SU374488A1 - METHOD OF REGULATION OF GAS FLOW IN BURNERS - Google Patents

METHOD OF REGULATION OF GAS FLOW IN BURNERS

Info

Publication number
SU374488A1
SU374488A1 SU1431960A SU1431960A SU374488A1 SU 374488 A1 SU374488 A1 SU 374488A1 SU 1431960 A SU1431960 A SU 1431960A SU 1431960 A SU1431960 A SU 1431960A SU 374488 A1 SU374488 A1 SU 374488A1
Authority
SU
USSR - Soviet Union
Prior art keywords
gas
burners
gas flow
regulation
flow rate
Prior art date
Application number
SU1431960A
Other languages
Russian (ru)
Inventor
В. В. Лепорский Р. Д. Куземко В. Д. Рудман Р. П. Черн вский Ждановский металлургический институт Е. А. Капустин
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 filed Critical
Priority to SU1431960A priority Critical patent/SU374488A1/en
Application granted granted Critical
Publication of SU374488A1 publication Critical patent/SU374488A1/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/10Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Vertical, Hearth, Or Arc Furnaces (AREA)

Description

1one

Известен способ регулировани  расхода сжатого природного газа (или воздуха), поступающего к горелкам мартеновских печей изменением проходных сечений вентилем, клапаном или задвижкой. При этом поддержка различных тепловых нагрузок по ходу мартеновской плавки вызывает необходимость измен ть расход газа в несколько раз.There is a method of controlling the flow rate of compressed natural gas (or air) supplied to the burners of open-hearth furnaces by changing the flow areas with a valve, valve or valve. At the same time, the support of various heat loads during the open-hearth smelting makes it necessary to change the gas flow rate several times.

Однако в результате дросселировани  потока 3 регулирующем клапане, при умеренных и малых тепловых нагрузках тер етс  до 50- 80% потенциальной энергии сжатого газа. При давлении в подвод щем коллекторе в 8- 9 атм, перед соплом горелки большую часть плавки давление составл ет всего лишь 3- 5 атм., а в отдельные периоды снижаетс  до 2-2,5 атм.However, as a result of throttling of the flow 3 of the control valve, at moderate and low heat loads up to 50-80% of the potential energy of the compressed gas is lost. With a pressure in the inlet manifold of 8-9 atm, in front of the burner nozzle most of the melting pressure is only 3-5 atm., And in some periods it decreases to 2-2.5 atm.

Использование пол-ного давлени  сжатого природного газа дл  формировани  факела исключаетс . При этом кинетическа  энерги  истечени  газов из сопла горелки уменьшаетс  в 2--3 раз именно в те периоды плавки, когда особенно желательно иметь жесткий дальнобойный факел.The use of full pressure of compressed natural gas to form a plume is excluded. At the same time, the kinetic energy of gas exhaustion from the burner nozzle is reduced by 2--3 times at precisely those periods of melting when it is particularly desirable to have a rigid long-range torch.

Цель изобретени  - полное исключение энергетических потерь сжатого газа в регулирующих устройствах и сохранение высокой кинетической энергии факела.The purpose of the invention is the complete elimination of the energy losses of compressed gas in control devices and the preservation of the high kinetic energy of the torch.

Предлагаемое изобретение отличаетс  тем, что вместо механического регулировани  используют термическое регулирование расхода сжатого газа, исключающее дросселированиеThe present invention is characterized in that, instead of mechanical adjustment, thermal regulation of the flow of compressed gas is used, eliminating throttling.

газов, а следовательно, и потери давлени  перед соплами горелки. Сопла горелки имеют диаметр, рассчитанный на определенный расход газа, посто нный после достпл :ени  критического давлени , например, 9,5 атл1. Газ перед поступлением в горелку подогревают, если необходимо уменьшить расход газа по массе, и снижают температуру газа при необходимости увеличить массу подаваемого в рабочие пространства газа. Давление газа перед соплами равно критическому, или больше его, если газ подогрет. Объемный расход газа поэтому посто нен и массовый расход газа зависит от его температуры. Подогрев осуществл ют с помощью электронагревателей или,gases and, consequently, pressure losses in front of the burner nozzles. The burner nozzles have a diameter designed for a specific gas flow rate, which is constant after reaching: a critical pressure, for example, 9.5 atl. The gas is heated before entering the burner, if it is necessary to reduce gas consumption by mass, and reduce the temperature of the gas, if necessary, increase the mass of the gas supplied to the working spaces. The gas pressure in front of the nozzles is equal to the critical one, or greater than it, if the gas is preheated. The volume flow rate of gas is therefore constant and the mass flow rate of gas depends on its temperature. Heating is carried out using electric heaters or

сжига  часть подаваемого газа (примерно 1 % на каждые 200°С).burning part of the feed gas (approximately 1% for every 200 ° C).

Снижение расхода газа с 7000 , например , до 4000 при механическом регулировании сопровождаетс  падением давлени  перед соплом с 9,5 атм до 5,3 атм, и соответственно кинетическа  энерги  факела падает с 404 кет до 229 кет. При термическомA decrease in the gas flow rate from 7000, for example, to 4000 under mechanical control, is accompanied by a drop in pressure before the nozzle from 9.5 atm to 5.3 atm, and accordingly the kinetic energy of the torch drops from 404 kw to 229 kw. In thermal

регулировании кинетическую энергию факела можно поддерживать посто нной около 400 кет при подогреве 6000 до УбС, 5000 час до 160°С, 4000 до 290°С, 3000 час до 500°С и т. д.By adjusting the kinetic energy of the torch, it is possible to maintain a constant of about 400 ket with a heating of 6000 to UC, 5000 hours to 160 ° C, 4000 to 290 ° C, 3000 hours to 500 ° C, etc.

При посто нной жесткости факела тепловой процесс мартеновской печи становитс  легко управл емым.With a constant torch stiffness, the heat process of the open-hearth furnace becomes easily controlled.

Предмет изобретени Subject invention

Способ регулировани  расхода газа в горелках мартеновских печей, отличающийс  тем, что, с целью сохранени  высокого давлени  газа и кинетической энергии факела, изменение расхода газа через сопла горелки осуществл ют путем изменени  его температуры на входе в горелку.The method of controlling the gas flow rate in the burners of open-hearth furnaces, characterized in that, in order to maintain a high gas pressure and kinetic energy of the flame, the gas flow rate through the burner nozzles is changed by changing its temperature at the burner inlet.

SU1431960A 1970-05-20 1970-05-20 METHOD OF REGULATION OF GAS FLOW IN BURNERS SU374488A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1431960A SU374488A1 (en) 1970-05-20 1970-05-20 METHOD OF REGULATION OF GAS FLOW IN BURNERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1431960A SU374488A1 (en) 1970-05-20 1970-05-20 METHOD OF REGULATION OF GAS FLOW IN BURNERS

Publications (1)

Publication Number Publication Date
SU374488A1 true SU374488A1 (en) 1973-03-20

Family

ID=20452313

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1431960A SU374488A1 (en) 1970-05-20 1970-05-20 METHOD OF REGULATION OF GAS FLOW IN BURNERS

Country Status (1)

Country Link
SU (1) SU374488A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846175B2 (en) 2002-03-16 2005-01-25 Exxonmobil Chemical Patents Inc. Burner employing flue-gas recirculation system
US6866502B2 (en) 2002-03-16 2005-03-15 Exxonmobil Chemical Patents Inc. Burner system employing flue gas recirculation
US6869277B2 (en) 2002-03-16 2005-03-22 Exxonmobil Chemical Patents Inc. Burner employing cooled flue gas recirculation
US6877980B2 (en) 2002-03-16 2005-04-12 Exxonmobil Chemical Patents Inc. Burner with low NOx emissions
US6881053B2 (en) 2002-03-16 2005-04-19 Exxonmobil Chemical Patents Inc. Burner with high capacity venturi
US6884062B2 (en) 2002-03-16 2005-04-26 Exxonmobil Chemical Patents Inc. Burner design for achieving higher rates of flue gas recirculation
US6887068B2 (en) 2002-03-16 2005-05-03 Exxonmobil Chemical Patents Inc. Centering plate for burner
US6890171B2 (en) 2002-03-16 2005-05-10 Exxonmobil Chemical Patents, Inc. Apparatus for optimizing burner performance
US6890172B2 (en) 2002-03-16 2005-05-10 Exxonmobil Chemical Patents Inc. Burner with flue gas recirculation
US6893252B2 (en) 2002-03-16 2005-05-17 Exxonmobil Chemical Patents Inc. Fuel spud for high temperature burners
US6893251B2 (en) 2002-03-16 2005-05-17 Exxon Mobil Chemical Patents Inc. Burner design for reduced NOx emissions
US6986658B2 (en) 2002-03-16 2006-01-17 Exxonmobil Chemical Patents, Inc. Burner employing steam injection
US7322818B2 (en) 2002-03-16 2008-01-29 Exxonmobil Chemical Patents Inc. Method for adjusting pre-mix burners to reduce NOx emissions
US7476099B2 (en) 2002-03-16 2009-01-13 Exxonmobil Chemicals Patents Inc. Removable light-off port plug for use in burners

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846175B2 (en) 2002-03-16 2005-01-25 Exxonmobil Chemical Patents Inc. Burner employing flue-gas recirculation system
US6866502B2 (en) 2002-03-16 2005-03-15 Exxonmobil Chemical Patents Inc. Burner system employing flue gas recirculation
US6869277B2 (en) 2002-03-16 2005-03-22 Exxonmobil Chemical Patents Inc. Burner employing cooled flue gas recirculation
US6877980B2 (en) 2002-03-16 2005-04-12 Exxonmobil Chemical Patents Inc. Burner with low NOx emissions
US6881053B2 (en) 2002-03-16 2005-04-19 Exxonmobil Chemical Patents Inc. Burner with high capacity venturi
US6884062B2 (en) 2002-03-16 2005-04-26 Exxonmobil Chemical Patents Inc. Burner design for achieving higher rates of flue gas recirculation
US6887068B2 (en) 2002-03-16 2005-05-03 Exxonmobil Chemical Patents Inc. Centering plate for burner
US6890171B2 (en) 2002-03-16 2005-05-10 Exxonmobil Chemical Patents, Inc. Apparatus for optimizing burner performance
US6890172B2 (en) 2002-03-16 2005-05-10 Exxonmobil Chemical Patents Inc. Burner with flue gas recirculation
US6893252B2 (en) 2002-03-16 2005-05-17 Exxonmobil Chemical Patents Inc. Fuel spud for high temperature burners
US6893251B2 (en) 2002-03-16 2005-05-17 Exxon Mobil Chemical Patents Inc. Burner design for reduced NOx emissions
US6902390B2 (en) 2002-03-16 2005-06-07 Exxonmobil Chemical Patents, Inc. Burner tip for pre-mix burners
US6986658B2 (en) 2002-03-16 2006-01-17 Exxonmobil Chemical Patents, Inc. Burner employing steam injection
US7025587B2 (en) 2002-03-16 2006-04-11 Exxonmobil Chemical Patents Inc. Burner with high capacity venturi
US7322818B2 (en) 2002-03-16 2008-01-29 Exxonmobil Chemical Patents Inc. Method for adjusting pre-mix burners to reduce NOx emissions
US7476099B2 (en) 2002-03-16 2009-01-13 Exxonmobil Chemicals Patents Inc. Removable light-off port plug for use in burners

Similar Documents

Publication Publication Date Title
SU374488A1 (en) METHOD OF REGULATION OF GAS FLOW IN BURNERS
US4181491A (en) Method and apparatus for heating a furnace chamber
US3209811A (en) Combination high velocity burner
US2849221A (en) Heat treating furnace
CA1061547A (en) Method and apparatus for heating a furnace chamber
US2529690A (en) Heating apparatus
US2776827A (en) Method of alternate low and high fuel firing of a soaking pit furnace
US2458624A (en) Method and apparatus for artificially compensating for thermal load changes in heat-treatment furnaces
US3198855A (en) Method of operating soaking pits
GB1329578A (en) Method of heating metal parts particularly steel ingots or the like in soaking furnaces particularly pit type furnaces and a burner arrangement for carrying out the method
US3035824A (en) Furnace with cooled and recirculated atmosphere
US2317927A (en) Combustion control
SU585391A1 (en) Method of temperature regulation in nonoxidizing heat treatment furnaces
GB667171A (en) Improvements in or relating to temperature control apparatus for furnaces or other high temperature heating chambers
JPH09229351A (en) Combustion method for heating furnace
US2439309A (en) Industrial furnace and method of operating the same
JPS61207504A (en) Method for controlling combustion in hot stove
US2480374A (en) Furnace
SU1222687A1 (en) Metal nonoxidizing heating furnace
GB903749A (en) Improvements in or relating to process for heating and humidifying blast for metallurgical furnaces
SU787795A1 (en) Injection nozzle
SU1435560A1 (en) Installation for processing blast-furnace slag melt
JPS5510445A (en) Continuously calcining furnace for carbon material
SU1399628A1 (en) Combustion furnace
JPS5776198A (en) Control of terperature of material in heating furnace