WO2012065691A2 - Brûleur à recirculation de gaz de fumées réglable - Google Patents

Brûleur à recirculation de gaz de fumées réglable Download PDF

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Publication number
WO2012065691A2
WO2012065691A2 PCT/EP2011/005541 EP2011005541W WO2012065691A2 WO 2012065691 A2 WO2012065691 A2 WO 2012065691A2 EP 2011005541 W EP2011005541 W EP 2011005541W WO 2012065691 A2 WO2012065691 A2 WO 2012065691A2
Authority
WO
WIPO (PCT)
Prior art keywords
burner
throttle device
flue gas
combustion chamber
supply channel
Prior art date
Application number
PCT/EP2011/005541
Other languages
German (de)
English (en)
Other versions
WO2012065691A3 (fr
Inventor
Robert Stegemann
Christopher Eberstein
Michael Nold
Christian Geipel
Original Assignee
Linde Aktiengesellschaft
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 Aktiengesellschaft filed Critical Linde Aktiengesellschaft
Priority to RU2013127511/06A priority Critical patent/RU2013127511A/ru
Priority to US13/885,404 priority patent/US20130269576A1/en
Priority to CA2816176A priority patent/CA2816176A1/fr
Publication of WO2012065691A2 publication Critical patent/WO2012065691A2/fr
Publication of WO2012065691A3 publication Critical patent/WO2012065691A3/fr

Links

Classifications

    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • 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
    • 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 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/20—Premixing fluegas with fuel
    • 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 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/50—Control of recirculation rate

Definitions

  • the invention relates to a burner for firing a combustion chamber, with a supply channel for supplying fuel gas or combustion air in the
  • Combustion chamber wherein the burner has an inlet opening through which flue gas can flow into the supply channel.
  • a burner of the generic type is for example from the patent
  • the burner which is arranged at the bottom of the combustion chamber of a combustion furnace, comprises a first supply channel for supplying fuel gas into the combustion chamber, with an inlet opening for
  • Inlet channel incoming, pressurized fuel gas, the flue gas is sucked and mixes with the fuel gas.
  • Combustion air can be introduced into the combustion chamber via a second supply channel.
  • the outlet openings of the two supply channels are arranged adjacent, so that the
  • the flue gas suction through the burner affects the shape of the forming flame, which can be upset or otherwise deformed, for example, so that the reaction zone concentrates in a smaller space and the maximum combustion temperature increases. Due to this effect, the nitrogen oxide lowering effect of the flue gas recirculation is neutralized, but at least attenuated. In addition, a deformed flame in the combustion chamber arranged internals, such as reformer or crevices, come too close and damage them.
  • Object of the present invention is therefore to modify a burner of the generic type so that the disadvantages of the prior art can be overcome.
  • This object is achieved in that the burner comprises an adjustable throttle device, via which the flow rate of the flue gas flowing into the supply channel is adjustable.
  • Burner setting a larger or smaller flow of flue gas are sucked from the combustion chamber.
  • the flow conditions in the combustion chamber and thus the conditions for the formation of nitrogen oxides are also affected.
  • the throttle device is preferably designed so that it can be operated in the installed state of the burner from outside the combustion chamber. With their help, the size of the flow rate of the flowing into the feed channel flue gas can be changed at any time, but especially during the burner operation.
  • the burner according to the invention can be used for firing steam reformers and cracking furnaces, but also other process furnaces. Such devices are operated stationary for longer periods. This means that the
  • a variant of the burner according to the invention provides that the throttle device is connected to a Verstellellantrieb over which it is adjustable by means of a motor. This variant makes it possible, for example, to remotely control the position of the throttle device from a control room. Furthermore, the throttle device is connected to a Verstellellantrieb over which it is adjustable by means of a motor. This variant makes it possible, for example, to remotely control the position of the throttle device from a control room. Furthermore, the throttle device is connected to a Verstellellantrieb over which it is adjustable by means of a motor.
  • Throttle device are integrated into a control loop, with which the
  • Operating conditions can always be kept at a predetermined value.
  • the throttle device is part of a control loop, it may be useful if the flow rate of the inflowing into the supply channel Flue gas linear or at least approximately linear with the position of
  • Throttle device can be changed.
  • An embodiment of the invention therefore provides that the inlet opening and / or the throttle device are designed with a shape through which an at least linear in the operation of the burner
  • the throttling device usually comes into contact with aggressive gases during burner operation, the temperatures of which can be far above 1000 ° C. To its functionality even over longer periods
  • the throttle device consists wholly or partly of refractory material and / or ceramic fibers and / or a high-temperature resistant metal.
  • the throttle device comprises a disc movably arranged in the feed channel in the longitudinal direction, whose cross-sectional shape largely corresponds to the shape of the clear
  • the throttle device comprises a rotatably mounted about the longitudinal axis of the feed channel rotary valve, by the rotation of the inlet opening can be more or less narrowed.
  • the supply channel is a channel for supplying fuel gas into the combustion chamber.
  • This variant makes it possible to make the supply channel compact, since the relatively large momentum of the inflowing fuel gas can be used to effectively suck flue gas.
  • FIG. 1 shows a longitudinal section through a preferred variant of the burner according to the invention.
  • the burner B which is arranged at the bottom A of a combustion chamber, comprises a first supply channel Z1 for supplying fuel 1 and a second supply channel Z2, via which combustion air 2 can be introduced into a combustion chamber.
  • a gas supply pipe R is arranged, which is connected to a pressurized fuel gas source (not shown) and via the fuel gas 3 in the first supply channel Z1 can be relaxed.
  • an opening C is provided which opens to the combustion chamber and can flow through the flue gas 4 from the combustion chamber to form a gas mixture 5 with the fuel gas.
  • the outlet opening F1 the gas mixture 5 can flow into the combustion chamber, wherein it communicates with combustion air 6, the second supply channel Z2 on the
  • Exit port F2 leaves, mixes and forms a reactive gas mixture.
  • a throttle device D is arranged, which comprises a disc P and a rod S firmly connected thereto.
  • the disk P whose cross section largely corresponds to the cross section of the first supply channel Z1, is movable in the vertical direction.
  • the rod S is movably mounted in the bottom of the burner B and guided by this to the outside. This makes it possible to manipulate the rod S from outside the burner B to thereby change the vertical position of the disc P in the first supply passage Z1.
  • the cross section of the inlet opening E and thus also the flow resistance for the in the first supply channel Z1 changes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

L'invention concerne un brûleur (B) servant à chauffer une chambre de combustion, comprenant un canal d'alimentation (Z1) servant à acheminer un combustible gazeux ou de l'air de combustion dans la chambre de combustion, ledit brûleur (B) présentant un orifice d'entrée (E) par lequel les gaz de fumées (4) peuvent pénétrer dans le canal d'alimentation (Z1). Afin de pouvoir régler le débit massique de gaz de fumée (4) pénétrant dans le canal d'alimentation (Z1), le brûleur (B) présente un dispositif d'étranglement (D) réglable.
PCT/EP2011/005541 2010-11-18 2011-11-03 Brûleur à recirculation de gaz de fumées réglable WO2012065691A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2013127511/06A RU2013127511A (ru) 2010-11-18 2011-11-03 Горелка с регулируемой рециркуляцией дымового газа
US13/885,404 US20130269576A1 (en) 2010-11-18 2011-11-03 Burner with adjustable flue gas recirculation
CA2816176A CA2816176A1 (fr) 2010-11-18 2011-11-03 Bruleur a recirculation de gaz de fumees reglable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010051806A DE102010051806A1 (de) 2010-11-18 2010-11-18 Brenner mit einstellbarer Rauchgasrezirkulation
DE102010051806.9 2010-11-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/048,960 Continuation US20140036257A1 (en) 2013-10-08 2013-10-08 Analyzer Instrument And Methods For Operating Same

Publications (2)

Publication Number Publication Date
WO2012065691A2 true WO2012065691A2 (fr) 2012-05-24
WO2012065691A3 WO2012065691A3 (fr) 2013-08-08

Family

ID=44925482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/005541 WO2012065691A2 (fr) 2010-11-18 2011-11-03 Brûleur à recirculation de gaz de fumées réglable

Country Status (5)

Country Link
US (1) US20130269576A1 (fr)
CA (1) CA2816176A1 (fr)
DE (1) DE102010051806A1 (fr)
RU (1) RU2013127511A (fr)
WO (1) WO2012065691A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013182214A1 (fr) * 2012-06-05 2013-12-12 Loesche Gmbh Procédé permettant de faire fonctionner un brûleur multigaz et brûleur multigaz
CN111911917A (zh) * 2020-07-15 2020-11-10 江苏迈阳环保有限公司 一种燃烧器用烟气循环装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10337526A1 (de) 2002-08-14 2004-02-26 Hamworthy Combustion Engineering Ltd. Brenner und Verfahren zum Verbrennen von Gas in einem Ofen

Family Cites Families (24)

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US2532740A (en) * 1948-02-10 1950-12-05 William H Speer Fuel burner provided with combustion gas recirculating means
US2648599A (en) * 1949-03-22 1953-08-11 Petro Chem Process Company Inc Heat control in vertical furnace by flue gas recirculation
US3161228A (en) * 1961-05-17 1964-12-15 Brodlin Willi Method of gasifying liquid fuels
US3402654A (en) * 1966-05-04 1968-09-24 American Air Filter Co Ventilation control
US3685740A (en) * 1969-10-29 1972-08-22 Air Reduction Rocket burner with flame pattern control
US3868211A (en) * 1974-01-11 1975-02-25 Aqua Chem Inc Pollutant reduction with selective gas stack recirculation
US3984196A (en) * 1974-05-28 1976-10-05 Kurt Zenkner Method and burner for combustion of waste air
US4551089A (en) * 1984-07-30 1985-11-05 Dowa Company, Ltd. Evaporation burner
US4728282A (en) * 1984-09-12 1988-03-01 Air, Ltd. Method and apparatus for conducting a substantially isothermal combustion process in a combustor
DE3666625D1 (en) * 1985-02-21 1989-11-30 Tauranca Ltd Fluid fuel fired burner
EP0271111B1 (fr) * 1986-12-11 1991-05-29 Dreizler, Walter Chaudière avec recyclage externe des gaz de combustion
US4995807A (en) * 1989-03-20 1991-02-26 Bryan Steam Corporation Flue gas recirculation system
US5135387A (en) * 1989-10-19 1992-08-04 It-Mcgill Environmental Systems, Inc. Nitrogen oxide control using internally recirculated flue gas
US5044932A (en) * 1989-10-19 1991-09-03 It-Mcgill Pollution Control Systems, Inc. Nitrogen oxide control using internally recirculated flue gas
AT396821B (de) * 1990-03-21 1993-12-27 Vaillant Gmbh Öl- oder gas-gebläsebrenner
US5073105A (en) * 1991-05-01 1991-12-17 Callidus Technologies Inc. Low NOx burner assemblies
US5284438A (en) * 1992-01-07 1994-02-08 Koch Engineering Company, Inc. Multiple purpose burner process and apparatus
DE4209221A1 (de) * 1992-03-21 1993-09-23 Deutsche Forsch Luft Raumfahrt Stickoxidarmer brenner
US5542840A (en) * 1994-01-26 1996-08-06 Zeeco Inc. Burner for combusting gas and/or liquid fuel with low NOx production
GB2316161A (en) * 1996-08-05 1998-02-18 Boc Group Plc Oxygen-fuel swirl burner
GB9709205D0 (en) * 1997-05-07 1997-06-25 Boc Group Plc Oxy/oil swirl burner
DE19725668C1 (de) * 1997-06-18 1998-10-29 Daimler Benz Ag Abgasrückführeinrichtung
US7104787B2 (en) * 2004-05-06 2006-09-12 Eclipse, Inc. Apparatus for radiant tube exhaust gas entrainment
DE202009002700U1 (de) * 2009-03-05 2009-04-30 Meku Metallverarbeitungs Gmbh & Co. Kg Mischeinrichtung für einen Brenner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10337526A1 (de) 2002-08-14 2004-02-26 Hamworthy Combustion Engineering Ltd. Brenner und Verfahren zum Verbrennen von Gas in einem Ofen

Also Published As

Publication number Publication date
RU2013127511A (ru) 2014-12-27
CA2816176A1 (fr) 2012-05-24
DE102010051806A1 (de) 2012-05-24
US20130269576A1 (en) 2013-10-17
WO2012065691A3 (fr) 2013-08-08

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