CN109668172A - A kind of high-speed fuel oil mixing machine of controllable pulsed eddy - Google Patents
A kind of high-speed fuel oil mixing machine of controllable pulsed eddy Download PDFInfo
- Publication number
- CN109668172A CN109668172A CN201811504367.1A CN201811504367A CN109668172A CN 109668172 A CN109668172 A CN 109668172A CN 201811504367 A CN201811504367 A CN 201811504367A CN 109668172 A CN109668172 A CN 109668172A
- Authority
- CN
- China
- Prior art keywords
- fuel oil
- mixing machine
- pulsed eddy
- blending
- counter balance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
Abstract
The invention discloses a kind of high-speed fuel oil mixing machines of controllable pulsed eddy, include: Laval nozzle, blending runner, vortex generator, counter balance pocket and stepper motor；Wherein the Laval nozzle and the blending runner constitute sprue；The mixing machine wall surface includes the counter balance pocket, the counter balance pocket air inlet and the fuel feed hole；The vortex generator includes the central rotating shaft and the triangular wedge block；The stepper motor is connected with the vortex generator by the hinge；Primary air forms supersonic flow after accelerating by the Laval nozzle, forms vortex under vortex generator effect；The counter balance pocket can prevent sprue gas overflowing；By controlling the stepper motor, the posture of the vortex generator can control, and then form controllable pulsed eddy；Fuel oil injects the blending runner by the fuel feed hole, realizes and blends with the high speed of mainstream；Mixed gas passes through mixed gas outlet outflow.The significant increase of the present invention blending efficiency of fuel oil and air.
Description
Technical field
The invention belongs to fuel oil mixing machine field more particularly to a kind of high-speed fuel oil mixing machines of controllable pulsed eddy.
Background technique
Airbreathing motor is the main power form of existing aerospace flight vehicle, and the Mixing Technology of fuel oil and air is
One of the key technology that such engine is related to.Blending efficiency directly determines the process, efficiency and stability of burning, and then certainly
Determine the performance of engine.Therefore, the design optimization of fuel oil mixing machine is most important for airbreathing motor.
The fuel oil mixing machine form that airbreathing motor uses at present mainly has cyclone, cavity, transverse jet and coaxial
Jet stream etc..Cyclone is mainly used in aero-engine, its blending efficiency with higher, but design processing is relative complex,
It is not suitable for the fuel oil blending of supersonic speed airbreathing motor yet；Cavity is suitable for the fuel oil blending of low speed, high speed, but it is mixed
Confounding is smaller, exists only in inside cavity, while the problems such as can induce combustion chamber heat sound oscillation；Transverse jet does not need physics knot
Structure, there is a biggish dilution zone, but its there are non-stationarity, cause applicable working condition limited；Coaxial jet is similar with transverse jet,
It the advantage is that the resistance of introducing is smaller, but its blending efficiency is lower.In addition, above-mentioned mixing machine form can only be specific
It works under operating condition, without adjustable, controllable feature.Thus need to optimize the form and principle of mixing machine, with
Promote the design level of airbreathing motor.
Summary of the invention
Technical problem solved by the present invention is having overcome the deficiencies of the prior art and provide a kind of height of controllable pulsed eddy
Quick burning oil mixing machine, the operating mode of controllable pulsed eddy improve the blending efficiency and applicable working condition of fuel oil mixing machine.
The object of the invention is achieved by the following technical programs: a kind of high-speed fuel oil mixing machine of controllable pulsed eddy,
It include: Laval nozzle, blending runner, vortex generator, counter balance pocket and stepper motor；Wherein, the Laval nozzle and institute
It states blending runner and constitutes sprue；The mixing machine wall surface includes the counter balance pocket, the counter balance pocket air inlet and the oil inlet
Hole；The vortex generator includes the central rotating shaft and the triangular wedge block；The stepper motor and the vortex occur
Device is connected by the hinge；Mixed gas passes through mixed gas outlet outflow.
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that in the blending runner, radial equipartition is several
The vortex generator is covered, the quantity of the stepper motor is consistent with the quantity of the vortex generator；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that the mixing machine wall surface has several described flat
Weigh chamber air inlet and several fuel feed holes；The counter balance pocket air inlet and the oil inlet hole number ratio are 0.5；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that in the counter balance pocket and the blending runner
The ratio between static pressure is 1.1~1.3；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that the fuel oil injected by the fuel feed hole and institute
The ratio of momentum for stating the air in blending runner is 10~100；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that the air inlet diameter of phi a with it is described
The ratio between Laval nozzle diameter of phi b is 8~10；The ratio between the air inlet diameter of phi a and the blending runner diameter of phi c are
0.9~1.1；The ratio between the Laval nozzle diameter of phi b and the mixed gas outlet diameter Φ d are 1.3~2；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that the fuel oil air inlet diameter of phi e with it is described
The ratio between counter balance pocket air inlet diameter of phi f is 0.1~0.3；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that mixed gas outlet length L1 with it is described
The ratio between mixed gas outlet diameter Φ d is 5~10；
In the high-speed fuel oil mixing machine of above-mentioned controllable pulsed eddy, it is preferred that the triangular wedge block length L2 with it is described
The ratio between triangular wedge block width L3 is 1~3；The triangular wedge block angle, θ is 20 °~45 °.
Further by the amplitude of control vortex generator, so that the outlet port of fuel feed hole forms pulsed eddy.
Compared with prior art, the present invention has the following advantages:
The present invention greatly shortens the blending time, improves blending efficiency, while having expanded fuel oil mixing machine
Applicable working condition.In order to shorten the blending time, mixing machine front end is designed using Laval nozzle, to accelerate to primary air；
Vortex generator is devised in mixing machine, enhances the blending of fuel oil and air using its wave system structure and vortex structure, is promoted
Blending efficiency；In addition, the present invention uses step motor control vortex generator posture, and then blending is further enhanced, opened up
Applicable working condition is opened up.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the high-speed fuel oil mixing machine of controllable pulsed eddy provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of vortex generator provided in an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the structural schematic diagram of the high-speed fuel oil mixing machine of controllable pulsed eddy provided in an embodiment of the present invention.Such as Fig. 1
Shown, the high-speed fuel oil mixing machine of the controllable pulsed eddy includes: Laval nozzle 1, blending runner 8, vortex generator 9, puts down
Weigh chamber 2 and stepper motor 3；Wherein,
Laval nozzle 1 and the blending runner 8 constitute the sprue of fuel oil mixing machine；The outlet end of Laval nozzle 1
Hinged vortex generator 9；Counter balance pocket 2 is set in mixing machine wall surface 6, and stepper motor 3 is mounted in the counter balance pocket 2 and and whirlpool
It is connected between flow-generator 9 by hinge 10, the posture of vortex generator 9 is controlled by stepper motor 3, passes through control vortex hair
The amplitude of raw device 9, so that the outlet port of fuel feed hole 5 forms pulsed eddy；Setting connects with blending runner 8 on mixing machine wall surface 6
Logical fuel feed hole 5, the fuel oil entered by fuel feed hole 5 are blended with the pulsed eddy, and obtained mixed gas passes through setting
7 outflow of mixed gas outlet after blending runner 8.
Fig. 2 is the structural schematic diagram of vortex generator provided in an embodiment of the present invention.As shown in Fig. 2, the vortex generator 9
Including central rotating shaft 11 and triangular wedge block 12；Triangular wedge block 12 by a triangle using bottom edge as the centre of gyration, return by vertex
Turn the revolving body that certain angle obtains；The bottom edge installation center shaft 11；By central rotating shaft 11 by triangular wedge block 12
It is mounted on the outlet end of Laval nozzle 1.
Primary air forms supersonic flow after accelerating by Laval nozzle 1, forms whirlpool under the effect of vortex generator 9
Stream；Air pressure in counter balance pocket 2 is higher than blending runner 8, thus it can be prevented that sprue gas overflowing, achievees the effect that sealing；It is logical
Control stepper motor 3 is crossed, can control the posture of vortex generator 9, and then form controllable pulsed eddy；Fuel oil passes through fuel feed hole
5, the blending runner 8 is injected, realizes and is blended with the high speed of mainstream；Mixed gas passes through 7 outflow of mixed gas outlet.
It wherein blends in runner 8,4~8 sets of vortex generators 9 of radial equipartition, the quantity and vortex generator of stepper motor 3
9 quantity is consistent；Mixing machine wall surface 6 has 4~6 counter balance pocket air inlet 4 and 8~12 fuel feed holes 5；Counter balance pocket 2 and MIXING FLOW
The ratio between static pressure is 1.1~1.3 in road 8；Fuel feed hole 5 inject fuel oil and blending runner 8 in air ratio of momentum be 10~
100；The ratio between air inlet diameter of phi a and Laval nozzle diameter of phi b are 8~10；Air inlet diameter of phi a and MIXING FLOW
The ratio between road diameter of phi c is 0.9~1.1；The ratio between Laval nozzle diameter of phi b and mixed gas outlet diameter Φ d are 1.3~2；Fuel oil
The ratio between air inlet diameter of phi e and counter balance pocket air inlet diameter of phi f are 0.1~0.3.
Such as Fig. 2, it is 5~10 that mixed gas, which exports the ratio between length L1 and mixed gas outlet diameter Φ d,；Triangular wedge block length L2
It is 1~3 with the ratio between triangular wedge block width L3；Triangular wedge block angle, θ is 20 °~45 °.
Embodiment described above is the present invention more preferably specific embodiment, and those skilled in the art is in this hair
The usual variations and alternatives carried out in bright technical proposal scope should be all included within the scope of the present invention.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (11)
1. a kind of high-speed fuel oil mixing machine of controllable pulsed eddy, it is characterised in that include: Laval nozzle (1), blending runner
(8), vortex generator (9), counter balance pocket (2) and stepper motor (3)；Wherein,
Laval nozzle (1) and blending runner (8) constitute the sprue of fuel oil mixing machine；The outlet of Laval nozzle (1)
Hold hinged vortex generator (9)；Counter balance pocket (2) are set in mixing machine wall surface (6), stepper motor (3) is mounted on the balance
It is connected in chamber (2) and by hinge 10 between vortex generator 9, the posture of vortex generator 9 is controlled by stepper motor 3,
And then form controllable pulsed eddy；The fuel feed hole (5) being connected to blending runner (8) is set on mixing machine wall surface (6), passes through oil inlet
The fuel oil that hole (5) enters is blended with the pulsed eddy, and obtained mixed gas passes through setting mixing after blending runner (8)
Mixed gas outlet (7) outflow.
2. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: the vortex hair
The quantity of raw device (9) is consistent with fuel feed hole (5) quantity, and circumferential uniformly distributed；The quantity of stepper motor (3) and the vortex generator
(9) quantity is consistent.
3. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: mixing machine wall surface
(6) several counter balance pocket air inlets (4) being connected to counter balance pocket are set on；The counter balance pocket air inlet (4) and the fuel feed hole (5)
Quantity ratio is 1:1.
4. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: the counter balance pocket
It (2) is 1.1~1.3 with the ratio between the interior static pressure of the blending runner (8).
5. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: by the fuel feed hole
(5) ratio of momentum of the fuel oil and the air in blending runner (8) that inject is 10~100.
6. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: air inlet is straight
The ratio between diameter Φ a and the Laval nozzle throat diameter Φ b are 8~10；The air inlet diameter of phi a and the MIXING FLOW
The ratio between road diameter of phi c is 0.9~1.1；The ratio between the Laval nozzle throat diameter Φ b and the mixed gas outlet diameter Φ d
It is 1.3~2.
7. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 3, it is characterised in that: the fuel oil air inlet
The ratio between bore dia Φ e and the counter balance pocket air inlet diameter of phi f are 0.1~0.3.
8. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: the mixed gas goes out
Mouth the ratio between length L1 and the mixed gas outlet diameter Φ d are 5~10.
9. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: the vortex hair
Raw device (9) include central rotating shaft (11) and triangular wedge block (12)；The triangular wedge block (12) is by a triangle bottom of with
While being the centre of gyration, the revolving body that vertex revolution certain angle obtains；The bottom edge installation center shaft (11)；Pass through center
Triangular wedge block (12) is mounted on the outlet end of Laval nozzle (1) by shaft (11).
10. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 9, it is characterised in that: the triangle wedge
Shape block is isosceles triangle wedge block；The ratio between the long L2 of the waist of triangle and the triangular wedge block bottom side length L3 are 1~3；It is described
Triangular wedge block angle of revolution θ is 20 °~45 °.
11. the high-speed fuel oil mixing machine of controllable pulsed eddy according to claim 1, it is characterised in that: by controlling whirlpool
The amplitude of flow-generator (9), so that the outlet port of fuel feed hole (5) forms pulsed eddy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504367.1A CN109668172B (en) | 2018-12-10 | 2018-12-10 | High-speed fuel blender of controllable pulsation vortex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504367.1A CN109668172B (en) | 2018-12-10 | 2018-12-10 | High-speed fuel blender of controllable pulsation vortex |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109668172A true CN109668172A (en) | 2019-04-23 |
| CN109668172B CN109668172B (en) | 2020-11-10 |
Family
ID=66144650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811504367.1A Active CN109668172B (en) | 2018-12-10 | 2018-12-10 | High-speed fuel blender of controllable pulsation vortex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109668172B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791661A (en) * | 1993-03-01 | 1995-04-04 | Hitachi Ltd | Burner and operation thereof |
| CN1133393A (en) * | 1994-12-24 | 1996-10-16 | Abb管理有限公司 | Combustion chamber |
| US6565321B1 (en) * | 1999-05-21 | 2003-05-20 | Vortex Holding Company | Vortex attractor |
| CN1878986A (en) * | 2003-09-05 | 2006-12-13 | 德拉文公司 | Device for stabilizing combustion in gas turbine engines |
| CN108119916A (en) * | 2016-11-30 | 2018-06-05 | 安萨尔多能源瑞士股份公司 | Vortex generator |
-
2018
- 2018-12-10 CN CN201811504367.1A patent/CN109668172B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791661A (en) * | 1993-03-01 | 1995-04-04 | Hitachi Ltd | Burner and operation thereof |
| CN1133393A (en) * | 1994-12-24 | 1996-10-16 | Abb管理有限公司 | Combustion chamber |
| US6565321B1 (en) * | 1999-05-21 | 2003-05-20 | Vortex Holding Company | Vortex attractor |
| CN1878986A (en) * | 2003-09-05 | 2006-12-13 | 德拉文公司 | Device for stabilizing combustion in gas turbine engines |
| CN108119916A (en) * | 2016-11-30 | 2018-06-05 | 安萨尔多能源瑞士股份公司 | Vortex generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109668172B (en) | 2020-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2535901C2 (en) | Swirler, method for prevention of backfire of burner at least with one swirler, and burner | |
| TWI276736B (en) | Counter swirl annular combustor | |
| CN104019465B (en) | The super combustion chamber of turbine base combined cycle engine | |
| US2607193A (en) | Annular combustion chamber with multiple notched fuel nozzles | |
| RU2430307C2 (en) | Air-fuel mix injector, combustion chamber and gas turbine engine with said injector | |
| CN101776026B (en) | Air inlet of air-breathing pulse detonation engine | |
| JP5378934B2 (en) | System and method for air-fuel mixing in a gas turbine | |
| US20070137171A1 (en) | Swirling flows and swirler to enhance pulse detonation engine operation | |
| CN108757179A (en) | Combined cycle engine and hypersonic aircraft | |
| JPH10500467A (en) | Method and apparatus for forming a turbulent fuel-air mixture in the combustion chamber of each cylinder of a valve-controlled internal combustion engine | |
| RU2645801C2 (en) | Injection system for a combustion chamber of a turbine engine, comprising an annular wall having a convergent inner cross-section | |
| JP2014181898A (en) | Systems and apparatus relating to downstream fuel and air injection in gas turbines | |
| CN103266922B (en) | Turbine stator blade with interstage combustor | |
| KR101329884B1 (en) | Fuel injector | |
| CN103835810B (en) | Acoustic liner for air-inlet nacelle of aircraft engine and aircraft engine | |
| US5918465A (en) | Flow guiding body for a gas turbine combustion chamber | |
| JPS58204952A (en) | Mixture compression and external ignition type multicylinder internal combustion engine | |
| JPH07133727A (en) | Air intake device of internal combustion engine | |
| CN106762220A (en) | Turbogenerator | |
| CN109668172A (en) | A kind of high-speed fuel oil mixing machine of controllable pulsed eddy | |
| CN209510482U (en) | Combined cycle engine | |
| US5331803A (en) | Method of obtaining a desired temperature profile in a turbine engine and turbine engine incorporating the same | |
| CN103471135A (en) | Jet-stream air suction and jet combustor | |
| CN108170961A (en) | A kind of method for improving rotation detonation engine fuel oxidant blending efficiency | |
| CN206816412U (en) | A kind of gaseous fuel engine charge pipe-line system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |