CN105318328B - The interior more flame low NOX gas burners of circulation - Google Patents
The interior more flame low NOX gas burners of circulation Download PDFInfo
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- CN105318328B CN105318328B CN201510018961.XA CN201510018961A CN105318328B CN 105318328 B CN105318328 B CN 105318328B CN 201510018961 A CN201510018961 A CN 201510018961A CN 105318328 B CN105318328 B CN 105318328B
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- air
- flame
- inner liner
- burner inner
- compression ring
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Abstract
The invention discloses the interior more flame low NOX gas burners of circulation, the present invention includes rotary flange, burner inner liner；Described burner inner liner is fixedly connected with rotary flange；It is provided with burner inner liner：Eddy flow tray, distribution compression ring, central tube bluff body, air intake branch, air inlet pipe, interface tracheae, ignition electrode, UV flame detectors；One end of described air inlet pipe is connected with interface tracheae, the other end is split into four air intake branches and a central tube bluff body, and air intake branch is connected with distribution compression ring；In the front end fixed in position ignition electrode of distribution compression ring；Described eddy flow tray is fixedly mounted in air inlet pipe at air intake branch；Oblique vane is mounted with eddy flow tray, every middle part of blade has an axial circular hole.
Description
Technical field
The present invention relates to the interior more flame low NOX gas burners of circulation, more particularly to the interior more flame low NOX combustion gas of circulation
The combustion head of burner.
Background technology
With deepening continuously for reform and opening-up, industrialization degree aggravates, and more ground winter-spring season in the whole nation was often serious in recent years
Haze shrouds, air quality index (AQI) quick-fried table again and again, is that the terms such as the PM2.5 of professional domain term are old hundred already originally
What's frequently heard can be repeated in detail for surname, we have appreciated that how seriousness of the haze to body harm, improve air quality, how preferably to change
The problem of kind environment is very urgent at present.Country reduces flue dust to environment-protecting industrial pay attention to day by day, new standard limit of smog release
Concentration, SO2、NOX, CO discharge capacity.Because national policy is to the improve of emission request and the extensive application of various combustion gas, develop
Low NOXBurner turn into energy-conservation with environmental protection needs.
Gas burner is the key core part of burner.
Existing burner, is burnt using diffusion type, and in order to ensure that fuel sufficiently burns, burner typically takes fuel
Preferable design method is mixed with air, this combustion system, flame temperature is high, but easily produces NOX.How a kind of drop is designed
Low oxygen concentration, further reduce NOX, while the clean-burning combustion head of guarantee fuel is pendulum in face of science and technology personnel again
The problem of urgent need to resolve.
The content of the invention
The technical problem to be solved in the invention there is provided the interior more flame low NOX gas burners of circulation, it is intended to solve
The problem of above-mentioned.
To achieve the above object, the present invention provides following technical scheme：
The present invention includes：Rotary flange, burner inner liner；Described burner inner liner is fixed with rotary flange；Include in burner inner liner：
Eddy flow tray, distribution compression ring, central tube bluff body, air intake branch, air inlet pipe, interface tracheae, ignition electrode, UV flame detectors；It is described
Air inlet pipe one end be connected with interface tracheae, the other end is split into more than two air intake branches and a central tube bluff body, enter
Gas branch pipe is connected with distribution compression ring；In the front end fixed in position ignition electrode of distribution compression ring；Described eddy flow tray be fixedly mounted on into
On tracheae at air intake branch；
Compared with prior art, the beneficial effects of the invention are as follows：Using compression ring and eddy flow tray is distributed, combustion gas is set to exist with air
Internal and external cycle two parts mixing of compression ring is distributed, outer ring eddy flow is formed, multiple combustion zones of inner ring axle stream, reduces flame temperature
Degree, while necking petal-shaped burner inner liner is taken, outer ring swirl flame is divided into 12 shallow bid flames, increase flame area of dissipation,
Flame peak temperature is reduced, while the uncombusted flue gas of burner inner liner necking backflow returns to burner inner liner center, heart pipe in a mixer
Under the flow-disturbing effect of bluff body, mixed again with central shaft stream wind, flue gas is formed backflow in the combustion head part Enough of burner
Area, smoke backflow is allowed into flame, reduce oxygen concentration, further reduce NOX, while in turn ensure that the abundant burning of fuel.
As the further scheme of the present invention：Eight oblique vanes are mounted with eddy flow tray, every middle part of blade has one
Only axial circular hole.
As the further scheme of the present invention：The burner inner liner front portion has provided with gap, breach in taper necking, necking
Preferably 12.
As further scheme of the invention：The venthole (41) of the radially air-flow is 18, radial centripetal
The venthole (42) of air-flow is 3.
Compared with prior art, the beneficial effects of the invention are as follows：
Using compression ring and eddy flow tray is distributed, combustion gas is mixed with the Internal and external cycle two parts of air in distribution compression ring, formed outer
Eddy flow is enclosed, multiple combustion zones of inner ring axle stream, reduces flame temperature, while takes necking petal-shaped burner inner liner, makes outer ring
Swirl flame is divided into 12 shallow bid flames, increases flame area of dissipation, reduces flame peak temperature, while burner inner liner necking flows back
Uncombusted flue gas return to burner inner liner center, in a mixer heart pipe bluff body flow-disturbing effect under, mixed again with central shaft stream wind
Close, flue gas is formed recirculating zone in the combustion head part Enough of burner, allow smoke backflow into flame, reduce oxygen concentration, enter
One step reduces NOX, while in turn ensure that the abundant burning of fuel.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 A direction views (removing burner inner liner)；
Fig. 3 is B-B direction view in Fig. 1 (i.e. burner inner liner spout schematic diagram)；
Fig. 4 is the A direction views of eddy flow tray；
In figure：1- rotary flanges
2- burner inner liners
3- eddy flow trays
4- distributes compression ring
5- central tube bluff bodies
6- air intake branches
7- air inlet pipe
8- interface tracheaes
9- ignition electrodes
10-UV flame detectors
21- neckings
22- breach
31- oblique vanes
32- air-flow circular holes
The venthole of 41- radially air-flows
The venthole of 42- radial centripetal air-flows.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
From Fig. 1, Fig. 2, Fig. 3, Fig. 4：The present invention includes：Rotary flange 1, burner inner liner 2；Described burner inner liner 2 and rotation
Turned flange 1 is fixed；Include in burner inner liner 2：Eddy flow tray 3, distribution compression ring 4, central tube bluff body 5, air intake branch 6, air inlet pipe 7,
Interface tracheae 8, ignition electrode 9, UV flame detectors 10；One end of described air inlet pipe 7 is connected with interface tracheae 8, the other end point
Four air intake branches 6 and a central tube bluff body 5 are flowed into, air intake branch 6 is connected with distribution compression ring 4；In the front end of distribution compression ring
Fixed in position ignition electrode 9；Described eddy flow tray 3 is fixedly mounted in air inlet pipe 7 at the shunting of air intake branch 6；In eddy flow tray 3
On be mounted with eight oblique vanes 31 for having certain inclination angle, every middle part of blade has an axial flow circular hole 32.
There are 18 radially ventholes of the venthole 41 of air-flow and 3 radial centripetal air-flows on the distribution compression ring
42；
The described front portion of burner inner liner 2 has provided with taper necking 21, is provided with 12 breach 22 in necking 21, makes burner inner liner necking
Petal-shaped is formed, mixed airflow is again broken down into draft.
Combustion gas flows through interface tracheae, air inlet pipe, is divided into four strands to four air intake branches in air inlet pipe end, enters back into distribution
Compression ring, sprayed from the diverging venthole of distribution compression ring and centripetal venthole, air flows through from the oblique vane of eddy flow tray respectively, shape
Into outer ring swirling eddy, flow through to form axial flow from middle part axial circular hole.Outer ring swirled air air-flow comes out with distribution ring
Radially fuel gas flow mixed combustion, the small torch of multiply is divided into by the petal-shaped breach of burner inner liner, increase flame surface dissipates
Hot area, reduce flame peak temperature.Because combustion gas is fast in the position flow velocity of venthole, while in this region, only firing
Gas edge has combustion air, it is therefore prevented that tempering.
The flow-disturbing of a small amount of combustion gas that central shaft stream wind and the centripetal venthole of distribution ring come out heart pipe bluff body in a mixer is made
With lower mixed combustion, while there is larger inclination angle combustion barrel front portion, can make the uncombusted smoke backflow of outer perimeter section to flame of centre
Area, inside smoke recycling is formed, reduces the oxygen concentration of flame of centre, while also reduce flame temperature, further reduce NOX
Generation.
Advantages of the present invention are：
1st, combustion gas and air blend the concentration field to be formed and are easy to light a fire, suitable for different combustion gas.
2nd, the stable flame of spiral-flow type has ensured the enough stability of flame, so as to ensure that burner reliable and stable ground work
Make.Both the danger without tempering, and without de- fiery failure, improve the security during burner use.
3rd, the main flame in outer ring is divided into multiply flammule by the necking of petal-shaped burner inner liner with flame cutting techniques, and flame dissipates
Hot area increase, reduces flame peak temperature, reduces thermal NO X generation.
4th, fuel and air take it is rear it is mixing progressively burn, make excess air coefficient be less than 1.15, realize efficient hypoxemia
Burning, burning is complete, reaches existing high burning efficiency, reduces CO, NO againXGenerate and discharge Deng dusty gas.Good blending is kept away
It is the prerequisite for reducing CO, NOx generation to exempt from high-temperature oxygen-enriched.
5th, unique burner inner liner necking by partial fume reflowed combustion, reduce flame of centre temperature, reduce further CO,
NOXGeneration.
6th, using this structure, range of flame is wide, and load regulation rate reaches 6:1, be more suitable for China's gas kind extensively (my god
Right air-liquid liquefied oil gas, artificial coal gas) the special national conditions that easily fluctuate of source of the gas.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (5)
1. the more flame low NOX gas burners of circulation in a kind of, including：Rotary flange (1), burner inner liner (2)；Described burner inner liner
(2) with rotary flange (1) fixed-link；Be provided with burner inner liner (2) eddy flow tray (3), distribution compression ring (4), central tube bluff body (5),
Air intake branch (6), air inlet pipe (7), interface tracheae (8), ignition electrode (9), UV flame detectors (10)；Described air inlet pipe (7)
One end communicated with interface tracheae (8) be connected, the other end is split into two and only reaches above air intake branch (6) and a central tube bluff body
(5), air intake branch (6) is connected with distribution compression ring (4)；In the front end fixed in position ignition electrode (9) of distribution compression ring；
There are the venthole (41) of radially air-flow and the venthole (42) of radial centripetal air-flow on described distribution compression ring (4)；
Described eddy flow tray (3) is fixedly mounted in air inlet pipe (7) at air intake branch (6) shunting；Burner inner liner (2) front portion has
Provided with taper necking (21), gap (22) in necking (21).
2. the interior more flame low NOX gas burners of circulation according to claim 1, it is characterised in that：Radially air-flow
Venthole (41) be 18, the venthole (42) of radial centripetal air-flow is 3.
3. the interior more flame low NOX gas burners of circulation according to claim 1, it is characterised in that：Breach (22) is 12
Only.
4. the interior more flame low NOX gas burners of circulation according to claim 1, it is characterised in that：Eddy flow tray is pacified on (3)
It is equipped with the oblique vane (31) at certain inclination angle.
5. the interior more flame low NOX gas burners of circulation according to claim 4, it is characterised in that：Oblique vane (31)
Middle part be provided with axial flow circular hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018961.XA CN105318328B (en) | 2015-01-15 | 2015-01-15 | The interior more flame low NOX gas burners of circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018961.XA CN105318328B (en) | 2015-01-15 | 2015-01-15 | The interior more flame low NOX gas burners of circulation |
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| Publication Number | Publication Date |
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| CN105318328A CN105318328A (en) | 2016-02-10 |
| CN105318328B true CN105318328B (en) | 2017-11-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168378B (en) * | 2016-07-11 | 2018-03-13 | 北京航空航天大学 | One kind premix is classified strong eddy flow low stain gas burner |
| CN106196051B (en) * | 2016-07-19 | 2018-05-18 | 北京航空航天大学 | A kind of tubule premixed swirl low stain gas burner |
| CN106765090B (en) * | 2016-12-23 | 2023-09-01 | 海湾环境科技（北京）股份有限公司 | Burner with a burner body |
| CN107101225B (en) * | 2017-05-16 | 2023-01-10 | 新奥能源动力科技（上海）有限公司 | Swirl structure of combustor, combustor and gas turbine |
| CN107036094A (en) * | 2017-06-06 | 2017-08-11 | 河北巨川节能科技有限公司 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head |
| CN107655003A (en) * | 2017-10-25 | 2018-02-02 | 滁州蓝擎装备有限公司 | A kind of eddy flow microring array combustor and combustion method |
| CN110440261A (en) * | 2018-05-02 | 2019-11-12 | 上海凌云瑞升燃烧设备有限公司 | The low NOx gas burner injection apparatus of disperse free flame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089467A (en) * | 2006-06-13 | 2007-12-19 | 上海凌云瑞升燃烧设备有限公司 | Low nitrogen oxide gas burner |
| CN102537959A (en) * | 2012-02-28 | 2012-07-04 | 东方电气集团东方锅炉股份有限公司 | Rotational flow and direct current combined gas burner |
| CN202546767U (en) * | 2012-04-24 | 2012-11-21 | 岳阳远东节能设备有限公司 | Coke-oven gas combustor |
| CN203744252U (en) * | 2014-02-19 | 2014-07-30 | 陈立均 | Low-pollution-zone flue gas recirculation low nitrogen oxide burner |
| CN204438121U (en) * | 2015-01-15 | 2015-07-01 | 上海凌云瑞升燃烧设备有限公司 | Inner eycle many flame low NOX gas burner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090249789A1 (en) * | 2008-04-08 | 2009-10-08 | Baifang Zuo | Burner tube premixer and method for mixing air and gas in a gas turbine engine |
-
2015
- 2015-01-15 CN CN201510018961.XA patent/CN105318328B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089467A (en) * | 2006-06-13 | 2007-12-19 | 上海凌云瑞升燃烧设备有限公司 | Low nitrogen oxide gas burner |
| CN102537959A (en) * | 2012-02-28 | 2012-07-04 | 东方电气集团东方锅炉股份有限公司 | Rotational flow and direct current combined gas burner |
| CN202546767U (en) * | 2012-04-24 | 2012-11-21 | 岳阳远东节能设备有限公司 | Coke-oven gas combustor |
| CN203744252U (en) * | 2014-02-19 | 2014-07-30 | 陈立均 | Low-pollution-zone flue gas recirculation low nitrogen oxide burner |
| CN204438121U (en) * | 2015-01-15 | 2015-07-01 | 上海凌云瑞升燃烧设备有限公司 | Inner eycle many flame low NOX gas burner |
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| CN105318328A (en) | 2016-02-10 |
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