CN108518677A - A kind of low nitrogen burner - Google Patents
A kind of low nitrogen burner Download PDFInfo
- Publication number
- CN108518677A CN108518677A CN201810550878.0A CN201810550878A CN108518677A CN 108518677 A CN108518677 A CN 108518677A CN 201810550878 A CN201810550878 A CN 201810550878A CN 108518677 A CN108518677 A CN 108518677A
- Authority
- CN
- China
- Prior art keywords
- channel
- wind
- air duct
- center
- eddy flow
- Prior art date
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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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- 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
-
- 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
- F23D14/48—Nozzles
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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
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- 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, center fuel cylinder, central wind-tube, eddy flow air duct, burner outer barrel and each main gas gun are sequentially arranged 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, Whirl deposite tank is provided with eddy flow tray in channel, it is circumferentially arranged in direct current wind channel to there are several L-types to strile-back spray gun, comburent air duct respectively with center wind duct, Whirl deposite tank channel and direct current wind channel are connected, gaseous fuel pipeline respectively with center fuel rifle channel, each L-type strile-backs the entrance of spray gun and the entrance of each main gas gun is connected, the NOx emission of the burner is less than 30mg/m3Below.
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).North city is high-power
Discharge is in 100mg/m before the transformation of heat supply gas fired-boiler3Left and right, considerably beyond standard.For high power gas boiler design one
The gas burner of kind special construction controls NOx emission in 30mg/m3(standard state, 3.5%O2) is hereinafter, be the task of top priority.
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 of burner is less than 30mg/m3Below.
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, gaseous fuel pipeline and several main gas guns；
Center fuel cylinder, central wind-tube, eddy flow air duct, burner outer barrel and each main gas gun cloth successively from inside to outside
It sets, wherein form center fuel rifle channel in center fuel cylinder, it is logical to form centre wind between center fuel cylinder and central wind-tube
Road forms Whirl deposite tank channel between central wind-tube and eddy flow air duct, it is logical that direct current wind is formed between eddy flow air duct and burner outer barrel
Road, is provided with eddy flow tray in Whirl deposite tank channel, circumferentially arranged in direct current wind channel to have several L-types to strile-back spray gun, combustion air
Pipeline is connected with center wind duct, Whirl deposite tank channel and direct current wind channel respectively, gaseous fuel pipeline respectively with center fuel
The entrance of spray gun is strile-backd in rifle channel, each L-type and the entrance of each main gas gun is connected.
The exit of center fuel cylinder is provided with disk bluff body.
L-type strile-back spray gun number be 3-10 only, and each L-type spray gun that strile-backs is uniformly distributed circumferentially.
The number of main gas gun is 5-20, and each main gas gun is uniformly distributed circumferentially.
The strile-back nozzle of spray gun of each L-type curves inwardly and the axis of face center fuel cylinder.
The invention has the advantages that：
For low nitrogen burner of the present invention in specific works, centre wind forms stable center with center fuel
Flame, the strile-back fuel of spray gun ejection of Whirl deposite tank and L-type form premixed flame, the fuel and central burner that main gas gun sprays
The heat smoke of expansion mixes, and flame is radially expanded, to reduce NOx emission mass concentration, keeps the discharge quality of NOx dense
Degree is less than 30mg/m3, simple in structure, easy to operate, practicability is extremely strong.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sectional view of the present invention.
Wherein, 1 it is main gas gun, 2 be that L-type strile-backs centered on spray gun, 3 that air duct, 5 are eddy flow centered on propellant bottle, 4
Disk, 6 be direct current wind channel, 7 be burner outer barrel, 8 be eddy flow air duct.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1 and Fig. 2, low nitrogen burner of the present invention includes center fuel cylinder 3, central wind-tube 4, eddy flow
Air duct 8, burner outer barrel 7, comburent air duct, gaseous fuel pipeline and several main gas guns 1；Center fuel cylinder 3, center
Air duct 4, eddy flow air duct 8, burner outer barrel 7 and each main gas gun 1 are sequentially arranged from inside to outside, wherein in center fuel cylinder 3
Center fuel rifle channel is formed, forms center wind duct, central wind-tube 4 and Whirl deposite tank between center fuel cylinder 3 and central wind-tube 4
Whirl deposite tank channel is formed between cylinder 8, forms direct current wind channel 6 between eddy flow air duct 8 and burner outer barrel 7, in Whirl deposite tank channel
It is provided with eddy flow tray 5, circumferentially arranged in direct current wind channel 6 there are several L-types to strile-back spray gun 2, comburent air duct is respectively in
Heart wind channel, Whirl deposite tank channel and direct current wind channel 6 are connected, gaseous fuel pipeline respectively with center fuel rifle channel, each L-type
It strile-backs the entrance of spray gun 2 and the entrance of each main gas gun 1 is connected.
The exit of center fuel cylinder 3 is provided with disk bluff body；L-type strile-back spray gun 2 number be 3-10 only, and each L-type
The spray gun 2 that strile-backs is uniformly distributed circumferentially；The number of main gas gun 1 is 5-20, and each main gas gun 1 circumferentially uniformly divides
Cloth；The strile-back nozzle of spray gun 2 of each L-type curves inwardly and the axis of face center fuel cylinder 3.
The present invention specific work process be：
Comburent air duct is connected with center wind duct, Whirl deposite tank channel and direct current wind channel 6 respectively；Gaseous fuel pipe
Road strile-backs the entrance of spray gun 2 with center fuel rifle channel, each L-type respectively and the entrance of each main gas gun 1 is connected, wherein
Centre wind and center fuel form stable flame of centre, and the strile-back fuel of the ejection of spray gun 2 of Whirl deposite tank and L-type forms premix fire
Flame, the fuel that main gas gun 1 sprays mix with the heat smoke that central burner expands, flame are radially expanded, with drop
Low NOx drainage mass concentration makes the discharge quality concentration of NOx be less than 30mg/m3, after increasing flue gas recirculation, flame of centre
Always it is in burner root area, will not postpone due to the increase of exhaust gas volumn, root flame combustion and cause main gas gun
De- fire.
Claims (6)
1. a kind of low nitrogen burner, which is characterized in that including center fuel cylinder (3), central wind-tube (4), eddy flow air duct
(8), burner outer barrel (7), comburent air duct, gaseous fuel pipeline and several main gas guns (1)；
Center fuel cylinder (3), central wind-tube (4), eddy flow air duct (8), burner outer barrel (7) and each main gas gun (1) are by interior
To being sequentially arranged outside, wherein form center fuel rifle channel, center fuel cylinder (3) and central wind-tube in center fuel cylinder (3)
(4) center wind duct is formed between, and Whirl deposite tank channel, eddy flow air duct (8) are formed between central wind-tube (4) and eddy flow air duct (8)
Direct current wind channel (6) are formed between burner outer barrel (7), eddy flow tray (5), direct current wind channel are provided in Whirl deposite tank channel
(6) circumferentially arranged in there are several L-types to strile-back spray gun (2), comburent air duct respectively with center wind duct, Whirl deposite tank channel and
Direct current wind channel (6) is connected, gaseous fuel pipeline strile-back respectively with center fuel rifle channel, each L-type spray gun (2) entrance and
The entrance of each main gas gun (1) is connected.
2. low nitrogen burner according to claim 1, which is characterized in that the exit of center fuel cylinder (3) is arranged
There is disk bluff body.
3. low nitrogen burner according to claim 1, which is characterized in that L-type strile-back spray gun (2) number be 3-10
Only, and each L-type spray gun (2) that strile-backs is uniformly distributed circumferentially.
4. low nitrogen burner according to claim 1, which is characterized in that the number of main gas gun (1) is 5-20
Only.
5. low nitrogen burner according to claim 4, which is characterized in that each main gas gun (1) is circumferentially uniform
Distribution.
6. low nitrogen burner according to claim 1, which is characterized in that each L-type strile-back spray gun (2) nozzle to
The axis of interior bending and face center fuel cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550878.0A CN108518677B (en) | 2018-05-31 | 2018-05-31 | Low nitrogen gas combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550878.0A CN108518677B (en) | 2018-05-31 | 2018-05-31 | Low nitrogen gas combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108518677A true CN108518677A (en) | 2018-09-11 |
| CN108518677B CN108518677B (en) | 2023-09-12 |
Family
ID=63426962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550878.0A Active CN108518677B (en) | 2018-05-31 | 2018-05-31 | Low nitrogen gas combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518677B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724083A (en) * | 2019-02-22 | 2019-05-07 | 西安西热锅炉环保工程有限公司 | A kind of low nitrogen burner of flame profile automatic adjustment |
| CN113048478A (en) * | 2021-04-01 | 2021-06-29 | 西安交大思源科技股份有限公司 | Low-calorific-value combustible gas cyclone low-nitrogen burner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607025A (en) * | 2011-12-06 | 2012-07-25 | 上海诺特飞博燃烧设备有限公司 | Gas back-jetting pre-mixing low-NOx combustion apparatus and combustion method of combustion apparatus |
| CN204962763U (en) * | 2015-09-21 | 2016-01-13 | 上海华之邦科技股份有限公司 | Ultralow NOx gas combustion ware |
| CN105351925A (en) * | 2015-11-09 | 2016-02-24 | 上海华之邦科技股份有限公司 | Low-emission gas combustion furnace and combustion air preparation method thereof |
| CN207112806U (en) * | 2017-07-24 | 2018-03-16 | 福州华夏蓝天信息科技有限公司 | A kind of low nitrogen burner |
-
2018
- 2018-05-31 CN CN201810550878.0A patent/CN108518677B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607025A (en) * | 2011-12-06 | 2012-07-25 | 上海诺特飞博燃烧设备有限公司 | Gas back-jetting pre-mixing low-NOx combustion apparatus and combustion method of combustion apparatus |
| CN204962763U (en) * | 2015-09-21 | 2016-01-13 | 上海华之邦科技股份有限公司 | Ultralow NOx gas combustion ware |
| CN105351925A (en) * | 2015-11-09 | 2016-02-24 | 上海华之邦科技股份有限公司 | Low-emission gas combustion furnace and combustion air preparation method thereof |
| CN207112806U (en) * | 2017-07-24 | 2018-03-16 | 福州华夏蓝天信息科技有限公司 | A kind of low nitrogen burner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724083A (en) * | 2019-02-22 | 2019-05-07 | 西安西热锅炉环保工程有限公司 | A kind of low nitrogen burner of flame profile automatic adjustment |
| CN113048478A (en) * | 2021-04-01 | 2021-06-29 | 西安交大思源科技股份有限公司 | Low-calorific-value combustible gas cyclone low-nitrogen burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108518677B (en) | 2023-09-12 |
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