EP1016828B1 - Einspritzdüse für Brenner und entsprechendes Einspritzsystem - Google Patents

Einspritzdüse für Brenner und entsprechendes Einspritzsystem Download PDF

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Publication number
EP1016828B1
EP1016828B1 EP99402851A EP99402851A EP1016828B1 EP 1016828 B1 EP1016828 B1 EP 1016828B1 EP 99402851 A EP99402851 A EP 99402851A EP 99402851 A EP99402851 A EP 99402851A EP 1016828 B1 EP1016828 B1 EP 1016828B1
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EP
European Patent Office
Prior art keywords
fuel
injector
assembly
oxidizer
injection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP99402851A
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English (en)
French (fr)
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EP1016828A1 (de
Inventor
Dominique Robillard
Thierry Borissoff
Celso Zerbinatti
Dora Sophia Alves
Jacques Dugue
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP1016828A1 publication Critical patent/EP1016828A1/de
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Publication of EP1016828B1 publication Critical patent/EP1016828B1/de
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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
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/10—Liquid waste

Definitions

  • the present invention relates to injectors for burners having a longitudinal axis and applies in particular to processes production of clinker, a cement manufacturing intermediary.
  • Clinker is obtained by baking materials at high temperature quarries such as clay, limestone ...
  • the cooking installation successively comprises a precalcination device for preheating, dehydrate and decarbonate raw materials, for example a grid "Lepol”, and a rotary kiln in which the material flows and where the clinkérisation.
  • This rotary kiln delivers at the outlet of the clinker.
  • a main nozzle is located at the outlet of the rotary kiln. This nozzle brings the necessary heat energy into the rotary kiln.
  • the heat energy required for the operation of the precalcination device is mainly supplied by the fumes produced by the main nozzle, these fumes circulating in the rotary kiln against the current of the material. A additional energy is required at the precalcination device.
  • the main fuel consists of waste industrial liquids containing up to 30% by mass of water and fuel auxiliary consists of polluted industrial water.
  • fuel auxiliary consists of polluted industrial water.
  • the oxygen contained in the fumes present in the enclosure of the precalcination device constitutes the main oxidizer.
  • Oxygen make-up is introduced near the main fuel injector by through a third injector.
  • the main fuel is pulverized in the form of an upper layer
  • the auxiliary fuel is sprayed in the form of a lower layer spaced from the upper layer
  • make-up oxygen is injected in the form of an intermediate layer situated between the other two layers, near the upper layer.
  • the main and auxiliary fuels and the auxiliary oxidant are mix poorly due to their injection in parallel layers.
  • the entire injection system is bulky.
  • the invention aims to solve these problems by providing improved injectors, making it possible, in clinker production processes, improve the combustion efficiency of fuels with a small footprint.
  • the invention relates to an injector for a burner having a longitudinal axis, characterized in that it comprises an assembly injecting a main fuel with a fuel outlet main, an oxidizer injection assembly having an outlet for oxidizer, and an auxiliary fuel injection assembly having a auxiliary fuel outlet, and in that said injection sets of main and auxiliary fuels and oxidizer are coaxial and are arranged radially around each other and in that the fuel injection assembly (4) lower lower calorific value (PCI) is located radially outside the injector (1).
  • PCI lower lower calorific value
  • the invention also relates to a fuel injection system.
  • main and auxiliary and oxidizer including a fuel source main, a source of auxiliary fuel, a source of oxidizer, and at least one injector, characterized in that the injector is an injector as described above, and in that the fuel injection assemblies main and auxiliary and oxidizer of the injector are connected respectively sources of main and auxiliary fuels and oxidizers.
  • one or each fuel injection assembly is an assembly for spraying said fuel which comprises means for channeling of said fuel, means for channeling spray fluid, and spraying means connected to said channeling means said fuel and spray fluid, and the injection system includes in addition at least one source of spray fluid connected to said means for channeling the spray fluid of the or each set of fuel spraying.
  • the oxidant source can be a gas source comprising between 30 and 100% oxygen.
  • Figure 1 illustrates an injector 1 for a method of developing clinker semi-dry or dry.
  • This injector 1 of generally elongated axisymmetric shape with an axis X-X, essentially comprises an interior assembly 2 for injecting a fuel main liquid with high PCI, an intermediate set 3 of oxidant injection and an external assembly 4 for injecting an auxiliary liquid fuel to low PCI.
  • the sets 2, 3 and 4 are substantially axisymmetric and coaxial.
  • the exterior injection assembly 4 is disposed radially at the outside of the intermediate injection assembly 3 which is itself located radially outside the interior injection assembly 2.
  • the injection assembly 2 main fuel essentially comprises an inner pipe 5 main fuel, a spray head 6 which extends the tube 5 forward or downstream (to the left in Figures 1 and 2), and an outer tube 7 externally surrounding the tube 5.
  • the head 6 has an axial central bore 8 communicating with the interior of the tube 5 and a frustoconical external flange 9 pierced with six bores obliques 10, distributed regularly around the X-X axis. Bores 10 open into bore 8. These bores 10 are of axes inclined towards the front at the same angle with respect to the X-X axis. Removable tips 11 with orifices calibrated are introduced into the bores 10.
  • the head 6 also includes three pins 12 projecting radially outward and located axially rearward (to the right in Figures 1 and 2) relative to the collar 9. These pins 12 are regularly distributed angularly with respect to the X-X axis.
  • the front or downstream end of the tube 7 is supported, on the one hand, axially on the flange 9 and on the other hand, radially on the pawns 12. It should be noted that the support of the front end of the tube 7 on the collar 9 is done according to frustoconical surfaces inclined relative to the axis X-X which seals between the tube 7 and the collar 9.
  • This ring 13 ensures, with the flange 9 and the pins 12, the maintenance of the longitudinal position and from the centered radial position of the tube 5 relative to the tube 7.
  • a joint seal 131 is disposed between the ring 13 and an annular outer shoulder 132 of the tube 5. This shoulder 132 is located in front of the threaded section 130 from tube 5.
  • a transverse tubular connector 14 is disposed at the rear of the tube 7, slightly in front of the ring 13.
  • the tubes 5 and 7 delimit between them a passage 15 of pipe spray fluid which communicates at the front with the orifices of the nozzles 11, and therefore with the bore 8, and at the rear with the connector 14 thanks to a orifice 16 formed in the wall of the tube 7.
  • the inner tube 5 is extended towards the rear by a tubular connection longitudinal 17.
  • the intermediate oxidant injection assembly 3 essentially comprises ( Figures 1 and 3) a tube 20, extended forward by a head injection 21 and fitted at the rear with a clamping device 22.
  • the tube 20 is also provided with a transverse tubular connector 23 located slightly in front of the clamping device 22.
  • the injection head 21 has a central bore 24 communicating with the inside of the tube 20.
  • the bore 24 is of constant section except in one intermediate section 25 where its section converges forward.
  • Six axial grooves 26, of rectangular section and regularly angularly distributed around the X-X axis, are arranged in the thickness of head 21.
  • the grooves 26 are formed radially from the outside of the head 21 and open, on the one hand, into the front edge of the injection head 21 and, on the other hand, in an outer annular groove 27, of V-section and X-X axis, formed in the thickness of the head 21.
  • This outer annular groove 27 is located substantially at the same axial level as the intermediate section 25 of bore 24.
  • the head 21 is extended rearward by three internal legs 270 regularly spaced angularly from each other. These legs 270 are inserted inside the tube 20. These tabs 270, pressed against the wall of the tube 20, are crossed each by a transverse screw which ensures the joining of the head 21 and of the tube 20.
  • the support of the front end of the tube 20 on the head 21 is made according to frustoconical surfaces inclined with respect to the axis X-X which ensures the seal between the tube 20 and the head 21.
  • the clamping device 22 essentially comprises a tip 271 externally threaded and integral with the rear end of the tube 20, a nut 28 screwed onto the rear end of the end piece 271, a split elastic ring 29, a metal washer not shown, and an O-ring seal 30.
  • the O-ring 30 is supported on an inner rear shoulder 31 of the end piece 27.
  • the metal washer is placed between the O-ring 30 and the elastic ring split 29 which rests on a rear inner annular lip 32 of the nut 28 and the split elastic ring 29.
  • the main fuel injection assembly 2 is arranged with sliding along the X-X axis inside the injection assembly 3 oxidizer.
  • a passage 35 for the oxidant pipe (FIG. 1) is delimited between the spray head 6 of the injection assembly 2 and the head 21 of the injection assembly 3, and between the tube 7 of the injection assembly 2 and the tube 20 of the injection assembly 3.
  • This passage 35 communicates with the rear with the connector 23 of the injection assembly 3 via a orifice 36 formed in the wall of the tube 7.
  • the nut 28 screwed onto the end piece 271 of the clamping device 22 compresses, by means of its annular lip 32, of the elastic ring 29 and of the metal washer, the O-ring 30 which bears on the shoulder 31 of the nozzle 27.
  • the seal 30 is applied to the exterior surface of the tube 7 thereby fixing the axial position of the oxidant injection assembly 3 by relative to the fuel injection assembly 2 and thereby ensuring the seal between the tubes 7 and 20 at the rear of the injector 1.
  • the tabs 270 bear radially on the front end of the tube 7 and thus ensure, with the clamping device 22, the centering of the main fuel injection assembly 2 in the fuel injection assembly 3 oxidizer.
  • the auxiliary fuel injection assembly 4 essentially comprises ( Figures 1 and 4) an inner tube 40 for fuel line auxiliary, a spray head 41 which extends the tube 40 forwards, and a outer tube 42 externally surrounding the tube 40.
  • the head 41 is of generally frustoconical shape converging towards forward.
  • the head 41 has an axial central bore 43, communicating with inside the tube 40, and six oblique bores 44, regularly distributed angularly. around the X-X axis.
  • the bores 44 are inclined towards the front by a same angle with respect to the X-X axis and communicate with the central bore 43.
  • Removable 440 tips with calibrated orifices are inserted in the bores 44.
  • the front end of the tube 42 bears axially on the spray head 41.
  • the support of the front end of the tube 42 on the head 41 is done according to frustoconical surfaces inclined with respect to the axis X-X ce which seals between the tube 42 and the head 41.
  • the tube 42 is provided with a transverse tubular connection 47 located slightly in front of the ring 46.
  • the tubes 40 and 42 define between them a passage 48 of pipe spray fluid.
  • This passage 48 communicates, on the one hand, with the orifices of the ends 440 and therefore with the bore 43, and, on the other hand, with the fitting 47, thanks to an orifice 49 formed in the wall of the tube 42.
  • the tube 40 is provided at its rear end with a tubular connection 51 transverse then of a clamping device 52 similar to the device 22 of the oxidizer injection assembly 3.
  • the central bore 43 of the spray head 41 is delimited by a wall which comprises a front section 53 of constant section, then a section intermediate 54 diverging towards the rear, and finally a rear section 55 of constant section.
  • the auxiliary fuel injection assembly 4 is disposed at the outside of the oxidant injection assembly 3 in a sliding manner along the X-X axis.
  • the section 53 of the spray head 41 is supported on the front end of the injection head 21 of the oxidant injection assembly 3.
  • the axial grooves 26 of the injection head 21 are placed opposite bores 44 of the spray head 41 so that these grooves 26 communicate with the orifices of the end caps 440 inserted in the bores 44.
  • the tubes 20 of the injection assembly 3 and 40 and of the assembly 4 injection lines define between them a passage 57 (FIG. 1) for the fuel line auxiliary which communicates, on the one hand, at the rear with the transverse connector 51 thanks to an orifice 58 formed in the wall of the tube 40, and on the other hand, at the front with the outer annular groove 27 of the injection head 21, and therefore with the axial grooves 26 of this head 21.
  • a passage 57 for the fuel line auxiliary which communicates, on the one hand, at the rear with the transverse connector 51 thanks to an orifice 58 formed in the wall of the tube 40, and on the other hand, at the front with the outer annular groove 27 of the injection head 21, and therefore with the axial grooves 26 of this head 21.
  • the seal seal 30 of the clamping device 52 is axially compressed to take radially supported on the outer surface of the tube 20.
  • the assembly 3 of oxidant injection is centered in the fuel injection assembly 4 auxiliary and the relative axial position of these assemblies 3 and 4 is fixed.
  • the front edge 60 of the spray head 6 of the injection assembly 2 is located axially slightly behind the wafer front 61 of the injection head 21 of the injection assembly 3. Furthermore, the section 61 of the injection head 21 is located substantially at the same level axial than the front edge 62 of the spray head 41 of the assembly 4.
  • the front sections 60, 61 and 62 delimiting the outlets axially heads 6, 21 and 41, these respective outputs will have the same references as the corresponding tranches 60, 61 and 62.
  • the injector 1 of FIG. 1 is intended to be placed in the wall a precalcination device, for example a "Lepol" grid.
  • a source 64 of pressurized liquid industrial waste is then connected to the axial connector 17 to supply the main fuel. These waste has a PCI typically between 6000 th / t and 10000 th / t.
  • a source 65 of polluted industrial water with low PCI is connected to the connector transverse 51 to supply the auxiliary fuel.
  • a source 66 of oxygen under pressure is connected to the transverse connector 23 to supply the oxidant, and a source 67 of pressurized air is connected to the transverse connections 14 and 47 to supply the spray fluids.
  • Injector 1 and sources 64 to 67 then form a system injection 68.
  • the air introduced via the connector 14 in the passage 15 comes to mix, after passage in the orifices of the tips 11, to the main fuel with high PCI at the level of the spray head 6 by spraying this fuel.
  • the main fuel is ejected from the outlet 60 the head 6 in a diverging jet of very fine droplets. This jet comes to impact the inner edge 63 of the edge 61 of the injection head 21 of the assembly 3 of oxidant injection.
  • the oxygen introduced into the connector 23 circulates in the passage 35. This oxygen is then ejected from the head 21 in the form of a jet externally surrounding the main fuel jet. Due to the forms and arrangements relative to the spray head 6 and the injection head 21 the circulating oxygen in the head 21 is partly mixed with the main fuel jet between the outlet 60 of head 6 and outlet 61 of head 21. At the outlet of outlet 61 of the At head 21, the mixing of the main fuel and the oxidizer continues.
  • Low PCI fuel introduced into fitting 51 is channeled in the passage 57 then by the axial grooves 26 of the injection head 21.
  • the fuel with low PCI meets the air under pressure introduced into the fitting 49 then channeled into the passage 48 and the end holes 440.
  • Low PCI fuel is sprayed out of the grooves axial 26 in the form of a jet of very fine droplets.
  • the auxiliary fuel jet then mixes with the jets oxygen and main fuel and a flame is produced.
  • the flame thus produced at the outlet of the injector 1 allows achieve good combustion yields of low and low fuels strong PCI and reduce the amount of unburnt.
  • the injector according to the invention is for mounting and dismounting easy and presents many adjustment possibilities as it goes now be described.
  • the assembly 2 main fuel injection can slide freely inside the oxidizer injection assembly 3.
  • the position of the outlet 60 of the head spray 6 relative to the outputs 61 and 62 of the injection head 21 and the spray head 41 can for example be modified. Tightening the nut 28, we can then fix the fuel injection assembly 2 in another position relative to the oxidizer injection assembly 3, for example a position further away from outlet 60 relative to outlet 61 or a position closer to these outputs 60 and 61.
  • the position of the oxidant injection assembly 3 can be modified relative to the auxiliary fuel injection assembly 4, or even remove completely set 3 of set 4.
  • the modification of the ends 11 and 440 makes it possible to adjust spray fluid outlet speeds and therefore optimize the size fuel droplets at the outlet of injector 1.
  • each fluid spraying is preferably between 5 and 20% of the mass flow of the corresponding liquid fuel to be sprayed.
  • two separate sources connected respectively to fittings 14 and 47. These two sources can be sources of different spray fluids.
  • the oxygen injected by the injection assembly 3 only serves as an adjunct to reach the stoichiometry of the reactions of combustion and boost the flame produced.
  • this oxygen injected by the injection assembly 3 alone can ensure the stoichiometry of combustion reactions.
  • the oxidizer will be a gas comprising between 30 and 100% oxygen.
  • the grooves 26 may have a helical shape relative to the X-X axis to give a helical movement the pulverized auxiliary fuel.
  • the angle formed between the grooves 26 and the X-X axis is then preferably between 0 and 30 °. This characteristic further improves the mixture of fuels and oxidizer.
  • fins (not shown) of helical shape relative to the axis X-X can be provided outside of the head 6 in before the collar 9 to impart a helical movement to the oxidant circulating between the spray head 6 and the injection head 21.
  • the concentric arrangement of the injector allows to reach a mixture of spray jets and satisfactory overall injection, with a reduced dimensions and, if necessary, large fuel flows.
  • FIG. 5 illustrates a variant of the injector 1 of FIG. 1 according to which the spray heads 6 and 41 have been modified and in which a final spray nose 70 has been added to the front end of injector 1.
  • End pieces 71 with calibrated orifices are now arranged in fourteen transverse bores 72 formed in the wall of the spray head 6 behind the flange 9.
  • the bores 72 are divided into two rings of seven bores distributed regularly angularly around the X-X axis.
  • the two rings of bores 72 are offset axially and angularly one from the other.
  • the pins 12 are now placed at the front end of the tube 5.
  • nozzles 74 with calibrated orifices are now disposed in fourteen transverse bores 75 in the wall of the head 41 spraying behind the converging section 54 partially delimiting bore 43 of head 41.
  • Bores 74 are divided into two rings of seven bores regularly distributed angularly around the X-X axis.
  • the two crowns bores 74 are offset axially and angularly from each other.
  • the final spray nose 70 comprises a tube 76 of axis X-X closed at its front end by a transverse wall 77.
  • the rear end of the tube 76 is extended rearward and radially outward by a ring 78 of axis X-X, the frustoconical interior surface 79 of which rests on the surface radially outer 80 frustoconical of the spray head 41.
  • a locking system 81 screwed onto the front end of the tube 42 of the assembly injection 4, pushes axially, by means of axial screws 82, the ring 78 on the spray head 41 thus ensuring the seal between the outlet of injector 1 and final spray nose 70.
  • the wall 77 has two oblique bores 84, tapped and located in the same plane passing through the X-X axis. Interchangeable tips 85 with 86 calibrated orifices are screwed into the bores 84. The axes of the bores 84 diverge forward with respect to the X-X axis.
  • bits 71 and 74 with calibrated holes provide additional options for adjusting spray characteristics main and auxiliary fuels. Indeed, it is possible to plug some of these bits 71 and 74 or to change them to adjust the characteristics sprays obtained as needed.
  • the spray nose provides a spray jet global divergent and thus a higher consumption of molecules oxygen contained in the fumes present in the precalcination device.
  • the angle formed between the axes of the bores 84 and the axis X-X can be between 10 and 60 °.
  • the injector according to the invention can be also used in the lime and dolomite industries but also in industrial wastewater incinerators or installations for the reprocessing of radioactive waste.

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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)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Spray-Type Burners (AREA)

Claims (15)

  1. Einspritzdüse (1) für einen Brenner, die eine Längsachse aufweist, wobei die Einspritzdüse eine Einheit (2) zum Einspritzen eines Hauptbrennstoffs mit einem Ausgang für Hauptbrennstoff (60), eine Einheit (3) zum Einspritzen eines Sauerstoffträgers mit einem Ausgang für den Sauerstoffträger (61) und eine Einheit (4) zum Einspritzen eines Hilfsbrennstoffs mit einem Ausgang für Hilfsbrennstoff (62) aufweist, wobei die Einheiten (2, 3, 4) zum Einspritzen von Haupt- und Hilfsbrennstoff und Sauerstoffträger koaxial sind und radial umeinander angeordnet sind, und die Einheit (4) zum Einspritzen des Brennstoffs mit unterem Heizwert (PCI) radial außerhalb der Einspritzdüse (1) liegt.
  2. Einspritzdüse nach Anspruch 1, dadurch gekennzeichnet, dass jede Brennstoffeinspritzeinheit (2, 4) eine Einheit zur Zerstäubung des Brennstoffs ist, die Mittel (5, 40) zur Leitung des Brennstoffs, Mittel (7, 42) zur Leitung eines Zerstäubungsfluids und Mittel (6, 41) zur Zerstäubung umfasst, die mit den Mitteln zur Leitung des Brennstoffs und des Zerstäubungsfluids verbunden sind.
  3. Einspritzdüse nach Anspruch 2, dadurch gekennzeichnet, dass für die oder jede Brennstoffzerstäubungseinheit (2, 4) die Mittel (5, 7, 40, 42) zur Leitung des Brennstoffs und des Zerstäubungsfluids radial umeinander angeordnet sind.
  4. Einspritzdüse nach Anspruch 3, dadurch gekennzeichnet, dass für die oder jede Brennstoffzerstäubungseinheit (2, 4) die Mittel (57, 42) zur Leitung des Zerstäubungsfluids um Mittel (5, 40) zur Leitung des Brennstoffs angeordnet sind.
  5. Einspritzdüse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine oder jede Brennstoffzerstäubungseinheit (2, 4) in der Einspritzdüse (1) relativ zu der Sauerstoffträgereinspritzeinheit (3) auf gleitende und zwischen zumindest einer beabstandeten Position und einer angenäherten Position einstellbare Weise montiert sind, wobei der entsprechende Brennstoffausgang (60, 62) und der Sauerstoffträgerausgang (61) in der beabstandeten und der angenäherten Position beabstandet beziehungsweise angenähert sind.
  6. Einspritzdüse nach Anspruch 5, dadurch gekennzeichnet, dass die oder jede Brennstoffeinspritzeinheit (2, 4) abnehmbar ist.
  7. Einspritzdüse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Sauerstoffträgereinspritzeinheit (3) radial zwischen der Hauptbrennstoffeinspritzeinheit (2) und der Hilfsbrennstoffeinspritzeinheit (4) angeordnet ist.
  8. Einspritzdüse nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass sie Mittel (63) zum in Drehung Versetzen eines oder jedes Brennstoffs und/oder des Sauerstoffträgers um die Längsachse (X-X) der Einspritzdüse (1) am Ausgang (62) des entsprechenden Einspritzeinheit (4) umfasst.
  9. Einspritzdüse nach Anspruch 8, dadurch gekennzeichnet, dass die mittel zum in Drehung Versetzen Kanäle (63) mit Schraubenform relativ zur Längsachse (X-X) der Einspritzdüse (1) umfassen.
  10. Einspritzdüse nach Anspruch 9, dadurch gekennzeichnet, dass die Kanäle (63) einen Winkel mit der Längsachse (X-X) der Einspritzdüse (1) bilden, der zwischen etwa 0 und 30° liegt.
  11. Einspritzdüse nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie einen Zerstäubungskopf (70) mit kalibrierten Öffnungen (86) umfasst, der stromabwärts von den jeweiligen Ausgängen (60, 61, 62) der Einspritzeinheiten (2, 3, 4) für Haupt- und Hilfsbrennstoff und Sauerstoffträger angebracht sind.
  12. Einspritzdüse nach Anspruch 11, dadurch gekennzeichnet, dass die kalibrierten Öffnungen (86) des Zerstäubungskopfs (70) in einer Längsebene der Einspritzdüse (1) miteinander einen Winkel zwischen etwa 20 und 120° definieren.
  13. Einspritzsystem (68) für Haupt- und Hilfsbrennstoff und einen Sauerstoffträger mit einer Quelle (64) für Hauptbrennstoff, einer Quelle (65) für Hilfsbrennstoff, einer Quelle (66) für einen Sauerstoffträger und zumindest einer Einspritzdüse (1), dadurch gekennzeichnet, dass die Einspritzdüse eine Einspritzdüse nach einem der Ansprüche 1 bis 12 ist und dass die Einheiten (2, 3, 4) zum Einspritzen von Hauptund Hilfsbrennstoff und Sauerstoffträger der Einspritzdüse jeweils an die Quellen (64, 65, 66) für Haupt- und Hilfsbrennstoff und Sauerstoffträger angeschlossen sind.
  14. Einspritzsystem nach Anspruch 13, dadurch gekennzeichnet, dass eine oder jede Brennstoffeinspritzeinheit (2, 4) eine Einheit zur Zerstäubung des Brennstoffs ist, die Mittel (5, 40) zur Leitung des Brennstoffs, Mittel (7, 42) zur Leitung des Zerstäubungsfluids und Mittel (6, 41) zur Zerstäubung umfasst, die an die Mittel zur Leitung des Brennstoffs und des Zerstäubungsfluids angeschlossen sind, und dass das Einspritzsystem (68) außerdem eine Quelle (67) für Zerstäubungsfluid umfasst, die an die Mittel (7, 42) zur Leitung des Zerstäubungsfluids der oder jeder Brennstoffzerstäubungseinheit (2, 4) angeschlossen ist.
  15. Einspritzsystem nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die Sauerstoffträgerquelle eine Gasquelle ist, die zwischen 30 und 100% Sauerstoff enthält.
EP99402851A 1998-12-30 1999-11-17 Einspritzdüse für Brenner und entsprechendes Einspritzsystem Expired - Lifetime EP1016828B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816633 1998-12-30
FR9816633A FR2788108B1 (fr) 1998-12-30 1998-12-30 Injecteur pour bruleur et systeme d'injection correspondant

Publications (2)

Publication Number Publication Date
EP1016828A1 EP1016828A1 (de) 2000-07-05
EP1016828B1 true EP1016828B1 (de) 2004-11-17

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EP99402851A Expired - Lifetime EP1016828B1 (de) 1998-12-30 1999-11-17 Einspritzdüse für Brenner und entsprechendes Einspritzsystem

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US (1) US6360677B1 (de)
EP (1) EP1016828B1 (de)
JP (1) JP2000193206A (de)
AT (1) ATE282795T1 (de)
AU (1) AU6548999A (de)
DE (1) DE69921950T2 (de)
ES (1) ES2234228T3 (de)
FR (1) FR2788108B1 (de)

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DE69921950D1 (de) 2004-12-23
AU6548999A (en) 2000-07-06
EP1016828A1 (de) 2000-07-05
JP2000193206A (ja) 2000-07-14
DE69921950T2 (de) 2005-12-22
ATE282795T1 (de) 2004-12-15
FR2788108A1 (fr) 2000-07-07
ES2234228T3 (es) 2005-06-16
US6360677B1 (en) 2002-03-26
FR2788108B1 (fr) 2001-04-27

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