CN110454774A - A kind of new coal powder boiler low nitrogen burning system - Google Patents
A kind of new coal powder boiler low nitrogen burning system Download PDFInfo
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- CN110454774A CN110454774A CN201910839096.3A CN201910839096A CN110454774A CN 110454774 A CN110454774 A CN 110454774A CN 201910839096 A CN201910839096 A CN 201910839096A CN 110454774 A CN110454774 A CN 110454774A
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- low nitrogen
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 58
- 239000003245 coal Substances 0.000 title claims abstract description 50
- 239000000843 powder Substances 0.000 title claims abstract description 33
- 238000002485 combustion reaction Methods 0.000 claims abstract description 49
- 230000001464 adherent effect Effects 0.000 claims abstract description 29
- 239000003054 catalyst Substances 0.000 claims abstract description 27
- 239000002817 coal dust Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 206010021143 Hypoxia Diseases 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000010304 firing Methods 0.000 claims abstract description 4
- 210000004894 snout Anatomy 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000002631 hypothermal effect Effects 0.000 claims description 2
- 230000007954 hypoxia Effects 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 12
- 239000000446 fuel Substances 0.000 abstract description 7
- 208000018875 hypoxemia Diseases 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- 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
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
-
- 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
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
-
- 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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention discloses a kind of new coal powder boiler low nitrogen burning systems, including fine breeze coal pulverizer, the efficient low nitrogen combustion apparatus with adherent wind, the heating surface with catalyst spraying layer, the catalyst with CO catalysed oxidn, online O2Measuring device, online CO measuring device, online NOx measuring device and industrial personal computer etc..The low temperature of present invention combination air/fuel deeply staged combustion, hypoxemia, based on the coal dust low nitrogen burning of long residence time and full burner hearth large space low heat loads section harmonious combustion is theoretical, pass through big burner hearth Selection and Design, low nitrogen burning system with adherent wind, economic fineness of pulverized coal and pulverized coal preparation system collaboration, the multinomial new technical equipments such as air and flue system cooperation, and incorporating ultrafine coal dust, the accurate control of wind powder conveying, depth air classification low oxygen combustion process optimization control technique and furnace outlet CO catalytic oxidation technologies, realize the systematicness of coal dust firing, the purpose of overall process low nitrogen burning, it is final to realize high efficiency boiler and ultra-low NOx emission target.
Description
Technical field
The invention belongs to coal-fired power generator set fields, and in particular to a kind of new coal powder boiler low nitrogen burning system.
Background technique
Traditional low NOx combusting technology research NOx low with application successive the development and application first generation, the second generation, the third generation
There is also many deficiencies for combustion technology, it is difficult to meet current harsh station boiler air pollutant emission requirement.Specifically,
The adjustment of the first generation combustion technology combustion apparatus method of operation improves；Second generation low-NO_x combustion technology is air staged combustion technology
Based on, the OFA measure being classified including integrated air in burner hearth and its deformation, all kinds of low-NOx combustors etc., there are boilers to be integrally
The limitations such as the negative effects such as system property is not strong, technology is single, boiler is taped the latent power not enough and sacrifices boiler efficiency, water wall high temperature corrosion；
The third generation: reburning technology, fuel delivery system becomes complicated, simultaneously because obtaining reburning fuel (natural gas or superfine powder)
Higher cost limits the use of reburning technology.Therefore first three items low-NO_x combustion technology is all confined to more single low nitrogen combustion
Burning measure reduces the limited extent of NOx emission, and side effect is more.
Forth generation low-NOx coal powder technology is an innovative technology, low NOx combustion control range is extended, i.e.,
Will " burner hearth Selection and Design-coal dust environmental protection and economy fineness control-low nitrogen combustion apparatus-burning with adherent wind accurately controls-
Multiple air classification-advanced fuel classification-low oxygen combustion control-flue CO catalysis oxidation " integration reduces pot as depth
The aggregate measures of furnace NOx emission.Forth generation low-NOx coal powder technology and system efficiently contribute to China and realize extremely low NOx control
Target processed reduces station boiler environmental protection operating cost and is of great significance.
Summary of the invention
It is an object of the invention to overcome the problems, such as it is above-mentioned first three for low-NO_x combustion technology, provide a kind of new coal powder boiler
Low nitrogen burning system is started with from burner hearth Selection and Design, and being formed includes the control of coal dust environmental protection and economy fineness, the low nitrogen combustion with adherent wind
Burn device, the accurate control of burning, Multiple air classification, advanced fuel classification, low oxygen combustion control and flue CO catalysis oxidation etc.
Nitrogen measure drops in the boiler total system including technical measures, to greatly improve drop nitrogen efficiency.
In order to achieve the above objectives, the present invention, which adopts the following technical scheme that, is achieved:
A kind of new coal powder boiler low nitrogen burning system, including microfine coal coal pulverizer, efficient cyclone, have adherent wind
Efficient low nitrogen combustion apparatus, fire air nozzle, online O2 measuring device, online CO measuring device, online NOx measuring device,
It there also is provided catalyst and industrial personal computer with CO catalysed oxidn in flue；Wherein,
Efficient low nitrogen combustion apparatus, overfire air port and after-flame with adherent wind are sequentially arranged on burner hearth from bottom to top
Wind snout；
The outlet of microfine coal coal pulverizer is connected with the entrance of efficient cyclone, and the outlet of efficient cyclone is existed by wind powder
Line apparatus is connected with the efficient low nitrogen combustion apparatus entrance with adherent wind, is used to form the low nitrogen burning of microfine coal；It is secondary
Wind is divided into two-way, is sequentially connected the entrance that overfire air port is sent into after Secondary Air measuring device by secondary air duct all the way, another
Fire air nozzle entrance is sent into after being sequentially connected burnout degree measuring device by burnout degree air duct in road, is used to form and organizes in furnace
Air deeply staged combustion, and effectively control water wall high temperature corrosion；
The heating surface with catalyst spraying layer is disposed in the back-end ductwork of the outlet of burner hearth, in flue behind also
It is disposed with the catalyst with CO catalysed oxidn, has also been sequentially arranged online O in the flue at rear portion2It is measuring device, online
CO measuring device and online NOx measuring device, the tail portion CO for being formed to burner hearth low oxygen combustion carry out fully oxidized and smoke evacuation
The monitoring of ingredient；
Wind and powder on-line device, Secondary Air measuring device, burnout degree measuring device, online O2Measuring device, online CO measurement
Device, online NOx measuring device signal be introduced into industrial personal computer respectively, the accurate control for process of coal combustion.
A further improvement of the present invention lies in that the microfine coal that pulverized coal preparation system is ground, by efficient low with adherent wind
Nitrogen combustion apparatus is sent into the burner hearth of air deep-graded, hypothermia and hypoxia burning is carried out under conditions of wind powder accurately controls, so
It is aoxidized again by what burner hearth tail portion was arranged with CO catalysis oxidation function heating surface or catalyst afterwards, to guarantee that boiler is set
Under the conditions of standby safe and efficient, NOx emission is utmostly reduced.
A further improvement of the present invention lies in that being additionally provided with secondary air regulation air door on secondary air duct.
A further improvement of the present invention lies in that being provided with burnout degree on burnout degree air duct adjusts door.
A further improvement of the present invention lies in that the heating surface with catalyst spraying layer is for generating low nitrogen burning in burner hearth
CO carry out being catalytically oxidized to CO2。
A further improvement of the present invention lies in that the catalyst with CO catalysed oxidn, for aoxidizing CO with NOx also
It is former.
A further improvement of the present invention lies in that the adherent wind snout of the efficient low nitrogen combustion apparatus with adherent wind is using only
Vertical spout, perhaps combination spout is combined with a wind snout or overfire air port combines；The wind regime of adherent wind be First air or
Person is Secondary Air.
A further improvement of the present invention lies in that the size of burner hearth is greater than the size of conventional boiler burner hearth, volume heat load
Low compared with conventional boiler 10% or more.
Compared with the existing technology, the invention has the following beneficial technical effects:
A kind of new coal powder boiler low nitrogen burning system provided by the invention, in conjunction with air/fuel deeply staged combustion
Low temperature, hypoxemia, long residence time and full burner hearth large space low heat loads section harmonious combustion coal dust low nitrogen burning theory be base
Plinth passes through the collaboration of big burner hearth Selection and Design, the low nitrogen burning system with adherent wind, economic fineness of pulverized coal and pulverized coal preparation system, wind
The multinomial new technical equipments such as cigarette system cooperation, and the accurate control of incorporating ultrafine coal dust, wind powder conveying, depth air classification hypoxemia
Combustion process Optimal Regulation Technique furnace outlet CO catalytic reduction technique realizes the low nitrogen combustion of the systematicness of coal dust firing, overall process
The purpose of burning, it is final to realize high efficiency boiler and ultra-low NOx emission target.Wherein, wind and powder on-line device, Secondary Air measuring device,
Burnout degree measuring device, online O2Measuring device, online CO measuring device, online NOx measuring device and industrial personal computer can form
Accurate low nitrogen burning wind powder control system, forms the low oxygen and low nitrogen combustion control processes distributed rationally, realizes NOx control and reduces
The optimal control of flue gas loss.
Further, heated surface at the end of boiler is disposed with the catalyst coat of CO catalysed oxidn, or fills in SCR denitration
It is can be had CO oxidation and NOx simultaneously also in setting using follow-on catalyst, the i.e. catalyst of CO catalysed oxidn
Former effect, both modes can individually using or be used in combination.
Further, the adherent wind snout of the efficient low nitrogen combustion apparatus with adherent wind can be independent spout, can also be with
It is combination spout, can also be both combined with a wind snout combination with overfire air port；The wind regime of adherent wind is either one
Secondary wind is also possible to Secondary Air.
In conclusion pulverized-coal fired boiler low nitrogen burning system proposed by the present invention, it is intended to by pulverized coal preparation system, air and gas system,
The configuration of the global optimum of combustion system and boiler run control system is realized under the premise of guaranteeing Boiler Economical Operation
Total system amplitude peak reduces NOx and drops the target of nitrogen.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pulverized-coal fired boiler low nitrogen burning system of the present invention.
Description of symbols:
1 it is microfine coal coal pulverizer, 2 be efficient cyclone, 3 is wind and powder on-line device, 4 for the efficient low of adherent wind
Nitrogen combustion apparatus, 5 be Secondary Air measuring device, 6 be secondary air regulation air door, 7 be overfire air port, 8 be burnout degree measurement dress
Set, 9 be burnout degree adjust door, 10 be fire air nozzle, 11 be burner hearth, 12 for catalyst spraying layer heating surface, 13 be tool
There is the catalyst of CO catalysed oxidn；14 be online O2Measuring device, 15 be online CO measuring device, 16 be that online NOx is surveyed
Amount device, 17 are industrial personal computer.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, pulverized-coal fired boiler low nitrogen burning system provided by the invention, including microfine coal coal pulverizer 1, efficiently separate
Device 2, wind and powder on-line device 3, the efficient low nitrogen combustion apparatus 4 with adherent wind, Secondary Air measuring device 5, secondary air regulation wind
Door 6, overfire air port 7, burnout degree measuring device 8, burnout degree adjust door 9, fire air nozzle 10, burner hearth 11, have catalysis spray
The heating surface 12 of coating, the catalyst 13 with CO catalysed oxidn；Online O2Measuring device 14, online CO measuring device
15, online NOx measuring device 16 and industrial personal computer 17.
Wherein, efficient low nitrogen combustion apparatus 4, overfire air port 7 and combustion with adherent wind are respectively disposed on burner hearth 11
Wind snout 10 is use up, be sequentially arranged the heating surface 12 with catalyst spraying layer on the flue of furnace outlet respectively and there is CO catalysis
The catalyst 13 of oxidation, has then also been sequentially arranged online O on flue2Measuring device 14, online 15 and of CO measuring device
Online NOx measuring device 16.
Microfine coal coal pulverizer 1 outlet is connected with the entrance of efficient cyclone 2, the outlet of efficient cyclone 2 and have paste
4 entrance of efficient low nitrogen combustion apparatus of wall wind is connected, and wind and powder on-line device 3 is equipped on pipeline therebetween；Secondary air separating is two
Overfire air port 7 is sent into after being sequentially connected Secondary Air measuring device 5, secondary air regulation air door 6 by secondary air duct all the way in road
Entrance, another way is sequentially connected burnout degree measuring device 8 by burnout degree air duct, burnout degree is sent into burnout degree spray after adjusting door 9
10 entrances of mouth.
The heating surface 12 with catalyst spraying layer, flue behind are disposed in the back-end ductwork of the outlet of burner hearth 11
In there also is provided the catalyst 13 with CO catalysed oxidn, there also is provided online O in the flue at rear portion2Measuring device 14,
Online CO measuring device 15, online NOx measuring device 16.
Wind and powder on-line device 3, Secondary Air measuring device 5, burnout degree measuring device 8, online O2Measuring device 14, online CO
The signal of measuring device 15 and online NOx measuring device 16 is introduced into industrial personal computer (17) respectively for the accurate of process of coal combustion
Control.
Preferably, the heating surface (12) with catalyst spraying layer is used to be catalyzed the CO that low nitrogen burning in burner hearth generates
It is oxidized to CO2.Catalyst (13) with CO catalysed oxidn is used to further aoxidize the CO in flue gas, or uses CO
The catalyst of catalysed oxidn, for restoring CO oxidation and NOx.
Preferably, the adherent wind snout of the efficient low nitrogen combustion apparatus (4) with adherent wind uses independent spout or group
Spout is closed, is combined with a wind snout or overfire air port combines；The wind regime of adherent wind is First air either Secondary Air.
Preferably, burner hearth (11) is big compared with the size of conventional boiler burner hearth, volume heat load low compared with conventional boiler 10%
More than.
In order to further appreciate that the present invention, an explanation now is done to its course of work:
The present invention, which breaks through traditional low nitrogen burning control, reduces burner hearth by single low NO and air classification realization
The technical thought of exiting flue gas NOx concentration proposes the low temperature, hypoxemia, the long residence time that combine air/fuel deeply staged combustion
Based on the coal dust low nitrogen burning theory of full burner hearth large space low heat loads section harmonious combustion, set by big burner hearth type selecting
The multinomial new skill such as meter, the low nitrogen burning system with adherent wind, economic fineness of pulverized coal and pulverized coal preparation system collaboration, air and flue system cooperation
Art equipment, and the accurate control of incorporating ultrafine coal dust, wind powder conveying, depth air classification low oxygen combustion process optimization control technique
With furnace outlet CO catalytic oxidation technologies, realizes the systematicness of coal dust firing, the purpose of overall process low nitrogen burning, finally realize pot
Furnace efficiently and ultra-low NOx emission target.
Claims (8)
1. a kind of new coal powder boiler low nitrogen burning system, which is characterized in that including microfine coal coal pulverizer (1), efficiently separate
It is device (2), the efficient low nitrogen combustion apparatus (4) with adherent wind, fire air nozzle (10), online O2 measuring device (14), online
CO measuring device (15), online NOx measuring device (16) there also is provided the catalyst with CO catalysed oxidn in flue
(13) and industrial personal computer (17)；Wherein,
Efficient low nitrogen combustion apparatus (4), overfire air port (7) with adherent wind are sequentially arranged on burner hearth (11) from bottom to top
And fire air nozzle (10)；
The outlet of microfine coal coal pulverizer (1) is connected with the entrance of efficient cyclone (2), and the outlet of efficient cyclone (2) passes through
Wind and powder on-line device (3) is connected with efficient low nitrogen combustion apparatus (4) entrance with adherent wind, is used to form the low of microfine coal
Nitrogen burning；Secondary air separating is two-way, is sequentially connected Secondary Air measuring device (5) by secondary air duct all the way and is sent into Secondary Air spray afterwards
The entrance of mouth (7), another way are sequentially connected burnout degree measuring device (8) by burnout degree air duct and are sent into fire air nozzle (10) afterwards
Entrance is used to form and organizes furnace air deeply staged combustion, and effectively controls water wall high temperature corrosion；
The heating surface (12) with catalyst spraying layer, flue behind are disposed in the back-end ductwork of the outlet of burner hearth (11)
In there also is provided the catalyst (13) with CO catalysed oxidn, be also sequentially arranged online O in the flue at rear portion2Measurement dress
Set (14), online CO measuring device (15) and online NOx measuring device (16), the tail portion CO for being formed to burner hearth low oxygen combustion
Carry out fully oxidized and smoke evacuation ingredient monitoring；
Wind and powder on-line device (3), Secondary Air measuring device (5), burnout degree measuring device (8), online O2Measuring device (14), In
Line CO measuring device (15), online NOx measuring device (16) signal be introduced into industrial personal computer (17) respectively, be used for coal dust firing mistake
The accurate control of journey.
2. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that pulverized coal preparation system is ground
Microfine coal, by with adherent wind efficient low nitrogen combustion apparatus (4) be sent into air deep-graded burner hearth (11) in, In
Wind powder carries out hypothermia and hypoxia burning under conditions of accurately controlling, and is then catalyzed oxygen with CO by what burner hearth (11) tail portion was arranged again
Change function heating surface or catalyst is aoxidized, to utmostly be reduced under the conditions of guaranteeing that boiler plant is safe and efficient
NOx emission.
3. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that on secondary air duct also
It is provided with secondary air regulation air door (6).
4. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that on burnout degree air duct
It is provided with burnout degree and adjusts door (9).
5. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that have catalyst spraying
The heating surface (12) of layer is used to carry out being catalytically oxidized to CO to the CO that low nitrogen burning in burner hearth generates2。
6. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that have CO to be catalyzed oxygen
The catalyst (13) of change effect, for restoring CO oxidation and NOx.
7. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that with adherent wind
The adherent wind snout of efficient low nitrogen combustion apparatus (4) uses independent spout, perhaps combine spout combined with a wind snout or
Overfire air port combination；The wind regime of adherent wind is First air either Secondary Air.
8. a kind of new coal powder boiler low nitrogen burning system according to claim 1, which is characterized in that the ruler of burner hearth (11)
The very little size greater than conventional boiler burner hearth, volume heat load low compared with conventional boiler 10% or more.
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| CN201910839096.3A CN110454774A (en) | 2019-09-05 | 2019-09-05 | A kind of new coal powder boiler low nitrogen burning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839096.3A CN110454774A (en) | 2019-09-05 | 2019-09-05 | A kind of new coal powder boiler low nitrogen burning system |
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| Publication Number | Publication Date |
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| CN110454774A true CN110454774A (en) | 2019-11-15 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151816A (en) * | 2021-12-09 | 2022-03-08 | 华中科技大学 | Combustion method and system for realizing energy conservation and low nitrogen emission of gas industrial boiler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705818A (en) * | 2012-06-22 | 2012-10-03 | 上海锅炉厂有限公司 | Wall-attached wind distribution method of boiler combustor |
| CN102705819A (en) * | 2012-06-22 | 2012-10-03 | 上海锅炉厂有限公司 | Closing-to-wall air combustion system for boiler burner |
| CN203223912U (en) * | 2013-04-15 | 2013-10-02 | 黄立新 | Intermediate storage type super nitrogen reduction system for coal-fired boiler coal mill |
| CN103363658A (en) * | 2013-07-19 | 2013-10-23 | 天津宝成机械制造股份有限公司 | Large double-barrel vertical gas boiler |
| WO2014008758A1 (en) * | 2012-07-10 | 2014-01-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal fired boiler with wall-attachment secondary air and grid overfire air |
| CN104896470A (en) * | 2015-06-19 | 2015-09-09 | 中国华能集团清洁能源技术研究院有限公司 | Pulverized coal fired boiler with ultralow nitric oxide emission |
| CN110088532A (en) * | 2016-12-27 | 2019-08-02 | 通用电器技术有限公司 | System and method for combustion system control |
| CN210568371U (en) * | 2019-09-05 | 2020-05-19 | 西安热工研究院有限公司 | Novel pulverized coal fired boiler low-nitrogen combustion system |
-
2019
- 2019-09-05 CN CN201910839096.3A patent/CN110454774A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705818A (en) * | 2012-06-22 | 2012-10-03 | 上海锅炉厂有限公司 | Wall-attached wind distribution method of boiler combustor |
| CN102705819A (en) * | 2012-06-22 | 2012-10-03 | 上海锅炉厂有限公司 | Closing-to-wall air combustion system for boiler burner |
| WO2014008758A1 (en) * | 2012-07-10 | 2014-01-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal fired boiler with wall-attachment secondary air and grid overfire air |
| CN203223912U (en) * | 2013-04-15 | 2013-10-02 | 黄立新 | Intermediate storage type super nitrogen reduction system for coal-fired boiler coal mill |
| CN103363658A (en) * | 2013-07-19 | 2013-10-23 | 天津宝成机械制造股份有限公司 | Large double-barrel vertical gas boiler |
| CN104896470A (en) * | 2015-06-19 | 2015-09-09 | 中国华能集团清洁能源技术研究院有限公司 | Pulverized coal fired boiler with ultralow nitric oxide emission |
| CN110088532A (en) * | 2016-12-27 | 2019-08-02 | 通用电器技术有限公司 | System and method for combustion system control |
| CN210568371U (en) * | 2019-09-05 | 2020-05-19 | 西安热工研究院有限公司 | Novel pulverized coal fired boiler low-nitrogen combustion system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151816A (en) * | 2021-12-09 | 2022-03-08 | 华中科技大学 | Combustion method and system for realizing energy conservation and low nitrogen emission of gas industrial boiler |
| CN114151816B (en) * | 2021-12-09 | 2023-10-31 | 华中科技大学 | Combustion method and system for realizing energy conservation and low nitrogen emission of gas industrial boiler |
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