EP0892212B1 - Buse de pulvérisation par pression - Google Patents

Buse de pulvérisation par pression Download PDF

Info

Publication number
EP0892212B1
EP0892212B1 EP98810650A EP98810650A EP0892212B1 EP 0892212 B1 EP0892212 B1 EP 0892212B1 EP 98810650 A EP98810650 A EP 98810650A EP 98810650 A EP98810650 A EP 98810650A EP 0892212 B1 EP0892212 B1 EP 0892212B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
bore
liquid
outlet bore
nozzle outlet
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
EP98810650A
Other languages
German (de)
English (en)
Other versions
EP0892212A3 (fr
EP0892212A2 (fr
Inventor
Klaus Dr. Döbbeling
Christian Dr. Steinbach
Martin Dr. Valk
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.)
General Electric Switzerland GmbH
Original Assignee
Alstom Schweiz AG
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
Application filed by Alstom Schweiz AG filed Critical Alstom Schweiz AG
Publication of EP0892212A2 publication Critical patent/EP0892212A2/fr
Publication of EP0892212A3 publication Critical patent/EP0892212A3/fr
Application granted granted Critical
Publication of EP0892212B1 publication Critical patent/EP0892212B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3478—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet the liquid flowing at least two different courses before reaching the swirl chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3442—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cone having the same axis as the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • F23D11/38—Nozzles; Cleaning devices therefor
    • F23D11/383—Nozzles; Cleaning devices therefor with swirl means

Definitions

  • the invention relates to the field of combustion technology. It affects a pressure atomizing nozzle, comprising a nozzle body with a mixing chamber, which is connected to an outside space via a nozzle bore.
  • the nozzle body has a first feed channel for a liquid to be atomized through which said liquid is under pressure and swirl-free Chamber can be fed. At least one opens into the chamber of the nozzle body another supply channel for part of the liquid to be atomized or for one second liquid to be atomized, through which said part of the liquid or the second liquid can be supplied under pressure and with swirl.
  • the feed hole of the first feed channel lies with the Nozzle outlet bore on one axis.
  • Such Nozzle is known for example from GB 2 001 262.
  • Atomizer burners are known in which the oil which is burned mechanically finely distributed. It is divided into fine droplets of approx. 10 to 400 ⁇ m Disassembled diameter (oil mist), which is mixed with the combustion air in evaporate and burn the flame.
  • oil mist Disassembled diameter
  • pressure atomizers see Lueger Lexicon dertechnik, Manual Verlags-Anstalt Stuttgart, 1965, volume 7, p.600
  • the oil is supplied to an atomizing nozzle under high pressure by an oil pump.
  • the oil passes into an essentially tangential slot Swirl chamber and leaves the nozzle via a nozzle bore. This ensures that the oil particles have two motion components, one axial and one radial, preserved.
  • the one emerging from the nozzle bore as a rotating hollow cylinder Oil film expands to a hollow cone due to centrifugal force Edges vibrate unstably and tear into small oil droplets.
  • the atomized oil forms a cone with a more or less large opening angle.
  • Swirl nozzles pressure atomizers
  • air-assisted atomizers of the known types with a pressure up to approx. 100 bar are hardly suitable because they do not allow small spreading angle, the atomization quality is restricted and the impulse of the drop spray is low.
  • swirl-stabilized burners e.g. double-cone type burners
  • the flame stabilization is achieved with the help of a swirl flow Area between the swirl generator and the recirculation area, which through The swirl flow bursts open for mixing and evaporation of liquid fuel.
  • the fuel is atomized into the flow, which is what easiest to do with a pressure atomizing nozzle.
  • droplets exposed to a swirl flow field can cause one The droplets are thrown out due to the centrifugal forces (cyclone effect). Wetting the swirl generator or the mixing tube walls would have Consequence that the mixture deteriorates and that there is a risk of flashback along the walls and the appearance of deposits due to Fuel decomposition occurs.
  • An improvement is with the high pressure atomizing nozzle known from EP 0 496 016 B1 to reach.
  • This consists of a nozzle body in which a turbulence chamber is formed which has at least one nozzle bore communicates with an outside space, and which have at least one Has feed channel for the liquid to be atomized under pressure. It is characterized in that the cross-sectional area of the turbulence chamber opening feed channel is larger by a factor of 2 to 10 than that Cross-sectional area of the nozzle bore.
  • the aim is to if possible over the entire load range of the gas turbine (approx. 10% to 120% Mass flow based on nominal load conditions) a drop spray generate a stable, low-emission combustion throughout the area in a given air flow field.
  • the invention tries to avoid all of these disadvantages.
  • a Methods for effective operation of this pressure atomizing nozzle are proposed become.
  • a pressure atomizing nozzle comprising a Nozzle body, in which a mixing chamber is formed, which has a Nozzle outlet bore communicates with an outside space and a first one Feed channel with a feed hole for a liquid to be atomized through which said liquid can be supplied without swirl and under pressure, wherein at least one additional supply channel for part of the to the chamber atomizing liquid or for a second liquid to be atomized, through which said part of the liquid or the second liquid under Pressure and swirl can be fed, the feed bore of the first feed channel lies on one axis with the nozzle outlet bore, thereby achieved that the outlet-side diameter of the nozzle outlet bore is at most so is as large as the diameter of the feed bore and the length of the nozzle outlet bore at least 2 to a maximum of 10 times the outlet side Diameter of the nozzle outlet bore.
  • the advantages of the invention include that it enables the possibility is given, the spray angle of the nozzle to an extremely small angle, i.e. up to a full jet without reducing disturbing turbulence. So that will the peculiarities of the swirl flow field of a swirl-stabilized burner Taken into account. On the other hand, the operation of a conventional one atomizing pressure atomizer nozzle can be maintained. Between these Extreme is a sliding control, the setting of all operating conditions, i.e. Spray angles and degrees of atomization possible.
  • the pressure atomizer nozzle has an outlet side Has diameter of the nozzle outlet bore, which is smaller than that Diameter of the feed hole, in particular it should be approximately 0.7 times the Diameter of the feed hole. This will make a bigger part of the total pressure drop across the outlet opening, resulting in a high Stability of the full jet leads.
  • an embodiment variant is advantageous in which the nozzle outlet bore is arranged in the cover of a first tube, in which a second tube smaller outer diameter is used, up to the said lid is sufficient, and at least one slot in the cover-side end of the second tube is provided, which is made tangential and forms a swirl channel and which is the annulus between the first and second tubes with the chamber connects from which the nozzle outlet bore leads into the outside space, the chamber being essentially through the lid, the inner walls of the second Pipe and a filler in the second pipe is limited, and the feed hole arranged in the filler on the same axis as the nozzle outlet bore is.
  • This nozzle is characterized by a simple design.
  • a pressure atomizing nozzle according to the invention is advantageously used, whose nozzle outlet bore is constant over its entire length Has cross-sectional area. This is very easy to manufacture.
  • the nozzle outlet bore over their entire length in the direction of flow has a continuously decreasing cross-sectional area, so as a result of the converging Partly advantageous in the swirl stage, a uniform acceleration of the liquid to be atomized.
  • the friction losses are less than in a variant in which a nozzle with a constant cross section of the Nozzle outlet bore is provided.
  • the pressure atomizing nozzle according to the invention has a Nozzle outlet bore, which has an inlet radius at its inlet end has at least as large as the radius of the mixing chamber. This prevents the flow from detaching at the inlet into the outlet bore and thereby loss of flow or at high speeds possible cavitation prevented.
  • FIGS. 1 to 3 show a first embodiment of the invention, with Fig. 1 the Pressure atomizer nozzle in a partial longitudinal section and FIGS. 2 and 3 two Show cross sections in different planes.
  • the pressure atomizing nozzle comprises a nozzle body 30, consisting of a first tube 31, which is closed at its end seen in the direction of flow by a conical cover 32. In the middle of the cover 32 there is a nozzle bore 33, the longitudinal axis of which is designated 34. According to the invention, the length of the nozzle outlet bore is at least 2 to a maximum of 10 times the outlet-side diameter of the nozzle outlet bore.
  • a second tube 35 which has a smaller outside diameter than the inside diameter of the first tube 31, is inserted into the tube 31 and extends as far as the cover 32 and rests thereon.
  • the annular space 36 between the two tubes 31 and 35 serves to supply the or a part of the liquid 37 to be atomized.
  • the end of the tube 35 resting on the cover 32 is provided with four tangentially arranged slots 38 which connect the annular space 36 to produce a chamber 39 which serves as a swirl chamber for the liquid 37 to be atomized flowing through the slots 38.
  • the chamber 39 is delimited by the inner walls of the cover 32 and the second tube 35, and by a filler 40 which is inserted in the interior of the second tube 35 and fastened therein. This filler 40 is located at the same height as the upper edge of the slots 38, but it can also be spaced from the upper edge of the slots 38 in another embodiment variant, not shown.
  • the feed bore 41 for the liquid 37 to be atomized or for a second liquid to be atomized, which enable a swirl-free inflow of the liquid from the feed channel 42 into the chamber 39.
  • the feed bore 41 lies on the same axis 34 with the nozzle outlet bore 33.
  • the feed bore 41 has a constant diameter d z over its entire length L. This diameter d z is dimensioned somewhat larger than the diameter d a of the nozzle outlet bore 33.
  • the ratio of d a to d z should preferably be about 0.7. Then a good stability of the full jet is achieved when the nozzle is operated in the full jet stage, because a larger part of the total pressure drop occurs via the nozzle outlet bore.
  • the ratio of length L to the outlet-side diameter d a of the nozzle outlet bore 33 is also of particular importance for the function of the nozzle. According to the invention, it is in a range from 2 to 10. If the length-to-diameter ratio is too high, the twist becomes degraded too much from the swirl stage and the atomization in the pressure atomizer operation is insufficient. If the ratio of the length to the diameter of the nozzle outlet bore 33 is too small, on the other hand, the full jet has too great a divergence, which can lead to undesired discharge of drops.
  • the pressure atomizing nozzle according to the invention thus has two stages - one Full jet stage (see Fig. 2) and a pressure swirl stage (see Fig. 3), depending on the requirements can be operated either together or individually.
  • the pressure atomizing nozzle also be provided with more or fewer slots 3 &.
  • slots 38 There is also one other distribution of the channels over the circumference possible.
  • Other swirl generators for example blades, can also be arranged in the channel 36 be that ensure that the liquid to be atomized comes out of the channel 36 swirls into the chamber 39 enters.
  • Fig. 4 shows a partial longitudinal section of a second embodiment of an inventive two-stage pressure atomizer nozzle with full jet stage and swirl stage.
  • the structure of the nozzle differs from the embodiment described above only in that the nozzle outlet bore 33 does not have a constant Has diameter, but that the diameter seen in the direction of flow over the entire length L of the nozzle outlet bore to the actual one Exit steadily decreases.
  • This has compared to the first embodiment the additional advantages that a smooth acceleration of the liquid flow takes place in the nozzle that the friction losses in the swirl stage be reduced so that no turbulence occurs in the full jet stage or possibly existing ones are broken down and that the atomization of the liquid is suppressed becomes.
  • FIG. 5 shows in a partial longitudinal section a third exemplary embodiment of a two-stage pressure atomizer nozzle according to the invention with a full jet stage and a swirl stage.
  • the structure of the nozzle differs from the first exemplary embodiment described above only in that here too the nozzle outlet bore 33 does not have a constant diameter.
  • the nozzle outlet bore has an inlet radius R e which should be approximately as large as the radius R k of the chamber 39.
  • R e which should be approximately as large as the radius R k of the chamber 39.
  • the nozzle according to the invention can, for example, be swirl-stabilized Gas turbine or boiler burners, e.g. a burner of the double cone type, installed and to the requirements of the respective burner flow field or Operating conditions of the gas turbine combustion chamber or the boiler adapted if necessary, also during operation.
  • the nozzle is operated via the pressure swirl stage, by the liquid 37, in this case fuel, via the feed channel 36 and the swirl channel 38 (or via a swirl generator arranged in the channel 36) below high pressure and swirl enters the chamber 39 and through the nozzle outlet bore 33 is injected into the combustion chamber as a finely atomized drop.
  • the rotating movement causes a hollow cone flow at the nozzle bore 33 generated.
  • Both stages can be operated simultaneously, then takes place in the chamber 39 a mixture of the two fuel flows instead.
  • the nozzle can also be in only one Stage operated.
  • As extremely small as possible at full load and overload Spray angle should be set, for example, only the full jet level used, and the fuel mass flow flowing through the swirl channels 38 is completely switched off It is also possible, depending on the load range different liquids, e.g. Water and oil, through channels 36, 38 and 42, 41 to feed the chamber 39 and atomize after their mixing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Nozzles (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)

Claims (10)

  1. Gicleur de pulvérisation sous pression, comprenant un corps de gicleur (30) dans lequel est formée une chambre de mélange (39) qui communique par un alésage de sortie du gicleur (33) avec un espace extérieur et qui présente un premier canal d'amenée (42) doté d'un alésage d'amenée (41) pour un liquide (37) à pulvériser, et par lequel ledit liquide (37) peut être amené sous pression et sans tourbillon, au moins un deuxième canal d'amenée (36) pour une partie du liquide (37) à pulvériser ou pour un deuxième liquide (37') à pulvériser débouchant dans la chambre (39), le liquide (37) ou le deuxième liquide (37') pouvant être amenés sous pression et avec tourbillonnage par ladite partie, l'alésage d'amenée (41) du premier canal d'amenée (42) étant situé sur le même axe (34) que celui de l'alésage (33) de sortie du gicleur, caractérisé en ce que
    a) le diamètre de sortie (da) de l'alésage (33) de sortie du gicleur est au plus aussi grand que le diamètre (dz) de l'alésage d'amenée (41), et
    b) la longueur (L) de l'alésage (33) de sortie du gicleur correspond au moins à 2 fois et au plus à 10 fois le diamètre de sortie (da) de l'alésage (33) de sortie du gicleur.
  2. Gicleur de pulvérisation sous pression selon la revendication 1, caractérisé en ce que le diamètre (da) de sortie de l'alésage (33) de sortie du gicleur correspond environ à 0,7 fois le diamètre (dz) de l'alésage d'amenée (41).
  3. Gicleur de pulvérisation sous pression selon la revendication 1 ou 2, caractérisé en ce que l'alésage (33) de sortie du gicleur est disposé dans le couvercle (32) d'un premier tube (31) dans lequel est inséré un deuxième tube (35) de plus petit diamètre qui s'étend jusqu'audit couvercle (32), tandis que dans l'extrémité du deuxième tube (35) située du côté du couvercle est prévue au moins une fente (38) qui est disposée tangentiellement et forme un canal de tourbillonnage et qui relie l'espace annulaire (36) situé entre le premier tube (31) et le deuxième tube (35) à la chambre (39) de laquelle l'alésage (33) de sortie du gicleur conduit à la chambre extérieure, la chambre (39) étant délimitée essentiellement par le couvercle (32), par les parois intérieures du deuxième tube (35) et par une pièce de remplissage (40) placée dans le deuxième tube (35), l'alésage d'amenée (41) ménagé dans la pièce de remplissage (40) étant disposé sur le même axe (34) que l'alésage (33) de sortie du gicleur.
  4. Gicleur de pulvérisation sous pression selon l'une des revendications 1 à 3, caractérisé en ce que l'alésage (33) de sortie du gicleur présente une section transversale de surface constante sur toute sa longueur (L).
  5. Gicleur de pulvérisation sous pression selon l'une des revendications 1 à 3, caractérisé en ce que l'alésage (33) de sortie du gicleur présente une section transversale dont la surface diminue de manière constante dans la direction d'écoulement sur l'ensemble de sa longueur (L).
  6. Gicleur de pulvérisation sous pression selon l'une des revendications 1 à 3, caractérisé en ce que l'alésage (33) de sortie du gicleur présente sur son extrémité située du côté de l'entrée un rayon d'entrée (Ra) qui est au moins aussi grand que le rayon (Rk) de la chambre (39).
  7. Procédé d'utilisation d'un gicleur de pulvérisation sous pression selon l'une des revendications 1 à 6 dans un brûleur à tourbillon stabilisé, dans lequel, lors de l'allumage et en fonctionnement à charge partielle, le gicleur est utilisé dans un étage de tourbillonnage sous pression en apportant une partie du liquide (37) à pulvériser ou une partie du liquide (37') à pulvériser, par l'intermédiaire du canal d'amenée (38) et sous tourbillon, dans la chambre (39) dans laquelle est créé un écoulement fortement tourbillonnaire qui se rend ensuite dans l'espace extérieur par l'alésage (33) de sortie du gicleur, la partie du liquide (37, 37') apportée par l'étage de tourbillonnage diminuant lorsque l'écoulement massique global de liquide augmente, caractérisé en ce qu'en fonctionnement à pleine charge ou en surcharge, le gicleur est utilisé dans un étage à jet plein en apportant le liquide (37) par l'alésage d'amenée (41) dans la chambre (39) pour de là l'amener dans la chambre extérieure sous la forme d'un jet plein par l'alésage (33) de sortie du gicleur.
  8. Procédé selon la revendication 7, caractérisé en ce que l'on passe de manière continue entre les deux étages.
  9. Procédé selon la revendication 7, caractérisé en ce que les deux étages peuvent être utilisés simultanément et à des débits variables.
  10. Procédé selon la revendication 7, caractérisé en ce que l'on utilise un seul des deux étages.
EP98810650A 1997-07-17 1998-07-08 Buse de pulvérisation par pression Expired - Lifetime EP0892212B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19730617A DE19730617A1 (de) 1997-07-17 1997-07-17 Druckzerstäuberdüse
DE19730617 1997-07-17

Publications (3)

Publication Number Publication Date
EP0892212A2 EP0892212A2 (fr) 1999-01-20
EP0892212A3 EP0892212A3 (fr) 1999-02-10
EP0892212B1 true EP0892212B1 (fr) 2003-04-09

Family

ID=7835979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810650A Expired - Lifetime EP0892212B1 (fr) 1997-07-17 1998-07-08 Buse de pulvérisation par pression

Country Status (4)

Country Link
US (1) US6045058A (fr)
EP (1) EP0892212B1 (fr)
JP (1) JP4049893B2 (fr)
DE (2) DE19730617A1 (fr)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2772118B1 (fr) * 1997-12-05 2001-08-17 Saint Gobain Vitrage Procede de combustion et bruleur a pulverisation de combustible mettant en oeuvre un tel procede
MXPA02012719A (es) * 2000-07-06 2003-04-25 Lancer Partnership Ltd Metodo y aparato para tratamiento de fluidos.
DE10231218A1 (de) 2002-07-11 2004-01-29 Alstom (Switzerland) Ltd. Zerstäubungseinrichtung und Verfahren zur Erzeugung eines Flüssigkeit-Gas Gemisches
US6863230B2 (en) 2002-11-12 2005-03-08 Nathan Palestrant Atomizing nozzle and method for manufacture thereof
US7140558B2 (en) * 2003-03-24 2006-11-28 Irene Base, legal representative Mixing arrangement for atomizing nozzle in multi-phase flow
US7273187B2 (en) * 2003-09-01 2007-09-25 Danfoss A/S Nozzle for air-assisted atomization of a liquid fuel
DE10348237A1 (de) * 2003-10-16 2005-05-19 Pari GmbH Spezialisten für effektive Inhalation Inhalationstherapievorrichtung mit einem Düsenvernebler
EP1802915B1 (fr) 2004-10-18 2016-11-30 General Electric Technology GmbH Bruleur pour turbine a gaz
WO2006084085A1 (fr) * 2005-02-04 2006-08-10 Ismailov Murad M Systeme de pulverisation de liquide et buse de pulverisation amelioree
FI20055394A0 (fi) * 2005-07-07 2005-07-07 Metso Automation Oy Paperirainan kostutussuutin
US7643753B2 (en) * 2005-09-29 2010-01-05 Broadlight Ltd. Enhanced passive optical network (PON) processor
JP2007155170A (ja) * 2005-12-02 2007-06-21 Hitachi Ltd 燃料ノズル，ガスタービン燃焼器，ガスタービン燃焼器の燃料ノズル及びガスタービン燃焼器の改造方法
US7677236B2 (en) * 2006-05-17 2010-03-16 David Deng Heater configured to operate with a first or second fuel
US7607426B2 (en) 2006-05-17 2009-10-27 David Deng Dual fuel heater
US7434447B2 (en) * 2006-05-17 2008-10-14 David Deng Oxygen depletion sensor
US8241034B2 (en) 2007-03-14 2012-08-14 Continental Appliances Inc. Fuel selection valve assemblies
US8152515B2 (en) 2007-03-15 2012-04-10 Continental Appliances Inc Fuel selectable heating devices
US20080227041A1 (en) * 2007-03-14 2008-09-18 Kirchner Kirk J Log sets and lighting devices therefor
US8011920B2 (en) 2006-12-22 2011-09-06 David Deng Valve assemblies for heating devices
JP2008031847A (ja) * 2006-07-26 2008-02-14 Hitachi Ltd ガスタービン燃焼器とその運転方法、及びガスタービン燃焼器の改造方法
US8545216B2 (en) 2006-12-22 2013-10-01 Continental Appliances, Inc. Valve assemblies for heating devices
US7654820B2 (en) 2006-12-22 2010-02-02 David Deng Control valves for heaters and fireplace devices
US8057219B1 (en) 2007-03-09 2011-11-15 Coprecitec, S.L. Dual fuel vent free gas heater
US8118590B1 (en) 2007-03-09 2012-02-21 Coprecitec, S.L. Dual fuel vent free gas heater
US7766006B1 (en) * 2007-03-09 2010-08-03 Coprecitec, S.L. Dual fuel vent free gas heater
US8403661B2 (en) 2007-03-09 2013-03-26 Coprecitec, S.L. Dual fuel heater
US8523805B2 (en) 2008-10-29 2013-09-03 Biomet Biologics, Llc Method and apparatus for containing, transporting, and providing a material
US8465277B2 (en) * 2009-06-29 2013-06-18 David Deng Heat engine with nozzle
US20110031328A1 (en) * 2009-08-06 2011-02-10 Greg Rundle Nozzle apparatus for dispersing droplets of flowable material
US9829195B2 (en) * 2009-12-14 2017-11-28 David Deng Dual fuel heating source with nozzle
US10073071B2 (en) 2010-06-07 2018-09-11 David Deng Heating system
EP2584258A3 (fr) 2010-06-07 2013-06-12 David Deng Système de chauffage
CN101922569B (zh) * 2010-07-13 2013-04-17 汤炳生 全能分控低碳水嘴
US8899971B2 (en) 2010-08-20 2014-12-02 Coprecitec, S.L. Dual fuel gas heater
US10222057B2 (en) 2011-04-08 2019-03-05 David Deng Dual fuel heater with selector valve
US9739389B2 (en) 2011-04-08 2017-08-22 David Deng Heating system
US8985094B2 (en) 2011-04-08 2015-03-24 David Deng Heating system
US8945666B2 (en) 2011-05-26 2015-02-03 Georgia-Pacific Wood Products Llc Systems and methods for adjusting moisture concentration of a veneer
CN102506198B (zh) 2011-10-20 2013-05-22 南京普鲁卡姆电器有限公司 双气源燃气自适应主控阀
DE102012019951B4 (de) * 2012-10-11 2025-08-14 Man Energy Solutions Se Abgasnachbehandlungssystem für eine Brennkraftmaschine
EP2915588B1 (fr) * 2012-11-05 2020-08-26 Toshiba Mitsubishi-Electric Industrial Systems Corporation Appareil de formation de film
WO2014133639A1 (fr) 2013-02-28 2014-09-04 United Technologies Corporation Gicleur d'injecteur de carburant à turbulence variable
US9518732B2 (en) 2013-03-02 2016-12-13 David Deng Heating assembly
US9752779B2 (en) 2013-03-02 2017-09-05 David Deng Heating assembly
US9234445B2 (en) * 2013-06-06 2016-01-12 Cummins Emission Solutions Inc. Systems and techniques for nozzle cooling of diesel exhaust fluid injection systems
FI20135903A7 (fi) * 2013-09-09 2015-03-10 Beneq Oy Laite ja menetelmä aerosolin valmistamiseksi ja kohdistinosa
US10429074B2 (en) 2014-05-16 2019-10-01 David Deng Dual fuel heating assembly with selector switch
US10240789B2 (en) 2014-05-16 2019-03-26 David Deng Dual fuel heating assembly with reset switch
EP3088802A1 (fr) * 2015-04-29 2016-11-02 General Electric Technology GmbH Buse pour un lobe de combustion de turbine a gaz
JP6804755B2 (ja) * 2015-11-26 2020-12-23 ウエムラ技研株式会社 渦巻型噴射ノズル
CN108636625B (zh) 2018-03-13 2021-09-14 因诺弥斯特有限责任公司 多模式流体喷嘴
EP3593907B1 (fr) * 2018-07-13 2021-05-19 Elysion Family Office GmbH Buse pour nano-aérosol
CN112474093B (zh) * 2020-11-23 2022-07-15 中国科学技术大学 一种基于复合流协同的射流增程方法及装置
WO2023076149A1 (fr) * 2021-10-29 2023-05-04 Micronic Technologies, Inc. Atomiseur destiné à être utilisé dans le traitement de l'eau et son procédé d'utilisation
CN115013204A (zh) * 2022-06-20 2022-09-06 江苏大学 一种双燃料涡流喷嘴
CN117646917A (zh) * 2023-12-07 2024-03-05 中国航天空气动力技术研究院 一种飞行器雾化喷燃装置及喷燃方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503481A (en) * 1946-12-04 1950-04-11 William W Hallinan Atomizing nozzle
DE808722C (de) * 1948-10-02 1951-07-19 Deisting & Co G M B H Dr Kontaktklemme
US3053462A (en) * 1961-08-07 1962-09-11 Monarch Mfg Works Inc Constant capacity nozzle
DE1808722A1 (de) * 1968-11-13 1970-06-04 Nat Res Dev Duese
IT1004458B (it) * 1973-04-10 1976-07-10 Lucas Aerospace Ltd Dispositivo di nebulizzazione di combustibile per motori a turbina a gas
DE2733102A1 (de) * 1977-07-22 1979-02-01 Bayer Ag Verfahren und vorrichtung zum zerstaeuben von fluessigkeiten
IL63171A0 (en) * 1980-11-25 1981-09-13 Gen Electric Fuel nozzle for a gas turbine engine
DE3477141D1 (en) * 1983-08-15 1989-04-20 Gmt Sa A method of cleaning industrial components and a jet assembly for use therein
CH674561A5 (fr) 1987-12-21 1990-06-15 Bbc Brown Boveri & Cie
DE3811261A1 (de) * 1988-04-02 1989-10-19 Thomae Gmbh Dr K Vorrichtungen zur gesteuerten freisetzung dosierter mengen von in gasen feinverteilten fluessigkeiten
US4970865A (en) * 1988-12-12 1990-11-20 Sundstrand Corporation Spray nozzle
DE59105449D1 (de) * 1991-01-23 1995-06-14 Asea Brown Boveri Hochdruckzerstäubungsdüse.
DE4118538C2 (de) * 1991-06-06 1994-04-28 Maurer Friedrich Soehne Zweistoffdüse
DE4137136A1 (de) * 1991-11-12 1993-05-13 Graf Rolf Dr Ing Duese zum zerstaeuben von fluessigkeiten
US5365738A (en) * 1991-12-26 1994-11-22 Solar Turbines Incorporated Low emission combustion nozzle for use with a gas turbine engine
DE4212360A1 (de) * 1992-04-13 1993-10-14 Babcock Energie Umwelt Brennerlanze zum Zerstäuben einer Kohle-Wasser-Suspension
DE4326802A1 (de) * 1993-08-10 1995-02-16 Abb Management Ag Brennstofflanze für flüssige und/oder gasförmige Brennstoffe sowie Verfahren zu deren Betrieb
DE19510744A1 (de) * 1995-03-24 1996-09-26 Abb Management Ag Brennkammer mit Zweistufenverbrennung
DE19608349A1 (de) * 1996-03-05 1997-09-11 Abb Research Ltd Druckzerstäuberdüse
US5845716A (en) * 1997-10-08 1998-12-08 The United States Of America As Represented By The Secretary Of The Army Method and apparatus for dispensing liquid with gas

Also Published As

Publication number Publication date
JPH1172205A (ja) 1999-03-16
DE19730617A1 (de) 1999-01-21
DE59807805D1 (de) 2003-05-15
EP0892212A3 (fr) 1999-02-10
US6045058A (en) 2000-04-04
EP0892212A2 (fr) 1999-01-20
JP4049893B2 (ja) 2008-02-20

Similar Documents

Publication Publication Date Title
EP0892212B1 (fr) Buse de pulvérisation par pression
EP0794383B1 (fr) Méthode d'exploitation d'une buse de pulvérisation par pression
EP0902233B1 (fr) Buse de pulvérisation par pression combinée
EP0911583B1 (fr) Procédé de mise en oeuvre d'un brûleur à prémélange
EP0769655B1 (fr) Buse de pulvérisation par air comprimé
EP0321809B1 (fr) Procédé pour la combustion de combustible liquide dans un brûleur
DE69718253T2 (de) Vorrichtung zur Einspritzung von mit Luft zerstäubten Einzelstrahlen aus flüssigem Brennstoff
DE3518080C2 (fr)
CH680467A5 (fr)
EP0924460B1 (fr) Buse de pulvérisation par pression à deux étages
CH682952A5 (de) Brenner für eine Vormischverbrennung eines flüssigen und/oder gasförmigen Brennstoffes.
EP0711953B1 (fr) Brûleur à prémélange
WO2006042796A2 (fr) Bruleur pour turbine a gaz
EP0394800B1 (fr) Brûleur à mélange préalable pour la génération de gaz chaud
EP0816759B1 (fr) Brûleur à prémélange et procédé de mise en oeuvre du brûleur
EP0924461B1 (fr) Buse de pulvérisation par pression à deux étages
EP0742411B1 (fr) Alimentation en air pour une chambre de combustion à prémélange
EP0911582B1 (fr) Procédé d'utilisation d'un brûleur à prémélange et brûleur à prémélange
EP0483554B1 (fr) Procédé pour la réduction au minimum des émissions de NOx dans une combustion
EP0496016B1 (fr) Buse de pulvérisation haute-pression
DE69423900T2 (de) V-jet atomisateur
DE2428622A1 (de) Brennerkopf, insbesondere fuer gasfoermige brennstoffe
DE2552864A1 (de) Verfahren und brenner zum verbrennen von fluessigen brennstoffen
EP0807787A2 (fr) Brûleur
DE19505614A1 (de) Verfahren zum Betrieb eines Vormischbrenners

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990527

AKX Designation fees paid

Free format text: DE FR GB

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VALK, MARTIN, DR.

Inventor name: STEINBACH, CHRISTIAN, DR.

Inventor name: DOEBBELING, KLAUS, DR.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALSTOM

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALSTOM (SWITZERLAND) LTD

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040112

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59807805

Country of ref document: DE

Representative=s name: UWE ROESLER, DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20120802 AND 20120808

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59807805

Country of ref document: DE

Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE

Effective date: 20120713

Ref country code: DE

Ref legal event code: R081

Ref document number: 59807805

Country of ref document: DE

Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH

Free format text: FORMER OWNER: ALSTOM (SWITZERLAND) LTD., BADEN, CH

Effective date: 20120713

Ref country code: DE

Ref legal event code: R081

Ref document number: 59807805

Country of ref document: DE

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

Free format text: FORMER OWNER: ALSTOM (SWITZERLAND) LTD., BADEN, CH

Effective date: 20120713

Ref country code: DE

Ref legal event code: R081

Ref document number: 59807805

Country of ref document: DE

Owner name: ALSTOM TECHNOLOGY LTD., CH

Free format text: FORMER OWNER: ALSTOM (SWITZERLAND) LTD., BADEN, CH

Effective date: 20120713

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: ALSTOM TECHNOLOGY LTD., CH

Effective date: 20120918

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59807805

Country of ref document: DE

Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 59807805

Country of ref document: DE

Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

Ref country code: DE

Ref legal event code: R081

Ref document number: 59807805

Country of ref document: DE

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: ALSTOM TECHNOLOGY LTD, CH

Effective date: 20161110

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20170824 AND 20170830

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH

Effective date: 20170914

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59807805

Country of ref document: DE

Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 59807805

Country of ref document: DE

Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH

Free format text: FORMER OWNER: GENERAL ELECTRIC TECHNOLOGY GMBH, BADEN, CH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170724

Year of fee payment: 20

Ref country code: GB

Payment date: 20170719

Year of fee payment: 20

Ref country code: DE

Payment date: 20170724

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59807805

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20180707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20180707