CN106090907A - The strong swirl flame diffusion burner of a kind of premix - Google Patents
The strong swirl flame diffusion burner of a kind of premix Download PDFInfo
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- CN106090907A CN106090907A CN201610409210.5A CN201610409210A CN106090907A CN 106090907 A CN106090907 A CN 106090907A CN 201610409210 A CN201610409210 A CN 201610409210A CN 106090907 A CN106090907 A CN 106090907A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14003—Special features of gas burners with more than one nozzle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14021—Premixing burners with swirling or vortices creating means for fuel or air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses the strong swirl flame diffusion burner of a kind of premix, use the structure design of center classification, by combustion box, air pipe line, fuel conduit, cyclone, pre-combustion grade airport, pre-combustion grade nozzle and main combustion stage nozzle are constituted；Air pipe line uses with combustion box import and is welded to connect, and is used for guiding air through turbulent burner, burns in entering combustion chamber；Fuel gas is fed separately into pre-combustion grade and main combustion stage nozzle by fuel conduit, wherein the fuel of 25% 40% is injected directly into combustion chamber after entering pre-combustion grade nozzle, blend with the pre-combustion grade air being directly entered combustion chamber by pre-combustion grade airport, be diffused burning；The structure of the premix strong swirl flame diffusion that the present invention uses, is conducive to expanding fired downstream area, increases heating region, thus realize the burner that usable floor area is less, it is possible to heating greater room scope, improve efficiency of combustion simultaneously, reduce the discharge of pollutant.
Description
Technical field
The present invention relates to turbulent burner, particularly to the strong swirl flame diffusion burner of one premix.
Background technology
Coal, oil, the burning of natural gas are the thermal power sources of each department of national economy, utilize this chemistry of burning
Reaction, the various burners obtaining heat energy from fuel are also widely used in various metal smelt, boiler sets
Industry and the civil areas such as standby and scientific experiment, in burner, the structure design of burner is to obtain good combustion effect
Principal element, which determines the flame distribution in the ignition performance of burner and flow field and Temperature Distribution, for burning dress
The safe operation put and economic benefit have very important effect.
The at present burner for boiler plant and the thermal source of large heat exchanger, mostly use turbulent burner this
Mechanism designs, this be due to its mixing being capable of efficient hardening fuel and air and high-temperature combustion product and unburned fuel under
Stream flow field in mixed process, and its formed recirculating zone be maximally efficient, can as stable incendiary source, so
The different field such as the burning of coal dust and fuel gas and gas turbine are widely used.
Now with many for the improvement of turbulent burner, mostly concentrate on to reduction NOxDischarge, and flame stabilization
Some researchs, when the bigger situation in the space needing combustion heating, the methods that the overwhelming majority uses just are to increase cyclone combustion
The quantity of burner, if it is possible to designing a kind of cyclone head can be able to make very big at the cyclone structure using reduced size
The temperature of surface area raises, then can simplify burner, reduces maintenance cost, improves operational efficiency.
Premixed combustion can improve efficiency of combustion, and the effective flame intensity strengthening locality, if lean premixed also may be used
To reduce NOxDischarge capacity, meanwhile, premixed combustion also can expand combustion reaction occur scope.
The design concept of center classifying cyclone then derives from the design of combustion chamber in aero-engine, the rotation of center classification
Stream device head, by changing local equivalent proportion, solves the ignition problem under the little operating mode of aero-engine and smolders when big operating mode
Problem, and characteristics of flame when it is changed under two kinds of operating modes is also beneficial to the stable burning of downstream flame, if but thinking
Expand combustion range downstream, when being allowed to for providing the lifting of wider flow field temperature, also tackle its structure and carry out one
Fixed improvement.
In sum, the present invention is based on practical implementation, has used for reference the design philosophy of center classifying cyclone, design
A kind of burner premixing the diffusion of strong swirl flame, after fuel gas and air sufficiently premix, passes through cyclone
Form strong eddy flow, recirculating zone can be formed and stablize flame, expand fired downstream area simultaneously, increase heating region, thus realize
The less burner of usable floor area, it is possible to heating greater room scope, improves efficiency of combustion simultaneously, reduces the row of pollutant
Put.
Content of the invention
The technical problem to be solved in the present invention is: little the lacking of, heating surface (area) (HS little for existing turbulent burner combustion range
Point, provides a kind of turbulent burner being provided that bigger heated perimeter, and the hydrocyclone structure of employing center classification gives full play to pre-
Combustion level for igniting and the advantage of flame stabilization, fuel gas and air premix after through cyclone, can be effective
Improve efficiency of combustion, reduce air pollution；The main combustion stage structure of center classifying cyclone is designed as strong cyclone structure, effectively increases
The subtended angle that big premix gas spread in downstream, increases combustion range, and main combustion stage premix gas is lighted effect by pre-combustion grade flame, same
When can efficiently solve main combustion stage ignition problem.
The technical solution adopted for the present invention to solve the technical problems: the strong swirl flame diffusion burner of a kind of premix, adopts
With the structure design of center classification, overall employing stainless steel material, obtaining heat by carrying out burning to gaseous fuel, it is main
Structure includes pre-combustion grade nozzle, cyclone, pre-combustion grade airport and main combustion stage nozzle, and combustion box, supply air
Air pipe line, the fuel conduit of supply fuel and electric spark igniter；Air pipe line by welding by way of and combustion box
It is attached, be used for guiding air through turbulent burner, burn in entering combustion chamber；Fuel is supplied by fuel conduit respectively
Enter pre-combustion grade and main combustion stage nozzle；The fuel gas accounting for total amount 25%-40% enters pre-combustion grade nozzle, is injected directly into burning
In room, in air pipe line, the air of 25%-40% is blended by pre-combustion grade airport and fuel, is diffused burning；?
Opening aperture on the tube wall of fuel conduit, main combustion stage nozzle is connected with fuel conduit by welding, and remaining fuel is through main combustion stage
Nozzle first premixes with the air in air pipe line, and the swirl vane on cyclone enters combustion chamber afterwards, carries out pre-
Mixed burning；The eddy flow that main combustion stage air-flow produces can form recirculating zone for stable flame, and simultaneously strong eddy flow can increase air-flow
The angle of flare in the flow field of downstream, expands combustible gas distribution area in a combustion chamber, may be implemented in and with cyclone diameter ratio be
Burn in the combustion chamber of 4-6 times；Electric spark igniter extend into pre-combustion grade downstream by pre-combustion grade airport and nearby flows
In Chang, electric spark igniter is lighted a fire after pre-combustion grade ignited fuel, is lighted the fuel of main combustion stage by pre-combustion grade flame transmission,
Realize the startup of burner.
Wherein, described cyclone material is stainless steel, and overall diameter is 116-124mm, and core is annular, internal diameter
For 25-29mm, external diameter is 65-75mm；Inner cylinder face is tapped for the connection with pre-combustion grade nozzle and fuel conduit；Cylindrical
Having the prismatic blade that 10-16 is individual, thickness is 0.8-1.5mm to be uniformly distributed circumferentially on cylinder, being used for forming strong eddy flow, it designs rotation
Fluxion is 0.8-1.0.
Wherein, described pre-combustion grade airport is positioned on the center anchor ring of cyclone, has 1-3 on center annular portion
The through hole that circle is uniformly distributed circumferentially, direction is consistent with air-flow direction is as the circulation passage of pre-combustion grade air, and it is effective
Area duty gas always flows the 25%-40% of effective area.
Wherein, described pre-combustion grade nozzle is one end open, the pipeline that one end is closed；The external diameter of open at one end is 25-
29mm, internal diameter is 17-21mm, tapped for being attached with cyclone outside it；1-3 is had on the end face of blind end
Diameter, at the direct perforation of 1-2mm, has individual circumferentially all distribution, the diameters of 10-16 little in the direct projection of 1-2mm on its face of cylinder
Hole, its opening direction is vertical with airflow direction.
Wherein, the material of described main combustion stage nozzle is stainless steel, is the L-type pipeline of one end open, and external diameter is 6-8mm,
Internal diameter is 2-4mm；Open at one end is connected with the aperture on fuel conduit；Have and airflow direction on the face of cylinder at blind end
2-3 vertical diameter is at the direct projection aperture of 1-2mm；The height of main combustion stage nozzle is 16-20mm so that outlet direct perforation is in footpath
It is directed at the middle part of swirler blades passage on position.
Wherein, the material of described fuel conduit is stainless steel, has 10-16 diameter at 2-in its upstream portion
The aperture of 4mm connects with main combustion stage nozzle, and position of opening need to make the blade of the cyclone of distance foremost of main combustion stage nozzle have 6-
10mm；Front end is tapped, can be connected with pre-combustion grade nozzle by cyclone.
Wherein, the material of described air pipe line is stainless steel, a diameter of 120-130mm, is slightly larger than cyclone diameter, leaf
Intercuspal space is 2-4mm, desirably prevents tempering, also allows for installing simultaneously.
Wherein, the ratio that described pre-combustion grade fuel accounts for total fuel is 25%-40%, and the effective area of pre-combustion grade flowing accounts for
The ratio of total flowing effective area is 25%-40%.
Wherein, the leading portion of described combustion chamber is the taper that drift angle is 150 °-170 °, is used for reducing the flowing that sudden expansion brings
Loss.
The operation principle of the present invention: burner is designed as pre-combustion grade and main combustion stage two by the thought utilizing center to be classified
Point, wherein the fuel of 25%-40% burns in pre-combustion grade downstream, and the fuel of 60%-75% is carried out in the downstream of main combustion stage
Burning, electric spark igniter then reaches pre-combustion grade downstream nearby by pre-combustion grade airport.The fuel of pre-combustion grade is by pre-combustion grade
Nozzle is injected directly in combustion chamber, and pre-combustion grade air enters in combustion chamber through pre-combustion grade airport, due to pre-combustion grade
Nozzle direction is vertical with air-flow direction, beneficially the quick blending of fuel and air, and blending is after entering combustion chamber
Just occur, so the oil-gas ratio of local, pre-combustion grade downstream is high, beneficially being smoothed out of pre-combustion grade ignition process, once pre-burning
Level is lighted a fire successfully, just may utilize the flame successful ignition main combustion stage of pre-combustion grade, thus realizes the burning in whole basin.Main combustion stage is fired
Material is ejected in air pipe line by main combustion stage nozzle and mixes with air, and mixed combustible gas entered cyclone blade and formed
Strong eddy flow, enters the combustion chamber of a diameter of turbulent burner diameter 4-6 times, forms expansion air-flow, is ignited by pre-combustion grade, carry out pre-
Mixed burning, it is achieved increase the purpose of combustion range in combustion chamber, the recirculating zone that simultaneously may also rely on the formation of strong eddy flow is stablized
Flame；The center hierarchy of fuel gas premix can be effectively reduced the discharge of pollutant；Main combustion stage blade and tube wall it
Between gap then can be effectively prevented main combustion stage and be tempered.
The present invention compared with prior art has the advantage that as follows:
(1) premix of the present invention strong swirl flame diffusion burner, main combustion stage is designed as strong eddy flow, can be effective in downstream
Form the bigger expansion flowing of subtended angle, expand the combustion range in cyclone downstream, increase heating surface (area) (HS.
(2) the strong swirl flame diffusion burner of premix of the present invention have employed the design philosophy of center classification, beneficially point
Fire, strong eddy flow can form recirculating zone, is conducive to stablizing of burning, adds fuel and sufficiently premix with air, be conducive to carrying
High burning efficiency, can also reduce the generation of pollutant simultaneously.
(3) version of the strong swirl flame diffusion burner of premix of the present invention is simple, and easy to assembly, form of nozzle is easy
In processing, be conducive to simplifying the overall structure of the device combustion parts such as boiler and storage heater, it is simple to operation and maintenance, applicable many
Plant gaseous fuel, there is very wide fuel autgmentability.
Brief description
Fig. 1 is a kind of structural representation premixing strong swirl flame diffusion burner of the present invention；
Fig. 2 is the integrally-built trimetric drawing of the strong swirl flame diffusion burner of one premix of the present invention；
Fig. 3 is the schematic diagram of the pre-combustion grade nozzle of the present invention；
Fig. 4 is the hydrocyclone structure schematic diagram of the present invention；
Fig. 5 is the main combustion stage nozzle arrangements schematic diagram of the present invention；
In figure: 1 is pre-combustion grade nozzle, 2 is cyclone, and 3 is pre-combustion grade airport, and 4 is main combustion stage nozzle, and 5 is combustion chamber
Casing, 6 is air pipe line, and 7 is fuel conduit, and 8 is electric spark igniter, and 9 is the first pad, and 10 is the second pad.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention is discussed in detail the present invention.
A kind of flame spread burner premixing strong eddy flow described in the present embodiment as shown in Figure 1, uses center classification
Design structure, overall employing stainless steel material, wherein combustor section includes: pre-combustion grade nozzle the 1st, cyclone the 2nd, pre-combustion grade air
Hole 3 and main combustion stage nozzle 4, and the 7th, the fuel conduit of supply fuel supply the air pipe line 6 of air, the electricity starting burner is fiery
Spark lighter 8 and the casing 5 of combustion chamber carrying out combustion reaction process.Fuel gas is fed to device by fuel conduit 7
In, a part of fuel is entered directly in combustion chamber and by the pre-combustion grade air of pre-combustion grade airport 3 by pre-combustion grade nozzle 1
It is diffused burning；Remaining fuel enters in air pipe line 6 by main combustion stage nozzle 4, first premixes with incoming air,
Blade through cyclone 2 afterwards, forms strong eddy flow in downstream, is diffused burning, and the recirculating zone that strong eddy flow is formed can realize
Flame stabilization, forms diffusive gas flow simultaneously, increases the scope that combustible gas can reach.The start-up course of burner i.e. ignition process
Being realized by electric spark igniter 8, igniter 8 produces high-temperature region and lights pre-combustion grade fuel, then relies on pre-combustion grade flame transmission point
The combustible gas of combustion main combustion stage, it is achieved the startup of whole device.
As it is shown in figure 1, fuel conduit 7 and pre-combustion grade nozzle 1 are all connected with cyclone 2 by screw thread, it is achieved combustion
The supply of material, seals equipped with the first pad 9 and the second pad 10 in junction, to prevent fuel from leaking；Fuel conduit 7
Upstream end has a 10-16 hole being uniformly distributed circumferentially at 2-4mm for the diameter, main combustion stage nozzle 4 by the form of welding with
Aperture connection on fuel conduit 7, the position of aperture circumference should make the center of main combustion stage nozzle 4 rough alignment blade path；
The igniting probe of electric spark igniter 8 passes through pre-combustion grade airport 3, reaches pre-combustion grade nozzle 1 downstream nearby；Air pipe line 6
Tube wall and the blade of cyclone 2 between there is tip clearance, it is simple to main combustion stage can also be effectively prevented while installation and send out
Raw tempering.
As in figure 2 it is shown, air pipe line 6 is attached by way of welding with combustion box 5, air is guided to enter combustion
Burn in room；The leading portion of combustion box 5 becomes drift angle the taper of 150 °-170 °, to reduce the loss that sudden expansion brings；This burner
Can realize heating the space of a diameter of burner diameter 4-5 times.
As it is shown on figure 3, pre-combustion grade nozzle 1 one end open connects with fuel conduit 7, other one section is machined with the little of direct projection
Hole；On end face, wherein there is 1-3, the diameter aperture at 1-2mm, be conducive to improving the local equivalent in pre-combustion grade center flow field
Ratio, has 1-2mm direct projection aperture vertical with airflow direction, a diameter of on cylindrical side, and 10-16 is circumferentially uniformly divided altogether
Cloth, fuel ejection is done transverse jet, can be accelerated the blending speed of air and fuel by aperture in atmosphere.
As shown in Figure 4, cyclone 2 is made up of annular section and the blade two parts at center；Blade is at center annular portion
External cylindrical surface on be uniformly distributed circumferentially 10-16, be prismatic blade, thickness is 0.8-1.5mm, and design swirling number is 0.8-
1.0；On the inner cylinder face of the annular section at center tapped for connecting；Pre-combustion grade airport 3 is positioned at the center of cyclone 2
Annular section, has 1-3 on the direction flowed along air and encloses the through hole being circumferentially all distributed, and this design is by air pipe line
Air divide into two parts, pre-combustion grade air and main combustion stage air, wherein pre-combustion grade air accounts for total 25%-40%, warp
Cross pre-combustion grade airport 3 and enter combustion chamber, so the 25%-of the effective area of the through hole also total effective area of duty flow of air
40%；The installation site of cyclone 2 depends on fuel conduit 7, and the exit end face of cyclone 2 and combustion chamber 6 import should be made to put down
Together.
As it is shown in figure 5, main combustion stage nozzle 4 is L-type, wherein one end open is for connecting with fuel conduit 7, opens for other one section
, diameter vertical with air-flow direction by 2-3 is used for spraying fuel at the direct projection aperture of 1-2mm, this transverse jet
Form contributes to the quick mixing of air and fuel；The height of nozzle should make to export the basic center being directed at blade path.
Claims (9)
1. one kind premixes strong swirl flame diffusion burner, it is characterised in that: use the structure design of center classification, overall employing
Stainless steel material, obtains heat by carrying out burning to gaseous fuel, and its primary structure includes pre-combustion grade nozzle (1), cyclone
(2), pre-combustion grade airport (3) and main combustion stage nozzle (4), and combustion box (5), the air pipe line (6) of supply air, confession
Answer fuel conduit (7) and the electric spark igniter (8) of fuel；Air pipe line (6) by welding by way of with combustion box (5)
It is attached, be used for guiding air through turbulent burner, burn in entering combustion chamber；Fuel is divided by fuel conduit (7)
Gong Ru pre-combustion grade nozzle (1) and main combustion stage nozzle (4)；The fuel gas accounting for total amount 25%-40% enters pre-combustion grade nozzle
(1), being injected directly in combustion chamber, in air pipe line (6), the air of 25%-40% is by pre-combustion grade airport (3) and combustion
Material blends, and is diffused burning；Opening aperture on the tube wall of fuel conduit (7), main combustion stage nozzle (4) is by welding and combustion
Material pipeline (7) connection, remaining fuel first premixes with the air in air pipe line (6) through main combustion stage nozzle (4), afterwards
Swirl vane on cyclone (2) enters combustion chamber, carries out premixed combustion；The eddy flow that main combustion stage air-flow produces can be formed
Recirculating zone is used for stablizing flame, and simultaneously strong eddy flow can increase the angle of flare in the flow field of downstream for the air-flow, expands combustible gas in combustion
Burn the distribution area in room, may be implemented in and burn in the combustion chamber for 4-6 times with cyclone diameter；Electric spark igniter
(8) being extend in the flow field nearby of pre-combustion grade downstream by pre-combustion grade airport (3), electric spark igniter (8) is lighted a fire pre-burning
After level ignited fuel, lighted the fuel of main combustion stage by pre-combustion grade flame transmission, it is achieved the startup of burner.
2. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described cyclone
(2) material is stainless steel, and overall diameter is 116-124mm, and core is annular, and internal diameter is 25-29mm, and external diameter is 65-
75mm；Inner cylinder face is tapped for the connection with pre-combustion grade nozzle (1) and fuel conduit (7)；There is 10-16 on external cylindrical surface
Individual, thickness is that the prismatic blade of 0.8-1.5mm is uniformly distributed circumferentially, and is used for forming strong eddy flow, and its design swirling number is 0.8-
1.0。
3. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described pre-combustion grade
Airport (3) is positioned on the center anchor ring of cyclone, center annular portion has 1-3 circle be uniformly distributed circumferentially, direction
The through hole consistent with air-flow direction is as the circulation passage of pre-combustion grade air, and its effective area duty gas always flows significant surface
Long-pending 25%-40%.
4. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described pre-combustion grade
Nozzle is (1) one end open, the pipeline that one end is closed；The external diameter of open at one end is 25-29mm, and internal diameter is 17-21mm, outside it
Tapped for being attached with cyclone (2)；The direct perforation at 1-2mm for 1-3 the diameter is had on the end face of blind end,
10-16 circumferentially all distributions, diameter is had at the direct projection aperture of 1-2mm, its opening direction and airflow direction on its face of cylinder
Vertically.
5. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described main combustion stage
The material of nozzle (4) is stainless steel, is the L-type pipeline of one end open, and external diameter is 6-8mm, and internal diameter is 2-4mm；Open at one end with
Aperture on fuel conduit (7) connects；2-3 the diameter vertical with airflow direction is had at 1-on the face of cylinder at blind end
The direct projection aperture of 2mm；The height of main combustion stage nozzle (4) is 16-20mm so that outlet direct perforation is directed at eddy flow in radial position
The middle part of device (2) blade path.
6. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described cartridge
The material on road (7) is stainless steel, has aperture and main combustion stage nozzle (4) at 2-4mm for 10-16 the diameter in its upstream portion
Connection, position of opening need to make the blade of distance cyclone (2) foremost of main combustion stage nozzle (4) have 6-10mm；Front end is tapped with spiral shell
Line, can be connected with pre-combustion grade nozzle (1) by cyclone (2).
7. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described air hose
The material on road (8) is stainless steel, a diameter of 120-130mm, is slightly larger than cyclone (2) diameter, and tip clearance is 2-4mm, favorably
In preventing tempering, also allow for installing simultaneously.
8. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described pre-combustion grade
The ratio that fuel accounts for total fuel is 25%-40%, and the ratio that the effective area of pre-combustion grade flowing accounts for total flowing effective area is
25%-40%.
9. the strong swirl flame diffusion burner of a kind of premix according to claim 1, it is characterised in that: described combustion chamber
Leading portion be the taper that drift angle is 150 °-170 °, in order to reduce the flow losses that sudden expansion brings.
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|---|---|---|---|
| CN201610409210.5A CN106090907B (en) | 2016-06-12 | 2016-06-12 | A kind of strong swirl flame diffusion burner of premix |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610409210.5A CN106090907B (en) | 2016-06-12 | 2016-06-12 | A kind of strong swirl flame diffusion burner of premix |
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| CN106090907B CN106090907B (en) | 2018-07-27 |
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| CN107023855A (en) * | 2017-05-25 | 2017-08-08 | 上海泛智能源装备有限公司 | A kind of gas turbine |
| CN107270285A (en) * | 2016-04-08 | 2017-10-20 | 安萨尔多能源瑞士股份公司 | Method and burner for burning fuel |
| CN107314399A (en) * | 2017-07-03 | 2017-11-03 | 上海泛智能源装备有限公司 | A kind of pre-mixing apparatus of gas turbine and combustion chamber |
| CN108758635A (en) * | 2018-07-06 | 2018-11-06 | 广东科达洁能股份有限公司 | A kind of kiln whirlwind sheet |
| CN109323279A (en) * | 2018-10-09 | 2019-02-12 | 岳阳远东节能设备有限公司 | Burner is directly heated in a kind of denitrating flue gas pipeline |
| CN110594733A (en) * | 2019-09-02 | 2019-12-20 | 杭州锅炉集团股份有限公司 | Converter gas burner with low NOx emission |
| CN113776084A (en) * | 2021-10-08 | 2021-12-10 | 浙江浙能技术研究院有限公司 | Integrated low-pollution combustion chamber nozzle structure and method |
| CN114110589A (en) * | 2020-08-31 | 2022-03-01 | 芜湖美的厨卫电器制造有限公司 | Nozzle, combustor and gas heater |
| CN114738796A (en) * | 2022-03-09 | 2022-07-12 | 西北工业大学 | Air atomizing nozzle with rotary oil pipe |
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| CN107270285B (en) * | 2016-04-08 | 2020-08-28 | 安萨尔多能源瑞士股份公司 | Method for burning fuel and combustion device |
| CN106949471B (en) * | 2017-04-19 | 2023-09-01 | 安德森热能科技（苏州）有限责任公司 | Low-emission cold flame multistage premix burner |
| CN106949471A (en) * | 2017-04-19 | 2017-07-14 | 安德森热能科技（苏州）有限责任公司 | A kind of multistage premix burner of low emission cool flame |
| CN107023855A (en) * | 2017-05-25 | 2017-08-08 | 上海泛智能源装备有限公司 | A kind of gas turbine |
| CN107314399A (en) * | 2017-07-03 | 2017-11-03 | 上海泛智能源装备有限公司 | A kind of pre-mixing apparatus of gas turbine and combustion chamber |
| CN108758635A (en) * | 2018-07-06 | 2018-11-06 | 广东科达洁能股份有限公司 | A kind of kiln whirlwind sheet |
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| CN109323279A (en) * | 2018-10-09 | 2019-02-12 | 岳阳远东节能设备有限公司 | Burner is directly heated in a kind of denitrating flue gas pipeline |
| CN110594733A (en) * | 2019-09-02 | 2019-12-20 | 杭州锅炉集团股份有限公司 | Converter gas burner with low NOx emission |
| CN114110589A (en) * | 2020-08-31 | 2022-03-01 | 芜湖美的厨卫电器制造有限公司 | Nozzle, combustor and gas heater |
| CN113776084A (en) * | 2021-10-08 | 2021-12-10 | 浙江浙能技术研究院有限公司 | Integrated low-pollution combustion chamber nozzle structure and method |
| CN114738796A (en) * | 2022-03-09 | 2022-07-12 | 西北工业大学 | Air atomizing nozzle with rotary oil pipe |
| CN114877371A (en) * | 2022-05-06 | 2022-08-09 | 南京航空航天大学 | Advanced combustion chamber with double stable flame mechanisms and combustion method thereof |
| CN114923171A (en) * | 2022-05-07 | 2022-08-19 | 重庆凯瑞伟柯斯环保科技有限公司 | Combustor and exhaust gas aftertreatment system |
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