EP2496879B1 - Buse de brûleur - Google Patents

Buse de brûleur Download PDF

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Publication number
EP2496879B1
EP2496879B1 EP10781800.7A EP10781800A EP2496879B1 EP 2496879 B1 EP2496879 B1 EP 2496879B1 EP 10781800 A EP10781800 A EP 10781800A EP 2496879 B1 EP2496879 B1 EP 2496879B1
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EP
European Patent Office
Prior art keywords
burner nozzle
outlet opening
hartmann
generator
nozzle
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.)
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Application number
EP10781800.7A
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German (de)
English (en)
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EP2496879A1 (fr
Inventor
Heinz Haberfelner
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.)
CTP-DUMAG GmbH
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CTP-DUMAG GmbH
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Application filed by CTP-DUMAG GmbH filed Critical CTP-DUMAG GmbH
Publication of EP2496879A1 publication Critical patent/EP2496879A1/fr
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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
    • F23D11/34—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means

Definitions

  • the invention relates to a burner nozzle with a capped housing, with a first central combustible fluid channel, with a central combustible fluid outlet, with a second annularly disposed channel around the first central channel for a nebulizing medium around the first, central outlet opening arranged outlet opening for the Zerstäubermedium and with a arranged in the region of the annular outlet opening Hartmann's generator, wherein the annular outlet opening is formed by the distance between the inner diameter of the cap and the outer diameter of the plate of the Hartmann'schen generator and wherein the outer diameter of the plate of the Hartmann'schen generator is dimensioned so that when using pure oxygen as Zerstäubermedium the exit velocity of the atomizing medium from the burner nozzle is so large that the maximum operating temperature of We of the burner nozzle and / or the Hartmann generator in the region of the housing of the burner nozzle is not exceeded.
  • the invention relates to a combustion device with a lance and a burner nozzle and the use of a burner nozzle.
  • Burner nozzles are known with a Hartmann's generator, by means of which combustible fluids, such as oil or liquid sulfur, sprayed with a Zerstäubermedium and burned.
  • the atomizing medium used was usually compressed air or steam.
  • a disadvantage of the use of compressed air or steam is that only a certain flame temperature can be achieved. To overcome this disadvantage can be used as atomizer pure oxygen, with which much higher flame temperatures can be achieved.
  • AT 339 456 B discloses a burner nozzle according to the preamble of claim 1.
  • the invention is based on the object to provide a burner nozzle, with which the problems addressed are avoided. This object is achieved according to the invention with a burner nozzle, which has the features of claim 1.
  • Preferred and advantageous embodiments of the burner nozzle according to the invention are the subject of the dependent claims. According to the invention, the quotient of the outer diameter of the plate of the Hartmann generator and the inner diameter of the cap of the housing of the burner nozzle is between 0.75 and 0.80.
  • the problem mentioned at the outset that the nozzle is damaged in a pure oxygen combustion by exceeding the maximum operating temperature in the region of the nozzle occurs.
  • the effect occurs that the nozzle can withstand the temperatures occurring in pure oxygen combustion even in the longer term.
  • the maximum operating temperature of the material of the nozzle and / or the Hartmann'schen generator is not exceeded at the front end side of the housing of the nozzle, since the temperatures occurring at the nozzle are greatest here ,
  • the annular channel of the nozzle for the pure oxygen is with an oxygen tank, ie a storage tank for pure oxygen in combination.
  • the maximum operating temperature may, for example, be in the range of 600 ° C. or 1,500 ° C. If the nozzle and the plate of the Hartmann generator are formed from different materials, the diameter of the plate is dimensioned within the scope of the invention in such a way that the temperature which corresponds to the lowest maximum operating temperature of the materials used is not exceeded.
  • the outside diameter of the Hartmann's pure oxygen generator diameter relative to the outer diameter of a Hartmann generator for compressed air, steam, and the like is reduced, while the lance of a combustor is the same, such that the exit velocity of the atomizer medium is the nozzle is increased.
  • reduced diameter plate diameter for pure oxygen occurs at the same outlet opening for the Zerstäubermedium the effect that the mixing and combustion of Zerstäubermedium, here pure oxygen, and combustible fluid with such a distance from the burner nozzle takes place that the burner nozzle has taken no more damage due to the high flame temperature.
  • the procedure is such that a nozzle with a Hartmann generator is arranged on a lance, whose diameter is dimensioned such that the nozzle Exit velocity of pure oxygen from the nozzle - with the same lance as for a nozzle for atomizing steam, compressed air, and the like - is so great that the maximum operating temperature of the material of the nozzle and / or the Hartmann'schen generator on the front end of the housing of the nozzle is not exceeded.
  • a Hartmann'scher generator is used, through whose plate diameter, the exit velocity of pure oxygen over the exit velocity at a Hartmann'schen generator for steam, compressed air, or the like, substantially doubled.
  • Fig. 1 a lance with a conventional burner nozzle in a sectional view
  • Fig. 2 a lance with an embodiment of a burner nozzle according to the invention in a sectional view
  • Fig. 3 the burner nozzle off Fig. 1 in a sectional view
  • Fig. 4 the burner nozzle off Fig. 2 in a sectional view
  • Fig. 5 a detail from Fig. 4 on an enlarged scale.
  • the lance 1 has a base body 4, within which a first channel 6 for combustible fluid running along the longitudinal axis 5 of the firing device and a second channel 7 for atomizing medium is arranged.
  • the first channel 6 is arranged centrally, whereas the second channel 7 is provided as a running around the central channel 6 annular channel.
  • a supply line 8 for the combustible fluid which opens into the central channel 6.
  • a supply line 9 is provided for the atomizer, which opens into the Rinkanal 7 and is arranged substantially perpendicular to the longitudinal axis 5. Via the central channel 6 and the annular channel 7, the combustible fluid and the atomizer medium reach the burner nozzle 2, 3.
  • Fig. 1 is arranged on the lance 1, a conventional burner nozzle 2, wherein the atomizing medium compressed air or steam or the like is used.
  • the used O-ring seal O ' there is the problem that compressed air or steam can penetrate into the central channel 6 for the combustible fluid.
  • the penetration of atomizer medium is harmless in a compressed air or steam atomization.
  • a burner nozzle 3 according to the invention is arranged on the lance 1, pure oxygen being used as the atomizing medium. With oxygen, it is dangerous if it penetrates into the central channel 6 for the combustible fluid, which is why the O-ring seal O seals at the lance 1 with the burner nozzle 3 according to the invention against the outside atmosphere.
  • oil and liquid sulfur can be used in both cases.
  • the burner nozzle 2, 3 has a base body 10, which is arranged in the interior of a cylindrical housing 11 and in the region of the front end face 12 of the housing 11 has an annular groove serving as a resonance chamber 13 of a Hartmann generator.
  • a first, central channel 14 as a continuation of the central channel 6 for the combustible fluid, which opens into an outlet opening 14 '.
  • the supply opening 14 ' may be associated with a distributor for the combustible fluid.
  • a second, annular channel 15 is formed as a continuation of the annular channel 7 for the atomizer medium, which ends in a nozzle chamber 16 directed against the longitudinal axis 5.
  • the nozzle chamber 16 opens into the resonance chamber 13 of the Hartmann generator, so that the atomizer medium penetrates into the resonance chamber 13 and is set in oscillation.
  • the Zerstäubermedium then exits through an annular opening 17 whose width - seen in plan view of the burner nozzle 2, 3 - from the distance between the inner diameter D1, D1 'of the cap 18 of the cylindrical housing 11 and the outer diameter D2, D2' of the plate 19 of the Hartmann generator is formed.
  • the Hartmann generator By the Hartmann generator a vibration field is established, through which the emerging from the central channel 14 combustible fluid is atomized very fine.
  • the atomized, combustible fluid is intimately mixed and burned with the atomizer medium operating the Hartmann generator.
  • the outer diameter D2 'of the plate 19 of the Hartmann generator is greater than 15 mm. Steam or compressed air and oil mix immediately after the annular opening 17 and burn there. If pure oxygen were used as atomizing medium in this burner nozzle 2, the higher flame temperature would damage the burner nozzle 2.
  • the inner diameter D1 'of the cap 18 of the cylindrical housing 11 is 18 mm, so that the quotient of the outer diameter D2' of the plate 19 of the Hartmann generator and the inner diameter D1 'of the cap 18 of the housing 11 of the burner nozzle 3 is 0.83 ,
  • the outer diameter D2 of the plate 19 of the Hartmann generator can be less than 15 in the context of the invention mm, preferably less than 12 mm, in particular about 11 mm.
  • the exit velocity of the oxygen is doubled compared with nozzles with a diameter of 15 mm or more, with the same size of the atomizing medium outlet 17.
  • Fig. 4 is the outer diameter D2 of the plate 19 of the Hartmann generator 11mm. The pure oxygen and the oil mix and burn only at a distance from the burner nozzle 3, since due to the opposite to the plate diameter D2 'according to Fig. 3 smaller diameter plate D2 increases the exit velocity of pure oxygen.
  • the inner diameter D1 of the cap 18 of the cylindrical housing 11 is 14 mm, so that the quotient of the outer diameter D2 of the plate 19 of the Hartmann's generator and the inner diameter D1 of the cap 18 of the housing 11 of the burner nozzle 3 is 0.79.
  • the quotient of the outer diameter D2 of the plate 19 of the Hartmann generator and the inner diameter D1 of the cap 18 of the housing 3 of the burner nozzle 11 is less than 0.80 in the context of the invention.
  • the ratio D2 / D1 is between 0.80 and 0.75, since these embodiments offer a particularly advantageous flow pattern of the oxygen for the combustion of the fluid.
  • the exit velocity of the pure oxygen per se is determined by the diameter of the plate of the Hartmann generator, it has surprisingly been found that the ratio of D 2 / D 1 depends essentially on the function of the oxygen nozzle, and that the nozzle 3 is above all in the range of the ratio D2 / D1 of 0.75 to 0.8 permanently works properly.
  • the inventive nozzle 3 for pure oxygen according to the said ratio D2 / D1 works when using compressed air and steam or the like. not, because then the resulting flame would tear off due to the excessive exit velocity.
  • the distance between the inner diameter D1, D1 'of the cap 18 of the housing 11 and the outer diameter D2, D2' of the plate 19 of the Hartmann generator is at the burner nozzles 2, 3 according to the 3 and 4 equal.
  • Fig. 5 shows the area of the annular opening 17 for the pure oxygen in an enlarged scale.
  • the width of the outlet opening 17 for the oxygen corresponds to the distance between the lower outer edge (20) of the plate (19) of the Hartmann's generator and the upper inner edge (21) of the cap (18) of the housing (11).
  • the lateral surface intended between the outer edge (20) and the inner edge (21) is approximately 315 mm 2 at a height h of 4 mm.
  • the lateral surface formed between the lower outer edge of the plate of the Hartmann generator and the upper inner edge of the cap of the housing is less than 415 mm 2 , preferably less than 350 mm 2 , in particular less than 315 mm 2 , is.
  • a particularly advantageous flow pattern of oxygen offers.
  • a burner nozzle 3 has a first, central combustible fluid channel 14, a first combustible fluid central outlet orifice 14 ', a second annular channel 15 for atomizing medium disposed annularly about the first, central channel 14, and a ring around the first, central one Outlet opening 14 'arranged outlet opening 17 for the Zerstäubermedium, in the region of a Hartmann'scher generator is arranged on.
  • the atomizing medium is pure oxygen used.
  • the outer diameter D2 of the plate 19 of the Hartmann generator is dimensioned such that the exit velocity of the pure oxygen from the nozzle 3 is so great that the maximum operating temperature of the material of the nozzle and / or the Hartmann generator in the region of the housing 11 the nozzle 3 is not exceeded.
  • the quotient of outer diameter D2 of the plate 19 of the Hartmann generator and inner diameter D1 of the cap 18 of the housing 11 of the nozzle 3 is between 0.75 and 0.80. The effect occurs that the mixing and combustion of oxygen and combustible fluid takes place at such a distance from the burner nozzle 3 that the burner nozzle 3 is not damaged by the high flame temperature.

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)
  • Air Supply (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Claims (5)

  1. Buse de brûleur (3) avec un corps (11) présentant un capuchon (18), avec un premier canal central (14) pour un fluide combustible, avec une ouverture de sortie centrale (14') pour le fluide combustible, avec un deuxième canal (15) pour un agent de pulvérisation disposé de façon annulaire autour du premier canal central (14), avec une ouverture de sortie (17) pour l'agent de pulvérisation disposée de façon annulaire autour de la première ouverture de sortie centrale (14') et avec un générateur Hartmann disposé au niveau de l'ouverture de sortie annulaire (17), l'ouverture de sortie annulaire (17) étant formée par l'intervalle entre le diamètre intérieur (D1) du capuchon (18) et le diamètre extérieur (D2) du disque (19) du générateur Hartmann et le diamètre extérieur (D2) du disque (19) du générateur Hartmann étant dimensionné de telle façon que si de l'oxygène pur est utilisé comme agent de pulvérisation, la vitesse de sortie de l'agent de pulvérisation hors de la buse de brûleur (3) soit telle que la température maximale de service du matériau de la buse de brûleur et/ou du générateur Hartmann au niveau du corps (11) de la buse de brûleur (3) n'est pas dépassée, caractérisée en ce que le quotient du diamètre extérieur (D2) du disque (19) du générateur Hartmann et du diamètre intérieur (D1) du capuchon (18) du corps (11) de la buse de brûleur (3) est compris entre 0,75 et 0,80.
  2. Dispositif de combustion avec une lance (1) et une buse de brûleur (3), caractérisé en ce qu'une buse de brûleur selon la revendication 1 est disposée sur la lance (1).
  3. Dispositif de combustion selon la revendication 2, caractérisé en ce que la lance (1) porte un joint d'étanchéité torique (O) qui assure l'étanchéité vis-à-vis de l'atmosphère extérieure.
  4. Utilisation d'une buse de brûleur (3)
    - avec un corps (11) présentant un capuchon (18),
    - avec un premier canal central (14) pour un fluide combustible, avec une ouverture de sortie centrale (14') pour le fluide combustible,
    - avec un deuxième canal (15) pour un agent de pulvérisation disposé de façon annulaire autour du premier canal central (14),
    - avec une ouverture de sortie (17) pour l'agent de pulvérisation disposée de façon annulaire autour de la première ouverture de sortie centrale (14')
    - et avec un générateur Hartmann disposé au niveau de l'ouverture de sortie annulaire (17),
    - l'ouverture de sortie annulaire (17) étant formée par l'intervalle entre le diamètre intérieur (D1) du capuchon (18) et le diamètre extérieur (D2) du disque (19) du générateur Hartmann,
    - le diamètre extérieur (D2) du disque (19) du générateur Hartmann étant dimensionné de telle façon que la vitesse de sortie de l'agent de pulvérisation hors de la buse de brûleur (3) soit telle que la température maximale de service du matériau de la buse de brûleur et/ou du générateur Hartmann au niveau du corps (11) de la buse de brûleur (3) n'est pas dépassée,
    - et le quotient du diamètre extérieur (D2) du disque (19) du générateur Hartmann et du diamètre intérieur (D1) du capuchon (18) du corps (11) de la buse de brûleur (3) étant compris entre 0,75 et 0,80,
    pour pulvériser le fluide combustible en utilisant de l'oxygène pur comme agent de pulvérisation.
  5. Utilisation d'une buse de brûleur (3) selon la revendication 4 dans un dispositif de combustion avec une lance (1), dans lequel la buse de brûleur (3) et disposée sur la lance (1).
EP10781800.7A 2009-11-02 2010-10-28 Buse de brûleur Active EP2496879B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1728/2009A AT509017B1 (de) 2009-11-02 2009-11-02 Brennerdüse
PCT/AT2010/000406 WO2011050377A1 (fr) 2009-11-02 2010-10-28 Buse de brûleur

Publications (2)

Publication Number Publication Date
EP2496879A1 EP2496879A1 (fr) 2012-09-12
EP2496879B1 true EP2496879B1 (fr) 2018-01-24

Family

ID=43568143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10781800.7A Active EP2496879B1 (fr) 2009-11-02 2010-10-28 Buse de brûleur

Country Status (5)

Country Link
EP (1) EP2496879B1 (fr)
CN (1) CN102667339A (fr)
AT (1) AT509017B1 (fr)
RU (1) RU2534922C2 (fr)
WO (1) WO2011050377A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521116B1 (de) * 2018-04-10 2020-03-15 Cs Comb Solutions Gmbh Zerstäubungsdüse
AT527649A1 (de) * 2023-09-28 2025-04-15 Dumag Gmbh Düse

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234687B (de) * 1964-02-13 1967-02-23 Ultrasonics Ltd Vorrichtung zum Vernebeln von Fluessigkeiten in Luft oder Gasen, insbesondere fuer Zerstaeuberbrenner
DE1551931A1 (de) * 1967-04-18 1970-05-21 Bergwerksverband Gmbh Brenner mit rotierendem Zerstaeuberbecher zur Verbrennung von Kohle-Wasser-Gemischen
AT285791B (de) * 1968-12-23 1970-11-10 Dumag Offene Handelsgesselscha Einrichtung zum Versprühen von Flüssigkeiten insbesondere von flüssigen Brennstoffen
US3741484A (en) * 1970-09-30 1973-06-26 Decafix Ltd Atomisers
AT339456B (de) * 1974-09-20 1977-10-25 Dumag Ohg Verfahren zum verbrennen von fliessfahigen stoffgemischen und brennerduse zur durchfuhrung des verfahrens
AT341064B (de) * 1975-10-01 1978-01-25 Dumag Ohg Brennerduse fur verbrennung von ol und bzw. oder brenngas mit einem durch druckgas betriebenen hartmann'schen schall- oder ultraschallschwingungsgenerator
NL178928C (nl) * 1976-02-04 1986-06-02 Nederlanden Staat Verbetering van een piezo-elektrisch filter met een zeer smalle doorlaatband.
SE451114B (sv) * 1981-11-13 1987-09-07 Fluidcarbon International Ab Sett for forstoftning av partikelhaltiga dispersioner och losningar
JPS61173016A (ja) * 1985-01-25 1986-08-04 ドウマツク・オツフエネ・ハンデルスゲゼルシヤフト・ドクトル・テヒニツシエ・ルードヴイツヒ・カルーツア・ウント・コンパニー 流動可燃性媒体の霧化ノズル
SU1638460A1 (ru) * 1988-11-09 1991-03-30 Научно-Производственное Объединение По Исследованию И Проектированию Энергетического Оборудования Им.И.И.Ползунова Акустическа форсунка
RU2103601C1 (ru) * 1996-03-15 1998-01-27 Олег Александрович Солин Акустическая форсунка
RU2292999C2 (ru) * 2003-10-06 2007-02-10 Государственное предприятие Научно-исследовательский институт машиностроения Устройство для газоструйной резки материалов
TWI381897B (zh) * 2004-12-22 2013-01-11 大陽日酸股份有限公司 金屬超微粉之製造方法
RU2371257C1 (ru) * 2008-07-09 2009-10-27 Алексей Викторович Гладилин Ультразвуковой распылитель жидкости

Also Published As

Publication number Publication date
RU2534922C2 (ru) 2014-12-10
AT509017B1 (de) 2012-05-15
EP2496879A1 (fr) 2012-09-12
AT509017A1 (de) 2011-05-15
CN102667339A (zh) 2012-09-12
WO2011050377A1 (fr) 2011-05-05
RU2012122758A (ru) 2013-12-10

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