CN108425708A - A kind of combined type subtracts whirlpool device structure - Google Patents
A kind of combined type subtracts whirlpool device structure Download PDFInfo
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- CN108425708A CN108425708A CN201810399023.2A CN201810399023A CN108425708A CN 108425708 A CN108425708 A CN 108425708A CN 201810399023 A CN201810399023 A CN 201810399023A CN 108425708 A CN108425708 A CN 108425708A
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- whirlpool device
- pipe free
- subtracts
- subtract
- upstream
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of combined types to subtract whirlpool device structure, including upstream rotation roulette, downstream rotation roulette, drum barrel orifice ring, Upstream section pipe free subtract whirlpool device, interlude pipe free subtracts whirlpool device, flow diverter and rotary shaft.Drum barrel hole is circumferentially evenly distributed on drum barrel orifice ring；Subtract whirlpool device structure in Upstream section and interlude arrangement pipe free, reversely at an angle, rounded corner processing is done in import for nozzle-axis and wheel disc rolling tangential, is connect with upstream and downstream wheel disc by fixing groove and screw and fixation；Outlet section arranges the flow diverter with flow deflector.The present invention can improve the negotiability in drum barrel hole；Pipe free subtracts whirlpool device structure while reducing import swirl ratio, inhibits the development of swirl ratio；Power can be extracted from rotary shaft using the flow diverter with flow deflector, stream pressure is improved, reduce the pressure loss；Simultaneously because subtracting whirlpool device using nozzle type, it can effectively reduce and subtract whirlpool device system weight, installation method is simple and reliable, improves reliability and stability.
Description
Technical field
The present invention relates to aero-engine and gas turbine internal air system design field, more particularly to one kind are multiple
It is box-like to subtract whirlpool device structure.
Background technology
With the development of aero-engine and gas turbine design technology and being constantly progressive for demand, the temperature of hot-end component
Higher and higher with thermal stress, to aero-engine internal air system designing technique, more stringent requirements are proposed.It is internal at present cold
But air is mainly drawn from machine platform of calming the anger, and is radially become a mandarin in corotation disk intracavitary after flowing through drum barrel hole, and between centers channel, conveying are passed through
To hot-end component and imports combustion gas mainstream after the functions such as completion cooling elsewhere and sealing or be discharged into air.
The pressure and temperature of cooling air directly affects its sphere of action and performance, and cold air radially enters in corotation disk chamber
Due to the conservation of angular momentum during stream, with the reduction of radius, tangential velocity speed is increasing, shows free vortex feature,
In centrifugal force, the prodigious pressure loss is resulted under the collective effect of coriolis force and frictional force, seriously restricts cooling air
Quality.The pressure loss can be effectively reduced by subtracting whirlpool device by installation.
The currently used whirlpool device that subtracts mainly has three classes：Iris type subtracts whirlpool device, and pipe free subtracts whirlpool device and tubular type subtracts whirlpool device.It is existing
A kind of tubular type to subtract whirlpool device be high radius cantilevered support structure, circular cross section conduit is circumferentially uniformly distributed, goes out the gas that drum barrel hole comes out
Stream is guided to low radial location from high radius in it, and flow performance shows as forced vortex in conduit, air-flow due to not by
The development of free vortex, reduces the pressure loss；Existing another kind tubular type subtracts the mode that whirlpool device is the support of low radius, and air-flow is from drum
It is first passed through after bore outflow after the free vortex development of a distance in reentry catheter, but air-flow is when entering conduit and entrance
Section has certain angle, air-flow to will produce the larger pressure loss during deviation, in addition, flowed out from low half diametered duct
Air velocity is larger, and 90 degree of deviations occur for flow direction after directly impacting rotary shaft, this process also will produce larger pressure
Loss；A kind of existing finned whirlpool device that subtracts is several partition boards across corotation disk chamber disk spacing, and entire disk chamber is divided into
The disconnected chamber of spacing, constraint air-flow complete the process radially to become a mandarin wherein；A kind of existing pipe free subtracts whirlpool device and uses
Cascade-type nozzle makes air-flow generate a velocity component opposite to the direction of rotation in mass flowing nozzle, reduces the work of coriolis force
With to reduce the pressure loss.
By to the similar analysis for subtracting whirlpool device structure patent, applicants have discovered that, existing patent and technology at least exist with
Lower problem：
The existing basic principle for subtracting whirlpool device is to control air-flow in the speed of corotation disk intracavitary to develop, with swirl ratio (rotating
Ratio, the ratio between flow rotation tangential speed component and rotor circumferential speed) speed characteristics are characterized, different type subtracts whirlpool device
Difference lies in the mode of control swirl ratio development is different.But there is upstream and downstream flow performances for the whirlpool device structure that subtracts of single structure
The problem of matching difference, swirl ratio of the air-flow when entrance subtracts whirlpool device structure is not ideal enough, or even becomes restraining factors, and outflow subtracts
The gas shock rotary shaft or deflector of whirlpool device are that the air-flow steering pressure loss generated also should not be underestimated；In addition to this, it manages
Formula subtracts the vibration problem of whirlpool device, and the finned weight gain problem for subtracting whirlpool device subtracts flowing caused by the device import and export mix pointed structures of whirlpool
The discharge characteristic bistable characteristic that the pressure loss and pipe free that separation generates subtract whirlpool device all seriously restricts it in engine
Application in internal air system.
Invention content
The technical problem to be solved by the present invention is to for defect involved in background technology, provide a kind of combined type
Subtract whirlpool device structure.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of combined type subtracts whirlpool device structure, including upstream rotation roulette, downstream rotation roulette, drum barrel orifice ring, Upstream section pipe free
Subtract whirlpool device, interlude pipe free subtracts whirlpool device, flow diverter and rotary shaft；
The drum barrel orifice ring, Upstream section pipe free subtract whirlpool device, interlude pipe free subtracts whirlpool device, flow diverter is by being arranged in institute within outer
It states between upstream rotation roulette, downstream rotation roulette, and drum barrel orifice ring, Upstream section pipe free subtract whirlpool device, interlude pipe free subtracts
Whirlpool device, flow diverter, upstream rotation roulette, downstream rotation roulette are coaxial；
The drum barrel orifice ring, Upstream section pipe free subtract whirlpool device, interlude pipe free subtract the both sides of whirlpool device respectively with the upstream
The internal face of rotation roulette, the internal face of downstream rotation roulette are connected；
The back side of the flow diverter and the downstream rotation roulette are connected, and another side is connected by flat key and the rotary shaft；
The rotary shaft and the flow diverter are coaxial, and several drum barrel holes are circumferentially uniformly provided on the drum barrel orifice ring.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, drum barrel hole in the drum barrel orifice ring
Shape is round or kidney ellipsoid.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, the drum barrel orifice ring is in its drum barrel hole
Neighbouring thickness is locally thinning.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, the Upstream section pipe free subtracts whirlpool device
The cross-sectional shape for subtracting nozzle in the device of whirlpool with interlude pipe free is round, rectangular, oval, any one in cascade-type.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, the Upstream section pipe free subtracts whirlpool device
Subtract in the device of whirlpool nozzle-axis and wheel disc tangentially at preset angle threshold, direction and wheel disc direction of rotation phase with interlude pipe free
Instead, angular range is 15 ~ 90 °.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, the Upstream section pipe free subtracts whirlpool device
Subtract that the quantity of nozzle in the device of whirlpool is identical, corresponds with interlude pipe free, and Upstream section pipe free subtract nozzle in the device of whirlpool and
It corresponds to the nozzle-axis coincidence that interlude pipe free subtracts whirlpool device.
Subtract the further prioritization scheme of whirlpool device structure, the inner wall of the upstream rotation roulette as a kind of combined type of the present invention
Face, which is equipped with, is respectively used to that fixed Upstream section pipe free subtracts whirlpool device, interlude pipe free subtracts the first fixing groove of whirlpool device, second solid
Determine slot, be arranged respectively corresponding on the internal face of the downstream rotation roulette for fix Upstream section pipe free subtract whirlpool device, in
Between section pipe free subtract the third fixing groove of whirlpool device, the 4th fixing groove；
The both sides that the Upstream section pipe free subtracts whirlpool device are respectively placed in the first fixing groove, third fixing groove；
The both sides that the interlude pipe free subtracts whirlpool device are respectively placed in the second fixing groove, the 4th fixing groove；
And the Upstream section pipe free subtracts whirlpool device, interlude pipe free subtract the both sides of whirlpool device respectively with the upstream rotating wheel
Disk, downstream rotation roulette are connected.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, the structural type face of the flow diverter is
It is arc-shaped.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, on the structural type face of the flow diverter
Equipped with circumferentially uniformly distributed flow deflector.
Subtract the further prioritization scheme of whirlpool device structure as a kind of combined type of the present invention, the type face of the flow deflector is straight line
Any one in type flow deflector, spiral line type flow deflector, hyperbolic-type flow deflector, logarithmic curve type flow deflector.
The present invention has the following technical effects using above technical scheme is compared with the prior art：
Combined type provided by the invention subtracts whirlpool device structure to delay swirl ratio to develop into theoretical foundation, while it is entire to take into account compressor
The pressure loss during bleed provides segmentation and subtracts whirlpool measure.By using the drum barrel hole of oval pass, can greatly improve
Negotiability and drum barrel hole exits speed circumferential direction uniformity of the air-flow at drum barrel, and the thinning drum barrel pore structure in part can be with
The growth that recirculating zone and swirl ratio that air-flow generates when by drum barrel hole are limited under the premise of not loss structure rigidity, to
The pressure loss in the stage is reduced,；Selectively arrange that pipe free subtracts whirlpool device in Upstream section, air-flow will produce when passing through nozzle
One tangential speed component opposite to the direction of rotation, there is the swirl ratio of air-flow under reduction, to inhibit the development of swirl ratio, adopt
When with plane cascade type nozzle, the pressure loss during flowing through nozzle can be reduced to the greatest extent, reduced and subtracted due to additional
The additional pressure losses that whirlpool device is brought, when using conventional circle or elliptical nozzles, introducing import rounded corner structure can
To reduce the pressure loss caused by flow separation of air-flow during subtracting whirlpool device into pipe free；By the hair of a distance
Exhibition, the swirl ratio of disk intracavitary can be risen, and the pipe free at this moment arranged by interlude subtracts whirlpool device and further constrains eddy flow
The development of ratio can be such that the swirl ratio risen reduces again, reduce partial pressure loss, and improve outlet air flow velocity
Distribution reduces the pressure loss in air-flow deviation to axial movement；The flow diverter arranged by outlet section can be such that conduit flows out
Air-flow more gently switch to axial direction from radial, and the introducing of flow deflector can further extract power from rotary shaft, right
Airflow function further increases stream pressure, improves air-flow circumferential speed part.
Subtract whirlpool measure by segmentation, reduce the pressure loss of cooling air during bleed air to greatest extent,
In addition, each section subtracts whirlpool device structure and connect with upstream and downstream turntable by bolt, simple in structure, tubular type subtracts whirlpool device using under threaded upper ends
The dual fixed form of end locating ring can effectively weaken the vibrations in the course of work, improve job stability and reliability.This
Outside, the present invention also has the characteristics of applied widely, drag-reduction effect is good, easy for installation, stable structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the sectional view of the present invention；
Fig. 3 is the matched structural schematic diagram of middle and upper reaches rotation roulette and drum barrel orifice ring of the present invention；
Fig. 4 is the structural schematic diagram of flow diverter in the present invention；
Fig. 5 a, Fig. 5 b are that locally thinning oval type drum barrel orifice ring, drum barrel orifice ring are thick for drum barrel hole ring thickness respectively in the present invention
Spend the diagrammatic cross-section of the oval type drum barrel orifice ring of local invariant；
Fig. 6 a, 6b, 6c, 6d be respectively cathetus type flow deflector of the present invention, spiral line type flow deflector, hyperbolic-type flow deflector, right
The schematic diagram of number curve type flow deflector.
In figure, the upstreams 1- rotation roulette, the first fixing grooves of 11-, the second fixing grooves of 12-, 2- Upstream section pipe frees subtract whirlpool
Device, 3- interlude pipe frees subtract whirlpool device, 4- flow diverters, 41- linear type flow deflectors, 42- spiral line type flow deflectors, and 43- is bis-
Shaped form flow deflector, 44- logarithmic curve type flow deflectors, 5- rotary shafts, 6- drum barrel orifice rings, 61- drum barrels hole ring thickness part
Constant oval type drum barrel orifice ring, the local thinning oval type drum barrel orifice ring of 62- drum barrels hole ring thickness, the downstreams 7- rotating wheel
Disk.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings：
The present invention can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.On the contrary, providing
These embodiments will give full expression to the scope of the present invention to keep the disclosure thoroughly and complete to those skilled in the art.
In the accompanying drawings, for the sake of clarity it is exaggerated component.
As shown in Figure 1, the invention discloses a kind of combined types to subtract whirlpool device structure, including upstream rotation roulette 1, downstream
Rotation roulette 7, drum barrel orifice ring 6, Upstream section pipe free subtract whirlpool device 2, interlude pipe free subtracts whirlpool device 3, flow diverter 4 and rotary shaft 5；
Drum barrel orifice ring 6, Upstream section pipe free subtract whirlpool device 2, interlude pipe free subtracts whirlpool device 3, flow diverter 4 is revolved by setting within outer in upstream
Between runner disk 1, downstream rotation roulette 7, and drum barrel orifice ring 6, Upstream section pipe free subtract whirlpool device 2, interlude pipe free subtracts whirlpool device
3, flow diverter 4, upstream rotation roulette 1, downstream rotation roulette 7 are coaxial；Drum barrel orifice ring 6, Upstream section pipe free subtract whirlpool device 2, centre
The both sides that section pipe free subtracts whirlpool device 3 are respectively connected with the internal face of the internal face of upstream rotation roulette 1, downstream rotation roulette 7；
The back side of flow diverter 4 and downstream rotation roulette 7 are connected, and another side is connected by flat key and rotary shaft 5；Rotary shaft 5 and flow diverter 4
Coaxially, several drum barrel holes are circumferentially uniformly provided on the drum barrel orifice ring 6.
Drum barrel orifice ring 6 can be designed as with 1 integral structure of upstream rotation roulette, connected by bolt with downstream rotation roulette 7
Connect, if being disposed with arterial highway in drum barrel hole both sides leads directly to labyrinth gas seals rings, ensure air-flow can smoothly enter into drum barrel hole rather than
The clearance leakage of static blade root and rotation roulette above drum barrel hole.Upstream section pipe free subtracts the circumferential uniform cloth of whirlpool device 2
It is equipped with the nozzle for swing angle of taking, nozzle inlet rounded corner reduces pressure loss when air-flow enters nozzle, exports not rounded corner,
Reduce the range in outlet return area.Nozzle cross-sectional shape is ellipse, with high exit flow in circumferential consistency and uniformly
Property.Interlude pipe free subtracts whirlpool device 3 to be fixed respectively by screw and upstream rotation roulette 1 and downstream rotation roulette 7.It is circumferential uniformly distributed
It takes the nozzle of swing angle, nozzle inlet rounded corner, outlet keeps sharp edge.Flow diverter 4 passes through flat key and positioning pin and rotary shaft 5
Connection, and fixed by screw with downstream rotation roulette 7.4 type face of flow diverter is circular arc type, and is equipped with circumferentially on its surface
The linear type flow deflector 41 of cloth.
In the embodiment of fig. 2, the oval number of perforations in oval type drum barrel orifice ring 61 and Upstream section pipe free subtract whirlpool device 2 and
The nozzle number that interlude pipe free subtracts the swing angle of taking in whirlpool device 3 is identical, and oval hole exits subtract whirlpool with Upstream section pipe free
2 nozzle inlet of device is in same circumferential position；Upstream section pipe free subtracts 2 jet expansion airflow direction of whirlpool device and interlude pipe free
Subtract 3 nozzle inlet of whirlpool device and is in the same extension line.Circumferentially uniformly distributed linear type flow deflector 41 is radially arranged.
In figure 3, the internal face of upstream rotation roulette 1 be equipped be respectively used to fixed Upstream section pipe free subtract whirlpool device 2, in
Between section pipe free subtract the first fixing groove 11 of whirlpool device 3, the second fixing groove 12, it is corresponding on the internal face of downstream rotation roulette 7
Be respectively provided with fixed Upstream section pipe free subtracts whirlpool device 2, interlude pipe free subtracts the third fixing groove of whirlpool device 3, the 4th fix
Slot；The both sides that Upstream section pipe free subtracts whirlpool device 2 are respectively placed in the first fixing groove 11, third fixing groove；Interlude pipe free subtracts
The both sides of whirlpool device 3 are respectively placed in the second fixing groove 12, the 4th fixing groove；And Upstream section pipe free subtracts whirlpool device 2, interlude without pipe
The both sides that formula subtracts whirlpool device 3 are respectively connected with upstream rotation roulette 1, downstream rotation roulette 7.First to fourth fixing groove is used for solid
Determine that Upstream section pipe free subtracts whirlpool device 2 and intermediate pipe free section subtracts whirlpool device 3, prevents from subtracting whirlpool device being under the action of the centrifugal force detached from, improve
Combined type subtracts the stability of whirlpool device structure.
Fig. 4 is the band flow deflector flow diverter schematic diagram that Fig. 1-3 embodiments use.Fig. 5 a are that drum barrel hole ring thickness is locally thinning
Oval type drum barrel orifice ring 61 schematic diagram, Fig. 5 b be drum barrel hole ring thickness local invariant oval type drum barrel orifice ring 62 part
Schematic diagram.
Fig. 6 a ~ 6d are the schematic diagram with four kinds of flow deflector type face embodiments of flow deflector flow diverter in the present invention.Water conservancy diversion in 6a
Piece is linear type, and the channel between two panels flow deflector is to shrink channel, can air-flow be guided and be accelerated, and improves Axial-running Out
Implication Velocity Field of Flow.Fig. 6 b are spiral line type face flow deflector, and type face is more smooth, and guide functions are more preferable；Fig. 6 c are hyperbolic-type
Face flow deflector, accelerating ability is more preferable when air-flow flows wherein, its pressure is improved to airflow function from axis extraction power；Fig. 6 d
For exponential type face flow deflector, the flow direction of reversing gas flow can be effectively adjusted under the conditions of large flow-rate gas stream.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Also
It should be understood that those terms such as defined in the general dictionary should be understood that with in the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the meaning of idealization or too formal.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of combined type subtracts whirlpool device structure, which is characterized in that including upstream rotation roulette（1）, downstream rotation roulette（7）, drum
Bore ring（6）, Upstream section pipe free subtract whirlpool device（2）, interlude pipe free subtract whirlpool device（3）, flow diverter（4）And rotary shaft（5）；
The drum barrel orifice ring（6）, Upstream section pipe free subtract whirlpool device（2）, interlude pipe free subtract whirlpool device（3）, flow diverter（4）By outer
It is arranged to interior in the upstream rotation roulette（1）, downstream rotation roulette（7）Between, and drum barrel orifice ring（6）, Upstream section pipe free
Subtract whirlpool device（2）, interlude pipe free subtract whirlpool device（3）, flow diverter（4）, upstream rotation roulette（1）, downstream rotation roulette（7）Together
Axis；
The drum barrel orifice ring（6）, Upstream section pipe free subtract whirlpool device（2）, interlude pipe free subtract whirlpool device（3）Both sides respectively and
The upstream rotation roulette（1）Internal face, downstream rotation roulette（7）Internal face be connected；
The flow diverter（4）The back side and the downstream rotation roulette（7）It is connected, another side passes through flat key and the rotary shaft
（5）It is connected；
The rotary shaft（5）With the flow diverter（4）Coaxially, the drum barrel orifice ring（6）Upper circumferential direction is uniformly provided with several drum barrel holes.
2. combined type according to claim 1 subtracts whirlpool device structure, which is characterized in that the drum barrel orifice ring（6）Middle drum barrel hole
Shape be round or kidney ellipsoid.
3. combined type according to claim 2 subtracts whirlpool device structure, which is characterized in that the drum barrel orifice ring（6）In its drum barrel
Thickness near hole is locally thinning.
4. combined type according to claim 1 subtracts whirlpool device structure, which is characterized in that the Upstream section pipe free subtracts whirlpool device
（2）Subtract whirlpool device with interlude pipe free（3）The cross-sectional shape of middle nozzle is round, rectangular, oval, arbitrary in cascade-type
It is a kind of.
5. combined type according to claim 1 subtracts whirlpool device structure, which is characterized in that the Upstream section pipe free subtracts whirlpool device
（2）Subtract whirlpool device with interlude pipe free（3）Middle nozzle-axis is with wheel disc tangentially at preset angle threshold, direction and wheel disc spins
Direction is on the contrary, angular range is 15 ~ 90 °.
6. combined type according to claim 5 subtracts whirlpool device structure, which is characterized in that the Upstream section pipe free subtracts whirlpool device
（2）Subtract whirlpool device with interlude pipe free（3）The quantity of middle nozzle is identical, corresponds, and Upstream section pipe free subtracts whirlpool device（2）In
Nozzle and its correspond to interlude pipe free subtract whirlpool device（3）Nozzle-axis overlap.
7. combined type according to claim 1 subtracts whirlpool device structure, which is characterized in that the upstream rotation roulette（1）It is interior
Wall surface subtracts whirlpool device equipped with fixed Upstream section pipe free is respectively used to（2）, interlude pipe free subtract whirlpool device（3）The first fixing groove
（11）, the second fixing groove, the downstream rotation roulette（7）Internal face on be arranged respectively corresponding to for fix Upstream section without
Tubular type subtracts whirlpool device（2）, interlude pipe free subtract whirlpool device（3）Third fixing groove, the 4th fixing groove；
The Upstream section pipe free subtracts whirlpool device（2）Both sides be respectively placed in the first fixing groove, third fixing groove；
The interlude pipe free subtracts whirlpool device（3）Both sides be respectively placed in the second fixing groove, the 4th fixing groove；
And the Upstream section pipe free subtracts whirlpool device（2）, interlude pipe free subtract whirlpool device（3）Both sides respectively with the upstream revolve
Runner disk（1）, downstream rotation roulette（7）It is connected.
8. combined type according to claim 1 subtracts whirlpool device structure, which is characterized in that the flow diverter（4）Structural type face
It is arc-shaped.
9. combined type according to claim 8 subtracts whirlpool device structure, which is characterized in that the flow diverter（4）Structural type face
It is equipped with circumferentially uniformly distributed flow deflector.
10. a kind of combined type according to claim 9 subtracts whirlpool device structure, which is characterized in that the type face of the flow deflector is
Linear type flow deflector（41）, spiral line type flow deflector（42）, hyperbolic-type flow deflector（43）, logarithmic curve type flow deflector（44）In
Any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399023.2A CN108425708B (en) | 2018-04-28 | 2018-04-28 | Combined vortex reducer structure |
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|---|---|---|---|
| CN201810399023.2A CN108425708B (en) | 2018-04-28 | 2018-04-28 | Combined vortex reducer structure |
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| CN108425708B CN108425708B (en) | 2023-08-01 |
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| CN110005525A (en) * | 2019-03-01 | 2019-07-12 | 南京航空航天大学 | It is a kind of to go the compressor of whirl spraying mouth to subtract vortex structure with cascade-type |
| CN110081027A (en) * | 2019-04-29 | 2019-08-02 | 南京航空航天大学 | It is a kind of to subtract whirlpool device bleed air system for the finned of compressor |
| CN110469540A (en) * | 2019-07-24 | 2019-11-19 | 南京航空航天大学 | A kind of counter-rotating compressor structure and the combined type suitable for counter-rotating compressor bleed air system subtract whirlpool device structure |
| CN112648077A (en) * | 2020-12-17 | 2021-04-13 | 北京航空航天大学 | Novel nozzle fin combined type vortex reducing system |
| CN114838008A (en) * | 2022-05-20 | 2022-08-02 | 北京航空航天大学 | Variable-angle reverse rotation nozzle vortex reduction system for radial inner flow disc cavity of gas compressor |
| CN115017838A (en) * | 2022-05-23 | 2022-09-06 | 南京航空航天大学 | Axial flow compressor radial air-entraining vortex reducer simulation method and system and storage medium |
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| US20050132706A1 (en) * | 2003-05-21 | 2005-06-23 | Masayuki Fukutani | Device for supplying secondary air in a gas turbine engine |
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|---|---|---|---|---|
| CN110005525A (en) * | 2019-03-01 | 2019-07-12 | 南京航空航天大学 | It is a kind of to go the compressor of whirl spraying mouth to subtract vortex structure with cascade-type |
| CN110081027A (en) * | 2019-04-29 | 2019-08-02 | 南京航空航天大学 | It is a kind of to subtract whirlpool device bleed air system for the finned of compressor |
| CN110469540A (en) * | 2019-07-24 | 2019-11-19 | 南京航空航天大学 | A kind of counter-rotating compressor structure and the combined type suitable for counter-rotating compressor bleed air system subtract whirlpool device structure |
| CN110469540B (en) * | 2019-07-24 | 2020-10-20 | 南京航空航天大学 | Combined type vortex reducer structure and counter-rotating compressor system adopting same |
| CN112648077A (en) * | 2020-12-17 | 2021-04-13 | 北京航空航天大学 | Novel nozzle fin combined type vortex reducing system |
| CN114838008A (en) * | 2022-05-20 | 2022-08-02 | 北京航空航天大学 | Variable-angle reverse rotation nozzle vortex reduction system for radial inner flow disc cavity of gas compressor |
| CN114838008B (en) * | 2022-05-20 | 2023-01-20 | 北京航空航天大学 | Variable-angle reverse rotation nozzle vortex reduction system for radial inner flow disc cavity of gas compressor |
| CN115017838A (en) * | 2022-05-23 | 2022-09-06 | 南京航空航天大学 | Axial flow compressor radial air-entraining vortex reducer simulation method and system and storage medium |
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| CN108425708B (en) | 2023-08-01 |
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