SU374488A1 - METHOD OF REGULATION OF GAS FLOW IN BURNERS - Google Patents
METHOD OF REGULATION OF GAS FLOW IN BURNERSInfo
- 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
Links
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction 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.
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)
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 |
-
1970
- 1970-05-20 SU SU1431960A patent/SU374488A1/en active
Cited By (16)
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 |
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