CN107606605A - A kind of W flame boiler using flue gas recycled - Google Patents
A kind of W flame boiler using flue gas recycled Download PDFInfo
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- CN107606605A CN107606605A CN201710817716.4A CN201710817716A CN107606605A CN 107606605 A CN107606605 A CN 107606605A CN 201710817716 A CN201710817716 A CN 201710817716A CN 107606605 A CN107606605 A CN 107606605A
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Abstract
A kind of W flame boiler using flue gas recycled, it is related to a kind of W flame boiler.The present invention solves burnout degree is set up using the W flame boiler of vortex burner after, the problem of unburned combustible in fly ash significantly raises.A vortex burner of clearance type flue gas recycled spout and its homonymy, which corresponds, on every group of arch is set, flue gas recycled bellows are positioned at the upper clearance type flue gas recycled nozzle of arch on arch, air-introduced machine outlet connects with flue gas recycled house steward, one end of flue gas recycled wind box branch pipe connects with classification wind flue gas recycled branch pipe on arch, the other end of flue gas recycled wind box branch pipe connects with encircleing upper flue gas recycled bellows on arch, the connection corresponding with outer second air entrance in vortex burner of the other end of outer second air flue gas recycled branch pipe and inner second air flue gas recycled branch pipe, it is classified the other end of wind flue gas recycled branch pipe and corresponding classification airduct connection.The invention belongs to W flame boiler energy-saving emission-reduction technical field.
Description
Technical field
The present invention relates to a kind of coal-fired flame boiler, and in particular to a kind of W flame boiler using flue gas recycled, belongs to
W flame boiler energy-saving emission-reduction technical field.
Background technology
Coal reserves is verified China is existing, anthracite portion 11.5%, is that a small number of smokeless coal reserves are rich in the world
One of rich country.Anthracite has the characteristics that degree of coalification is high low with volatile matter content, makes its own be difficult to catch fire and after-flame
Poor-performing.W flame boiler because its lower hearth space is big, temperature is high, flame travel is long and it is first descending then on return and be advantageous to
Fire, turn into and use the preferable type of furnace of anthracite.However, W flame boiler is in actual motion, NOxDischarge capacity is higher, wherein, rotation
Flow burner W flame boiler NOxOriginal emission is up to 1400mg/m3(6%O2)。
NOxIt is to form one of main matter of acid rain, and forms the important substance of photochemical fog and destruction in air
One key factor of atmospheric ozone layer, meanwhile, NOxTrickle nitrate granules will be formed by being further oxided in an atmosphere,
It is an important factor for causing haze weather.Therefore, being directed to coal-burning power plant, country puts into effect《Implement in full the ultralow row in coal-burning power plant
Put and reducing energy consumption programme of work》, to the year two thousand twenty, coal-burning power plant realizes minimum discharge, wherein NOxConcentration of emission is 50mg/m3
(6%O2).If W flame boiler does not take Mitigation options, it is difficult to meets increasingly harsh environmental requirement.Burnout degree technology conduct
A kind of simple, inexpensive, efficient technology, is widely used in the low NO of W flame boilerxIn transformation.Wherein, spiral-flow powdered coal burning
After device W flame boiler sets up burnout degree, boiler NOxDischarge can be greatly lowered, however, because after-flame air quantity accounts for total blast volume
20% or so, after boiler sets up burnout degree so that the classification air quantity of the inside and outside secondary air flow and lower hearth of vortex burner
Reduce, cause the inside and outside Secondary Air of vortex burner and lower hearth to be classified wind undershoot momentum and be greatly lowered, can not ensure
The undershoot depth of breeze airflow, coal dust are reduced in the lower hearth residence time, and when using anthracite, unburned combustible in fly ash is significantly
Degree increase, can reach more than 10%.
At present, flue gas recirculating technique is mainly used in controlling NO in stovexGeneration, for industrial coal powder stove：Chinese invention is special
Profit《A kind of industrial coal powder boiler flue gas recirculation low nitrogen burning method and system》(applying date is July 29, application number in 2016
It is on December 21st, 2016 for 201610614713.6, publication date, call in the following text " file one ") and Chinese invention patent《A kind of flue gas
Recycle low nitrogen stove》(applying date is on April 1st, 2016, Application No. 201620270786.3, publication date are in August, 2016
24 days, call in the following text " file two "), for chain furnace：Chinese invention patent《Flue gas recirculation chain furnace and its flue gas recirculation multilayer
Cloth air control preparation method》(applying date is on January 23rd, 2017, Application No. 201710050149.4, publication date are May 17 in 2017
Day, call in the following text " file three ") and Chinese invention patent《A kind of independent partitions layer burning fume circulating combustion system and its application method》
(applying date is on December 19th, 2016, Application No. 201611181583.8, publication date are on April 26th, 2017, calls " text in the following text
Part four "), for CFBB：Chinese invention patent《Fluidized-bed combustion boiler low nitrogen combustion apparatus》(applying date is 2016
December 18, Application No. 201611173000.7, publication date are on May 10th, 2017, call in the following text " file five "), Chinese invention
Patent《Realize the circulating fluidized bed boiler systems of low-nitrogen oxide discharging》(applying date is May 27, Application No. in 2016
201610360176.7th, publication date is on July 27th, 2016, call in the following text " file six "), above patent of invention is by boiler
Afterbody extracts a part of low-temperature flue gas and is sent into stove, reduces oxygen concentration and ignition temperature in stove, and its main purpose is drop
NO in low stovexGeneration, it is not directed to reduce unburned combustible in fly ash by flue gas recycled, improves boiler efficiency.At present,
Patent of invention using the W flame boiler of flue gas recirculation is considerably less, wherein, Chinese invention patent《A kind of micro- oxygen-enriched combusting W fire
Flame boiler and CO2Emission-reducing system》(applying date is on 2 18th, 2013, Application No. 201310052677.5, publication date are
On May 15th, 2013, call in the following text " file seven ") and Chinese invention patent《A kind of oxygen-enriched combusting W flame steam generator system and its burner
Skill》(applying date is on December 11st, 2012, Application No. 201210531793.0, publication date are on April 3rd, 2013, is called in the following text
" file eight ") disclose a kind of air into stove by flue gas recycled blending pure oxygen be substituted for reduce CO2The side of discharge
Method, also it is not directed to reduce unburned combustible in fly ash by flue gas recycled, improves boiler efficiency.
" file one " to " non-W flame boiler in file six ", but other type of furnaces are (such as：Industrial coal powder stove, chain furnace and
CFBB) lignite and bituminous coal mainly are used, compared with anthracite, lignite and bituminous coal carbonizing degree are low, and volatile matter contains
Amount is high, and after-flame degree is high, so, other type of furnaces are to be used to reduce NO in stove using flue gas recycled main purposexGeneration,
It is not directed to, for reducing unburned combustible in fly ash, boiler efficiency be improved, so the flue gas recycled system of other type of furnaces can not
Applied to W flame boiler.
Research shows that the undershoot depth of breeze airflow has a great influence to W flame boiler coal-ash after-flame degree.Under breeze airflow
Scouring depth degree is bigger, and pulverized coal particle is longer in the residence time of lower hearth, and lower hearth pulverized coal flame degree of filling and coal dust burnout rate are equal
Improve.In addition, breeze airflow undershoot depth is bigger, recirculating zone is bigger under encircleing, and is back to the high-temperature flue gas of arch burner region
Amount is more, is more beneficial for First air breeze airflow and catches fire in time, is advantageous to coal dust after-flame.
The content of the invention
The present invention is solves after setting up burnout degree using the W flame boiler of vortex burner, unburned combustible in fly ash
The problem of significantly raising, and then a kind of W flame boiler using flue gas recycled is provided.
The present invention adopts the technical scheme that to solve above-mentioned technical problem：
The W flame boiler using flue gas recycled of the present invention, the W flame boiler include lower hearth 1, upper furnace 2, stove
Arch 3 and multiple vortex burners 4, multiple vortex burners 4 are distributed along furnace width is square in yi word pattern, and multiple
Vortex burner 4 is symmetrically arranged in the both sides of chimney arch 3, and the lower end of vortex burner 4 is set successively from inside to outside
A wind snout 5, inner second air spout 6 and outer second air spout 7 are equipped with, the W flame boiler also includes multiple lack of gas airducts
8th, multiple classification airducts 9 and multiple fire air nozzles 10, lack of gas airduct 8 and classification airduct 9 are symmetricly set on the front and rear side of chimney arch 3
On wall, the vortex burner of lack of gas airduct 8 and classification airduct 9 and its homonymy corresponds setting, fire air nozzle about 4
10 positioned at lower hearth 1 and the intersection of upper furnace 2；The W flame boiler also includes flue gas recycled system, flue gas recycled system
System includes clearance type flue gas recycled spout 11 on multiple arches, flue gas recycled bellows 12 on arch, flue gas recycled house steward 14, outside
Flue gas recycled wind box branch pipe 19 on Secondary Air flue gas recycled branch pipe 17 and inner second air flue gas recycled branch pipe 18, arch, point
Level wind flue gas recycled branch pipe 20, air-introduced machine 13, flowmeter 15 and valve 16；Clearance type flue gas recycled spout 11 is vertical on arch
The front wall 21 and rear wall 22 for being arranged on the both sides of chimney arch 3 and close boiler arrange that every 12 encircle upper clearance type flue gas recycled
Spout 11 is one group, and a vortex burner 4 of clearance type flue gas recycled spout 11 and its homonymy is one by one on every group of arch
It is correspondingly arranged, flue gas recycled bellows 12 are at the upper clearance type flue gas recycled spout 11 of arch on arch, and air-introduced machine 13 is from boiler
Afterbody introduce flue gas recycled, air-introduced machine 13 outlet connected with flue gas recycled house steward 14, flue gas recycled house steward 14 respectively with
The one of outer second air flue gas recycled branch pipe 17, inner second air flue gas recycled branch pipe 18 and classification wind flue gas recycled branch pipe 20
End connects, and one end of flue gas recycled wind box branch pipe 19 connects with classification wind flue gas recycled branch pipe 20 on arch, is recycled on arch
The other end of flue gas wind box branch pipe 19 connects with encircleing upper flue gas recycled bellows 12, outer second air flue gas recycled branch pipe 17 and interior
The connection corresponding with outer second air entrance in vortex burner 4 of the other end of Secondary Air flue gas recycled branch pipe 18, is classified wind
The other end of flue gas recycled branch pipe 20 connects with corresponding classification airduct 9.
Further, lack of gas wind snout 8 and classification wind snout 9 have a down dip arrangement.
Further, fire air nozzle 10 has a down dip arrangement.
Further, outer second air flue gas recycled branch pipe 17, inner second air flue gas recycled branch pipe 18, arch on recycle
Flowmeter 15 and valve 16 are provided with flue gas wind box branch pipe 19 and classification wind flue gas recycled branch pipe 20.
Further, the flue gas recycled wind speed of clearance type flue gas recycled spout 11 is 40~45m/s on arch.
Further, outer second air flue gas recycled branch pipe 17, inner second air flue gas recycled branch pipe 18 and classification wind again
The top of circulating flue gas branch pipe 20 is vertically arranged, outer second air flue gas recycled branch pipe 17, inner second air flue gas recycled branch
Flowmeter 15 on pipe 18 and classification wind flue gas recycled branch pipe 20 is located at the top of corresponding valve 16, each branch pipe flow meter
15 with the distance of valve 16 is branch pipe diameter five times.
Further, flue gas recycled wind box branch pipe 19 is horizontally disposed on arch.
The beneficial effects of the invention are as follows：
After the inside and outside Secondary Air of vortex burner of the present invention and classification wind blending flue gas recycled so that rotational flow coal dust
The undershoot momentum of the inside and outside Secondary Air of burner and classification wind increases considerably, and the inside and outside Secondary Air of burner and classification wind carry coal
Powder down washing depth increases, and pulverized coal particle is elongated in the lower hearth residence time, is advantageous to after-flame；Flue gas recycled also passes through increasing
If arch on clearance type spout spray into stove in, muzzle velocity in the range of 40~45m/s, static pressure difference effect under, the combustion of low speed
Burner breeze airflow is descending by encircleing the further injection carrying of high speed flue gas recycled that upper clearance type spout sprays, so that coal dust
Depth increase is penetrated under particle, further increases coal dust after-flame；The flue gas recycled sprayed into by encircleing upper clearance type spout in stove
Pulverized coal particle can also effectively be obstructed to be thrown on forward and backward wall water-cooling wall, effectively prevent that forward and backward wall water-cooling wall slagging and high temperature are rotten
Erosion；After being disposed with the turbulent burner W flame boiler use present invention of burnout degree, breeze airflow undershoot depth increases considerably,
The lower recirculating zone increase of arch, the high-temperature flue gas amount for being back to arch burner region increase, and it is timely to be advantageous to First air breeze airflow
Catch fire, be advantageous to coal dust after-flame.
For the present invention on the premise of coal dust after-flame is ensured, burnout degree not only increases furnace air hierarchical level, reduces
NOx is generated in stove, meanwhile, flue gas recycled can reduce in-furnace temperature to a certain extent, and NOx generates further reduction in stove,
Finally emission of NOx of boiler is greatly lowered, while flue gas recycled can effectively prevent forward and backward wall water-cooling wall slagging and height
Temperature corrosion.
Brief description of the drawings
The W flame boiler combustion system using flue gas recycled that Fig. 1 is the present invention arranges schematic diagram；
Fig. 2 Fig. 1 A direction views.
Embodiment
Embodiment one：As shown in Fig. 1~2, present embodiment is included using the W flame boiler of flue gas recycled
Lower hearth 1, upper furnace 2, chimney arch 3 and multiple vortex burners 4, multiple vortex burners 4 are square along furnace width
It is distributed in yi word pattern, and multiple vortex burners 4 are symmetrically arranged in the both sides of chimney arch 3, vortex burner 4
Lower end is disposed with a wind snout 5, inner second air spout 6 and outer second air spout 7, the W flame boiler from inside to outside
Also include multiple lack of gas airducts 8, multiple classification airducts 9 and multiple fire air nozzles 10, lack of gas airduct 8 and classification airduct 9 are symmetrical
Be arranged on the front-rear side walls of chimney arch 3, the vortex burner of lack of gas airduct 8 and classification airduct 9 and its homonymy about 4 one by one
It is correspondingly arranged, fire air nozzle 10 is located at the intersection of lower hearth 1 and upper furnace 2；The W flame boiler also includes recycling cigarette
Gas system, flue gas recycled system include clearance type flue gas recycled spout 11 on multiple arches, flue gas recycled bellows 12 on arch,
Followed again on flue gas recycled house steward 14, outer second air flue gas recycled branch pipe 17 and inner second air flue gas recycled branch pipe 18, arch
Ring flue gas wind box branch pipe 19, classification wind flue gas recycled branch pipe 20, air-introduced machine 13, flowmeter 15 and valve 16；Clearance type on arch
Flue gas recycled spout 11 is vertically set on the front wall 21 of the both sides of chimney arch 3 and close boiler and rear wall 22 is arranged, every 12
Clearance type flue gas recycled spout 11 is one group on arch, one of clearance type flue gas recycled spout 11 and its homonymy on every group of arch
Vortex burner 4, which corresponds, to be set, and flue gas recycled bellows 12 are positioned at the upper clearance type flue gas recycled spout of arch on arch
At 11, air-introduced machine 13 introduces flue gas recycled from boiler tail, and the outlet of air-introduced machine 13 connects with flue gas recycled house steward 14, then follows
Ring flue gas house steward 14 respectively with outer second air flue gas recycled branch pipe 17, inner second air flue gas recycled branch pipe 18 and classification wind again
One end of circulating flue gas branch pipe 20 connects, one end of flue gas recycled wind box branch pipe 19 and classification wind flue gas recycled branch pipe on arch
20 connect, and the other end of flue gas recycled wind box branch pipe 19 connects with encircleing upper flue gas recycled bellows 12 on arch, and outer second air is again
The other end of circulating flue gas branch pipe 17 and inner second air flue gas recycled branch pipe 18 enters with outer second air in vortex burner 4
The corresponding connection of mouth, the other end of classification wind flue gas recycled branch pipe 20 connect with corresponding classification airduct 9.
Embodiment two：The cloth as shown in figure 1, present embodiment lack of gas wind snout 8 and classification wind snout 9 have a down dip
Put.It is arranged such, for changing the incident angle of wind, adjusts furnace flame center and thermo parameters method.It is other composition and
Annexation is identical with embodiment one.
Embodiment three：The arrangement as shown in figure 1, present embodiment fire air nozzle 10 has a down dip.It is arranged such, uses
In the incident angle for changing wind, furnace flame center and thermo parameters method are adjusted.Other compositions and annexation with it is specific
Embodiment one or two is identical.
Embodiment four：As shown in figure 1, present embodiment outer second air flue gas recycled branch pipe 17, inner second air
On flue gas recycled branch pipe 18, arch stream is provided with flue gas recycled wind box branch pipe 19 and classification wind flue gas recycled branch pipe 20
Gauge 15 and valve 16.It is so designed that, passes through following again for each flue gas recycled branch pipe of the aperture reasonable distribution of control valve 16
Ring exhaust gas volumn, flowmeter 15 are used for the flue gas flow for measuring each flue gas recycled branch pipe.Other compositions and annexation and tool
Body embodiment three is identical.
Embodiment five：As shown in figure 1, the recycling of the upper clearance type flue gas recycled spout 11 of present embodiment arch
Flue gas wind speed is 40~45m/s.It is so designed that, under static pressure difference effect, the burner breeze airflow of low speed is by encircleing upper clearance type
The further injection carrying of high speed flue gas recycled that spout sprays is descending, so that penetrating depth increase under pulverized coal particle, further
Improve coal dust after-flame.Other compositions and annexation are identical with embodiment one, two or four.
Embodiment six：As shown in figure 1, present embodiment outer second air flue gas recycled branch pipe 17, inner second air
The top of flue gas recycled branch pipe 18 and classification wind flue gas recycled branch pipe 20 is vertically arranged, outer second air flue gas recycled branch
Flowmeter 15 on pipe 17, inner second air flue gas recycled branch pipe 18 and classification wind flue gas recycled branch pipe 20 is located at corresponding valve
The distance of 16 top, each branch pipe flow meter 15 and valve 16 is five times of branch pipe diameter.Other compositions and annexation
It is identical with embodiment four.
Embodiment seven：As shown in figure 1, the upper flue gas recycled wind box branch pipe 19 of present embodiment arch is horizontally disposed.
Other compositions and annexation are identical with embodiment four or six.
Claims (7)
1. a kind of W flame boiler using flue gas recycled, the W flame boiler includes lower hearth (1), upper furnace (2), chimney arch
(3) it is distributed with multiple vortex burners (4), multiple vortex burners (4) along furnace width is square in yi word pattern, and
Multiple vortex burners (4) are symmetrically arranged in the both sides of chimney arch (3), and the lower end of vortex burner (4) is by interior
A wind snout (5), inner second air spout (6) and outer second air spout (7) outwards are disposed with, the W flame boiler is also
Including multiple lack of gas airducts (8), multiple classification airducts (9) and multiple fire air nozzles (10), lack of gas airduct (8) and classification airduct
(9) it is symmetricly set on the front-rear side walls of chimney arch (3), the rotational flow coal dust of lack of gas airduct (8) and classification airduct (9) and its homonymy fires
Burner (4) corresponds setting up and down, and fire air nozzle (10) is located at the intersection of lower hearth (1) and upper furnace (2)；Its feature
It is：The W flame boiler also includes flue gas recycled system, and flue gas recycled system includes clearance type recycling on multiple arches
Flue gas recycled bellows (12), flue gas recycled house steward (14), outer second air flue gas recycled branch pipe on flue gas spout (11), arch
(17) flue gas recycled wind box branch pipe (19), classification wind flue gas recycled and on inner second air flue gas recycled branch pipe (18), arch
Branch pipe (20), air-introduced machine (13), flowmeter (15) and valve (16)；Clearance type flue gas recycled spout (11) is vertically arranged on arch
In the both sides of chimney arch (3) and the front wall (21) and rear wall (22) arrangement of close boiler, every upper clearance type recycling cigarette of 12 arches
Gas blowout mouth (11) is one group, a vortex burner of clearance type flue gas recycled spout (11) and its homonymy on every group of arch
(4) correspond and set, flue gas recycled bellows (12) are positioned at upper clearance type flue gas recycled spout (11) place of arch, air inducing on arch
Machine (13) introduces flue gas recycled from boiler tail, and air-introduced machine (13) outlet is connected with flue gas recycled house steward (14), recycled
Flue gas house steward (14) respectively with outer second air flue gas recycled branch pipe (17), inner second air flue gas recycled branch pipe (18) and classification
One end of wind flue gas recycled branch pipe (20) connects, one end of flue gas recycled wind box branch pipe (19) and classification wind recycling on arch
Flue gas branch pipe (20) connects, and the other end of flue gas recycled wind box branch pipe (19) connects with the upper flue gas recycled bellows (12) of arch on arch
Logical, the other end and the rotational flow coal dust of outer second air flue gas recycled branch pipe (17) and inner second air flue gas recycled branch pipe (18) fire
The interior outer second air entrance of burner (4) is corresponding to be connected, the other end and corresponding classification wind of classification wind flue gas recycled branch pipe (20)
Manage (9) connection.
2. the W flame boiler according to claim 1 using flue gas recycled, it is characterised in that：Lack of gas wind snout (8) and
Classification wind snout (9) has a down dip arrangement.
3. the W flame boiler according to claim 1 or 2 using flue gas recycled, it is characterised in that：Fire air nozzle
(10) have a down dip arrangement.
4. the W flame boiler according to claim 3 using flue gas recycled, it is characterised in that：Outer second air recycles
Flue gas branch pipe (17), inner second air flue gas recycled branch pipe (18), flue gas recycled wind box branch pipe (19) and classification wind is again on arch
Flowmeter (15) and valve (16) are provided with circulating flue gas branch pipe (20).
5. the W flame boiler using flue gas recycled according to claim 1,2 or 4, it is characterised in that：Clearance type on arch
The flue gas recycled wind speed of flue gas recycled spout (11) is 40~45m/s.
6. the W flame boiler according to claim 4 using flue gas recycled, it is characterised in that：Outer second air recycles
The top of flue gas branch pipe (17), inner second air flue gas recycled branch pipe (18) and classification wind flue gas recycled branch pipe (20) is vertical
Set, outer second air flue gas recycled branch pipe (17), inner second air flue gas recycled branch pipe (18) and classification wind flue gas recycled
Flowmeter (15) on branch pipe (20) is located at the top of corresponding valve (16), each branch pipe flow meter (15) and valve (16)
Distance is five times of branch pipe diameter.
7. the W flame boiler using flue gas recycled according to claim 4 or 6, it is characterised in that：Cigarette is recycled on arch
Gas wind box branch pipe (19) is horizontally disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817716.4A CN107606605B (en) | 2017-09-12 | 2017-09-12 | A kind of W flame boiler using flue gas recycled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817716.4A CN107606605B (en) | 2017-09-12 | 2017-09-12 | A kind of W flame boiler using flue gas recycled |
Publications (2)
| Publication Number | Publication Date |
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| CN107606605A true CN107606605A (en) | 2018-01-19 |
| CN107606605B CN107606605B (en) | 2019-04-09 |
Family
ID=61063310
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710817716.4A Active CN107606605B (en) | 2017-09-12 | 2017-09-12 | A kind of W flame boiler using flue gas recycled |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945164A (en) * | 2019-03-11 | 2019-06-28 | 哈尔滨工业大学 | A kind of W flame boiler preventing fluid field in furnace deflection using flue gas recycled |
| CN111207386A (en) * | 2020-01-16 | 2020-05-29 | 吉林宏日新能源股份有限公司 | Low-nitrogen biomass combustion method and biomass hot blast stove |
| CN111457360A (en) * | 2020-03-16 | 2020-07-28 | 哈尔滨工业大学 | W flame boiler with anti-slagging air |
| CN113531520A (en) * | 2021-08-02 | 2021-10-22 | 国能南京电力试验研究有限公司 | W flame boiler suitable for difficult-to-burn coal and easy-to-burn coal and adjusting method thereof |
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| CN106247322A (en) * | 2016-07-28 | 2016-12-21 | 哈尔滨工业大学 | The W flame boiler that a kind of weary gas windage yaw is put |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945164A (en) * | 2019-03-11 | 2019-06-28 | 哈尔滨工业大学 | A kind of W flame boiler preventing fluid field in furnace deflection using flue gas recycled |
| CN111207386A (en) * | 2020-01-16 | 2020-05-29 | 吉林宏日新能源股份有限公司 | Low-nitrogen biomass combustion method and biomass hot blast stove |
| CN111457360A (en) * | 2020-03-16 | 2020-07-28 | 哈尔滨工业大学 | W flame boiler with anti-slagging air |
| CN113531520A (en) * | 2021-08-02 | 2021-10-22 | 国能南京电力试验研究有限公司 | W flame boiler suitable for difficult-to-burn coal and easy-to-burn coal and adjusting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107606605B (en) | 2019-04-09 |
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