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EP0924460A1 - Buse de pulvérisation par pression à deux étages - Google Patents

Buse de pulvérisation par pression à deux étages Download PDF

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Publication number
EP0924460A1
EP0924460A1 EP97811007A EP97811007A EP0924460A1 EP 0924460 A1 EP0924460 A1 EP 0924460A1 EP 97811007 A EP97811007 A EP 97811007A EP 97811007 A EP97811007 A EP 97811007A EP 0924460 A1 EP0924460 A1 EP 0924460A1
Authority
EP
European Patent Office
Prior art keywords
turbulence
swirl
atomizing nozzle
stage pressure
channel
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
EP97811007A
Other languages
German (de)
English (en)
Other versions
EP0924460B1 (fr
Inventor
Peter Dr. Jansohn
Christian Dr. Steinbach
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
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to EP19970811007 priority Critical patent/EP0924460B1/fr
Priority to DE59709924T priority patent/DE59709924D1/de
Publication of EP0924460A1 publication Critical patent/EP0924460A1/fr
Application granted granted Critical
Publication of EP0924460B1 publication Critical patent/EP0924460B1/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
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
    • F23D11/26—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed
    • 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
    • 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
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • 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
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • 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
    • F23D11/38—Nozzles; Cleaning devices therefor
    • F23D11/383—Nozzles; Cleaning devices therefor with swirl means
    • 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
    • F23D11/402—Mixing chambers downstream of the nozzle
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2204/00—Burners adapted for simultaneous or alternative combustion having more than one fuel supply

Definitions

  • the invention relates to a two-stage pressure atomizing nozzle according to the preamble of claim 1, which for example in the premix burners of a gas turbine plant is used.
  • EP 0 794 383 A2 has a two-stage pressure atomizing nozzle, which is a Adjustment of the drop spray with regard to the atomization quality, the drop size and the spray angle to the respective load conditions.
  • the nozzle is characterized by a simple, little space requirement Type out.
  • the pressure atomizer nozzle has at least a first channel for the liquid to be atomized, through which the latter can be fed under pressure. Opens into the turbulence and / or swirl chamber at least one further channel for part of the liquid to be atomized or for a second liquid to be atomized, through which said part of the Liquid or the second liquid can be supplied under pressure and with swirl.
  • swirl nozzles In order to inject the fuel droplets into the outer areas of the To produce burners, swirl nozzles with large jet angles are often used. Such a swirl nozzle injects in the right direction, but it does the small droplets it produces do not have sufficient momentum to the liquid fuel before it is evaporated or before it is influenced by to transport the air to the outer areas of the burner. Because of the large scatter in the initial distribution of droplet sizes on the other hand, large drops get into the outer areas. These drops However, they are not vaporized and can ultimately reach the burner walls hit, with the risk of the flame striking back in the wall Flow areas.
  • the invention tries to avoid all of these disadvantages. You have the task based on a relatively simple and inexpensive two-stage pressure atomizing nozzle for at least one liquid to be atomized, with which one improved liquid distribution in the outer space of the pressure atomizing nozzle, in particular better fuel distribution in a premix burner can be.
  • each sub-chamber via at least one turbulence generator channel with the first feed channel, via at least one swirl duct with the second feed duct and via an outlet opening connected to the outside space.
  • the outlet openings which is only a part of the total liquid mass flow can be made smaller than with a nozzle only one outlet opening is possible. Generate with the same liquid mass flow smaller outlet openings but a much thinner jet of liquid, resulting in smaller droplets with a lower entry depth in the swirl stage to be produced. That is why the application range of the pressure atomizer nozzle advantageously also shifted towards part-load operation.
  • the deflecting body is particularly advantageous at least on the second closure element attached. Such training facilitates the manufacture of the pressure atomizing nozzle in that the second closure element together with the deflecting body can be mounted.
  • the deflecting body is located at least on the second closure element of the turbulence and / or swirl chamber and has a press fit to the inner tube. This can also simple manufacture of the pressure atomizing nozzle and a defined position of the Partial chambers can be realized.
  • Another advantageous variant for the arrangement of the deflecting body is that one of the number of sub-chambers between the deflecting body and the inner tube corresponding and connecting the latter in their outer area Number of free spaces is formed and the deflecting body also at least abuts the second closure element of the turbulence and / or swirl chamber. On this way it occurs in each of the free spaces, i.e. in the radially outer area of the sub-chambers, to a parallel and rectified course of the liquid flows neighboring subchambers.
  • this arrangement variant is also a simple and therefore inexpensive assembly of the pressure atomizer nozzle is guaranteed.
  • the turbulence and / or swirl chamber through the Deflection body is divided into four sub-chambers, the deflection body with an inner, at least approximately centrally arranged and on the connecting channel of the second closure element connecting distribution channel and this distribution channel via each of the turbulence channels with each the subchambers is connected.
  • the second in the inner tube Feed channel connected swirl channels formed and each eccentrically into a of the sub-chambers arranged in the mouth.
  • this Wise With constant atomization of the liquid, becomes a narrower one Spray angle of the four resulting liquid sprays realized.
  • the The depth of penetration of the liquid spray increases and thereby a good radial Distribution of the liquid can be achieved.
  • the four are introduced into the subchambers via the swirl channels Partial flows of the liquid to be atomized into a directed swirl flow converted.
  • This alignment also described above the swirl flow is caused by the eccentric injection of the partial flows into the Partial chambers reinforced.
  • the directional swirl flow also settles downstream of the outlet openings so that even with low liquid flow a sufficiently high pressure drop for atomization through these outlet openings is available. Because of the relatively wide spray cone in the swirl stage the spray has a lower impulse current density and thus a lower penetration depth. This can result in a high liquid concentration in the center even at partial load the outside of the nozzle and sufficient liquid evaporation be achieved. This enables stable nozzle operation in the partial load range.
  • Both the turbulence generator channels and the swirl channels are advantageous in arranged upstream of the upstream region of the partial chambers. Because of this is an early injection of the liquid into the sub-chambers reached, so that in the turbulence stage a strongly swirled flow and in the swirl stage can form a directional swirl flow.
  • the deflecting body is in cross section star-shaped. This creates a streamlined geometry Partial chambers generated, which for a good deflection of the eccentrically entering Liquid and thus for an improvement of the already described above, directional swirl flow.
  • the deflecting body is in cross section double ax-shaped, with two first bars and two at right angles to it arranged, second webs formed.
  • the first two webs run each sickle-shaped, while the two second webs at least approximately each have parallel sides.
  • Two of the swirl channels are at least approximately parallel to each other, one of the two second webs on both sides arranged opening into the subchambers. In this way, a changed one arises Geometry of the subchambers with further improved deflection properties for the swirl flow.
  • the pressure atomizing nozzle is advantageously used with a premix burner connected that the outside of the pressure atomizing nozzle at the same time is an interior of the premix burner.
  • the premix burner in the essentially of four hollow ones positioned one on top of the other in the direction of flow.
  • Partial cone bodies with a constant cone half angle ⁇ in the direction of flow are radially offset from one another, so that there are four opposite, tangential air inlet slots are designed for a combustion air flow.
  • Each partial cone body has a wake area downstream.
  • the outlet openings each aligned to the trailing area of the adjacent partial cone body are.
  • the fuel mass flow is over the sub-chambers divided into four equal sub-streams. Because the subchambers each have a smaller outlet opening than that with only one turbulence and / or Swirl chamber with a single outlet opening can be realized thus thinner fuel sprays are generated. As a result, smaller ones emerge Fuel droplets, which have a lower penetration depth into the interior of the burner and much faster, i.e. before hitting the inside wall of the Partial cone body, evaporate. Due to the alignment of the outlet openings of the Partial chambers on the side of the partial cone body facing away from the combustion air flow the fuel droplets are exposed to lower aerodynamic forces and are therefore better mixed radially into the combustion air. Ultimately, this results in an even distribution of oil vapor at the burner outlet and thus enables improved combustion.
  • Such a pressure atomizing nozzle or the burner equipped with it can by simply regulating the fuel supply, i.e. by switching from turbulence operation to the swirl operation or to a mixed operation at the full load or Partial load requirements of a gas turbine can be adjusted.
  • the burner can be used throughout Load range of the gas turbine in premix mode. At full load are high Penetration depths of the fuel spray possible without causing problems under partial load e.g. comes through wall application of fuel drops. Because the deflector constantly flowed through by the fuel of the turbulence stage and thus cooled cooling of the swirl stage is not necessary during the switching process, so that a fast load change can also be realized. Because of the versatile Switching options between swirl-enhanced and turbulence-enhanced Spray is the solution for most machine and performance conditions applicable.
  • the two-stage pressure atomizer nozzle of the prior art shown in FIG Technology has a nozzle body 1 with two concentrically arranged to each other Pipes 2, 3 on the downstream of a conical cover, first closure element 4 to be closed to an outside space 5.
  • the inner tube 2 encloses a first feed channel 6, while between the outer tube 3 and the inner tube 2 a second feed channel 7 is formed is.
  • a turbulence and / or closes downstream of the first feed channel 6 Swirl chamber 8, which is directed outwards from the inner tube 2, downstream from the cover 4 and upstream of a second one designed as an insert of the inner tube 2 Closure element 9 is limited.
  • the turbulence and / or swirl chamber 8 stands with the first feed channel 6 via turbulence generator channels arranged in the insert 9 10, with the second feed channel 7 over several, the inner tube 2 penetrating swirl channels 11 and with the outer space 5 via one in the Longitudinal axis 12 of the nozzle body 1 arranged outlet opening 13 in connection.
  • the two-stage pressure atomizing nozzle or with it equipped burners by simply regulating the fuel supply, i.e. by Switch from turbulence mode to swirl mode or to mixed mode can be adapted to the full load or partial load requirements of a gas turbine.
  • the supply of liquid fuel as a liquid to be atomized 14 to Nozzle body 1 takes place in a manner known per se, via lines, not shown, as shown and described for example in EP 0 794 383 A2 is.
  • the liquid fuel 14 injected or introduced into the outer space 5 through the only outlet opening 13.
  • Figures 2 to 6 show a first embodiment of a pressure atomizing nozzle according to the invention. It is in the turbulence and / or Swirl chamber 8 is a separate one that divides them into four subchambers 15 of the same size Deflector 16 arranged centrally (Fig. 2).
  • the deflection body 16 is in the Cross-section formed in a star shape (Fig. 3). It is considered a separate component of the Turbulence and / or swirl chamber 8 is made and is due to the two closure elements 4, 9. Is between the deflection body 16 and the inner tube 2 a number of free spaces 17 corresponding to the number of subchambers 15 educated.
  • each sub-chamber 15 is upstream through the insert 9, downstream through the cover 4, radially outwards from the inner tube 2 and in its inner area limits the deflection body 16.
  • the free spaces 17 connect the subchambers 15 in their outer area with each other.
  • Each sub-chamber 15 is via a turbulence generator channel 18 with a centrally formed inside the deflecting body 16 Distribution channel 19 connected, which in turn via an in use 9th arranged connecting channel 20 communicates with the first feed channel 6 (Fig. 2).
  • each sub-chamber 15 is connected to the second via a swirl channel 11 Feed channel 7 connected, the swirl channels 11 each eccentrically in the open upstream of the partial chambers 15 (Fig. 3, Fig. 4).
  • each partial chamber 15 has an outlet opening arranged in the cover 4 13 to the outside 5 of the pressure atomizing nozzle. The outlet openings 13 are evenly distributed over the circumference of the cover 4 and on a common one Circumferential circle arranged.
  • the liquid fuel 14 arrives when the turbulence stage is operating via the first feed channel 6 and the connecting channel 20 in the Distribution channel 19. From there it is through the four turbulence generator channels 18 as a turbulent flow into the subchambers 15 where it is due from flow separations to strongly swirled flows with a uniform Liquid application of the subchambers 15 comes (Fig. 5). About the Outlet openings 13 are then injected with the liquid fuel 14 into the outside space 5, in the form of four separate fuel sprays 21.
  • Zum Achieve good atomization quality and a high penetration depth the injection pressure should be up to 100 bar.
  • the swirl stage is via the second feed channel 7 applied with the liquid fuel 14.
  • the latter first gets into the Swirl channels 11 and is divided from there to the subchambers 15.
  • the liquid fuel 14 is introduced into the upstream region of the partial chambers 15, so that due to the aerodynamic design the sub-chambers 15 and because of their eccentric flow a directed Imprints swirl flow, which also via the four outlet openings 13 in the outer space 5 of the pressure atomizing nozzle is introduced (FIG. 6).
  • the injection pressure should also reach atomization quality up to 100 bar.
  • the maximum mass flow achievable with the swirl stage is the same Injection pressure below that of the turbulence stage, but should not be less than 50% of the fuel flow at full load.
  • a second embodiment of the invention is the deflecting body 16 in cross section double ax-shaped, with two first webs 22 and formed with two second webs 23 arranged at right angles thereto.
  • the first two webs 22 each run out sickle-shaped, while the two second webs 23 each have at least approximately parallel sides 24.
  • each two of the swirl channels 11 at least approximately parallel to each other and in each case one of the two second webs 23 on both sides into the partial chambers 15 arranged at the mouth.
  • the deflection body 16 is in the Turbulence and / or swirl chamber 8 pressed, for which purpose between the first two Web 22 and the inner tube 2, a press fit 25 is formed.
  • the nozzle body 1 is also included connected to a premix burner 26 that the outer space 5 of the nozzle body 1 is at the same time an interior 5 'of the premix burner 26 (FIG. 9).
  • the premix burner 26 is a conical structure and essentially consists from four superposed conical bodies 28, 29, 30 31 with a constant cone half angle ⁇ to the burner axis in the direction of flow 27.
  • hollow cone-shaped interior 5 'of the premix burner 26 is the Nozzle body 1 arranged.
  • the nozzle body 1 a turbulence and / or swirl chamber 8, which by a deflecting body 16 is divided into four subchambers 15, each with an outlet opening 13.
  • the partial cone bodies 28, 29, 30, 31 each have a longitudinal axis of symmetry 28 ', 29', 30 ', 31'. The latter run radially offset from one another, so that four flow opposite, tangential air inlet slots 32 for a combustion air flow 33 are formed (Fig. 10).
  • the partial cone bodies have 28, 29, 30, 31 along the air inlet slots 32 each have a fuel feed line 34 on.
  • These fuel supply lines 34 are provided with openings 35 on the longitudinal side, through which a gaseous fuel 36 into the interior 5 'of the premix burner 26 can flow (Fig. 9). This fuel 36 is used when needed that introduced through the tangential air inlet slots 32 into the interior 5 ' Combustion air stream 33 mixed.
  • a mixed operation of the premix burner 26 via the pressure atomizing nozzle and the fuel supply lines 34 is possible.
  • each partial cone body 28, 29, 30, 31 inevitably has a trailing area 37, 38, 39, 40 trained in which there are significantly lower aerodynamic forces than in the adjacent areas of the interior 5 '.
  • Each of the four outlet openings 13 of the subchambers 15 is on the trailing area 37, 38, 39, 40 of the adjacent one Part cone body 28, 29, 30, 31 aligned.
  • the combustion air flow 33 and thus also at partial load its momentum is reduced, reducing the need for a lower mass flow of liquid fuel 14, a lower spray pulse and therefore a smaller one Fuel droplets. Therefore, the gas turbine is in this operating state the respective swirl stage of the pressure atomizing nozzles is acted upon more than the turbulence level. An increasing swirl ratio gradually and automatically reduces the mass flow of the liquid fuel 14. Because the swirl stage realizes a lower mass flow than the turbulence stage, the fuel pressure drops of the liquid fuel 14 accordingly. About an increase in droplet size and thus the impact of the fuel droplets on the inner walls of the burner To prevent a constant fuel pressure is required. On the other hand when the gas turbine load decreases, i.e. with further decreasing influence the combustion air flow 33, by the transition to an almost complete Swirl operation, a further reduction in the droplet size of the liquid fuel 14 reached.
  • the premix burner 26, according to EP 0 704 657 A2 can also consist of a swirl generator and a downstream mixing tube, wherein the swirl generator is essentially the premix burner described above 26 corresponds, or also a solution for double-cone burners i.e. can be realized for a premix burner with two partial cone bodies (not shown).
  • the premix burner cannot be conical and / or consist of a number of circularly arranged blades (likewise not shown).

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  • 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)
EP19970811007 1997-12-22 1997-12-22 Buse de pulvérisation par pression à deux étages Expired - Lifetime EP0924460B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19970811007 EP0924460B1 (fr) 1997-12-22 1997-12-22 Buse de pulvérisation par pression à deux étages
DE59709924T DE59709924D1 (de) 1997-12-22 1997-12-22 Zweistufige Druckzerstäuberdüse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970811007 EP0924460B1 (fr) 1997-12-22 1997-12-22 Buse de pulvérisation par pression à deux étages

Publications (2)

Publication Number Publication Date
EP0924460A1 true EP0924460A1 (fr) 1999-06-23
EP0924460B1 EP0924460B1 (fr) 2003-04-23

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Family Applications (1)

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EP19970811007 Expired - Lifetime EP0924460B1 (fr) 1997-12-22 1997-12-22 Buse de pulvérisation par pression à deux étages

Country Status (2)

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EP (1) EP0924460B1 (fr)
DE (1) DE59709924D1 (fr)

Cited By (18)

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US6755024B1 (en) * 2001-08-23 2004-06-29 Delavan Inc. Multiplex injector
FR2902350A1 (fr) * 2006-06-15 2007-12-21 Egci Pillard Sa Systeme d'injection de liquide reactif atomise pour la reduction d'oxydes d'azote de gaz de combustion
EP2108459A1 (fr) * 2008-04-08 2009-10-14 Alfons Kenter Buse pour pulvérisation d'un liquide
WO2009158565A2 (fr) 2008-06-25 2009-12-30 Battelle Memorial Institute Procédé de décontamination à base de microaérosol
CN102019236A (zh) * 2011-01-04 2011-04-20 北京航空航天大学 用于复杂流体雾化的自激振荡射流撞击式喷嘴
CN102161020A (zh) * 2011-03-28 2011-08-24 北京航空航天大学 具有锥形反射面谐振腔的自激振荡射流撞击式喷嘴
WO2012129719A1 (fr) * 2011-03-28 2012-10-04 北京航空航天大学 Buse d'impact à jet oscillant à excitation automatique ayant une cavité de résonance à surface réfléchissante conique
CN103406220A (zh) * 2013-08-29 2013-11-27 武汉奇斯科技有限公司 一种微米级液体雾化枪
CN103506233A (zh) * 2013-09-15 2014-01-15 中国科学院过程工程研究所 一种两级雾化的双流体喷射装置
WO2014133639A1 (fr) 2013-02-28 2014-09-04 United Technologies Corporation Gicleur d'injecteur de carburant à turbulence variable
US9156044B2 (en) 2008-06-25 2015-10-13 Battelle Memorial Institute Aerosol device
CN104596918B (zh) * 2015-01-20 2017-05-24 中国人民解放军装备学院 一种开放环境下多参数连续可调型射流撞击雾化试验装置
CN108480071A (zh) * 2018-04-27 2018-09-04 中国东方电气集团有限公司 一种脉动式雾化器
CN111249496B (zh) * 2020-03-18 2021-01-22 湖南翰坤实业有限公司 一种智能雾化消毒器
CN112916545A (zh) * 2021-01-20 2021-06-08 苏州雅达水工设备制造有限公司 一种用于水箱的全覆盖自动清洗消毒装置
CN113351392A (zh) * 2021-06-30 2021-09-07 蚌埠中瓷纳米科技有限公司 一种甲苯雾化装置
CN114688525A (zh) * 2020-12-31 2022-07-01 大连理工大学 一种喷嘴
DE102010017776B4 (de) 2009-07-13 2025-01-30 General Electric Technology Gmbh Magermischdirektinjektion für gestützte Vormischanwendungen

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* Cited by examiner, † Cited by third party
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EP2108459A1 (fr) * 2008-04-08 2009-10-14 Alfons Kenter Buse pour pulvérisation d'un liquide
CN102065907A (zh) * 2008-06-25 2011-05-18 巴特尔纪念研究院 基于微气溶胶的去污方法
WO2009158565A3 (fr) * 2008-06-25 2010-03-18 Battelle Memorial Institute Procédé de décontamination à base de microaérosol
CN102065907B (zh) * 2008-06-25 2015-07-29 巴特尔纪念研究院 基于微气溶胶的去污方法
US9156044B2 (en) 2008-06-25 2015-10-13 Battelle Memorial Institute Aerosol device
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DE102010017776B4 (de) 2009-07-13 2025-01-30 General Electric Technology Gmbh Magermischdirektinjektion für gestützte Vormischanwendungen
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