CN106907709A - A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner - Google Patents
A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner Download PDFInfo
- Publication number
- CN106907709A CN106907709A CN201710101338.XA CN201710101338A CN106907709A CN 106907709 A CN106907709 A CN 106907709A CN 201710101338 A CN201710101338 A CN 201710101338A CN 106907709 A CN106907709 A CN 106907709A
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- China
- Prior art keywords
- ring blade
- nozzle
- inner ring
- blade
- outer ring
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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
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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
-
- 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
-
- 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
Abstract
The invention provides a kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner, by rotating middle cylinder or outer layer cylinder, adjust the relative position between the inner ring blade and outer ring blade of cyclone, you can realize the swirling number in adjustment flow field and the purpose of turbulence intensity.The nozzle operation wide ranges, can be adjusted flexibly the swirling number and turbulivity in flow field, and mixing effect is good, security is good, pollutant emission is low, fuel is applied widely, with good combustion stability.
Description
Technical field
The present invention relates to burner technical field, more particularly to a kind of swirling number and the adjustable nozzle of turbulivity, nozzle
Array and burner, it is particularly well-suited to the various industrial burners such as gas turbine, boiler, chemical furnace.
Background technology
Industrial production is such as smelted, petrochemical industry, pharmacy, papermaking and mining industry can produce a large amount of pernicious gases and low heat value gas
Body, these gases are directly discharged to meeting severe contamination environment in air, but also waste the energy.If by the burning of these gases
Utilize, not only reduce environmental pollution and energy saving.Current China problem of environmental pollution is extremely serious, the related cleaning combustion of development
Burning technology is very urgent.Additionally, aero-engine, generating gas turbine, warship marine gas turbine are also required for burner.Combustion
Burner manufacturer has developed various clean-burning technologies, such as poor premixed combustion technology, dilute phase premix and pre-evaporation technology, oil-poor straight
Spray technique etc., although these technologies can effectively reduce the discharge of pollutant, all suffers from the problem of combustion instability.
Swirling number and turbulivity are the important parameters of nozzle and burner, and it has a major impact to combustibility, different
Swirling number and turbulivity have direct relation with combustion stability, pollutant emission, needed to swirling number for different operating modes and
Turbulivity is adjusted, to improve combustibility.Thus, this area needs a kind of swirling number of exploitation and the adjustable combustion of turbulivity badly
Burner.
The content of the invention
(1) technical problem to be solved
In order to solve the above mentioned problem of prior art presence, the invention provides a kind of swirling number and the adjustable spray of turbulivity
Mouth, nozzle array and burner.
(2) technical scheme
The invention provides a kind of swirling number and the adjustable nozzle of turbulivity, including:The middle cylinder that is coaxially disposed and outer
Layer cylinder, cyclone is arranged between the middle cylinder and outer layer cylinder;The cyclone includes inner ring blade and outer ring leaf
Piece, the inner ring blade is fixed on the outer wall of middle cylinder, and the outer ring blade is fixed on outer layer cylinder inner wall, described interior
Circle blade and outer ring blade are used to adjust swirling number and turbulivity.
Preferably, the inner ring blade includes that, along multiple blades of middle cylinder circumferential array, the outer ring blade includes
Along the blade corresponding with inner ring blade quantity of outer layer cylinder circumferential array.
Preferably, the middle cylinder and/or outer layer cylinder can be rotated about the axis, the inner ring blade and outer ring blade it
Between relative position change therewith, swirling number and turbulivity are conditioned therewith.
Preferably, the side of the close outer ring blade of the inner ring blade has double wedge, and being close to for the outer ring blade is interior
The side for enclosing blade has concave tooth.
Preferably, the inner ring blade is divided into two sections along its length, and the middle cylinder correspondence is divided into two sections;Institute
State outer ring blade and be also divided into two sections along its length, the outer layer cylinder correspondence is divided into two sections.
Preferably, the inner ring blade and outer ring blade partly overlap in the direction of the width.
Preferably, one of the inner ring blade and outer ring blade are provided with turbulence columns, and another is provided with flow-disturbing hole.
Preferably, when the inner ring blade and outer ring blade are overlapped, the turbulence columns are mutually twisted with flow-disturbing hole.
Present invention also offers a kind of nozzle array, including any of the above-described nozzle.
Present invention also offers a kind of burner, including any of the above-described nozzle, or nozzle array.
(3) beneficial effect
From above-mentioned technical proposal as can be seen that swirling number of the invention and the adjustable nozzle of turbulivity, nozzle array and combustion
Burner has the advantages that:
By rotating middle cylinder or outer layer cylinder, the relative position between the inner ring blade and outer ring blade of cyclone is adjusted
Put, you can realize the swirling number in adjustment flow field and the purpose of turbulence intensity.When burning occurs to take off the trend of fire, stream can be increased
The swirling number and turbulence intensity of field, it is to avoid flame is blown out;When there is tempering trend, the swirling number and rapids in flow field can be reduced
Intensity of flow, prevents tempering, the nozzle operation wide ranges, the swirling number and rapids in flow field can be adjusted flexibly according to fired state
Mobility, mixing effect is good, security is good, pollutant emission is low, fuel is applied widely, with good combustion stability.
Brief description of the drawings
Fig. 1 is the structural representation of first embodiment of the invention nozzle;
The schematic diagram that Fig. 2 is mutually twisted for the inner ring blade and outer ring blade of cyclone;
Fig. 3 staggers the schematic diagram of certain angle for the inner ring blade and outer ring blade of cyclone;
Fig. 4 is the schematic diagram that nozzle is in diffusion combustion mode;
Fig. 5 is the structural representation of second embodiment of the invention nozzle;
Fig. 6 staggers the schematic diagram of certain angle for the inner ring blade and outer ring blade of nozzle shown in Fig. 5;
Fig. 7 is the structural representation of third embodiment of the invention nozzle;
Fig. 8 is the structural representation of fourth embodiment of the invention nozzle;
Fig. 9 is the structural representation of fifth embodiment of the invention nozzle;
Figure 10 be in Fig. 9 between inner ring blade and outer ring blade angle more than 0 degree of schematic diagram.
【Symbol description】
1- nozzle entrances;2- inner ring blades;21- inner ring blade upper semisections;22- inner ring blade lower semisections;3- outer rings blade;
31- outer rings blade upper semisection;32- outer rings blade lower semisection;4- double wedges;5- concave tooth;6- outer rings runner;7- intermediate flow channels;In 8-
Between cylinder;9- outer layer cylinders;10- dilution zones;11- outer layers cylinder is exported;12- middle cylinder entrances;13- outer layer drum inlets.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
Fig. 1 to Fig. 3 is refer to, first embodiment of the invention provides a kind of swirling number and the adjustable nozzle of turbulivity, bag
Include:The middle cylinder 8 and outer layer cylinder 9 being coaxially disposed, the inside of middle cylinder 8 are intermediate flow channel 7, and middle cylinder 8 is justified with outer layer
Outer ring runner 6 is formed between cylinder 9.Outer layer cylinder protrudes from middle cylinder along downstream direction, and outer layer cylinder exports 11 and middle circle
Dilution zone 10 is formed between cylinder outlet.
Nozzle also includes cyclone, and it is arranged in the outer ring runner 6 between middle cylinder 8 and outer layer cylinder 9.
Cyclone includes inner ring blade 2 and outer ring blade 3.To clearly show that hydrocyclone structure, outer wall is carried out in Fig. 1
Half-sectional, Fig. 2 and Fig. 3 omit outer wall.
Inner ring blade 2 is fixed on the outer wall of middle cylinder 8, including along multiple blades of middle cylinder circumferential array, outward
Circle blade 3 is fixed on the inwall of outer layer cylinder 9, including along outer layer cylinder circumferential array leaf corresponding with the quantity of inner ring blade 2
The length direction of piece, inner ring blade 2 and outer ring blade 3 extends along the direction with nozzle-axis at an angle, width edge
Nozzle radial direction extends, and the width of inner ring blade 2 and outer ring blade 3 can be the same or different, and preferable width is identical.It is interior
Circle blade 2 and outer ring blade 3 are exported closer to upstream side in the position of nozzle-axis compared with middle cylinder.An adjacent inner ring blade
With outer ring blade composition one swirl vane pair, i.e. an inner ring blade and the multiple swirl vanes pair of outer ring blade composition.
The junction of inner ring blade 2 and outer ring blade 3 has a broached-tooth design, the close outer layer cylinder 9 of inner ring blade, also
Being proximate to the side of outer ring blade 3 has double wedge 4, the close middle cylinder 8 of outer ring blade, that is, is close to inner ring blade 2
Side has concave tooth 5.Double wedge 4 and concave tooth 5 are used to adjust the turbulivity in flow field in outer ring runner 6.
The nozzle operation of the embodiment of the present invention has been blended with air in premixed combustion mode, fuel before nozzle is entered
It is even, nozzle is entered by nozzle entrance 1, it is divided into two parts in the mixture of middle cylinder porch fuel and air, a part is entered
Enter intermediate flow channel 7, this segment fluid flow keeps being axially moved;Another part enters outer ring runner 6, in the presence of cyclone, stream
While body is axially moved, circumferential movement is also carried out;This two parts fluid is mutually blended in dilution zone 10.Due to outer ring stream
The mixture in road carries rotary motion, mixture is formed expansion shape flame in jet expansion under the action of the centrifugal force, improves
The stability of burning, the mixture of intermediate flow channel 7 is the axial movement of irrotationality, can prevent from forming strong inverse flow in jet expansion
Area, reduces flow losses, reduces pollutant emission, therefore the nozzle has good combustion stability and low stain simultaneously
Thing is discharged.
Mesh plate can be placed in middle cylinder 8, the turbulivity for adjusting intermediate flow channel.On mesh plate perforated area with
The ratio of mesh plate suqare is 0-100%, that is to say, that mesh plate 8 can not perforate, mixture only flows into outer ring runner, now
The ratio of perforated area and mesh plate suqare is 0 on mesh plate;Mesh plate 8 can whole perforates, equivalent to being not provided with mesh plate,
The ratio of perforated area and mesh plate suqare is 100% on mesh plate.It is preferred that perforated area and mesh plate suqare on mesh plate
Ratio is 40%-80%.A diameter of 0.1-10mm in hole on mesh plate, the size in hole can be the same or different;The shape in hole
Shape can be the combination of circle, ellipse, triangle, polygon or these shapes.
The nozzle of the present embodiment can also work in diffusion combustion mode, as shown in figure 4, the outlet of cyclone, i.e. inner ring
The downstream of blade 2 and outer ring blade 3, identical axial location, middle cylinder outlet and outer layer are located at middle cylinder outlet
Cylinder outlet 11 is located at identical axial location.
Fuel and air are not blended before nozzle is entered, and middle cylinder entrance 12 can be that fuel inlet can also be empty
Gas entrance, equally, outer layer drum inlet 13 can also be fuel inlet or air intake.Combustion is passed through with to middle cylinder entrance 12
Material, outer layer drum inlet 13 is passed through as a example by air, and fuel enters intermediate flow channel 7 by middle cylinder entrance 12, and air is justified by outer layer
Cylinder entrance 13 enters outer ring runner 6.The air of outer ring runner turns into band rotary fluid, and the fuel of intermediate flow channel is irrotationality fluid, combustion
Material and air spray post blend and burn by jet expansion, are equally discharged with good combustion stability and low stain thing.
Further, the nozzle of the present embodiment, middle cylinder 8 can be rotated about the axis thereof, thus drive inner ring blade 2 around
Axis is rotated, and changes the relative position of inner ring blade 2 and outer ring blade 3.Rotation middle cylinder 8, makes the inner ring of swirl vane pair
Angle between blade 2 and outer ring blade 3 is zero, and now the double wedge 4 of inner ring blade 2 and the concave tooth 5 of outer ring blade 3 are mutually twisted
Together, as shown in Fig. 2 the sphere of action of inner ring blade 2 and outer ring blade 3 is minimum, thus the swirling number and turbulent flow in flow field are strong
Degree is minimum.
Rotation middle cylinder 8, drives inner ring blade 2 to rotate, and makes 3 points of the inner ring blade 2 of swirl vane pair and outer ring blade
From and angle therebetween gradually increase, inner ring blade 2, the sphere of action of outer ring blade 3 constantly expand, double wedge and concave tooth
Range of disturbance is also continued to increase, and the swirling number and turbulence intensity in flow field also gradually increase, as shown in Figure 3;Until 2, inner ring blade
In the centre position of two neighboring outer ring blade 3, as shown in figure 1, now the angle between inner ring blade 2 and outer ring blade 3 is
Maximum, the swirling number and turbulence intensity in flow field is maximum.Angle between inner ring blade and outer ring blade refers to, swirl vane pair
The angle between the radial line where radial line and outer ring blade center where inner ring blade center.
In the present embodiment, outer room cylinder can also be rotated about the axis thereof, or middle cylinder and outer room cylinder can be with
Rotate about the axis, can vary in the relative position of inner ring blade and outer ring blade, so as to adjust flow field swirling number and turbulent flow
Intensity.
As can be seen here, the present invention adjusts inner ring blade and the outer ring of cyclone by rotating middle cylinder or outer layer cylinder
Relative position between blade, you can realize the swirling number in adjustment flow field and the purpose of turbulence intensity.By the shape for monitoring flame
State, when burning occurs to take off the trend of fire, rotates middle cylinder and/or outer layer cylinder, makes adjacent inner coil blade and outer ring blade
Between angle increase, the swirling number and turbulence intensity in flow field can be increased, it is to avoid flame is blown out;When there is tempering trend,
Rotation middle cylinder and/or outer layer cylinder, reduce angle between adjacent inner coil blade and outer ring blade, can reduce flow field
Swirling number and turbulence intensity, prevent tempering, therefore the nozzle operation wide ranges, with good combustion stability and safety
Property.
The nozzle of second embodiment of the invention, in order to reach the purpose of brief description, it is any in above-mentioned first embodiment can
The technical characteristic for making same application is described all and in this, without repeating identical narration.
The inner ring blade of cyclone is divided into two sections along its length, wherein one section is provided with double wedge, another section is provided with recessed
Tooth, outer ring blade is also divided into two sections along its length.Correspondingly, middle cylinder is in axle corresponding with inner ring blade section point
Line position is divided into two sections, and its Upstream section and tract can be rotated about the axis, so as to drive respectively on inner ring blade thereon
Half section 21 and lower semisection 22 are rotated;Outer layer cylinder is divided into two sections in axial location corresponding with outer ring blade section point, its upstream
Section and tract can be rotated about the axis, so as to drive outer ring blade upper semisection 31 thereon and lower semisection 32 to rotate respectively.
As shown in figure 5, together with the double wedge of inner ring blade is mutually twisted with the concave tooth of outer ring blade, inner ring blade upper semisection
21 be also mutually twisted with concave tooth with the double wedge of lower semisection 22 together with, i.e. four vanelets of swirl vane pair are mutually twisted one
Rise and form a big blade.Middle cylinder upstream and downstream section and outer layer cylinder upstream and downstream section rotate to an angle, and make on inner ring blade
Half section 21 and lower semisection 22 and outer ring blade upper semisection 31 and lower semisection 32 are separated, and obtain interlaced leaves as shown in Figure 6.
It is divided into two sections with inner ring blade, outer ring blade, middle cylinder and outer layer cylinder and is described although above-mentioned, this hair
Bright not limited to this, inner ring blade of the invention and outer ring blade can be divided into 2-100 sections, correspondingly, middle cylinder and outer layer
Cylinder can also be divided into 2-100 sections.
The nozzle of third embodiment of the invention, in order to reach the purpose of brief description, it is any in any of the above-described embodiment can
The technical characteristic for making same application is described all and in this, without repeating identical narration.
In this embodiment, as shown in fig. 7, each side of inner ring blade 2 and outer ring blade 3 is smooth curve, do not have
The occlusion structure of double wedge and concave tooth, can equally play a part of to adjust flow field swirling number and turbulence intensity.
The nozzle of fourth embodiment of the invention, in order to reach the purpose of brief description, it is any in any of the above-described embodiment can
The technical characteristic for making same application is described all and in this, without repeating identical narration.
Fig. 8 is referred to, in this embodiment, the inner ring blade 2 and outer ring blade 3 of cyclone can have in the direction of the width
Partly overlap, so when the angle between inside and outside circle blade is more than 0 degree, bigger swirling number can be obtained.
The nozzle of fifth embodiment of the invention, in order to reach the purpose of brief description, it is any in any of the above-described embodiment can
The technical characteristic for making same application is described all and in this, without repeating identical narration.
Fig. 9 is referred to, in this embodiment, inner ring blade 2 is identical with the width of outer ring blade 3, and it is equal to or slightly less than
The width of outer ring runner, the inner ring blade and outer ring blade of swirl vane pair can be with completely overlapped, and inner ring blade is provided with flow-disturbing
Post, outer ring blade is provided with flow-disturbing hole, and when the inside and outside circle blade of swirl vane pair is overlapped, turbulence columns are mutually stung with flow-disturbing hole
Close.Turbulence columns and flow-disturbing hole are used to increase the turbulivity in flow field.The cross sectional shape in turbulence columns and flow-disturbing hole can be circular, triangle
Shape, ellipse, polygon.Turbulence columns are highly 0.01mm-100mm, and flow-disturbing hole depth is 0.01mm-100mm.
Flow-disturbing hole can also be set on inner ring blade, turbulence columns, or inner ring blade and outer ring are set on the blade of outer ring
Also there are turbulence columns in existing flow-disturbing hole on blade.Figure 10 is schematic diagram of the angle more than 0 degree between inner ring blade and outer ring blade.This
Flow-disturbing hole and turbulence columns can also be replaced with the groove turbulence structure being engaged each other outward, it is also possible to reach the rapids in increase flow field
The effect of mobility.
Sixth embodiment of the invention provides a kind of nozzle array, and it includes the spray described in multiple any of the above-described embodiments
Mouth.
Wherein, the nozzle array is circular array, and the circular array includes that P encloses nozzle, and often enclosing nozzle includes Q nozzle,
Wherein 1≤P, Q≤100.
Wherein the nozzle array is rectangular array, and the rectangular array includes P row nozzles, and often row nozzle includes Q nozzle, its
In 1≤P, Q≤100.
Seventh embodiment of the invention provides a kind of burner, and it includes any embodiment in above-mentioned the first to five embodiment
Described nozzle, or the nozzle array described in sixth embodiment.
So far, combined accompanying drawing has been described in detail to the present embodiment.According to above description, those skilled in the art
Should have to the present invention and clearly recognize.
It should be noted that in accompanying drawing or specification text, the implementation for not illustrating or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.Additionally, above-mentioned definition to each element and not only limiting
Various concrete structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can be carried out simply more to it
Change or replace, for example:
(1) turbulence structure can also select other structures;
(2) direction term mentioned in embodiment, for example " on ", D score, "front", "rear", "left", "right" etc., be only ginseng
The direction of accompanying drawing is examined, not for limiting the scope of the invention;
(3) above-described embodiment can be based on design and the consideration of reliability, and the collocation that is mixed with each other is used or and other embodiment
Mix and match is used, i.e., the technical characteristic in different embodiments can freely form more embodiments.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of swirling number and the adjustable nozzle of turbulivity, it is characterised in that including:Middle cylinder and the outer layer circle being coaxially disposed
Cylinder, cyclone is arranged between the middle cylinder and outer layer cylinder;
The cyclone includes inner ring blade and outer ring blade, and the inner ring blade is fixed on the outer wall of middle cylinder, described
Outer ring blade is fixed on outer layer cylinder inner wall, and the inner ring blade and outer ring blade are used to adjust swirling number and turbulivity.
2. nozzle as claimed in claim 1, it is characterised in that
The inner ring blade includes that, along multiple blades of middle cylinder circumferential array, the outer ring blade was included along outer layer cylinder week
To the blade corresponding with inner ring blade quantity of arrangement.
3. nozzle as claimed in claim 2, it is characterised in that the middle cylinder and/or outer layer cylinder can be rotated about the axis,
Relative position between the inner ring blade and outer ring blade changes therewith, and swirling number and turbulivity are conditioned therewith.
4. nozzle as claimed in claim 3, it is characterised in that
The side of the close outer ring blade of the inner ring blade has double wedge, the side of the close inner ring blade of the outer ring blade
With concave tooth.
5. nozzle as claimed in claim 4, it is characterised in that
The inner ring blade is divided into two sections along its length, and the middle cylinder correspondence is divided into two sections;The outer ring blade
Two sections are also divided into along its length, and the outer layer cylinder correspondence is divided into two sections.
6. nozzle as claimed in claim 3, it is characterised in that the inner ring blade and outer ring blade part in the direction of the width
Overlap.
7. nozzle as claimed in claim 3, it is characterised in that one of the inner ring blade and outer ring blade are provided with disturbs
Fluidization tower, another is provided with flow-disturbing hole.
8. nozzle as claimed in claim 7, it is characterised in that described to disturb when the inner ring blade and outer ring blade are overlapped
Fluidization tower is mutually twisted with flow-disturbing hole.
9. a kind of nozzle array, including the nozzle in claim 1 to 8 described in any claim.
10. a kind of burner, including the nozzle in claim 1 to 8 described in any claim, or described in claim 9
Nozzle array.
Priority Applications (1)
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CN201710101338.XA CN106907709B (en) | 2017-02-23 | 2017-02-23 | A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner |
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CN201710101338.XA CN106907709B (en) | 2017-02-23 | 2017-02-23 | A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner |
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CN106907709A true CN106907709A (en) | 2017-06-30 |
CN106907709B CN106907709B (en) | 2019-08-16 |
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CN109519923A (en) * | 2018-11-20 | 2019-03-26 | 李洁 | A kind of coke oven gas burner |
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CN111271708A (en) * | 2020-03-27 | 2020-06-12 | 华侨大学 | Low-nitrogen combustor |
TWI748336B (en) * | 2019-01-25 | 2021-12-01 | 日商三菱動力股份有限公司 | Solid fuel burner |
CN114060808A (en) * | 2021-11-17 | 2022-02-18 | 徐州燃烧控制研究院有限公司 | Spiral pulse low-nitrogen combustion method and combustor thereof |
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EP3485980A1 (en) * | 2017-11-17 | 2019-05-22 | Lechler GmbH | Spray nozzle and an assembly comprising a spray nozzle |
CN109519923A (en) * | 2018-11-20 | 2019-03-26 | 李洁 | A kind of coke oven gas burner |
TWI748336B (en) * | 2019-01-25 | 2021-12-01 | 日商三菱動力股份有限公司 | Solid fuel burner |
CN111271708A (en) * | 2020-03-27 | 2020-06-12 | 华侨大学 | Low-nitrogen combustor |
CN114060808A (en) * | 2021-11-17 | 2022-02-18 | 徐州燃烧控制研究院有限公司 | Spiral pulse low-nitrogen combustion method and combustor thereof |
CN114060808B (en) * | 2021-11-17 | 2024-01-05 | 徐州燃烧控制研究院有限公司 | Spiral pulse low-nitrogen combustion method and burner thereof |
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