EP0635676A1 - 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
EP0635676A1
EP0635676A1 EP94109301A EP94109301A EP0635676A1 EP 0635676 A1 EP0635676 A1 EP 0635676A1 EP 94109301 A EP94109301 A EP 94109301A EP 94109301 A EP94109301 A EP 94109301A EP 0635676 A1 EP0635676 A1 EP 0635676A1
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EP
European Patent Office
Prior art keywords
burner
fuel
burner tube
wall
baffle plate
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.)
Granted
Application number
EP94109301A
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German (de)
English (en)
Other versions
EP0635676B1 (fr
Inventor
Werner E. Dr.-Ing. Klausmann
Horst Schwendemann
Willy Wiedmann
Klaus Dipl.-Ing. Keh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elco Kloeckner Heiztechnik GmbH
Original Assignee
Elco Kloeckner Heiztechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP0635676A1 publication Critical patent/EP0635676A1/fr
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Publication of EP0635676B1 publication Critical patent/EP0635676B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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, e.g. burner cooling means, noise reduction means
    • F23D11/40—Mixing tubes or chambers; 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 intake 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 fuel concentration 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.
  • 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 pieces 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 downstream and radially outward from the baffle plate 17 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. FIGS. 2a, b) or some other suitable flow form, for example one of the 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.
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 true EP0635676A1 (fr) 1995-01-25
EP0635676B1 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

Country Status (6)

Country Link
EP (1) EP0635676B1 (fr)
AT (1) ATE157759T1 (fr)
DE (3) DE9321525U1 (fr)
DK (1) DK0635676T3 (fr)
ES (1) ES2107086T3 (fr)
GR (1) GR3025471T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774621A3 (fr) * 1995-11-16 1997-09-17 Tokyo Gas Co Ltd Procédé et appareil de combustion à faibles émissions d'oxyde d'azote
EP0867659A1 (fr) * 1997-03-24 1998-09-30 VTH Verfahrentechnik für Heizung AG Procédé et dispositif pour la combustion d'un combustible gazeux
EP0857915A3 (fr) * 1997-02-07 1999-06-16 ELCO KLÖCKNER HEIZTECHNIK GmbH Procédé et tête de brûleur pour la combustion des combustibles liquides ou gazeux
US6367634B1 (en) 1993-12-22 2002-04-09 Baxter International Inc. Blood collection systems including an integral, flexible filter
EP1754937A2 (fr) 2005-08-16 2007-02-21 E.C.B. GmbH Tête de brûleur et procédé pour brûler du combustible
DE102005049245A1 (de) * 2005-10-14 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Brenner
WO2018145702A1 (fr) * 2017-02-10 2018-08-16 Lübbers Anlagen- und Umwelttechnik GmbH Réchauffeur d'air pour une tour de séchage et tour de séchage pour sécher un produit à sécher

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20010178A1 (it) * 2001-03-26 2002-09-26 Riello Spa Bruciatore
ES2379548T3 (es) * 2004-10-28 2012-04-27 Kärcher Futuretech GmbH Tubo de combustión para un quemador para generar gas caliente y procedimiento para la fabricación de dicho tubo
DE102016125526B3 (de) * 2016-12-22 2018-05-30 Max Weishaupt Gmbh Mischvorrichtung und Brennerkopf für einen Brenner mit reduziertem NOx-Ausstoß
US11835228B2 (en) * 2020-07-13 2023-12-05 Gastech Engineering Llc Cylindrical burner apparatus and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB973204A (en) * 1962-03-14 1964-10-21 Hans Maile Improvements in automatic gas-burning arrangements for heating installations
US3330485A (en) * 1965-06-28 1967-07-11 Siemon Mfg Company Gas burner having an air deflector plate
JPS60202225A (ja) * 1984-03-27 1985-10-12 Tokyo Gas Co Ltd 輝炎発生燃焼装置
DE8422852U1 (de) * 1984-08-01 1985-12-05 Reichstein, Manfred, 5600 Wuppertal Mischeinrichtung für Ölbrenner
US5195884A (en) * 1992-03-27 1993-03-23 John Zink Company, A Division Of Koch Engineering Company, Inc. Low NOx formation burner apparatus and methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8221304U1 (de) * 1982-07-27 1982-10-21 Klamke-Record Öl- und Gasbrenner GmbH, 5200 Siegburg Flammrohr fuer einen leichtoelbrenner
EP0347834B1 (fr) * 1988-06-21 1993-05-12 Walter Dreizler Tête de brûleur pour brûleur à gaz à soufflage
EP0378517B1 (fr) * 1989-01-09 1994-09-07 Füllemann Patent Ag Brûleur pour la combustion des combustibles gazeux et/ou des combustibles liquides en état gazeux
DE9007612U1 (fr) * 1989-07-13 1993-05-06 Elco Energiesysteme Ag, Vilters, Ch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB973204A (en) * 1962-03-14 1964-10-21 Hans Maile Improvements in automatic gas-burning arrangements for heating installations
US3330485A (en) * 1965-06-28 1967-07-11 Siemon Mfg Company Gas burner having an air deflector plate
JPS60202225A (ja) * 1984-03-27 1985-10-12 Tokyo Gas Co Ltd 輝炎発生燃焼装置
DE8422852U1 (de) * 1984-08-01 1985-12-05 Reichstein, Manfred, 5600 Wuppertal Mischeinrichtung für Ölbrenner
US5195884A (en) * 1992-03-27 1993-03-23 John Zink Company, A Division Of Koch Engineering Company, Inc. Low NOx formation burner apparatus and methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 55 (M - 458) 5 March 1986 (1986-03-05) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6367634B1 (en) 1993-12-22 2002-04-09 Baxter International Inc. Blood collection systems including an integral, flexible filter
EP0774621A3 (fr) * 1995-11-16 1997-09-17 Tokyo Gas Co Ltd Procédé et appareil de combustion à faibles émissions d'oxyde d'azote
EP0857915A3 (fr) * 1997-02-07 1999-06-16 ELCO KLÖCKNER HEIZTECHNIK GmbH Procédé et tête de brûleur pour la combustion des combustibles liquides ou gazeux
EP0867659A1 (fr) * 1997-03-24 1998-09-30 VTH Verfahrentechnik für Heizung AG Procédé et dispositif pour la combustion d'un combustible gazeux
EP1754937A2 (fr) 2005-08-16 2007-02-21 E.C.B. GmbH Tête de brûleur et procédé pour brûler du combustible
DE102005038662B4 (de) * 2005-08-16 2007-08-23 E.C.B. Gmbh Brennkopf und Verfahren zur Verbrennung von Brennstoff
EP1754937A3 (fr) * 2005-08-16 2014-08-20 ELCO Burners GmbH Tête de brûleur et procédé pour brûler du combustible
DE102005049245A1 (de) * 2005-10-14 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Brenner
WO2018145702A1 (fr) * 2017-02-10 2018-08-16 Lübbers Anlagen- und Umwelttechnik GmbH Réchauffeur d'air pour une tour de séchage et tour de séchage pour sécher un produit à sécher

Also Published As

Publication number Publication date
DK0635676T3 (da) 1998-03-16
DE9321525U1 (de) 1999-01-28
DE59403939D1 (de) 1997-10-09
GR3025471T3 (en) 1998-02-27
DE4324298C2 (de) 1999-01-21
ES2107086T3 (es) 1997-11-16
DE4324298A1 (de) 1995-01-26
EP0635676B1 (fr) 1997-09-03
ATE157759T1 (de) 1997-09-15

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