CN106016358A - Whirlcone integrating rotational flow, jetting and mixing functions - Google Patents
Whirlcone integrating rotational flow, jetting and mixing functions Download PDFInfo
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- CN106016358A CN106016358A CN201610371831.9A CN201610371831A CN106016358A CN 106016358 A CN106016358 A CN 106016358A CN 201610371831 A CN201610371831 A CN 201610371831A CN 106016358 A CN106016358 A CN 106016358A
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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 invention provides a whirlcone integrating rotational flow, jetting and mixing functions. Inclined flow channels are formed in the inner side and the outer side of the whirlcone, the flame combustion rate and the mixed gas flow field speed rate can be balanced, and the combustion stability is improved. A tooth-shaped structure is arranged at the outlet end of a wavy structure of an outlet section, and therefore sufficient mixing of fuel and air is facilitated, friction losses are reduced, and the combustion stability, completeness and efficiency are improved. Compared with a structure not provided with the tooth-shaped structure, the weight of the whirlcone is reduced.
Description
Technical field
The present invention relates to burner technical field, especially one have eddy flow concurrently, spray and make with blending
Cyclone.
Background technology
Gas turbine, due to features such as unit volume are little and output is big, is widely used in electric power, boat
The industries such as sky, petrochemical industry.Due to energy crisis and ecological deterioration, it is badly in need of development high-efficiency cleaning burning
Room, it is desirable to combustor has the characteristics such as reliable, flameholding, efficiency height and low emission of lighting a fire.Currently
China's problem of environmental pollution is extremely serious, and development gas turbine clean-burning technology is the most urgent.Combustion gas
Turbine manufacturer has been developed for multiple clean-burning technology, such as lean premixed combustion technology, dilute phase premix in advance
Evaporation technique, oil-poor direct injection technology and catalytic combustion technology etc., although these technology can effectively drop
The discharge of low stain thing, but all suffer from combustion instability problem and also this part burner structure is complicated,
Parts are many.
Injection apparatus, such as nozzle, be the vitals of combustion gas trochus, and its performance is to a great extent
Decide efficiency of combustion, safety and stability, cyclone as the core component in injection apparatus its
Burning is produced a very large impact by structure, especially has a significant impact the flow direction, the mixing effect of gas,
But the poor effect that existing cyclone is in these areas, thus, this area is needed one badly and can be promoted
Combustion efficiency, have the cyclone of several functions concurrently.
Summary of the invention
(1) to solve the technical problem that
In view of this, present invention is primarily targeted at provide one have concurrently eddy flow, spray with blend
The cyclone of effect.
(2) technical scheme
The invention provides and a kind of have eddy flow concurrently, spray and the cyclone of blending effect, including: import
Section and outlet section；Described inducer the most gradually transits to outlet section, and described outlet section is by multiple ripples
Shape wave structure circumferentially arranges and forms, and forms oblique flow passage 2 inside and outside described wavy shaped configuration,
The port of export 3 of described wavy shaped configuration has tooth-shape structure.
Preferably, the wavy cross-section curve at described wavy shaped configuration axially displaced section has phase
Similar shape, the windup-degree of the wavy cross-section curve of described various location increases gradually in a downstream direction
Greatly, the curved surface 8 of the wavy cross-section shaped form waviness structure of the most all positions, described
Oblique flow passage 2 is formed inside and outside the curved surface of wavy shaped configuration.
Preferably, described tooth-shape structure is monodentate structure, bidentate structure or many toothings.
Preferably, the profile of described tooth-shape structure is sinusoidal wave form, triangle, tetragon or band chamfering
Tetragon.
Preferably, the import 1 of described inducer has circular cross-section curve, described circular cross-section curve
Each section of circular arc the most gradually transit to a wavy shaped configuration of described outlet section.
Preferably, the windup-degree of the wavy cross-section curve of described various location is pressed along downstream direction
It is gradually increased according to linear distribution rule.
Preferably, the windup-degree of the wavy cross-section curve of described various location is H*/H × E,
Wherein, H is the axial height of cyclone, and E is the wavy cross-section curve of the wavy shaped configuration port of export
Windup-degree, H* is the axial height of the wavy cross-section curve of various location.
Preferably, the wavy cross-section curve of described wavy shaped configuration is tangent with inscribed circle and circumcircle,
It includes the first curve and the second curve, and described first curve is by the edge radial line oa of described inscribed circle
Surround with symmetrical radial line oc, the circular arc ac of inscribed circle and circumscribed circular arc jl, described inscribed circle
Circular arc ac and circumscribed circular arc jl halved radial line ob decile, described first curve includes the first circle
Arc ah, the first straight line hi and the second circular arc ij, described first circular arc ah and inscribed circle and decile radial line
Ob is tangent, and the first straight line overlaps with decile radial line ob, described second circular arc ij and circumcircle and decile
Radial line ob is tangent, and the second curve and the first curve are symmetrical about symmetrical radial line oa.
Preferably, the radius r1=R1/ (1/sinB+1) of described first circular arc ah, wherein, R1 is interior
Circle of contact radius, B is the angle of edge radial line oa and decile radial line ob；The half of described second circular arc ij
Footpath r2=R2/ (1/sinC-1), wherein, R2 is circumcircle radius, and C is that decile radial line ob is with symmetrical
The angle of radial line oc.
Present invention also offers a kind of injection apparatus, including: above-mentioned cyclone, inner layer cylinder 9 and outer
Layer cylinder 10, described cyclone is arranged between inner layer cylinder 9 and outer layer cylinder 10.
(3) beneficial effect
From technique scheme it can be seen that the present invention's has eddy flow concurrently, sprays and the rotation of blending effect
Stream device has the advantages that
(1) oblique flow passage is formed inside and outside it, air-flow axially movable same in oblique flow passage
Time the most along the circumferential direction move, when cyclone is for the gaseous mixture of fuel and air, at oblique flow passage
Effect under, gaseous mixture cyclone outlet can produce low regime, the stream of flame combustion speed and gaseous mixture
Field rate equalizes, and is possible to prevent the flame-out and generation of flame pulsation phenomenon, improves the stability of burning,
Low regime also makes unburned gaseous mixture completely reflux, and the gaseous mixture of backflow continues to participate in burning, carries
The completeness of high burning and efficiency；
(2) port of export of outlet section wavy shaped configuration has tooth-shape structure, inside and outside cyclone
When each leading into fuel and air, fuel and air fully can blend under the effect of tooth-shape structure,
And reduce friction loss, improve the stability of burning, completeness and efficiency, compared to not having tooth
The structure of shape structure, also reduces the weight of cyclone；
(3) the wavy cross-section curve being made up of the first curve and second curve of radial symmetric, can
So that the air velocity distribution speed in oblique flow passage is more uniform, be conducive to improving further stablizing of burning
Property, completeness and efficiency；
(4) by regulating the windup-degree of wavy shaped configuration wavy cross-section curve, thus it is possible to vary anti-
The track of fluid along the circumferential direction rotary motion, reacting fluid flow field speed is answered to change therewith, in order to more
Realize well mating of flame combustion speed and reacting fluid flow field speed.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views of embodiment of the present invention cyclone；
Fig. 2 is inscribed circle and the circumcircle schematic diagram of the wavy shaped configuration port of export of cyclone shown in Fig. 1；
Fig. 3 is the wavy shaped configuration port of export and inscribed circle and the circumscribed position of the cyclone shown in Fig. 1
Put graph of a relation；
Fig. 4 is the wavy shaped configuration port of export parameter schematic diagram of cyclone shown in Fig. 1；
Fig. 5 is wavy cross-section curve and the inducer import circular arc schematic diagram of cyclone shown in Fig. 1；
Fig. 6 is the maximum twist angle of the wavy cross-section curve of the wavy shaped configuration port of export shown in Fig. 5
Schematic diagram；
Fig. 7 is the wavy cross-section curve side view with inducer import circular arc of cyclone shown in Fig. 5；
Fig. 8 is the wavy cross-section curve top view with inducer import circular arc of cyclone shown in Fig. 5；
Fig. 9 is the curved surface schematic diagram of the wavy cross-section curve of the cyclone shown in Fig. 5；
Figure 10 is that the cyclone that the wavy shaped configuration port of export is tooth-shape structure of the embodiment of the present invention is three-dimensional
Schematic diagram；
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 representation of the injection apparatus of the embodiment of the present invention.
[symbol description]
1-import；2-oblique flow passage；The 3-port of export；4,5,6-wavy cross-section curve；7-circular arc；
8-curved surface；9-inner layer cylinder；10-outer layer cylinder；
The angle of A-wavy cross-section curved profile；B-edge radial line oa and the angle of decile radial line ob；
C-etc. points of radial line ob and the angle of symmetrical radial line oc；The wavy cross-section of the E-wavy shaped configuration port of export
The windup-degree of curve；The axial height of H-cyclone；Between H1-wavy cross-section curve 4 and 5
Axial distance, axial distance between wavy cross-section curve 5 and 6；H2-wavy cross-section is bent
Axial distance between line 6 and circular arc 7；The radius of R1-wavy shaped configuration port of export inscribed circle；R2-
The circumscribed radius of the wavy shaped configuration port of export；The radius of r1-the first circular arc；The radius of r2-the second circular arc；
The inscribed circle circular arc Along ent that a, b, c, d, e-angle A is corresponding；O-inscribed circle and circumscribed circle
The heart；Ah-the first circular arc；Hi-the first straight line；Ij-the second circular arc；Point on f-edge radial line oa；g-
Point on symmetrical radial line oc；The circular arc ac of inscribed circle；Circumscribed circular arc jl.
Detailed description of the invention
The present invention proposes and a kind of has eddy flow concurrently, sprays and the cyclone of blending effect, on this cyclone
Oblique flow passage can realize eddy flow and the injection of combustion reactant, the port of export of tooth-shape structure can promote
Enter combustion reactant blending, reduce combustion reactant friction loss, this cyclone have concurrently eddy flow,
Injection and promotion blend three kinds of effects, have advantage simple and compact for structure, lightweight, it is possible to reduce
The part count of burner, reduce burner dimensions, alleviate burner weight.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with concrete real
Execute example, and referring to the drawings, the present invention is described in more detail.
Seeing Fig. 1, embodiments provide a kind of cyclone, it includes inducer and outlet section,
Outlet section is circumferentially arranged by N number of wavy shaped configuration and forms, at wavy shaped configuration axially displaced section
Having the wavy cross-section curve of same shape, the windup-degree of wavy cross-section curve is along downstream direction
It is gradually increased, the curved surface 8 of the wavy cross-section shaped form waviness structure of the most all positions,
Forming oblique flow passage 2 inside and outside wavy shaped configuration curved surface, wherein, quantity N of wavy shaped configuration is not
Giving restriction, as long as realizing having concurrently eddy flow, spraying and act on blending, the value of quantity N is such as
But it is not limited to 2≤N≤100.
The import 1 of inducer has circular cross-section curve, and its entirety the most gradually transits to outlet section,
I.e. each section of circular arc of inducer import the most gradually transits to a wavy shaped configuration of outlet section,
One wavy shaped configuration of all corresponding outlet section of each section of circular arc of inducer import.
Such as Figure 10, shown in 11 and 12, the port of export 3 of the wavy shaped configuration of outlet section has profile of tooth knot
Structure, tooth-shape structure can use monodentate structure (Figure 10, Figure 11), bidentate structure (Figure 12) or many
Toothing, the number of teeth amount of tooth-shape structure can be 1-1000, and the profile of tooth-shape structure can be sinusoidal
Waveform, triangle, tetragon, the tetragon of band chamfering, preferably tetragon.
The cyclone of the embodiment of the present invention, forms oblique flow passage inside and outside it, gas is by inducer extremely
The direction flowing of outlet section, gas flows through the oblique flow passage of inducer laggard inlet/outlet section, and air-flow is tiltedly
In circulation road axially movable while the most along the circumferential direction move, and sprayed cyclone by outlet section,
Thus produce eddy flow effect.When cyclone is for the gaseous mixture of fuel and air, at oblique flow passage
Under effect, gaseous mixture cyclone outlet can produce low regime, after ignition, flame combustion speed with
The flow field speed equilibrium of gaseous mixture, is possible to prevent the flame-out and generation of flame pulsation phenomenon, improves burning
Stability, low regime also makes unburned gaseous mixture completely reflux, and the gaseous mixture of backflow continues ginseng
With burning, improve completeness and the efficiency of burning.Meanwhile, the port of export of outlet section wavy shaped configuration
There is tooth-shape structure, when each leading into fuel and air inside and outside cyclone, except having above-mentioned rotation
Outside stream jeting effect, fuel and air fully can blend under the effect of tooth-shape structure, and reduction rubs
Wear mistake, improve the stability of burning, completeness and efficiency, compared to not having tooth-shape structure
Structure, also reduces the weight of cyclone, may be used in the injection apparatus of various burner.
In the present embodiment, cyclone is overall structure cylindrically, inside and outside refer to cylindrical shape
The interior side of structure and one layer, outside, its direction axially extended for cylinder-like structure axis of symmetry, its
Circumference is the circumferencial direction centered by axis of symmetry, and cross section refers to and is perpendicular to axial plane, downstream
Direction refers to the direction of the outlet of import 1 to the outlet section from inducer.
Further, the cyclone of the embodiment of the present invention, the wavy cross-section curve of its wavy shaped configuration
The first curve and the second curve by radial symmetric form.Fig. 2 shows the wavy shaped configuration port of export
Inscribed circle and circumcircle, its radius is respectively R1 and R2, A and represents a wavy cross-section curve wheel
Wide angle, a, b, c, d, e are respectively the circular arc Along ent of inscribed circle corresponding to angle A.Figure
3 and Fig. 4 show the wavy cross-section curve of the wavy shaped configuration port of export and inscribed circle and circumscribed
Position relationship, inscribed circle is tangent with wavy cross-section curve opening, and circumcircle is bent with wavy cross-section
Line closed end is tangent, and symmetrical radial line oc is the axis of symmetry of wavy cross-section curve, the first curve and the
Two curves are symmetrical about symmetrical radial line oc, say as a example by the first curve of wavy cross-section curve
Bright, the first curve by the edge radial line oa of inscribed circle and symmetrical radial line oc, the circular arc ac of inscribed circle and
Circumscribed circular arc jl surrounds, circular arc ac and the circumscribed circular arc jl halved radial line ob of inscribed circle
Decile, the first curve is made up of the first circular arc ah, the first straight line hi and the second circular arc ij, footpath, edge
The included angle B of line oa and decile radial line ob is equal with the angle C of decile radial line ob and symmetrical radial line oc.
First circular arc ah is tangential on an a respectively with inscribed circle and decile radial line ob and some h, f are edge
Point and fh on radial line oa are perpendicular to decile radial line ob, and the length of line segment af and fh is equal to the first circle
The radius r1 of arc ah, i.e. meets sinB=r1/ (R1-r1), i.e. r1=R1/ (1/sinB+1)；
Second circular arc ij is tangential on a j respectively with circumcircle and decile radial line ob and some i, g are symmetrical
Point and gi on radial line oc are perpendicular to decile radial line ob, and the length of line segment gi and gj is equal to the second circle
The radius r2 of arc ij, i.e. meets sinC=r2/ (R2+r2), i.e. r2=R2/ (1/sinC-1).With wave
Second curve shape of the first curve symmetric of tee section curve can refer to above-mentioned shape, the most superfluous at this
State.Be radially the radial direction of cyclone cylinder-like structure, i.e. inscribed circle and circumscribed radial direction.
There is the cyclone of above-mentioned wavy shaped configuration, the air velocity distribution speed in oblique flow passage can be made more
Add uniformly, be conducive to improving further stability, completeness and the efficiency of burning.
Preferably, inducer can be identical with the axial height of outlet section, and i.e. cyclone is from 1/2nd
Starting at axial height, its 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, waveform
Folder between the circular arc of the inducer import that structural undulations cross section curve is corresponding with this wavy shaped configuration
Angle, as it is shown in figure 5, the wavy cross-section curve 4,5,6 of same wavy shaped configuration various location
Between the circular arc 7 of the inducer import corresponding from this wavy shaped configuration, there is different angle, wherein, ripple
The windup-degree of shape wave cross section curve is gradually increased along downstream direction according to a regularity of distribution, it is preferable that
This regularity of distribution is linear distribution, and as shown in Figure 6, the wavy cross-section of the wavy shaped configuration port of export is bent
The windup-degree of line be E, E be the maximum twist angle of the wavy cross-section curve of wavy shaped configuration.
The axial height of wavy shaped configuration is that the windup-degree of the wavy cross-section curve of H* position is
D=H*/H × E, H are the distance between the extremely outlet of the axial height of cyclone, i.e. import.
As shown in Figure 7 and Figure 8, wherein axial distance between wavy cross-section curve 4 and 5, ripple
Axial distance between shape wave cross section curve 5 and 6 is identical, and being H1 and H1=H/4, H is eddy flow
The axial height of device, the axial distance between wavy cross-section curve 6 and circular arc 7 is H2, and
H2=H/2, from the linear distribution rule of above-mentioned windup-degree, the torsion of wavy cross-section curve 6
Angle is E/2, and the windup-degree of wavy cross-section curve 5 is 3E/4, wavy cross-section curve 4
Windup-degree is E, as it is shown in figure 9, wavy cross-section curve 4,5,6 and all same shapes
The curved surface 8 of wavy cross-section shaped form waviness structure.
The cyclone of the embodiment of the present invention, by regulating the torsion of wavy shaped configuration wavy cross-section curve
Angle, thus it is possible to vary the track of reacting fluid along the circumferential direction rotary motion, reacting fluid flow field speed
Change therewith, in order to the mating of flame combustion speed and reacting fluid flow field speed is better achieved.
In another embodiment of the present invention, it is provided that a kind of injection apparatus for burner, example
Such as nozzle, it includes above-mentioned cyclone, inner layer cylinder 9 and outer layer cylinder 10, as shown in figure 13,
Cyclone is arranged between inner layer cylinder 9 and outer layer cylinder 10, after gas enters nozzle, at oblique flow
In passage axially movable while the most along the circumferential direction move, outlet after spraying produce eddy flow effect,
When cyclone is for the gaseous mixture of fuel and air, under the effect of oblique flow passage, jet expansion meeting
Producing low regime, after ignition, flame combustion speed is Jun Heng with the flow field speed of gaseous mixture, permissible
Preventing the flame-out and generation of flame pulsation phenomenon, improve the stability of burning, low regime also makes unburned
Burning gaseous mixture backflow completely, the gaseous mixture of backflow continues to participate in burning, improves the completeness of burning
And efficiency.Meanwhile, the port of export of wavy shaped configuration has tooth-shape structure, divides inside and outside cyclone
When not being passed through fuel and air, fuel and air fully can blend under the effect of tooth-shape structure, and
Reduce friction loss, improve the stability of burning, completeness and efficiency, compared to not having profile of tooth
The structure of structure, also reduces the weight of nozzle.
It should be noted that in accompanying drawing or description text, the implementation not illustrating or describing,
It is form known to a person of ordinary skill in the art in art, is not described in detail.Additionally,
The above-mentioned definition to each element is not limited in various concrete structures, the shape mentioned in embodiment, this
It can be changed or replace, such as by field those of ordinary skill simply:
(1) wavy shaped configuration can also use other to construct, as long as identical function can be completed i.e.
Can；
(2) demonstration of the parameter comprising particular value can be provided herein, but these parameters are without definite etc.
In corresponding value, but analog value can be similar in acceptable error margin or design constraint；
(3) the direction term mentioned in embodiment, such as " on ", D score, "front", "rear", " left ",
" right " etc., are only the directions with reference to accompanying drawing, are not used for limiting the scope of the invention；
(4) above-described embodiment can based on design and the consideration of reliability, being mixed with each other collocation use or
Using with other embodiment mix and match, the technical characteristic in i.e. different embodiments can be with independent assortment shape
Become more embodiment.
In sum, the present invention provide cyclone, inside and outside it formed oblique flow passage, gas by
Inducer flows to the direction of outlet section, and gas flows through the oblique flow passage of inducer laggard inlet/outlet section,
Air-flow in oblique flow passage axially movable while the most along the circumferential direction move, and sprayed by outlet section
Cyclone, thus produce eddy flow effect.When cyclone is for the gaseous mixture of fuel and air, tiltedly
Under the effect of circulation road, gaseous mixture cyclone outlet can produce low regime, and after ignition, flame fires
Burn speed Jun Heng with the flow field speed of gaseous mixture, be possible to prevent the flame-out and generation of flame pulsation phenomenon,
Improving the stability of burning, low regime also makes unburned gaseous mixture completely reflux, the mixing of backflow
Gas continues to participate in burning, improves completeness and the efficiency of burning.Meanwhile, outlet section wavy shaped configuration
The port of export there is tooth-shape structure, when each leading into fuel and air inside and outside cyclone, except tool
Having outside above-mentioned swirl injection effect, fuel and air fully can blend under the effect of tooth-shape structure,
And reduce friction loss, improve the stability of burning, completeness and efficiency, compared to not having tooth
The structure of shape structure, also reduces the weight of cyclone.The first curve and second by radial symmetric are bent
The wavy cross-section curve of line composition, can make the air velocity distribution speed in oblique flow passage more uniform,
Be conducive to improving further stability, completeness and the efficiency of burning.By regulation wavy shaped configuration ripple
The windup-degree of shape wave cross section curve, thus it is possible to vary the track of reacting fluid along the circumferential direction rotary motion,
Reacting fluid flow field speed changes therewith, in order to flame combustion speed and reacting fluid stream are better achieved
The coupling of field rate.
Particular embodiments described above, is carried out the purpose of the present invention, technical scheme and beneficial effect
Further describe, be it should be understood that the foregoing is only the present invention specific embodiment and
, be not limited to the present invention, all within the spirit and principles in the present invention, that is done any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. one kind has eddy flow concurrently, sprays and the cyclone of blending effect, it is characterised in that including:
Inducer and outlet section；
Described inducer the most gradually transits to outlet section, and described outlet section is by multiple wavy shaped configuration
Circumferentially arrangement forms, and forms oblique flow passage (2), described ripple inside and outside described wavy shaped configuration
The port of export (3) of shape wave structure has tooth-shape structure.
2. cyclone as claimed in claim 1, it is characterised in that described wavy shaped configuration is along axle
To the wavy cross-section curve of various location, there is same shape, the waveform of described various location
The windup-degree of cross section curve increases gradually in a downstream direction, and the waveform of the most all positions is cut
Surface curve forms the curved surface (8) of wavy shaped configuration, is formed inside and outside the curved surface of described wavy shaped configuration
Oblique flow passage (2).
3. cyclone as claimed in claim 1, it is characterised in that described tooth-shape structure is monodentate
Structure, bidentate structure or many toothings.
4. cyclone as claimed in claim 1, it is characterised in that the profile of described tooth-shape structure
For sinusoidal wave form, triangle, tetragon or the tetragon of band chamfering.
5. cyclone as claimed in claim 2, it is characterised in that the import (1) of described inducer
Having circular cross-section curve, each section of circular arc of described circular cross-section curve the most gradually transits to institute
State a wavy shaped configuration of outlet section.
6. cyclone as claimed in claim 2, it is characterised in that the ripple of described various location
The windup-degree of shape wave cross section curve is gradually increased along downstream direction according to linear distribution rule.
7. cyclone as claimed in claim 6, it is characterised in that the ripple of described various location
The windup-degree of shape wave cross section curve is H*/H × E, and wherein, H is the axial height of cyclone, E
For the windup-degree of the wavy cross-section curve of the wavy shaped configuration port of export, H* is the ripple of various location
The axial height of shape wave cross section curve.
8. cyclone as claimed in claim 7, it is characterised in that the ripple of described wavy shaped configuration
Shape wave cross section curve is tangent with inscribed circle and circumcircle, and it includes the first curve and the second curve, described
First curve is by the edge radial line (oa) of described inscribed circle and symmetrical radial line (oc), the circle of inscribed circle
Arc (ac) and circumscribed circular arc (j1) surround, the circular arc (ac) of described inscribed circle and circumscribed
Circular arc (j1) halved radial line (ob) decile, described first curve include the first circular arc (ah),
One straight line (hi) and the second circular arc (ij), described first circular arc (ah) and inscribed circle and decile radial line
(ob) tangent, the first straight line overlaps with decile radial line (ob), and described second circular arc (ij) is with outer
The circle of contact and decile radial line (ob) are tangent, and the second curve and the first curve are right about symmetrical radial line (oa)
Claim.
9. cyclone as claimed in claim 8, it is characterised in that described first circular arc (ah)
Radius r1=R1/ (1/sinB+1), wherein, R1 is inscribed circle radius, and B is edge radial line (oa)
Angle with decile radial line (ob)；The radius r2=R2/ (1/sinC-1) of described second circular arc (ij),
Wherein, R2 is circumcircle radius, and C is the angle of decile radial line (ob) and symmetrical radial line (oc).
10. an injection apparatus, it is characterised in that including: weigh any one of claim 1 to 9
Cyclone, inner layer cylinder (9) and outer layer cylinder (10) described in profit requirement, described cyclone is arranged
Between inner layer cylinder (9) and outer layer cylinder (10).
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| CN201610371831.9A CN106016358B (en) | 2016-05-30 | 2016-05-30 | A kind of cyclone having both eddy flow, injection and blending effect |
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| CN201610371831.9A CN106016358B (en) | 2016-05-30 | 2016-05-30 | A kind of cyclone having both eddy flow, injection and blending effect |
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| WO2018133292A1 (en) * | 2017-01-22 | 2018-07-26 | 中国科学院工程热物理研究所 | Nozzle with adjustable inner and outer flow channel equivalence ratios, 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 |
| CN114321976A (en) * | 2021-12-13 | 2022-04-12 | 中国船舶重工集团公司第七0三研究所 | Bidirectional staggered injection double-channel torsion cyclone |
| 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 |
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| WO2024116588A1 (en) * | 2022-11-30 | 2024-06-06 | 三菱重工航空エンジン株式会社 | Fuel nozzle and gas turbine engine |
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