CN108730978A - The low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove - Google Patents
The low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove Download PDFInfo
- Publication number
- CN108730978A CN108730978A CN201810476969.4A CN201810476969A CN108730978A CN 108730978 A CN108730978 A CN 108730978A CN 201810476969 A CN201810476969 A CN 201810476969A CN 108730978 A CN108730978 A CN 108730978A
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- Prior art keywords
- gas
- loopa
- self
- cylinder
- flue gas
- Prior art date
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Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000003546 flue gas Substances 0.000 title claims abstract description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910001873 dinitrogen Inorganic materials 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 claims abstract description 56
- 239000007789 gas Substances 0.000 claims abstract description 31
- 239000002737 fuel gas Substances 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 239000000567 combustion gas Substances 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 238000010992 reflux Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F23D14/26—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
- 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
-
- 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
Abstract
The present invention relates to a kind of inner flue gas of the stove, and the low nitrogen gas burner of self-loopa is adjusted, include with axial air inlets, radial fuel gas inlet and the combustion barrel axially exported, the Gas Pipe being connected with radial fuel gas inlet is coaxially provided in combustion barrel, axial exit is equipped with igniter and steady flame plate.The combustion barrel includes offering multiple return ports along sequentially connected first, second cylinder of gas axial direction conveying direction, the second cylinder, and the smoke backflow amount adjustment structure for adjusting return port size is correspondingly provided in combustion barrel；Coaxial sleeve is equipped with guide disc on reflux hole site in Gas Pipe, guide disc extends opening gradually increased hollow form round platform peripheral wall towards gas axial direction outbound course, it forms air-guiding aisle between the second cylinder, and air-guiding aisle is in tapered along gas axial direction conveying direction sectional dimension.This structure achievees the purpose that flue gas self-loopa, second-time burning by Negative Pressure Difference, realizes low-nitrogen discharged.
Description
Technical field
The present invention relates to burner manufacturing technology fields more particularly to a kind of inner flue gas of the stove, and the low nitrogen combustion gas of self-loopa is adjusted
Burner.
Background technology
Air pollution caused by environmental problem, especially Industrial Boiler NOx emission, seriously affected the people life and
Health.NOx emission leads to the generation of haze in acid rain formation, air, is increasingly paid attention to by government and the people.In work
Industry field of boilers and station boiler field, country have put into effect stringent discharge standard and regulation.Existing burner
NOx discharge generally is low nitrogen grade（80mg/m3 or less）, current technology can reach ultralow nitrogen grade（30mg/m3 or less）
It is very few.Even if also unstable in day-to-day operation using FGR technologies, main cause is that three gas proportioning is difficult to control.
Common low-NO_x combustion technology includes mainly fractional combustion, premixed combustion technology, flue gas recirculation etc..Wherein, divide
Grade combustion technology requires in-furnace temperature uniformly distributed, avoids the occurrence of localized hyperthermia, is generated to reduce NOx, but how to realize good
Air/gas classification is a difficult point.Premixed combustion technology is difficult to control two kinds of gas mixing effects, effect in practical applications
It is bad, it is susceptible to the security risk altered and shaken produced by detonation, less use.Flue gas recirculating technique extracts boiler smoke
A part is sent into combustion furnace and burns with combustion gas mixing after being mixed with fresh air, reduce the oxygen concentration in air, reduce in air
The probability that is combined with oxygen of nitrogen, apply in practice relatively broad.But traditional flue gas recirculation is needed by reflux wind turbine
Flue gas extraction is sent back into burner, that is, needs to lay circulating flue gas pipeline and control system again, space is big, invests
Height, and power attenuation 20-30%.
Invention content
Technical problem to be solved by the present invention lies in overcoming the above problem, and propose a kind of inner flue gas of the stove it is adjustable from
Low nitrogen gas burner is recycled, forms flue gas automatic cycle channel between boiler furnace and combustion barrel, it is real in combustion
Existing smoke secondary decomposition combustion, effectively reduces discharged nitrous oxides.
The technical scheme is that：
The low nitrogen gas burner of self-loopa, including combustion barrel, the combustion barrel tool is adjusted in a kind of inner flue gas of the stove of the present invention
There are axial air inlets, radial fuel gas inlet and axial outlet, the combustion being connected with radial fuel gas inlet is coaxially provided in combustion barrel
Tracheae, the axial direction exit are equipped with igniter and steady flame plate, it is characterised in that：The combustion barrel includes axially defeated along gas
Sequentially connected first cylinder in direction and the second cylinder are sent, multiple inside and outside perforations are offered in the circumferential wall of second cylinder
Return port is also correspondingly provided with the smoke backflow amount adjustment structure for adjusting return port size in the combustion barrel；The combustion gas
There are one guide discs, the guide disc to extend one towards gas axial direction outbound course for coaxial package on reflux hole site on pipe
A gradual increased hollow form round platform peripheral wall of opening, forms air-guiding aisle, and this is led between round platform peripheral wall and the second cylinder inboard wall
Wind channel is tapered along gas axial direction conveying direction sectional dimension.
By above structure, the present invention is designed with aerodynamic principle by the hollow round table peripheral wall of guide disc so that
Air-guiding aisle Stepwize Shrink, improves pressure, and the flue gas to be formed is burnt by inside and outside differential pressure effect self-contained in combustion barrel axial direction exit
Ground volume inspiration enters return port, and second-time burning is carried out to enter air-guiding aisle together with combustion air.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, and the flue gas returns
Flow adjusting structure include axially through block cylinder, the end ring circumferential rim for blocking cylinder is equipped with multiple axially extending tune
Pole is correspondingly provided with axially extending slippage slot on first cylinder, and the adjusting rod is matched with slippage slot to be slid therewith
It connects and can be fixed by screw, block the other end of cylinder in shape is inwardly indented, thus blocking cylinder axially can slippingly shelter from
Return port.This structure can axially sliding pushes adjusting rod realization to can be changed return port size according to Actual combustion flame conditions
It adjusts, to optimize smoke backflow amount, it is ensured that second-time burning effect.And block cylinder and be inwardly indented, in the base that air-guiding aisle is tapered
The gap for making return port on plinth and blocking between cylinder is in flaring shape, further speeds up flow velocity, is conducive to it between return port
The formation of negative pressure region, is effectively ensured reflowing result.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, the return port
It is evenly distributed on the same reference circle of the second cylinder circumferential wall, it is each to uniform reflux to ensure that flue gas is able to.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, the return port
In the semicircular strip in both ends.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, the return port
Axial distance apart from igniter is 20-80mm, ensures reflux apart from long enough, regurgitant volume is sufficiently large.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, the round platform week
The busbar of wall is 22-25o with respect to the angle of inclination of guide disc central axis.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, the round platform week
The axial length of wall is 60mm.Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa,
Offered on the guide disc it is multiple for air by air complementary apertures, centered on the sufficient air of flame position supplement, into
One step promotes it fully to burn.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, and the air is mended
It is circle to fill hole, and aperture 28-38mm, quantity is 6-12.
Further, inner flue gas of the stove of the present invention is adjusted in the low nitrogen gas burner of self-loopa, the Gas Pipe
Uniformly extend the isocon of multiple horizontal L-types around circumferential wall, is equipped in the combustion gas of radial inward on each isocon
Mouth and combustion gas outer vent radially, thus enable combustion gas radial diffusion spray, further expand combustion range, reduce fire
Flame concentrates generated NOx.
The beneficial effects of the invention are as follows：
1, the present invention forms inside and outside differential pressure by the round platform peripheral wall of guide disc and the matching design of return port, reaches flue gas automatically again
Purpose is recycled, without in addition purchasing circulating flue gas equipment, laying circulation line, is effectively reduced in the case where ensureing clean-burning effect
Equipment investment, no power waste and volume simple and compact.
2, the present invention is realized by the way that high-temp combustion flue gas recirculation to be passed into combustion air to not sufficiently combusted in flue gas
Fuel gas carry out second-time burning, improve combustion gas utilization rate, while fume afterheat being made full use of to significantly improve combustion air temperature
Degree reduces the oxygen concentration of flame high-temperature region, effectively reduces combustion zone temperature peak value, temperature is uniform, significantly inhibits thermal NO x
Production quantity, have flameholding, complete combustibility high.The secondary flue gas burning that the present invention carries out in burner hearth, is not necessarily to FGR
Outer circulation consumes power of motor, to reach energy saving purpose.
3, present invention design smoke backflow amount adjustment structure realizes the variable adjustment to return port, to change smoke backflow
Amount, ensures to reach optimal combustion state under different operating modes as far as possible, suitability is wider.Regulative mode simple and flexible, it is only necessary to
It pushes adjusting rod axially to slide, just can realize.
4, this structure adds guide disc air complementary apertures, and region supplements large quantity of air centered on can be in fuel gas buring, makes
It is more complete to obtain fuel gas buring, ensure that flame combustion is more stable, improves efficiency of combustion, realizes low nitrogen burning.And processing is simple, no
Overall structure can be made to complicate because of the setting of air complementary apertures.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic cross-sectional view of the present invention.
Fig. 3 is the structural schematic diagram of the present invention for blocking cylinder.
Specific implementation mode
In conjunction with attached drawing, the present invention is further illustrated：
Referring to Figures 1 and 2, the low nitrogen gas burner of self-loopa, including combustion is adjusted in a kind of inner flue gas of the stove described in the present embodiment
Burn cylinder 1, the combustion barrel 1 has axial air inlets, radial fuel gas inlet and axial outlet, be coaxially provided in combustion barrel 1 with
The connected Gas Pipe 2 of radial fuel gas inlet, the axial direction exit are equipped with igniter（It is not shown in figure）With steady flame plate 3.Institute
State Gas Pipe 2 and uniformly extend the isocons 13 of multiple horizontal L-types around circumferential wall, be equipped on each isocon 13 radially towards
Interior combustion gas inner outlet and combustion gas outer vent radially.Combustion gas axially conveys in Gas Pipe 2, in stage casing region by radial direction
It leads out into outward in each isocon 13 and is evenly dispersed into multiply fuel gas flow, continue to convey in an axial direction thereafter, and
By combustion gas inner outlet, combustion gas outer vent inwardly, to external diffusion, form larger dissipation region, to expand combustion zone, reach
To the purpose of temperature distribution equalizing, the discharge of NOx is reduced.
The combustion barrel 1 includes along sequentially connected first cylinder, 4 and second cylinder 5 of gas axial direction conveying direction, the two
Between can be detachably connected by screw.Multiple inside and outside return ports 6 penetrated through, institute are offered in the circumferential wall of second cylinder 5
Return port 6 is stated to be evenly distributed on the same reference circle of 5 circumferential wall of the second cylinder.Specifically, the return port 6 is in both ends half
Circular strip, the axial distance apart from igniter are 20-80mm, to provide sufficiently long reflux distance, further
Ensure regurgitant volume.
The smoke backflow amount adjustment structure for adjusting 6 size of return port is also correspondingly provided in the combustion barrel 1.Specifically
Ground, in conjunction with shown in Fig. 3, the smoke backflow amount adjustment structure include axially through block cylinder 9, described one end for blocking cylinder 9
Ring circumferential rim is equipped with multiple axially extending adjusting rods 10, and axially extending slippage slot 11 is correspondingly provided on first cylinder 4,
The adjusting rod 10 matched with slippage slot 11 therewith sliding connect and can be fixed by screw, block cylinder 9 the other end be in
Interior retraction shape, thus blocking cylinder 9 axially can slippingly shelter from return port 6.
Coaxial package is there are one guide disc 7 on 6 position of return port in the Gas Pipe 2, and the guide disc 7 is towards gas
Axial outbound course extends an opening gradually increased hollow form round platform peripheral wall 8,5 inner wall of round platform peripheral wall 8 and the second cylinder
Between form air-guiding aisle, and the air-guiding aisle is tapered along gas axial direction conveying direction sectional dimension.Guide disc 7 and the second cylinder
5 coaxial arrangements, it is ensured that each upward pressure is consistent, and flue gas enters along each to equalization stable.It should be noted that the present embodiment institute
It is 22-25o that the busbar of round platform peripheral wall 8, which is stated, with respect to the angle of inclination of 7 central axis of guide disc, axial length 60mm, above-mentioned to incline
Rake angle and axial distance are the optimal values range obtained after overtesting, and it is sufficiently large that smoke backflow amount is effectively ensured.It is described
Be further opened on guide disc 7 it is multiple for air by air complementary apertures 12.The air complementary apertures 12 are circle, according to power
Its aperture is set as 28-38mm, quantity is 6-12.
After the burner hearth of burner and boiler, which is installed, to be connected, combustion gas forms the fuel gas flow of direct current in Gas Pipe 2, and leads to
The isocon 13 for crossing annular laying radially outward spreads and is ejected into axial exit；Air shape between combustion barrel 1 and Gas Pipe 2
Sprayed forward at the air draught of direct current, and by the tapered air-guiding aisle in section pressure increased, air-flow return port 6 with
It blocks the adjacent one end region that cylinder 9 is inwardly indented and forms negative pressuren zone, thus under inside and outside differential pressure effect, the combustion of front side axial direction exit
It burns the high-temperature flue gas formed and is reversed volume and inhale, through in return port 6 automatic cycle to combustion barrel 1, and mix with air, continuation edge is led
Wind channel is transported to combustion zone and carries out second-time burning.Simultaneously, air is also axial from the air complementary apertures 12 on guide disc 7
It is ejected into axial exit, is the air needed for the preferably aftercombustion of combustion centre region, optimizes air-fuel ratio, promote burning more
Add fully, improve efficiency of combustion, combustion fan power is not lost, reaches energy saving purpose.
This structure is based on recycling in combustion gas furnace, reaches abundant by being mixed into suitable high-temperature flue gas in combustion air
The purpose of low nitrogen burning, the mechanism of action are broadly divided into the following aspects.
The first, it is remaining not sufficiently combusted combustion gas and fuel gas in the flue gas that generates combustion process（CO,NOx）
It is re-fed into combustion zone and carries out second-time burning, realize and fuel gas is made full use of, saved the energy, reduce the life of equipment
Cost is produced, the practicability of equipment is improved.
The second, air is preheated by the heat of high-temperature flue gas so that subsequent combustion reaction is more abundant, fully
Heat utilization ratio is played, heat is further utilized, and the loss of heat is reduced, more energy-saving.
Third, flue gas, which pour in combustion air, can water down dilution nitrogen therein, oxygen concentration, effectively reduce the temperature of flame region
Peak value is spent, the formation of control thermal NO x achievees the purpose that low nitrogen burning.This structure is compared to traditional structure, without in addition purchase
It sets circulating flue gas equipment, lay circulation line, equipment cost is also effectively reduced in the case where ensureing clean-burning effect.
Used by combustion testing, the present embodiment burns under the conditions of 1480kW, and flame blue is uniformly distributed, combustion state containing
Sufficiently stable under oxygen amount 2.1%, the operating mode of load 30-100%, it is to reach low nitrogen to 0ppm, NOx 13ppm to discharge CO in flue gas
Standard.
The principle of the present invention and its effect is only illustrated in specific embodiment described herein, not for limitation
The present invention.Any person skilled in the art all can without violating the spirit and scope of the present invention carry out above-described embodiment
Modifications and changes.Therefore, as long as those of ordinary skill in the art without departing from disclosed spirit with
All equivalent modifications completed under technological thought or change should be covered by the claim of the present invention.
Claims (10)
1. the low nitrogen gas burner of self-loopa, including combustion barrel is adjusted in a kind of inner flue gas of the stove, the combustion barrel has axial empty
Gas import, radial fuel gas inlet and axial direction export, and the Gas Pipe being connected with radial fuel gas inlet is coaxially provided in combustion barrel, described
Axial exit is equipped with igniter and steady flame plate, it is characterised in that：The combustion barrel include along gas axial direction conveying direction according to
The first cylinder and the second cylinder of secondary connection offer multiple inside and outside return ports penetrated through in the circumferential wall of second cylinder,
The smoke backflow amount adjustment structure for adjusting return port size is also correspondingly provided in the combustion barrel；It is close in the Gas Pipe
Coaxial package flow back on hole site there are one guide disc, the guide disc towards gas axial direction outbound course extend an opening by
Gradually increased hollow form round platform peripheral wall forms air-guiding aisle, and the air-guiding aisle edge between round platform peripheral wall and the second cylinder inboard wall
Gas axial direction conveying direction sectional dimension is tapered.
2. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1, it is characterised in that：The cigarette
Gas regurgitant volume adjustment structure include axially through block cylinder, the end ring circumferential rim for blocking cylinder is equipped with multiple axially extending
Adjusting rod, be correspondingly provided with axially extending slippage slot on first cylinder, the adjusting rod matches therewith with slippage slot
Sliding is connected and can be fixed by screw, blocks the other end of cylinder in shape is inwardly indented, thus blocking cylinder axially can slippingly hide
Block return port.
3. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1, it is characterised in that：Described time
Discharge orifice is evenly distributed on the same reference circle of the second cylinder circumferential wall.
4. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1, it is characterised in that：Described time
Discharge orifice is in the semicircular strip in both ends.
5. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1 or 2 or 3 or 4, feature exists
In：Axial distance of the return port apart from igniter is 20-80mm.
6. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1, it is characterised in that：The circle
The busbar of platform peripheral wall is 22-25o with respect to the angle of inclination of guide disc central axis.
7. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1 or 6, it is characterised in that：Institute
The axial length for stating round platform peripheral wall is 60mm.
8. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1, it is characterised in that：It is described to lead
Offered on wind disk it is multiple for air by air complementary apertures.
9. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 8, it is characterised in that：The sky
Gas complementary apertures are circle, and aperture 28-38mm, quantity is 6-12.
10. the low nitrogen gas burner of self-loopa is adjusted in inner flue gas of the stove according to claim 1, it is characterised in that：It is described
Gas Pipe uniformly extends the isocon of multiple horizontal L-types around circumferential wall, and the combustion of radial inward is equipped on each isocon
Gas inner outlet and combustion gas outer vent radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476969.4A CN108730978B (en) | 2018-05-18 | 2018-05-18 | Self-circulation low-nitrogen gas burner with adjustable flue gas in furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476969.4A CN108730978B (en) | 2018-05-18 | 2018-05-18 | Self-circulation low-nitrogen gas burner with adjustable flue gas in furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730978A true CN108730978A (en) | 2018-11-02 |
| CN108730978B CN108730978B (en) | 2023-11-17 |
Family
ID=63937594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810476969.4A Active CN108730978B (en) | 2018-05-18 | 2018-05-18 | Self-circulation low-nitrogen gas burner with adjustable flue gas in furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882841A (en) * | 2019-03-04 | 2019-06-14 | 中国科学院过程工程研究所 | A kind of decoupling gas burner |
| CN110848684A (en) * | 2019-12-09 | 2020-02-28 | 重庆炅启热能科技有限公司 | Ultralow-nitrogen gas burner for rotary dynamic heating kiln and heating method |
| CN111895410A (en) * | 2020-06-29 | 2020-11-06 | 欧保(中国)环境工程股份有限公司 | Vector control gas low-nitrogen burner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109882841A (en) * | 2019-03-04 | 2019-06-14 | 中国科学院过程工程研究所 | A kind of decoupling gas burner |
| CN110848684A (en) * | 2019-12-09 | 2020-02-28 | 重庆炅启热能科技有限公司 | Ultralow-nitrogen gas burner for rotary dynamic heating kiln and heating method |
| CN111895410A (en) * | 2020-06-29 | 2020-11-06 | 欧保(中国)环境工程股份有限公司 | Vector control gas low-nitrogen burner |
| CN111895410B (en) * | 2020-06-29 | 2022-02-01 | 欧保(中国)环境工程股份有限公司 | Vector control gas low-nitrogen burner |
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| CN108730978B (en) | 2023-11-17 |
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