CN109611890A - A kind of swirl-flow devices of three-level - Google Patents
A kind of swirl-flow devices of three-level Download PDFInfo
- Publication number
- CN109611890A CN109611890A CN201811536638.1A CN201811536638A CN109611890A CN 109611890 A CN109611890 A CN 109611890A CN 201811536638 A CN201811536638 A CN 201811536638A CN 109611890 A CN109611890 A CN 109611890A
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- China
- Prior art keywords
- swirl
- level
- flow devices
- inner liner
- burner inner
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Classifications
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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
- F23R3/28—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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
- F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
The application belongs to gas turbine swirl-flow devices design field field, and in particular to a kind of swirl-flow devices of three-level, including level-one swirl-flow devices are set in the second level swirl-flow devices of level-one swirl-flow devices periphery；Level-one swirl-flow devices are connect with fuel nozzle；And further include three swirler device, it is set in second level swirl-flow devices periphery, and connect with burner inner liner；Wherein, to introduce air into burner inner liner, which is known as return air for level-one swirl-flow devices and second level swirl-flow devices；Return air generates recirculating zone to the fuel oil materialization that will be sprayed into burner inner liner from fuel nozzle in burner inner liner；Three-level reflux unit can introduce air into burner inner liner, which is known as dilution air；Dilution air is flowed along burner inner liner inner wall, enters primary zone from the primary zone periphery of burner inner liner and rear portion.
Description
Technical field
The application belongs to gas turbine swirl-flow devices design field, and in particular to a kind of swirl-flow devices of three-level.
Background technique
It improves with the development of technology, aircraft, steamer are more more and more urgent to big promotion/power gas turbine demand, combustion
Gas-turbine obtains high thrust/power and needs high temperature rise combustor, obtains the estimated burning room temperature of the current desired high thrust/power asked
1100-1300K need to be reached by rising, and temperature rise ability has compared to existing conventional temperature rise combustion chamber to be greatly improved.
Existing gas-turbine combustion chamber mostly uses twin-stage swirl flow combustion technology, by the setting of double-cyclone device in combustion chamber fire
5 head of flame cylinder, as shown in Figure 1, double-cyclone device is made of level-one swirl-flow devices, second level swirl-flow devices；Wherein, level-one eddy flow fills
It sets and is connect with fuel nozzle 4；Second level swirl-flow devices are set in level-one swirl-flow devices periphery, and connect with burner inner liner 5；Level-one eddy flow
Device and second level swirl-flow devices introduce air into burner inner liner 5, introduce burner inner liner 5 from level-one swirl-flow devices and second level swirl-flow devices
In air the fuel oil sprayed into from fuel nozzle 4 is atomized, and in burner inner liner 5 generate recirculating zone with stablize burning.
For the temperature rise for improving combustion chamber, fuel nozzle 4 is needed to spray into more fuel oils, flame into combustion chamber flame drum 5
The raising of amount of fuel, easily causes primary zone excessively rich oil in burner inner liner 5, fuel-rich combustion is also easy to produce a large amount of carbon particle, leads in cylinder 5
Cause combustion chamber that a large amount of visible smoke is discharged, one side generates a large amount of pollutions, on the other hand causes shadow to the Stealth Fighter of equipment
It rings.
The existing combustion chamber using twin-stage swirl flow combustion technology, to overcome above-mentioned combustion chamber to generate asking for a large amount of visible smokes
Topic, the design of common use are to increase the circulation area of double-cyclone device, to increase the air introduced in burner inner liner 5, with more
More air capacities is blended with the fuel oil in burner inner liner 5, is atomized to fuel oil, and fuel-rich combustion state in burner inner liner 5 is changed.
It can satisfy the demand of combustion chamber high temperature liter to a certain extent using above-mentioned technology, but it becomes the combustibility of combustion chamber
It is bad, especially influence stability of the combustion chamber under idling rating.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
The purpose of the application is to provide a kind of swirl-flow devices of three-level, to overcome or alleviated by lacking for above-mentioned at least one aspect
It falls into.
The technical solution of the application is:
A kind of three-level form swirl-flow devices, including level-one swirl-flow devices are set in the second level rotation of level-one swirl-flow devices periphery
Flow device；Level-one swirl-flow devices are connect with fuel nozzle；
And
Further include three swirler device, is set in second level swirl-flow devices periphery, and connect with burner inner liner；
Wherein,
To introduce air into burner inner liner, which is known as return air for level-one swirl-flow devices and second level swirl-flow devices；
Return air generates reflux to the fuel oil materialization that will be sprayed into burner inner liner from fuel nozzle in burner inner liner
Area；
Three-level reflux unit can introduce air into burner inner liner, which is known as dilution air；
Dilution air is flowed along burner inner liner inner wall, enters primary zone from the primary zone periphery of burner inner liner and rear portion.
According at least one embodiment of the application, three swirler device is radial vortex device.
According at least one embodiment of the application, second level swirl-flow devices are radial vortex device.
According at least one embodiment of the application, level-one swirl-flow devices are radial vortex device.
According at least one embodiment of the application, level-one swirl-flow devices are axial rotational flow device or are beveling eddy flow dress
It sets.
At least there are following advantageous effects in the application: a kind of swirl-flow devices of three-level are provided, by setting
Three swirler device is set, the raising of combustion chamber temperature rise ability is realized, and reduces the discharge of pollutant, and which ensure that burning
The stabilization that room is burnt under idling rating.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of double-cyclone device；
Fig. 2 is the structural schematic diagram of the swirl-flow devices of three-level provided by the embodiments of the present application；
Fig. 3 is the partial structure diagram of radial vortex device；
Fig. 4 is the partial structure diagram of axial rotational flow device；
Fig. 5 is the partial structure diagram of oblique swirl-flow devices；
Wherein:
1- level-one swirl-flow devices；2- second level swirl-flow devices；3- three swirler device；4- fuel nozzle；5- burner inner liner.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that in the description of the present application, term " center ", "upper", "lower", "left", "right", "vertical",
The direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are direction based on the figure or positional relationship, this
It is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ", " third " are only used
In description purpose, it is not understood to indicate or imply relative importance.
In addition it is also necessary to explanation, in the description of the present application unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the application.
1 to Fig. 5 the application is described in further details with reference to the accompanying drawing.
A kind of three-level form swirl-flow devices, including level-one swirl-flow devices 1, are set in the second level of 1 periphery of level-one swirl-flow devices
Swirl-flow devices 2；Level-one swirl-flow devices 1 are connect with fuel nozzle 4；
And
Further include three swirler device 3, is set in 2 periphery of second level swirl-flow devices, and connect with burner inner liner 5；
Wherein,
To introduce air into burner inner liner 5, which is known as flowing back empty for level-one swirl-flow devices 1 and second level swirl-flow devices 2
Gas；
Return air and generates back will spray into the fuel oil materialization in burner inner liner 5 from fuel nozzle 4 in burner inner liner 5
Flow area；
Three-level reflux unit 3 can introduce air into burner inner liner 5, which is known as dilution air；
Dilution air is flowed along 5 inner wall of burner inner liner, enters primary zone from the primary zone periphery of burner inner liner 5 and rear portion.
It will be readily appreciated by those skilled in the art that level-one swirl-flow devices 1 and second level rotation in the swirl-flow devices of above-mentioned three-level
Stream device 2 introduces return air into burner inner liner 5, the fuel oil materialization that will be sprayed into burner inner liner 5 from fuel nozzle 4, and in flame
Recirculating zone is generated in cylinder 5, continues and remains the work of level-one swirl-flow devices and second level swirl-flow devices in existing double-cyclone device
With existing to the setting of level-one swirl-flow devices 1 and 2 corresponding construction of second level swirl-flow devices and its parameter in the swirl-flow devices of above-mentioned three-level
Consider on the basis of fully considering the structure feature of swirl-flow devices of this three-level, suitably refers to the progress of double-cyclone device.
Those skilled in the art are also appreciated that, in the swirl-flow devices of above-mentioned three-level with level-one swirl-flow devices 1 and two
The three swirler device 3 that grade swirl-flow devices 2 are equipped with, direct effect is to introduce dilution air to the inside of burner inner liner 5, not
Increase the air introduced in burner inner liner 5 in the case where expanding level-one swirl-flow devices 1 and 2 circulation area of second level swirl-flow devices, to change
The state for becoming fuel-rich combustion in burner inner liner 5, to reduce the discharge of combustion chamber visible smoke.
In addition, reasonably being set in the swirl-flow devices of above-mentioned three-level by passing through to 3 structure of three swirler device and its parameter
Meter is flowed by its dilution air introduced in burner inner liner 5 along 5 inner wall of burner inner liner, by the periphery in 5 primary zone of burner inner liner and its
Rear portion enters primary zone, is not formed in burner inner liner 2 to by level-one swirl-flow devices 1 and the introducing return air of second level swirl-flow devices 2
Reflux generate dramatic impact, i.e., introduce return air by swirl-flow devices 1 and second level swirl-flow devices 2 and realized in burner inner liner 2 pair
The fuel oil materialization sprayed into from fuel nozzle 4, and forms stable recirculating zone, has stable boundary, from can guarantee combustion chamber
The stability burnt under idling rating.
For point of air mass flow between above-mentioned level-one swirl-flow devices 1, second level swirl-flow devices 2 and its three swirler device 3
Match, the rotation direction of air-flow and its between structure matching relationship, those skilled in the art can according to above-mentioned swirl-flow devices cooperation make
Fuel nozzle 4 and its flame 5 are designed accordingly, in the design process in combination with feasible calculating and its ground experiment
It carries out, in the hope of the structural parameters that can be optimized.
In some alternative embodiments, three swirler device 3 is radial vortex device.
In some alternative embodiments, second level swirl-flow devices 2 are radial vortex device.
In some alternative embodiments, level-one swirl-flow devices 1 are radial vortex device or axial rotational flow device or are oblique
Cut swirl-flow devices.
Above-mentioned radial vortex device refers to that its intake type is radial air inlet, and axial rotational flow device refers to that its intake type is
Axial admission, oblique swirl-flow devices refer to it with the form air inlet of Off-Radial and axial direction.
Radial vortex device, axial rotational flow device, beveling swirl-flow devices, for those skilled in the art pass through frequently with eddy flow
The form of device carries out selection use as the case may be.It, can be by level-one swirl-flow devices in technical solution disclosed in the present application
1 is preferably radial vortex device, is preferably radial vortex device by second level swirl-flow devices, and be preferably by three swirler device
Radial vortex device, so that the swirl-flow devices of above-mentioned three-level are compact-sized, convenient for the connection with fuel nozzle 4 and burner inner liner 5.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the application, still, this field
Technical staff is it is easily understood that the protection scope of the application is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of application, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement is fallen within the protection scope of the application.
Claims (5)
1. a kind of swirl-flow devices of three-level, including level-one swirl-flow devices (1) are set in level-one swirl-flow devices (1) periphery
Second level swirl-flow devices (2)；The level-one swirl-flow devices (1) connect with fuel nozzle (4)；
It is characterized in that,
Further include three swirler device (3), is set in second level swirl-flow devices (2) periphery, and connect with burner inner liner (5)；
Wherein,
The level-one swirl-flow devices (1) and the second level swirl-flow devices (2), should to introduce air into the burner inner liner (5)
Air is known as return air；
The return air from the fuel nozzle (4) will spray into the fuel oil materialization in the burner inner liner (5), and described
Recirculating zone is generated in burner inner liner (5)；
The three-level reflux unit (3) can introduce air into the burner inner liner (5), which is known as dilution air；
The dilution air is flowed along the burner inner liner (5) inner wall, is entered from the primary zone periphery of the burner inner liner (5) and rear portion
The primary zone.
2. the swirl-flow devices of three-level according to claim 1, which is characterized in that
The three swirler device (3) is radial vortex device.
3. the swirl-flow devices of three-level according to claim 2, which is characterized in that
The second level swirl-flow devices (2) are radial vortex device.
4. the swirl-flow devices of three-level according to claim 3, which is characterized in that
The level-one swirl-flow devices (1) are radial vortex device.
5. the swirl-flow devices of three-level according to claim 1, which is characterized in that
The level-one swirl-flow devices (1) are axial rotational flow device or are beveling swirl-flow devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536638.1A CN109611890A (en) | 2018-12-14 | 2018-12-14 | A kind of swirl-flow devices of three-level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536638.1A CN109611890A (en) | 2018-12-14 | 2018-12-14 | A kind of swirl-flow devices of three-level |
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| CN109611890A true CN109611890A (en) | 2019-04-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345513A (en) * | 2019-07-12 | 2019-10-18 | 中国航发沈阳发动机研究所 | A kind of rotational flow atomization device of fractional combustion |
| CN110440294A (en) * | 2019-07-26 | 2019-11-12 | 中国航发沈阳发动机研究所 | A kind of flame tube head can reduce carbon distribution |
| CN110440293A (en) * | 2019-07-26 | 2019-11-12 | 中国航发沈阳发动机研究所 | A kind of flame tube head can reduce carbon distribution |
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| CN108561897A (en) * | 2017-12-27 | 2018-09-21 | 中国航发四川燃气涡轮研究院 | A kind of partly-premixed prevapourising minimum discharge combustion chamber for strengthening air-fuel mixture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110345513A (en) * | 2019-07-12 | 2019-10-18 | 中国航发沈阳发动机研究所 | A kind of rotational flow atomization device of fractional combustion |
| CN110440294A (en) * | 2019-07-26 | 2019-11-12 | 中国航发沈阳发动机研究所 | A kind of flame tube head can reduce carbon distribution |
| CN110440293A (en) * | 2019-07-26 | 2019-11-12 | 中国航发沈阳发动机研究所 | A kind of flame tube head can reduce carbon distribution |
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