CN108443886A - Low nitrogen burner - Google Patents
Low nitrogen burner Download PDFInfo
- Publication number
- CN108443886A CN108443886A CN201810571770.XA CN201810571770A CN108443886A CN 108443886 A CN108443886 A CN 108443886A CN 201810571770 A CN201810571770 A CN 201810571770A CN 108443886 A CN108443886 A CN 108443886A
- Authority
- CN
- China
- Prior art keywords
- channel
- wind
- air duct
- center
- eddy flow
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 57
- 239000007789 gas Substances 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 201000006353 Filariasis Diseases 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- F23D14/24—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 at least one of the fluids being submitted to a swirling motion
-
- 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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of low nitrogen burners, including center fuel cylinder, central wind-tube, eddy flow air duct, burner outer barrel, comburent air duct and gaseous fuel pipeline；Center fuel cylinder, central wind-tube, eddy flow air duct and burner outer barrel empty set successively from inside to outside, wherein, center fuel rifle channel is formed in center fuel cylinder, center wind duct is formed between center fuel cylinder and central wind-tube, Whirl deposite tank channel is formed between central wind-tube and eddy flow air duct, direct current wind channel is formed between eddy flow air duct and burner outer barrel, the outlet of comburent air duct is connected with center wind duct, Whirl deposite tank channel and direct current wind channel respectively；It is circumferentially arranged in Whirl deposite tank channel to have several eddy flow rifles, it is circumferentially arranged in direct current wind channel to have several main gas guns, wherein, the outlet of gaseous fuel pipeline is connected with the entrance in center fuel rifle channel, the entrance of each eddy flow rifle and each main gas gun respectively, and the NOx emission mass concentration of the burner is less than 30mg/m3。
Description
Technical field
The invention belongs to low nitrogen clean-burning technology fields, are related to a kind of low nitrogen burner.
Background technology
Gaseous fuel has the characteristics that higher efficiency of combustion and low pollution emission, so gaseous fuel is as clean energy resource
It is widely used in the industrial furnace (kiln) and boiler of the industries such as electric power, chemical industry, metallurgy, building materials.And as the gas of its key equipment
Volumetric combustion device, research constantly make progress.But in terms of being concentrated mainly on the performance improvement to burner to its research.And to dirt
Contaminate the also far from enough of object control aspect concern.
With newest《Atmosphere pollutants emission standards》(GB13223-2011) implementation, to Beijing on April 1st, 2017
The NOx emission mass concentration control standard of all gas fired-boilers is reduced to 30mg/m3(standard state, 3.5%O2).Behind Beijing, Tianjin,
Same policy is put into effect in succession in the ground such as Zhengzhou, Xi'an, Chengdu.And gas burner traditional at present cannot meet discharge and want
It asks.Therefore it is badly in need of developing low NOx gas burners and related system to meet newest environmental protection standard.
Invention content
It is an object of the invention to overcome the above-mentioned prior art, a kind of low nitrogen burner, the combustion are provided
The NOx emission mass concentration of burner is less than 30mg/m3。
In order to achieve the above objectives, low nitrogen burner of the present invention includes center fuel cylinder, central wind-tube, eddy flow
Air duct, burner outer barrel, comburent air duct and gaseous fuel pipeline；
Center fuel cylinder, central wind-tube, eddy flow air duct and burner outer barrel empty set successively from inside to outside, wherein fire at center
Center fuel rifle channel is formed in barrel, and center wind duct, central wind-tube and rotation are formed between center fuel cylinder and central wind-tube
Whirl deposite tank channel is formed between stream air duct, forms direct current wind channel, comburent air duct between eddy flow air duct and burner outer barrel
Outlet be connected respectively with center wind duct, Whirl deposite tank channel and direct current wind channel；
It is circumferentially arranged in Whirl deposite tank channel to have several eddy flow rifles, it is circumferentially arranged in direct current wind channel to have several main combustion gas
Spray gun, wherein gaseous fuel pipeline outlet respectively with center fuel rifle channel, the entrance of each eddy flow rifle and each main gas gun
Entrance be connected.
The outlet of center fuel cylinder is flared structure.
It further include disk bluff body, wherein the outlet of disk bluff body face center fuel cylinder.
Main gas gun radially, axial direction and lateral direction fuel is sprayed with 5 ° -90 ° of angle.
Main gas gun radially, axial direction and lateral direction injection quality of fuel ratio be 5~10%：50~60%：45
~30%.
Burner outer barrel exit is provided with 10 ° -60 ° of the bending section of curving inwardly, wherein the axial direction of the bending section is long
Degree is 5~50mm.
The invention has the advantages that：
Low nitrogen burner of the present invention is formed stable when specific operation by centre wind and center fuel
Flame of centre, Whirl deposite tank form swirl flame with the fuel that eddy flow rifle sprays, and the fuel that main gas gun sprays is mixed with direct current wind
Conjunction forms annular flame to elongate the length of flame, is mutually supported, is made layer by layer by flame of centre, swirl flame and annular flame
The abundant fuel of fuel is obtained, to improve the efficiency of combustion of burner, so that the NOx emission mass concentration of burner is reduced to
30mg/m3Hereinafter, meeting the standard of newest environmental protection, simple in structure, easy to operate, economic benefit and social benefit are preferable.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sectional view of the present invention；
Fig. 3 is the sectional view of center wind duct 4 in the present invention；
Fig. 4 is the structural schematic diagram of main gas gun 3 in the present invention.
Wherein, fuel gun channel centered on 1,2 be eddy flow rifle, 3 be wind channel centered on main gas gun, 4,5 be eddy flow
Wind channel, 6 be direct current wind channel, 7 be bending section, 8 be disk bluff body, 9 be burner outer barrel, 10 be eddy flow air duct, 11 be
Propellant bottle centered on heart air duct, 12.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, Fig. 2 and Fig. 3, low nitrogen burner of the present invention includes center fuel cylinder 12, central wind-tube
11, eddy flow air duct 10, burner outer barrel 9, comburent air duct and gaseous fuel pipeline；Center fuel cylinder 12, central wind-tube 11,
Eddy flow air duct 10 and burner outer barrel 9 empty set successively from inside to outside, wherein center fuel rifle channel is formed in center fuel cylinder 12
1, center wind duct 4 is formed between center fuel cylinder 12 and central wind-tube 11, is formed between central wind-tube 11 and eddy flow air duct 10
Whirl deposite tank channel 5 forms direct current wind channel 6, the outlet difference of comburent air duct between eddy flow air duct 10 and burner outer barrel 9
It is connected with center wind duct 4, Whirl deposite tank channel 5 and direct current wind channel 6；It is circumferentially arranged in Whirl deposite tank channel 5 to have several rotations
Flow rifle 2, it is circumferentially arranged in direct current wind channel 6 to have several main gas guns 3, wherein the outlet of gaseous fuel pipeline respectively with
The entrance in center fuel rifle channel 1, the entrance of each eddy flow rifle 2 and each main gas gun 3 is connected.
The invention also includes disk bluff bodies 8, wherein the outlet of 8 face center fuel cylinder 12 of disk bluff body；Center fuel cylinder
12 outlet is flared structure.
With reference to figure 4, main gas gun 3 radially, axial direction and lateral direction fuel is sprayed with 5 ° -90 ° of angle；Main combustion gas
Spray gun 3 radially, axial direction and lateral direction injection quality of fuel ratio be 5~10%：50~60%：45~30%.
9 exit of burner outer barrel is provided with 10 ° -60 ° of the bending section 7 of curving inwardly, wherein the axis of the bending section 7
It is 5~50mm to length.
The present invention specific work process be：
The outlet of comburent air duct is connected with center wind duct 4, Whirl deposite tank channel 5 and direct current wind channel 6 respectively；Gas
Fluid fuel pipeline outlet respectively with center fuel rifle channel 1, the entrance phase of the entrance of each eddy flow rifle 2 and each main gas gun 3
Connection, wherein centre wind forms stable flame of centre with center fuel, and Whirl deposite tank is formed with the fuel that eddy flow rifle 2 sprays to be revolved
Filariasis flame, the fuel that main gas gun 3 sprays are mixed to form annular flame to elongate the length of flame with direct current wind, pass through center
Flame, swirl flame and annular flame mutually support layer by layer so that full combustion of fuel is made with reducing NOx emission mass concentration
The discharge quality concentration of NOx is less than 30mg/m3, after increasing flue gas recirculation, flame of centre is in burner root area always
In domain, the de- fire of main gas gun will not be caused since the increase of exhaust gas volumn, root flame combustion postpone.
Claims (6)
1. a kind of low nitrogen burner, which is characterized in that including center fuel cylinder (12), central wind-tube (11), eddy flow air duct
(10), burner outer barrel (9), comburent air duct and gaseous fuel pipeline；
Center fuel cylinder (12), central wind-tube (11), eddy flow air duct (10) and burner outer barrel (9) empty set successively from inside to outside,
Wherein, center fuel rifle channel (1) is formed in center fuel cylinder (12), shape between center fuel cylinder (12) and central wind-tube (11)
At center wind duct (4), Whirl deposite tank channel (5) are formed between central wind-tube (11) and eddy flow air duct (10), eddy flow air duct (10)
Form direct current wind channel (6) between burner outer barrel (9), the outlet of comburent air duct respectively with center wind duct (4), rotation
Stream wind channel (5) and direct current wind channel (6) are connected；
It is circumferentially arranged in Whirl deposite tank channel (5) to have several eddy flow rifles (2), in direct current wind channel (6) it is circumferentially arranged have it is several
Main gas gun (3), wherein the outlet of gaseous fuel pipeline enters with center fuel rifle channel (1), each eddy flow rifle (2) respectively
The entrance of mouth and each main gas gun (3) is connected.
2. low nitrogen burner according to claim 1, which is characterized in that the outlet of center fuel cylinder (12) is loudspeaker
Shape structure.
3. low nitrogen burner according to claim 1, which is characterized in that further include disk bluff body (8), wherein circle
The outlet of disk bluff body (8) face center fuel cylinder (12).
4. low nitrogen burner according to claim 1, which is characterized in that main gas gun (3) radially, it is axial and
Lateral direction sprays fuel with 5 ° -90 ° of angle.
5. low nitrogen burner according to claim 4, which is characterized in that main gas gun (3) radially, it is axial and
It is 5~10% that lateral direction, which sprays quality of fuel ratio,：50~60%：45~30%.
6. low nitrogen burner according to claim 1, which is characterized in that burner outer barrel (9) exit is provided with
Curve inwardly 10 ° -60 ° of bending section (7), wherein the axial length of the bending section (7) is 5~50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571770.XA CN108443886B (en) | 2018-05-31 | 2018-05-31 | Low nitrogen gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571770.XA CN108443886B (en) | 2018-05-31 | 2018-05-31 | Low nitrogen gas burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108443886A true CN108443886A (en) | 2018-08-24 |
| CN108443886B CN108443886B (en) | 2023-11-03 |
Family
ID=63206028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810571770.XA Active CN108443886B (en) | 2018-05-31 | 2018-05-31 | Low nitrogen gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443886B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614394A (en) * | 2008-06-23 | 2009-12-30 | 宝山钢铁股份有限公司 | Multiple class high fuel gas with low heat value smooth combustion method and device thereof |
| CN105805746A (en) * | 2016-05-12 | 2016-07-27 | 徐州科融环境资源股份有限公司 | Classified-combustion fuel gas low-nitrogen combustor |
| CN106051769A (en) * | 2016-07-26 | 2016-10-26 | 西安西热锅炉环保工程有限公司 | Novel high-efficiency ultralow-nitrogen gas burner |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN206989198U (en) * | 2017-07-24 | 2018-02-09 | 福州华夏蓝天信息科技有限公司 | A kind of low nitrogen burner |
| CN207247206U (en) * | 2017-08-30 | 2018-04-17 | 西安西热锅炉环保工程有限公司 | A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system |
-
2018
- 2018-05-31 CN CN201810571770.XA patent/CN108443886B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614394A (en) * | 2008-06-23 | 2009-12-30 | 宝山钢铁股份有限公司 | Multiple class high fuel gas with low heat value smooth combustion method and device thereof |
| CN105805746A (en) * | 2016-05-12 | 2016-07-27 | 徐州科融环境资源股份有限公司 | Classified-combustion fuel gas low-nitrogen combustor |
| CN106051769A (en) * | 2016-07-26 | 2016-10-26 | 西安西热锅炉环保工程有限公司 | Novel high-efficiency ultralow-nitrogen gas burner |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN206989198U (en) * | 2017-07-24 | 2018-02-09 | 福州华夏蓝天信息科技有限公司 | A kind of low nitrogen burner |
| CN207247206U (en) * | 2017-08-30 | 2018-04-17 | 西安西热锅炉环保工程有限公司 | A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108443886B (en) | 2023-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106642114B (en) | It is a kind of with pipette tips from the ultra-low nitrogen volumetric combustion device of smooth combustion apparatus | |
| CN106051769B (en) | A kind of new and effective ultra-low nitrogen volumetric combustion device | |
| CN105698172B (en) | A kind of petal fractional combustion combustion gas low NO | |
| CN101476726B (en) | High-temperature low-oxygen combustor | |
| CN204165044U (en) | The premixed coal dust low NO of a kind of adverse current | |
| CN102721058A (en) | Gas burner with low NOX | |
| CN101876433B (en) | Whirl pulverized coal burner used for industrial stove and adopting gas recirculation | |
| WO2021169326A1 (en) | Low-nitrogen gas burner suitable for medium-and-low heat value fuels | |
| CN112984507B (en) | Air fuel multilayer three-dimensional grading low-nitrogen gas burner | |
| CN104154533A (en) | Reverse flow pre-mixing type pulverized coal low-nitrogen combustor and combustion method thereof | |
| CN208332262U (en) | Low nitrogen burner | |
| CN203442823U (en) | Self-suction top-mounted round nitrogen oxide gas burner with low flame fuel staging | |
| CN207247206U (en) | A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system | |
| CN110410787A (en) | A kind of oxygen-enriched flameless burner of hydrogen vapor | |
| CN108518677A (en) | A kind of low nitrogen burner | |
| CN211694879U (en) | Low-nitrogen gas burner suitable for medium-low heat value fuel | |
| CN201335378Y (en) | High-temperature hypoxia combustor | |
| CN202733892U (en) | Semi-pre-mixed-type secondary combustor energy-saving device | |
| CN204901756U (en) | Partly mix low NOx burner in advance | |
| CN108443886A (en) | Low nitrogen burner | |
| CN208253580U (en) | A kind of low nitrogen burner | |
| CN105222132A (en) | A kind of novel low NO | |
| CN110107889A (en) | A kind of flue gas two-way circulation and the low NO system of combustion zone segmentation | |
| CN205825031U (en) | A kind of new and effective ultra-low nitrogen body burner | |
| CN108397774A (en) | It is a kind of to be used for natural gas and the coal dust individually burner of burning or multifuel combustion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |