CN106765104A - A kind of biological fuel gas three swirler air distribution low NO - Google Patents
A kind of biological fuel gas three swirler air distribution low NO Download PDFInfo
- Publication number
- CN106765104A CN106765104A CN201611008510.9A CN201611008510A CN106765104A CN 106765104 A CN106765104 A CN 106765104A CN 201611008510 A CN201611008510 A CN 201611008510A CN 106765104 A CN106765104 A CN 106765104A
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- air
- steel pipe
- heat
- fuel gas
- secondary air
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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
-
- 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
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
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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 biological fuel gas three swirler air distribution low NO, including double-cone burner nozzles, tertiary air tangential vane is fixedly welded between the double-cone burner nozzles throat annulus interlayer, the bottom of the double-cone burner nozzles is fixedly connected with tertiary air case, the double-cone burner nozzles are fixedly connected with the top of Secondary Air outer tube by flange and bolt, the bottom of the Secondary Air outer steel pipe and the welded top of first and second bellows, and the heat-resisting inner sleeve steel pipe of Secondary Air is welded with the inside of Secondary Air outer steel pipe.The biological fuel gas three swirler air distribution low NO is classified the cooperation that eddy flow air distribution, fuel gas effectively organize combustion system, double-cone burner nozzles and first and second bellows by three times, the composite rate for improving air and fuel gas is reached, make burning more abundant, can realize low-nitrogen discharged simultaneously, really realize the effect of low nitrogen efficient burning.
Description
Technical field
The present invention relates to fuel gas buring air distribution technical field, specially a kind of low nitrogen combustion of biological fuel gas three swirler air distribution
Burner.
Background technology
Biological fuel gas three swirler air distribution low NO is that a kind of fuel gas supplies effective group by air classification
Knit burning and can realize reducing the burner of nitrogen oxides.It is less than stoichiometric proportion by controlling combustion zone excess air coefficient
Combustion method, will burn total air (a ＞ 1.A is excess air coefficient) along whole combustion zone main flow direction in batches
Feed successively, form " three-level " combustion zone.A ＜ 1 during first level air-distribution, combustion air amount is less than theoretical air requirement, causes anoxic shape
State and formed " fuel-rich " burning, so as to reduce combustion heat release amount and ignition temperature, also inhibits the generation of nitrogen oxides,
Nitrogen oxides through generating also can occur reduction reaction generation nitrogen with unburnt CH4, H2, C, OH in " fuel-rich " etc.
N2, realizes low nitrogen burning.A feeds remaining air capacity in afterbody as classification is constantly to 1 and more than 1 transition, makes fire
Due to anoxic, remaining unburned combustible gas and imperfect combustion product are able to aftercombustion in flame.At this moment, although a ＞ 1, but
Because flame temperature is decreased, without generating more nitrogen oxides.Each level air-distribution uses rotation air distribution mode, by force
Strong rotation, increased the degree of mixing of fuel gas and air, it is ensured that efficiency of combustion does not drop and improves on the contrary.Solve existing burning
Air register air is not high with the composite rate of fuel gas, burns insufficient, and localized hyperthermia produces nitrogen oxide emission big, burning
The low problem of efficiency.
The content of the invention
(1) technical problem for solving
In view of the shortcomings of the prior art, the invention provides a kind of biological fuel gas three swirler air distribution low NO,
Possess air mix with fuel gas fully, high combustion efficiency, drop discharged nitrous oxides advantage, solve air and combustible gas
Body undercompounding, efficiency of combustion is low, the big problem of nitrogen oxide emission, really realizes target for energy-saving and emission-reduction.
(2) technical scheme
To achieve the above object, the present invention provides following technical scheme：A kind of low nitrogen of biological fuel gas three swirler air distribution
It is fixedly welded with three times between burner, including double-cone burner nozzles, the double-cone burner nozzles throat annulus interlayer
Wind tangential vane, the bottom of the double-cone burner nozzles is fixedly connected with tertiary air case, the double-cone burner nozzles
It is fixedly connected by flange and bolt with the top of Secondary Air outer tube, the bottom and first and second of the Secondary Air outer steel pipe
The heat-resisting inner sleeve steel pipe of Secondary Air is welded with the inside of the welded top of bellows, and Secondary Air outer steel pipe, the Secondary Air is heat-resisting
The bottom welding of inner sleeve steel pipe one side has first and second bellows air conducting cone, the heat-resisting inner sleeve steel pipe of Secondary Air and two
The tangential fan blade of annular water conservancy diversion is welded between secondary wind outer steel pipe interlayer, the surface of the heat-resisting inner sleeve steel pipe of Secondary Air offers one
Secondary wind fresh air inlet, the welded top of the first and second bellows air conducting cone has liner heat-resistant tube, and the Secondary Air is heat-resisting interior
The inwall for covering steel pipe is inlaid with the First air heat-resisting round steel pipe of tangential water conservancy diversion, and the heat-resisting inner sleeve steel pipe of Secondary Air and liner heat-resistant tube
Between bottom pouring once wind refractory casting block filler.
Preferably, the surface of the heat-resisting inner sleeve steel pipe of the Secondary Air offers the First air of 9~12 20 centimetres of diameters and enters
Air holes, and 9~12 First air fresh air inlets are opened on an anchor ring of the heat-resisting inner sleeve steel pipe of Secondary Air.
Preferably, first and second bellows are separate with tertiary air case, and first and second bellows and tertiary air case wind
Pressure air quantity is differed.
Preferably, the quantity of the heat-resisting round steel pipe of First air tangential water conservancy diversion is three, and three First air tangentials
The heat-resisting round steel pipe of water conservancy diversion and liner heat-resistant tube composition First air rotation direction air distribution chamber.
(3) beneficial effect
The invention provides a kind of biological fuel gas three swirler air distribution low NO.Possesses following beneficial effect：
(1), the biological fuel gas three swirler air distribution low NO by set three times classification eddy flow air distributions with it is flammable
Gas effectively organizes combustion system so that efficiently low nitrogen fully burns fuel gas, from gasification furnace biological mass combustable gas out
The First air " rich fuel-rich " that body flows through liner heat-resistant tube with the heat-resisting inner sleeve steel pipe of Secondary Air and liner heat-resistant tube out rotate is pre-
Mixed combustion, then to being formed by force through Secondary Air tangential vane with first and second bellows in the cone volume of double-cone burner nozzles
The Secondary Air of strong rotation efficiently mixes anoxycausis with " fuel-rich ", has arrived the cone throat latter end of double-cone burner nozzles again
Tertiary air with high speed rotation quickly mixes, and " poor fuel " oxygen-enriched combusting effectively burns imperfect combustion fuel gas, protects
Card efficiency of combustion is not reduced, and realizes efficient burning.
(2), the biological fuel gas three swirler air distribution low NO is by setting three swirler air distribution, and by control
The nitrogen oxides of generation of burning is reduced into nitrogen N 2 by the air capacity reality mixed with fuel gas per one-level, so as to effectively reduce
The discharge of nitrogen oxides, reaches low-nitrogen discharged purpose, meanwhile, fractional combustion reduces combustion heat release amount and ignition temperature,
The nitrogen oxides of suppression " temperature mode " generation is played, low nitrogen burning is realized.
(3), the biological fuel gas three swirler air distribution low NO has by three classification eddy flow air distributions, fuel gas
The cooperation of effect tissue combustion system, double-cone burner nozzles and first and second bellows, has reached and has improved air with fuel gas
Composite rate, makes burning more abundant, while can realize low-nitrogen discharged, really realizes the effect of low nitrogen efficient burning.
Brief description of the drawings
Fig. 1 is structure front view of the present invention.
In figure：The heat-resisting inner sleeve steel pipe of 1 double-cone burner nozzles, 2 Secondary Airs, 3 first and second bellows air conducting cones, 4
Liner heat-resistant tube, the 5 heat-resisting round steel pipes of First air tangential water conservancy diversion, 6 Secondary Air tangential vanes, 7 Secondary Air outer tubes, 8 flanges, 9
First air fresh air inlet, 10 first and second bellows, 11 First air refractory castings block filler, 12 tertiary air casees, the tangential leaf of 13 tertiary airs
Piece, 14 bolts.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the present invention provides a kind of technical scheme：A kind of biological fuel gas three swirler air distribution low nitrogen burning
Device, including double-cone burner nozzles 1, the double-cone burner nozzles 1 of setting can pass through imperfect combustion fuel gas
Double-cone burner nozzles 1 burn away, and the throat of double-cone burner nozzles 1 is welded with tertiary air tangential vane 13, tertiary air
The quantity of tangential vane 13 is cone throat peripheral annular according to girth equalization arranged tangential, the cone of double-cone burner nozzles 1
Body bottom is tertiary air case 12, and tertiary air is provided by tertiary air case 12.
Double-cone burner nozzles 1 are fixedly connected with the top of Secondary Air outer tube 7 by flange 8 and bolt 14, flammable
By liner heat-resistant tube 4, rotation mixes " poor to gas at a high speed in the cone of double-cone burner nozzles 1 after First air premixing
Oxygen " burns, and due to the contraction of the throat of double-cone burner nozzles 1, mixes more abundant, can also be burnt by " oxygen deprivation "
The nitrogen oxides that reduction has been generated, Secondary Air tangential vane 6, Secondary Air are welded with the heat-resisting outer wall of inner sleeve steel pipe 2 of Secondary Air
The quantity of tangential vane 6 is the top of girth equalization arranged tangential, the bottom of Secondary Air outer steel pipe 7 and first and second bellows 10
Welding, and the inner side of Secondary Air outer steel pipe 7 is welded with the heat-resisting inner sleeve steel pipe 2 of Secondary Air, the heat-resisting side of inner sleeve steel pipe 2 of Secondary Air
The bottom welding in face has first and second bellows air conducting cone 3, and the heat-resisting inner sleeve steel pipe 2 of Secondary Air is pressed from both sides with Secondary Air outer steel pipe 7
Interlayer is welded with the tangential fan blade 6 of annular water conservancy diversion, and first and second bellows air conducting of setting cone 3 can effectively strengthen air compartment wind to be carried out
Water conservancy diversion, and effectively avoid heat radiation of the high-temperature flue gas to weld bond in air compartment.
The surface of the heat-resisting inner sleeve steel pipe 2 of Secondary Air offers 9~12 First air fresh air inlets 9 of 20 centimetres of diameter, and 9~
12 First air fresh air inlets 9 are opened on an anchor ring of the heat-resisting inner sleeve steel pipe 2 of Secondary Air, annular equivalent arrangements, from liner
The combustible gas out of heat-resistant tube 4 mixes with First air in advance, " rich fuel-rich " burning, because air stream is swirling eddy, premix
Close effect fine, it is also possible to the nitrogen oxides that reduction has been generated, the quantity of the heat-resisting round steel pipe 5 of First air tangential water conservancy diversion is three
It is individual, and three heat-resisting round steel pipes 5 of First air tangential water conservancy diversion and the composition First air rotation direction air distribution of liner heat-resistant tube 4 chamber, due to cutting
To guide functions, interlayer once eolian eddy flow state out, the inwall of the heat-resisting inner sleeve steel pipe 2 of Secondary Air is inlaid with First air and cuts
To the once wind of the bottom pouring between the heat-resisting round steel pipe 5 of formula water conservancy diversion, and the heat-resisting inner sleeve steel pipe 2 of Secondary Air and liner heat-resistant tube 4
Refractory casting blocks filler 11.
When using, the biological fuel gas three swirler air distribution low NO first passes through First air fresh air inlet 9 and combustible gas
Body premixing " rich fuel-rich " burning, then rotates the tangential leaf of Secondary Air in the cone of double-cone burner nozzles 1 with high speed
Piece 6 is sufficiently mixed " fuel-rich " burning, and the fuel gas not burnt mixes " poor fuel " with the eddy flow of tertiary air tangential vane 13 again
Burning, while efficiency of combustion is fully enhanced, the nitrogen oxides that flame localized hyperthermia can be avoided to generate can also be by life
Into nitrogen oxides, the nitrogen oxidation that will have been generated by the reducibility gas (CH4, CO, H2, C) contained by fuel gas itself
Thing is reduced into N2
Can to sum up obtain, the biological fuel gas three swirler air distribution low NO is according to fuel gas and three-level rotary air
Stream is sufficiently mixed efficient burning by different air quantity, wind rate, wind speed, and it is not high with fuel gas composite rate to solve air, burns not
Sufficient problem, while can realize low-nitrogen discharged, really realizes low nitrogen efficient burning.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of biological fuel gas three swirler air distribution low NO, including double-cone burner nozzles (1), its feature exists
In：Tertiary air tangential vane (13), the bipyramid are fixedly welded between double-cone burner nozzles (1) throat annulus interlayer
The bottom of shape burner nozzles (1) is fixedly connected with tertiary air case (12), outside the double-cone burner nozzles (1) and Secondary Air
The top of sleeve pipe (7) is fixedly connected by flange (8) with bolt (14), the bottom and, two of the Secondary Air outer steel pipe (7)
The welded top of secondary bellows (10), and the heat-resisting inner sleeve steel pipe (2) of Secondary Air, institute are welded with the inside of Secondary Air outer steel pipe (7)
Stating the bottom welding of heat-resisting inner sleeve steel pipe (2) one side of Secondary Air has first and second bellows air conducting cone (3), described secondary
The tangential fan blade of Secondary Air (6), the Secondary Air are welded between the heat-resisting inner sleeve steel pipe (2) of wind and Secondary Air outer steel pipe (7) interlayer
The surface of heat-resisting inner sleeve steel pipe (2) offers First air fresh air inlet (9), the top of the first and second bellows air conducting cone (3)
Portion is welded with liner heat-resistant tube (4), and it is resistance to that the inwall of the heat-resisting inner sleeve steel pipe (2) of Secondary Air is inlaid with First air tangential water conservancy diversion
Bottom pouring once wind fire resisting between hot round steel pipe (5), and the heat-resisting inner sleeve steel pipe (2) of Secondary Air and liner heat-resistant tube (4)
Cast blocks filler (11).
2. a kind of biological fuel gas three swirler air distribution low NO according to claim 1, it is characterised in that：It is described
The surface of the heat-resisting inner sleeve steel pipe (2) of Secondary Air offers 9~12 First air fresh air inlets (9) of 20 centimetres of diameter, and 9~12
First air fresh air inlet (9) is opened on an anchor ring of the heat-resisting inner sleeve steel pipe (2) of Secondary Air.
3. a kind of biological fuel gas three swirler air distribution low NO according to claim 1, it is characterised in that：It is described
First and second bellows (10) are separate with tertiary air case (12), and first and second bellows (10) and tertiary air case (12) blast wind
Amount is differed.
4. a kind of biological fuel gas three swirler air distribution low NO according to claim 1, it is characterised in that：It is described
The quantity of the heat-resisting round steel pipe of First air tangential water conservancy diversion (5) is three, and the three heat-resisting round steel pipe of First air tangential water conservancy diversion (5)
With liner heat-resistant tube (4) composition First air rotation direction air distribution chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008510.9A CN106765104A (en) | 2016-11-16 | 2016-11-16 | A kind of biological fuel gas three swirler air distribution low NO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008510.9A CN106765104A (en) | 2016-11-16 | 2016-11-16 | A kind of biological fuel gas three swirler air distribution low NO |
Publications (1)
| Publication Number | Publication Date |
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| CN106765104A true CN106765104A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611008510.9A Pending CN106765104A (en) | 2016-11-16 | 2016-11-16 | A kind of biological fuel gas three swirler air distribution low NO |
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| CN (1) | CN106765104A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388238A (en) * | 2017-09-12 | 2017-11-24 | 广州汇迪新能源科技有限公司 | A kind of multi fuel burner |
| CN108036313A (en) * | 2017-12-29 | 2018-05-15 | 广州优的新能源科技有限公司 | Biological fuel gas and natural gas dual burner |
| CN108592014A (en) * | 2018-06-22 | 2018-09-28 | 江西中船航海仪器有限公司 | A kind of multistage combustion gas and multi-staged air hybrid system |
| CN110296394A (en) * | 2019-07-19 | 2019-10-01 | 广州汇迪新能源科技有限公司 | A kind of dual burner of biological fuel gas and natural gas |
| CN111649323A (en) * | 2020-06-16 | 2020-09-11 | 江苏泷涛环境技术有限公司 | Low-nitrogen type flat-flame combustor and application thereof |
| CN112146128A (en) * | 2020-09-27 | 2020-12-29 | 黑龙江省农业机械工程科学研究院 | Biomass briquette stove based on variable pressure jet combustion technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388238A (en) * | 2017-09-12 | 2017-11-24 | 广州汇迪新能源科技有限公司 | A kind of multi fuel burner |
| CN108036313A (en) * | 2017-12-29 | 2018-05-15 | 广州优的新能源科技有限公司 | Biological fuel gas and natural gas dual burner |
| CN108592014A (en) * | 2018-06-22 | 2018-09-28 | 江西中船航海仪器有限公司 | A kind of multistage combustion gas and multi-staged air hybrid system |
| CN110296394A (en) * | 2019-07-19 | 2019-10-01 | 广州汇迪新能源科技有限公司 | A kind of dual burner of biological fuel gas and natural gas |
| CN111649323A (en) * | 2020-06-16 | 2020-09-11 | 江苏泷涛环境技术有限公司 | Low-nitrogen type flat-flame combustor and application thereof |
| CN112146128A (en) * | 2020-09-27 | 2020-12-29 | 黑龙江省农业机械工程科学研究院 | Biomass briquette stove based on variable pressure jet combustion technology |
| CN112146128B (en) * | 2020-09-27 | 2022-08-09 | 黑龙江省农业机械工程科学研究院 | Biomass briquette stove based on variable pressure jet combustion technology |
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