CN207609615U - A kind of adjustable diversion unit blade and centrifugal compressor - Google Patents
A kind of adjustable diversion unit blade and centrifugal compressor Download PDFInfo
- Publication number
- CN207609615U CN207609615U CN201721672387.0U CN201721672387U CN207609615U CN 207609615 U CN207609615 U CN 207609615U CN 201721672387 U CN201721672387 U CN 201721672387U CN 207609615 U CN207609615 U CN 207609615U
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- China
- Prior art keywords
- guide vane
- diversion unit
- unit blade
- adjustable
- blade
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- 230000004308 accommodation Effects 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model discloses a kind of adjustable diversion unit blade and centrifugal compressors, characterized in that including preposition guide vane and postposition guide vane and adjustable diversion unit blade that they are spliced；It is each provided with driving device and rotary shaft on the preposition guide vane and postposition guide vane；The driving device is rotated for controlling corresponding guide vane along rotary shaft；The adjustable diversion unit blade is evenly distributed on the exit of centrifugal compressor, forms annular.The utility model proposes the adjustable diversion unit blade adjustments angle bigger in outlet, can meet compressor rotate forward adverse current when adjust the prodigious demand of angle；Compared with the compressor on traditional combination power device, export the centrifugal-flow compressor of adjustable diversion unit blade, reduce the air-flow angle of attack that inverted draft when compressor rotates forward adverse current enters compressor active wheel, reduce flow separation, so that the work(that compressor consumes is reduced, improves the functional reliability of flow stability and IPU.
Description
Technical field
The utility model is related to a kind of adjustable diversion unit blade and centrifugal compressors.
Background technology
Advanced combinations power plant (IPU) by traditional auxiliary power unit (APU) and emergency power unit (EPU) height
Fusion, using the same combustion chamber and turbine part so that IPU more compact structures, volume smaller, weight are lighter, successfully answer
For latest generation fighter plane, and as the development hot spot of various countries' aviation industry.IPU has the spy for not depending on ground-support equipment
Point starts sustainer, provides mobile system detection and safeguard required auxiliary power, before take-off when sustainer occurs
When failure, additionally it is possible to which the emergency power for providing backup within a short period of time lands the airliner safely.In military fighter aircraft, transport
Machine, helicopter, the fields such as large-sized civil passenger plane, private business airplane can obtain extensive use.
Advanced combinations power plant (IPU) is auxiliary power unit (APU) and emergency power unit (EPU) fusion, is adopted
With two kinds of operating modes, the two function is taken into account.Under APU operating modes, the IPU courses of work and the basic phase of gas-turbine unit
Together, air enters combustion chamber after compressor compresses, and fuel oil forms high-temperature high-pressure fuel gas promotion turbine after spraying into combustion chambers burn
Rotation, turbine drive compressor to rotate and export shaft work to Accessory Gear Box, motor and/or load compressor.In EPU patterns
Under, the high pressure tank that aircraft carries supplies high-pressure air source to combustion chamber, and most of high pressure draught burns to form high pressure with fuel oil
High-temperature fuel gas drives turbine, remaining high pressure draught that can inversely flow through the compressor of turbine drive rotated by rated speed (just
Turn adverse current), prevent compressor air blast idle running and compressor at IPU IC Intake Valve Closes (outflow is not allowed to enter IPU devices) from losing
Surely.
Even if the throttling sets such as well-designed import opening and closing guide vane, outlet throttling baffle in compressor import and export position,
But due to compressor rotate forward adverse current when, from blower outlet guide vane inversely flow into compressor active wheel air-flow angle and blade it is several
What angle substantial deviation, can cause many influences to compressor itself vibration, wasted work, steady working condition etc., become scientific research work
The technological difficulties of author.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of adjustable diversion unit blade and from
Heart compressor, when compressor rotates forward adverse current under EPU patterns, the air-flow angle of attack that inverted draft enters compressor active wheel reduces,
Flow separation is reduced, and hope for inverted draft to generate gas compressor moving blade promotion torque so that when compressor rotates forward adverse current,
Power consumption and vibration reduce.
In order to realize above-mentioned target, the utility model adopts the following technical scheme：
A kind of adjustable diversion unit blade, characterized in that including preposition guide vane and postposition guide vane；It is described preposition
Guide vane and postposition guide vane can be spliced into diversion unit blade；The diversion unit blade is complete foliaceous, is spelled
There are the gaps being freely rotated for blade at the place of connecing；It is each provided with driving on the preposition guide vane and postposition guide vane
Device and rotary shaft；The driving device is rotated for controlling corresponding guide vane along rotary shaft.
A kind of adjustable diversion unit blade above-mentioned, characterized in that the preposition guide vane and postposition guide vane are spelled
The setting angle being arranged in the diversion unit blade in exit being connected into is adjustable.
A kind of adjustable diversion unit blade above-mentioned, characterized in that the preposition guide vane is whole in the upper length of flow direction
The a quarter of a diversion unit blade, postposition guide vane the upper length of flow direction account for entire diversion unit blade four/
Three.
A kind of adjustable diversion unit blade above-mentioned, characterized in that the rotary shaft is located at preposition guide vane, postposition is led
Flow the centre of blade；The position of the rotary shaft make preposition guide vane, postposition guide vane rotation when not with other component
Mechanical interference occurs.
A kind of centrifugal compressor with adjustable diversion unit blade, characterized in that the adjustable diversion unit blade is equal
The even exit for being distributed in centrifugal compressor forms annular；The preposition guide vane of each adjustable diversion unit blade
After being rotated along respective rotary shaft with postposition guide vane, the postposition guide vane of each is adjustable diversion unit blade can be with
The splicing of the adjacent or preposition guide vane of one, interval or another the adjustable diversion unit blade for being spaced two, is combined into peace
Fill the new adjustable diversion unit blade of the different circle in angle.
A kind of centrifugal compressor with adjustable diversion unit blade above-mentioned, characterized in that the adjustable diversion unit
Before and after blade rotary splicing, the exit guide blade setting angle amplitude of accommodation is 120 °.
A kind of centrifugal compressor with adjustable diversion unit blade above-mentioned, characterized in that the centrifugal compressor is answered
In the combination power device merged for height or there are in the device that centrifugal compressor rotates forward counter-current flow state.
The advantageous effect that the utility model is reached：With traditional adjustable diversion unit blade centrifugal compressor phase in outlet
Than, the utility model proposes the adjustable diversion unit blade adjustments angle bigger in outlet, exit guide blade installation and adjustment angle is reachable
120 °, it can meet when compressor rotates forward adverse current and adjust the prodigious demand of angle；Compared with the compressor on traditional IPU, go out
The centrifugal-flow compressor of mouthful adjustable diversion unit blade reduces inverted draft when compressor rotates forward adverse current and enters compressor work
The air-flow angle of attack of wheel reduces flow separation, so that the work(that compressor consumes is reduced, improves the reliable operation of flow stability and IPU
Property.
Description of the drawings
Fig. 1 is guide vane splicing schematic diagram；
Fig. 2 is guide vane Principles of Regulation schematic diagram；
Centrifugal compressor guide vane schematic three dimensional views when Fig. 3 is normal air inlet；
Fig. 4 is centrifugal compressor guide vane schematic three dimensional views when rotating forward adverse current.
The meaning of reference numeral in figure：
1- postposition guide vanes, the preposition guide vanes of 2-, 3- compressor blade and blades, the gaps 4-, 5,6- rotary shafts.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and the scope of protection of the utility model cannot be limited with this.
In the prior art, gap very little between compressor blade and blade and guide vane, if being placed on rotary shaft from blade
Leading edge remotely, significantly regulation blade angle, it will so that guide vane and movable vane collide, if rotary shaft installed
Close to blade inlet edge, bearing intensity is inadequate.
Therefore on the basis of the centrifugal compressor that Traditional IP U is used, the adjustable outlet guide of the utility model design is introduced
Flow combined blade.Compared to the centrifugal compressor of Traditional IP U, mainly the non-adjustable guide vane of compressor is changed to combine in structure
Adjustable vane, guide vane are combined into an entirety using two sections of splicings.
As shown in Figure 1, adjustable outlet diversion unit blade is made of postposition guide vane 1 and preposition guide vane 2, and
It is respectively driven by each automatic drive device and is rotated around the shaft, achieve the purpose that adjust exit guide blade established angle.It uses and stays in junction
There are certain interval, rotary shaft to be separately mounted on two guide vanes, the power that such bearing is born will greatly reduce, can be with
Meet intensity requirement；While guide vane carries out splicing with adjacent blades after rotation and is combined, and realizes rotation angle requirement.
When rotating forward adverse current, after postposition guide vane 1 turns an angle respectively with preposition guide vane 2, then divide again
Splicing is not carried out with other guide vanes to be combined.It is not collided mutually between guide vane and movable vane piece and guide vane
On the basis of, so that the guide vane of compressor is adjusted angle and much increase, the angle needed for guide vane when rotating forward adverse current can be met
Degree variation requires.
As shown in Figures 3 and 4, before and after adjustable diversion unit blade rotary splicing, exit guide blade setting angle amplitude of accommodation energy
Enough reach 120 °.
When compressor rotates forward adverse current, by the setting angle for adjusting blower outlet guide vane so that compressor is inverse
The air-flow angle and blade geometry angular deviation for inversely flowing into compressor active wheel when stream from blower outlet guide vane reduce, and reduce
The inverted draft flow and compressor power consumption of compressor improve combination power device IPU efficiencies, stability and reliability.
In the present embodiment, adjustable diversion unit blade shares 24, is respectively denoted as the initial position of postposition guide vane
1', 2'...24', after rotation position be 1 ", 2 " ... 24 ".The initial position of preposition guide vane is denoted as 1*, 2*...24*, turns
Position is 1**, 2**...24** after dynamic.This 48 blades are rotated clockwise respectively, postrotational 2 " with 1** splits, 3 "
With 2** splits, and so on, 1 " with 24** splits, and can verify and will not collide between each blade.Leaf after rotation
Piece position meets compressor and rotates forward water conservancy diversion under counter-flow pattern as shown in Fig. 2, thereby realize the adjusting of guide vane wide-angle
Blade angle demand.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
The scope of protection of the utility model is also should be regarded as into deformation.
Claims (7)
1. a kind of adjustable diversion unit blade, characterized in that including preposition guide vane and postposition guide vane；It is described preposition to lead
Stream blade and postposition guide vane can be spliced into diversion unit blade；The diversion unit blade is complete foliaceous, splicing
There are the gaps being freely rotated for blade at place；Driving dress is each provided on the preposition guide vane and postposition guide vane
It sets and rotary shaft；The driving device is rotated for controlling corresponding guide vane along rotary shaft.
2. a kind of adjustable diversion unit blade according to claim 1, characterized in that the preposition guide vane and postposition
What guide vane was spliced into be arranged the diversion unit blade in exit setting angle it is adjustable.
3. a kind of adjustable diversion unit blade according to claim 1, characterized in that the preposition guide vane is flowing to
Upper length is a quarter of entire diversion unit blade, and postposition guide vane accounts for entire diversion unit blade in the upper length of flow direction
3/4ths.
4. a kind of adjustable diversion unit blade according to claim 1, characterized in that the rotary shaft is located at preposition water conservancy diversion
The centre of blade, postposition guide vane；When the position of the rotary shaft makes preposition guide vane, postposition guide vane rotate not
Mechanical interference occurs with other component.
5. a kind of centrifugal compressor with the adjustable diversion unit blade described in claim 1-4 any one, characterized in that
The adjustable diversion unit blade is evenly distributed on the exit of centrifugal compressor, forms annular；Each described adjustable water conservancy diversion
After the preposition guide vane and postposition guide vane of combined blade are rotated along respective rotary shaft, each is adjustable diversion group hinge
The postposition guide vane of piece can be with adjacent or one, interval or before being spaced two another adjustable diversion unit blade
Guide vane splicing is set, the new adjustable diversion unit blade of the different circle of established angle is combined into.
6. a kind of centrifugal compressor with adjustable diversion unit blade according to claim 5, characterized in that it is described can
Before and after adjusting diversion unit blade rotary splicing, the exit guide blade setting angle amplitude of accommodation is 120 °.
7. a kind of centrifugal compressor with adjustable diversion unit blade according to claim 6, characterized in that it is described from
Heart compressor is applied in the combination power device of height fusion or there are the devices that centrifugal compressor rotates forward counter-current flow state
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672387.0U CN207609615U (en) | 2017-12-05 | 2017-12-05 | A kind of adjustable diversion unit blade and centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672387.0U CN207609615U (en) | 2017-12-05 | 2017-12-05 | A kind of adjustable diversion unit blade and centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609615U true CN207609615U (en) | 2018-07-13 |
Family
ID=62797436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721672387.0U Withdrawn - After Issue CN207609615U (en) | 2017-12-05 | 2017-12-05 | A kind of adjustable diversion unit blade and centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956748A (en) * | 2017-12-05 | 2018-04-24 | 南京航空航天大学 | A kind of adjustable diversion unit blade and centrifugal compressor |
-
2017
- 2017-12-05 CN CN201721672387.0U patent/CN207609615U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956748A (en) * | 2017-12-05 | 2018-04-24 | 南京航空航天大学 | A kind of adjustable diversion unit blade and centrifugal compressor |
| CN107956748B (en) * | 2017-12-05 | 2024-04-30 | 南京航空航天大学 | Adjustable guide combined blade and centrifugal compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180713 Effective date of abandoning: 20240430 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180713 Effective date of abandoning: 20240430 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |