WO2015007252A1 - Procédé de combustion de gaz dans des fours industriels et brûleur pour réaliser ce procédé - Google Patents

Procédé de combustion de gaz dans des fours industriels et brûleur pour réaliser ce procédé Download PDF

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Publication number
WO2015007252A1
WO2015007252A1 PCT/CZ2013/000125 CZ2013000125W WO2015007252A1 WO 2015007252 A1 WO2015007252 A1 WO 2015007252A1 CZ 2013000125 W CZ2013000125 W CZ 2013000125W WO 2015007252 A1 WO2015007252 A1 WO 2015007252A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
nozzle
burner
input
flow
Prior art date
Application number
PCT/CZ2013/000125
Other languages
English (en)
Inventor
Josef CHMELAŘ
Petr JANDÁČEK
Petr VOJTĚCH
Original Assignee
Flammatec, Spol. S R.O.
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 Flammatec, Spol. S R.O. filed Critical Flammatec, Spol. S R.O.
Priority to PCT/EP2014/065171 priority Critical patent/WO2015007743A1/fr
Publication of WO2015007252A1 publication Critical patent/WO2015007252A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • H05B3/345—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles knitted fabrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F23M5/025—Casings; Linings; Walls characterised by the shape of the bricks or blocks used specially adapted for burner openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5678—Heating or ventilating devices characterised by electrical systems
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B23/00—Flat warp knitting machines
    • D04B23/12—Flat warp knitting machines with provision for incorporating unlooped wefts extending from selvedge to selvedge
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/06—Needle bars; Sinker bars
    • D04B27/08—Driving devices therefor
    • 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
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/029—Heaters specially adapted for seat warmers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • This invention concerns method of gas combustion, for example of natural gas or propane, in industrial furnaces, especially glass furnaces or furnaces for metal melting, by the help of oxygen or air and further the invention solves construction of the burner for realization of this method.
  • Combustion systems consist of burners which are placed in the furnace with simultaneous input of the fuel gas and additional gas in the form of oxygen or air. Both these gases react at the temperature over the ignition temperature of the fuel gas, burn and herewith add energy to the process.
  • burners which are placed in the furnace with simultaneous input of the fuel gas and additional gas in the form of oxygen or air. Both these gases react at the temperature over the ignition temperature of the fuel gas, burn and herewith add energy to the process.
  • the aim of this invention is to solve above mentioned complications and to design new way suitable for combustion of fuel gas, for example natural gas or propane, by the help of additional gas, preferably oxygen, enabling accurate setting of combustion process with high radiation efficiency and low NOx emission.
  • additional gas preferably oxygen
  • an invention which is the way of gas combustion in industrial furnaces, especially glass furnaces or furnaces for metal melting, by the help of multi nozzle burner with controllable regulation of the flow of fuel gas nozzles as well as of additional gas, where the essence is that the fuel gas is input into cavity of the burner through at least one central gas nozzle with simultaneous input into of two independent flows of the additional gas in the way that the fuel gas is surrounded by concentric flow of primary additional gas which is then surrounded by concentric flow of secondary additional gas.
  • the fuel gas is input into the burner in velocity (Vp) ranging between values 1 to 30 m/s
  • the primary additional gas is input into the burner in controllable capacity amount, which ranges between 10 to 90 weight % necessary for stoichiometric combustion of the fuel gas, in velocity (V 0 i), whose value is given by relation
  • the secondary additional gas is input into the burner in controllable capacity amount, which ranges from 90 to 10 weight % necessary for stoichiometric combustion of the fuel gas, in velocity (V 02 ), whose value is given by relation
  • primary additional gas and secondary additional gas are continuously controllable and as the fuel gas is used methane or propane in mixture with other hydrocarbons and gases and as the additional gas is used oxygen, air or another oxidant with oxygen content over 80 weight %.
  • Next essence of the invention is a burner for gas combustion in industrial furnaces, especially glass furnaces or furnaces for metal melting, containing an injector and a shaped piece of the burner, which is fixed on outfall of the injector, where the injector comprises either from an inner gas nozzle equipped on an infall with a main regulation valve of input of the fuel gas or from the inner gas nozzle and an insertion gas nozzle equipped with an auxiliary valve, whereas the inner gas nozzle is surrounded by a first concentric nozzle equipped on infall with a regulation valve of input of the primary additional gas and the first concentric nozzle is around the perimeter surrounded by a second concentric nozzle, which is equipped with a regulation valve of input of secondary additional gas and which forms the body of the injector.
  • the regulation valve of inflow of the primary additional gas and the regulation valve of inflow of the secondary additional gas are via a control unit of the additional gas connected into a block of control of combustion process where, also via a control unit of the fuel gas, is connected the main regulation valve of inflow of the fuel gas with the auxiliary regulation valve, whereas the block of the control of combustion process is connected to an evaluating and control block equipped with control elements.
  • fig. 1 is lengthwise schematic cut of basic design of the burner
  • fig.2 is lengthwise schematic cut of an alternative design of the burner with two gas nozzles
  • fig.3 is scheme of a flame structure in basic design of the burner according to the fig.1
  • fig.4 is lengthwise schematic cut of the alternative design of the burner from the fig.2 with illustrated connection of the regulation valves of particular nozzles to the block of control and operating of combustion process.
  • the burner consists of an injector 1 and a shaped piece of the burner 2, which is fixed on outfall of the injector and is formed in way that the diameter of its inner cylindrical cavity 21 basically corresponds with outer diameter of the body of the injector 1.
  • the injector 1 consists of three coaxially placed pipe nozzles H , 12 and 13.
  • the inner gas nozzle 11 is equipped on infall with a main regulation valve HI of inlet of the fuel gas and is surrounded by a first concentric nozzle 12 equipped on infall with a regulation valve 121 of inlet of the primary additional gas.
  • This first concentric nozzle 12 is around its perimeter surrounded by a second concentric nozzle 13 which is equipped with a regulation valve 131 of inlet of the secondary additional gas and which forms the body of the injector 1.
  • both regulation valves 121 and 131 are via a control unit 4 of the additional gas connected to a block 5 of control of combustion process, where is also via a control unit 6 of the fuel gas connected the main regulation valve HI of inlet of the fuel gas.
  • the block 5 of the control of the combustion process is then connected to an evaluation and control block 7, which is equipped with non-illustrated control units and preferably contains computer.
  • the injector 1 is also equipped with an additional insertion gas nozzle 14 equipped with an auxiliary regulation valve 141, which is then connected via the control unit 6 of the fuel gas into the block 5 of the control of combustion process.
  • the injector 1 is then made in the way to have between a flow crosscut (0) of the fuel gas, given in case of basic design of the burner by a flow crosscut (0i) of the inner gas nozzle 11 and in case of alternative design of the burner or by sum of the flow crosscut (0i> of inner gas nozzle 11 and a flow crosscut (0 2 ) of the insertion gas nozzle 14 and a flow crosscut ( ⁇ ) of the additional gas given by sum of a flow crosscut (0i) of the first concentric nozzle 12 and a flow crosscut (0 2 ) of the second concentric nozzle 13 valid relation
  • the fuel gas is blown at velocity VP. ranging between 1 to 30 m/s from the inner gas nozzle 11 into the central part of the cavity 21 of the shaped piece 2 of the burner where it is mixed with the primary additional gas inlet from the first concentric nozzle 12 at outflow velocity Q! whose value is given by relation whereas the primary additional gas is into the cavity 21 inlet in controllable capacity amount, which ranges between 10 to 90 weight % necessary for stoichiometric combustion of the fuel gas.
  • Continually controllable infalls of the fuel gas into the nozzles 11, 12, 13, 14 equipped with the regulation valves HI, 111, 131, 141 enable accurate and gentle setting of the kinetic of the flame and enable its sufficient controllability with possibility of influence of NOx emission.
  • the fuel gas is according to the area of use of the burner preferably used methane or propane in mixture with other hydrocarbons and gases.
  • the additional gas is preferably used oxygen, air or another oxidant with oxygen content over 80 weight %.
  • gas combustion for example of natural gas or propane, namely by the help of oxygen or air, and the burner for performance of this method is aimed for use in industrial furnaces, above all glass furnaces or furnaces for metal melting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

La présente invention concerne un procédé de combustion de gaz dans des fours industriels faisant appel à un brûleur pourvu d'un injecteur (1) et d'une pièce façonnée (2), l'injecteur (1) consistant soit en une buse à gaz (11) interne équipée d'une valve (111) de régulation principale soit en la buse à gaz (11) interne et en une buse à gaz (14) d'insertion équipée d'une valve (141) de régulation auxiliaire, la buse à gaz (11) interne étant entourée d'une première buse (12) concentrique équipée d'une valve (121) de régulation pour l'admission d'un premier gaz enrichi en oxygène et la première buse concentrique (12) étant entourée d'une seconde buse concentrique (13) qui est équipée d'une valve (131) de régulation pour l'admission d'un gaz enrichi en oxygène secondaire.
PCT/CZ2013/000125 2013-07-15 2013-10-09 Procédé de combustion de gaz dans des fours industriels et brûleur pour réaliser ce procédé WO2015007252A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/065171 WO2015007743A1 (fr) 2013-07-15 2014-07-15 Procédé de combustion de gaz dans des fours industriels et brûleur permettant la mise en oeuvre de ce procédé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2013562 2013-07-15
CZPV2013-562 2013-07-15

Publications (1)

Publication Number Publication Date
WO2015007252A1 true WO2015007252A1 (fr) 2015-01-22

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ID=49488439

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CZ2013/000125 WO2015007252A1 (fr) 2013-07-15 2013-10-09 Procédé de combustion de gaz dans des fours industriels et brûleur pour réaliser ce procédé
PCT/EP2014/065171 WO2015007743A1 (fr) 2013-07-15 2014-07-15 Procédé de combustion de gaz dans des fours industriels et brûleur permettant la mise en oeuvre de ce procédé

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/065171 WO2015007743A1 (fr) 2013-07-15 2014-07-15 Procédé de combustion de gaz dans des fours industriels et brûleur permettant la mise en oeuvre de ce procédé

Country Status (1)

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WO (2) WO2015007252A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230184427A1 (en) 2020-05-19 2023-06-15 Flammatec, Spol. S R.O. Method and burner of hydrogen combustion in industrial furnace, especially in a glass furnace or a furnace for metal melting, by means of a multi nozzle burner

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299929A (en) 1993-02-26 1994-04-05 The Boc Group, Inc. Fuel burner apparatus and method employing divergent flow nozzle
CZ279526B6 (cs) 1992-03-30 1995-05-17 Air Products And Chemicals, Inc. Zařízení k vyvíjení plamene z kyslíku a paliva s nízkým obsahem NOx a způsob k provozu tohoto zařízení
EP0687853A2 (fr) 1994-06-13 1995-12-20 Praxair Technology, Inc. Combustion étagée pour la réduction d'oxydes d'azote
EP0762050A2 (fr) 1995-09-05 1997-03-12 Air Products And Chemicals, Inc. Brûleur à combustion étagée à faible émission de NOx pour le chauffage contrÔlé par rayonnement des fours à haute température
US5904475A (en) * 1997-05-08 1999-05-18 Praxair Technology, Inc. Dual oxidant combustion system
EP0989362A1 (fr) * 1998-09-22 2000-03-29 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de chauffage d'un four
US6190158B1 (en) 1998-12-30 2001-02-20 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Combustion process and its uses for the production of glass and metal
EP1236691A2 (fr) * 2001-03-02 2002-09-04 The Boc Group, Inc. Procédé et appareil pour la fusion de verre utilsant de brûleurs à l'oxygène-carburant montés dans la voûte
US6685463B2 (en) 1999-12-16 2004-02-03 Bloom Engineering Co., Inc. Air and fuel staged burner
WO2007048429A1 (fr) 2005-10-28 2007-05-03 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Bruleur a oxygene/combustible a longueur de flamme variable
EP2405197A1 (fr) * 2010-07-05 2012-01-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de combustion à maintenance réduire approprié à l'utilisation dans un avant-creuset de four à verre

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6659762B2 (en) * 2001-09-17 2003-12-09 L'air Liquide - Societe Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxygen-fuel burner with adjustable flame characteristics

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ279526B6 (cs) 1992-03-30 1995-05-17 Air Products And Chemicals, Inc. Zařízení k vyvíjení plamene z kyslíku a paliva s nízkým obsahem NOx a způsob k provozu tohoto zařízení
US5299929A (en) 1993-02-26 1994-04-05 The Boc Group, Inc. Fuel burner apparatus and method employing divergent flow nozzle
EP0687853A2 (fr) 1994-06-13 1995-12-20 Praxair Technology, Inc. Combustion étagée pour la réduction d'oxydes d'azote
EP0762050A2 (fr) 1995-09-05 1997-03-12 Air Products And Chemicals, Inc. Brûleur à combustion étagée à faible émission de NOx pour le chauffage contrÔlé par rayonnement des fours à haute température
US5904475A (en) * 1997-05-08 1999-05-18 Praxair Technology, Inc. Dual oxidant combustion system
EP0989362A1 (fr) * 1998-09-22 2000-03-29 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de chauffage d'un four
US6190158B1 (en) 1998-12-30 2001-02-20 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Combustion process and its uses for the production of glass and metal
US6685463B2 (en) 1999-12-16 2004-02-03 Bloom Engineering Co., Inc. Air and fuel staged burner
EP1236691A2 (fr) * 2001-03-02 2002-09-04 The Boc Group, Inc. Procédé et appareil pour la fusion de verre utilsant de brûleurs à l'oxygène-carburant montés dans la voûte
WO2007048429A1 (fr) 2005-10-28 2007-05-03 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Bruleur a oxygene/combustible a longueur de flamme variable
EP2405197A1 (fr) * 2010-07-05 2012-01-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de combustion à maintenance réduire approprié à l'utilisation dans un avant-creuset de four à verre

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