CN108061310A - A kind of rotational flow atomization device and with its aero-engine main chamber - Google Patents
A kind of rotational flow atomization device and with its aero-engine main chamber Download PDFInfo
- Publication number
- CN108061310A CN108061310A CN201711218143.XA CN201711218143A CN108061310A CN 108061310 A CN108061310 A CN 108061310A CN 201711218143 A CN201711218143 A CN 201711218143A CN 108061310 A CN108061310 A CN 108061310A
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- CN
- China
- Prior art keywords
- nozzle body
- rotational flow
- atomization device
- valve
- support plate
- 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.)
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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
- F23R3/38—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply comprising rotary fuel injection means
-
- 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
- F23R3/34—Feeding into different combustion zones
- F23R3/346—Feeding into different combustion zones for staged combustion
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of rotational flow atomization device and with its aero-engine main chamber.The rotational flow atomization device includes inner swirler, outer swirler, valve, support plate, spring and nozzle body；Wherein, inner swirler is connected with nozzle body；Outer swirler is connected with nozzle body；Support plate is connected with nozzle body；Sliding-rail groove, main injection jet and cap jet are provided on nozzle body；In sliding-rail groove on the inside of valve insertion nozzle body, sliding pair is formed, through hole is provided on valve；Boss is provided in support plate, between valve and support plate, spring is positioned spring by the boss in support plate, and through hole is provided on boss；Through hole on boss is opposite with the through hole on valve.The rotational flow atomization device of the application simply realizes the indoor fractional combustion of main burning, without multiple oil circuits are set, reduces oil circuit cooling difficulty, reduces structural complexity, while reduce the design requirement to oil pump.
Description
Technical field
The present invention relates to aero-engine main chamber technical fields, more particularly to a kind of rotational flow atomization device and have
Its aero-engine main chamber.
Background technology
Aero-engine main chamber flame tube head rotational flow atomization device is generally coordinated using single-stage or Multi-stage spiral device
The structure type of centrifugal pressure atomized fog jet.With the continuous development of aero engine technology, main burning room pressure is gradual
It improves, aerodynamic force enhancing, the resistance increase of oil droplet in the gas flow so that nozzle nearby more concentrate by fuel oil, causes and smolders, accumulates
The problems such as carbon, efficiency of combustion reduce.Moreover, main chamber burner inner liner is also given in increasingly strict Aircraft Engine Emissions limitation
The design of head rotational flow atomization device proposes higher requirement.
Thus, it is desirable to have a kind of technical solution is come at least one drawbacks described above for overcoming or at least mitigating the prior art.
The content of the invention
It is an object of the invention to provide a kind of rotational flow atomization device come overcome or at least mitigate the prior art at least one
A drawbacks described above.
To achieve the above object, the present invention provides a kind of rotational flow atomization device, and the rotational flow atomization device includes inward eddy
Device, outer swirler, valve, support plate, spring and nozzle body；Wherein, the inner swirler is connected with nozzle body；It is described
Outer swirler is connected with nozzle body；The support plate is connected with nozzle body；Sliding-rail groove, master are provided on the nozzle body
Spout and cap jet；In sliding-rail groove on the inside of the valve insertion nozzle body, sliding pair is formed, is provided on the valve
Through hole；Boss is provided in the support plate, between valve and support plate, spring passes through convex in support plate the spring
Platform positions, and through hole is provided on boss；Through hole on the boss is opposite with the through hole on valve.
Preferably, the number of openings on the boss is identical with the number of openings on the valve.
Preferably, the quantity of the main injection jet is multiple；The quantity of the sliding-rail groove is identical with the quantity of the main injection jet；
Each main injection jet is evenly distributed perpendicular to nozzle body surface on the nozzle body.
Preferably, the quantity of the cap jet is multiple；Each cap jet perpendicular to the nozzle body surface, and
It is evenly distributed on the nozzle body.
Preferably, the outer swirler is radial cyclone or axial type cyclone；
The swirler blades shape of the outer swirler is prismatic blade or bent blade.
Preferably, the support plate and the type of attachment of nozzle body are integrally formed for welding or 3D printing.
Preferably, the spring is provided with a row or multi-row in the radial direction in the spring.
Present invention also provides a kind of aero-engine main chamber, the aero-engine main chamber includes as above institute
The rotational flow atomization device stated.
The rotational flow atomization device of the application controls using only main injection jet to be atomized or use master simultaneously by valve
Spout and cap jet are atomized, so as to simply realize the indoor fractional combustion of main burning, more without setting
A oil circuit reduces oil circuit cooling difficulty, reduces structural complexity, while reduce the design requirement to oil pump；Pass through master
Grade and the organizational form of pre-combustion grade subregion burning are fired, improves main combustion stage fuel-oil atmozation quality and oil gas mixing effect, improves pre-burning
The local equivalent proportion of grade, the smoldering of main chamber, carbon distribution and exhaust pollution, improve main combustion during small operating mode when can effectively reduce big operating mode
Burn room combustion stability.
Description of the drawings
Fig. 1 is the structure diagram of the rotational flow atomization device of the application first embodiment.
Reference numeral：
| 1 | Inner swirler | 6 | Main injection jet |
| 2 | Outer swirler | 7 | Cap jet |
| 3 | Valve | 9 | Sliding-rail groove |
| 4 | Support plate | ||
| 5 | Spring | ||
| 8 | Nozzle body |
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
Fig. 1 is the structure diagram of the rotational flow atomization device of the application first embodiment.
Rotational flow atomization device as shown in Figure 1 include inner swirler 1, outer swirler 2, valve 3, support plate 4, spring 5 with
And nozzle body 8；Wherein, inner swirler 1 is connected with nozzle body 8；Outer swirler 2 is connected with nozzle body 8；Support plate 4 with
Nozzle body 8 connects；Sliding-rail groove 9, main injection jet 6 and cap jet 7 are provided on nozzle body 8；Valve 3 is embedded in nozzle body 8
In the sliding-rail groove 9 of inside, sliding pair is formed, through hole is provided on the valve；Boss is provided in support plate 4, spring 5 is located at
Between valve 3 and support plate 4, spring 5 is positioned by the boss in support plate 4, and through hole is provided on boss；Through hole on boss with
Through hole on valve 3 is opposite.
The rotational flow atomization device of the application controls using only main injection jet to be atomized or use master simultaneously by valve
Spout and cap jet are atomized, so as to simply realize the indoor fractional combustion of main burning, more without setting
A oil circuit reduces oil circuit cooling difficulty, reduces structural complexity, while reduce the design requirement to oil pump；Pass through master
Grade and the organizational form of pre-combustion grade subregion burning are fired, improves main combustion stage fuel-oil atmozation quality and oil gas mixing effect, improves pre-burning
The local equivalent proportion of grade, the smoldering of main chamber, carbon distribution and exhaust pollution, improve main combustion during small operating mode when can effectively reduce big operating mode
Burn room combustion stability.
Referring to Fig. 1, in the present embodiment, the number of openings on boss is identical with the number of openings on the valve.
Referring to Fig. 1, in the present embodiment, the quantity of main injection jet 6 is multiple；The quantity of sliding-rail groove 9 and the main injection jet
Quantity is identical；
Each main injection jet 6 is evenly distributed perpendicular to 8 surface of nozzle body on nozzle body 8.
Referring to Fig. 1, in the present embodiment, the quantity of cap jet 7 is multiple；
Each cap jet 7 is evenly distributed perpendicular to 8 surface of nozzle body on nozzle body 8.
Referring to Fig. 1, in the present embodiment, outer swirler 2 is radial cyclone or axial type cyclone；
The swirler blades shape of outer swirler is prismatic blade or bent blade.
Referring to Fig. 1, in the present embodiment, the type of attachment of the support plate 4 and nozzle body 8 is welding or 3D printing one
It is body formed.
Referring to Fig. 1, in the present embodiment, spring is provided with a row or multi-row in the radial direction spring.
The application is further elaborated by way of example below.It is understood that the citing is not formed pair
Any restrictions of the application.
Referring to Fig. 1, in the present embodiment, into flame tube head air respectively by inner swirler 1 and outer swirler 2 into
Enter inside burner inner liner.During small operating mode, fuel flow is smaller, and 3 forefront pressure of valve is smaller, and pressure difference is smaller before and after valve 3, spring 5
Decrement is smaller, and valve 3 is located at position shown in Fig. 1, and fuel oil enters after the atomization of cap jet 7 inside burner inner liner C at this time；Big operating mode
When, fuel flow is larger, and 3 forefront pressure of valve is larger, and pressure difference is larger before and after valve 3, and 5 decrement of spring is larger, and valve 3 ends
In the boss B tops in support plate, most of fuel oil is exported into outer swirler 2 in circular passage through main injection jet 6 at this time, with sky
Enter after gas blending atomization inside burner inner liner C, fraction fuel oil enters after the atomization of cap jet 7 inside burner inner liner C.
In the present embodiment, there was only 7 fuel feeding of cap jet, center pre-burning level work during small operating mode, pre-combustion grade is fired using diffusion
Burning form, local equivalent is higher, forms local fuel-rich combustion area, is conducive to starting and flame stabilization；Main injection jet 6 during big operating mode
With the oil spout simultaneously of cap jet 7, center pre-combustion grade and peripheral main combustion stage work at the same time, and most of fuel oil is fired by main combustion stage
It burns, outer swirler 2 exports fuel oil in circular passage and carried out a degree of blending with air, improves the atomization quality of fuel oil
With air-fuel mixture uniformity, ensure higher efficiency of combustion and relatively low pollutant emission.
In the present embodiment, valve 3 contacts the sealing realized to main injection jet 6 with nozzle body 8 using partial face, in addition,
Contact position is provided with multiple fuel galleries, can reduce heat transfer of the nozzle body 8 to valve 3 and spring 5.Under different operating modes, spray
There is fuel flow always inside mouth housing 8, so as to reduce by 8 inner body temperature of nozzle body
Present invention also provides a kind of aero-engine main chamber, the aero-engine main chamber includes as above institute
The rotational flow atomization device stated.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (8)
1. a kind of rotational flow atomization device, which is characterized in that the rotational flow atomization device includes inner swirler (1), outer swirler
(2), valve (3), support plate (4), spring (5) and nozzle body (8)；Wherein,
The inner swirler (1) is connected with nozzle body (8)；The outer swirler (2) and nozzle body (8) connect；The branch
Fagging (4) is connected with nozzle body (8)；
Sliding-rail groove (9), main injection jet (6) and cap jet (7) are provided on the nozzle body (8)；
In sliding-rail groove (9) on the inside of the embedded nozzle body (8) of the valve (3), sliding pair is formed, is provided on the valve logical
Hole；
Boss is provided on the support plate (4), the spring (5) is located between valve (3) and support plate (4), and spring (5) is logical
The boss positioning in support plate (4) is crossed, through hole is provided on boss；
Through hole on the boss is opposite with the through hole on valve (3).
2. rotational flow atomization device as described in claim 1, which is characterized in that number of openings and the valve on the boss
On number of openings it is identical.
3. rotational flow atomization device as claimed in claim 2, which is characterized in that the quantity of the main injection jet (6) is multiple；
The quantity of the sliding-rail groove (9) is identical with the quantity of the main injection jet；
Each main injection jet (6) is evenly distributed perpendicular to nozzle body (8) surface on the nozzle body (8).
4. rotational flow atomization device as claimed in claim 3, which is characterized in that
The quantity of the cap jet (7) is multiple；
Each cap jet (7) is evenly distributed perpendicular to the nozzle body (8) surface in the nozzle body (8)
On.
5. rotational flow atomization device as described in claim 1, which is characterized in that the outer swirler 2 for radial cyclone or
Person's axial type cyclone；
The swirler blades shape of the outer swirler is prismatic blade or bent blade.
6. rotational flow atomization device as described in claim 1, which is characterized in that the support plate 4 and the connection shape of nozzle body 8
Formula is integrally formed for welding or 3D printing.
7. rotational flow atomization device as described in claim 1, which is characterized in that the spring in the spring in the radial direction
It is provided with a row or multi-row.
8. a kind of aero-engine main chamber, which is characterized in that the aero-engine main chamber includes such as claim 1
Rotational flow atomization device into 7 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218143.XA CN108061310A (en) | 2017-11-28 | 2017-11-28 | A kind of rotational flow atomization device and with its aero-engine main chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218143.XA CN108061310A (en) | 2017-11-28 | 2017-11-28 | A kind of rotational flow atomization device and with its aero-engine main chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108061310A true CN108061310A (en) | 2018-05-22 |
Family
ID=62135743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711218143.XA Pending CN108061310A (en) | 2017-11-28 | 2017-11-28 | A kind of rotational flow atomization device and with its aero-engine main chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108061310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833423A (en) * | 2019-11-22 | 2021-05-25 | 中国航发商用航空发动机有限责任公司 | Combustion chamber head, central staged combustion chamber, gas turbine and carbon deposition reducing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066221A (en) * | 1990-01-09 | 1991-11-19 | Siemens Aktiengesellschaft | Fitting for joining at least one hybrid burner to apparatus for supplying a fluid fuel |
| JPH06213457A (en) * | 1993-01-19 | 1994-08-02 | Toshiba Corp | Gas turbine combustion device |
| JPH08165968A (en) * | 1994-12-14 | 1996-06-25 | Aisin Seiki Co Ltd | Fuel injection valve for direct injection engine |
| JPH10185196A (en) * | 1996-12-19 | 1998-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Prevaporization and premixing structure for liquid fuel in gas turbine combustor |
| EP1063419A2 (en) * | 1999-06-21 | 2000-12-27 | Hitachi, Ltd. | Fuel injection valve |
| US6250063B1 (en) * | 1999-08-19 | 2001-06-26 | General Electric Co. | Fuel staging apparatus and methods for gas turbine nozzles |
| JP2002061839A (en) * | 2000-08-24 | 2002-02-28 | Ishikawajima Harima Heavy Ind Co Ltd | Fuel injector for gas turbine |
| CN101684751A (en) * | 2008-09-22 | 2010-03-31 | 贵州红林机械有限公司 | Fuel cut-off valve of reheat fuel control unit of turbofan engine |
| CN104566470A (en) * | 2014-12-03 | 2015-04-29 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Distributed-flame combustion chamber head structure |
-
2017
- 2017-11-28 CN CN201711218143.XA patent/CN108061310A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066221A (en) * | 1990-01-09 | 1991-11-19 | Siemens Aktiengesellschaft | Fitting for joining at least one hybrid burner to apparatus for supplying a fluid fuel |
| JPH06213457A (en) * | 1993-01-19 | 1994-08-02 | Toshiba Corp | Gas turbine combustion device |
| JPH08165968A (en) * | 1994-12-14 | 1996-06-25 | Aisin Seiki Co Ltd | Fuel injection valve for direct injection engine |
| JPH10185196A (en) * | 1996-12-19 | 1998-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Prevaporization and premixing structure for liquid fuel in gas turbine combustor |
| EP1063419A2 (en) * | 1999-06-21 | 2000-12-27 | Hitachi, Ltd. | Fuel injection valve |
| US6250063B1 (en) * | 1999-08-19 | 2001-06-26 | General Electric Co. | Fuel staging apparatus and methods for gas turbine nozzles |
| JP2002061839A (en) * | 2000-08-24 | 2002-02-28 | Ishikawajima Harima Heavy Ind Co Ltd | Fuel injector for gas turbine |
| CN101684751A (en) * | 2008-09-22 | 2010-03-31 | 贵州红林机械有限公司 | Fuel cut-off valve of reheat fuel control unit of turbofan engine |
| CN104566470A (en) * | 2014-12-03 | 2015-04-29 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Distributed-flame combustion chamber head structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833423A (en) * | 2019-11-22 | 2021-05-25 | 中国航发商用航空发动机有限责任公司 | Combustion chamber head, central staged combustion chamber, gas turbine and carbon deposition reducing method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180522 |