CN110375300A - A kind of burner of low-nitrogen oxide discharging - Google Patents
A kind of burner of low-nitrogen oxide discharging Download PDFInfo
- Publication number
- CN110375300A CN110375300A CN201910573285.0A CN201910573285A CN110375300A CN 110375300 A CN110375300 A CN 110375300A CN 201910573285 A CN201910573285 A CN 201910573285A CN 110375300 A CN110375300 A CN 110375300A
- Authority
- CN
- China
- Prior art keywords
- combustion air
- center
- burner
- exhaust gases
- flue gas
- 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.)
- Pending
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000007599 discharging Methods 0.000 title claims abstract description 19
- 239000000446 fuel Substances 0.000 claims abstract description 88
- 238000002485 combustion reaction Methods 0.000 claims abstract description 59
- 239000003546 flue gas Substances 0.000 claims abstract description 50
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 43
- 230000008676 import Effects 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 12
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000012895 dilution Substances 0.000 abstract description 2
- 238000010790 dilution Methods 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
-
- 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
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of burner of low-nitrogen oxide discharging, including center fuel passage, center fuel passage outer circle circumferential direction is provided with the first combustion air channel, first combustion air channel outer circle circumferential direction is provided with first circulation exhaust gases passes, first circulation exhaust gases passes outer circle circumferential direction is provided with the second combustion air channel, second combustion air channel outer circle circumferential direction is provided with second circulation exhaust gases passes, second circulation exhaust gases passes outer circle circumferential direction is provided with third circulating flue gas channel；On the one hand, circulating flue gas is actively mixed with fuel, and on the other hand, circulating flue gas is actively mixed with combustion air, and fuel concentration and the dilution of combustion air oxygen concentration, to reduce ignition temperature, reduce NO to inhibit burning velocity of the fuel in boiler and concentrate heat releasexProduction quantity.
Description
Technical field
The invention belongs to environmentally friendly field of combustion technology more particularly to a kind of combustions of low-nitrogen oxide discharging
Burner.
Background technique
In recent years, the nitrogen oxide emission rapid increase of China's energy relevant departments, national nitrogen oxides row in 2000
It is high-volume 12.1X106t, increased to 19.1X106t by 2005, increase by 10% every year.Further subtract if do not taken
Row's measure, with Guomei's expanding economy, the quickening of population growth and urbanization process, the nitrogen oxide emission in following China
It will continue to increase, according to current development trend, be up to 35.4X106t to 2030 annual emissions, be bound to cause serious
Environment influences, therefore, it is necessary to reinforce discharged nitrous oxides control conscientiously.
Natural gas is well-known clean fuel, but the NO that combustion of natural gas generatesxDischarge amount is big, NOxIt is natural steam pot
The main pollutant of furnace.Environmental Protection in China department requires the pollutant emission that coal dust firing generates higher and higher at present.For this purpose,
Reduce one of the main target that nitrogen oxide emission is current Combustion System of Boiler Burning Fine design.
The gas fired-boiler of any low nitrogen measure is not used, and NOx emission is up to 600 ~ 800mg/Nm3, existing low nitrogen gas burner
NO may be implementedx<200mg/Nm3.Using flue gas recirculation measure outside furnace, NO is generally can be achieved in existing gas fired-boilerxDischarge <
80mg.But the numerical value still has the space further lowered,
For the discharge amount for reducing nitrogen oxides, on the one hand, in boiler design, reduce the temperature in burner hearth as far as possible and reduce possibility
The reasons such as the high-temperature area of generation, especially flow field change and the local high temperature zone generated.Has relatively uniform combustion zone
Domain guarantees the burning of fuel, reduces peak flame temperature.On the other hand, fuel type NOXWith the reduction of excess air coefficient
And it reduces, fuel type NOXIt is closely related with oxygen concentration in the thermal decomposition product and flame of fuel, if in combustion centre, main burning area
Anoxic can make most fugitive constituent nitrogen and part coke N be converted into N2, to reduce the NO in flue gasX。
Combustion system exists following insufficient in the prior art:
The method for the flue gas recirculation that boiler combustion system has generally used at present is using external or internal blower mostly
Low-temperature circulating flue gas is extracted into flame combustion chamber and participates in burning, but due to burner design problem, flue gas recycled with it is combustion-supporting
Air draught mixing is uneven, the temperature in burner hearth cannot be effectively reduced, flue gas is shorter in the burner hearth residence time.
Summary of the invention
The present invention is in burner internal to the layout designs of fuel channel, circulation cigarette channel and combustion air channel, on the one hand,
Combustion air channel cycle flue gas surrounds, and circulating flue gas is mixed with combustion air, for reducing the oxygen content of combustion air, reduces superfluous empty
Gas coefficient makes fuel burn in 1 reducing atmosphere of α <, can substantially reduce the NO in flue gasX.On the other hand,Fuel channel is followed
Ring flue gas surrounds, and circulating flue gas is mixed with fuel, for reducing ignition temperature, with the reduction of temperature, thermal NOxGeneration
Amount also reduces.
In order to achieve the above object, The technical solution adopted by the invention is as follows:
A kind of burner of low-nitrogen oxide discharging, including center fuel passage are set around center fuel passage outer circle circumferential direction
It is equipped with the first combustion air channel, the first combustion air channel outer circle circumferential direction is provided with first circulation exhaust gases passes, around the
One circulating flue gas channel outer circle circumferential direction is provided with the second combustion air channel, is arranged around the second combustion air channel outer circle circumferential direction
There are second circulation exhaust gases passes, second circulation exhaust gases passes outer circle circumferential direction is provided with third circulating flue gas channel；
First Series Fuel lance is provided in first circulation exhaust gases passes, the third circulating flue gas is provided with second in channel
Series of fuels spray gun.
Further, center fuel passage, the first combustion air channel, first circulation exhaust gases passes, the second combustion air channel,
The outlet of second circulation exhaust gases passes, third circulating flue gas channel, First Series Fuel lance, second series Fuel lance is same
In one plane.
Further, center fuel passage is a metal tube, installs electric control valve in center fuel passage entrance,
Outlet fuel can burn always as altar lamp, it is ensured that furnace flame does not extinguish.
Further, the cross section in the first combustion air channel is combustion-supporting as the annulus in the center of circle, first using center fuel passage
The import in wind channel connects combustion-supporting wind regime, and outlet is provided with mixing wind wheel.
The cross section of first circulation exhaust gases passes is to lead to using center fuel passage as the annulus in the center of circle in first circulation flue gas
First Series Fuel lance, the import connection circulation cigarette of first circulation exhaust gases passes have been equidistantly positioned along annular direction in road
Gas.
Further, the cross section in the second combustion air channel is combustion-supporting as the annulus in the center of circle, second using center fuel passage
The import in wind channel connects combustion-supporting wind regime, and outlet is provided with mixing wind wheel.
Further, the cross section of second circulation exhaust gases passes is using center fuel passage as the annulus in the center of circle, and second follows
The import of ring exhaust gases passes connects circulating flue gas.
Further, the cross section in third circulating flue gas channel is using center fuel passage as the annulus in the center of circle, in third
It is equidistantly positioned second series Fuel lance along annular direction in circulating flue gas channel, the import in third circulating flue gas channel connects
Connect circulating flue gas.
Preferably, First Series Fuel lance is made of the equal-sized round tube in cross section, and each spray gun import connects fuel
Source.
Preferably, the second series Fuel lance is made of the equal-sized round tube in cross section, each spray gun import connection
Fuels sources.
Beneficial effects of the present invention are as follows:
The flow-guiding channel of burner internal design multiply circulating flue gas, on the one hand, circulating flue gas is actively mixed with fuel, another party
Face, circulating flue gas are actively mixed with combustion air, fuel concentration and the dilution of combustion air oxygen concentration, to inhibit fuel in boiler
Burning velocity and concentration heat release, so that ignition temperature is reduced, reduction NOx generation amount.
Circulating flue gas is autonomous channel, does not influence combustion air channel, and burner resistance is small, and required combustion air is consumed for fan
It can be small.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of the burner of low-nitrogen oxide discharging；
In figure,
1.Center fuel passage, 2. first combustion air channels, 3. first circulation exhaust gases passes, 4. second combustion air channels, 5.
Two circulating flue gas channels, 6. third circulating flue gas channels, 7. First Series Fuel lances, 8. second series Fuel lances.
Specific embodiment
The embodiment of the present invention is further illustrated with reference to the accompanying drawing.
Embodiment 1
With reference to Fig. 1, a kind of burner of low-nitrogen oxide discharging, including center fuel passage 1, surround center fuel passage outer circle
Circumferential direction is provided with the first combustion air channel 2, and the first combustion air channel 2 is the annulus using center fuel passage as the center of circle, import
Combustion-supporting wind regime is connected, outlet is provided with mixing wind wheel；Around the first combustion air channel, 2 outer circle circumferential direction is provided with first circulation cigarette
Gas channel 3, the cross section of first circulation exhaust gases passes 3 are using center fuel passage as the annulus in the center of circle, in first circulation flue gas
It is equidistantly positioned First Series Fuel lance 7 along annular direction in channel 3, the import connection of first circulation exhaust gases passes 3 follows
Ring flue gas.3 channel outer circle circumferential direction of first circulation flue gas is provided with the second combustion air channel 4, the second combustion air channel 4
Cross section is using center fuel passage as the annulus in the center of circle, and the import in the second combustion air channel 4 connects combustion-supporting wind regime, outlet setting
There is mixing wind wheel.Around the second combustion air channel, 4 outer circle circumferential direction is provided with second circulation exhaust gases passes 5, second circulation flue gas
The cross section in channel 5 is the import connection circulation cigarette of second circulation exhaust gases passes 5 using center fuel passage as the annulus in the center of circle
Gas.5 outer circle circumferential direction of second circulation exhaust gases passes is provided with third circulating flue gas channel 6, third circulating flue gas channel 6
Cross section is using center fuel passage as the annulus in the center of circle；Third circulating flue gas is provided with second series Fuel lance 8 in channel.
Center fuel passage 1, the first combustion air channel 2, first circulation exhaust gases passes 3, the second combustion air channel 4, second
The outlet in circulating flue gas channel 5, third circulating flue gas channel 6, First Series Fuel lance 7, second series Fuel lance 8 is same
In one plane.
Center fuel passage 1 is the metal tube of a diameter 20cm, installs electric control valve in center fuel passage entrance,
Its outlet fuel can burn always as altar lamp, it is ensured that furnace flame does not extinguish.
First Series Fuel lance 7 is made of 4 ~ 10 equal-sized round tubes in cross section, and the diameter of every spray gun is 0.5
~ 5.0cm, each spray gun import connect fuels sources.
Second series Fuel lance 8 is made of 8 ~ 20 equal-sized round tubes in cross section, and the diameter of every spray gun is 1.0
~ 3.0cm, each spray gun import connect fuels sources.
The application method of the burner of low-nitrogen oxide discharging is further illustrated below by embodiment.
Embodiment 2
A kind of burner of low-nitrogen oxide discharging, is passed through combustion air, lights the outlet and first, second of center fuel passage 1
The outlet of series of fuels spray gun, by adjusting the electric control valve of center fuel passage 1, outlet fuel can be used as altar lamp one
Direct combustion is burnt, it is ensured that furnace flame does not extinguish.Circulating fan draws the flue gas in burner hearth, electronic on the main smoke pipe of circulation by adjusting
Regulating valve adjusts the flow of circulating flue gas, and the first combustion air channel road 2 is surrounded by first circulation exhaust gases passes 3, the second combustion air
Channel 4 is surrounded by second circulation exhaust gases passes 5, is sufficiently mixed circulating flue gas with combustion air, reduces the oxygen content of combustion air.The
A series of Fuel lances are arranged in first circulation flue, and two series of fuels spray guns of drop are arranged in third cycle flue, make to follow
Ring flue gas is sufficiently mixed with fuel, reduces the burning velocity of fuel, to reduce temperature.
It using this technology, can save energy consumption, reduce NOxDischarge is realized under the operating condition of hot blast temperature≤250 DEG C
NOX<30mg/Nm3.With 25T boiler calculation, smoke discharge amount is about 22000Nm per hour3;Existing Burner Technology, in hot wind
Under the operating condition of temperature≤250 DEG C, NO can only be realizedxDischarge < 80mg Nm3；After super low NO, NOxDischarge < 30mg
Nm3； NOxIt is about 1.1Kg/h, annual separate unit 25T boiler NO that discharge, which is reduced,xDischarge amount reduces nearly 10 tons.
Claims (10)
1. a kind of burner of low-nitrogen oxide discharging, which is characterized in that including center fuel passage, surround center fuel passage
Outer circle circumferential direction is provided with the first combustion air channel, and the first combustion air channel outer circle circumferential direction is provided with first circulation flue gas
Channel is provided with the second combustion air channel around first circulation exhaust gases passes outer circle circumferential direction, outside the second combustion air channel
Circumferencial direction is provided with second circulation exhaust gases passes, and second circulation exhaust gases passes outer circle circumferential direction is provided with third circulation cigarette
Gas channel；
First Series Fuel lance is provided in the first circulation exhaust gases passes, the third circulating flue gas is provided in channel
Second series Fuel lance.
2. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that the center fuel is logical
Road, the first combustion air channel, first circulation exhaust gases passes, the second combustion air channel, second circulation exhaust gases passes, third recycle cigarette
Gas channel, First Series Fuel lance, second series Fuel lance outlet in the same plane.
3. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that the center fuel is logical
Road is a metal tube, and in center fuel passage entrance installation and adjustment valve, outlet fuel can burn always as altar lamp, really
Furnace flame is protected not extinguish.
4. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that first combustion air
The cross section in channel is using center fuel passage as the annulus in the center of circle, and the import in the first combustion air channel connects combustion-supporting wind regime, out
Mouth is provided with mixing wind wheel.
5. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that first circulation flue gas is logical
The cross section in road is to set in first circulation exhaust gases passes along annular direction is equidistant using center fuel passage as the annulus in the center of circle
It is equipped with First Series Fuel lance, the import of first circulation exhaust gases passes connects circulating flue gas.
6. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that second combustion air
The cross section in channel is using center fuel passage as the annulus in the center of circle, and the import in the second combustion air channel connects combustion-supporting wind regime, out
Mouth is provided with mixing wind wheel.
7. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that the second circulation cigarette
The cross section in gas channel is the import connection circulation cigarette of second circulation exhaust gases passes using center fuel passage as the annulus in the center of circle
Gas.
8. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that the third recycles cigarette
The cross section in gas channel be using center fuel passage as the annulus in the center of circle, it is equidistant along annular direction in third circulating flue gas channel
From second series Fuel lance is provided with, the import in third circulating flue gas channel connects circulating flue gas.
9. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that the First Series combustion
Material spray gun is made of the equal-sized round tube in cross section, and each spray gun import connects fuels sources.
10. a kind of burner of low-nitrogen oxide discharging according to claim 1, which is characterized in that the second series
The equal-sized round tube composition in Fuel lance cross section, each spray gun import connect fuels sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573285.0A CN110375300A (en) | 2019-06-28 | 2019-06-28 | A kind of burner of low-nitrogen oxide discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573285.0A CN110375300A (en) | 2019-06-28 | 2019-06-28 | A kind of burner of low-nitrogen oxide discharging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110375300A true CN110375300A (en) | 2019-10-25 |
Family
ID=68251114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910573285.0A Pending CN110375300A (en) | 2019-06-28 | 2019-06-28 | A kind of burner of low-nitrogen oxide discharging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110375300A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259577A1 (en) * | 2019-06-28 | 2020-12-30 | 浙江先创能源科技股份有限公司 | Combustor with low nitrogen oxide emission |
| CN114151790A (en) * | 2021-12-01 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Distributed flue gas internal and external dual-cycle coupling staged combustion equipment |
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| CN201145281Y (en) * | 2007-12-10 | 2008-11-05 | 刘武标 | Low pressure industrial waste gas combustor |
| CN202012913U (en) * | 2010-12-20 | 2011-10-19 | 洛阳瑞昌石油化工设备有限公司 | Novel flue gas self-reflux low-oxygen combustor |
| CN106838901A (en) * | 2017-02-27 | 2017-06-13 | 海湾环境科技（北京）股份有限公司 | Burner |
| CN207298942U (en) * | 2017-10-24 | 2018-05-01 | 南京金炼科技有限公司 | Injection flue gas type low nitrogen oxide burner |
| CN109099417A (en) * | 2018-09-18 | 2018-12-28 | 浙江三杰能源科技有限公司 | A kind of flue gas forces the low NOx combustion method and device of interior circulation |
| CN109737409A (en) * | 2018-12-28 | 2019-05-10 | 西安交通大学 | A kind of low NOx gas burner using semicircle backing wind |
| CN210463001U (en) * | 2019-06-28 | 2020-05-05 | 浙江先创能源科技股份有限公司 | Combustor with low emission of nitrogen oxides |
-
2019
- 2019-06-28 CN CN201910573285.0A patent/CN110375300A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145281Y (en) * | 2007-12-10 | 2008-11-05 | 刘武标 | Low pressure industrial waste gas combustor |
| CN202012913U (en) * | 2010-12-20 | 2011-10-19 | 洛阳瑞昌石油化工设备有限公司 | Novel flue gas self-reflux low-oxygen combustor |
| CN106838901A (en) * | 2017-02-27 | 2017-06-13 | 海湾环境科技（北京）股份有限公司 | Burner |
| CN207298942U (en) * | 2017-10-24 | 2018-05-01 | 南京金炼科技有限公司 | Injection flue gas type low nitrogen oxide burner |
| CN109099417A (en) * | 2018-09-18 | 2018-12-28 | 浙江三杰能源科技有限公司 | A kind of flue gas forces the low NOx combustion method and device of interior circulation |
| CN109737409A (en) * | 2018-12-28 | 2019-05-10 | 西安交通大学 | A kind of low NOx gas burner using semicircle backing wind |
| CN210463001U (en) * | 2019-06-28 | 2020-05-05 | 浙江先创能源科技股份有限公司 | Combustor with low emission of nitrogen oxides |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259577A1 (en) * | 2019-06-28 | 2020-12-30 | 浙江先创能源科技股份有限公司 | Combustor with low nitrogen oxide emission |
| CN114151790A (en) * | 2021-12-01 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Distributed flue gas internal and external dual-cycle coupling staged combustion equipment |
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