CN1105434A - 不对称的氧气/燃料燃烧器 - Google Patents

不对称的氧气/燃料燃烧器 Download PDF

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Publication number
CN1105434A
CN1105434A CN94112874A CN94112874A CN1105434A CN 1105434 A CN1105434 A CN 1105434A CN 94112874 A CN94112874 A CN 94112874A CN 94112874 A CN94112874 A CN 94112874A CN 1105434 A CN1105434 A CN 1105434A
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burner
oxygen
fuel
hollow component
oxidant
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CN94112874A
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CN1043921C (zh
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S·迪克
P·列考特
S·劳恩瑟
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LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Publication of CN1105434A publication Critical patent/CN1105434A/zh
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/2353—Heating the glass by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances
    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Gas Burners (AREA)

Abstract

氧气/燃料燃烧器包括至少一个输送氧化剂的 第一管状部件(2)和至少一个将燃料喷射进入氧化剂 气流的第二管状部件(3)，部件(3)相对于第一部件 (2)是不对称分布，使得火焰进气部的混合区域含有 氧化剂与燃料比低于理想化学计量配比值的部分。

Description

本发明涉及氧气-燃料燃烧器，打算将该燃烧器装在炉壁上，如玻璃炉，更具体地说是涉及低推力燃烧器（low-impulse burners）即在相对较低的气体排出速率下工作。
对污染物排放标准的严格限制，特别是在玻璃工业中，已经促使制造者使用适合于氧气燃烧的燃烧器（其氧化性混合物包含85%-100%的高的O2含量）。
申请人公司被下面的问题所困挠：如何改进这种燃烧器的性能，特别是在使用中等纯度的氧气（例如通过被称为VSA类型的吸附作用对空气进行分离而获得）和/或使用含氮气的天然气（例如在欧洲，Groningen类型天然气）时降低氮氧化物的产生。
申请人公司已经发现将不对称分布的总燃料气送进通过燃烧器输进的氧气流中可获得非常实质性的这种降低。
更准确地说，如果认为在燃烧器正常操作时，氧气和燃料气的总供给量之比是理想化学计量配比或基本上为理想化学计量配比，根据本发明的燃烧器的一个主要特征在于在燃烧器的相同的截面上供给气体的分布，在火焰的进气部，或者说在这个截面的至少一部分，供给的氧气与供给的燃烧气的比明显低于理想化学计量配比值。
还惊奇地观察到在火焰点火的进气部的这种不对称的供给分布提供并维持一个氮氧化物含量降低的区域，这是与供给分布在整个截面对称或基本对称的情况相比而言的。
还应当注意，当希望在局部获得还原性气氛（如在玻璃液的上面），这种能在火焰中产生亚化学计量配比区域的不对称结构也是适用的。
从下面对实施方案的描述会看出本发明的其它特点和优越性，描述是参照附图进行的，但不是意在对本发明进行任何限制，其中：
图1示意地表示一种已知燃烧器的正视图，它具有对称的燃料气供应分布。
图2是本发明燃烧器的另一个最佳实施方案的类似视图。
图3是表示图1和图2的燃烧器产生的氮氧化物的区别的对比图。
图4和图5表示本发明燃烧器的两个其它的实施方案。
可用本申请人公司的法国专利申请No.9311739中描述的方法来构造本发明的燃烧器。它可以包含三个主要部分，即由耐火材料制成的火焰口（glory hole）板，以可拆卸方式固定在火焰口与氧化剂管道相连的一侧的金属燃烧器主体，和至少一根以可拆卸并防漏的方式装在燃烧器主体上的燃料喷射管，燃料由此到达燃烧器的尾部。
图1图示了含有1根或多根对称分布在氧气流中的管子3的喷射管的情况，或更准确地说分布在氧气含量大于90%的在构成燃烧器主体的扩张部分的管套2中流动的氧化剂气流中。
在图示本发明第一个实施方案的图2中，可以看见输送燃料气（还原剂）的管子3不是对称分布在氧化剂流动的管套2中，而是集中在截面的一部分，在这种情况下是集中在管套2的截面的下半部分。因此应当明白，在这种情况下，在管子3的出口（火焰点火的进气部）氧化剂/还原剂比例将明显低于理想化学计量配比。
图3表示了标准化的氮氧化物含量（kg/MW）的简图，在横座标上，是氮气占所用氧气的含量的百分数，在纵座标上，是燃烧氮气含量约为2.5%的天然气的1MW燃烧器产生的氮氧化物重量（kg/MW），其天然气和氧气供给量分别大约为100Sm3/h和200Sm3/h。可以观察到使用根据图2的不对称分布的5根天然气管子时产生的NOX量明显低于图1的呈中心对称（“标准”）排列时产生的NOX量。
可以设计出其它的不对称结构。例如可以设计成如图4所示，它表示了具有类似于图1的管子3的对称分布，现在变为具有不同截面的输送燃料气的管子3和3a。还可以如图5所示，采用单根燃料管，将它高度偏心地置于输送氧化剂的管套2中。
本领域熟练技术人员在不背离下面权利要求书中所限定的本发明范围前提下可以设计出其它的实施方案。

Claims (3)

1、氧气/燃料燃烧器包括至少一个输送氧化剂的第一空心部件(2)和至少一个将燃料喷射进入氧化剂气流的第二空心部件(3)，其特征在于至少将第二空心部件(3)的出口布置成相对于第一空心部件(2)呈不对称分布，使得火焰进气部的混合区域含有氧化剂与燃料比低于理想化学计量配比值的部分。
2、根据权利要求1的燃烧器，其特征在于它包含多个不对称地布置在第一部件内的空心部件（3）。
3、根据权利要求1的燃烧器，其特征在于第二部件包含多个截面不同的管状元件（3，3a）。
CN94112874A 1993-11-30 1994-11-30 不对称的氧气/燃料燃烧器 Expired - Fee Related CN1043921C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314305 1993-11-30
FR9314305A FR2713312B1 (fr) 1993-11-30 1993-11-30 Brûleur oxycombustible agencé pour réduire la formation d'oxydes d'azote et particulièrement destiné aux fours de verrerie.

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CN1105434A true CN1105434A (zh) 1995-07-19
CN1043921C CN1043921C (zh) 1999-06-30

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US (1) US5545033A (zh)
EP (1) EP0655581B1 (zh)
JP (1) JPH07310907A (zh)
CN (1) CN1043921C (zh)
CA (1) CA2136782A1 (zh)
DE (1) DE69426750T2 (zh)
FR (1) FR2713312B1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103380328A (zh) * 2011-01-21 2013-10-30 法国德西尼布公司 一种燃烧器和包含这种燃烧器的燃烧炉

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ES2136177T3 (es) * 1993-10-01 1999-11-16 Air Liquide Quemador y utilizacion del mismo en un horno de vidrio.
DE4447605C2 (de) * 1994-08-30 1996-12-19 Hotwork Int Sa Industrieofen mit einer U-Flammenwanne
US5934893A (en) * 1996-01-05 1999-08-10 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Burner and utilization of such burner in glass furnace
DE19615910B4 (de) * 1996-04-22 2006-09-14 Alstom Brenneranordnung
US5975886A (en) * 1996-11-25 1999-11-02 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Combustion process and apparatus therefore containing separate injection of fuel and oxidant streams
US6186217B1 (en) 1998-12-01 2001-02-13 Howmet Research Corporation Multipiece core assembly
FR2802615B1 (fr) * 1999-12-07 2002-02-15 Atofina Injecteur utilisable dans un dispositif pour la combustion de produits corrosifs
US20090217669A1 (en) * 2003-02-05 2009-09-03 Young Kenneth J Fuel nozzles
GB0302721D0 (en) * 2003-02-05 2003-03-12 Rolls Royce Plc Fuel nozzles
SE529467C2 (sv) * 2005-06-14 2007-08-14 Aga Ab Tätning för brännare
US8696348B2 (en) * 2006-04-26 2014-04-15 Air Products And Chemicals, Inc. Ultra-low NOx burner assembly
US20100159409A1 (en) * 2006-06-05 2010-06-24 Richardson Andrew P Non-centric oxy-fuel burner for glass melting systems
US9587823B2 (en) * 2009-03-25 2017-03-07 Wallace Horn Laminar flow jets

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US3856457A (en) * 1972-12-29 1974-12-24 Air Prod & Chem Burner of the oxy-fuel type
DE2951796C2 (de) * 1978-12-21 1982-11-04 Kobe Steel, Ltd., Kobe, Hyogo Brenner für gasförmige oder flüssige Brennstoffe für minimale NO↓x↓-Emission
GB2136556A (en) * 1983-03-18 1984-09-19 Shell Int Research Solid fuel burners
SU1179023A1 (ru) * 1983-11-29 1985-09-15 Inst Gaza An Ussr Газовая горелка
GB8720468D0 (en) * 1987-08-29 1987-10-07 Boc Group Plc Flame treatment method
US4969814A (en) * 1989-05-08 1990-11-13 Union Carbide Corporation Multiple oxidant jet combustion method and apparatus
FR2667928B1 (fr) * 1990-10-16 1995-07-28 Air Liquide Procede de chauffe d'une enceinte thermique.
US5329866A (en) * 1993-09-03 1994-07-19 The Babcock & Wilcox Company Combined low NOx burner and NOx port

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103380328A (zh) * 2011-01-21 2013-10-30 法国德西尼布公司 一种燃烧器和包含这种燃烧器的燃烧炉
CN103380328B (zh) * 2011-01-21 2016-04-06 法国德西尼布公司 一种燃烧器和包含这种燃烧器的燃烧炉

Also Published As

Publication number Publication date
CA2136782A1 (fr) 1995-05-31
EP0655581B1 (fr) 2001-02-28
DE69426750D1 (de) 2001-04-05
EP0655581A1 (fr) 1995-05-31
FR2713312A1 (fr) 1995-06-09
CN1043921C (zh) 1999-06-30
DE69426750T2 (de) 2001-07-05
US5545033A (en) 1996-08-13
FR2713312B1 (fr) 1996-01-12
JPH07310907A (ja) 1995-11-28

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