EP0635676B1 - Procédé et brûleur pour la combustion des combustibles liquides ou gazeux - Google Patents

Procédé et brûleur pour la combustion des combustibles liquides ou gazeux Download PDF

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Publication number
EP0635676B1
EP0635676B1 EP94109301A EP94109301A EP0635676B1 EP 0635676 B1 EP0635676 B1 EP 0635676B1 EP 94109301 A EP94109301 A EP 94109301A EP 94109301 A EP94109301 A EP 94109301A EP 0635676 B1 EP0635676 B1 EP 0635676B1
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EP
European Patent Office
Prior art keywords
burner
fuel
pipe
baffle plate
downstream
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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EP94109301A
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German (de)
English (en)
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EP0635676A1 (fr
Inventor
Werner E. Dr.-Ing. Klausmann
Horst Schwendemann
Willy Wiedmann
Klaus Dipl.-Ing. Keh
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Elco Kloeckner Heiztechnik GmbH
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Elco Kloeckner Heiztechnik GmbH
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Classifications

    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details
    • F23D11/40—Mixing tubes; Burner heads
    • F23D11/404—Flame tubes
    • 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
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air

Definitions

  • the invention is concerned with the low-pollutant, in particular low-NO x combustion of liquid or gaseous fuels in combustion plants with a burner projecting into a combustion chamber of a boiler, the burner tube of which has at least one fuel nozzle arranged therein for the supply of the fuel and a subsequent baffle plate .
  • the invention is based on a method and a device in which exhaust gases or combustion products located in the combustion chamber are returned to the burner tube by internal recirculation.
  • nitrogen oxides NO x are formed in addition to other combustion products.
  • the reaction mechanisms that lead to such nitrogen oxides are largely known and are generally described as thermal and prompt or primary NO x formation, and as NO x formation by oxidation of the nitrogen chemically bound in the fuel.
  • a blower gas burner with internal exhaust gas recirculation is known from EP 0 347 834 B1 (DREIZLER).
  • the blower gas burner described therein comprises a burner head, the burner tube of which receives a device having a burner plate for the supply, distribution and swirling of the fuel and the combustion air.
  • On the upstream end of the burner tube there is a web ring with webs or sheet metal tabs projecting radially inwards.
  • the web ring is followed downstream by a flame tube at such a distance that an annular gap is formed between the burner tube and the flame tube.
  • the webs or tabs of the web ring create a build-up on the upstream side in the heat flow of the flame and downstream vacuum zones, which lead to the suction of the exhaust gases from the combustion chamber into the annular gap and from there into the flame tube and thus cause the exhaust gas recirculation. As a result, the exhaust gas only partially reaches the NO x -forming flame areas.
  • Burners with internal exhaust gas recirculation are also known for oil combustion plants.
  • DE-OS 40 08 692 A1 (K ⁇ RTING) describes an oil blower burner with: a mixing tube as a passage for the combustion air, which tapers conically at its downstream end; a baffle plate arranged in the area of the conical taper; and an attachment tube adjoining the mixing tube and overlapping it to form an annular gap.
  • a mixing tube as a passage for the combustion air, which tapers conically at its downstream end
  • a baffle plate arranged in the area of the conical taper
  • an attachment tube adjoining the mixing tube and overlapping it to form an annular gap.
  • German utility model G 89 09 288.0 also describes an oil burner with internal exhaust gas recirculation, in which exhaust gases from the combustion chamber are blown into the edge area of the flame.
  • nozzles are arranged on the inside of the burner tube to accelerate the combustion air and to generate a vacuum area. Openings in the burner tube wall lead into this vacuum region, so that exhaust gases are sucked in from the combustion chamber and are fed to the edge region of the flame together with the combustion air via an annular channel running on the inner wall of the burner tube.
  • burners for reducing nitrogen values are also known, which are designed for the combustion of liquid or gaseous fuels.
  • DE 40 09 222 A1 describes a burner with internal exhaust gas recirculation with: a burner tube, a fuel nozzle arranged therein, an air supply line surrounding the fuel nozzle, and an adjoining baffle plate.
  • the burner tube is provided with slots through which exhaust gas is drawn into the combustion zone of the burner tube as a result of the flow injector effect.
  • these exhaust gases do not always reach the areas of greatest NO x production.
  • EP 0 378 517 A2 discloses a burner with a burner tube, which is followed by a mixing head.
  • the burner contains a fuel nozzle for oil supply, which sprays the fuel against the hot inner wall of the burner tube in order to achieve better atomization and evaporation of the fuel.
  • DE 82 21 304 U1 (KLAMKE) describes a burner with internal exhaust gas recirculation via a plurality of supply channels distributed around the circumference of the burner tube.
  • EP 0288031 B1 (Weisberger) x NO describes a low-carbon burner for the combustion of fuel oil or fuel gas.
  • this is a burner with a so-called external exhaust gas recirculation, ie with an exhaust pipe running outside the boiler room and a recirculation fan used in this pipe.
  • An external exhaust gas recirculation of this type is associated with a considerably higher expenditure on equipment than the internal exhaust gas recirculation.
  • malfunctions can easily occur due to the formation of condensate or contamination in the exhaust gas recirculation line.
  • the invention aims to provide another method and another burner for the combustion of liquid or gaseous fuels, which in particular reduces pollutant emissions, especially NO x emissions.
  • a considerable concentration of substances is built up in an area which is displaced downstream from the baffle plate and adjoins the inner wall of the burner tube.
  • a type of fuel jacket is formed downstream of the baffle plate and against the inner wall of the burner tube.
  • hot zones of the flame and thus areas of greatest NO x production are also displaced radially outward from the baffle plate downstream and from the center of the burner tube.
  • the flame temperature and the oxygen partial pressure are effectively reduced, particularly where the NO x formation is greatest.
  • the flame areas with the greatest risk of NOx formation per se are relocated to where they can be conveniently exposed to exhaust gas, in particular such exhaust gas that is already cooler and has only a small unburned portion.
  • the guide devices are preferably used as flow backflow and / or swirl surfaces (claim 2).
  • the amount of fuel supplied is preferably controlled as a function of the output of the combustion plants and thus in an energy-saving manner (claim 3).
  • One or more fuel nozzles are preferably guided up to the inner wall of the burner tube, in particular in such a way that they blow the fuel axially along the inner wall of the burner tube and / or radially against them (claims 5 to 7).
  • the fuel, in particular fuel gas, transport according to the invention can be implemented particularly easily in an area located downstream of the baffle plate and adjoining the inner wall of the burner tube.
  • the guiding devices against which the fuel flows are preferably uniformly distributed over the circumference of the burner tube and designed as baffle and / or swirl surfaces (claim 8).
  • Such an arrangement of the guide devices enables particularly effective exhaust gas injection into the flame, in particular as a result of the negative pressure zones which form behind such storage areas.
  • negative pressure zones in the shadow of the guide devices cause hot exhaust gases to be returned directly from the flame to the root of the flame in a turbulent flow. This leads to a stable shift of flame root areas to the control devices and thus overall for a stable expansion of the flame in the direction of the inner wall of the burner tube.
  • the guide devices are preferably designed as pipe sections (claim 9). Such a design of the control devices is technically particularly easy to implement.
  • such pipe sections can protrude with their mouth into any vacuum areas located downstream of the baffle plate and use the accumulation effect of such vacuum areas, for example in the flow shadow directly behind the baffle plate, for exhaust gas recirculation.
  • the cool exhaust gases in the pipe sections heated by the flame are heated, which increases their flow rate.
  • the guide devices preferably each comprise an opening in the burner tube wall which serves for exhaust gas circulation and a guide plate which projects into the combustion chamber from the upstream boundary edge of the opening (claim 12).
  • a storage area builds up on the upstream side and a vacuum area on the downstream side, which - as described above - has a favorable effect on the exhaust gas recirculation with a corresponding angle of attack.
  • the guide plates practice with appropriate Inclination against the burner tube axis and / or suitable shaping additionally has a swirl effect on the fuel gas / combustion air mixture.
  • the suction of the exhaust gases from the combustion chamber is further increased by the fact that the guide plates protrude into the flow region of the fuel / combustion air mixture lying downstream of the baffle plate and adjoining the inner wall of the burner tube (claim 13).
  • the flow of the fuel-combustion air mixture running along the inner wall of the burner tube increases the exhaust gas injection.
  • the guide plates preferably have a polygonal and / or curved, in particular delta wing-shaped plan (claim 14).
  • a particularly homogeneous fuel / combustion air mixture is hereby achieved in the area of the flame root, so that complete combustion occurs with a largely homogeneous temperature distribution.
  • the guide plate is a wall section cut free from the burner tube wall and then bent inwards (claim 15). Such a design of the guide plate is particularly simple and inexpensive to manufacture.
  • Suction deflectors are preferably arranged on the outer wall of the burner tube downstream of the exhaust gas recirculation openings in order to prevent recirculation of exhaust gases with too much unburned content through the exhaust gas recirculation openings (claim 16).
  • the still hot exhaust gases do not lead to effective cooling of the flame, at most they serve to improve flame stability. Therefore, it is advantageous to have a recirculation flow from the Exhaust gases escaping from the burner tube with excessive unburned content are to be prevented by appropriate suction deflectors on the outer wall of the burner tube.
  • Flow lines are preferably led from the inlet openings of the exhaust gas guide devices into the space located radially outside of the burner tube, in such a way that exhaust gases can be recirculated from predetermined points in the combustion chamber (claim 17).
  • This has the advantage that cooler exhaust gases with a particularly low unburned fraction can be sucked off specifically from certain points in the combustion chamber and returned to the points at risk of NO x production.
  • flame reversal boilers there is in particular the possibility that exhaust gases from the exhaust gas reversal flow located within the combustion chamber are sucked into the burner tube via such flow lines and returned to the flame.
  • the burner shown in Fig. 1 is designed for the low-pollutant combustion of fuel gas. However, this is not to be understood as restrictive, since burners according to the invention are also suitable for the combustion of liquid fuels.
  • the burner essentially has a burner tube 1 which projects into a combustion chamber 3 of a boiler 5 indicated by its wall.
  • the combustion air is fed to the burner tube 1 in the direction of arrow I, preferably with the aid of a corresponding blower or a suction device.
  • the fuel is supplied via a burner lance 13, which is arranged in the burner tube 1 and which leads into fuel nozzles 15, not shown.
  • a baffle plate 17 is arranged downstream of the burner fuel nozzles 15 and extends perpendicular to the longitudinal axis of the burner tube and, in the usual way, has a central opening 19 for the passage of part of the fuel / combustion air mixture. Radially extending slots for the supply and swirling of combustion air can be provided between the central opening 19 and the outer boundary edge of the baffle plate 17. Another portion of the fuel-combustion air mixture flows through the space between the outer edge of the baffle plate 17 and the inner wall of the burner tube.
  • a combustion zone 23 adjoins the baffle plate downstream, in which the fuel-air mixture introduced is ignited. The flame then emerges from the downstream End of the burner tube 1 in the combustion chamber 3 of the boiler 5.
  • a considerable part of the fuel is supplied to an area downstream of the baffle plate 17 and adjoining the inner wall of the burner tube. Accordingly, there is a high fuel concentration, the highest in the example shown.
  • several burner lances 13 are arranged near the inner wall of the burner tube coaxially to the axis of the burner tube and distributed uniformly over the circumference of the burner tube.
  • Their fuel nozzles 15 are guided upstream of the baffle plate 17 up to the inner wall of the burner tube.
  • the fuel nozzles 15 are preferably oriented such that they blow the fuel in the axial direction along the inner wall of the burner tube (solid line). Alternatively, blow the fuel radially against the inner wall of the burner tube (dashed line) or with an axial and a radial component. As a result, the fuel is transported to the desired area together with the combustion air flowing in from behind. A type of flow jacket of the fuel / combustion air mixture is obtained, the layer thickness of which is approximately 30 mm downstream of the baffle plate. Most of the fuel is enriched within an approx. 10 mm thick jacket layer adjacent to the inner wall of the burner tube.
  • a further, centrally arranged burner lance 13 ' runs along the burner tube axis and blows a comparatively small amount of fuel through the central opening 19 of the baffle plate 17 into the combustion zone 23 of the burner tube 1 with its fuel nozzle 15'.
  • hot zones of the flame and thus the flame areas with the greatest NOx production per se are displaced from the baffle plate 17 downstream and radially outward in the direction of the inner wall of the burner tube. There, they can be supplied with cool exhaust gas comparatively easily by internal exhaust gas recirculation.
  • exhaust gas recirculation openings 25 are introduced downstream of the baffle plate 17 (at a distance of approximately 40 mm) in the burner tube wall - evenly distributed over the circumference of the burner tube 1.
  • a guide plate 27 projects into the combustion zone 23 of the burner tube 1 from the upstream boundary edge of these openings 25.
  • the guide plates 27 can have the shape of a delta wing (cf. FIG. 2a, b) or some other suitable flow form, for example one of the ones shown in FIG. 4a, c, d, e and / or f forms shown. They consist of a burner tube wall section cut out of the burner tube wall and then bent inwards.
  • Each baffle plate 27 causes a jam in front of it, ie upstream, and a vacuum zone behind it, ie downstream, in the fuel / combustion air flow jacket adjacent to the inner wall of the burner tube. These vacuum zones suck in the exhaust gases from the combustion chamber 3 and thus lead to exhaust gas recirculation.
  • the shape according to the invention in the manner of a delta wing leads to "standing vortices" on the guide plates 27, which contribute to flame stabilization. In this way, an expansion of the flame in the direction of the inner wall of the burner tube and displacement of flame root areas toward the guide plates 27 is achieved. As a result, the recirculated exhaust gases are injected into the hot zones of the flame and thus into the areas of greatest NO x production.
  • annular diaphragm 28 is arranged around the outer wall of the burner tube 1 downstream of the exhaust gas return openings 25 as a return deflector in order to prevent recirculation of exhaust gases with an excessively high unburned content directly from the combustion zone 23.
  • FIGS. 2a and 2b several - here eighteen - radially inwardly projecting guide plates 27 are evenly distributed over the circumference of the burner tube 1 and each have approximately the shape of a delta wing or an equilateral or only isosceles triangle.
  • the guide devices according to the invention are designed as pipe sections 29 which break through the burner pipe wall downstream of the baffle plate 17 and are inclined in such a way that the pipe section mouth lies downstream of the pipe section entrance.
  • the pipe section mouth protrudes here into the flow jacket of the fuel / combustion air mixture lying downstream of the baffle plate 17 and adjoining the inner wall of the burner pipe.
  • the gas-air mixture flowing past the pipe piece mouths entrains cool exhaust gases from the combustion chamber 3 of the boiler 5 (Bernoulli principle), which leads to internal exhaust gas recirculation.
  • 3a shows the uniform distribution of the - here eighteen - pipe sections 29 over the circumference of the burner pipe wall.
  • FIGS 4a, b, c, d, e and f illustrate different configurations of the guide devices 27 and 29, respectively.
  • Each figure schematically represents a section from a settlement of the section of the burner tube 1 equipped with the guide devices 27, 29.
  • the guide devices 27 are each designed as a wall section cut free from the burner tube wall and then bent inwards.
  • the bending edge 31 thereof runs in FIGS. 4c-e at right angles to the longitudinal axis of the burner tube 1; however, in FIGS. 4a and 4f, at an angle to the longitudinal axis of the burner.
  • the flow angle of the guide plates 27 can be changed by bending the guide plates 27 to different degrees around their bending edge 31. If the guide plates 27 - as seen in the direction of flow - are symmetrical and they have a bending edge 31 running at right angles to the longitudinal axis of the burner tube, then they have practically no swirl effect on the fuel / combustion air mixture. Corresponding configurations are shown in FIGS.
  • the guide plates 27 are essentially in the form of right-angled lobes, but with a bending edge 31 that runs obliquely to the longitudinal axis of the burner tube.
  • the guide plates 27 according to FIG. 4d essentially correspond to FIG. 4a, but have a right angle to the longitudinal axis of the burner tube running bending edge 31.
  • tubular guide devices 29 are shown which taper towards the inside of the burner tube.
  • 4c illustrates guide plates 27 in the form of isosceles triangles with an upstream base or bending edge 31 and a downstream tip.
  • the guide plates 27 in the form of a symmetrical trapezoid, the narrow side of which is the upstream bending edge 31.
  • This guide plate 27 is also in the manner of a delta wing against the flow.
  • the guide plates 27 have the shape of a right-angled triangle, the edges of which lie at right angles to one another lie transversely to and in the direction of the longitudinal axis of the burner tube and the base of which extends obliquely to the axis of the burner tube.
  • a burner which, due to the fuel supply according to the invention and the design and arrangement of the exhaust gas guiding devices according to the invention, achieves a particularly effective reduction in NOx emissions in the combustion zone of the burner tube.
  • the burner according to the invention is characterized by an almost complete combustion of the fuel-combustion air mixture, so that in addition to the NO x values, the other pollutant emission values are reduced to a considerable extent.
  • the effort required for the design of the burner according to the invention is low, since in particular the fuel supply according to the invention and the control devices can be implemented inexpensively.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)

Claims (17)

  1. Procédé de combustion pauvre en substances nocives, en particulier pauvre en NOx, de combustibles liquides ou gazeux dans des installations de chauffage équipées d'un brûleur s'étendant dans une chambre de combustion (3) d'une chaudière (5), dont le tube de brûleur (1) présente au moins une buse à combustible (15; 15') placée dedans pour l'admission du combustible, et un écran de retenue (17) s'y rattachant, dans lequel :
    a) une partie importante du combustible est amenée dans une zone située en aval de l'écran de retenue (17) et voisine de la paroi interne du tube de brûleur,
    b) les gaz d'échappement se trouvant dans la chambre de combustion sont réintroduits par recirculation interne vers des zones de dépression formées dans le tube de brûleur (1), en aval de l'écran de retenue (17), utilisant pour ce faire un ou plusieurs dispositifs de guidage (27, 25; 29) s'étendant dans les zones de dépression qui passent à travers le tube de brûleur (1).
  2. Procédé selon la revendication 1, caractérisé en ce que les dispositifs de guidage (25, 27; 29) sont utilisés en tant que surfaces de retenue et/ou en tant que surfaces de mise en rotation pour l'écoulement.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité de combustible admise est régulée en fonction de la puissance du brûleur.
  4. Brûleur, en particulier pour l'exécution du procédé selon l'une quelconque des revendications précédentes, équipé d'un tube de brûleur (1) s'étendant dans une chambre de combustion (3) d'une chaudière (5), avec au moins une buse à combustible (15; 15') placée dedans pour l'admission du combustible, et un écran de retenue (17) s'y rattachant, dans lequel :
    a) les buses pour combustible (15; 15') sont placées dans le tube de brûleur (1) de telle manière qu'une partie importante du combustible est acheminée vers une zone située en aval de l'écran de retenue (17) et voisine de la paroi interne du tube de brûleur,
    b) un ou plusieurs dispositifs de guidage des gaz d'échappement (25, 27; 29) passant à travers le tube de brûleur (1) mènent vers des zones de dépression formées dans le tube de brûleur (1), en aval de l'écran de retenue (17), de telle manière que les gaz d'échappement se trouvant dans la chambre de combustion (3) sont réintroduits par recirculation interne dans les zones de dépression.
  5. Brûleur selon la revendication 4, caractérisé en ce qu'au moins une buse à combustible (15), en particulier une buse à gaz combustible, est prolongée jusqu'au voisinage de la paroi interne du tube de brûleur.
  6. Brûleur selon la revendication 5, caractérisé en ce que la buse à combustible (15) injecte le combustible dans une direction axiale le long de la paroi interne du tube de brûleur.
  7. Brûleur selon la revendication 5 ou 6, caractérisé en ce que la buse à combustible (15) injecte le combustible dans une direction radiale contre la paroi interne du tube de brûleur.
  8. Brûleur selon l'une quelconque des revendications 4 à 7, caractérisé en ce que les dispositifs de guidage (25, 27; 29) recevant l'écoulement de combustible sont répartis régulièrement sur le pourtour du tube de brûleur (1) et ont la forme de surfaces de retenue et/ou de mise en rotation.
  9. Brûleur selon l'une quelconque des revendications 4 à 8, caractérisé en ce que les dispositifs de guidage (25, 27; 29) ont la forme de raccords de tube (29).
  10. Brûleur selon la revendication 9, caractérisé en ce que la bouche des raccords de tube s'étend jusqu'à une zone d'écoulement du mélange combustible-air de combustion située en aval de l'écran de retenue (17) et voisine de la paroi interne du tube de brûleur.
  11. Brûleur selon la revendication 10, caractérisé en ce que les raccords de tube (29) sont placés en étant inclinés par rapport à la paroi du tube de brûleur, de telle sorte que la bouche du raccord de tube se trouve en aval de l'entrée du raccord de tube.
  12. Brûleur selon l'une quelconque des revendications 4 à 8, caractérisé en ce que les dispositifs de guidage (25, 27; 29) entourent chacun une ouverture (25) dans la paroi du tube de brûleur, servant à la circulation des gaz d'échappement ainsi qu'une plaque de guidage (27) s'étendant depuis le bord de délimitation (31) de l'ouverture en amont, jusque dans le tube de brûleur (1).
  13. Brûleur selon la revendication 12, caractérisé en ce que les plaques de guidage (27) s'étendent dans la zone d'écoulement du mélange combustible-air de combustion située en aval de l'écran de retenue (17) et voisine de la paroi interne du tube de brûleur.
  14. Brûleur selon la revendication 12 ou 13, caractérisé en ce que les plaques de guidage (27) ont un tracé polygonal et/ou recourbé, en particulier en forme d'aile delta.
  15. Brûleur selon l'une quelconque des revendications 12 à 14, caractérisé en ce qu'une ou plusieurs plaques de guidage (27) sont respectivement une portion de paroi découpée librement dans la paroi du tube de brûleur et repliée ensuite vers l'intérieur.
  16. Brûleur selon l'une quelconque des revendications 4 à 15, caractérisé en ce que des déflecteurs pour recirculation (28) sont placés au niveau de la paroi externe du tube de brûleur (1) en aval des ouvertures pour la recirculation des gaz d'échappement (25), afin d'empêcher une recirculation à travers les ouvertures pour la recirculation des gaz d'échappement (25) de gaz d'échappement ayant une partie non brûlée trop importante.
  17. Brûleur selon l'une quelconque des revendications 4 à 16, caractérisé en ce que des conduites pour écoulement sont dirigées depuis les ouvertures d'admission (25) des dispositifs de guidage des gaz d'échappement (25, 27; 29) jusque dans l'espace situé à l'extérieur du tube de brûleur (1) au plan radial, de telle sorte que des gaz d'échappement venant d'emplacements prédéterminés de la chambre de combustion (3) peuvent être réintroduits.
EP94109301A 1993-07-20 1994-06-16 Procédé et brûleur pour la combustion des combustibles liquides ou gazeux Expired - Lifetime EP0635676B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4324298 1993-07-20
DE4324298A DE4324298C2 (de) 1993-07-20 1993-07-20 Verfahren zur Verbrennung von flüssigen oder gasförmigen Brennstoffen in Feuerungsanlagen und Brenner zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP0635676A1 EP0635676A1 (fr) 1995-01-25
EP0635676B1 true EP0635676B1 (fr) 1997-09-03

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EP94109301A Expired - Lifetime EP0635676B1 (fr) 1993-07-20 1994-06-16 Procédé et brûleur pour la combustion des combustibles liquides ou gazeux

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EP (1) EP0635676B1 (fr)
AT (1) ATE157759T1 (fr)
DE (3) DE4324298C2 (fr)
DK (1) DK0635676T3 (fr)
ES (1) ES2107086T3 (fr)
GR (1) GR3025471T3 (fr)

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US7891971B2 (en) 2005-08-16 2011-02-22 Elco Burners Gmbh Combustion head and method for combusting fuel

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JPH09137916A (ja) * 1995-11-16 1997-05-27 Tokyo Gas Co Ltd 窒素酸化物低発生燃焼方法及び装置
DE19704721B4 (de) * 1997-02-07 2006-08-17 E.C.B. Gmbh Verfahren und Brennkopf zur Verbrennung von flüssigen oder gasförmigen Brennstoffen
EP0867659A1 (fr) * 1997-03-24 1998-09-30 VTH Verfahrentechnik für Heizung AG Procédé et dispositif pour la combustion d'un combustible gazeux
ITBO20010178A1 (it) * 2001-03-26 2002-09-26 Riello Spa Bruciatore
EP1653153B1 (fr) * 2004-10-28 2012-01-25 Kärcher Futuretech GmbH Tube foyer pour un brûleur à gaz chauds et procédé de fabrication d'un tel tube
DE102005049245A1 (de) * 2005-10-14 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Brenner
DE102016125526B3 (de) * 2016-12-22 2018-05-30 Max Weishaupt Gmbh Mischvorrichtung und Brennerkopf für einen Brenner mit reduziertem NOx-Ausstoß
DE202017100733U1 (de) * 2017-02-10 2017-03-30 Lübbers Anlagen- und Umwelttechnik GmbH Lufterhitzer für Trockenturm
US11835228B2 (en) * 2020-07-13 2023-12-05 Gastech Engineering Llc Cylindrical burner apparatus and method
CN117091133B (zh) * 2023-09-25 2025-11-14 上海全颉环境设备有限公司 一种烟气内循环低氮燃烧头

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DK0635676T3 (da) 1998-03-16
DE4324298C2 (de) 1999-01-21
GR3025471T3 (en) 1998-02-27
ES2107086T3 (es) 1997-11-16
ATE157759T1 (de) 1997-09-15
EP0635676A1 (fr) 1995-01-25
DE9321525U1 (de) 1999-01-28
DE59403939D1 (de) 1997-10-09
DE4324298A1 (de) 1995-01-26

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