CN103343967A - High-temperature oxygen enrichment oil-free pulverized coal ignition stable combustion method - Google Patents
High-temperature oxygen enrichment oil-free pulverized coal ignition stable combustion method Download PDFInfo
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- CN103343967A CN103343967A CN2013103026969A CN201310302696A CN103343967A CN 103343967 A CN103343967 A CN 103343967A CN 2013103026969 A CN2013103026969 A CN 2013103026969A CN 201310302696 A CN201310302696 A CN 201310302696A CN 103343967 A CN103343967 A CN 103343967A
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- flow
- temperature oxygen
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- 239000001301 oxygen Substances 0.000 title claims abstract description 57
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 57
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 238000009841 combustion method Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 13
- 239000002817 coal dust Substances 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000001879 copper Chemical class 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000010802 sludge Substances 0.000 claims description 2
- 210000004894 snout Anatomy 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 9
- 238000010304 firing Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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Classifications
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- 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
Abstract
Provided is a high-temperature oxygen enrichment oil-free pulverized coal ignition stable combustion method. The method is characterized in that when a coal-fired power generation boiler carries out ignition or stable combustion, a certain amount of high-temperature oxygen flow is added into primary air pulverized coal in a primary air pipeline, the high-temperature oxygen flow and part of primary air powder are premixed in the primary air pipeline, the heat and the reinforced combustion-supporting performance of the high-temperature oxygen flow are used for directly igniting the part of the primary air powder, and accordingly under the situation without oil, the primary air powder in the whole primary air pipeline is ignited, and ignition and stable combustion of the coal-fired power generation boiler are guaranteed.
Description
Technical field
The present invention relates to the high-temperature oxygen-enriched non-oil ignition smooth burning method of a kind of coal-fired electric generation furnace, refer to the application in the igniting of coal burner electricity generation boiler or the surely combustion process especially.
Background technology
The station boiler that is fuel with wind coal dust is the main force of China's thermal power generation; when the start and stop of electricity generation boiler or low-load combustion-stabilizing; when adopting Gasifying Small Oil Gun and two technology ignition smooth combustion by force; need to consume great amount of fuel oil; when adopting the plasma technology ignition smooth combustion; owing to be subjected to the influence of ature of coal, also with fuel consumption.
Fuel oil is non-renewable energy resources, and along with global petroleum resources are day by day in short supply constantly soaring with crude oil price, the control fuel consume has been the realistic problem that China's thermoelectricity industry has to face.How the opening, stop and fuel consumption not during low-load combustion-stabilizing of boiler, one of key subjects that become research field tap a new source of energy.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of coal-fired electric generation furnace high temperature pure oxygen non-oil ignition smooth burning method.
For reaching above purpose, solution of the present invention is:
A kind of coal-fired electric generation furnace high temperature pure oxygen non-oil ignition smooth burning method, it is characterized in that when coal-fired electric generation furnace is lighted a fire or surely fired, add a certain amount of high temperature oxygen air-flow in the wind coal dust in airduct road, high temperature oxygen air-flow and a wind wind of part powder be premix in airduct road, utilize the combustion-supporting characteristic of the contained heat energy of high temperature oxygen air-flow and reinforcement, directly light a wind wind of this part powder, thereby under no oil condition, ignite primary wind and powder in the whole airduct road guarantees coal-fired electric generation furnace igniting and steady combustion.
Further, the contained heat energy of high temperature oxygen air-flow should be enough to provide required ignition heat for the burning of a wind wind of part powder.
Further, feeding the high temperature oxygen air-flow in the wind coal dust can make by dual mode: first method, in outside, an airduct road, utilize high temperature media such as hot secondary wind that boiler produces, steam to heat normal temperature oxygen by the mode of heat transmission, make the high temperature oxygen air-flow in the wind pulverized coal flow one time; Second method in inside, an airduct road, is utilized high-temperature flue gas, the high-temperature plasma in the airduct road one time, and the mode of directly mixing the heating of normal temperature oxygen by this high-temperature flue gas, high-temperature plasma makes the high temperature oxygen air-flow in the wind pulverized coal flow one time.
Further, high temperature media such as hot secondary wind, steam heat normal temperature oxygen in this copper pipe by the sludge proof copper pipe in the mode of heat transmission.
Further, the high-temperature flue gas in airduct road is produced by oil gun, and the high-temperature plasma in airduct road is produced by plasma generator.
Further, according to the combustion case of primary wind and powder at a wind snout place, adjust the supply of normal temperature oxygen.
Principle of the present invention and characteristics are:
This characteristic feature of an invention is: the first, and high-temperature oxygen has greatly been strengthened the combustion-supporting effect of oxygen: improved the burning velocity of coal dust, the ignition temperature that has improved the temperature that coal dust firing produces, reduced coal dust; The second, high-temperature oxygen self has a certain amount of heat energy, can be coal dust firing enough ignition heats are provided.
When ignition of the boiler or when surely firing, primary wind and powder flows in airduct road, and part primary wind and powder stream and high temperature oxygen air-flow premix do not have oil, directly light part primary wind and powder stream under the effect of high temperature oxygen air-flow, and whole primary wind and powder stream then ignites.
Description of drawings:
Fig. 1 is principle of the invention schematic diagram one
Fig. 2 is principle of the invention schematic diagram two
The specific embodiment:
Embodiment one:
As shown in Figure 1, this coal-fired electric generation furnace high temperature pure oxygen non-oil ignition surely fires to invent and comprises resistance to oxidation copper pipe 1, an airduct road 2.
When ignition of the boiler or when surely firing, part wind powder stream and the abundant premix of high temperature oxygen air-flow that is provided by resistance to oxidation copper pipe 1 of the primary wind and powder in airduct road 2, because high-temperature oxygen has greatly been strengthened the combustion-supporting effect of oxygen, and high-temperature oxygen self has certain heat energy, thereby do not have oil under the effect of high temperature oxygen air-flow, directly light part primary wind and powder stream, whole primary wind and powder stream then ignites.
When using the smooth burning method igniting of coal-fired electric generation furnace high temperature pure oxygen non-oil ignition or surely firing, can regulate the normal temperature oxygen flow automatically by automation control system.
Embodiment two:
As shown in Figure 2, this coal-fired electric generation furnace high temperature pure oxygen non-oil ignition surely fires the invention structure and comprises oxygen conveying pipe 1, airduct road 2, oil gun or a plasma generator 3.
When ignition of the boiler or when surely firing, a general mood that contains coal dust flows in airduct road 2, oxygen conveying pipe 1 provides the normal temperature Oxygen Flow, high-temperature flue gas stream or near the a-quadrant abundant premix of high-temperature plasma oxygen spout place or oxygen spout that normal temperature oxygen and oil gun or plasma generator 3 produce, the heating Oxygen Flow, meanwhile, this Oxygen Flow is mixed with the part primary wind and powder, because high-temperature oxygen has greatly been strengthened the combustion-supporting effect of oxygen, strengthened the activity of oxygen molecule, improved coal dust firing speed, and the heat energy that high-temperature oxygen self has, thereby no oil drop combustion part primary wind and powder stream under the effect of high temperature oxygen air-flow, whole primary wind and powder stream then ignites.
When using the smooth burning method igniting of coal-fired electric generation furnace high temperature pure oxygen non-oil ignition or surely firing, can regulate the normal temperature oxygen flow automatically by automation control system.
To sum up characteristic feature of an invention is: high-temperature oxygen has greatly been strengthened the combustion-supporting effect of oxygen, and high-temperature oxygen self has the heat energy of certain part primary wind and powder that ignites, thereby nothing is oily under the effect of high temperature oxygen air-flow, directly light part primary wind and powder stream, the whole primary wind and powder that ignites then flows, non-oil ignition and steady combustion.Save power plant's oil consumption, improved the adaptability of coal.
Above enforcement; only be to general description of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; anyone all should fall in the definite protection domain of claims of the present invention various distortion and improvement that technical scheme of the present invention is made.
Claims (6)
1. coal-fired electric generation furnace high temperature pure oxygen non-oil ignition smooth burning method, it is characterized in that when coal-fired electric generation furnace is lighted a fire or surely fired, add a certain amount of high temperature oxygen air-flow in the wind coal dust in airduct road, high temperature oxygen air-flow and a wind wind of part powder be premix in airduct road, utilize the combustion-supporting characteristic of the contained heat energy of high temperature oxygen air-flow and reinforcement, directly light a wind wind of this part powder, thereby under no oil condition, ignite primary wind and powder in the whole airduct road guarantees coal-fired electric generation furnace igniting and steady combustion.
2. high temperature pure oxygen as claimed in claim 1 does not have oily pulverized coal ignition smooth burning method, it is characterized in that the contained heat energy of high temperature oxygen air-flow should be enough to provide required ignition heat for the burning of a wind wind of part powder.
3. high temperature pure oxygen as claimed in claim 1 does not have oily pulverized coal ignition smooth burning method, it is characterized in that feeding the high temperature oxygen air-flow in the wind coal dust can make by dual mode: first method, in outside, an airduct road, utilize high temperature media such as hot secondary wind that boiler produces, steam to heat normal temperature oxygen by the mode of heat transmission, make the high temperature oxygen air-flow in the wind pulverized coal flow one time; Second method in inside, an airduct road, is utilized high-temperature flue gas, the high-temperature plasma in the airduct road one time, and the mode of directly mixing the heating of normal temperature oxygen by this high-temperature flue gas, high-temperature plasma makes the high temperature oxygen air-flow in the wind pulverized coal flow one time.
4. high temperature pure oxygen as claimed in claim 2 does not have oily pulverized coal ignition smooth burning method, it is characterized in that high temperature media such as hot secondary wind, steam heat normal temperature oxygen in this copper pipe by the sludge proof copper pipe in the mode of heat transmission.
5. high temperature pure oxygen as claimed in claim 2 does not have oily pulverized coal ignition smooth burning method, it is characterized in that the high-temperature flue gas in the airduct road is produced by oil gun, and the high-temperature plasma in airduct road is produced by plasma generator.
6. high temperature pure oxygen as claimed in claim 1 does not have oily pulverized coal ignition smooth burning method, it is characterized in that according to the combustion case of primary wind and powder at a wind snout place, adjusts the supply of normal temperature oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103026969A CN103343967A (en) | 2013-07-18 | 2013-07-18 | High-temperature oxygen enrichment oil-free pulverized coal ignition stable combustion method |
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| CN2013103026969A CN103343967A (en) | 2013-07-18 | 2013-07-18 | High-temperature oxygen enrichment oil-free pulverized coal ignition stable combustion method |
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| CN103343967A true CN103343967A (en) | 2013-10-09 |
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| CN2013103026969A Pending CN103343967A (en) | 2013-07-18 | 2013-07-18 | High-temperature oxygen enrichment oil-free pulverized coal ignition stable combustion method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868068A (en) * | 2014-03-24 | 2014-06-18 | 王龙陵 | High temperature oxygen direct ignition and combustion stabilization system |
| WO2016151048A1 (en) * | 2015-03-24 | 2016-09-29 | Mitsubishi Hitachi Power Systems Europe Gmbh | METHOD OF REDUCING NOx EMISSIONS IN THE COMBUSTION OF FUEL IN DUST FORM |
| CN110207106A (en) * | 2019-05-15 | 2019-09-06 | 哈尔滨锅炉厂有限责任公司 | A kind of coal dust oxygen-enriched burner and its system meeting unit depth peak regulation requirement |
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| CN102269424A (en) * | 2011-04-26 | 2011-12-07 | 向卫 | Oxygen enrichment plasma oil-free ignition and stable combustion method and device |
| CN103090380A (en) * | 2013-01-09 | 2013-05-08 | 向卫 | Plasma oilless oxygen enrichment pulverized coal combustion device |
| CN203036632U (en) * | 2012-02-23 | 2013-07-03 | 向卫 | Coal-fired boiler premixing device of primary air pulverized coal and pure oxygen |
-
2013
- 2013-07-18 CN CN2013103026969A patent/CN103343967A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797087A (en) * | 1985-07-15 | 1989-01-10 | American Combustion, Inc. | Method and apparatus for generating highly luminous flame |
| EP0711952A2 (en) * | 1994-11-14 | 1996-05-15 | Mitsubishi Jukogyo Kabushiki Kaisha | Pulverized coal combustion burner |
| CN1752524A (en) * | 2004-09-21 | 2006-03-29 | 北京国力能高科技有限公司 | High-temp oxygen-enriched air fire lighting method for coal powder boiler and device thereof |
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| CN102269424A (en) * | 2011-04-26 | 2011-12-07 | 向卫 | Oxygen enrichment plasma oil-free ignition and stable combustion method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868068A (en) * | 2014-03-24 | 2014-06-18 | 王龙陵 | High temperature oxygen direct ignition and combustion stabilization system |
| CN103868068B (en) * | 2014-03-24 | 2016-03-02 | 王龙陵 | A kind of high-temperature oxygen direct-fire and surely fire system |
| WO2016151048A1 (en) * | 2015-03-24 | 2016-09-29 | Mitsubishi Hitachi Power Systems Europe Gmbh | METHOD OF REDUCING NOx EMISSIONS IN THE COMBUSTION OF FUEL IN DUST FORM |
| CN110207106A (en) * | 2019-05-15 | 2019-09-06 | 哈尔滨锅炉厂有限责任公司 | A kind of coal dust oxygen-enriched burner and its system meeting unit depth peak regulation requirement |
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Free format text: FORMER OWNER: REN YOUHUA WU FANGLUN XUE QINPU DU YI WANG QING Effective date: 20150508 Owner name: CHONGQING FURAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XIANG WEI Effective date: 20150508 |
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Effective date of registration: 20150508 Address after: 400050 Chongqing Jiulongpo District West of Yangjiaping branch No. 20 building 9 street, 2 floor Applicant after: CHONGQING FURAN TECHNOLOGY CO., LTD. Address before: 400050 Chongqing Jiulongpo District of Yangjiaping city A2 century Bin Xin Building No. 21-8 Applicant before: Xiang Wei Applicant before: Ren Youhua Applicant before: Wu Fanglun Applicant before: Xue Qinpu Applicant before: Du Yi Applicant before: Wang Qing |
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Application publication date: 20131009 |
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