CN110397915A - Fluidized-bed combustion boiler air circulation spray nozzle device - Google Patents
Fluidized-bed combustion boiler air circulation spray nozzle device Download PDFInfo
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- CN110397915A CN110397915A CN201910332329.0A CN201910332329A CN110397915A CN 110397915 A CN110397915 A CN 110397915A CN 201910332329 A CN201910332329 A CN 201910332329A CN 110397915 A CN110397915 A CN 110397915A
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- Prior art keywords
- air
- injection nozzle
- bed combustion
- nozzle
- air injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
-
- 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
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention is to be protected to the air injection nozzle of the fluid-bed combustion furnace of fluidized-bed combustion boiler supply air by nozzle guard material, the fluidized-bed combustion boiler air circulation spray nozzle device deformed due to can preventing the high temperature because generating in fluid-bed combustion furnace.The invention is characterized in that, the air supply pipe of air is supplied in the state of the fluid-bed combustion furnace connection of fluidized-bed combustion boiler and is arranged on air supply pipe (100), by the air of supply be ejected into fluid-bed combustion furnace (10) air injection nozzle and include be arranged under air injection nozzle (200) state, under the solid fuel to burn in fluid-bed combustion furnace (10) or the conflict for the flowing sand of heat transfer, protect the nozzle guard component (300) of air injection nozzle (200), while being inserted into the one end of air supply pipe (100) on air injection nozzle (200), form the air duct that can be flowed from the air that air supply pipe (100) are supplied, in order to which the air to flow in air duct (210) is ejected into outside, it forms and is penetrated into from air duct (210) External spray-hole (220).
Description
Technical field
The present invention relates to: pass through nozzle to the air injection nozzle of the fluid-bed combustion furnace of fluidized-bed combustion boiler supply air
Guard block and protected, the fluidized-bed combustion boiler air circulation deformed due to the high temperature because generating in fluid-bed combustion furnace can be prevented
Spray nozzle device.
Background technique
Nearest fluidized bed (Fluidized Bed) technology is stepped on the strong competitor of traditional differential coal combustion boiler
.Particle (coal, stone that fluidized-bed combustion boiler (Fluidized Bed boiler) is heated in combustion furnace by fuel combustion
Ash, ash etc.) flowing generate steam development pattern.By outstanding fuel tolerance, because can use a variety of inferior fuels
The advantages of (rudimentary coal, bioenergy, waste energy etc.) and including anthracitic rudimentary carbon, therefore, it is the domestic energy
Production and the best answer for utilizing technology.
Also, due to using the rudimentary coal of cheap import and castoff fluid fuel (Refuse Derived Fuel) etc. again
The raw energy, annual production of energy expense can be reduced to 60% or so, reduce the electric power energy expense as national economy basis,
It is considered as optimum utilization technology.
In addition, (heat transfer) is conveyed using high fever, and heat (heat capacity), uniform temperature distribution, height
Efficiency, lime stone (CaCO 3) burning in desulfurization (desulfurization) mode, because of 800 degree Celsius low operations below
The generation of temperature, nitrogen oxides (NOx) tails off, and does not need other desulfurization, takes off matter (denitrification) equipment, in order to
The discharge standard for keeping environmental pollutants, the reducing catalyst of required moisture desulphurization plant and selection in burning
(Selective Catalytic Reduction) engineering cost is without the concern for therefore in order to build total engineering cost valence of boiler
Lattice are cheap.
Here, the recapitulative structure for illustrating fluidized-bed combustion boiler: it is internal to be flowed husky (Sand) filling, fluidized bed is formed,
The flowing sand of fuel combustion passes out heat, has the fluid-bed combustion furnace (fluidized-bed of production steam energy
Combustor the cyclone that the combustion gas) generated in fluid-bed combustion furnace and the ash to disperse are classified and trapped
(cyclone) it is connected to fluid-bed combustion furnace, the particle of fluid-bed combustion furnace is returned to by the fuel particle of cyclone trapping
Circulator (loop seal) is connected to fluid-bed combustion furnace from dust separating arrangement, has below fluid-bed combustion furnace from outer
Most nozzles of the dispersion injection air of portion's supply.
The air sprayed in these nozzles can improve the performance of the effective fluidisation and fuel combustion of fluidized bed.
But according to the burning of castoff fluid fuel, fluidized bed combustion can generate 800~900 degree of temperature Celsius.By
In fluidized bed combustion, internal temperature be higher than be made of metal material, nozzle creep strength of the temperature field at 500~800 degree
(Creep Strength), thus there are nozzle variant or damage the problem of.I.e. the efficiency of boiler may reduce.
Background technique of the invention in Korean Patent Room publication the 10-2011-0079040th with
(2011.07.07) word discloses.
Summary of the invention
Subject to be solved by the invention
The invention solves project be, in the fluid-bed combustion furnace of fluidized-bed combustion boiler supply air air spray spray
Mouth prevents the fluidized-bed combustion boiler air circulation being deformed by the high temperature of fluid-bed combustion furnace by nozzle guard component protection
The offer of spray nozzle device.
The solution of project
Further include following steps: the fluidized-bed combustion boiler of the embodiment of the present invention is fluidized bed pot with air circulation spray nozzle device
The fluid-bed combustion furnace 10 of furnace is supplied the air supply pipe 100 of air and is arranged on air supply pipe 100 in the state of being connected to,
The air of supply is ejected into the air injection nozzle 200 of fluid-bed combustion furnace 10 and the shape of air injection nozzle 200 is set
Under state, in the solid fuel that fluid-bed combustion furnace 10 burns or in order to which under the husky conflict of the flowing of heat transfer, protection air sprays spray
The nozzle guard component 300 of mouth 200 and in order to which nozzle guard component 300 to be mounted on air injection nozzle 200, by bolt structure
At installing component 400 and air injection nozzle 200 and nozzle guard component 300 between, have excellent performance, the energy of fire resistance
Alleviate the buffer unit 500 of the buffer function of external impact, one end of air supply pipe 100 be inserted on air injection nozzle 200,
The air that the air duct 210 that the air supplied from air supply pipe 100 is formed there through flows from air duct 210 in order to
Outer jet, forms the spray-hole 220 with external perforation on air flue 210, external in order to install nozzle guard component 300
And the external installing port 230 in conjunction with installing component 400 is formd, external installing port 230 is made of tap, nozzle guard component
300 form hat to cover the state of air injection nozzle 200, at a high temperature of being generated in fluid-bed combustion furnace 10, in order to
Air injection nozzle 200 is protected, manufacture forms the pluggable insertion space of air injection nozzle 200 at chemical stoneware material
310, the external installing port 230 for the air injection nozzle 200 being inserted into from insertion space 310 exposes in outside, and it is empty to be formed in insertion
Between in 310 can connection exposed hole 320, the bolt as installing component 400 is integrated to external installing port by exposed hole 320
On 230 tap, while buffer unit 500 penetrates through center portion, air injection nozzle 200 and contact are in nozzle guard portion
The chemical stoneware cover of disk form on part 300 and, the outer periphery of air injection nozzle 200 and nozzle guard component 300 it is interior
The tubulose chemical stoneware tube body of peripheral contact is feature.
Also, according to another embodiment of the present invention: fluidized-bed combustion boiler with air circulation spray nozzle device is flowed by connection
In the state of the fluid-bed combustion furnace 10 of fluidized bed boiler, 100 He of air supply pipe of air is provided, in air supply pipe 100
The air of supply is ejected into 200 He of air injection nozzle of fluid-bed combustion furnace 10, the shape installed on air injection nozzle 200
Air injection nozzle 200 is protected in the husky conflict of the flowing of state, the solid fuel to burn in fluid-bed combustion furnace 10 or heat transfer
Nozzle guard component 300, air injection nozzle 200 be inserted into air supply pipe 100 one end while, formed air supply pipe
The air duct 210 that can flow of air of 100 supplies, in order to which the air that will flow in air duct 210 is to outer jet, from sky
Gas channel 210 extends through side, forms spray-hole 220, air supply pipe 100 from one in the lower part of air injection nozzle 200
End penetrates into the convection holes 101 that side forms air circulation, is inserted into the air duct of air nozzle.One end has left sky
The inner face of gas track, convection holes 101 are on air duct 210, and the spray-hole 220 of air injection nozzle 200 blocks, and air can not
Injection, the air injection nozzle 200 on fluid-bed combustion furnace 10 is the state of heating, due to supplying the air supply pipe of air
100 is lower than 200 temperature of air injection nozzle, produces the temperature difference of air, supplies air duct by air supply pipe 100
It is feature that air, which leads to convection holes 101 to re-move the convection current phenomenon of air supply pipe 100,.
In addition, according to another embodiment of the present invention, fluidized-bed combustion boiler is fluidized bed pot with air circulation spray nozzle device
The fluid-bed combustion furnace of furnace supplies 100 He of air supply pipe of air in the state of connection, is arranged in air supply pipe 100
On, the air of supply is injected in 200 He of air injection nozzle of fluid-bed combustion furnace, the state of air injection nozzle is set
Under, air injection nozzle is protected under the conflict between the flowing sand of the solid fuel or heat transfer to burn in fluid-bed combustion furnace 10
200 nozzle guard components 300, air supply pipe 100 inserts one end of the air duct 210 of air injection nozzle 200, from
One end penetrates into side, and the negotiable tap 111 of the air supplied to air injection nozzle 200 forms the outside of tap
It pipe 110 and is inserted into the state of exterior tube, is arranged to one end by the end of one end of exterior tube 110, including being supplied from outside
Air supply to the inner tube 120 of air injection nozzle 200, air injection nozzle 200 is inserted into labor air supply pipe 100
One end forms the air duct 210 of the passage of air of the supply of air supply pipe 100, for the sky that air duct 210 flows
Gas blowout is mapped to outside, and foring from the spray-hole 220 that air duct 210 penetrates into side is feature of the invention.
Worthy of expecting, the tap 111 of formation smaller than the spray-hole 220 of air injection nozzle 200 is feature.
Worthy of expecting, the bolt as installing component 400 is identical with the diameter of nozzle guard component 300 or forms major diameter
Head be feature of the invention.
The effect of invention
Advantage point of the invention is: the air injection nozzle that air is supplied into the fluid-bed combustion furnace of fluidized-bed combustion boiler is logical
It crosses nozzle guard component to be protected, prevents the high temperature deformation because generating in fluid-bed combustion furnace.
In addition, because air injection nozzle blocks, the case where air cannot be sprayed, the air supply pipe of the supply air of formation
The convection holes of side are connected to, can prevent air injection nozzle from overheating with convection current by convection holes air.
In addition, air supply pipe is made of inner tube and exterior tube, is blocked in air injection nozzle, air can not be sprayed
Situation can be discharged to the outside by the air that inner tube is supplied by exterior tube, it is therefore prevented that air injection nozzle overheat.
In addition, nozzle guard component is made by chemical stoneware material, in order to which the insertion of air injection nozzle is made into hat state,
Air injection nozzle can be protected at a high temperature of fluid-bed combustion furnace generates.
It is made of in addition, nozzle guard component is mounted on the installing component on air injection nozzle bolt, due to skull
Nozzle guard component has been lived, the damage of nozzle guard component in the conflict between the solid fuel because of whereabouts is prevented.
Detailed description of the invention
Fig. 1 present invention is can to see that the fluid-bed combustion furnace of fluidized-bed combustion boiler is applicable in the drawing of state.
The oblique view for the air circulation nozzle that Fig. 2 embodiment according to the present invention is seen.
Fig. 3 can see the oblique view of decomposing state of the invention.
Fig. 4 is the usage state diagram for the air supply pipe that embodiment according to the present invention is seen.
Fig. 5 is the use state cross-sectional view for the air supply pipe applied according to another embodiment of the present invention.
Specific embodiment
Hereinafter, being examined with reference to attachment drawing to the present invention.
Include the following steps: the diagram such as Fig. 1 to Fig. 5, according to another embodiment of the present invention, fluidized-bed combustion boiler is empty
Gas circulation nozzle device is connected in the state of fluid-bed combustion furnace 10 of fluidized-bed combustion boiler, supplies the air supply pipe of air
100 and 200 He of air injection nozzle that the air supplied on air supply pipe 100 will be set is ejected into fluid-bed combustion furnace 10
The state that air injection nozzle 200 covers protects air injection nozzle 200 at a high temperature of generating in fluid-bed combustion furnace 10
300 He of nozzle guard component, the installing component 400 nozzle guard component 300 being mounted on air injection nozzle 200.
Firstly, from fluidized-bed combustion boiler to fluid-bed combustion furnace 10 lower section, be provided with air injection nozzle 200, air spray
It penetrates on nozzle 200 and is connected to air jet system 20.At this moment, husky in order to heat flowing, in 10 combusting solids of fluid-bed combustion furnace
Under fuel state, because of the starting of air jet system 20, by air injection nozzle 200 by external air supply to fluidized bed
Combustion furnace 10.
Here, solid fuel includes industry rubbish or house refuse.
Such as Fig. 4 (a) of air supply pipe 100, one end of the aftermentioned air duct 210 from insertion air injection nozzle 200
Side is penetrated into, the negotiable convection holes 101 of air is formed and is made of tube body.Therefore, air is supplied by air supply pipe 100
It answers, fluid-bed combustion furnace 10 is ejected by air injection nozzle 200.
It is empty but such as Fig. 4 (b) because the solid fuel or flowing sand blasting perforation 220 that burn in fluid-bed combustion furnace 10 block
The case where gas can not spray, the air injection nozzle 200 on fluid-bed combustion furnace 10 are heated by 800 degree of temperature Celsius, are supplied
Answer the air supply pipe 100 of air because 200 temperature of air injection nozzle than heating is low, so temperature difference has occurred.Accordingly, real
Show from the air that air supply pipe 100 is supplied to air injection nozzle 200 and has backed within air supply by convection holes 101
The phenomenon that pipe 100.Therefore, the air and the unheated air of air supply pipe 100 that air injection nozzle 200 heats are according to convection current
Phenomenon recycles mutually, it is therefore prevented that air injection nozzle 200 overheats, and therefore, air injection nozzle 200 is in 800 degree of high temperature Celsius
Under prevented also from deformation.That is, because prevent air injection nozzle 200 deformation it is prevented that fluid-bed combustion furnace 10 low efficiency
Under.
It further include following steps: as Fig. 5 air supply pipe 100 is inserted into the air duct of aftermentioned air injector 200
210 one end penetrates into side from one end, the tap 111 for the air circulation supplied to air injection nozzle 200, the row of being formed
It the exterior tube 110 portalled and is inserted into the state of exterior tube, is arranged to one end by the end of one end of exterior tube 110, from outer
Inner tube 120 of the air supply of portion's supply to air injection nozzle 200.
Exterior tube 110 penetrates through fluid-bed combustion furnace 10, is inserted into one end of the air duct 210 of air injection nozzle 200,
Tap 111 is located on air duct 210.Herein, tap 111 is less than the spray-hole 220 of air injection nozzle 200.
Then, exterior tube 110 opens the other termination opposite with one end of tap 111 is formed.That is, passing through tap
After 111 air flow into, outside can be rejected to by the other termination of exterior tube 110.
Inner tube 120 is smaller than 110 diameter of exterior tube, can be plugged into exterior tube 100, in order to which one end is by tightening up a screw or welding
Exterior tube 110 is connected, one end forms flange form.
Therefore, the air supply of inner tube 120 is injected into air injection nozzle 200, passes through jet injection nozzle 200
Spray-hole 220 is ejected into fluid-bed combustion furnace 10.At this moment, bigger than tap 111 because of spray-hole 220, most air passes through
Spray-hole 220 sprays.In this way, can continuously spray by 220 air of spray-hole, continue to supply air to air injection nozzle 200,
The temperature of the high-temperature heating of air injection nozzle 200 can be minimized.
But because the spray-hole of air injection nozzle 200 220 blocks, the air supplied by inner tube 120 cannot pass through
, can be by exterior tube 110 if air injection nozzle 200 sprays, the tap 111 by exterior tube 110 is rejected to outside.
That is, air can be discharged from tap 111 to outside if spray-hole 220 is closed.
In this way, because air injection nozzle 200 blocks, if air cannot being supplied by inner tube 120,800 degree Celsius
Air injection nozzle 200 will deform under high temperature.But if air injection nozzle 200 blocks, it flow to tap 111
Air can be rejected to outside, one end supply of the sustainable internally pipe 120 of outside air by exterior tube 110, therefore can prevent
The deformation of air injection nozzle 200 at high temperature.That is, guaranteeing air injection because preventing the deformation of air injection nozzle 200
The long-time service of nozzle 200.Certainly, because preventing the deformation of air injection nozzle, the effect of fluid-bed combustion furnace 10 is also prevented
Rate is low.
Air injection nozzle 200 inserts one end of air supply pipe 100, forms the sky of the supply of air supply pipe 100
The air duct 210 that gas can penetrate through.Air in order to flow in air duct 210 forms logical from air to outer jet
Road 210 penetrates into external spray-hole 220.
There are the convection holes 101 or tap 111 of air supply pipe 100 above-mentioned on air duct 210.
Therefore, the air that air supply pipe 100 is supplied, is flowed by air duct 210, is ejected by spray-hole 220
In fluid-bed combustion furnace 10.At this moment, the case where spray-hole 220 is closed, the air that air duct 210 flows, can pass through exterior tube
110 convection holes 101 or tap 111 circulation.
Herein, spray-hole 220 can also be formed after air injection nozzle 200 is tilted to side and be penetrated through.Also, spray-hole
220 are made of plural number, can spray air to all directions.
Then, the outside of air injection nozzle 200 forms to install nozzle guard component 300 in conjunction with installing component
400 external installing port 230.External installing port 230 is made of tap or screw rod.
Nozzle guard component 300, in order to be combined into covering air injection nozzle 200 state, be made into hat, in order to
Air injection nozzle 200 is protected at a high temperature of generating in fluid-bed combustion furnace 10, is made by chemical stoneware material.In this way, by changing
Nozzle guard component 300 made of work ceramic material will not be deformed at high temperature, can cover protection air injection nozzle
200, the deformation of air injection nozzle 200 made of metal can be prevented.
Then, nozzle guard component 300 forms the pluggable insertion space 310 of air injection nozzle 200, empty to insertion
Between the external installing ports 230 of air injection nozzles 200 of 310 insertions formd to be exposed to outside in insertion space 310
The escape aperture 320 that can be connected to.
Also, nozzle guard component 300 is by being mounted on the mounting portion of the external installing port 230 of air injection nozzle 200
Part 400 is mounted on air injection nozzle 200.
Installing component 400 is made of or in conjunction with the bolt of screw by external installing port the tap of external installing port 230
The nut of 230 screw rod combination screw is constituted.Therefore, as the bolt of installing component 400 or nut with pressurized nozzles protection portion
The state of part 300, in conjunction with the external installing port 230 exposed by exposed hole 320, nozzle guard component 300 is mounted on air spray
The state penetrated on nozzle 200 is firmer.
Herein, it can be formed identical as the diameter of nozzle guard component 300 as the bolt of installing component 400 or compare nozzle
The big head of 300 diameter of guard block.Therefore, the skull as the bolt of installing component 400 lives nozzle guard component 300, prevents
Because of the solid fuel of whereabouts, nozzle guard component 300 is caused to damage.Then, head is in order to avoid falling in fluid-bed combustion furnace 10
Solid fuel or flowing it is husky, form hemisphere form.Accordingly, even if the solid fuel to fall is encountered on head, it can also avoid, disappear
Slow down and impacts.
In addition, there is the buffer unit for playing buffer function in the centre of air injection nozzle 200 and nozzle guard component 300
500.Buffer unit 500, has penetrated through middle section, includes air injection nozzle 200 and can be with face contact nozzle guard component
The inner periphery of the chemical stoneware pad of 300 disk form and the outer periphery of air injection nozzle 200 and nozzle guard component 300 can
With the chemical stoneware tube body of the tubular state of face contact.
Then, also prepared as the centre of the bolt of installing component 400 and nozzle guard component 300 as buffer unit
The chemical stoneware pad of 500 disk form.
Herein, since buffer unit 500 is made including chemical stoneware, fire resistance is outstanding, can withstand fluidisation
The high temperature of bed combustion furnace 10, can prevent the air injection nozzle 200 of metal material and the nozzle guard component of chemical stoneware material
300 collision also can be relieved external impact.
In this way, the present invention is to prevent from supplying the nozzle of air to the fluid-bed combustion furnace of fluidized-bed combustion boiler because of fluidized bed combustion
High temperature that furnace generates and deform, reduce the impact generated by the conflict of the solid fuel of whereabouts, fluidized-bed combustion boiler air
The widely used highly useful invention being applicable on circulation nozzle device.
Those skilled in the art, which should be appreciated that, is not changing technical thought of the invention or necessary spy
In the case where sign, it can be implemented by other concrete forms.It will thus be appreciated that the embodiment to sum up described is in all respects
It is not to limit for example formula.The scope of the present invention shown by scope of the claims rather than it is described illustrate, wanted by right
What the meaning and range and equivalent conception asked obtained have altered or variant should should be included within the scope of the present invention explanation.
Description of symbols
10: fluid-bed combustion furnace 20: air injection nozzle
100: air supply pipe 101: convection holes
110: exterior tube 111: tap
120: inner tube 200: air injection nozzle
210: air duct 220: spray-hole
230: external installing port 300: nozzle guard component
310: insertion space 320: exposed hole
400: installing component
Claims (5)
1. fluidized-bed combustion boiler fluid-bed combustion furnace (10) connection in the state of, supply air air supply pipe (100) and,
The air that setting is supplied on air supply pipe (100) is ejected into the air injection nozzle of fluid-bed combustion furnace (10)
(200) and,
It is arranged under air injection nozzle (200) state, the solid fuel that burns in fluid-bed combustion furnace (10) or be heat transfer
Flow under husky conflict, protect air injection nozzle (200) nozzle guard component (300) and,
In order to which nozzle guard component (300) is mounted on air injection nozzle (200), the installing component being made of bolt
(400) and,
Have between air injection nozzle (200) and nozzle guard component (300), the fire resistance for playing buffer function is outstanding
The buffer unit (500) of external impact can also be alleviated,
Air injection nozzle (200)
While one end insertion of air supply pipe (100), foring can be penetrated through from the air that air supply pipe (100) are supplied
Air duct (210),
In order to which the air to flow in air duct (210) is ejected into outside, external spray is penetrated into from air duct (210)
Perforation (220)
Outside has to install nozzle guard component (300), the external installing port (230) that installing component (400) can combine,
External installing port (230) is made of tap,
Nozzle guard component (300), in order to be combined into covering air injection nozzle (200) state, be made into hat, in order to
Air injection nozzle (200) are protected at a high temperature of generating in fluid-bed combustion furnace (10), are made by chemical stoneware material,
Air injection nozzle (200) pluggable insertion space (310) is formd,
It can be inserted into the external installing port (230) of the air injection nozzle (200) of insertion space (310), in order to allow outside to install
Mouth is leaked out in outside, is formd and is connected to escape aperture (320) with insertion space (310),
As the bolt of installing component (400), it is integrated on the tap as external installing port by exposed hole (320),
Buffer unit (500)
It, can be with the disc of face contact air injection nozzle (200) and nozzle guard component (300) while center portion penetrates through
The chemical stoneware pad of state and,
It further comprises, the pipe of the outer periphery of air injection nozzle (200) and the inner periphery of nozzle guard component (300) can be touched
The fluidized-bed combustion boiler that the chemical stoneware tube body of form is characterized air circulation ceramic nozzle device.
2. the fluid-bed combustion furnace (10) of fluidized-bed combustion boiler in the state of connection, supply air air supply pipe (100) and,
The air that setting is supplied on air supply pipe (100) is ejected into the air injection nozzle of fluid-bed combustion furnace (10)
(200) and,
Include being arranged under air injection nozzle (200) state, the solid fuel that burns in fluid-bed combustion furnace (10) or is
Under the husky conflict of the flowing of heat transfer, the nozzle guard component (300) of air injection nozzle (200) is protected,
Air injection nozzle (200)
While one end insertion of air supply pipe (100), foring can be penetrated through from the air that air supply pipe (100) are supplied
Air duct (210),
In order to which the air to flow in air duct (210) is ejected into outside, side is penetrated into from air duct (210), sky
Spray-hole (220) are formd below gas jet nozzle,
Air supply pipe (100) penetrates into side from one end, forms the convection holes (101) of air circulation, is arranged to be inserted in
State on the air duct (210) of air injection nozzle (200), one end are detached from from the inner periphery of air duct (210), convection current
Hole (101) is arranged on air duct (210), and the spray-hole (220) of air injection nozzle (200) blocks, and cannot spray air
If, the air injection nozzle (200) in fluid-bed combustion furnace (10) is the state of heating, because of the air supply of supply air
Pipe (100) is lower than air injection nozzle (200) temperature, produces the temperature difference of air, passes through the one of air supply pipe (100)
End leads to the air of air duct (210), passed through convection holes (101) re-move air supply pipe (100) convection current it is existing
As just will appear, this is the fluidized-bed combustion boiler air circulation ceramic nozzle device as feature.
3. the fluid-bed combustion furnace (10) of fluidized-bed combustion boiler in the state of connection, supply air air supply pipe (100) and,
The air that setting is supplied on air supply pipe (100) is ejected into the air injection nozzle of fluidized bed combustion furnace (10)
(200) and,
Include being arranged under air injection nozzle (200) state, the solid fuel that burns in fluidized bed combustion furnace (10) or is
Under the husky conflict of the flowing of heat transfer, the nozzle guard component (300) of air injection nozzle (200) is protected,
Air supply pipe (100)
It is arranged to be inserted in the state on one end of the air duct (210) of air injection nozzle (200), penetrates into side from one end
Side, the negotiable tap (111) of the air supplied to air injection nozzle (200), forms the exterior tube (110) of tap
With,
It is inserted in the state of exterior tube (110), is arranged to one end by the end of one end of exterior tube (110), what is supplied from outside
Air supply to air injection nozzle (200) inner tube (120),
Air injection nozzle (200)
While one end insertion of air supply pipe (100), foring can be penetrated through from the air that air supply pipe (100) are supplied
Air duct (210),
In order to which the air to flow in air duct (210) is ejected into outside, forms from air duct (210) and penetrate into side
Spray-hole (220), this is the fluidized-bed combustion boiler air circulation ceramic nozzle device as feature.
4. according to claim 3,
Tap (111) is smaller than air injection nozzle (200) spray-hole (220), this is the fluidized-bed combustion boiler use as feature
Air circulation ceramic nozzle device.
5. according to claim 1,
As the bolt of installing component (400), form identical as the diameter of nozzle guard component (300) or than nozzle guard portion
The big hat state of the diameter of part (300), this is the fluidized-bed combustion boiler air circulation ceramic nozzle device as feature.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180048059A KR101921254B1 (en) | 2018-04-25 | 2018-04-25 | Air Circulation Nozzle Device for Fluidized Bed Combustor |
| KR10-2018-0048059 | 2018-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110397915A true CN110397915A (en) | 2019-11-01 |
| CN110397915B CN110397915B (en) | 2020-11-06 |
Family
ID=64557702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910332329.0A Active CN110397915B (en) | 2018-04-25 | 2019-04-24 | Air circulation nozzle device for fluidized bed boiler |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101921254B1 (en) |
| CN (1) | CN110397915B (en) |
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| CN102588960A (en) * | 2012-03-02 | 2012-07-18 | 上海锅炉厂有限公司 | Fluidization blast cap used for preventing slag leakage |
| CN103423739A (en) * | 2013-07-30 | 2013-12-04 | 中国华能集团清洁能源技术研究院有限公司 | Abrasion proof slag-leakage resistant wind cap with combined core tube |
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| EP2522903A3 (en) * | 2011-05-10 | 2015-01-21 | RWE Power AG | Air nozzle for introducing a gas flow comprising an oxidation agent into a combustion chamber |
| KR101560715B1 (en) * | 2015-06-16 | 2015-10-16 | 지이큐솔루션 주식회사 | Air distribution-manifold for fluidzed bed boiler |
| CN106287684A (en) * | 2016-01-18 | 2017-01-04 | 无锡华光锅炉股份有限公司 | A kind of blast cap for CFBB |
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| CN2532367Y (en) * | 2002-03-19 | 2003-01-22 | 李志刚 | Wind cap for boiler |
| KR101847024B1 (en) * | 2017-09-19 | 2018-04-09 | 이보엠텍 주식회사 | Protective cover of air injection nozzle for fluidezed bed combustor |
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| CN201535501U (en) * | 2009-09-24 | 2010-07-28 | 长沙锅炉厂有限责任公司 | Air cap for air distribution system of biomass circulating fluidized bed boiler |
| CN101975396A (en) * | 2010-11-30 | 2011-02-16 | 哈尔滨哈锅锅炉工程技术有限公司 | Circulating fluidized bed boiler air hood |
| CN102563629A (en) * | 2010-12-15 | 2012-07-11 | 中国科学院工程热物理研究所 | Spiral-flow type built-in cylindrical blast cap |
| EP2522903A3 (en) * | 2011-05-10 | 2015-01-21 | RWE Power AG | Air nozzle for introducing a gas flow comprising an oxidation agent into a combustion chamber |
| CN102353044A (en) * | 2011-09-09 | 2012-02-15 | 北京君达能源投资有限公司 | Gas combustion-supporting device of recirculating fluidized bed and combustion control device of recirculating fluidized bed |
| CN102588960A (en) * | 2012-03-02 | 2012-07-18 | 上海锅炉厂有限公司 | Fluidization blast cap used for preventing slag leakage |
| CN203413618U (en) * | 2013-06-09 | 2014-01-29 | 东方电气集团东方锅炉股份有限公司 | Mushroom head type hood |
| CN103423739A (en) * | 2013-07-30 | 2013-12-04 | 中国华能集团清洁能源技术研究院有限公司 | Abrasion proof slag-leakage resistant wind cap with combined core tube |
| KR101560715B1 (en) * | 2015-06-16 | 2015-10-16 | 지이큐솔루션 주식회사 | Air distribution-manifold for fluidzed bed boiler |
| CN106287684A (en) * | 2016-01-18 | 2017-01-04 | 无锡华光锅炉股份有限公司 | A kind of blast cap for CFBB |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110397915B (en) | 2020-11-06 |
| KR101921254B1 (en) | 2018-11-22 |
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