CN107559858B - Turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device - Google Patents
Turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device Download PDFInfo
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- CN107559858B CN107559858B CN201710818425.7A CN201710818425A CN107559858B CN 107559858 B CN107559858 B CN 107559858B CN 201710818425 A CN201710818425 A CN 201710818425A CN 107559858 B CN107559858 B CN 107559858B
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Abstract
Turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device, it is related to a kind of W flame boiler.The present invention solves existing turbulent burner W flame boiler, and there are NOxThe problem of discharge amount height, out of stock low efficiency.First order ammonia-gas spraying device center is placed on the upper edge of preceding chimney arch or rear chimney arch, the distance between the upper edge of second level ammonia-gas spraying device center line and preceding chimney arch or rear chimney arch L is 1m~2m, first order ammonia-gas spraying device center is located in same level, and second level ammonia-gas spraying device center is located on the same horizontal plane；First order ammonia-gas spraying device, second level ammonia-gas spraying device include inner tube, outer tube and multiple swirl vanes, inner and outer tubes coaxial arrangement, multiple swirl vanes are uniformly arranged between the inner and outer pipe sections, inner tube is direct current spout, it arranges that multiple swirl vanes are eddy flow spout between outer tube and inner tube, forms the ammonia-gas spraying device of interior direct current contour stealth.The invention belongs to W flame boiler NOxTechnical field of emission reduction.
Description
Technical field
The present invention relates to a kind of W flame boilers, and in particular to a kind of to arrange that two-stage angle in upper furnace high temperature reduction area
The turbulent burner W flame boiler for the interior straight outward turning ammonia-gas spraying device adjusted, belongs to W flame boiler NOxTechnical field of emission reduction.
Background technique
NOxThere is intoxicating effect to animal and human body, is to form one of main matter of acid rain, and formed photochemical in atmosphere
It learns the important substance of smog and destroys a key factor of atmospheric ozone layer.The NO of coal-fired power station boiler dischargexIt is atmosphere dirt
One of main source of dye controls NOxDischarge has become one of global concern problem.Using the W flame pot of turbulent burner
Furnace because in furnace burn hierarchical level it is low, meanwhile, burner swirl secondary air wrap up First air, coal dust firing initial oxidation is strong,
Furnace outlet NOxDischarge amount is up to 1400mg/m3(6%O2)." implement in full coal-burning power plant's minimum discharge and reducing energy consumption work
Scheme " it requires, the year two thousand twenty is arrived, coal-burning power plant realizes minimum discharge, wherein NOxConcentration of emission is 50mg/m3(6%O2), reduce rotation
Flow burner W flame boiler NOxIt discharges extremely urgent.
Currently, the reduction coal-burning boiler NO generallyd use both at home and abroadxThere are mainly two types of the technologies of concentration of emission: first is that low NOx
Combustion technology；Second is that gas denitrifying technology.Using the low NO of turbulent burner W flame boilerxIn terms of combustion technology, Chinese invention
(applying date is 2016 10 to patent " a kind of W flame boiler multi-ejection grading combustion device for using vortex burner "
Months 26 days, application No. is 201610949784.1, publication date be on November 3rd, 2016, call " file one " in the following text) propose eddy flow combustion
Burner W flame boiler multi-ejection is classified low NOxCombustion technology, NO under boiler full load situationxConcentration of emission and unburned carbon in flue dust
It is substantially reduced, but boiler load changes greatly in actual motion, boiler load change will lead to breeze airflow undershoot depth in furnace
It changes, when boiler is run under middle-low load, the inventive technique is due to lack of gas wind snout, classification wind snout and burnout degree spray
Mouth is fixed, can not swing up and down, can not effectively realize the multi-ejection grading combustion of breeze airflow, NOxControl effect is poor,
Unburned carbon in flue dust remains relatively high level.In terms of gas denitrifying technology, Chinese invention patent " a kind of industrial furnace, kiln
Denitrating system and its method of denitration " (applying date is on November 10th, 2011, application No. is 201110352935.2, publication date to be
On June 20th, 2012, call " file two " in the following text), Chinese invention patent " large-sized boiler high-temperature flue gas region spray ammonia denitrating system and
Denitrating technique " (applying date is on January 28th, 2016, is on April 20th, 2016 application No. is 201610056650.7, publication date,
Call " file three " in the following text) it is to carry out spray ammonia, technical principle or traditional selection in the flue in oxidizing atmosphere
Property non-catalytic reduction (SNCR) technology.Selective non-catalytic reduction (SNCR) technology is to the harsh (temperature of denitration reaction temperature requirement
Section is 850 DEG C~1100 DEG C), reaction temperature window narrows work as boiler using after the inventive technique of " file three " and " file four "
When high load capacity and underrun, spray ammonia regional temperature is easy to reducing agent then occur beyond denitration reaction required temperature range
The problem of dosage increases, and the escaping of ammonia increases, and out of stock efficiency is lower." reduction of multi-point injection ammonia atomization reduces Chinese invention patent
Gas fired-boiler NOxThe method of discharge " (applying date is on January 26th, 2016, application No. is 201610050265.1, publication date to be
On May 4th, 2016, call " file four " in the following text) propose the multiple spot spray ammonia reduction NO in gas fired-boiler primary zonexMethod, the hair
Bright and undeclared boiler is that spray ammonia is carried out in the primary zone for adding burnout degree.Studies have shown that in primary zone, (temperature is general
Higher than 1000 DEG C) spray ammonia reduction NOxIt generates, primary zone necessarily is in strongly reducing atmosphere that (primary zone excess air coefficient is general
It needs lower than 0.8), file four sprays ammonia using in the primary zone in oxidizing atmosphere, cannot achieve and lowers NO in furnacexIt generates
Purpose.In addition, only proposing a kind of denitration in the stove technique or method in " file two ", " file three " and " file four ", do not have
Body provides spray ammonia structure.
Summary of the invention
The present invention is that there are NO for the existing turbulent burner W flame boiler of solutionxDischarge amount is high, out of stock low efficiency asks
Topic, and then a kind of turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device is provided.
The technical solution adopted by the present invention to solve the above technical problem is:
Turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device of the invention include upper furnace 1, lower hearth 2,
Preceding chimney arch 3, rear chimney arch 4 and the vortex burner 5 of multiple biasings, the vortex burner 5 of multiple biasings is symmetrically
It is arranged on preceding chimney arch 3 and rear chimney arch 4, the W flame boiler further includes multiple level-one ammonia-gas spraying devices 6, multiple second levels spray ammonia dress
Set 7, multiple fire air nozzles 8, multiple lack of gas wind snouts 9 and multiple classification wind snouts 10；Lack of gas wind snout 9 and classification wind snout
10 are symmetricly set on the side wall of preceding chimney arch 3 and rear chimney arch 4, the strong reduced zone of high temperature on the front wall 11 and rear wall 12 of upper furnace 1
Inside symmetrically and evenly arrange first order ammonia-gas spraying device 6 and second level ammonia-gas spraying device 7, first order ammonia-gas spraying device 6 and second level spray ammonia dress
It sets 7 and is arranged in 8 lower section of fire air nozzle, before 6 center of first order ammonia-gas spraying device is placed on the upper edge of chimney arch 3 or rear chimney arch 4, the
The distance between the upper edge of 7 center line of second level ammonia-gas spraying device and preceding chimney arch 3 or rear chimney arch 4 L is 1m~2m, and the first order sprays ammonia dress
It sets 6 centers to be located in same level, ammonia-gas spraying device 7 center in the second level is located on the same horizontal plane；First order ammonia-gas spraying device
6, second level ammonia-gas spraying device 7 includes inner tube 13, outer tube 14 and multiple swirl vanes 15, and inner tube 13 and outer tube 14 are coaxially disposed,
Multiple swirl vanes 15 are uniformly arranged between inner tube 13 and outer tube 14, and inner tube 13 is direct current spout, outer tube 14 and inner tube 13 it
Between arrange that multiple swirl vanes 15 are eddy flow spout, formed in direct current contour stealth ammonia-gas spraying device.
Further, first order ammonia-gas spraying device 6 and second level ammonia-gas spraying device 7, which have a down dip, arranges and swings up and down setting.
Further, the angle α range that the center line of first order ammonia-gas spraying device 6 and horizontal plane are formed is 30 °~60 °.
Further, the angle β range that the center line of second level ammonia-gas spraying device 7 and horizontal plane are formed is 15 °~45 °.
Further, fire air nozzle 8, which has a down dip, arranges and can swing up and down, 8 center line of fire air nozzle and horizontal plane
Angular range is 10 °~40 °, and each 8 center of fire air nozzle is located at same level.
Further, lack of gas wind snout 9, which has a down dip, arranges and can swing up and down, 9 center line of lack of gas wind snout and horizontal plane
Angular range is 20 °~40 °, and each 9 center of lack of gas wind snout is located at same level.
Further, classification wind snout 10, which has a down dip, arranges and can swing up and down, and is classified 10 center line of wind snout and horizontal plane
Angular range be 10 °~40 °, classification 10 center of wind snout be located at same level.
The beneficial effects of the present invention are:
The inner tube of first order ammonia-gas spraying device and second level ammonia-gas spraying device of the present invention uses direct current spout, is disposed in outer tube more
A swirl vane, forms the interior straight evolute ammonia-gas spraying device of interior direct current contour stealth, and inner tube sprays ammonia using direct current, ensure that injection
The range of ammonium hydroxide is effectively mixed with the flue gas at burner hearth center, reduces NOx, outer tube sprays ammonia using eddy flow, and the ammonium hydroxide of Qiang Xuanzhuan adds
The strong disturbance with flue gas, improves ammonium hydroxide and mixes with flue gas degree, improve the denitration efficiency in furnace；
The technology of the present invention arranges that two-stage ammonia-gas spraying device, high temperature restore by force below the upper furnace burnout degree in the strong reducing zone of high temperature
Area's spray ammonia can overcome traditional selective non-catalytic reduction (SNCR) technology to the rigors (humidity province of denitration reaction temperature
Between be 850 DEG C~1100 DEG C), widened the temperature window of denitration reaction generation, maximum temperature is increased to 1400 DEG C, largely
On avoid spray ammonia regional temperature and be easy beyond denitration reaction required temperature range, reducing agent dosage is big, and the escaping of ammonia is high, out of stock effect
The low problem of rate；
When boiler load changes, position of the flame kernel in furnace changes.The present invention can be according to load variations tune
Section lack of gas wind snout is classified the angle of wind snout and fire air nozzle to change furnace flame center, sprays ammonia-gas spraying device
Ammonium hydroxide out can spray into always temperature 850 DEG C~1400 DEG C, excess air coefficient be in 0.7~0.85 between high temperature also
In immunogenic region, NH3In this high-temperature reductibility region with the NO in flue gasxChemical reduction reaction occurs and generates free of contamination N2
And H2O reduces NO in flue gasxConcentration.The present invention sprays ammonia using two-stage, when boiler load increases, NO in boilerxProduction quantity
Height can increase two-stage ammonia spraying amount simultaneously, when boiler load reduces, NO in boilerxProduction quantity is low, can suitably reduce by
Second level ammonia spraying amount, two-stage spray ammonia and cooperate, and are utmostly effectively reduced NO in furnacex.It is dropped using method of the present invention
Low W flame boiler NOxConcentration of emission can satisfy the need of work of boiler different load, and out of stock efficiency is up to 55% in furnace
More than, it invests low with operating cost；
In addition, the technology of the present invention NO low with " file one " turbulent burner W flamexCombustion technology difference:
Because of load variations, breeze airflow undershoot depth changes in furnace, and " file one " inventive technique is due to lack of gas wind, classification wind
Be with fire air nozzle it is fixed, when boiler load changes, the fractional combustion of breeze airflow can not be effectively realized, control
NO processedxEffect be deteriorated.The present invention can change according to boiler load, by changing fire air nozzle, the lack of gas that can swing up and down
Wind snout, the angle for being classified wind snout, effectively enhance the classification injection degree to breeze airflow, reduce NO in furnacexGeneration.
Meanwhile the above adjustment can also change according to boiler load, change the flame central position in W flame boiler, and then change furnace
The distribution in interior temperature field preferably meets the requirement of the strong reducing zone spray ammonia of high temperature.
The difference of the technology of the present invention and " file two ", " file three " and " file four " denitration in the stove technology:
" file two " and " file three " is although denitration in the stove technology realizes furnace reduction NO to a certain extentx, but institute
The method of description is flue-gas temperature is 800~1100 DEG C, sprays ammonia in the horizontal flue under oxidizing atmosphere, and technical principle is also
It is traditional selective non-catalytic reduction (SNCR) technology, denitration chemical reaction temperature window narrows spray ammonia low efficiency, the escaping of ammonia
It is more, control NOxEffect it is poor.By spraying ammonia primary zone (temperature is generally greater than 1000 DEG C), NO is reducedxIt generates, primary zone must
Must be in (primary zone excess air coefficient be generally required lower than 0.8) in strongly reducing atmosphere, " file four " is using in oxidation
Property atmosphere primary zone spray ammonia, cannot achieve lower furnace in NOxThe purpose of generation." file two ", " file three " and " file simultaneously
The structure of spray ammonia mouth is not provided in four ".It is not both the high temperature strong reducing property gas below burnout degree that the present invention is maximum with its
Ammonia is sprayed in atmosphere, the temperature range upper limit of denitration reaction can be expanded to 1400 DEG C, can satisfy wanting for boiler different load operation
It asks, denitration efficiency greatly improves.Meanwhile the present invention enables atomized ammonia to spray into upper furnace always by adjusting each spout angle
In the strong reduced zone of thorax high temperature.The present invention sprays ammonia using two-stage, and the inner tube of straight outward turning ammonia-gas spraying device is sprayed using direct current in two-stage
Mouthful, multiple swirl vanes are disposed in outer tube.Inner tube direct current spray ammonia, ensure that injection ammonium hydroxide range, can effectively with furnace
The flue gas at thorax center mixes, and reduces NOxGeneration, outer tube adds swirl vane, so that ammonium hydroxide is formed strong rotation, strengthen ammonium hydroxide
With the disturbance of flue gas, so that ammonium hydroxide and flue gas is reached better mixed effect, effectively improve the denitration efficiency in furnace.
In addition, present invention NO low with " file one " turbulent burner W flamexCombustion technology is compared: because of load variations, in furnace
Breeze airflow undershoot depth change, " file one " due to lack of gas wind, classification wind and fire air nozzle be it is fixed, work as boiler load
When changing, the fractional combustion of breeze airflow can not be effectively realized, controls NOxEffect be deteriorated；The present invention can be according to pot
Furnace load variations, by changing the fire air nozzle that can be swung up and down, lack of gas wind snout, the angle for being classified wind snout, effectively
Enhance the classification injection degree to breeze airflow, reduces NO in furnacexGeneration；Meanwhile the present invention can become according to boiler load
Change, change the flame central position in W flame boiler, and then change the distribution of temperature field in furnace, preferably meets high temperature by force also
The requirement of former area's spray ammonia；
The present invention is compared with " file two ", " file three " and " file four " denitration in the stove technology: " file two " and " file
Although three " denitration in the stove technologies realize furnace reduction NO to a certain extentx, but described method is in flue-gas temperature
800~1100 DEG C, spray ammonia, technical principle or traditional selective non-catalytic reduction in the horizontal flue under oxidizing atmosphere
(SNCR) technology, denitration chemical reaction temperature window narrows spray ammonia low efficiency, and the escaping of ammonia is more, control NOxEffect it is poor；Pass through
Ammonia is sprayed primary zone (temperature is generally greater than 1000 DEG C), reduces NOxIt generates, primary zone necessarily is in strongly reducing atmosphere (main combustion
Area's excess air coefficient is generally required lower than 0.8)." file four " sprays ammonia using in the primary zone in oxidizing atmosphere, can not
It realizes and lowers NO in furnacexThe purpose of generation；Do not provide spray ammonia mouth in " file two ", " file three " and " file four " simultaneously
Structure.
And the present invention and its it is maximum be not both to spray ammonia in high temperature strong reducing property atmosphere below the burnout degree, can be anti-by denitration
The temperature range upper limit answered is expanded to 1400 DEG C, can satisfy the requirement of boiler different load operation, and denitration efficiency greatly improves；
Meanwhile the present invention enables atomized ammonia to be sprayed into the strong reduced zone of upper furnace high temperature always by adjusting each spout angle；
The present invention sprays ammonia using two-stage, and the inner tube of straight outward turning ammonia-gas spraying device uses direct current spout in two-stage, is disposed in outer tube multiple
Swirl vane.Inner tube direct current sprays ammonia, ensure that the range of injection ammonium hydroxide, can effectively mix with the flue gas at burner hearth center, drops
Low NOxGeneration, outer tube adds swirl vane, ammonium hydroxide made to form strong rotation, strengthen the disturbance of ammonium hydroxide and flue gas, make ammonium hydroxide
Reach better mixed effect with flue gas, effectively improves the denitration efficiency in furnace.
Detailed description of the invention
Fig. 1 is the total system section of the turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device of the invention
Flow field schematic diagram；
Fig. 2 is the structural schematic diagram of first order ammonia-gas spraying device 6 and second level ammonia-gas spraying device 7 in specific embodiment one.
Specific embodiment
Specific embodiment 1: as shown in Fig. 1~2, the eddy flow combustion with interior straight outward turning ammonia-gas spraying device of present embodiment
Burner W flame boiler includes upper furnace 1, lower hearth 2, preceding chimney arch 3, rear chimney arch 4 and the vortex burner 5 of multiple biasings,
The vortex burner 5 of multiple biasings is symmetrically arranged on preceding chimney arch 3 and rear chimney arch 4, and the W flame boiler further includes
Multiple level-one ammonia-gas spraying devices 6, multiple second level ammonia-gas spraying devices 7, multiple fire air nozzles 8, multiple lack of gas wind snouts 9 and multiple classifications
Wind snout 10；Lack of gas wind snout 9 and classification wind snout 10 are symmetricly set on the side wall of preceding chimney arch 3 and rear chimney arch 4, upper furnace 1
Front wall 11 and rear wall 12 on symmetrically and evenly arrange first order ammonia-gas spraying device 6 and second level ammonia-gas spraying device in the strong reduced zone of high temperature
7, first order ammonia-gas spraying device 6 and second level ammonia-gas spraying device 7 are arranged in 8 lower section of fire air nozzle, and 6 center of first order ammonia-gas spraying device is set
On the upper edge of preceding chimney arch 3 or rear chimney arch 4, the upper edge of 7 center line of second level ammonia-gas spraying device and preceding chimney arch 3 or rear chimney arch 4
The distance between L be 1m~2m, 6 center of first order ammonia-gas spraying device is located in same level, 7 centre bit of second level ammonia-gas spraying device
In on the same horizontal plane；First order ammonia-gas spraying device 6, second level ammonia-gas spraying device 7 include inner tube 13, outer tube 14 and multiple eddy flows
Blade 15, inner tube 13 and outer tube 14 are coaxially disposed, and multiple swirl vanes 15 are uniformly arranged between inner tube 13 and outer tube 14, inner tube
13 be direct current spout, arranges that multiple swirl vanes 15 are eddy flow spout between outer tube 14 and inner tube 13, forms interior direct current contour stealth
Ammonia-gas spraying device.
Specific embodiment 2: as shown in Figure 1, present embodiment first order ammonia-gas spraying device 6 and second level ammonia-gas spraying device 7 are equal
It has a down dip and arranges and swing up and down setting.So set, for changing distinguished and admirable incident angle.Other compositions and connection relationship and specific
Embodiment one is identical.
Specific embodiment 3: as shown in Figure 1, the center line of present embodiment first order ammonia-gas spraying device 6 and horizontal plane shape
At angle α range be 30 °~60 °.It is designed in this way, for changing distinguished and admirable incident angle.Other compositions and connection relationship and tool
Body embodiment one or two is identical.
Specific embodiment 4: as shown in Figure 1, the center line of present embodiment second level ammonia-gas spraying device 7 and horizontal plane shape
At angle β range be 15 °~45 °.It is designed in this way, for changing distinguished and admirable incident angle.It is other composition and connection relationship with
Specific embodiment three is identical.
Specific embodiment 5: as shown in Figure 1, present embodiment fire air nozzle 8 have a down dip arrange and can swing up and down, fire
The angular range of 8 center line of wind snout and horizontal plane is 10 °~40 ° to the greatest extent, and each 8 center of fire air nozzle is located at same level.
It is designed in this way, for changing distinguished and admirable incident angle.Other compositions and connection relationship are the same as the specific implementation mode 1,2 or 4.
Specific embodiment 6: as shown in Figure 1, present embodiment lack of gas wind snout 9 have a down dip arrange and can swing up and down, it is weary
The angular range of 9 center line of gas wind snout and horizontal plane is 20 °~40 °, and each 9 center of lack of gas wind snout is located at same level.
It is designed in this way, for changing distinguished and admirable incident angle.Other compositions and connection relationship are identical as specific embodiment five.
Specific embodiment 7: as shown in Figure 1, present embodiment classification wind snout 10 have a down dip arrange and can swing up and down,
The angular range for being classified 10 center line of wind snout and horizontal plane is 10 °~40 °, and classification 10 center of wind snout is located at same level
Face.It is designed in this way, for changing distinguished and admirable incident angle.Other compositions and connection relationship and specific embodiment one, two, four or six
It is identical.
Claims (7)
1. a kind of turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device, the W flame boiler includes upper furnace
(1), lower hearth (2), preceding chimney arch (3), rear chimney arch (4) and the vortex burner (5) of multiple biasings, the eddy flow of multiple biasings
Coal burner (5) is symmetrically arranged on preceding chimney arch (3) and rear chimney arch (4), it is characterised in that: the W flame boiler is also
Including multiple level-one ammonia-gas spraying devices (6), multiple second level ammonia-gas spraying devices (7), multiple fire air nozzles (8), multiple lack of gas wind snouts
(9) and multiple classification wind snouts (10)；Lack of gas wind snout (9) and classification wind snout (10) be symmetricly set on preceding chimney arch (3) and after
On the side wall of chimney arch (4), is symmetrically and evenly arranged on the front wall (11) and rear wall (12) of upper furnace (1) in the strong reduced zone of high temperature
Level-one ammonia-gas spraying device (6) and second level ammonia-gas spraying device (7), first order ammonia-gas spraying device (6) and second level ammonia-gas spraying device (7) are arranged in
Below fire air nozzle (8), first order ammonia-gas spraying device (6) center is placed on the upper edge of preceding chimney arch (3) or rear chimney arch (4), the
The distance between second level ammonia-gas spraying device (7) center line and preceding chimney arch (3) or upper edge of rear chimney arch (4) (L) are 1m~2m, first
Grade ammonia-gas spraying device (6) center is located in same level, and ammonia-gas spraying device (7) center in the second level is located on the same horizontal plane；The
Level-one ammonia-gas spraying device (6), second level ammonia-gas spraying device (7) are interior including inner tube (13), outer tube (14) and multiple swirl vanes (15)
(13) and outer tube (14) coaxial arrangement are managed, multiple swirl vanes (15) are uniformly arranged between inner tube (13) and outer tube (14), interior
Managing (13) is direct current spout, and multiple swirl vanes (15) are arranged between outer tube (14) and inner tube (13) for eddy flow spout, in formation
The ammonia-gas spraying device of direct current contour stealth.
2. the turbulent burner W flame boiler according to claim 1 with interior straight outward turning ammonia-gas spraying device, feature exist
It has a down dip in: first order ammonia-gas spraying device (6) and second level ammonia-gas spraying device (7) and arrangement and swings up and down setting.
3. the turbulent burner W flame boiler according to claim 1 or 2 with interior straight outward turning ammonia-gas spraying device, feature
Be: angle (α) range that the center line and horizontal plane of first order ammonia-gas spraying device (6) are formed is 30 °~60 °.
4. the turbulent burner W flame boiler according to claim 3 with interior straight outward turning ammonia-gas spraying device, feature exist
In: angle (β) range that the center line and horizontal plane of second level ammonia-gas spraying device (7) are formed is 15 °~45 °.
5. the turbulent burner W flame boiler according to claim 1,2 or 4 with interior straight outward turning ammonia-gas spraying device, special
Sign is: fire air nozzle (8), which has a down dip, to be arranged and can swing up and down, the angle model of fire air nozzle (8) center line and horizontal plane
Enclosing is 10 °~40 °, and each fire air nozzle (8) center is located at same level.
6. the turbulent burner W flame boiler according to claim 5 with interior straight outward turning ammonia-gas spraying device, feature exist
In: lack of gas wind snout (9), which has a down dip, to be arranged and can swing up and down, and the angular range of lack of gas wind snout (9) center line and horizontal plane is
20 °~40 °, each lack of gas wind snout (9) center is located at same level.
7. the turbulent burner W flame boiler of interior straight outward turning ammonia-gas spraying device according to claim 1, is had described in 2,4 or 6,
Be characterized in that: classification wind snout (10), which has a down dip, to be arranged and can swing up and down, and the folder of wind snout (10) center line and horizontal plane is classified
Angular region is 10 °~40 °, and classification wind snout (10) center is located at same level.
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| CN201710818425.7A CN107559858B (en) | 2017-09-12 | 2017-09-12 | Turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device |
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| CN201710818425.7A CN107559858B (en) | 2017-09-12 | 2017-09-12 | Turbulent burner W flame boiler with interior straight outward turning ammonia-gas spraying device |
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| CN108180469B (en) * | 2018-02-12 | 2023-07-14 | 东方电气集团东方锅炉股份有限公司 | Method and device for adjusting steam temperature by using burner or powder process exhaust gas |
| CN108744914B (en) * | 2018-06-12 | 2021-07-02 | 江苏瑞立环保工程股份有限公司 | Online autocatalytic denitration method for sintering smoke dust |
| JP7081407B2 (en) | 2018-09-11 | 2022-06-07 | 株式会社Ihi | boiler |
| CN109945162B (en) * | 2019-03-11 | 2019-12-10 | 哈尔滨工业大学 | W flame boiler with unequal burner angles on front furnace arch and rear furnace arch |
| CN110302671A (en) * | 2019-04-25 | 2019-10-08 | 太仓北新建材有限公司 | A kind of spray ammonia control system |
| CN111450681B (en) * | 2020-04-14 | 2022-06-21 | 安徽工业大学 | Denitration, desulfurization and dust removal integrated system for supercritical carbon dioxide coal-fired boiler |
| CN111450682B (en) * | 2020-04-14 | 2021-02-26 | 安徽工业大学 | Deep denitration process for supercritical carbon dioxide coal-fired boiler |
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| JPH0268403A (en) * | 1988-09-02 | 1990-03-07 | Babcock Hitachi Kk | Solid fuel burner |
| CN103831016B (en) * | 2014-03-18 | 2015-07-22 | 华中科技大学 | Denitrification operation optimization method of SCR (selective catalytic reduction) system of W flame boiler |
| CN106247321B (en) * | 2016-07-29 | 2018-08-24 | 东方电气集团东方锅炉股份有限公司 | A kind of W flame boiler for deeply denitration combustion method |
| CN206027413U (en) * | 2016-09-13 | 2017-03-22 | 中国华能集团公司 | W of thermal power plant type boiler SNCR deNOx systems |
| CN106524137B (en) * | 2016-10-26 | 2019-03-12 | 哈尔滨工业大学 | A kind of multi-ejection classification W flame boiler using vortex burner |
| CN206168224U (en) * | 2016-11-09 | 2017-05-17 | 山西华仁通电力科技有限公司 | High -efficient denitrification facility of W flame boiler |
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