CN106247322B - The W flame boiler that a kind of lack of gas windage yaw is put - Google Patents
The W flame boiler that a kind of lack of gas windage yaw is put Download PDFInfo
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- CN106247322B CN106247322B CN201610605676.2A CN201610605676A CN106247322B CN 106247322 B CN106247322 B CN 106247322B CN 201610605676 A CN201610605676 A CN 201610605676A CN 106247322 B CN106247322 B CN 106247322B
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- boiler
- ajutage
- gas wind
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
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- 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
- F23C2202/00—Fluegas recirculation
- F23C2202/20—Premixing fluegas with fuel
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The W flame boiler that a kind of lack of gas windage yaw is put, the present invention relates to a kind of W flame boiler.For the present invention to solve prematurely, directly to mix the effect for failing to give full play of lack of gas wind fractional combustion with the thick coal culm air-flow of undershoot using the W flame boiler lack of gas wind of turbulent burner, weakening lack of gas wind reduces NOxAbility, cause NOxDischarge capacity it is high, while the problem of low temperature lack of gas wind directly washes away combustion stability and coal dust after-flame in the high temperature thick coal culm airflow influence stove of undershoot, the solution of the present invention is：Each lack of gas ajutage of W flame boiler is divided into two isometrical lack of gas wind branch pipes, two isometrical lack of gas wind branch pipe cross-sectional area sums are equal with lack of gas ajutage cross-sectional area, angle between the center line and horizontal plane of each lack of gas wind branch pipe is equal, angle is between 20 °~30 °, each lack of gas wind branch pipe center is located in same horizontal line, and the distance of the bottom of lack of gas wind branch pipe to chimney arch lower edge is in the range of 2500mm~3000mm.The invention belongs to boiler combustion field.
Description
Technical field
The present invention relates to a kind of boiler, and in particular to the W flame boiler that a kind of lack of gas windage yaw is put.
Background technology
At present, the W flame boiler that vortex burner is disposed with arch occupies certain proportion in China.This use
The W flame boiler of turbulent burner is in low volatile coal particularly anthracite in the prevalence of problems with.
W flame boiler NOxDischarge capacity is higher, up to 1500~1800mg/m3。NOxThere is intoxicating effect to animal and human body,
It is to form one of main matter of acid rain, and forms the important substance of photochemical fog in air and destroy atmospheric ozone layer
One key factor.NOxTrickle nitrate granules will be formed by being further oxided in an atmosphere, be the important sources of haze.
W flame boiler is not easy after-flame due to using coal for volatile matter relatively low anthracite and meager coal, coal dust, and flying dust is flammable
Thing content is higher.Unburned combustible in fly ash height can cause boiler incomplete combustion loss increase, reduce boiler efficiency.
W flame boiler, along with coal quality is changeable, causes coal due to the complexity and the flame retardancy of fire coal of this body structure of boiler
Powder catches fire difficulty, and combustion instability, is particularly in frequent variable load operation, has more aggravated burning for peak regulation, unit
Unstability, the unstability of boiler combustion have severely impacted the security and economy of power plant.
Using turbulent burner W flame boiler First air breeze airflow after turbulent burner enrichment facility,
So that 50% First air and 10%~15% coal dust are separated, the spray of lack of gas spout is directed vertically down onto through lack of gas ajutage
Enter hearth combustion.It is closer to the distance in vertical direction with encircleing the lack of gas wind snout on lower water-cooling wall to encircle forward spin flow burner, and on
It is lower to correspond arrangement, it will certainly so cause lack of gas wind prematurely, directly to be mixed with the thick coal culm air-flow of undershoot.Lack of gas wind
Prematurely mixed with the thick coal culm air-flow of undershoot, fail to give full play of the effect of lack of gas wind fractional combustion, weaken lack of gas wind
Reduce NOxAbility；Cause NOxDischarge capacity it is excessive, pollute environment, in addition, the high temperature that low temperature lack of gas wind directly washes away undershoot is dense
Breeze airflow, breeze gas flow temperature reduce, and steady ability of firing declines, while also influences coal dust after-flame.
The content of the invention
The present invention for solve using turbulent burner W flame boiler lack of gas wind prematurely, the directly dense coal with undershoot
The mixing of powder air-flow fails to give full play of the effect of lack of gas wind fractional combustion, and weakening lack of gas wind reduces NOxAbility, cause NOx
Discharge capacity is high, pollutes environment；Low temperature lack of gas wind directly washes away flameholding in the high temperature thick coal culm airflow influence stove of undershoot at the same time
Property and the problem of coal dust after-flame, and then provide the W flame boiler that a kind of lack of gas windage yaw is put.
The present invention adopts the technical scheme that to solve the above problems：It includes upper furnace body, lower furnace body, preceding chimney arch, rear stove
Arch, 2N lack of gas ajutage, 4N lack of gas wind branch pipe, 2N classification air hose, 2N vortex burner, upper furnace body, lower stove
Body, preceding chimney arch and rear chimney arch form burner hearth, before N number of vortex burner is arranged on chimney arch, N number of vortex burner cloth
Put on rear chimney arch, and each vortex burner on preceding chimney arch respectively with a vortex burner on rear chimney arch
It is oppositely arranged, N number of lack of gas ajutage is arranged on boiler front water wall, each lack of gas ajutage on boiler front water wall
Lower section is correspondingly provided with a classification air hose, and the bottom for being classified air hose is in tilted layout on boiler front water wall, and N number of lack of gas are sent
Air hose is arranged on boiler rear water wall, and one point is correspondingly provided with below each lack of gas ajutage on boiler rear water wall
Level air hose, and be classified air hose bottom be in tilted layout on boiler rear water wall, the top of each lack of gas ajutage with one
Vortex burner sealing connection, the bottom both sides of each lack of gas ajutage are arranged with two lack of gas wind branch pipes, and two weary
Gas wind branch pipe is obliquely installed, and the bottom of lack of gas ajutage is connected with the end sealing of two lack of gas wind branch pipes, positioned at boiler
Two lack of gas wind branch pipes of lack of gas ajutage bottom are connected with boiler front water wall on front water wall, the wall water after boiler
Two lack of gas wind branch pipes of lack of gas ajutage bottom are connected with boiler rear water wall in cold wall.
The beneficial effects of the invention are as follows：
1st, the W flame boiler that lack of gas windage yaw of the present invention is put is conducive to coal dust after-flame, while the stability of strengthen burning.
W flame boiler lack of gas wind-warm syndrome is 90 DEG C or so, and the thick coal culm gas flow temperature after catching fire in stove is higher than 1000 DEG C, weary
Gas wind-warm syndrome is far below the temperature of the thick coal culm air-flow after catching fire.When lack of gas wind does not bias, the lack of gas wind of lower temperature directly washes away
High temperature thick coal culm air-flow, high temperature thick coal culm gas flow temperature reduces, totally unfavorable to the after-flame of coal dust, while coal dust stablizes burning
Ability declines；Lack of gas windage yaw postpones, and lack of gas wind is gradually mixed into the both sides of the thick coal culm air-flow of undershoot, avoids lower temperature
Lack of gas wind directly washes away high temperature thick coal culm air-flow, and the after-flame of coal dust can be greatly improved, the stability of coal dust firing in boiler
Also it is enhanced.Especially, when boiler is in underrun, stove inner section thermic load and volume heat load reduce, pot
The stability of stove burning is inherently poor, if the lack of gas wind of lower temperature still directly washes away high temperature thick coal culm air-flow, certainly will aggravate
The unstability of burning in stove, at this time, has more highlighted steady combustion when biasing lack of gas wind run boiler at low load and has acted on.
2nd, the W flame boiler that lack of gas windage yaw of the present invention is put can further reduce boiler NOxDischarge.
Lack of gas wind after biasing is gradually mixed into from the both sides of the thick coal culm air-flow of undershoot, between lack of gas wind and thick coal culm air-flow
Mixing be a process progressively mixed, to thick coal culm air-flow under be incident upon certain depth after, lack of gas wind just and thick coal culm air-flow
Mixing is complete, changes the mode that original lack of gas wind is mixed into thick coal culm air-flow too early, extends the thick coal culm air-flow of undershoot poor
The time burnt in oxygen atmosphere, lack of gas windage yaw, which is put, inhibits NOxGeneration, and then ensure ecological environment from NOxPollution.
Brief description of the drawings
Fig. 1 is overall structure front view of the present invention, and Fig. 2 is that lack of gas ajutage 3, lack of gas wind branch pipe 4, classification air hose 5 are arranged
In boiler front water wall 9 or the schematic diagram being arranged on boiler rear water wall 10.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1-Fig. 2, a kind of lack of gas windage yaw described in present embodiment is put
W flame boiler, it include upper furnace body 1, lower furnace body 2, preceding chimney arch 7, rear chimney arch 8,2N lack of gas ajutage 3,4N lack of gas wind
Branch pipe 4,2N classification air hose 5,2N vortex burner 6, upper furnace body 1, lower furnace body 2, preceding chimney arch 7 and rear chimney arch 8 are formed
Burner hearth, before N number of vortex burner 6 is arranged on chimney arch 7, and N number of vortex burner 6 is arranged in linear type, N number of
Vortex burner 6 is arranged on rear chimney arch 8, and N number of vortex burner 6 is arranged in linear type, and on preceding chimney arch 7
Each vortex burner 6 be oppositely arranged respectively with a vortex burner 6 on rear chimney arch 8, the air-supply of N number of lack of gas
Pipe 3 is arranged on boiler front water wall 9, and the lower section of each lack of gas ajutage 3 is correspondingly provided with one on boiler front water wall 9
Air hose 5 is classified, and the bottom for being classified air hose 5 is in tilted layout on boiler front water wall 9, N number of lack of gas ajutage 3 is arranged on pot
On stove rear water wall 10, the lower section of each lack of gas ajutage 3 is correspondingly provided with a classification air hose on boiler rear water wall 10
5, and the bottom for being classified air hose 5 is in tilted layout on boiler rear water wall 10, the top of each lack of gas ajutage 3 and a rotation
The sealing connection of flow coal-powder combustor 6, the bottom both sides of each lack of gas ajutage 3 are arranged with two lack of gas wind branch pipes 4, and two weary
Gas wind branch pipe 4 is obliquely installed, and the bottom of lack of gas ajutage 3 is connected with the end sealing of two lack of gas wind branch pipes 4, positioned at pot
Two lack of gas wind branch pipes 4 of 3 bottom of lack of gas ajutage are connected with boiler front water wall 9 on stove front water wall 9, positioned at boiler
Two lack of gas wind branch pipes 4 of 3 bottom of lack of gas ajutage are connected with boiler rear water wall 10 on rear water wall 10.
Embodiment two：Illustrate present embodiment with reference to Fig. 1-Fig. 2, a kind of lack of gas windage yaw described in present embodiment is put
W flame boiler, formed by the center line and horizontal plane of the lack of gas wind branch pipe 4 each on the boiler front water wall 9
Angle is α, and the center line of each lack of gas wind branch pipe 4 and horizontal plane angulation are β on boiler rear water wall 10,
The numerical value of α is equal with the numerical value of β, and the value range of α is 20 ° -30 °, other compositions and connection relation and embodiment one
It is identical.
Embodiment three：Illustrate present embodiment with reference to Fig. 1-Fig. 2, a kind of lack of gas windage yaw described in present embodiment is put
W flame boiler, the distance of bottom to preceding 7 bottom of chimney arch of each lack of gas wind branch pipe 4 is L on boiler front water wall 91, pot
The distance of bottom to rear 8 bottom of chimney arch of each lack of gas wind branch pipe 4 is L on stove rear water wall 102,L2Numerical value and L1Number
It is worth equal, and L1Value range be 2500mm-3000mm, it is other composition and connection relation it is identical with embodiment two.
Embodiment four：Illustrate present embodiment with reference to Fig. 1-Fig. 2, a kind of lack of gas windage yaw described in present embodiment is put
W flame boiler, the cross-sectional area of each lack of gas ajutage 3 installs two lack of gas wind branch with 3 bottom of lack of gas ajutage
4 cross-sectional area of pipe and equal, other compositions and connection relation are identical with embodiment one.
Operation principle
The First air thick coal culm air-flow of arch forward spin flow burner is constantly mixed into Secondary Air during undershoot, dense after catching fire
Breeze airflow is after downlink certain depth, and the lack of gas wind after biasing is gradually mixed into from the both sides of the thick coal culm air-flow of undershoot, lack of gas
Mixing between wind and thick coal culm air-flow is a process progressively mixed, to thick coal culm air-flow under be incident upon certain depth after, it is weary
Gas wind is just and the mixing of thick coal culm air-flow is complete.Lack of gas windage yaw postpones, and avoiding the lack of gas wind of lower temperature, directly to wash away high temperature dense
Breeze airflow, the after-flame of coal dust can be greatly improved, and the stability of coal dust firing is also enhanced in boiler.Lack of gas windage yaw is put
Afterwards, the time that the thick coal culm air-flow of undershoot burns in oxygen-lean atmosphere is extended, lack of gas windage yaw, which is put, inhibits NOxGeneration.
Embodiment
This example is to carry out in-site measurement and hot numerical simulation to a 300MW W flames boiler, borrows actual measurement
The contrast of value and numerical simulation proves the reliability of analog result, before lack of gas windage yaw is put, each lack of gas wind on front-back wall water-cooling wall
Arrangement, the NO of boiler are corresponded in vertical direction with encircleing upper burnerxThe in-site measurement value and numerical simulation of discharge capacity
Respectively 1300mg/m3And 1327mg/m3, NOxThe numerical simulation error of discharge capacity is 2.1%, and unburned combustible in fly ash scene is surveyed
Value and numerical simulation are respectively 11.7% and 12.1%, this shows that the confidence level of the result of numerical simulation is higher.Use this instead
After the combustion method that a kind of lack of gas windage yaw in invention is put, NO that numerical simulation is drawnxDischarge capacity is reduced to 912mg/m3, fly
Ash is flammable, and content is 9.5%, this absolutely proves that the burning arrangement that a kind of lack of gas windage yaw provided by the invention is put can significantly drop
Low NOxDischarge and unburned combustible in fly ash.
Claims (4)
- A kind of 1. W flame boiler that lack of gas windage yaw is put, it is characterised in that：It includes upper furnace body (1), lower furnace body (2), preceding chimney arch (7), rear chimney arch (8), 2N lack of gas ajutage (3), 4N lack of gas wind branch pipe (4), 2N classification air hose (5), 2N eddy flow coal Powder burner (6), upper furnace body (1), lower furnace body (2), preceding chimney arch (7) and rear chimney arch (8) form burner hearth, N number of spiral-flow powdered coal burning Device (6) is arranged on preceding chimney arch (7), and N number of vortex burner (6) is arranged on rear chimney arch (8), and on preceding chimney arch (7) Each vortex burner (6) is oppositely arranged with a vortex burner (6) on rear chimney arch (8) respectively, N number of lack of gas Ajutage (3) is arranged on boiler front water wall (9), the lower section of each lack of gas ajutage (3) on boiler front water wall (9) A classification air hose (5) is correspondingly provided with, and the bottom for being classified air hose (5) is in tilted layout on boiler front water wall (9), it is N number of Lack of gas ajutage (3) is arranged on boiler rear water wall (10), each lack of gas ajutage (3) on boiler rear water wall (10) Lower section be correspondingly provided with one classification air hose (5), and be classified air hose (5) bottom be in tilted layout in boiler rear water wall (10) On, the top of each lack of gas ajutage (3) is connected with vortex burner (6) sealing, each lack of gas ajutage (3) Bottom both sides are arranged with two lack of gas wind branch pipes (4), and two lack of gas wind branch pipes (4) are obliquely installed, and lack of gas ajutage (3) Bottom connected with the end sealing of two lack of gas wind branch pipes (4), the lack of gas ajutage (3) on boiler front water wall (9) Two lack of gas wind branch pipes (4) of bottom connect with boiler front water wall (9), and lack of gas are sent on boiler rear water wall (10) Two lack of gas wind branch pipes (4) of air hose (3) bottom connect with boiler rear water wall (10).
- A kind of 2. W flame boiler that lack of gas windage yaw is put according to claim 1, it is characterised in that：It is described be arranged in boiler before The center line of each lack of gas wind branch pipe (4) and horizontal plane angulation are α on wall water-cooling wall (9), are arranged in wall water after boiler The center line of each lack of gas wind branch pipe (4) and horizontal plane angulation are β, the numerical value of α and the numerical value phase of β in cold wall (10) Value range Deng, α is 20 ° -30 °.
- A kind of 3. W flame boiler that lack of gas windage yaw is put according to claim 1, it is characterised in that：Boiler front water wall (9) The distance of bottom to preceding chimney arch (7) bottom of upper each lack of gas wind branch pipe (4) is L1, it is each weary on boiler rear water wall (10) The distance of the bottom of gas wind branch pipe (4) to rear chimney arch (8) bottom is L2,L2Numerical value and L1Numerical value it is equal, and L1Value model Enclose for 2500mm-3000mm.
- A kind of 4. W flame boiler that lack of gas windage yaw is put according to claim 1, it is characterised in that：Each lack of gas ajutage (3) Cross-sectional area with that lack of gas ajutage (3) bottom is arranged is two lack of gas wind branch pipe (4) cross-sectional areas and equal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610605676.2A CN106247322B (en) | 2016-07-28 | 2016-07-28 | The W flame boiler that a kind of lack of gas windage yaw is put |
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| CN201610605676.2A CN106247322B (en) | 2016-07-28 | 2016-07-28 | The W flame boiler that a kind of lack of gas windage yaw is put |
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| CN106247322A CN106247322A (en) | 2016-12-21 |
| CN106247322B true CN106247322B (en) | 2018-04-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606605B (en) * | 2017-09-12 | 2019-04-09 | 哈尔滨工业大学 | A kind of W flame boiler using flue gas recycled |
| CN107543151B (en) * | 2017-09-12 | 2019-06-11 | 哈尔滨工业大学 | A kind of W flame boiler for the flue gas recirculation system can be improved coal dust after-flame |
| 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 |
| CN109945164B (en) * | 2019-03-11 | 2019-11-05 | 哈尔滨工业大学 | A kind of W flame boiler preventing fluid field in furnace deflection using flue gas recycled |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01200106A (en) * | 1988-02-04 | 1989-08-11 | Babcock Hitachi Kk | Method and device of feeding combustion air |
| JPH0268403A (en) * | 1988-09-02 | 1990-03-07 | Babcock Hitachi Kk | Solid fuel burner |
| CN1707160A (en) * | 2005-05-23 | 2005-12-14 | 哈尔滨工业大学 | W-shape flame furnace with gradation coal burner |
| CN101368725A (en) * | 2008-09-27 | 2009-02-18 | 哈尔滨工业大学 | Stable combustion anti-slag gap type W-shaped flame boiler apparatus |
| CN101476719A (en) * | 2009-01-21 | 2009-07-08 | 哈尔滨工业大学 | Combustion device with thin and thick breeze airflow stagger arrangement used for W-shaped flame furnace |
| CN102297420A (en) * | 2011-08-15 | 2011-12-28 | 哈尔滨工业大学 | Ejecting staged combustion W-flame boiler with thin pulverized coal air flow drawn to bottom |
| CN102322631A (en) * | 2011-07-08 | 2012-01-18 | 贵州电力试验研究院 | Double-cyclone cylinder burner W-shaped flame boiler capable of stably burning pulverized coal |
| CN205014343U (en) * | 2015-10-12 | 2016-02-03 | 大唐华银株洲发电有限公司 | W flame boiler |
| CN105423294A (en) * | 2015-12-28 | 2016-03-23 | 哈尔滨工业大学 | Secondary air offset whirl pulverized coal burner for W flame boiler |
-
2016
- 2016-07-28 CN CN201610605676.2A patent/CN106247322B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01200106A (en) * | 1988-02-04 | 1989-08-11 | Babcock Hitachi Kk | Method and device of feeding combustion air |
| JPH0268403A (en) * | 1988-09-02 | 1990-03-07 | Babcock Hitachi Kk | Solid fuel burner |
| CN1707160A (en) * | 2005-05-23 | 2005-12-14 | 哈尔滨工业大学 | W-shape flame furnace with gradation coal burner |
| CN101368725A (en) * | 2008-09-27 | 2009-02-18 | 哈尔滨工业大学 | Stable combustion anti-slag gap type W-shaped flame boiler apparatus |
| CN101476719A (en) * | 2009-01-21 | 2009-07-08 | 哈尔滨工业大学 | Combustion device with thin and thick breeze airflow stagger arrangement used for W-shaped flame furnace |
| CN102322631A (en) * | 2011-07-08 | 2012-01-18 | 贵州电力试验研究院 | Double-cyclone cylinder burner W-shaped flame boiler capable of stably burning pulverized coal |
| CN102297420A (en) * | 2011-08-15 | 2011-12-28 | 哈尔滨工业大学 | Ejecting staged combustion W-flame boiler with thin pulverized coal air flow drawn to bottom |
| CN205014343U (en) * | 2015-10-12 | 2016-02-03 | 大唐华银株洲发电有限公司 | W flame boiler |
| CN105423294A (en) * | 2015-12-28 | 2016-03-23 | 哈尔滨工业大学 | Secondary air offset whirl pulverized coal burner for W flame boiler |
Non-Patent Citations (1)
| Title |
|---|
| Influence of vent air valve opening on combustion characteristics;Zhengqi Li等;《FUEL》;20070301;2457-2462 * |
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