CN205842635U - A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides - Google Patents
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides Download PDFInfo
- Publication number
- CN205842635U CN205842635U CN201620522796.1U CN201620522796U CN205842635U CN 205842635 U CN205842635 U CN 205842635U CN 201620522796 U CN201620522796 U CN 201620522796U CN 205842635 U CN205842635 U CN 205842635U
- Authority
- CN
- China
- Prior art keywords
- air
- air nozzle
- ground floor
- primary air
- nozzle
- 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.)
- Expired - Fee Related
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 43
- 238000010304 firing Methods 0.000 title claims abstract description 27
- 239000003245 coal Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003546 flue gas Substances 0.000 abstract description 8
- 238000004939 coking Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010881 fly ash Substances 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 210000004894 snout Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
This utility model relates to a kind of combustion system reducing Opposite Firing Boiler nitrogen oxides；It includes primary air fan, air preheater, is arranged on the burner of lower furnace portion, heat primary air pipe, cold primary air piping, is arranged on multiple ground floor fire air nozzle of upper furnace and is arranged on the second layer fire air nozzle on ground floor fire air nozzle top；Combustion system described in the utility model is operationally, the part First air that primary air fan produces sprays into from the direct current fire air nozzle being positioned at burner top, cross burner, ground floor burnout degree and the cooperation of second layer burnout degree, burner hearth fly ash combustible material can be effectively reduced, improve the flue gas atmosphere near water-cooling wall, the coking of prevention of water cold wall and high temperature corrosion, reduce the oxygen amount deviation of furnace outlet both sides flue gas, reach to improve the purpose controlling steam temperature, there is good society and economic benefit.
Description
Technical field
This utility model belongs to steam power plant field, relates to a kind of combustion system, before and after being specifically related to a kind of reduction
The combustion system of wall face-fired boiler nitrogen oxides.
Background technology
At present, the combustion system in large-scale pulverized coal firing boiler mainly uses corner tangential firing and opposed firing combustion
Burn.Opposite Firing Boiler, because of its advantage in terms of combustion stability and heating surface layout, has become as current boiler
One of primary combustion mode used.In opposed firing combustion system, turbulent burner burner hearth front wall and rear water wall
On, air distribution individually organized by each burner, and flame is relatively independent.Burner flame on front-back wall intervolves suction mutually, is formed stable
Burning, be then folded to.This combustion system has on furnace profile a more uniform advantage of heat load distribution, but with as
The Terms of Corner Tangential Combustion of burner hearth after-flame height compare, which flue gas in burner hearth mixes poor, flue gas stroke phase
To shorter, often result in air and can not be sufficiently mixed with combustible, cause boiler flyash carbon content higher.
In order to realize the environmental protection of boiler, economy, Effec-tive Function, it usually needs use the mode of Researched of Air Staging Combustion Burning Pulverized Coal to reduce
The discharge of nitrogen oxides in Opposite Firing Boiler.Researched of Air Staging Combustion Burning Pulverized Coal mode refers to the air required for boiler combustion
Burner hearth is sent in classification.The burner hearth using which sequentially consists of main combustion zone, reducing zone and burning-out zone three part.Main combustion
Burner region, sends into the 70%-90% of fuel combustion Air Quantity Required, and fuel burns under anoxic conditions, controls heating power type nitrogen
The generation of oxide.Reducing zone is between main combustion zone and burning-out zone, and the nitrogen oxides that main combustion zone generates is at this region quilt
The reducing substances reduction such as carbon, hydrogen, carbon monoxide and the coal coke that imperfect combustion generates.After-flame region is sent into fuel and is fired completely
Surplus air needed for burning, the uncombusted part of fuel is burnt under the excess air in this region.
Although using air staged combustion technology can effectively reduce the discharge capacity of nitrogen oxides, but boiler fly ash is also brought to contain
The problems such as carbon amounts rising, furnace wall cooling coking, high temperature corrosion, overtemperature and Stream temperature degree are difficult to control to, especially with nitrogen oxygen
The raising day by day of compound emission request, original opposed firing burner, in order to reduce nitrogen oxides further, is being entered by power plant
While row transformation, constantly deepen the degree of air classification, reduce the oxygen amount of main combustion zone and reducing zone so that the flying dust of boiler
Combustible rises, and the problem of water-cooling wall coking, overtemperature and high temperature corrosion is more prominent.
Although industry is by changing the burner of Opposite Firing Boiler and burnout degree solves the problems referred to above, but mesh
Before do not have a kind of effective manner can solve opposed firing combustion system boiler causes because of air classification yet simultaneously
Fly ash combustible material rising, water-cooling wall coking, high temperature corrosion and the problem of control of steam temperature.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, it is provided that a kind of opposed firing that reduces burns
Boiler nitrogen oxides and the combustion system of raising boiler combustion efficiency, this system can effectively solve opposed firing burning pot
Stove is because of problems such as the fly ash combustible material rising produced after staged air distribution, water-cooling wall coking, high temperature corrosion and control of steam temperature are difficult.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides, it includes primary air fan, air preheat
Device, it is arranged on the burner of lower furnace portion, heat primary air pipe, cold primary air piping, is arranged on multiple first grate firings of upper furnace
Use up wind snout and be arranged on the second layer fire air nozzle on ground floor fire air nozzle top；Described heat primary air pipe one end with
Primary air fan air outlet connects, and the other end connects with ground floor fire air nozzle and second layer fire air nozzle, described ground floor
Fire air nozzle and second layer fire air nozzle are respectively arranged with air register, described ground floor fire air nozzle and second layer after-flame
Wind snout is in parallel, and described heat primary air pipe passes air preheater, and described air preheater is arranged on the flue of burner hearth, described
Heat primary air pipe is provided with pitch before front heat primary air；Described cold primary air piping one end connects with primary air fan air outlet, another
End is parallel with multiple burner, and described cold primary air piping connects through coal pulverizer with burner, and described primary air piping is at coal pulverizer
Upstream is provided with cold First air pitch, is provided with communicating pipe, described communicating pipe between described cold primary air piping and heat primary air pipe
Be provided with pitch before rear heat primary air, described communicating pipe one end connect with the heat primary air pipe in pitch downstream before heat primary air, institute
State the communicating pipe other end to connect with the cold primary air piping between cold First air pitch and coal pulverizer；Multiple described ground floor after-flames
The air-out direction of wind snout points to and crowds around formation annular counterclockwise, and the air-out direction of multiple described second layer fire air nozzle is suitable
Hour hands point to and crowd around formation annular.
Furtherly, described coal pulverizer is two and parallel connection.
Furtherly, described ground floor fire air nozzle is positioned on burner hearth transverse section and the downward-sloping setting of air outlet.
Furtherly, described second layer fire air nozzle is positioned on burner hearth transverse section and air outlet is inclined upwardly setting.
Furtherly, the excess air coefficient of described burner region internal furnace is 0.8.
Furtherly, the excess air coefficient of the burner hearth that described second layer fire air nozzle is later is 1.2.
Furtherly, described ground floor fire air nozzle is four, and is generally aligned in the same plane, four described ground floor after-flames
Wind snout is positioned on same circle, and 90 ° of the central angle that arc length between adjacent ground floor fire air nozzle is corresponding.
Furtherly, described second layer fire air nozzle is four, and is generally aligned in the same plane, four described second layer after-flames
Wind snout is positioned on same circle, and 90 ° of the central angle that arc length between adjacent second layer fire air nozzle is corresponding.
Furtherly, the air output of second layer fire air nozzle is equal to the air output of ground floor fire air nozzle.
This utility model has a following effect:
Operationally, the part First air that primary air fan produces is from being positioned at burner for combustion system described in the utility model
The direct current fire air nozzle on top sprays into, and First air at a high speed drives flue gas to rotate in burner hearth, makes the oxygen in flue gas
The mixing more violent with combustible, the rotation then removed smoke by the First air reversely sprayed into, burner hearth can be eliminated
The residual rotation in exit, and further enhance oxygen and the mixing of combustible in burner hearth.Secondly, use that pressure ratio is bigger one
Secondary wind, as burnout degree, advantageously ensures that the rigidity of burnout degree, when carrying out furnace air distribution amount and adjusting, it is possible to ensure burnout degree spray
Enter into burner hearth depths.The air quantity of burnout degree derives from the reduction of burner secondary wind air quantity, logical after secondary wind air quantity reduces simultaneously
Cross and change the actual internal area of secondary wind to improve the wind speed of secondary wind, it is ensured that the momentum of secondary wind is constant, so that secondary
Wind does not changes with the ratio of momentum of First air, it is ensured that the stability of burning.
By burner, ground floor burnout degree and the cooperation of second layer burnout degree, it is possible to effectively reducing burner hearth flying dust can
Fire thing, improve the flue gas atmosphere near water-cooling wall, the coking of prevention of water cold wall and high temperature corrosion, reduce furnace outlet both sides flue gas
Oxygen amount deviation, reach improve control steam temperature purpose, there is good society and economic benefit.
Accompanying drawing explanation
Fig. 1 is that overall burner hearth of the present utility model arranges schematic diagram；
Fig. 2 is that ground floor fire air nozzle of the present utility model arranges schematic diagram；
Fig. 3 is that second layer fire air nozzle of the present utility model arranges schematic diagram；
Fig. 4 is combustion system schematic diagram of the present utility model；
Fig. 5 is attachment structure schematic diagram of the present utility model.
Wherein: 1 primary air fan, 2 coal pulverizers, 3 burners, 4 ground floor fire air nozzle, 5 second layer fire air nozzle, 6
Air preheater, 7 cold First air pitch, pitch before heat primary air before 8, pitch, 10 air registers, 11 heat one before heat primary air after 9
Secondary airduct, 12 burner hearths, 13 cold primary air piping, 14 communicating pipes.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
With reference to accompanying drawing 1-5.A kind of burning reducing Opposite Firing Boiler nitrogen oxides described in the utility model
System, it include primary air fan 1, air preheater 6, be arranged on the burner 3 of burner hearth 12 bottom, heat primary air pipe 11, cold one
Secondary airduct 13, it is arranged on multiple ground floor fire air nozzle 4 on burner hearth 12 top and is arranged in ground floor fire air nozzle 4
The second layer fire air nozzle 5 in portion；Described heat primary air pipe 11 one end connects with primary air fan 1 air outlet, the other end and first
Layer fire air nozzle 4 connects with second layer fire air nozzle 5, described ground floor fire air nozzle 4 and second layer fire air nozzle 5
It is respectively arranged with air register 10, described ground floor fire air nozzle 4 and second layer fire air nozzle 5 in parallel, described heat primary air
Pipe 11 is through air preheater 6, and described air preheater 6 is arranged on the flue of burner hearth 12, and described heat primary air pipe 11 is arranged
There is pitch 8 before front heat primary air；Described cold primary air piping 13 one end connects with primary air fan 1 air outlet, and the other end is parallel with many
Individual burner 3, described cold primary air piping 13 connects through coal pulverizer 2 with burner 3, and described primary air piping 13 is on coal pulverizer 2
Trip is provided with cold First air pitch 7, is provided with communicating pipe 14, described company between described cold primary air piping 13 and heat primary air pipe 11
Siphunculus 14 is provided with pitch 9 before rear heat primary air, described communicating pipe 14 one end with heat primary air before the heat primary air in pitch 8 downstream
Pipe 11 connects, described communicating pipe 14 other end connect with the cold primary air piping 13 between cold First air pitch 7 and coal pulverizer 2；Many
The air-out direction of individual described ground floor fire air nozzle 4 points to and crowds around formation annular, multiple described second layer after-flames counterclockwise
The air-out direction of wind snout 5 points to and crowds around formation annular clockwise.
Coal pulverizer 2 is two and parallel connection；Described ground floor fire air nozzle 4 is positioned on burner hearth transverse section and air outlet is downward
It is obliquely installed；Setting that described second layer fire air nozzle 5 is positioned on burner hearth transverse section and air outlet is inclined upwardly；Two layer of air sprays
Mouth echoes up and down, forms contrary air circulation, can fully be mixed by air-flow at short notice, reaches the mesh fully reflected
's.
The excess air coefficient of burner 3 region internal furnace 12 is 0.8；The stove that described second layer fire air nozzle 5 is later
The excess air coefficient of thorax 12 is 1.2；Described ground floor fire air nozzle 4 is four, and is generally aligned in the same plane, four described
One layer of fire air nozzle 4 is positioned on same circle, and the central angle that arc length between adjacent ground floor fire air nozzle 4 is corresponding
90°；Described second layer fire air nozzle 5 is four, and is generally aligned in the same plane, and four described second layer fire air nozzle 5 are positioned at
90 ° of the central angle that the arc length between second layer fire air nozzle 5 on same circle and adjacent is corresponding；Second layer burnout degree sprays
The air output of mouth 5 is equal to the air output of ground floor fire air nozzle 4.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides and raising efficiency of combustion includes First air
Pitch 9, air register 10, ground floor fire air nozzle 4, second layer burnout degree before machine 1, front heat primary air pitch 8, rear heat primary air
Spout 5.In the past heat primary air pitch 8 is divided into two parts after drawing a part of heat primary air below.A part of heat primary air passes through
Air register 10 enters ground floor fire air nozzle 4, forms a circle of contact counterclockwise in burner hearth 12；Another part heat primary air
Enter second layer fire air nozzle 5 by air register 10, become a clockwise circle of contact at freeze profile.
The air quantity of ground floor fire air nozzle 4 and second layer fire air nozzle 5 derives from the two of burner 3 reduction of boiler
Secondary wind air quantity, in order to keep its momentum to keep constant after the secondary wind air quantity reduction of the burner 3 of boiler, takes reduction secondary
The mode in wind circulation cross section improves secondary wind speed, it is ensured that secondary wind and First air ratio of momentum do not change.
It should be noted that ground floor fire air nozzle 4 described in the utility model and second layer fire air nozzle 5 is each
Individual spout is equipped with making the motor drive mechanism of spout horizontal hunting.So that the adjustment of swirl strength.
Combustion system of the present utility model includes primary air fan 1, burner hearth 12, ground floor fire air nozzle 4, second layer after-flame
Wind snout 5, air register 10, air preheater 6, front heat primary air pitch 8, rear heat primary air pitch 9.Described primary air fan 1
Outlet is divided into two-way, and wherein a road is through air preheater 6, by front heat primary air pitch 8 and rear heat primary air pitch 9, with
Enter coal pulverizer 2 after the cold First air mixing of another path of primary air fan 1 outlet, then carry coal dust and entered by burner 3
Enter burner hearth 12.From heat primary air road 11, part heat one is drawn in the middle of front heat primary air pitch 8 and rear heat primary air pitch 9
Secondary wind, enters ground floor fire air nozzle 4 through air register 10, enters second layer fire air nozzle 5 through air register 10.
Described ground floor fire air nozzle 4 can form a circle of contact counterclockwise in burner hearth, and second layer burnout degree sprays
Mouth 5 can form a clockwise circle of contact in burner hearth.The air required for progressively aftercombustion is carried out by two-layer burnout degree,
The rotated residual stress at furnace outlet is eliminated by the rotation mode of different directions.
The air quantity of ground floor fire air nozzle 4 and second layer fire air nozzle 5 comes from the two of burner 3 minimizing of boiler
Secondary wind air quantity.In order to keep its momentum to keep constant after the secondary wind air quantity reduction of the burner 3 of boiler, take reduction secondary
The mode in wind circulation cross section improves secondary wind speed.Including the driving means driving fire air nozzle to swing.
Excess air coefficient is air quality and the burning 1kg fuel institute the most completely of burning 1kg fuel effective supply
The ratio of air quality needed, is the general research combustion mixture component target of the state such as China and Russia, conventional sign λ table
Show.
Theoretical air quality needed for the air quality that the λ=burning 1kg fuel reality is supplied/1kg fuel that burns completely.
Claims (9)
1. the combustion system reducing Opposite Firing Boiler nitrogen oxides, it is characterised in that: it includes primary air fan
(1), air preheater (6), be arranged on the burner (3) of burner hearth (12) bottom, heat primary air pipe (11), cold primary air piping
(13), it is arranged on multiple ground floor fire air nozzle (4) on burner hearth (12) top and is arranged on ground floor fire air nozzle (4)
The second layer fire air nozzle (5) on top；
Described heat primary air pipe (11) one end connects with primary air fan (1) air outlet, the other end and ground floor fire air nozzle (4)
Connecting with second layer fire air nozzle (5), described ground floor fire air nozzle (4) and second layer fire air nozzle (5) set respectively
It is equipped with air register (10), described ground floor fire air nozzle (4) and second layer fire air nozzle (5) in parallel, described heat primary air
Pipe (11) is through air preheater (6), and described air preheater (6) is arranged on the flue of burner hearth (12), described heat primary air
Pipe (11) is provided with pitch (8) before front heat primary air；
Described cold primary air piping (13) one end connects with primary air fan (1) air outlet, and the other end is parallel with multiple burner (3),
Described cold primary air piping (13) connects through coal pulverizer (2) with burner (3), and described primary air piping (13) is on coal pulverizer (2)
Trip is provided with cold First air pitch (7), is provided with communicating pipe between described cold primary air piping (13) and heat primary air pipe (11)
(14), it is provided with pitch (9) before rear heat primary air described communicating pipe (14), adjusts before described communicating pipe (14) one end and heat primary air
Heat primary air pipe (11) connection in door (8) downstream, described communicating pipe (14) other end and cold First air pitch (7) and coal pulverizer
(2) cold primary air piping (13) connection between；
The air-out direction of multiple described ground floor fire air nozzle (4) points to and crowds around formation annular counterclockwise, and multiple described the
The air-out direction of two layers of fire air nozzle (5) points to and crowds around formation annular clockwise.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 1, its feature
It is: described coal pulverizer (2) is two and parallel connection.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 1 and 2, it is special
Levy and be: described ground floor fire air nozzle (4) is positioned on burner hearth transverse section and the downward-sloping setting of air outlet.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 3, its feature
It is: setting that described second layer fire air nozzle (5) is positioned on burner hearth transverse section and air outlet is inclined upwardly.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 1, its feature
It is: the excess air coefficient in described burner (3) region internal furnace (12) is 0.8.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 1, its feature
It is: the excess air coefficient of the burner hearth (12) that described second layer fire air nozzle (5) is later is 1.2.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 1, its feature
It is: described ground floor fire air nozzle (4) is four, and is generally aligned in the same plane, four described ground floor fire air nozzle (4)
It is positioned on same circle, and 90 ° of the central angle that arc length between adjacent ground floor fire air nozzle (4) is corresponding.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 1, its feature
It is: described second layer fire air nozzle (5) is four, and is generally aligned in the same plane, four described second layer fire air nozzle (5)
It is positioned on same circle, and 90 ° of the central angle that arc length between adjacent second layer fire air nozzle (5) is corresponding.
A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides the most according to claim 4, its feature
It is: the air output of second layer fire air nozzle (5) is equal to the air output of ground floor fire air nozzle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620522796.1U CN205842635U (en) | 2016-06-01 | 2016-06-01 | A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620522796.1U CN205842635U (en) | 2016-06-01 | 2016-06-01 | A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205842635U true CN205842635U (en) | 2016-12-28 |
Family
ID=57622843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620522796.1U Expired - Fee Related CN205842635U (en) | 2016-06-01 | 2016-06-01 | A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205842635U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927969A (en) * | 2016-06-01 | 2016-09-07 | 河北省电力建设调整试验所 | Combustion system for reducing nitric oxides of front and back wall opposite-combustion boiler |
| CN108443866A (en) * | 2018-03-22 | 2018-08-24 | 上海锅炉厂有限公司 | A kind of vortex burner matches the combustion of industrial boiler system of circle of contact burnout degree |
| CN110030576A (en) * | 2019-05-05 | 2019-07-19 | 国电南京电力试验研究有限公司 | A kind of boiler run control method for reducing water wall high temperature corrosion and influencing |
| CN111365732A (en) * | 2020-02-28 | 2020-07-03 | 广东电科院能源技术有限责任公司 | Hedging boiler over-fire air self-adaptive control method, system and equipment |
| CN114183746A (en) * | 2021-10-27 | 2022-03-15 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Over-fire air nozzle structure |
-
2016
- 2016-06-01 CN CN201620522796.1U patent/CN205842635U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927969A (en) * | 2016-06-01 | 2016-09-07 | 河北省电力建设调整试验所 | Combustion system for reducing nitric oxides of front and back wall opposite-combustion boiler |
| CN108443866A (en) * | 2018-03-22 | 2018-08-24 | 上海锅炉厂有限公司 | A kind of vortex burner matches the combustion of industrial boiler system of circle of contact burnout degree |
| CN110030576A (en) * | 2019-05-05 | 2019-07-19 | 国电南京电力试验研究有限公司 | A kind of boiler run control method for reducing water wall high temperature corrosion and influencing |
| CN111365732A (en) * | 2020-02-28 | 2020-07-03 | 广东电科院能源技术有限责任公司 | Hedging boiler over-fire air self-adaptive control method, system and equipment |
| CN111365732B (en) * | 2020-02-28 | 2021-09-14 | 南方电网电力科技股份有限公司 | Hedging boiler over-fire air self-adaptive control method, system and equipment |
| CN114183746A (en) * | 2021-10-27 | 2022-03-15 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Over-fire air nozzle structure |
| CN114183746B (en) * | 2021-10-27 | 2024-01-30 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Over-fire air nozzle structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205842635U (en) | A kind of combustion system reducing Opposite Firing Boiler nitrogen oxides | |
| CN103277795B (en) | Gas burner capable of adjusting gas to be self-recycling | |
| CN104633652B (en) | Burning system of opposite firing boiler | |
| CN103134049B (en) | A kind of multiple dimensioned coal dust decoupling combustion device of the polygonal circle of contact and decoupling burning method thereof | |
| CN105927969A (en) | Combustion system for reducing nitric oxides of front and back wall opposite-combustion boiler | |
| CN102628589B (en) | High-temperature and low-NOX combustion method and device for pulverized coal | |
| CN104990069B (en) | A kind of combustion system for improving Opposite Firing Boiler security and economy | |
| CN106122945A (en) | A kind of low-NOx coal powder system and method | |
| CN108870383B (en) | Low NOx combustion system of pulverized coal boiler | |
| CN104595900A (en) | Low-nitrogen-oxide gas combustor and combustion method of combustor | |
| CN202109471U (en) | Biomass low-nitrogen direct-fired boiler | |
| CN202253604U (en) | Tertiary air low-nitrogen combustion arrangement structure | |
| CN204704817U (en) | A kind of low nitrogen oxide gas burner | |
| CN105605560B (en) | Micro- discharge pulverized coal combustion system | |
| CN104154532A (en) | Center air ring concentrated type turbulent burner | |
| CN105276566B (en) | Coal-fired boiler reform is the method for biomass boiler | |
| CN104329669A (en) | Bitangent circular thick and thin separation adjustable direct-current coal powder combustor | |
| CN201237236Y (en) | Composite secondary air apparatus for chain boiler combustion | |
| CN112902154A (en) | Over-fire air system with controllable steam temperature deviation and CO concentration at two sides of opposed firing boiler | |
| CN204358709U (en) | A kind of combustion system of Opposite Firing Boiler | |
| CN205579544U (en) | Discharge pulverized coal combustion system a little | |
| CN204786354U (en) | Combustion system of wall opposed firing boiler security and economic nature around improving | |
| CN204717670U (en) | Boiler staged combustion system of 300MW generator set | |
| CN203223896U (en) | Subcritical lean coal-burning coal powder boiler | |
| CN205746815U (en) | Low-NOx coal powder system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 |