CN110056873A - A kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value - Google Patents
A kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value Download PDFInfo
- Publication number
- CN110056873A CN110056873A CN201910195481.9A CN201910195481A CN110056873A CN 110056873 A CN110056873 A CN 110056873A CN 201910195481 A CN201910195481 A CN 201910195481A CN 110056873 A CN110056873 A CN 110056873A
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- combustion
- spray gun
- gas
- steady
- fuel gas
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Classifications
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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
- F23D14/20—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
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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
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Be used for kiln or boiler the invention discloses one kind, the low nitrogen combustion apparatus that lower heat of combustion fuel gas uses, the burner by combustion gas distribution tank, main combustion spray gun, surely fire that spray gun, homogenizing plate, surely combustion disk, rotational flow generator forms.Combustion gas uniformly flows into a steady combustion spray gun and main combustion spray gun after distribution tank, and is sent into combustion chamber by each nozzle.Combustion air is entered inside burner by homogenizing plate, then respectively by surely firing disk, cyclone injection combustion chamber, with the steady combustion gas mixing burning firing spray gun and main combustion spray gun and being sent into.This combustion system feeds fuel and combustion air classification in combustion chamber, is conducive to the temperature for controlling fuel gas buring, achievees the purpose that reduce NO_x formation to the greatest extent.Simultaneously as ensuring that a certain amount of combustion gas and combustion air in the timely ignition of burner outlet near axis, stablize burning suitable for fuel gas with low heat value.
Description
Technical field
The present invention relates to fuel gas buring technical field, relate more specifically to the fuel gas with low heat value that a kind of kiln or boiler use
Low nitrogen combustion apparatus.
Background technique
Combustion gas has the advantages that environmental-friendly, dust and SO in the flue gas generated after burning as a kind of common fuel2
Concentration of emission is lower, and major pollutants are the N in the N element itself contained or air2It is raw with flue gas under the high temperature conditions
At nitrogen oxides (NOx).
Since specific ingredient is different, combustion characteristics and Pollutant Formation have bigger difference for various combustion gas.Blast furnace coal
The combustion gas such as gas, producer gas, carbon black tail gas are using CO as principal combustible components, and contained non-combustible gas is more, calorific value
Lower (that is, the heat released after unit combustion gas full combustion is few).
Due to fuel gas with low heat value be relatively inaccessible to stablize burning state, generally use strengthen kindling means make its
Quick release goes out most of heat in smaller space, thus is easy to cause the generation of localized high temperature regions, and finally cause flue gas
Middle NOx generates the rising of concentration, generates pollution to environment.
In practical application, control fuel gas buring process generates the main means of NOx amount are as follows: reduces the oxygen at fuel gas buring initial stage
Amount suitably reduces ignition temperature.Common low nitrogen gas burner mostly uses flue gas recirculating technique, mixes in combustion air
Part low-temperature flue gas makes the O in flame2Concentration reduces, and ignition temperature is controlled, and then inhibits the production quantity of NOx.But for
Fuel gas with low heat value, this method can destroy the stability of fuel gas buring, cause risk of putting out a fire.
Summary of the invention
The invention proposes a kind of burners suitable for lower heat of combustion combustion gas, can be applicable on kiln or boiler,
The production quantity of NOx can be effectively controlled under the premise of ensuring efficient, stable burning.Fuel gas with low heat value use is proposed to reach
Safety and environmental-protecting performance purpose.
To achieve the goals above, burner provided by the invention includes: combustion gas distribution tank, and entrance is connected to combustion gas point
Steady combustion spray gun and several main combustion spray guns, the combustion head of each spray gun front end and the burner port arranged thereon in distribution tank, combustion-supporting sky
The homogenizing plate of gas inlet, the steady combustion disk and rotational flow generator in exit.
It is further described that combustion gas is by entering each steady combustion spray gun and main combustion spray gun after distribution tank, it is ensured that in steady combustion spray gun
Gas quantity, and each main combustion spray gun gas flow is evenly distributed.Combustion air enters in burner after passing through homogenizing plate
Then portion enters combustion chamber by surely combustion disk and eddy flow tray respectively, burns with combustion gas mixing.
The beneficial effects of the present invention are: combustion gas is sent into combustion chamber by surely firing spray gun and multiple main combustion spray guns, realize
The multiple spot feeding of fuel, fractional combustion are conducive to the production quantity for controlling NOx.Combustion air is by homogenizing plate even into burning
Then device is burnt by surely firing the combustion gas mixing that disk and cyclone are sent into steady combustion spray gun and main combustion spray gun respectively, is realized
Researched of Air Staging Combustion Burning Pulverized Coal is conducive to the production quantity for controlling NOx, and ensure burner outlet near axis always to have a certain amount of combustion
Gas and the combustion air of rotation are mixed and burned, and achieve the purpose that stablize burning.
Detailed description of the invention
Invention invention is further described with reference to the accompanying drawings and detailed description.
Attached drawing is a kind of low nitrogen combustion apparatus schematic diagram suitable for fuel gas with low heat value.
In figure: 01, burner, 11, combustion gas distribution tank, 12, main combustion spray gun, 13, surely fire spray gun, 120, main gas injection
Head, 130, surely fire spray head, 131, burner port, 21, combustion air homogenizing plate, 22, combustion air rotational flow generator, 23, surely fire disk.
Specific embodiment
As shown in attached drawing, a kind of low NO 01 suitable for fuel gas with low heat value, by 11,6 ~ 12 masters of combustion gas distribution tank
Fire spray gun 12,1 steady combustion spray guns 13, combustion air homogenizing plate 21, rotational flow generator 22, steady combustion disk 23 and the outlet of main combustion spray gun 12
Main combustion nozzle 120, the steady steady combustion nozzle 130 for firing lance outlet and several burner ports 131 being distributed thereon form.
When burner is run, combustion gas initially enters distribution tank 11, and then part, which enters, is located at distribution tank central outlet
Steady combustion spray gun 13 entrance, and several burner ports 131 by surely firing on nozzle 130 enter the combustion chamber of boiler or kiln
It is interior, so that it is guaranteed that burner outlet axes nearby have a certain amount of combustion gas to stablize burning always, avoid the risks such as flame-out.Remaining
Combustion gas even into each main combustion spray gun 12, and by its outlet main combustion nozzle 120 with certain flow angle evenly into
In combustion chamber, to achieve the purpose that fractional combustion, peak flame temperature is controlled, and then inhibit a large amount of generations of NOx.
Combustion air is by homogenizing plate 21 even into burner 01, and then part is exported by being located at burner
The combustion gas that the steady combustion disk 23 of near axis installation is sent out with the burner port 131 arranged on steady combustion nozzle 130 at an angle is mixed
Combination burning, it is ensured that the stability of flame.After remaining combustion air generates rotation by the rotational flow generator of surely combustion disk surrounding arrangement
Into combustion chamber, and the combustion gas sent out with main combustion nozzle 120 is gradually mixed and burned.
The above, embodiment is only that preferred embodiments of the present invention will be described, not to of the invention
Range is defined, and under the premise of not departing from the spirit of the technology of the present invention, this field engineers and technicians are to skill of the invention
The various changes and improvements that art scheme is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (5)
1. a kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value, by combustion gas distribution tank, main combustion spray gun, spray gun, combustion-supporting is surely fired
Airflow homogenizing plate, rotational flow generator, steady combustion disk composition, it is characterized in that: combustion gas passes through after distribution tank, it is ensured that a part enters steady combustion
Spray gun, rest part realize the fractional combustion of combustion gas even into several main combustion spray guns；Combustion air part passes through position simultaneously
Steady combustion disk around surely combustion spray gun enters combustion chamber, and rest part is by entering combustion by surrounding after rotational flow generator generation rotation
Burn room.
2. a kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value as described in claim 1, it is characterized in that: surely combustion spray gun position
In arranging multiple burner ports on the axis of burner, on outlet nozzle, combustion gas is entered at different angles by burner port
In combustion chamber.
3. a kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value as described in claim 1, it is characterized in that: several main combustions
Spray gun is distributed in steady combustion spray gun surrounding, and outlet is equipped with main combustion nozzle, and nozzle has certain angular displacement, so that combustion gas is not with
Same angle enters combustion chamber.
4. a kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value as described in claim 1, it is characterized in that: surely combustion disk is located at
On steady combustion nozzle, interval is furnished with flow deflector on steady combustion disk, and combustion air and burner port can be made to be sent into combustion chamber correspondingly.
5. a kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value as described in claim 1, it is characterized in that: rotational flow generator
Positioned at steady combustion disk surrounding, rotational flow generator makes combustion air start to generate rotation inside burner, into combustion chamber after band
Move combustion gas rotation, the mixed combining combustion that main combustion nozzle projects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910195481.9A CN110056873A (en) | 2019-03-15 | 2019-03-15 | A kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910195481.9A CN110056873A (en) | 2019-03-15 | 2019-03-15 | A kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056873A true CN110056873A (en) | 2019-07-26 |
Family
ID=67317139
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910195481.9A Withdrawn CN110056873A (en) | 2019-03-15 | 2019-03-15 | A kind of low nitrogen combustion apparatus suitable for fuel gas with low heat value |
Country Status (1)
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| CN (1) | CN110056873A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454785A (en) * | 2019-08-16 | 2019-11-15 | 乔永 | A kind of low NO |
| CN110657433A (en) * | 2019-09-11 | 2020-01-07 | 向顺华 | Gas cladding type low-nitrogen non-oxidation burner |
| CN111780094A (en) * | 2020-07-17 | 2020-10-16 | 北京泷涛环境科技有限公司 | Deviating equivalence ratio ultra-low nitrogen combustion device and combustion method |
| CN114111034A (en) * | 2021-11-09 | 2022-03-01 | 同济大学 | A temperature-adjustable low-nitrogen hot air nozzle device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004177037A (en) * | 2002-11-28 | 2004-06-24 | Osaka Gas Co Ltd | Combustion equipment |
| CN205227331U (en) * | 2015-11-18 | 2016-05-11 | 上海齐耀热能工程有限公司 | Flue gas inner loop low NOx burner |
| CN205504983U (en) * | 2016-04-01 | 2016-08-24 | 北京佳德昌科技有限责任公司 | Gas recirculation low NOx burner in combustion -supporting wind injection type stove |
| CN207019063U (en) * | 2017-07-19 | 2018-02-16 | 上海华之邦科技股份有限公司 | A kind of low heat value/low-pressure gas burner |
| CN207378847U (en) * | 2017-11-02 | 2018-05-18 | 武汉东晟捷能科技有限公司 | A kind of yellow phosphoric tail gas low NO |
| CN208332262U (en) * | 2018-05-31 | 2019-01-04 | 西安西热锅炉环保工程有限公司 | Low nitrogen burner |
-
2019
- 2019-03-15 CN CN201910195481.9A patent/CN110056873A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004177037A (en) * | 2002-11-28 | 2004-06-24 | Osaka Gas Co Ltd | Combustion equipment |
| CN205227331U (en) * | 2015-11-18 | 2016-05-11 | 上海齐耀热能工程有限公司 | Flue gas inner loop low NOx burner |
| CN205504983U (en) * | 2016-04-01 | 2016-08-24 | 北京佳德昌科技有限责任公司 | Gas recirculation low NOx burner in combustion -supporting wind injection type stove |
| CN207019063U (en) * | 2017-07-19 | 2018-02-16 | 上海华之邦科技股份有限公司 | A kind of low heat value/low-pressure gas burner |
| CN207378847U (en) * | 2017-11-02 | 2018-05-18 | 武汉东晟捷能科技有限公司 | A kind of yellow phosphoric tail gas low NO |
| CN208332262U (en) * | 2018-05-31 | 2019-01-04 | 西安西热锅炉环保工程有限公司 | Low nitrogen burner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454785A (en) * | 2019-08-16 | 2019-11-15 | 乔永 | A kind of low NO |
| CN110657433A (en) * | 2019-09-11 | 2020-01-07 | 向顺华 | Gas cladding type low-nitrogen non-oxidation burner |
| CN110657433B (en) * | 2019-09-11 | 2023-12-29 | 上海炉艺智能科技发展有限公司 | Fuel gas cladding type low-nitrogen non-oxidation burner and use method thereof |
| CN111780094A (en) * | 2020-07-17 | 2020-10-16 | 北京泷涛环境科技有限公司 | Deviating equivalence ratio ultra-low nitrogen combustion device and combustion method |
| CN114111034A (en) * | 2021-11-09 | 2022-03-01 | 同济大学 | A temperature-adjustable low-nitrogen hot air nozzle device |
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Application publication date: 20190726 |