CN106016358B - A kind of cyclone having both eddy flow, injection and blending effect - Google Patents
A kind of cyclone having both eddy flow, injection and blending effect Download PDFInfo
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- CN106016358B CN106016358B CN201610371831.9A CN201610371831A CN106016358B CN 106016358 B CN106016358 B CN 106016358B CN 201610371831 A CN201610371831 A CN 201610371831A CN 106016358 B CN106016358 B CN 106016358B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
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Abstract
The present invention provides a kind of cyclones for having both eddy flow, injection and blending effect, oblique flow channel is formed inside and outside the cyclone, flame combustion rate can be made balanced with the flow field rate of gaseous mixture, the stability of burning is improved, the outlet end of outlet section wavy shaped configuration has tooth-shape structure, is conducive to the abundant blending of fuel and air, and reduce friction loss, the stability, completeness and efficiency for improving burning also reduce the weight of cyclone compared to the structure for not having tooth-shape structure.
Description
Technical field
The present invention relates to burner technical field, especially a kind of cyclone for having both eddy flow, injection and blending effect.
Background technique
Gas turbine is widely used in electric power, aviation, petrochemical industry due to the features such as single machine is small in size and output power
Etc. industries.Due to energy crisis and environmental degradation, be badly in need of developing high-efficiency cleaning combustion chamber, it is desirable that combustion chamber have igniting it is reliable,
The characteristics such as flameholding, high-efficient and low emission.Current China problem of environmental pollution is extremely serious, develops gas turbine cleaning combustion
Burning technology is very urgent.Gas turbine manufacturer has developed a variety of clean-burning technologies, and such as poor premixed combustion technology, dilute phase are pre-
Mixed pre-evaporation technique, oil-poor direct injection technology and catalytic combustion technology etc., although pollutant can be effectively reduced in these technologies
Discharge, but the problem of all suffer from combustion instability and this part burner structure is complicated, components are more.
Injection apparatus, such as nozzle, are the important components of combustion gas trochus, and performance largely decides burning effect
Rate, safety and stability, cyclone produce a very large impact burning as its structure of the core component in injection apparatus, especially
It is to have a significant impact to the flow direction of gas, mixing effect, but existing cyclone in these areas ineffective, thus, this
Field needs a kind of cyclone for being able to ascend combustion efficiency, having both multiple functions.
Summary of the invention
(1) technical problems to be solved
In view of this, the main purpose of the present invention is to provide a kind of eddy flows for having both eddy flow, injection and blending effect
Device.
(2) technical solution
The present invention provides a kind of cyclones for having both eddy flow, injection and blending effect, comprising: inducer and outlet section；
The inducer gradually transits to outlet section along axial direction, and the outlet section is circumferentially arranged by multiple wavy shaped configurations, institute
Formation oblique flow channel 2 inside and outside wavy shaped configuration is stated, the outlet end 3 of the wavy shaped configuration has tooth-shape structure.
Preferably, the wavy cross-section curve at the wavy shaped configuration axially displaced section has same shape, institute
The windup-degree for stating the wavy cross-section curve at different location increases gradually in a downstream direction, the wave along axial all positions
Shape wave cross section curve forms the curved surface 8 of wavy shaped configuration, forms oblique flow channel 2 inside and outside the curved surface of the wavy shaped configuration.
Preferably, the tooth-shape structure is monodentate structure, bidentate structure or multiple tooth structure.
Preferably, the profile of the tooth-shape structure is sinusoidal waveform, triangle, quadrangle or the quadrangle with chamfering.
Preferably, the import 1 of the inducer has circular cross-section curve, each section of circular arc of the circular cross-section curve
A wavy shaped configuration of the outlet section is gradually transitted to along axial direction.
Preferably, the windup-degree of the wavy cross-section curve at the different location is along downstream direction according to linear distribution
Rule is gradually increased.
Preferably, the windup-degree of the wavy cross-section curve at the different location is H*/H × E, wherein H is eddy flow
The axial height of device, E are the windup-degree of the wavy cross-section curve of wavy shaped configuration outlet end, and H* is the wave at different location
The axial height of shape wave cross section curve.
Preferably, the wavy cross-section curve and inscribed circle and circumcircle of the wavy shaped configuration are tangent comprising first
Curve and the second curve, first curve is by the edge radial line oa of the inscribed circle and the circular arc of symmetrical radial line oc, inscribed circle
The circular arc jl of ac and circumcircle is surrounded, and the circular arc ac of the inscribed circle and the circular arc jl of circumcircle are divided radial line ob equal part, institute
Stating the first curve includes the first circular arc ah, first straight line hi and the second circular arc ij, the first circular arc ah and inscribed circle and equal part
Radial line ob is tangent, and first straight line is overlapped with equal part radial line ob, and the second circular arc ij and circumcircle and equal part radial line ob are tangent, the
Two curves are symmetrical about symmetrical radial line oa with the first curve.
Preferably, the radius r1=R1/ (1/sinB+1) of the first circular arc ah, wherein R1 is inscribed circle radius, and B is
The angle of edge radial line oa and equal part radial line ob；The radius r2=R2/ (1/sinC-1) of the second circular arc ij, wherein R2 is
Circumscribed radius of circle, C are the angle of equal part radial line ob and symmetrical radial line oc.
The present invention also provides a kind of injection apparatus, comprising: above-mentioned cyclone, inner layer cylinder 9 and outer layer cylinder 10, it is described
Cyclone is set between inner layer cylinder 9 and outer layer cylinder 10.
(3) beneficial effect
It can be seen from the above technical proposal that the of the invention cyclone for having both eddy flow, injection and blending effect have with
It is lower the utility model has the advantages that
(1) inside and outside it formed oblique flow channel, air-flow in oblique flow channel axially movable while also circumferentially side
To movement, when cyclone is used for the gaseous mixture of fuel and air, under the action of oblique flow channel, gaseous mixture cyclone outlet meeting
Low regime is generated, flame combustion rate is balanced with the flow field rate of gaseous mixture, can prevent flame-out and flame pulsation phenomenon hair
It is raw, the stability of burning is improved, low regime also makes unburned complete gaseous mixture reflux, and the gaseous mixture of reflux continues to participate in combustion
It burns, improves the completeness and efficiency of burning；
(2) outlet end of outlet section wavy shaped configuration has tooth-shape structure, and fuel is each led into inside and outside cyclone
When with air, fuel and air can sufficiently blend under the action of tooth-shape structure, and reduce friction loss, improve burning
Stability, completeness and efficiency also reduce the weight of cyclone compared to the structure for not having tooth-shape structure；
(3) the wavy cross-section curve being made of the first curve of radial symmetric and the second curve, can make oblique flow channel
Interior air velocity distribution rate is more uniform, is conducive to further increase the stability of burning, completeness and efficiency；
(4) pass through the windup-degree of adjusting wavy shaped configuration wavy cross-section curve, thus it is possible to vary reacting fluid is circumferentially
The track of azimuthal rotational motion, reacting fluid flow field rate change therewith, so as to be better achieved flame combustion rate with react
The matching of fluid flow fields rate.
Detailed description of the invention
Fig. 1 is the schematic three dimensional views of cyclone of the embodiment of the present invention；
Fig. 2 is the inscribed circle and circumcircle schematic diagram of the wavy shaped configuration outlet end of cyclone shown in Fig. 1；
Fig. 3 is the wavy shaped configuration outlet end of cyclone shown in FIG. 1 and the location diagram of inscribed circle and circumcircle；
Fig. 4 is the wavy shaped configuration outlet end parameter schematic diagram of cyclone shown in Fig. 1；
Fig. 5 is the wavy cross-section curve and inducer import circular arc schematic diagram of cyclone shown in Fig. 1；
Fig. 6 is the maximum twist angle schematic diagram of the wavy cross-section curve of wavy shaped configuration outlet end shown in Fig. 5；
Fig. 7 is the wavy cross-section curve of cyclone shown in Fig. 5 and the side view of inducer import circular arc；
Fig. 8 is the wavy cross-section curve of cyclone shown in Fig. 5 and the top view of inducer import circular arc；
Fig. 9 is the curved surface schematic diagram of the wavy cross-section curve of cyclone shown in fig. 5；
Figure 10 is that the wavy shaped configuration outlet end of the embodiment of the present invention is the cyclone schematic three dimensional views of tooth-shape structure；
Figure 11 is the cyclone schematic diagram of monodentate structure；
Figure 12 is the cyclone schematic diagram of bidentate structure；
Figure 13 is the structural schematic diagram of the injection apparatus of the embodiment of the present invention.
[symbol description]
1- import；2- oblique flow channel；The outlet end 3-；4,5,6- wavy cross-section curve；7- circular arc；8- curved surface；9- internal layer
Cylinder；10- outer layer cylinder；
The angle of A- wavy cross-section curved profile；The angle of the edge B- radial line oa and equal part radial line ob；C- etc. divides radial line
The angle of ob and symmetrical radial line oc；The windup-degree of the wavy cross-section curve of E- wavy shaped configuration outlet end；H- cyclone
Axial height；Between axial distance, wavy cross-section curve 5 and 6 between H1- wavy cross-section curve 4 and 5 it is axial away from
From；Axial distance between H2- wavy cross-section curve 6 and circular arc 7；The radius of R1- wavy shaped configuration outlet end inscribed circle；
The radius of R2- wavy shaped configuration outlet end circumcircle；The radius of the first circular arc of r1-；The radius of the second circular arc of r2-；a,b,c,d,
The corresponding inscribed circle circular arc Along ent of e- angle A；The center of circle of o- inscribed circle and circumcircle；The first circular arc of ah-；Hi- first straight line；
The second circular arc of ij-；Point on the edge f- radial line oa；Point on the symmetrical radial line oc of g-；The circular arc ac of inscribed circle；The circular arc of circumcircle
jl。
Specific embodiment
The invention proposes a kind of cyclones for having both eddy flow, injection and blending effect, the oblique flow channel on the cyclone
Eddy flow and the injection of combustion reactant may be implemented, the outlet end of tooth-shape structure can promote the blending of combustion reactant, reduce
The friction loss of combustion reactant, the cyclone have both eddy flow, injection and promote three kinds of effects of blending, have structure simply tight
It gathers, light-weight advantage, the part count of burner can be reduced, reduce burner dimensions, mitigate burner weight.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Referring to Fig. 1, the embodiment of the invention provides a kind of cyclones comprising inducer and outlet section, outlet section is by N number of
Wavy shaped configuration circumferentially arranges, and the wavy cross-section at wavy shaped configuration axially displaced section with same shape is bent
The windup-degree of line, wavy cross-section curve increases gradually in a downstream direction, and the wavy cross-section along axial all positions is bent
The curved surface 8 of linear waviness structure forms oblique flow channel 2 inside and outside wavy shaped configuration curved surface, wherein wavy shaped configuration
Quantity N is not limited, and is acted on as long as being able to achieve and having both eddy flow, injection and blending, the value of quantity N is such as, but not limited to 2
≤N≤100。
The import 1 of inducer has circular cross-section curve, and entirety gradually transits to outlet section along axial direction, i.e., inducer into
Each section of circular arc of mouth gradually transits to a wavy shaped configuration of outlet section along axial direction, and each section of circular arc of inducer import is equal
One wavy shaped configuration of corresponding outlet section.
As shown in Figure 10,11 and 12, the outlet end 3 of the wavy shaped configuration of outlet section has tooth-shape structure, and tooth-shape structure can
Can be 1- using monodentate structure (Figure 10, Figure 11), bidentate structure (Figure 12) or multiple tooth structure, the number of teeth amount of tooth-shape structure
1000, the profile of tooth-shape structure can be sinusoidal waveform, triangle, quadrangle, the quadrangle with chamfering, preferably four sides
Shape.
The cyclone of the embodiment of the present invention, inside and outside formed oblique flow channel, gas by inducer to outlet section side
To flowing, gas flows through the oblique flow channel of the laggard inlet/outlet section of inducer, air-flow in oblique flow channel axially movable while
It also along the circumferential direction moves, and cyclone is sprayed by outlet section, to generate eddy flow effect.When cyclone is used for fuel and air
Gaseous mixture when, under the action of oblique flow channel, gaseous mixture cyclone outlet can generate low regime, after ignition, flame combustion
Burning rate is balanced with the flow field rate of gaseous mixture, can prevent flame-out and flame pulsation phenomenon generation, improve the stabilization of burning
Property, low regime also makes unburned complete gaseous mixture reflux, and the gaseous mixture of reflux continues to participate in burning, improves the complete of burning
Full property and efficiency.Meanwhile the outlet end of outlet section wavy shaped configuration has tooth-shape structure, each leads into inside and outside cyclone
When fuel and air, in addition to above-mentioned swirl injection effect, fuel and air can sufficiently mix under the action of tooth-shape structure
It is mixed, and reduce friction loss, the stability, completeness and efficiency of burning are improved, compared to the structure for not having tooth-shape structure,
The weight of cyclone is also reduced, can be used in the injection apparatus of various burners.
In the present embodiment, cyclone is whole cylindrical structure, inside and outside refer to the inside of cylinder-like structure
One layer of side and outside, axial direction are the direction that cylinder-like structure symmetry axis extends, and circumferential direction is the circle centered on symmetry axis
Circumferential direction, section refer to that downstream direction refers to from the import 1 of inducer to the outlet of outlet section with perpendicular to axial plane
Direction.
Further, the cyclone of the embodiment of the present invention, the wavy cross-section curve of wavy shaped configuration is by radial symmetric
The first curve and the second curve composition.Fig. 2 shows the inscribed circle of wavy shaped configuration outlet end and circumcircle, radius difference
For R1 and R2, A indicates the angle of a wavy cross-section curved profile, and a, b, c, d, e are respectively the corresponding inscribed circle of angle A
Circular arc Along ent.Fig. 3 and Fig. 4 shows the wavy cross-section curve of wavy shaped configuration outlet end and the position of inscribed circle and circumcircle
Relationship is set, inscribed circle and wavy cross-section curve open end are tangent, and circumcircle and wavy cross-section curve closed end are tangent, symmetrically
Radial line oc is the symmetry axis of wavy cross-section curve, and the first curve and the second curve are symmetrical about symmetrical radial line oc, with waveform
Be illustrated for first curve of cross section curve, the first curve by inscribed circle edge radial line oa and symmetrical radial line oc, inscribe
The circular arc jl of round circular arc ac and circumcircle are surrounded, and the circular arc ac of inscribed circle and the circular arc jl of circumcircle are divided radial line ob etc.
Point, the first curve is made of the first circular arc ah, first straight line hi and the second circular arc ij, the folder of edge radial line oa and equal part radial line ob
Angle B is equal with the angle C of equal part radial line ob and symmetrical radial line oc.
It is the point on edge radial line oa that first circular arc ah is tangential on point a and point h, f with inscribed circle and equal part radial line ob respectively
And fh, perpendicular to equal part radial line ob, the length of line segment af and fh are equal to the radius r1 of the first circular arc ah, that is, meet sinB=r1/
(R1-r1), i.e. r1=R1/ (1/sinB+1)；
It is the point on symmetrical radial line oc that second circular arc ij is tangential on point j and point i, g with circumcircle and equal part radial line ob respectively
And gi, perpendicular to equal part radial line ob, the length of line segment gi and gj are equal to the radius r2 of the second circular arc ij, that is, meet sinC=r2/
(R2+r2), i.e. r2=R2/ (1/sinC-1).It can join with the second curve shape of the first curve symmetric of wavy cross-section curve
According to above-mentioned shape, details are not described herein.Radial is the radial direction of cyclone cylinder-like structure, i.e. the half of inscribed circle and circumcircle
Diameter direction.
Cyclone with above-mentioned wavy shaped configuration can make the air velocity distribution rate in oblique flow channel more uniform, have
Conducive to the stability, completeness and efficiency for further increasing burning.
Preferably, the axial height of inducer and outlet section can be identical, i.e., cyclone is from half axial height
Start, cross sectional shape is wavy cross-section curve.
In the present embodiment, the windup-degree of wavy shaped configuration wavy cross-section curve refers to, wavy shaped configuration waveform
Angle between the circular arc of cross section curve inducer import corresponding with the wavy shaped configuration, as shown in figure 5, same waveform knot
Have between the circular arc 7 of the inducer import corresponding with the wavy shaped configuration of wavy cross-section curve 4,5,6 at structure different location
There are different angles, wherein the windup-degree of wavy cross-section curve is gradually increased along downstream direction according to a regularity of distribution, preferably
Ground, which is linear distribution, as shown in fig. 6, the windup-degree of the wavy cross-section curve of wavy shaped configuration outlet end
It is the maximum twist angle of the wavy cross-section curve of wavy shaped configuration for E, E.The axial height of wavy shaped configuration is the position H*
The windup-degree of the wavy cross-section curve at place is D=H*/H × E, and H is the axial height of cyclone, i.e., import is between outlet
Distance.
As shown in Figure 7 and Figure 8, the wherein axial distance between wavy cross-section curve 4 and 5,5 and of wavy cross-section curve
Axial distance between 6 is identical, is the axial height that H1 and H1=H/4, H are cyclone, wavy cross-section curve 6 and circular arc
Axial distance between 7 is H2, and H2=H/2, by the linear distribution rule of above-mentioned windup-degree it is found that wavy cross-section curve
6 windup-degree is E/2, and the windup-degree of wavy cross-section curve 5 is 3E/4, and the windup-degree of wavy cross-section curve 4 is
E, as shown in figure 9, the wavy cross-section curved shape waviness structure of wavy cross-section curve 4,5,6 and all same shapes
Curved surface 8.
The cyclone of the embodiment of the present invention can be with by adjusting the windup-degree of wavy shaped configuration wavy cross-section curve
Change the track of reacting fluid along the circumferential direction rotary motion, reacting fluid flow field rate changes therewith, to be better achieved
The matching of flame combustion rate and reacting fluid flow field rate.
In another embodiment of the present invention, a kind of injection apparatus for burner, such as nozzle are provided, is wrapped
Above-mentioned cyclone, inner layer cylinder 9 and outer layer cylinder 10 are included, as shown in figure 13, cyclone is set to inner layer cylinder 9 and outer layer cylinder
It between 10, after gas enters nozzle, also along the circumferential direction moves while in oblique flow channel axially movable, is sprayed by outlet
Eddy flow effect is generated afterwards, when cyclone is used for the gaseous mixture of fuel and air, under the action of oblique flow channel, jet expansion meeting
Low regime is generated, after ignition, flame combustion rate is balanced with the flow field rate of gaseous mixture, can prevent flame-out and flame arteries and veins
The generation of dynamic phenomenon, improves the stability of burning, and low regime also makes unburned complete gaseous mixture reflux, the gaseous mixture of reflux
Burning is continued to participate in, the completeness and efficiency of burning are improved.Meanwhile the outlet end of wavy shaped configuration has tooth-shape structure, when
When each leading into fuel and air inside and outside cyclone, fuel and air can sufficiently blend under the action of tooth-shape structure,
And reduce friction loss, the stability, completeness and efficiency of burning are improved, compared to the structure for not having tooth-shape structure, also
Alleviate the weight of nozzle.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and not only limiting
The various specific structures mentioned in embodiment, shape, those of ordinary skill in the art simply can be changed or be replaced to it
It changes, such as:
(1) wavy shaped configuration can also be using other constructions, as long as identical function can be completed；
(2) it can provide the demonstration of the parameter comprising particular value herein, but these parameters are worth without definite equal to corresponding, and
It is that can be similar to analog value in acceptable error margin or design constraint；
(3) direction term mentioned in embodiment, such as "upper", "lower", "front", "rear", "left", "right" etc. are only ginsengs
The direction for examining attached drawing, the protection scope being not intended to limit the invention；
(4) above-described embodiment can be based on the considerations of design and reliability, and the collocation that is mixed with each other uses or and other embodiments
Mix and match uses, i.e., the technical characteristic in different embodiments can freely form more embodiments.
In conclusion cyclone provided by the invention, inside and outside form oblique flow channel, gas is by inducer to exporting
The direction flowing of section, gas flow through the oblique flow channel of the laggard inlet/outlet section of inducer, air-flow in oblique flow channel axially movable
While also along the circumferential direction move, and cyclone is sprayed by outlet section, to generate eddy flow effect.When cyclone is used for fuel
When with the gaseous mixture of air, under the action of oblique flow channel, gaseous mixture cyclone outlet can generate low regime, after ignition,
Flame combustion rate is balanced with the flow field rate of gaseous mixture, can prevent flame-out and flame pulsation phenomenon generation, improve burning
Stability, low regime also makes unburned complete gaseous mixture reflux, and the gaseous mixture of reflux continues to participate in burning, improves combustion
The completeness and efficiency of burning.Meanwhile the outlet end of outlet section wavy shaped configuration has tooth-shape structure, divides inside and outside cyclone
When not being passed through fuel and air, in addition to above-mentioned swirl injection effect, fuel and air can be under the action of tooth-shape structure
Sufficiently blending, and reduce friction loss, the stability, completeness and efficiency of burning are improved, compared to without tooth-shape structure
Structure, also reduce the weight of cyclone.The wavy cross-section being made of the first curve and the second curve of radial symmetric is bent
Line can make the air velocity distribution rate in oblique flow channel more uniform, be conducive to further increase the stability of burning, completeness
And efficiency.By the windup-degree for adjusting wavy shaped configuration wavy cross-section curve, thus it is possible to vary reacting fluid is along the circumferential direction
The track of rotary motion, reacting fluid flow field rate change therewith, so that flame combustion rate and reacting fluid is better achieved
The matching of flow field rate.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (4)
1. a kind of cyclone for having both eddy flow, injection and blending effect characterized by comprising inducer and outlet section；
The inducer gradually transits to outlet section along axial direction, the outlet section circumferentially arranged by multiple wavy shaped configurations and
At the outlet end (3) of formation oblique flow channel (2) inside and outside the wavy shaped configuration, the wavy shaped configuration has tooth form
Structure；
Wavy cross-section curve at the wavy shaped configuration axially displaced section has a same shape, at the different location
The windup-degree of wavy cross-section curve increase gradually in a downstream direction, the wavy cross-section curve along axial all positions
The curved surface (8) of wavy shaped configuration is formed, forms oblique flow channel (2) inside and outside the curved surface of the wavy shaped configuration；
The wavy cross-section curve and inscribed circle and circumcircle of the wavy shaped configuration are tangent comprising the first curve and the second song
Line, first curve is by the edge radial line (oa) and symmetrical radial line (oc) of the inscribed circle, the circular arc (ac) of inscribed circle and outer
The circular arc (jl) of the circle of contact surrounds, and the circular arc (ac) of the inscribed circle and the circular arc (jl) of circumcircle are divided radial line (ob) equal part,
First curve includes the first circular arc (ah), first straight line (hi) and the second circular arc (ij), first circular arc (ah) with it is interior
The circle of contact and equal part radial line (ob) are tangent, and first straight line is overlapped with equal part radial line (ob), second circular arc (ij) and circumcircle and
Equal part radial line (ob) is tangent, and the second curve and the first curve are symmetrical about symmetrical radial line (oa)；
The radius r1=R1/ (1/sinB+1) of first circular arc (ah), wherein R1 is inscribed circle radius, and B is edge radial line
(oa) with the angle of equal part radial line (ob)；The radius r2=R2/ (1/sinC-1) of second circular arc (ij), wherein R2 is outer
Circle of contact radius, C are the angle of equal part radial line (ob) and symmetrical radial line (oc)；
The tooth-shape structure is monodentate structure, bidentate structure or multiple tooth structure；The profile of the tooth-shape structure is sinusoidal waveform, three
Angular, quadrangle or quadrangle with chamfering；The number of teeth amount of the tooth-shape structure is 1-1000；
The import (1) of the inducer has a circular cross-section curve, each section of circular arc of the circular cross-section curve along axial direction by
Gradual transition to the outlet section a wavy shaped configuration.
2. cyclone as described in claim 1, which is characterized in that the torsion of the wavy cross-section curve at the different location
Angle is gradually increased along downstream direction according to linear distribution rule.
3. cyclone as claimed in claim 2, which is characterized in that the torsion of the wavy cross-section curve at the different location
Angle is H*/H × E, wherein H is the axial height of cyclone, and E is the wavy cross-section curve of wavy shaped configuration outlet end
Windup-degree, H* are the axial height of the wavy cross-section curve at different location.
4. a kind of injection apparatus characterized by comprising cyclone described in any one of claims 1 to 3 claim,
Inner layer cylinder (9) and outer layer cylinder (10), the cyclone are set between inner layer cylinder (9) and outer layer cylinder (10).
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| CN106705045B (en) * | 2017-01-22 | 2019-08-09 | 中国科学院工程热物理研究所 | A kind of adjustable nozzle of interior outer flow passage equivalent proportion, nozzle array and burner |
| CN111536555A (en) * | 2020-05-08 | 2020-08-14 | 中国航发湖南动力机械研究所 | Engine and engine combustion chamber thereof |
| CN114688524A (en) * | 2020-12-31 | 2022-07-01 | 大连理工大学 | Wave-shaped pre-film type gas-assisted atomizing nozzle with boss |
| CN114321976B (en) * | 2021-12-13 | 2023-03-21 | 中国船舶重工集团公司第七0三研究所 | Bidirectional staggered injection double-channel torsion cyclone |
| JP2024078998A (en) * | 2022-11-30 | 2024-06-11 | 三菱重工航空エンジン株式会社 | Fuel nozzle and gas turbine engine |
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| US20130067920A1 (en) * | 2010-02-23 | 2013-03-21 | Timothy A. Fox | Fuel injector and swirler assembly with lobed mixer |
| US20150000285A1 (en) * | 2011-12-12 | 2015-01-01 | Siemens Aktiengesellschaft | Fuel nozzle for two fuels |
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| US20030058737A1 (en) * | 2001-09-25 | 2003-03-27 | Berry Jonathan Dwight | Mixer/flow conditioner |
| US20050097889A1 (en) * | 2002-08-21 | 2005-05-12 | Nickolaos Pilatis | Fuel injection arrangement |
| WO2008019969A1 (en) * | 2006-08-14 | 2008-02-21 | Siemens Aktiengesellschaft | Combustion system, particularly for a gas turbine |
| US20130067920A1 (en) * | 2010-02-23 | 2013-03-21 | Timothy A. Fox | Fuel injector and swirler assembly with lobed mixer |
| US20110265447A1 (en) * | 2010-04-29 | 2011-11-03 | Cunningham Mark Huzzard | Gas turbine engine exhaust mixer |
| US20120131923A1 (en) * | 2010-11-30 | 2012-05-31 | General Electric Company | System and method for premixer wake and vortex filling for enhanced flame-holding resistance |
| US20150000285A1 (en) * | 2011-12-12 | 2015-01-01 | Siemens Aktiengesellschaft | Fuel nozzle for two fuels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106016358A (en) | 2016-10-12 |
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