EP2496879A1 - Brennerdüse - Google Patents
BrennerdüseInfo
- Publication number
- EP2496879A1 EP2496879A1 EP10781800A EP10781800A EP2496879A1 EP 2496879 A1 EP2496879 A1 EP 2496879A1 EP 10781800 A EP10781800 A EP 10781800A EP 10781800 A EP10781800 A EP 10781800A EP 2496879 A1 EP2496879 A1 EP 2496879A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- hartmann
- generator
- burner nozzle
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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 first channel for combustible fluid, with an outlet opening for the combustible fluid, with a second channel for a Zerstäuber- medium and with an outlet opening for the Zerstäubermedium, in the area of a Hartmann'scher generator is arranged.
- the invention relates to a combustion device with a lance and a burner nozzle.
- Burner nozzles with a Hartmann generator are known from the prior art, by means of which combustible fluids, for example oil or liquid sulfur, are sprayed with an atomizing medium and burnt.
- 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.
- pure oxygen increases ignition speed, it has been found in practice that the flame comes so close to the burner nozzle that it is damaged, even if it is made of refractory material.
- the invention is based on the object to provide a burner nozzle available, 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.
- the outer diameter of the plate of the Hartmann generator is dimensioned such that the exit velocity of the pure oxygen from the nozzle - with the lance of a combustion device remaining the same - is so great that the maximum use - Temperature of the material of the nozzle and / or the Hartmann'schen generator in the region of the housing of the nozzle is not exceeded.
- 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 also in the longer term in the pure Sauserstoffverbrennung occurring temperatures withstands.
- the annular channel of the pure oxygen nozzle communicates with an oxygen container, i. a storage tank for pure oxygen, in conjunction.
- 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 plate is reduced in relation to the outer diameter of a Hartmann's compressed air, steam, and the like disc, while the lance of a firing device is the same, such that the exit velocity of the atomizing medium from 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. It has proven to be particularly advantageous if the exit velocity of the atomizing medium from the nozzle is substantially doubled.
- the procedure is such that a nozzle with a Hartmann generator is arranged on a lance whose diameter is dimensioned so that the exit velocity of pure oxygen from the nozzle - for the same lance as for a nozzle for the atomizing of 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 side 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 in a Hartmann'schen generator for steam, compressed air, or the like, substantially doubled.
- FIG. 1 shows a lance with a conventional burner nozzle in a sectional view
- FIG. 2 shows a lance with an embodiment of a burner nozzle according to the invention in a sectional view
- FIG. 3 shows the burner nozzle from FIG. 1 in a sectional view
- FIG. 4 shows the burner nozzle Fig. 2 in a sectional view
- Fig. 5 shows a detail of Fig. 4 in an enlarged scale.
- a combustion device with a lance 1 and a burner nozzle 2, 3 is shown.
- 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 is arranged 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.
- the combustible fluid and the Zerstäubermedium enter the burner nozzle 2, 3.
- a conventional burner nozzle 2 is disposed on the lance 1, wherein compressed air or steam or the like is used as the atomizing medium.
- 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 this 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 with respect to the outside atmosphere.
- a combustible fluid for example, oil and liquid sulfur can be used in both cases.
- FIGS. 3 and 4 the combustion nozzle 2, 3 from FIGS. 1 and 2 is shown.
- 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.
- In the main body 10 extends 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 in the invention may be smaller than 15 mm, preferably smaller than 12 mm, in particular about 11 mm.
- the exit velocity of the oxygen is doubled compared to nozzles with a plate diameter of more than 15 mm the same size of the outlet opening 17 for the Zerstäubermedium - almost.
- the outer diameter D2 of the plate 19 of the Hartmann generator 1 is 1mm.
- the pure oxygen and the oil mix and burn only at a distance from the burner nozzle 3, since due to the opposite the plate diameter D2 'shown in FIG. 3 smaller plate diameter D2, the exit velocity of pure oxygen increases.
- the inner diameter D1 of the cap 18 of the cylindrical housing 1 1 is 14 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 0.79.
- 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 0.83, preferably 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 the ratio D2 / D1 of 0.75 to 0.83, preferably in the ratio less than 0.8 permanently works properly.
- the inventive nozzle 3 for pure oxygen according to said ratio D2 / D1 works when using compressed air and steam or the like. not, because then the resulting flame would leave 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 the same at the burner nozzles 2, 3 as shown in FIGS.
- 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 (1 1).
- 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.
- an embodiment of the invention can be summarized as follows:
- a burner nozzle 3 has a first combustible fluid channel 14, a combustible fluid outlet 14 ', a second atomizing medium channel 15, and an atomizing medium outlet 17, in the region of which is a Hartmann's generator.
- atomizer pure oxygen is 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 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)
Abstract
Description
Claims
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 (de) | 2009-11-02 | 2010-10-28 | Brennerdüse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2496879A1 true EP2496879A1 (de) | 2012-09-12 |
| EP2496879B1 EP2496879B1 (de) | 2018-01-24 |
Family
ID=43568143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10781800.7A Active EP2496879B1 (de) | 2009-11-02 | 2010-10-28 | Brennerdüse |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2496879B1 (de) |
| CN (1) | CN102667339A (de) |
| AT (1) | AT509017B1 (de) |
| RU (1) | RU2534922C2 (de) |
| WO (1) | WO2011050377A1 (de) |
Families Citing this family (2)
| 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)
| 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 |
-
2009
- 2009-11-02 AT ATA1728/2009A patent/AT509017B1/de not_active IP Right Cessation
-
2010
- 2010-10-28 WO PCT/AT2010/000406 patent/WO2011050377A1/de not_active Ceased
- 2010-10-28 RU RU2012122758/06A patent/RU2534922C2/ru active
- 2010-10-28 EP EP10781800.7A patent/EP2496879B1/de active Active
- 2010-10-28 CN CN2010800559716A patent/CN102667339A/zh active Pending
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2011050377A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2534922C2 (ru) | 2014-12-10 |
| EP2496879B1 (de) | 2018-01-24 |
| AT509017B1 (de) | 2012-05-15 |
| AT509017A1 (de) | 2011-05-15 |
| CN102667339A (zh) | 2012-09-12 |
| WO2011050377A1 (de) | 2011-05-05 |
| RU2012122758A (ru) | 2013-12-10 |
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