen from the combustion space is a good basis to burn hydrocarbons cleanly and completely.
  • an efficient flame screen is needed not only to maintain the performance but also for safety reasons.
  • a fibrous screen Compared to very fine drilled or woven wire screens, a fibrous screen makes it possible to have a large flow area of even smaller but more numerous openings. Also, because the fine fibres may easily glow when heated by a gas flame, a fibrous screen may serve as a simple infra red heat emitter to aid heat transfer.
  • a major disadvantage of a fibre based screen is that it tends to become blocked readily with small airborne particles such as dust and pollen, due not only to the fine openings but also the indirect pathways within such materials. Most applications using fibrous flame screens require fine filtration of the gas and air mixture leading to increased costs in materials and maintenance.
  • a design as just described is not so useful as a burner screen. Due to the need to press intricate shapes, often in difficult materials such as stainless steel, the layers need to be of thin material. In addition, this technique often also relies upon the component parts being sprung or friction fitted together and because pressed metal is particularly prone to changing shape with temperature, reliability in use can be low. The consequence is the arrangement has limited use as a burner flame screen, as the assembled components require a sturdy mount and also a very durable arrangement to contain the gas and air mixture prior to that mixture exiting the screen.
  • a multi-layer flame screen burner assembly which comprises first and second outer layers, at least one flame lyer having a plurality of fingers defined by slots provided in the flame layer, the slots opening along one edge of the flame layer, and at least one gas distribution layer overlying the flame layer and defining an aperture which overlies the slots between the fingers of the adjacent flame layer, the flame layer and overlying gas distribution layer together being disposed between the outer layers, and the burner assembly having at least one port for the admission of combustible gas to the aperture of the gas distribution layer, whereby gas supplied to the port is fed through the aperture to the slots between the fingers of the flame layer.
  • FIG. 1 shows the first embodiment of flame arresting burner assembly in the form of a plurality of planar plates assembled together, for the combustion of a gas.
  • the burner assembly comprises a pair of cover plates 10,11 each of generally rectangular form of essentially identical external shape and size. Each plate has a rectangular extension 12,13 formed from a corresponding edge of each plate and cover plate 11 has a port 14 formed in the extension 13 for the admission of combustible gas to the burner assembly, as will be described below.
  • cover plates 10,11 Provided between those cover plates 10,11 are two flame plates 15 and also one gas distribution plate 16 disposed between the flame plates, the flame plates and gas distribution plates also being of the same external shape and size as the cover plates 10,11.
  • the completed burner assembly has the five plates assembled together in a multi-layer sandwich arrangement.
  • Each flame plate 15 has an opening 17 formed in a rectangular extension 18 to the plate, the opening and extension corresponding to those of cover plate 11.
  • Each flame plate also defines four fingers 19 by way of slots 20 formed through the plate, the slots opening through edge 21 of the plate opposed to the edge of the plate having extension 18.
  • the fingers 19 and slots 20 are both of generally rectangular shape such that the gaps between the fingers are of constant width.
  • the gas distribution plate 16 also has a rectangular extension 22 provided with an aperture 23 having a first part 24 corresponding to the opening 17 of the flame plate and the port 14 of cover plate 11, and a second part 25 of generally rectangular shape and extending across the gas distribution plate, the second part 25 communicating with the first part through a narrow channel 26.
  • a gas supply pipe 27 is connected to the cover plate 11 in register with the port 14 such that when all of the plates are assembled together, the gas is supplied to the first part 24 of the aperture 23 in the gas distribution plate and from there is fed into the second part 25 of that aperture and thence into the slots 20 of the flame plates, all as shown by the arrows in Figure 1 .
  • All of the plates described above are made of relatively thin sheet metal, such as stainless steel.
  • the plates may be made for example by a stamping operation and are assembled together to form the complete burner. Appropriate fixings are provided to hold the plates clamped together.
  • the plates could be held together by way of rivets, spiral pins or other fasteners, or could be welded together.
  • a combination of fasteners may be employed, such as spiral pins and welding at different locations around the burner.
  • Flame plate 30 shown in Figure 2A has four fingers 31 with simple rectilinear slots 32 between the fingers, the overall configuration of the plate being substantially quadrilateral but otherwise the arrangement of the fingers is essentially as shown in Figure 1 .
  • Each slot 32 opens along edge 33 of the plate 30 but is closed by the plate at the other end 34 of the slot.
  • the dimensions of the fingers and of the slots may be selected to give the required flame pattern.
  • Flame plate 35 shown in Figure 2B has slots 36 the width of which increases in the direction towards edge 37 of the plate. This configuration of each slot reduces the gas velocity therein, to aid stability of the flame.
  • flame plate 38 ( Figure 2C ) has slots which narrow towards edge 39. This configuration may be used to maintain gas velocity, when this is required.
  • Flame plate 40 ( Figure 2D ) is similar to plate 30 but the free ends 41 of the fingers 42 are formed with teeth or serrations 43. These serve to extend the flame base and the particular shape and dimensions of these serve to create the required flame profile and effect. It has also been found that the teeth or serrations projecting from the finger ends 41 into the flame base increase the electrical conductivity of the flame to earth, thus greatly improving the reliability of a flame sensing system which may be used with the burner.
  • FIG 3 shows yet another flame plate 45 having an external shape and size similar to the flame plates 15 of the assembly of Figure 1 .
  • this flame plate 45 has an extension 18 provided with an opening 17 as with flame plate 15, as well as fingers 19 and slots 20.
  • the flame plate of Figure 3 differs from that of Figure 1 in that the fingers 19 have side edges which are configured to provide slots having a labyrinthine path for the gas passing along the slots. This is achieved by providing each finger with projections 46 directed towards the corresponding edge of the adjacent finger. It is found that this configuration is particularly suitable for use with certain gases which require additional chilling by the flame screen to prevent light-back. This is especially so for hydrogen when fully pre-mixed with oxygen in stoichiometric proportions.
  • the projections 46 may serve as a baffle to prevent a loud exit noise when shutting down a gas burner that has failed to maintain the required gas/air ratio at turn-off.
  • Gas distribution plate 48 ( Figure 4A ) is of substantially quadrilateral shape, the overall dimensions of which correspond to those of the flame plates of Figures 2A to 2D .
  • the distribution plate 48 has a rectangular aperture 49 extending partway across the plate and disposed such that when the distribution plate overlies flame plate 30 with the edges in alignment, the aperture 49 overlies the slots 32 adjacent the other ends 34 thereof.
  • the size and shape of the aperture 49 may be selected in order to produce a required flame pattern.
  • Gas distribution plate 50 ( Figure 4B ) is similar to distribution plate 48 except that the plate has an extension 51 from one edge and a generally T-shaped aperture 52, including a part disposed in the extension 51.
  • this plate is suitable for use in a burner generally as shown in Figure 1 and the aperture 52 allows the fuel gas to be fed to the slots of the flame plate at a location spaced from the other ends of the slots; this may give a more uniform distribution of gas.
  • the part of the aperture within the extension may form a common conduit to allow the supply of gas to each flame plate.
  • Gas distribution plate 53 ( Figure 4C ) is similar to plate 50 except that edge 54 of the aperture 55 is profiled to assist the chosen distribution of gas to the slots of the chosen flame plate, between the fingers thereof.
  • the edge 54 selectively directs the combustible gas and air mixture towards the sides of the plate and reduces the gas flow to the central slot. Adjustment of the profile allows a wide choice of flame patterns.
  • Gas distribution plate 56 ( Figure 4D ) is similar to plate 53 but includes extra apertures 57,58 adjacent the free ends of the fingers of a chosen flame plate. Selection of appropriate shapes and dimensions for these extra apertures (which need not be as shown in Figure 4D ) allows a precise flame pattern to be achieved. Also illustrated with plate 56 is a profiled edge 59 which will overlie the free ends of the fingers of the chosen flame plate. The profiled edge 59 is designed to extend the burning surface, thereby to create additional flame stability. Adjacent the profiled edge of plate 56 are shown two possible other profiled edges which could be used instead at the edge of plate 56. The profile of that edge 59 may be a combination of curves or angles selected to create the required effect. It has also been found that such a profiled edge increases the electrical conductivity to earth of the flame, greatly to improve the reliability of flame sensing systems.
  • Figures 5A and 5B show a stacking configuration for two gas distribution plates 48 and one flame plate 30, to be used in conjunction with two simple rectangular cover plates (not shown) one of which has a port for the introduction of combustible gas to the burner assembly.
  • Figures 6A and 6B show a stacking configuration similar to that of Figures 5A and 5B but using gas distribution plates similar to those of Figure 1 and two flame plates also similar to those of Figure 1 .
  • the assembly of Figures 6A and 6B has two gas distribution plates 16 and one flame plate 15.
  • the burners of Figures 5A, 5B and Figures 6A,6B are completed by two cover plates (not shown) arranged to overlie the gas distribution plates. At least one of those cover plates, but possibly both, includes a gas/air supply port in register with aperture 23 in the distribution plates.
  • both the flame plate and the gas distribution plate have aligned extensions with openings therein, to allow the flow of gas between the two distribution plates, through the opening in the extension of the flame plate.
  • the arrangement is essentially the same as Figures 5A and 5B .
  • Figure 7 shows a configuration having two circular (in plan) cover plates 61,62, a circular flame plate 63 and at least one circular gas distribution plate 64 with a central opening 65.
  • Cover plate 61 has a gas supply port 66 in communication with the central opening 65 of the gas distribution plate 64, in order that combustible gas may be supplied to the slots 67 between the plurality of generally radially extending fingers 68 of the flame plate 63.
  • Figure 8 shows a configuration similar to that of Figure 7 but having a generally rectangular overall shape.
  • cover plates 70,71 cover plate 70 having a gas supply port 72.
  • Flame plate 73 has a plurality of fingers 74 extending outwardly from a hollow central region with slots 75 between the fingers.
  • a gas distribution plate 76 has an external profile matching that of the outer ends of the fingers 74 and a central aperture 77 for feeding combustible gas to the slots between the fingers.
  • the burner assemblies of Figures 7 and 8 are examples of possible burner assemblies but almost any configuration of flame shape may be achieved by providing flame and distribution plates with appropriate shapes.
  • the flame pattern, length, depth and intensity may be determined by the shape of each cut-out slot and finger of the flame plate, as described above.
  • the examples of Figures 7 and 8 will fire through a full 360 angular degrees. Other angles may be selected depending upon the slot and finger pattern.
  • one such burner assembly has two cover plates, five gas distribution plates and six flame plates arranged alternately, in an overlying manner and secured together to provide a high output burner.
  • FIGs 9 and 10 show a cylindrical embodiment of burner assembly of this invention using the same principles as those of the previous embodiments which are of a planar configuration.
  • This cylindrical burner assembly 79 has inner and outer cylindrical cover rings 80,81, the inner cover ring 80 having a port 82 for the supply of combustible gas to the assembly.
  • the burner assembly also has two cylindrical gas distribution rings 83,84 and two cylindrical flame rings 85,86.
  • the diameters of the rings 80 and 81, and 83 to 86 are such that all six rings interfit closely with ring 80 innermost and ring 81 outermost and the gas distribution rings and flame rings arranged alternately.
  • Figure 10A is an isometric view of the overall assembly with the rings interfitted as described, and Figure 10B is an end view on the overall assembly.
  • the inner gas distribution ring 83 has a first circumferentially-extending aperture 87 which includes an offset region 88 in register with the port 82 when assembled with the inner cover ring, and two further aligned circumferentially-extending apertures 89,90.
  • Outer gas distribution ring 84 also has a first circumferentially-extending aperture 91 with an offset region 92 corresponding to that of the ring 83, and further circumferentially-extending apertures 93.
  • Each of the flame rings 85,86 has a plurality of fingers 94 extending parallel to the axis of the assembly, with slots 95 formed between those fingers.
  • a gas supply pipe (not shown) is connected internally of the inner cover plate 80 to the port 82, for feeding combustible gas to the apertures 87 to 93 of the two gas distribution rings, such that the gas is fed to the slots 95 between the fingers 94 of the flame rings, for combustion at the outer ends of the slots in the same manner as has been described above in relation to the planar embodiments of Figures 1 to 8 .
  • cylindrical inner cover plate 80 is shown as having a gas port 82 to which a gas supply pipe (not shown) may be connected, it would be possible to provide two circular end plates on the inner cover plate 80 thereby to form a chamber within the cylindrical inner cover plate, and to furnish a gas port in one of those circular end plates, for the connection thereto of a gas supply pipe. With such an arrangement, it may be possible to omit the cylindrical inner cover plate; in this case the end plates must be welded at least to the innermost cylindrical gas distribution ring 83. Further, as with the planar burners, different numbers of inter-fitting cylindrical flame and gas distribution plates may be arranged alternately between the cylindrical inner and outer cover plates, in order to achieve the required burning profile.
  • FIGS. 11A to 11C and 11D show two alternative arrangements, where gas is supplied to the burner assembly other than through a port in at least one of the cover plates.
  • parts having essentially the same function as those of the previous embodiments are given the same reference characters; these parts will not be described again here.
  • FIGS 11A to 11C show a burner substantially as has been described above with reference to Figure 1 , except that two similar planar cover plates are used neither of which is provided with a gas supply port. Instead, the extensions 12,13,18 and 22 of the plates are formed as slots opening on the edges of the extensions furthest from the major areas of the plates. Gas is supplied to the assembly through a gas supply pipe 97 of square cross-section and having a cut-out region 98 of such a shape and size that the slots of the extensions of the burner plates will inter-fit snugly therewith, as shown in Figures 11B . Once fitted together ( Figure 11C ), the pipe is welded in position to provide a gas-tight seal around the cut-out region 98.
  • FIG 11D shows an alternative gas supply arrangement for the burner of Figures 11A and 11B .
  • the burner is housed within a generally rectangular plenum chamber 100 defined by opposed side walls 101, opposed top and bottom walls 102 and a rear wall (not visible in Figure 11D ).
  • Combustible gas is supplied to the interior of the chamber 100 by a gas supply pipe 103 provided in a wall of the chamber; two alternative locations for the gas supply pipe are shown but in practice it is envisaged that only one such pipe need be provided.
  • a bezel 104 which fits closely to the side, top and bottom walls of the chamber and also to the burner.
  • the bezel will be welded to the burner and also to the plenum chamber walls, to give a gas-tight seal.
  • the burner of Figure 11D performs as has been described above with reference Figures 11A to 11C .

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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)

Claims (12)

  1. Ensemble de brûleur à pare-flammes multicouche comprenant une première et une deuxième couche extérieure (80, 81), au moins une couche de flamme (85) comportant une pluralité de doigts (94) définis par des rainures (95) réalisées dans la couche de flamme, les rainures (95) s'ouvrant le long d'un bord de la couche de flamme, et au moins une couche de répartition de gaz (83) superposée à la couche de flamme (85) et définissant une ouverture (87) qui se superpose aux rainures (95) entre les doigts (94) de la couche de flamme (85) adjacente, la couche de flamme et la couche de répartition de gaz superposée étant, ensemble, disposées entre les couches extérieures (80, 81), et l'ensemble de brûleur ayant au moins un orifice (82) pour l'admission de gaz combustible vers l'ouverture (87) de la couche de répartition de gaz (83), de sorte que le gaz fourni à l'orifice est introduit via l'ouverture dans les rainures entre les doigts de la couche de flamme, les couches (80, 81 ; 83-86) étant réalisées selon une forme tridimensionnelle sensiblement cylindrique,
    caractérisé en ce que les couches extérieures (80, 81), la ou chaque couche de flamme (85, 86) et la ou chaque couche de répartition de gaz (83, 84) ont la forme de cylindres inter-emboîtés, les rainures (95) dans la ou dans chaque couche de flamme (85, 86) s'étendant de manière sensiblement parallèle à l'axe de la forme cylindrique.
  2. Ensemble de brûleur selon la revendication 1, caractérisé en ce qu'il comprend au moins trois couches (83-86) disposées en alternance entre les couches extérieures (80, 81).
  3. Ensemble de brûleur selon la revendication 1 ou 2, caractérisé en ce que l'orifice (82) pour la fourniture de gaz au brûleur est réalisé dans une couche extérieure (80), l'orifice communiquant avec l'ouverture (87) de la ou de chaque couche de répartition de gaz entre les couches extérieures.
  4. Ensemble de brûleur selon la revendication 1 et comprenant plusieurs couches (83-86) de répartition de gaz et de flamme, caractérisé en que les couches entre les couches extérieures (80, 81) ont des lumières (88, 92) en alignement mutuel, et en ce que, pour chaque couche de répartition de gaz (83, 84), l'ouverture (87, 91) a une première et une deuxième parties (89, 90, 91, 93) en communication l'une avec l'autre.
  5. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les rainures (95) dans la ou dans chaque couche de flamme (85) sont sensiblement parallèles.
  6. Ensemble de brûleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les rainures (95) dans la ou dans chaque couche de flamme (85) se rétrécissent d'une extrémité à l'autre, soit en direction des extrémités internes des rainures soit en direction des extrémités externes des rainures.
  7. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les doigts (94) de chaque côté d'une rainure (95) comprennent des saillies dirigées vers le doigt adjacent, de sorte que les saillies définissant un chemin de labyrinthe pour le flux de gaz.
  8. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les extrémités libres des doigts (94) ont un profil non linéaire de manière à modifier le front de flamme produit par l'ensemble de brûleur.
  9. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord de la ou de chaque couche de répartition de gaz (83) adjacent aux extrémités libres des doigts a un profil non linéaire de manière à modifier le front de flamme produit par l'ensemble de brûleur.
  10. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ouverture (87) dans la ou dans chaque couche de répartition de gaz (83) est généralement rectangulaire et est superposée aux rainures entre les doigts d'une couche de flamme adjacente, au niveau de ou de manière adjacente aux extrémités internes des rainures.
  11. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que la ou en ce que chaque couche de répartition de gaz (83) a un bord opposé aux bords des couches produisant le front de flamme et en ce que l'ouverture (87) dans la ou dans chaque couche de répartition de gaz s'ouvre à travers ledit bord opposé, et en ce qu'il est prévu un conduit d'alimentation en gaz (97) monté sur le brûleur en communication avec la ou avec chaque ouverture s'ouvrant à travers ledit bord opposé pour alimenter ainsi en gaz les rainures entre les doigts dans la ou dans chaque plaque de flamme.
  12. Ensemble de brûleur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ensemble de brûleur est placé dans une chambre de plénum (100) avec les bords des couches produisant le front de flamme exposés à travers une face de la chambre, et en ce qu'un conduit d'admission de gaz (103) est en communication avec l'intérieur de la chambre pour fournir ainsi du gaz au brûleur.
EP15275023.8A 2014-01-22 2015-01-21 Ensemble pare-flammes de brûleur Active EP2899463B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1401045.8A GB201401045D0 (en) 2014-01-22 2014-01-22 Flame Screen Assembly

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EP2899463A1 EP2899463A1 (fr) 2015-07-29
EP2899463B1 true EP2899463B1 (fr) 2016-12-28

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EP3569927B1 (fr) * 2018-05-18 2023-07-26 Yahtec Dispositif de bruleur à pré-mélange air/gaz pulsé
FR3081212A1 (fr) * 2018-05-18 2019-11-22 Yahtec Dispositif de bruleur a pre-melange air/gaz pulse
GB2615588A (en) * 2022-02-14 2023-08-16 Beckett Thermal Solutions Ltd A gas burner membrane

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US2735482A (en) * 1956-02-21 tuttle
US2484123A (en) * 1948-01-29 1949-10-11 Linde Air Prod Co Laminated blowpipe head
US5224855A (en) * 1988-02-27 1993-07-06 Osaka Gas Co., Ltd. Gas burner
KR101199754B1 (ko) * 2010-05-19 2012-11-08 주식회사 경동나비엔 판재로 구성된 예혼합 버너의 염공 배열구조

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