EP1706669B1 - Flexibler parallelstrombrenner mit drallkammer - Google Patents

Flexibler parallelstrombrenner mit drallkammer Download PDF

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Publication number
EP1706669B1
EP1706669B1 EP05700928A EP05700928A EP1706669B1 EP 1706669 B1 EP1706669 B1 EP 1706669B1 EP 05700928 A EP05700928 A EP 05700928A EP 05700928 A EP05700928 A EP 05700928A EP 1706669 B1 EP1706669 B1 EP 1706669B1
Authority
EP
European Patent Office
Prior art keywords
oxygen
gas
containing gas
burner
fuel gas
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.)
Not-in-force
Application number
EP05700928A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1706669A2 (de
Inventor
Volker Häckh
Andreas Kulkies
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to PL05700928T priority Critical patent/PL1706669T3/pl
Publication of EP1706669A2 publication Critical patent/EP1706669A2/de
Application granted granted Critical
Publication of EP1706669B1 publication Critical patent/EP1706669B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/60—Devices for simultaneous control of gas and combustion air
    • 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
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/70—Baffles or like flow-disturbing devices

Definitions

  • the invention relates to an externally mixing burner with a burner head, at least one fuel gas tube and at least one tube for an oxygen-containing gas, wherein the burner head has outlet openings from the fuel gas tube and from the tube for the oxygen-containing gas. Further, the invention relates to a method of operating an external mixing burner having at least one fuel gas tube and at least one oxygen-containing gas tube through which fuel gas or oxygen-containing gas flows to the burner head.
  • External mixing burners are used for a wide variety of applications. For example, for heating and melting of metals or glass, a variety of differently designed burners are used, such as in DE 2 854 395 A disclosed. Finding a burner that is suitable for all phases of the melting process and for different load cases of the furnace is a challenge.
  • Object of the present invention is therefore to develop a burner that can be advantageously used for a variety of applications and for each phase of an application.
  • gas supply lines for fuel gas and oxygen-containing gas are provided, which are each associated with a source of fuel gas or oxygen-containing gas and of which at least one gas supply line opens eccentrically into a swirl chamber between the gas supply and the fuel gas pipe and / or between the gas supply line and the tube for oxygen-containing gas is mounted.
  • At least one of the gas supply lines upstream of the swirl chamber divides into two lines, one of these lines opens eccentrically into the swirl chamber and the other of these lines opens directly into the fuel gas pipe or into the tube for oxygen-containing gas.
  • valves are provided in the part of the gas supply lines, in which at least one gas supply line is already divided into two lines, and a control or regulating device is available, which controls or regulates the opening degrees of the valves, whereby the shape of the flame of the burner is adjustable.
  • valves are designed as solenoid valves. These allow a gradually variable setting of the flame shape.
  • the solenoid valves can be partially or completely replaced by control valves. These allow a continuously variable adjustment of the flame shape.
  • the swirl chamber preferably has a circular cross-section in a section perpendicular to the longitudinal axis of the fuel gas tube.
  • the gas supply line opens tangentially into the swirl chamber.
  • the stated object is achieved in that the fuel gas and / or the oxygen-containing gas is introduced eccentrically into the swirl chamber, in which the fuel gas or the oxygen-containing gas a swirl flow is impressed and the fuel gas or oxygen-containing gas after leaving the swirl chamber the fuel gas pipe or the tube for oxygen-containing gas is supplied.
  • the per unit time via the swirl chamber and without the swirl chamber the burner supplied amounts of fuel gas and oxygen-containing gas are controlled or regulated, wherein the fuel gas and the oxygen-containing gas are passed through valves whose degrees of opening are controlled or regulated so that the burner generates a flame having a desired and adjustable via the control or regulation form.
  • both air is suitable as an oxidizing agent, as well as oxygen-containing gas with an oxygen content of air increased oxygen content
  • oxygen-containing gas with an oxygen content of air increased oxygen content
  • oxygen-enriched air is used as the oxygen-containing gas. This has the advantage that it is still inexpensive and also already partially shows the benefits of using oxygen for combustion, which are in the air reduced nitrogen content and the higher achievable combustion temperature.
  • a gas having an oxygen content greater than the oxygen content of air in particular with an oxygen content greater than 30 vol.%.
  • a gas having an oxygen content greater than 70% by volume, in particular greater than 99.5% by volume is used as the oxygen-containing gas.
  • the benefits of oxygen are maximally pronounced, but the cost of the oxidizing agent increases, so that for each application a balance should take place, which oxygen content is technically desirable or necessary and economically justifiable.
  • a spin flow is preferably applied to the fuel gas stream.
  • the advantage here is that good mixing of the fuel with that of the oxygen occurs with a slightly shortened flame.
  • a swirl flow is impressed on the flow of the oxygen-containing gas. This is advantageous because the flame is somewhat shortened here and the burner can be structurally somewhat easier to manufacture.
  • the combustion gas flow and the flow of the oxygen-containing gas are impressed on each other in the same direction swirl flows.
  • the advantage here is that the flame is very short and quiet.
  • a further embodiment of the invention provides that opposing swirl flows are impressed on the fuel gas flow and the flow of the oxygen-containing gas. This is recommended in case an extremely short, bushy flame is needed.
  • a significant advantage of the invention is that the change in the flame length can be changed continuously (without changing the amount of fuel during operation). There are also no changes to the burner (such as, for example, nozzle change) are made. Thus, the current flame length can be reduced to one third of its maximum length.
  • the invention is particularly suitable for processes in which solid material is melted into liquid material, since here the melting materials change in shape and the flame shape of this change can be adapted.
  • Another major advantage of the invention is that the change in the flame length is infinitely and during the operation of the burner, the impression of a swirl flow started and can be stopped again, without the burner would have to be turned off and without any structural changes, such as Changing a conventional swirl disk would be necessary.
  • the change in the shape of the flame takes place via the change at least one of the two gas flows alone on the setting of the opening degree of the valves described, which in turn is done via the control or regulating device having the invention.
  • the external mixing burner according to the invention is particularly suitable for melting metals or glass.
  • the figures show a burner 1 with a burner head 2, a tube 4 for an oxygen-containing gas and with a fuel gas tube 3 (not shown).
  • the two tubes are arranged concentrically, in such a way that the fuel gas tube 3 is mounted within the tube 4.
  • a thus constructed burner 1 is also called parallel flow burner.
  • fuel gas for example, natural gas is used.
  • Oxygen-enriched air is introduced into the swirl chamber 9 via the gas feed line 7 and the line 7a. There, a swirl flow of the same direction is impressed on this gas stream. In this case, the valve 12 is opened and the valve 13 is closed.
  • the flow of oxygen-enriched air leaves the swirl chamber and is introduced into the tube 4.
  • the natural gas stream is introduced into the fuel gas tube 3.
  • the two gas streams mix and there is a characteristic flame.
  • the shape of the resulting flame depends directly on the setting of the valves 10, 11, 12 and 13.
  • valves 10, 11, 12 and / or 13 By forming the valves 10, 11, 12 and / or 13 as control valves intermediate positions, ie adjustable degrees of opening of these valves are possible Thus, the shape of the flame is infinitely adjustable. The change in the shape of the flame takes place without difficulty during the operation of the burner 1 by means of the spreader or control device for the valves 10, 11, 12, 13.
  • the supply quantities of fuel gas and oxygen-containing gas must be taken.
  • the once selected supply quantities remain constant during the operation of the burner. Only by the choice of valve positions for the valves 10, 11, 12, 13 a short, bushy and wide flame is generated up to a long, narrow flame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Particle Accelerators (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Air Supply (AREA)
EP05700928A 2004-01-22 2005-01-14 Flexibler parallelstrombrenner mit drallkammer Not-in-force EP1706669B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05700928T PL1706669T3 (pl) 2004-01-22 2005-01-14 Elastyczny w eksploatacji palnik dyfuzyjny o równoległym dopływie gazu i powietrza z komorą zawirowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003343A DE102004003343A1 (de) 2004-01-22 2004-01-22 Flexibler Parallelstrombrenner mit Drallkammer
PCT/EP2005/000332 WO2005071314A2 (de) 2004-01-22 2005-01-14 Flexibler parallelstrombrenner mit drallkammer

Publications (2)

Publication Number Publication Date
EP1706669A2 EP1706669A2 (de) 2006-10-04
EP1706669B1 true EP1706669B1 (de) 2010-07-14

Family

ID=34745015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05700928A Not-in-force EP1706669B1 (de) 2004-01-22 2005-01-14 Flexibler parallelstrombrenner mit drallkammer

Country Status (15)

Country Link
US (1) US20070287108A1 (ru)
EP (1) EP1706669B1 (ru)
JP (1) JP2007518959A (ru)
KR (1) KR20060132676A (ru)
AT (1) ATE474190T1 (ru)
AU (1) AU2005206625A1 (ru)
BR (1) BRPI0507029A (ru)
CA (1) CA2554034A1 (ru)
DE (2) DE102004003343A1 (ru)
EA (1) EA008661B1 (ru)
ES (1) ES2349012T3 (ru)
NO (1) NO330418B1 (ru)
PL (1) PL1706669T3 (ru)
WO (1) WO2005071314A2 (ru)
ZA (1) ZA200604745B (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004045701A1 (de) * 2004-09-21 2006-03-23 Linde Ag Metallschmelzofen und Verfahren sowie Verwendung zum Schmelzen von Metallen
WO2011080780A1 (en) * 2009-12-30 2011-07-07 Hysytech S.R.L. Burner and combustion device comprising said burner
JP2013245880A (ja) * 2012-05-25 2013-12-09 Daido Ecomet Co Ltd 粉粒体溶融バーナーおよび粉粒体溶融装置
JP7074623B2 (ja) * 2018-09-07 2022-05-24 東邦瓦斯株式会社 バーナ

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE449301C (de) * 1924-09-13 1927-09-12 Barbara Gaertner Geb Braetsch Brennstoffstaubbrenner mit durch Luft oder mechanische Mittel zugefuehrtem Brennstoffstaub
US3240433A (en) * 1963-04-08 1966-03-15 Eclipse Fuel Eng Co Burner construction having casing with tangentially arranged air inlet and swirl chambers
GB1099959A (en) * 1965-10-28 1968-01-17 Janos Miklos Beer Improvements in or relating to burners for pulverised coal or like solid fuel or for liquid or gaseous fuel
FR1556587A (ru) * 1967-03-01 1969-02-07
US3476494A (en) * 1967-08-29 1969-11-04 Exxon Research Engineering Co Vortex burner
US3726634A (en) * 1970-09-30 1973-04-10 D Zagoroff Burner
US3758090A (en) * 1971-03-26 1973-09-11 Nippon Kokan Kk Combustion apparatus for blast furnaces
US3893810A (en) * 1972-12-18 1975-07-08 La Clede Lientz Flare stack burner for odor and pollutant elimination
US4004789A (en) * 1975-02-05 1977-01-25 Bethlehem Steel Corporation Tunnelized burner for panel type furnace
US4218426A (en) * 1976-04-09 1980-08-19 Continental Carbon Company Method and apparatus for the combustion of waste gases
DE2854395C2 (de) * 1978-12-16 1986-07-03 Vsesojuznyj naučno-issledovatel'skij institut metallurgičeskoj teplotechniki, Swerdlowsk/Sverdlovsk Flachflammengasbrenner
US4398827A (en) * 1980-11-10 1983-08-16 Dietrich David E Swirl mixing device
US4845940A (en) * 1981-02-27 1989-07-11 Westinghouse Electric Corp. Low NOx rich-lean combustor especially useful in gas turbines
US4565137A (en) * 1983-08-08 1986-01-21 Aqua-Chem, Inc. Bio-mass suspension burner
US5211705A (en) * 1987-03-19 1993-05-18 Damper Design, Inc. Apparatus and method for delivery of combustion air in multiple zones
US4879959A (en) * 1987-11-10 1989-11-14 Donlee Technologies, Inc. Swirl combustion apparatus
US4988287A (en) * 1989-06-20 1991-01-29 Phillips Petroleum Company Combustion apparatus and method
DE3936105C2 (de) * 1989-10-30 1994-12-22 Guenter Dr Ing Slowik Drallerzeuger für Drallbrenner
CA2093316C (en) * 1990-10-05 2002-12-03 Janos M. Beer Combustion system for reduction of nitrogen oxides
US5240404A (en) * 1992-02-03 1993-08-31 Southern California Gas Company Ultra low NOx industrial burner
WO1994007086A1 (en) * 1992-09-18 1994-03-31 Luminis Pty Ltd. Variable flame burner configuration
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Also Published As

Publication number Publication date
AU2005206625A1 (en) 2005-08-04
KR20060132676A (ko) 2006-12-21
ATE474190T1 (de) 2010-07-15
ES2349012T3 (es) 2010-12-21
BRPI0507029A (pt) 2007-06-05
NO330418B1 (no) 2011-04-11
JP2007518959A (ja) 2007-07-12
DE502005009897D1 (de) 2010-08-26
EA200601111A1 (ru) 2007-02-27
WO2005071314A3 (de) 2005-09-09
WO2005071314A2 (de) 2005-08-04
CA2554034A1 (en) 2005-08-04
DE102004003343A1 (de) 2005-08-11
US20070287108A1 (en) 2007-12-13
PL1706669T3 (pl) 2010-12-31
EA008661B1 (ru) 2007-06-29
EP1706669A2 (de) 2006-10-04
NO20063738L (no) 2006-09-21
ZA200604745B (en) 2007-11-28

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