SU596176A3 - Method of fuel combustion - Google Patents

Method of fuel combustion

Info

Publication number
SU596176A3
SU596176A3 SU742001917A SU2001917A SU596176A3 SU 596176 A3 SU596176 A3 SU 596176A3 SU 742001917 A SU742001917 A SU 742001917A SU 2001917 A SU2001917 A SU 2001917A SU 596176 A3 SU596176 A3 SU 596176A3
Authority
SU
USSR - Soviet Union
Prior art keywords
combustion
streams
rich
air
fuel
Prior art date
Application number
SU742001917A
Other languages
Russian (ru)
Inventor
Такахаси Ясуро
Фудзима Юкихиса
Ямамото Хисао
Original Assignee
Мицубиси Дзюкогио Кабусики Кайся (Фирма)
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 Мицубиси Дзюкогио Кабусики Кайся (Фирма) filed Critical Мицубиси Дзюкогио Кабусики Кайся (Фирма)
Application granted granted Critical
Publication of SU596176A3 publication Critical patent/SU596176A3/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D17/00Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F23D17/002Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D23/00Assemblies of two or more burners

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)

Description

Изобретение касаетс  способов сжигани  топлива и может быть исиользовано дл  снижепи  концентрации окислов азота в газообразных продуктах сгорани , в частности, в котельных агрегатах, оборудованных горелка .ми Известны способы сжигани  топлива в котельных агрегатах, в которых часть горелок котла работает с недостатком воздуха .а остальна  часть -с избытком его 1. Однако такие способы сжигани  обладают сложностью регулировани  соотношени  расхода воздуха на горелки и усложн ют услови  эксплуатации агрегата. Кроме того, ухудшаетс  качество сжигани  топлива вследствие разрыва между основным и дополнительным факелами горелок, в результате чего повышаетс  содержание сажи и окислов азота в продуктах сгорани . Также известны способы сжигани  топлива, осуш,ествл емые в горелке нутем одновременной подачи компонентов горени  двум  потоками в зону сжигани , один из которых  вл етс  богатой топливовоздушной смесью 2. Недостатками таких способов сжигани  топлива , когда все топливо сгорает на первой стадии, а затем продукты сгорани  догорают в потоке пр моточного воздуха,  вл етс  высока  температура пламени, а также длительное врем  пребывани  в зоне горени , что приводит к повышенному содержанию окислов азота в продуктах сгорани . Цель изобретени -снижение содержани  окислов азота в продуктах сгорани . Это достигаетс  тем, что богатую смесь подают с а 0,5-0,8, а вторым потоком подают бедную топливовоздушную смесь с « 1,3-1,6, где л - коэффициент избытка воздуха. Кроме того, в потоки бедной и богатой смесей могут быть введены инертные газы, а также может впрыскиватьс  инертна  жидкость , например вода. По предложенному способу компоненты горени  в зону сжигани  подают одновременно в виде богатой и бедной смесей, полученных путем предварительного перемешивани  компонентов горени  внутри горелки, причем оптимальный коэффициент избытка воздуха богатой смеси составл ет 0,5-0,8, а бедной - 1,3-1,6, Кроме того, в потоки могут вводитьс  инертные компоненты либо впрыскиватьс  инертна  жидкость. Предварительное смешение и одновременна  подача двух типов смесей в зону горени  способствует уменьшению времени пребывани The invention relates to methods for burning fuel and can be used to reduce the concentration of nitrogen oxides in combustion gases, in particular, in boiler units equipped with a burner. There are known methods for burning fuel in boiler units, in which part of the boiler burners work with lack of air. part with an excess of 1. However, such combustion methods have difficulty adjusting the ratio of air flow to the burners and complicate the operating conditions of the unit. In addition, the quality of combustion is deteriorated due to the gap between the main and additional torches of the burners, resulting in an increase in the content of soot and nitrogen oxides in the combustion products. Also known are methods of burning fuel, dried in a burner by simultaneously feeding two components to the combustion zone simultaneously, one of which is rich in air-fuel mixture 2. The disadvantages of such methods of burning fuel are when all the fuel burns in the first stage and then the products Combustion burns out in a stream of flowing air; the flame temperature is high, as well as a long residence time in the combustion zone, which leads to an increased content of nitrogen oxides in the combustion products. The purpose of the invention is to reduce the content of nitrogen oxides in the combustion products. This is achieved by the fact that the rich mixture is fed from a 0.5-0.8, and the second stream serves a lean air-fuel mixture from 1.3-1.6, where l is the coefficient of excess air. In addition, inert gases can be introduced into lean and rich mixtures, and an inert liquid, such as water, can also be injected. In the proposed method, the combustion components are fed to the combustion zone at the same time as rich and lean mixtures obtained by pre-mixing the combustion components inside the burner, the optimum excess air ratio of the rich mixture being 0.5-0.8, and the poor ratio 1.3. 1.6. In addition, inert components may be introduced into the streams or an inert liquid may be injected. Pre-mixing and simultaneous feeding of two types of mixtures to the combustion zone helps to reduce the residence time.

продуктов в зоне горени , а также снижает температуру факела, что способствует уменьшению содержани  окислов азота в продуктах сгорани .products in the combustion zone, and also reduces the temperature of the flare, which helps to reduce the content of nitrogen oxides in the combustion products.

Claims (3)

1. Способ сжигани  топлива путем одновременной подачи компонентов горени  двум  потоками в зону сжигани , один из которых  вл етс  богатой топливовоздушной смесью, отличающийс  тем, что, с целью снижени  содержани  окислов азота в продуктах сгорани , богатую смесь подают с а 0,,8, а второй1. A method of burning fuel by simultaneously feeding the combustion components in two streams to the combustion zone, one of which is rich in air-fuel mixture, characterized in that, in order to reduce the content of nitrogen oxides in combustion products, the rich mixture is served with a0, a, 8, and second поток имеет бедную топливовоздушную смесь с а 1,3-1,6, где а - коэффициент избытка воздуха.the stream has a poor air-fuel mixture with a 1.3-1.6, where a is the excess air ratio. 2.Способ по п. 1, отличающийс  тем, что в потоки ввод т инертные газы.2. A method according to claim 1, characterized in that inert gases are introduced into the streams. 3.Способ по п. 1, отличающийс  тем, что в потоки- впрыскивают инертную жидкость, например воду.3. A method according to claim 1, characterized in that an inert liquid, for example water, is injected into the streams. Источники информации, прин тые во внимание при экспертизе:Sources of information taken into account in the examination: 1. Электротехника и энергетика.-Реф.ж-л, М., «ВИНИТИ, 1971, № 1, с. 8, 6Т52.1. Electrical engineering and power engineering. - Ref.zhl, M., “VINITI, 1971, No. 1, p. 8, 6T52. 2. Авторское свидетельство № 457845, кл. F 23 D 13/00, 1970.2. Copyright certificate № 457845, cl. F 23 D 13/00, 1970.
SU742001917A 1973-02-24 1974-02-22 Method of fuel combustion SU596176A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48022339A JPS49111235A (en) 1973-02-24 1973-02-24

Publications (1)

Publication Number Publication Date
SU596176A3 true SU596176A3 (en) 1978-02-28

Family

ID=12079927

Family Applications (1)

Application Number Title Priority Date Filing Date
SU742001917A SU596176A3 (en) 1973-02-24 1974-02-22 Method of fuel combustion

Country Status (11)

Country Link
US (1) US3907488A (en)
JP (1) JPS49111235A (en)
CA (1) CA1027842A (en)
CH (1) CH568526A5 (en)
DE (1) DE2408635C3 (en)
ES (2) ES423579A1 (en)
FR (1) FR2219384B1 (en)
GB (1) GB1445795A (en)
IT (1) IT1015821B (en)
NL (1) NL167510C (en)
SU (1) SU596176A3 (en)

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US4173118A (en) * 1974-08-27 1979-11-06 Mitsubishi Jukogyo Kabushiki Kaisha Fuel combustion apparatus employing staged combustion
JPS5143235A (en) * 1974-10-09 1976-04-13 Matsushita Electric Ind Co Ltd NENSHO SOCHI
US4050879A (en) * 1974-11-18 1977-09-27 Mitsubishi Jukogyo Kabushiki Kaisha Fuel combustion apparatus
JPS51106332U (en) * 1975-02-24 1976-08-25
JPS5825927B2 (en) * 1975-04-11 1983-05-31 川崎重工業株式会社 oil burner
JPS51145931A (en) * 1975-06-10 1976-12-15 Hitachi Zosen Corp Two stage combustion process for restraint of nox
JPS5214228A (en) * 1975-07-24 1977-02-03 Osaka Gas Co Ltd Conbustion system to restrain volume of emission of nitrogen oxide
JPS5274930A (en) * 1975-12-19 1977-06-23 Hitachi Zosen Corp Low-no# two-step combustion method by spraying water into combustion z one
JPS52151941A (en) * 1976-06-11 1977-12-16 Osaka Gas Co Ltd Nitrogen oxide generation control burner
JPS5629521Y2 (en) * 1976-07-14 1981-07-14
DE2655321C3 (en) * 1976-12-07 1979-12-20 Basf Ag, 6700 Ludwigshafen Process for the production of low-soot and sulfur-free combustion gases
US4095928A (en) * 1977-02-14 1978-06-20 Southern California Edison Company Method of reducing nitrogen oxide emissions in flue gas
SE413935B (en) * 1977-03-18 1980-06-30 Aga Ab METHOD AND APPARATUS FOR THE ADDITION OF OBJECTIVE IN THE FUEL COMBUSTION
CH626976A5 (en) * 1978-01-03 1981-12-15 Rawyler Ernst Ehrat
US4496306A (en) * 1978-06-09 1985-01-29 Hitachi Shipbuilding & Engineering Co., Ltd. Multi-stage combustion method for inhibiting formation of nitrogen oxides
JPS5950013B2 (en) * 1978-08-22 1984-12-06 茂盛 大谷 Burner. Two-fluid maximum capacity burner combining units
DE2926278C2 (en) * 1979-06-29 1987-04-23 Ruhrgas Ag, 4300 Essen Method for operating a burner and burner for carrying out the method
GB2076135B (en) * 1980-04-22 1984-04-18 Mitsubishi Heavy Ind Ltd Pulverized fuel firing apparatus
US4343605A (en) * 1980-05-23 1982-08-10 Browning Engineering Corporation Method of dual fuel operation of an internal burner type ultra-high velocity flame jet apparatus
NL8005717A (en) * 1980-10-16 1982-05-17 Nefit Nv HEATING BOILER AND A PROCESS FOR CONTROLLING COMBUSTION IN SUCH A BOILER.
FR2505983B1 (en) * 1981-05-13 1986-07-11 Jean Lamy DEFLECTOR APPARATUS FOR IMPROVING THE QUALITY OF THE COMBUSTION PROVIDED BY A BURNER, PARTICULARLY FOR A BOILER OR THE LIKE
US4599100A (en) * 1985-04-01 1986-07-08 Ppg Industries, Inc. Melting glass with port and melter burners for NOx control
US4614491A (en) * 1985-10-07 1986-09-30 Welden David P Multiple burner control apparatus
DE3826279C2 (en) * 1987-08-04 1994-08-25 Vaillant Joh Gmbh & Co Gas burner with a burner chamber
AT397569B (en) * 1988-03-09 1994-05-25 Vaillant Gmbh BURNER
GB8813237D0 (en) * 1988-06-04 1988-07-06 Hepworth Heating Ltd Gas burners
CN1017744B (en) * 1988-12-26 1992-08-05 株式会社日立制作所 Low nitrogen oxide boiler
GB2237104B (en) * 1989-10-20 1993-07-21 Bowin Designs Pty Ltd Gas burner
JP2742150B2 (en) * 1991-05-31 1998-04-22 株式会社日立製作所 Combustors and combustion equipment
US5271729A (en) * 1991-11-21 1993-12-21 Selas Corporation Of America Inspirated staged combustion burner
AU3535593A (en) * 1992-03-26 1993-09-30 Boc Group, Inc., The Method for combusting a fuel-oxidant mixture
DE4408256A1 (en) * 1994-03-11 1995-09-14 Abb Management Ag Method and device for flame stabilization of premix burners
DE4441641A1 (en) * 1994-11-23 1996-05-30 Abb Management Ag Combustion chamber with premix burners
DE19509219C2 (en) * 1995-03-17 2003-07-24 Ulrich Dreizler Process or burner head for burning fuel gas
PL178691B1 (en) * 1996-02-23 2000-06-30 Laziska Elektrownia Method of reducing content of nitrogen oxides in combustion gas from an industrial boilerfurnace and burner suitable for implementation of that method
US6652265B2 (en) 2000-12-06 2003-11-25 North American Manufacturing Company Burner apparatus and method
US6929469B2 (en) * 2002-02-28 2005-08-16 North American Manufacturing Company Burner apparatus
ATE388374T1 (en) * 2005-12-13 2008-03-15 Schwank Gmbh HEATING DEVICE AND METHOD FOR OPERATING THE SAME
US8703064B2 (en) 2011-04-08 2014-04-22 Wpt Llc Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions
CN112361331B (en) * 2019-10-11 2022-04-29 中国石油大学(华东) Plateau type fuel oil burner with high injection smoke and design method
NL2024101B1 (en) * 2019-10-25 2021-07-19 Bekaert Combustion Tech Bv Surface stabilized fully premixed gas premix burner for burning hydrogen gas, and method for starting such burner

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Also Published As

Publication number Publication date
NL7402554A (en) 1974-08-27
GB1445795A (en) 1976-08-11
CA1027842A (en) 1978-03-14
ES446488A1 (en) 1977-06-16
DE2408635C3 (en) 1982-04-15
IT1015821B (en) 1977-05-20
NL167510B (en) 1981-07-16
FR2219384A1 (en) 1974-09-20
US3907488A (en) 1975-09-23
DE2408635A1 (en) 1974-09-19
FR2219384B1 (en) 1976-10-08
NL167510C (en) 1981-12-16
JPS49111235A (en) 1974-10-23
DE2408635B2 (en) 1981-08-13
ES423579A1 (en) 1977-01-01
CH568526A5 (en) 1975-10-31

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