CN106642084B - It is a kind of double that wind is adjusted to be vortexed by force melting burner - Google Patents
It is a kind of double that wind is adjusted to be vortexed by force melting burner Download PDFInfo
- Publication number
- CN106642084B CN106642084B CN201611121604.7A CN201611121604A CN106642084B CN 106642084 B CN106642084 B CN 106642084B CN 201611121604 A CN201611121604 A CN 201611121604A CN 106642084 B CN106642084 B CN 106642084B
- Authority
- CN
- China
- Prior art keywords
- air
- combustion
- wind
- force
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
- F23C7/004—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion using vanes
-
- 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
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
Abstract
It adjusts wind to be vortexed by force melting burner the present invention relates to a kind of double, is suitable for Industrial Boiler and station boiler, belongs to coal dust or biomass granular fuel combustor technology.Mainly it is made of the melt-combustion room (1) that is vortexed by force, double tune wind whirlwind generators (2).Strong vortex melt-combustion room (1) includes a wind inlet (3), secondary air inlet (4), slag-drip opening (5), gradual shrinkage coupling tube (6), cylindrical tube (7) and wind-supplying mouth (14).Double tune wind whirlwind generators (2) include inner second air pipe (8), outer second air pipe (9), inner second air swirl vane (10), outer second air swirl vane (11) and combustion product injection pipe (12).Its combustion product injection pipe (12) is connected with gradual shrinkage coupling tube (6), and inner second air swirl vane (10) are equipped between inner second air pipe (8) and combustion product injection pipe (12)；Outer second air pipe (9) is located on the outside of inner second air pipe (8), and installs outer second air swirl vane (11) between the two.The advantages of present invention passes through be overcome fuel in combustion clogging problems while reduce NOx discharge amount.
Description
Technical field
Wind are adjusted to be vortexed by force melting burner the present invention relates to a kind of double.
Background technique
1. the demand to the energy also gradually increases with rapid development of economy.Coal resources in China very abundant,
It is occupied an important position in energy resource structure.Meanwhile China's biomass resource also very abundant, and biomass is as a kind of New Energy
The zero-emission that carbon dioxide theoretically may be implemented in source has caused the extensive concern of Chinese and overseas scholars.Therefore, efficient and rational to get profit
It is of great significance with coal and biomass resource.
2. fuel can generate slagging, deposition in combustion since ignition temperature and fuel ash melting temperature are close
Risk.The reduction of its heat exchange efficiency is influenced when clinker is bonded in heat exchanger surface, and the alkali metal element in ash can also exchange heat pipe
Metal causes to corrode, and influences the service life of heat exchanger tube.
3. fuel generates NOx in combustion, be discharged into atmosphere when encountering hydrocarbon, in sunlight
Photochemical reaction occurs under the action of ultraviolet light, generating has irritating light blue smog, causes serious photochemical fog
Pollution.In addition, acid rain will be formed together by the sulfuric acid etc. that the nitric acid of NO_x formation is generated with oxysulfide.Environmental pollution
And the harm of human health is extremely serious.
4. inhibit furnace in NOx formed air staged combustion technology according in fuel in excess air coefficient α < 1
Under the conditions of burn, furnace outlet NOx discharge can be effectively reduced to design.It is divided to two sections to be sent into the air of burning, makes
Combustion process is divided into two regions: i.e. primary zone and burning-out zone.In primary zone (α < 1), fuel burns under anoxic conditions, burning
Speed and ignition temperature reduce, and the production quantity of heating power NOx reduces.Meanwhile nitrogenous intermediate product HCN, NH3 discharged in fuel bound nitrogen
Etc. can be reduced into N2, thus reduce the generation of NOx.In burning-out zone, fuel burns under excess oxygen.Some residual nitrogen
Compound oxidation is NOx, but since temperature is generally lower, NOx generation amount is also little.So under the conditions of Researched of Air Staging Combustion Burning Pulverized Coal
Total NOx generation amount is to reduce.But air staged combustion technology, since the combustion process at initial stage is suppressed, burner hearth goes out
Mouth flue-gas temperature increases and incomplete combustion loss increases, and is especially easier to occur when furnace height is smaller.If water-cooling wall
Reductant is nearby generated, high temperature corrosion will occur in water cooling wall surface.
5. MILD combustion technology is the New combustion technique for being burned educational circles between nearly 20 years and proposing.It is fired in MILD
Under burning mode, high temperature gases recirculating carries out a degree of dilution to fuel and oxygen, and combustion reaction is diffused into burner hearth wider
General space, ignition temperature peak value are suppressed, and thermal NO x production quantity is caused to substantially reduce.Meanwhile high temperature gases recirculating meeting again
Reactant is preheated, fuel self-ignition point or more is reached, fuel is can guarantee still under hypoxic atmosphere and stablizes burning, this
MILD combustion technology is set to be suitable for inferior fuel.
Summary of the invention
The thought that space stage burning and MILD burning are combined in the way of eddy combustion and slag tap, for fuel
(biological particles, biomass powder and coal dust) in combustion clogging problems and NOx control aspect the problem of, propose
It is a kind of double that wind is adjusted to be vortexed by force melting burner, to overcome clogging problems in combustion process and reduce NOx emission.
The technical solution adopted by the present invention is as follows:
A kind of double that wind is adjusted to be vortexed by force melting burner, the burner is by the melt-combustion room (1) that is vortexed by force, double tunes wind eddy flows hair
Generating apparatus (2) composition.Strong vortex melt-combustion room (1) includes, a wind inlet (3), secondary air inlet (4), slag-drip opening (5),
Gradual shrinkage coupling tube (6), wind-supplying mouth (14) and cylindrical tube (7).Double tune wind whirlwind generators (2) include, interior secondary
Air hose (8), outer second air pipe (9), inner second air swirl vane (10), outer second air swirl vane (11) and combustion product spray
Penetrate pipe (12).Wherein, combustion product injection pipe (12) is connected with gradual shrinkage coupling tube (6), inner second air pipe (8) and combustion product
Inner second air swirl vane (10) are installed between injection pipe (12)；Outer second air pipe (9) is located on the outside of inner second air pipe (8),
And outer second air swirl vane (11) are installed between the two.
To solve the problems, such as slagging and high NOx emission in combustion process, double application methods for adjusting wind vortex melting burner by force
Are as follows: 1. by air preheat to 600 DEG C or more, it is strongly mixed that fuel and Secondary Air high temperature air are carry by First air high temperature gas flow
It burns under conditions of excess air coefficient α is 0.6 ~ 0.9 after conjunction, forms so-called richness in strong vortex melt-combustion room (1)
Fuel region, lime-ash are discharged in liquid form by slag-drip opening (5)；2. the imperfect combustion combustion in strong vortex melt-combustion room (1)
Material sprays into burner hearth, surplus air needed for reaching completely burned and furnace by combustion product injection pipe (12) with the flue gas generated
Thorax tail flue gas is sent into burner hearth by inner second air pipe (8) and outer second air pipe (9), after three is sufficiently mixed in burner hearth,
Excess air coefficient α is completely burned under conditions of 1.05 ~ 1.2.Controlling this pair tune wind, vortex melting burner was being run by force
Excess air factor α is 1.05 ~ 1.1 in journey.
The beneficial effects of the present invention are: enhance combustion by the way of vortex flow in the strong vortex melt-combustion room (1)
The mixing of material and air, and theoretical temperature combustion is improved by way of air preheat, it maintains in strong vortex melt-combustion room (1)
Lime-ash is discharged in liquid form through slag-drip opening (5) more than ash fusion point temperature in temperature, and then overcomes in combustion process
Clogging problems.Meanwhile fuel burns under anoxic conditions, the generation of NOx is inhibited by very big.In strong vortex melt-combustion room
(1) what is generated in adjusts wind whirlwind generator (2) and air and furnace by double containing imperfect combustion fuel and high-temperature flue gas
Thorax tail flue gas is sufficiently mixed with cyclonic form, reduces ignition temperature, increases conversion zone, by while fuel after-flame into
One step inhibits the generation of thermal NO x.
Detailed description of the invention:
Fig. 1 is double structural schematic diagram for adjusting wind vortex melting burner by force, and Fig. 2 is the side view of strong vortex melt-combustion room
Figure.
Appended drawing reference: the last 1 vortex melt-combustion room, 2 pairs of tune wind whirlwind generators, 3 wind inlets, 4 Secondary Airs into
Mouth, 5 slag-drip openings, 6 gradual shrinkage coupling tubes, 7 cylindrical tubes, 8 inner second air pipes, 9 outer second air pipes, 10 inner second air eddy flow leaves
Piece, 11 outer second air swirl vanes, 12 combustion product injection pipes, 13 burner hearths, 14 wind-supplying mouths.
Specific embodiment:
The embodiment of the present invention is illustrated in conjunction with attached drawing.
Propose it is a kind of double adjust wind to be vortexed by force melting burner, the burner is by the melt-combustion room (1) that is vortexed by force, double tune wind
Whirlwind generator (2) composition.Strong vortex melt-combustion room (1) includes a wind inlet (3), secondary air inlet (4), deslagging
Mouth (5), gradual shrinkage coupling tube (6), wind-supplying mouth (14) and cylindrical tube (7).Double tune wind whirlwind generators (2) include,
Inner second air pipe (8), outer second air pipe (9), inner second air swirl vane (10), outer second air swirl vane (11) and burning
Product injection pipe (12).Its combustion product injection pipe (12) is connected with gradual shrinkage coupling tube (6), inner second air pipe (8) and burning
Inner second air swirl vane (10) are installed between product injection pipe (12)；Outer second air pipe (9) is located at inner second air pipe (8) outside
Side, and outer second air swirl vane (11) are installed between the two.
When by air preheat to 600 DEG C or more, First air (accounts for about into total air in strong vortex melt-combustion room (1)
The 25% of amount) it carries fuel and is entered in strong vortex melt-combustion room (1) by wind inlet (3), Secondary Air (accounts for about into strong
The 75% of total air in vortex melt-combustion room (1)) entered in strong vortex melt-combustion room (1) by secondary air inlet (4), by force
It burns under conditions of excess air coefficient α is 0.6 ~ 0.9 after strong mixing.Tail portion to increase in melt-combustion cylinder is vortexed,
Part preheated air can be by entering in wind-supplying mouth (14).Since air preheat is to 600 DEG C or more, theory can be greatly improved
Ignition temperature, in operational process, temperature can reach 1500 DEG C or more in strong vortex melt-combustion room (1), and lime-ash is through slag-drip opening (5)
It is discharged in liquid form.Flue gas containing combustible component successively passes through gradual shrinkage coupling tube (6) and combustion product injection pipe (12)
Into burner hearth (13).
The surplus air and burner hearth tail flue gas reacted with combustible component in flue gas is by inner second air pipe (8) and outer secondary
Air hose (9) enters, by inner second air swirl vane (10) and outer second air swirl vane (11) and in strong vortex melt-combustion
The flue gas generated in room (1) in freeze profile at strong eddy airstream, by cigarette under conditions of excess air factor α is 1.01 ~ 1.2
Combustible component reacts completely in gas.This pair adjust wind by force vortex melting burner in the process of running excess air factor α be 1.05 ~
1.1。
Claims (3)
- The melting burner 1. a kind of double tune wind are vortexed by force, by the melt-combustion room (1) that is vortexed by force, double tune wind whirlwind generators (2) Composition；Double application method for adjusting wind vortex melting burner by force are as follows: 1. by air preheat to 600 DEG C or more, by First air High temperature gas flow carries after fuel mixes strongly with Secondary Air high temperature air under conditions of excess air coefficient α is 0.6 ~ 0.9 Burning, forms so-called fuel-rich regions in strong vortex melt-combustion room (1), and lime-ash is discharged in liquid form by slag-drip opening (5)； 2. the flue gas of imperfect combustion fuel and generation is sprayed by combustion product injection pipe (12) in strong vortex melt-combustion room (1) Enter burner hearth, surplus air needed for reaching completely burned and burner hearth tail flue gas pass through inner second air pipe (8) and outer second air It manages (9) and is sent into burner hearth, after three is sufficiently mixed in burner hearth, fired completely under conditions of excess air coefficient α is 1.05 ~ 1.2 It burns；Controlling this pair tune wind, excess air factor α is 1.05 ~ 1.1 to vortex melting burner in the process of running by force；The strong vortex melt-combustion room (1) includes, a wind inlet (3), secondary air inlet (4), slag-drip opening (5), tapered Type coupling tube (6) and cylindrical tube (7)；Double tune wind whirlwind generators (2) include inner second air pipe (8), outer second air Manage (9), inner second air swirl vane (10), outer second air swirl vane (11) and combustion product injection pipe (12)；The combustion product injection pipe (12) is connected with the gradual shrinkage coupling tube (6) in strong vortex melt-combustion room (1), and interior two Secondary air hose (8) is located on the outside of combustion product injection pipe (12), installs between inner second air pipe (8) and combustion product injection pipe (12) There are inner second air swirl vane (10)；Outer second air pipe (9) is located on the outside of inner second air pipe (8), and installation outer two between the two Secondary wind swirl vane (11).
- The melting burner 2. double tune wind according to claim 1 are vortexed by force, it is characterised in that: the strong vortex melts combustion Burning room (1) is horizontal type structure or vertical structure or incline structure form.
- The melting burner 3. double tune wind according to claim 1 are vortexed by force, it is characterised in that: double tune wind are vortexed by force Fuel used in melting burner is coal dust or biomass powder or biological substance shaped granule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611121604.7A CN106642084B (en) | 2016-12-08 | 2016-12-08 | It is a kind of double that wind is adjusted to be vortexed by force melting burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611121604.7A CN106642084B (en) | 2016-12-08 | 2016-12-08 | It is a kind of double that wind is adjusted to be vortexed by force melting burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106642084A CN106642084A (en) | 2017-05-10 |
| CN106642084B true CN106642084B (en) | 2019-07-26 |
Family
ID=58819727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611121604.7A Active CN106642084B (en) | 2016-12-08 | 2016-12-08 | It is a kind of double that wind is adjusted to be vortexed by force melting burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106642084B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212370U (en) * | 1987-10-16 | 1988-08-10 | 南京工学院 | Pre-burning burner for anthracite duff |
| JPH0237201A (en) * | 1988-07-27 | 1990-02-07 | Kawasaki Heavy Ind Ltd | Cyclone coal burning equipment with precombustor |
| JPH0240404A (en) * | 1988-07-29 | 1990-02-09 | Kawasaki Heavy Ind Ltd | Cyclone coal burner |
| CN2229036Y (en) * | 1995-06-28 | 1996-06-12 | 北京科能达机电新技术公司 | Small burner |
| CN101324334A (en) * | 2008-07-28 | 2008-12-17 | 上海题桥纺织染纱有限公司 | Low NOx liquid state slag-off double-eddy flow coal-powder combustor |
| CN102353049A (en) * | 2011-08-10 | 2012-02-15 | 深圳东方锅炉控制有限公司 | Stable combustion device for pulverized coal ignition |
| CN202328211U (en) * | 2011-11-23 | 2012-07-11 | 陕西升基利科技有限公司 | Multi-element powder flow state slagging cyclone burner |
| CN102607018A (en) * | 2012-03-02 | 2012-07-25 | 中国计量学院 | Graded air-feed dual-swirled pulverized coal industrial furnace combustor |
| CN202902268U (en) * | 2012-01-04 | 2013-04-24 | 刘柏谦 | Multi-nozzle pulverized coal combustion device |
| CN103148477A (en) * | 2013-02-26 | 2013-06-12 | 李延新 | Powder-screwing-in type pulverized coal combustion machine |
| CN103727532A (en) * | 2013-12-25 | 2014-04-16 | 李延新 | Spiral feeding and central reverse flame type pulverized coal gasification combustion machine |
| CN104406161A (en) * | 2014-11-17 | 2015-03-11 | 北京联优创展科技有限公司 | Coal-fired boiler flue gas backflow and supplement burning device |
-
2016
- 2016-12-08 CN CN201611121604.7A patent/CN106642084B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212370U (en) * | 1987-10-16 | 1988-08-10 | 南京工学院 | Pre-burning burner for anthracite duff |
| JPH0237201A (en) * | 1988-07-27 | 1990-02-07 | Kawasaki Heavy Ind Ltd | Cyclone coal burning equipment with precombustor |
| JPH0240404A (en) * | 1988-07-29 | 1990-02-09 | Kawasaki Heavy Ind Ltd | Cyclone coal burner |
| CN2229036Y (en) * | 1995-06-28 | 1996-06-12 | 北京科能达机电新技术公司 | Small burner |
| CN101324334A (en) * | 2008-07-28 | 2008-12-17 | 上海题桥纺织染纱有限公司 | Low NOx liquid state slag-off double-eddy flow coal-powder combustor |
| CN102353049A (en) * | 2011-08-10 | 2012-02-15 | 深圳东方锅炉控制有限公司 | Stable combustion device for pulverized coal ignition |
| CN202328211U (en) * | 2011-11-23 | 2012-07-11 | 陕西升基利科技有限公司 | Multi-element powder flow state slagging cyclone burner |
| CN202902268U (en) * | 2012-01-04 | 2013-04-24 | 刘柏谦 | Multi-nozzle pulverized coal combustion device |
| CN102607018A (en) * | 2012-03-02 | 2012-07-25 | 中国计量学院 | Graded air-feed dual-swirled pulverized coal industrial furnace combustor |
| CN103148477A (en) * | 2013-02-26 | 2013-06-12 | 李延新 | Powder-screwing-in type pulverized coal combustion machine |
| CN103727532A (en) * | 2013-12-25 | 2014-04-16 | 李延新 | Spiral feeding and central reverse flame type pulverized coal gasification combustion machine |
| CN104406161A (en) * | 2014-11-17 | 2015-03-11 | 北京联优创展科技有限公司 | Coal-fired boiler flue gas backflow and supplement burning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106642084A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100394109C (en) | Enhancing SNCR-aided combustion with oxygen addition | |
| CN111450681B (en) | Denitration, desulfurization and dust removal integrated system for supercritical carbon dioxide coal-fired boiler | |
| CN102628589B (en) | High-temperature and low-NOX combustion method and device for pulverized coal | |
| CN108905590B (en) | Denitration system and method for low-nitrogen burner of power station boiler in cooperation with high-temperature ammonia injection | |
| CN206449681U (en) | A kind of air classification/part oxygen-enriched combusting station boiler NOxControl system | |
| CN105805729A (en) | Low NOx burning method and low NOx burning system | |
| CN105387453A (en) | Grate-fired furnace with smoke recycling and superfine coal dust reburning and burning technology of grate-fired furnace | |
| CN201496957U (en) | Cyclone pulverized coal burner | |
| CN104266217B (en) | A kind of grate furnace multipath denitrating system and method for denitration thereof | |
| CN208154470U (en) | A kind of remote burnout degree second level eddy flow wide regulating ratio low-NOx combustor | |
| CN109058980A (en) | It is a kind of to can be used for biomass or coal dust be across the low NO of Load RegulationxBurner | |
| CN102269402A (en) | Method and system for realizing NOx discharge reduction and stable combustion of power station boiler | |
| CN204042867U (en) | A kind of low-NO_x burner system | |
| CN209445351U (en) | A kind of low nitrogen coal burner of adjustable swirl blade | |
| CN105737140A (en) | Cyclone combustion apparatus, combustion device and combustion method | |
| CN109578994A (en) | A kind of flue gas recirculation and microfine coal classification gasification low NOx combustion system | |
| CN113339789A (en) | Coking-prevention pulverized coal burner with horseshoe-shaped turbulence teeth | |
| CN206145669U (en) | Swirling flow pulverized coal burner | |
| CN206130963U (en) | Low NOx combustor of high temperature flue gas backward flow pre -burning formula with SOFA | |
| CN208878272U (en) | A kind of denitrating system of station boiler low NO collaboration high temperature spray ammonia | |
| CN109931597B (en) | Fuel staged gasification and low NOXCombustion boiler | |
| CN106642084B (en) | It is a kind of double that wind is adjusted to be vortexed by force melting burner | |
| CN114893767B (en) | Mix ammonia cyclone burner with baffling structure | |
| CN208418701U (en) | A kind of low-NOx combustor for biomass and combustion of natural gas | |
| CN208418734U (en) | A kind of low-NOx combustor for natural gas and coal dust |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211116 Address after: 150000 Wanyou Tun, Wanyou village, Wanbao Town, Songbei District, Harbin City, Heilongjiang Province Patentee after: Heilongjiang helte biomass energy development Co., Ltd Address before: 150000 No. 92, xidazhi street, Nangang District, Harbin City, Heilongjiang Province Patentee before: Harbin Institute of Technology |