CN109630279A - Porous atomizing plasma body fuel nozzle - Google Patents
Porous atomizing plasma body fuel nozzle Download PDFInfo
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- CN109630279A CN109630279A CN201910062320.2A CN201910062320A CN109630279A CN 109630279 A CN109630279 A CN 109630279A CN 201910062320 A CN201910062320 A CN 201910062320A CN 109630279 A CN109630279 A CN 109630279A
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- Prior art keywords
- aviation kerosine
- central electrode
- cavity
- atomizer
- insulating layer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/264—Ignition
- F02C7/266—Electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Plasma Technology (AREA)
Abstract
The present invention provides a kind of porous atomizing plasma body fuel nozzle, which includes: cavity one (11), ring cathode (12), two air inlets (13), central electrode installation opening (14), aviation kerosine import (15), aviation kerosine atomizer (16), cyclone (17), cavity two (18), central electrode window (21) and long stick-like insulating layer (22).The present invention effectively separates shoe cream room and region, has not only had the advantages of sliding arc sparking mode, but also improves the reliability of such igniter, may be used as the electric ignition device of aero-engine.
Description
Technical field
The present invention relates to plasma igniting fields, and in particular to a kind of porous atomizing plasma body fuel nozzle.
Background technique
Currently, aero-engine and the igniter of ATR combined engine are mostly electric detonator, igniting agent, spark plug；Electric detonation
That there are safeties is poor for pipe and igniting agent igniting, difficult the shortcomings that realizing repeatedly starting, and common spark plugs are lighted a fire, and there are low temperature down-firings
The general disadvantage of reliability.
It repeatedly lights a fire and reuses for the igniting reliability for improving aero-engine and ATR combined engine, realization
Function, plasma-ignition technique are a kind of effective approach；Sliding arc is applied in terms of igniting, igniting can be effectively expanded
Efficiency of combustion and igniting reliability are improved in boundary；But sliding arc plasma igniter exist be difficult to by pipeline road with put
The separated problem of electrode.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of porous atomizing plasma body fuel nozzle, comprising: cavity one
11,12, two air inlets 13 of ring cathode, central electrode installation opening 14, aviation kerosine import 15, aviation kerosine atomizer 16,
Cyclone 17, cavity 2 18, central electrode window 21 and long stick-like insulating layer 22；Wherein
Ring cathode 12, is divide into upper part and lower part, and upper part is the bell mouth shape outwardly opened, and the top is bell-mouthed
Longitudinal profile be it is trapezoidal, trapezoidal upper bottom is than lower bottom width；The generally hollow cylinder in the lower part of ring cathode 12, the lower part cylinder
The bell-mouthed lower end dimension of inner and outer diameters in upper end and top is all identical, the lower end closed of lower part cylinder, forms closed end, closed end
There is through-hole in center, the through-hole formed central electrode installation opening 14, the size of central electrode installation opening 14 just with the stick-like insulating layer of length
22 size matching, is inserted into ring cathode 12 convenient for long stick-like insulating layer 22 by central electrode installation opening 14, that is, middle electrocardio
The diameter of pole installation opening 14 is identical as the outer diameter of long stick-like insulating layer 22；At the cylinder adjacent upper portions horn mouth of lower part, cyclic annular yin
Pole 12 forms outwardly directed one section of pipeline, which is aviation kerosine import 15, and aviation coal is thus entered for aviation kerosine
Oil fogger 16；Ring cathode 12 is integrally formed；
Long stick-like insulating layer 22, is inserted into ring cathode 12 from bottom to top from central electrode installation opening 14, extends always
To at substantially lower part cylinder and the bell-mouthed boundary line in top, the elongated stick-like central electrode window of assembly in long stick-like insulating layer 22
21, central electrode window 21 extends up at plane locating for lower part cylinder and horn mouth intersection, that is, central electrode window 21 with
Long stick-like 22 upper surface of insulating layer flushes, and central electrode window 21 stretches out one section from the lower end of the stick-like insulating layer 22 of length downwards, uses
In the anode of connection sliding arc power；The longitudinal axes coincident of long stick-like insulating layer 22 and central electrode window 21, central electrode
Window 21 is tightly wrapped by the stick-like insulating layer 22 of length, is in close contact state；
Cyclone 17 is arranged in the lower part of lower part column body, but deposits with closed end at regular intervals；Cyclone 17 encloses
It is arranged around the stick-like insulating layer 22 of length, for incoming air to be converted to rotational flow air；
Cavity 1 is formed between cyclone 17 and aviation kerosine atomizer 16, for passing through rotational flow air；
Aviation kerosine atomizer 16 is located at the top of lower part column body, substantially open column shape, supreme bottom.Aviation
The upper end of kerosene atomizer 16 substantially place is at lower part cylinder and the bell-mouthed boundary line in top, in the side of aviation kerosine atomizer 16
Array-like fine hole is arranged in wall；Aviation kerosine atomizer 16 is fixedly connected by its upper/lower terminal with ring cathode 12, this is solid
Determine connection request leakproofness, that is, 16 upper/lower terminal of aviation kerosine atomizer and ring cathode 12 do not stay any hole, to guarantee
Aviation kerosine from aviation kerosine import 15 can be stored temporarily in ring-shaped cavity 2 18, and can only pass through aviation kerosine
Array-like fine hole on 16 side wall of atomizer enters in aviation kerosine atomizer 16；
Ring-shaped cavity 2 18 is formed between aviation kerosine atomizer 16 and ring cathode 12, for being connected to aviation coal
Oil inlet 15 and cavity 1, aviation kerosine enter from aviation kerosine import 15, flow through ring-shaped cavity 2 18, pass through aviation kerosine
The fine hole that atomizer 16 is arranged will be atomized aviation kerosine and spray to cavity 1；
Two air inlets 13 are pneumatic interface around centrally disposed electrode installation opening 14, convey gas for connection
With cavity 1, central symmetry of two air inlets 13 about central electrode installation opening 14 will be two air inlets on closed end
Mouth 13 punches；
Aviation kerosine import 15 is used to be connected to nozzle body and oil pipeline.
In one embodiment of the invention, the cross-sectional shape of long stick-like insulating layer 22 is center symmetric figure.
In one particular embodiment of the present invention, aviation kerosine import 15, air inlet 13, aviation kerosine atomizer 16 with
Nozzle body is using welded connecting.
In one embodiment of the invention, entire nozzle body wall thickness is 1~4mm；Wherein, one 11 cross-sectional area of cavity
For 100~300mm2, it is highly 30~100mm；12 iiared port angle of ring cathode is 5~60 °, highly for 10~
30mm；In two air inlets 13, single inlet -duct area is 27~135mm2；14 3.5~8mm of aperture of central electrode installation opening；Boat
Empty 15 1~6mm of bore of kerosene import；16 height of aviation kerosine atomizer is 10~40mm, is less than one 11 height of cavity, thickness
For 1~1.5mm, outer diameter is 10~18mm；The thickness of annular cavity 2 18, i.e., air interlayer with a thickness of 1~1.5mm；Rotation
Stream 17 height of device is 8~17mm, is less than one 11 height of cavity；21 diameter of central electrode window is 0.5~2mm, is highly greater than length
The stick-like about 5~20mm of insulating layer 22, the difference in height are the length that central electrode window 21 extends downwardly long stick-like insulating layer 22；
The internal diameter of long stick-like 22 section annulus of insulating layer is 0.5~2mm, and outer diameter is 3.5~8mm, is highly greater than one 11 height 25 of cavity
~35mm, the difference in height are the length that central electrode window 21 extends downwardly cavity 1.
In one particular embodiment of the present invention, entire nozzle body wall thickness is 2mm；Wherein, one 11 cross section of cavity
Product 201mm2, height 60mm；30 ° of 12 iiared port angle of ring cathode, height 17.30mm；In two air inlets 13, individually
Inlet -duct area 51mm2；14 aperture 4mm of central electrode installation opening；15 bore of aviation kerosine import is 4mm；Aviation kerosine atomization
Device 16 height 20mm, thickness 1mm, outer diameter 15mm；The thickness 1mm of annular cavity 2 18；17 height 16mm of cyclone；Middle electrocardio
Pole window 21 diameter 1mm, difference in height 10mm；The internal diameter 1mm of long stick-like 22 section annulus of insulating layer, outer diameter 4mm, difference in height
30mm。
In one embodiment of the invention, set fine hole aperture is 0.1 on 16 side wall of aviation kerosine atomizer
~0.2mm, these apertures are distributed along height and even circumferential, and in height, hole count is 1~8, and circumferentially hole count is 3~12.
In one particular embodiment of the present invention, set fine hole aperture on 16 side wall of aviation kerosine atomizer
0.1mm, these apertures are distributed along height and even circumferential, and hole count 6 in height, circumferentially hole count is uniformly distributed for 6, i.e., 6 × 6.
A kind of course of work of above-mentioned porous atomizing plasma body fuel nozzle is also provided, specifically: aviation kerosine passes through
Aviation kerosine import 15 enter cavity 2 18, through aviation kerosine atomizer 16 atomization after, into cavity 1 with by two into
The rotational flow air mixing that port 13 and cyclone 17 generate；After central electrode window 21 powers on, under the action of eddy flow, in
Heart electrode window 21 and ring cathode 12 form sliding arc, and contact with the gas mixture of process, are lighted or are cracked.
Porous atomizing plasma body fuel nozzle of the invention effectively separates pipeline road and discharge electrode, both has
The advantages of sliding arc sparking mode, and increase insulating properties and safety；The present invention can effectively expand ignition limit, improve combustion
Burn efficiency and igniting reliability.
Detailed description of the invention
Fig. 1 schematically shows the structural schematic diagram of the porous atomizing plasma body fuel nozzle of the present invention；
Fig. 2 schematically shows the structures of the porous atomizing plasma body fuel nozzle aviation kerosine atomizer of the present invention to show
It is intended to.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution of the present invention is further described in more detail；In the accompanying drawings, same or similar label from beginning to end
Indicate same or similar element or element with the same or similar functions；Described embodiment is that a part of the invention is real
Example is applied, instead of all the embodiments；The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining this
Invention, and be not considered as limiting the invention；Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention；Below with reference to attached
The embodiment of the present invention is described in detail in figure.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", " top bottom ", "inner", "outside" is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, and be constructed and operated in a specific orientation, therefore should not be understood as protecting model to the present invention
The limitation enclosed.
In an embodiment of the present invention, nozzle body includes: cavity 1, ring cathode 12, two air inlets 13, center
Electrode installation opening 14, aviation kerosine import 15, aviation kerosine atomizer 16, cyclone 17, cavity 2 18, central electrode window 21
With the stick-like insulating layer 22 of length；As shown in Figure 1, ring cathode 12 is divide into upper part and lower part, upper part is the horn mouth outwardly opened
Shape, the bell-mouthed longitudinal profile in the top be it is trapezoidal, trapezoidal upper bottom is than lower bottom width；The lower part of ring cathode 12 is generally hollow
Cylinder, the bell-mouthed lower end dimension of inner and outer diameters in the upper end and top of the lower part cylinder is all identical, the lower end closed of lower part cylinder,
Closed end is formed, there is through-hole in closed end center, which forms central electrode installation opening 14, the size of central electrode installation opening 14
It is just matched with the size of the stick-like insulating layer 22 of length, cyclic annular yin is inserted by central electrode installation opening 14 convenient for the stick-like insulating layer 22 of length
In pole 12, that is, the diameter of central electrode installation opening 14 is identical as the outer diameter of long stick-like insulating layer 22；In lower part cylinder adjacent upper portions
At horn mouth, ring cathode 12 forms outwardly directed one section of pipeline, which is aviation kerosine import 15, is used for aviation kerosine
Thus enter aviation kerosine atomizer 16；Ring cathode 12 is integrally formed.
Long stick-like insulating layer 22 is inserted into ring cathode 12 from bottom to top from central electrode installation opening 14, is extended to big
It causes at lower part cylinder and the bell-mouthed boundary line in top, the elongated stick-like central electrode window 21 of assembly in long stick-like insulating layer 22,
Central electrode window 21 extends up at plane locating for lower part cylinder and horn mouth intersection, and central electrode window 21 upwardly extends
To at plane locating for lower part cylinder and horn mouth intersection, that is, central electrode window 21 is flushed with long stick-like 22 upper surface of insulating layer,
Central electrode window 21 stretches out one section from the lower end of the stick-like insulating layer 22 of length downwards, for connecting the anode of sliding arc power；It is long
The longitudinal axes coincident of stick-like insulating layer 22 and central electrode window 21, central electrode window 21 by the stick-like insulating layer 22 of length tightly
It wraps, is in close contact state；The cross-sectional shape of long stick-like insulating layer 22 can be circle, be also possible to rectangle or other in
Heart symmetric figure.
The lower part of column body in lower part is disposed with cyclone 17, and cyclone 17 is in the lower part of lower part column body, but
It is deposited with closed end at regular intervals；Cyclone 17 is arranged around long stick-like insulating layer 22, for incoming air to be converted to eddy flow
Air forms cavity 1, for passing through rotational flow air between cyclone 17 and aviation kerosine atomizer 16.
The top of column body in lower part is disposed with substantially open column shape, the aviation kerosine atomizer 16 of supreme bottom, boat
The upper end substantially place of empty kerosene atomizer 16 is at lower part cylinder and the bell-mouthed boundary line in top, in aviation kerosine atomizer 16
Array-like fine hole is arranged in side wall；Aviation kerosine atomizer 16 is for example welded by its upper/lower terminal and ring cathode 12, should
Welding requirements leakproofness, that is, 16 upper/lower terminal of aviation kerosine atomizer and ring cathode 12 weld extremely, do not stay any hole, with
Guarantee that the aviation kerosine from aviation kerosine import 15 can be stored temporarily in ring-shaped cavity 2 18, and aviation can only be passed through
Array-like fine hole on 16 side wall of kerosene atomizer enters in aviation kerosine atomizer 16, aviation kerosine atomizer 16 and ring
Ring-shaped cavity 2 18 is formed between shape cathode 12, aviation kerosine enters from aviation kerosine import 15, flows through ring-shaped cavity 2 18, leads to
The fine hole for crossing the setting of aviation kerosine atomizer 16 will be atomized aviation kerosine and spray to cavity 1.
Cavity 2 18 is for being connected to aviation kerosine import 15 and cavity 1.
The setting of 14 surrounding of central electrode installation opening (for the sake of simplicity, only shows an air inlet there are two air inlet 13 in Fig. 1
13) mouth, is being closed for connection conveying gas and cavity 1, central symmetry of the air inlet 13 about central electrode installation opening 14
It to be punched on mouth end for two air inlets 13；Air inlet 13 can be, for example, hollow steel pipe, in fact, all kinds of pneumatic interfaces all may be used
Using.
Nozzle body is connect by aviation kerosine import 15 with oil pipeline, is connect by air inlet 13 with admission line；
Preferably, aviation kerosine import 15, air inlet 13, aviation kerosine atomizer 16 and nozzle body are using welded connecting.
As shown in Fig. 2, set fine hole aperture is 0.1~0.2mm on 16 side wall of aviation kerosine atomizer, preferably
0.1mm, these apertures are distributed along height and even circumferential, and in height, hole count is 1~8, and circumferentially hole count is 3~12, preferably high
Hole count 6 is spent, circumferentially hole count is uniformly distributed for 6, i.e., 6 × 6；Aviation kerosine atomizer 16 under this layout, which can effectively improve, to be come
Flow air and aviation kerosine, by sliding electricity caused by the air of breakdown central electrode 2 and 12 horn mouth inner wall of ring cathode
The contact area of arc improves igniting reliability and efficiency of combustion.
As shown in figure, entire nozzle body wall thickness is 1~4mm, preferably 2mm；Wherein, one 11 cross-sectional area of cavity is
100~300mm2, it is highly 30~100mm, preferred cross sectional area 201mm2, height 60mm；12 iiared port angle of ring cathode
Degree is 5~60 °, is highly 10~30mm, preferably 30 ° of iiared port angle, height 17.30mm；It is single in two air inlets 13
A inlet -duct area is 27~135mm2, preferably 51mm2；Central electrode installation opening 14 3.5~8mm of aperture, preferably 4mm；Aviation kerosine
15 1~6mm of bore of import, preferably bore are 4mm；16 height of aviation kerosine atomizer is 10~40mm, is less than cavity one
11 height, with a thickness of 1~1.5mm, outer diameter is 10~18mm, and preferably height is 20mm, with a thickness of 1mm, outer diameter 15mm；Annulus
The thickness of shape cavity 2 18, i.e., air interlayer with a thickness of 1~1.5mm, preferably 1mm；17 height of cyclone is 8~17mm, small
In one 11 height of cavity, preferably 16mm；21 diameter of central electrode window is 0.5~2mm, is highly greater than long stick-like insulating layer 22 about
5~20mm, preferably diameter are 1mm, difference in height 10mm, the difference in height be central electrode window 21 extend downwardly it is long it is stick-like absolutely
The length of edge layer 22；The internal diameter of long stick-like 22 section annulus of insulating layer is 0.5~2mm, and outer diameter is 3.5~8mm, is highly greater than chamber
One 11 25~35mm of height of body, preferably internal diameter is 1mm, and outer diameter 4mm, difference in height 30mm, which is central electrode
Window 21 extends downwardly the length of cavity 1.
The course of work of nozzle of the present invention is that aviation kerosine enters cavity 2 18 by aviation kerosine import 15, through aviation
After kerosene atomizer 16 is atomized, mixed into cavity 1 with the rotational flow air generated by two air inlets 13 and cyclone 17
It closes；After central electrode window 21 powers on, under the action of eddy flow, central electrode window 21 and ring cathode 12 are formed and are slided
Arc, and contacted with the gas mixture of process, it is lighted or is cracked, can effectively expand ignition limit, improve efficiency of combustion
With igniting reliability.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention；Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (8)
1. a kind of porous atomizing plasma body fuel nozzle, comprising: cavity one (11), ring cathode (12), two air inlets
(13), central electrode installation opening (14), aviation kerosine import (15), aviation kerosine atomizer (16), cyclone (17), cavity two
(18), central electrode window (21) and long stick-like insulating layer (22)；It is characterized in that
Ring cathode (12), is divide into upper part and lower part, and upper part is the bell mouth shape outwardly opened, and the top is bell-mouthed vertical
To section be it is trapezoidal, trapezoidal upper bottom is than lower bottom width；The generally hollow cylinder in lower part of ring cathode (12), the lower part cylinder
The bell-mouthed lower end dimension of inner and outer diameters in upper end and top is all identical, the lower end closed of lower part cylinder, forms closed end, closed end
There is through-hole in center, which forms central electrode installation opening (14), and the size of central electrode installation opening (14) is just stick-like absolutely with length
The size of edge layer (22) matches, and passes through central electrode installation opening (14) insertion ring cathode (12) convenient for long stick-like insulating layer (22)
In, that is, the diameter of central electrode installation opening (14) is identical as the outer diameter of long stick-like insulating layer (22)；In lower part cylinder adjacent upper portions
At horn mouth, ring cathode (12) forms outwardly directed one section of pipeline, which is aviation kerosine import (15), is used for aviation
Thus kerosene enters aviation kerosine atomizer (16)；Ring cathode (12) is integrally formed；
Long stick-like insulating layer (22), is inserted into ring cathode (12) from bottom to top from central electrode installation opening (14), prolongs always
It reaches at substantially lower part cylinder and the bell-mouthed boundary line in top, the elongated stick-like central electrode of assembly in long stick-like insulating layer (22)
Window (21), central electrode window (21) extend up at plane locating for lower part cylinder and horn mouth intersection, that is, central electrode
Window (21) is flushed with long stick-like insulating layer (22) upper surface, and central electrode window (21) is downwards from the stick-like insulating layer of length (22)
Lower end stretches out one section, for connecting the anode of sliding arc power；Long stick-like insulating layer (22) is vertical with central electrode window (21)
It is overlapped to axis, central electrode window (21) is tightly wrapped by the stick-like insulating layer of length (22), is in close contact state；
Cyclone (17) is arranged in the lower part of lower part column body, but deposits with closed end at regular intervals；Cyclone (17) encloses
It is arranged around the stick-like insulating layer of length (22), for incoming air to be converted to rotational flow air；
Cavity one (11) is formed between cyclone (17) and aviation kerosine atomizer (16), for passing through rotational flow air；
Aviation kerosine atomizer (16) is located at the top of lower part column body, substantially open column shape, supreme bottom.Aviation coal
The upper end substantially place of oil fogger (16) is at lower part cylinder and the bell-mouthed boundary line in top, in aviation kerosine atomizer (16)
Array-like fine hole is arranged in side wall；Aviation kerosine atomizer (16) connects by the way that its upper/lower terminal and ring cathode (12) are fixed
It connects, this, which is fixedly connected, requires leakproofness, that is, aviation kerosine atomizer (16) upper/lower terminal does not stay any with ring cathode (12)
Hole, to guarantee that the aviation kerosine from aviation kerosine import (15) can be stored temporarily in ring-shaped cavity two (18), and
It can only be entered in aviation kerosine atomizer (16) by the array-like fine hole on aviation kerosine atomizer (16) side wall；
Ring-shaped cavity two (18) is formed between aviation kerosine atomizer (16) and ring cathode (12), for being connected to aviation
Kerosene import (15) and cavity one (11), aviation kerosine enter from aviation kerosine import (15), flow through ring-shaped cavity two (18), lead to
The fine hole for crossing aviation kerosine atomizer (16) setting will be atomized aviation kerosine and spray to cavity one (11)；
Two air inlets (13), centrally disposed electrode installation opening (14) surrounding, is pneumatic interface, conveys gas for connection
With cavity one (11), central symmetry of two air inlets (13) about central electrode installation opening (14) will be two on closed end
A air inlet (13) punching；
Aviation kerosine import (15), is used to be connected to nozzle body and oil pipeline.
2. porous atomizing plasma body fuel nozzle as described in claim 1, wherein growing the cross section of stick-like insulating layer (22)
Shape is center symmetric figure.
3. porous atomizing plasma body fuel nozzle as described in claim 1, wherein aviation kerosine import (15), air inlet
(13), aviation kerosine atomizer (16) and nozzle body are using welded connecting.
4. porous atomizing plasma body fuel nozzle as described in claim 1, wherein entire nozzle body wall thickness is 1~4mm；
Wherein, cavity one (11) cross-sectional area is 100~300mm2, it is highly 30~100mm；Ring cathode (12) iiared port angle
Degree is 5~60 °, is highly 10~30mm；In two air inlets (13), single inlet -duct area is 27~135mm2；Central electrode
Installation opening (14) 3.5~8mm of aperture；Aviation kerosine import (15) 1~6mm of bore；Aviation kerosine atomizer (16) is highly
10~40mm is less than cavity one (11) height, and with a thickness of 1~1.5mm, outer diameter is 10~18mm；Annular cavity two (18)
Thickness, i.e., air interlayer with a thickness of 1~1.5mm；Cyclone (17) is highly 8~17mm, is less than cavity one (11) height；In
Heart electrode window (21) diameter is 0.5~2mm, is highly greater than long stick-like insulating layer (22) about 5~20mm, during which is
Heart electrode window (21) extends downwardly the length of long stick-like insulating layer (22)；The internal diameter of long stick-like insulating layer (22) section annulus is
0.5~2mm, outer diameter are 3.5~8mm, are highly greater than cavity one (11) 25~35mm of height, which is central electrode window
Mouth (21) extends downwardly the length of cavity one (11).
5. porous atomizing plasma body fuel nozzle as claimed in claim 4, wherein entire nozzle body wall thickness is 2mm；Its
In, cavity one (11) cross-sectional area 201mm2, height 60mm；30 ° of iiared port angle of ring cathode (12), height
17.30mm；In two air inlets (13), single inlet -duct area 51mm2；Central electrode installation opening (14) aperture 4mm；Aviation kerosine
Import (15) bore is 4mm；Aviation kerosine atomizer (16) height 20mm, thickness 1mm, outer diameter 15mm；Annular cavity two
(18) thickness 1mm；Cyclone (17) height 16mm；Central electrode window (21) diameter 1mm, difference in height 10mm；It is long stick-like exhausted
The internal diameter 1mm, outer diameter 4mm, difference in height 30mm of edge layer (22) section annulus.
6. porous atomizing plasma body fuel nozzle as described in claim 1, wherein on aviation kerosine atomizer (16) side wall
Set fine hole aperture is 0.1~0.2mm, these apertures are distributed along height and even circumferential, in height, hole count is 1~
8, circumferentially hole count is 3~12.
7. porous atomizing plasma body fuel nozzle as claimed in claim 6, wherein on aviation kerosine atomizer (16) side wall
Set fine hole aperture 0.1mm, these apertures are distributed along height and even circumferential, hole count 6 in height, and circumferentially hole count is
6, i.e., 6 × 6 are uniformly distributed.
8. the work of the porous atomizing plasma body fuel nozzle as described in based on any one claim such as claim 1 to 7
It is that aviation kerosine enters cavity two (18) by aviation kerosine import (15) as process, is atomized through aviation kerosine atomizer (16)
Afterwards, it is mixed into cavity one (11) with the rotational flow air by two air inlets (13) and cyclone (17) generation；Central electrode
After window (21) powers on, under the action of eddy flow, central electrode window (21) and ring cathode (12) form sliding arc, and
It is contacted with the gas mixture of process, is lighted or cracked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910062320.2A CN109630279A (en) | 2019-01-17 | 2019-01-17 | Porous atomizing plasma body fuel nozzle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910062320.2A CN109630279A (en) | 2019-01-17 | 2019-01-17 | Porous atomizing plasma body fuel nozzle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765032A (en) * | 2020-06-12 | 2020-10-13 | 沈阳航空航天大学 | Sliding arc plasma-high disturbance cross structure fuel oil atomizing nozzle |
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