CN107956748A - 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
- CN107956748A CN107956748A CN201711268160.4A CN201711268160A CN107956748A CN 107956748 A CN107956748 A CN 107956748A CN 201711268160 A CN201711268160 A CN 201711268160A CN 107956748 A CN107956748 A CN 107956748A
- Authority
- CN
- China
- Prior art keywords
- guide vane
- diversion unit
- unit blade
- adjustable
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000004927 fusion Effects 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
- 244000228957 Ferula foetida Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/50—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow
- F04D29/503—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of adjustable diversion unit blade and centrifugal compressor, it is characterized in that, including preposition guide vane and postposition guide vane and adjustable diversion unit blade that they are spliced；Driving device and rotation axis are each provided with the preposition guide vane and postposition guide vane；The driving device is used to control corresponding guide vane to rotate along rotation axis；The adjustable diversion unit blade is evenly distributed on the exit of centrifugal compressor, forms annular.The adjustable diversion unit blade adjustments angle bigger in outlet proposed by the present invention, can meet to adjust the needs of angle is very big when compressor rotates forward adverse current；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, reduce the work(that compressor consumes, improve flow stability and the functional reliability of IPU.
Description
Technical field
The present invention relates to a kind of adjustable diversion unit blade and centrifugal compressor.
Background technology
Advanced combinations power set (IPU) by traditional auxiliary power unit (APU) and emergency power unit (EPU) height
Fusion, using same combustion chamber and turbine part so that IPU more compact structures, volume smaller, weight are lighter, successfully should
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, when sustainer occurs before take-off
During failure, additionally it is possible to the emergency power of backup is provided within a short period of time, is landed the airliner safely.In military fighter aircraft, transport
The field such as machine, helicopter, large-sized civil passenger plane, private business airplane can obtain extensive use.
Advanced combinations power set (IPU) are auxiliary power unit (APU) and emergency power unit (EPU) fusion, are adopted
With two kinds of operating modes, both functions are 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 drive turbine, remaining high pressure draught can inversely flow through turbine drive by the rotating compressor of rated speed (just
Turn adverse current), prevent that compressor air blast idle running and compressor lose at IPU IC Intake Valve Closes (not allowing outflow to enter IPU devices)
Surely.
Even if the throttling arrangement 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.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of adjustable diversion unit blade and centrifugation pressure
Mechanism of qi, when compressor rotates forward adverse current under EPU patterns, the air-flow angle of attack that inverted draft enters compressor active wheel reduces, and reduces
Flow separation, and hope for inverted draft can to gas compressor moving blade produce promote torque so that compressor rotate forward adverse current when, power consumption
Reduced with vibration.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
A kind of adjustable diversion unit blade, it is 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
Leave the gap being freely rotated for blade in the place of connecing；It is each provided with driving on the preposition guide vane and postposition guide vane
Device and rotation axis；The driving device is used to control corresponding guide vane to rotate along rotation axis.
A kind of foregoing adjustable diversion unit blade, it is characterized in that, the preposition guide vane and postposition guide vane are spelled
The setting angle of what is be connected into the be arranged on diversion unit blade in exit is adjustable.
A kind of foregoing adjustable diversion unit blade, it is characterized in that, preposition guide vane length in flow direction is whole
The a quarter of a diversion unit blade, postposition guide vane length in flow direction account for whole diversion unit blade four/
Three.
A kind of foregoing adjustable diversion unit blade, it is characterized in that, the rotation axis is located at preposition guide vane, postposition is led
Flow the centre of blade；The position of the rotation axis cause preposition guide vane, postposition guide vane rotate when not with miscellaneous part
Generation mechanical interference.
A kind of centrifugal compressor with adjustable diversion unit blade, it is 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 with postposition guide vane along respective rotation axis, 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 foregoing centrifugal compressor with adjustable diversion unit blade, it is 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 foregoing centrifugal compressor with adjustable diversion unit blade, it is characterized in that, the centrifugal compressor should
In the combination power device merged for height or there are in the device that centrifugal compressor rotates forward counter-current flow state.
The beneficial effect that the present invention is reached：Compared with the adjustable diversion unit blade centrifugal compressor in traditional outlet, this
The adjustable diversion unit blade adjustments angle bigger in outlet proposed is invented, exit guide blade installation and adjustment angle, can be with up to 120 °
Meet to adjust the needs of angle is very big when compressor rotates forward adverse current；Compared with the compressor on traditional IPU, adjustable water conservancy diversion is exported
The centrifugal-flow compressor of combined blade, the air-flow for reducing inverted draft into compressor active wheel when compressor rotates forward adverse current are attacked
Angle, reduces flow separation, reduces the work(that compressor consumes, improves flow stability and the functional reliability of IPU.
Brief 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 implication of reference numeral in figure：
1- postposition guide vanes, the preposition guide vanes of 2-, 3- compressor blade and blades, 4- gaps, 5,6- rotation axis.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiments are only used for clearly illustrating the present invention
Technical solution, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
In the prior art, gap very little between compressor blade and blade and guide vane, if being placed on rotation axis from blade
Leading edge remotely, significantly regulation blade angle, it will so that guide vane and movable vane collide, if rotation axis installed
Inadequate close to blade inlet edge, bearing intensity.
Therefore on the basis of the centrifugal compressor that Traditional IP U is used, the adjustable outlet water conservancy diversion group that the present invention designs is introduced
Hing straps.Compared to the centrifugal compressor of Traditional IP U, in structure mainly the non-adjustable guide vane of compressor is changed to combine it is adjustable
Blade, 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
Driven by each automatic drive device and rotated around the shaft respectively, achieve the purpose that to adjust exit guide blade established angle.Use and stay in junction
There is certain interval, rotation axis is separately mounted on two guide vanes, and 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 combined, rotation angle requirement is realized.
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.Do not collided mutually between guide vane and movable vane piece, and guide vane
On the basis of, the guide vane of compressor is adjusted angle and much increase, angle when can meet to rotate forward adverse current needed for guide vane
Degree change 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 during 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 that compressor 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 present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of adjustable diversion unit blade, it is 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
Leave the gap being freely rotated for blade in place；Driving dress is each provided with the preposition guide vane and postposition guide vane
Put and rotation axis；The driving device is used to control corresponding guide vane to rotate along rotation axis.
2. a kind of adjustable diversion unit blade according to claim 1, it is characterized in that, the preposition guide vane and postposition
The setting angle of what guide vane was spliced into the be arranged on diversion unit blade in exit is adjustable.
3. a kind of adjustable diversion unit blade according to claim 1, it is characterized in that, the preposition guide vane is flowing to
Upper length is a quarter of whole diversion unit blade, and postposition guide vane length in flow direction accounts for whole diversion unit blade
3/4ths.
4. a kind of adjustable diversion unit blade according to claim 1, it is characterized in that, the rotation axis is located at preposition water conservancy diversion
The centre of blade, postposition guide vane；The position of the rotation axis causes when preposition guide vane, postposition guide vane rotate not
Mechanical interference occurs with miscellaneous part.
5. a kind of centrifugal compressor of the adjustable diversion unit blade with described in claim 1-4 any one, it is 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 rotation axis, each is adjustable diversion unit leaf
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 put, is combined into the new adjustable diversion unit blade of the different circle of established angle.
6. a kind of centrifugal compressor with adjustable diversion unit blade according to claim 5, it is 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, it is characterized in that, it is described from
Heart compressor is applied in the combination power device of height fusion or there are the device that centrifugal compressor rotates forward counter-current flow state
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268160.4A CN107956748B (en) | 2017-12-05 | 2017-12-05 | Adjustable guide combined blade and centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268160.4A CN107956748B (en) | 2017-12-05 | 2017-12-05 | Adjustable guide combined blade and centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107956748A true CN107956748A (en) | 2018-04-24 |
| CN107956748B CN107956748B (en) | 2024-04-30 |
Family
ID=61963232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711268160.4A Active CN107956748B (en) | 2017-12-05 | 2017-12-05 | Adjustable guide combined blade and centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956748B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810351A (en) * | 2022-04-12 | 2022-07-29 | 西安热工研究院有限公司 | Gas turbine system coupled with energy storage system and adjustable in compression flow and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3356289A (en) * | 1964-05-14 | 1967-12-05 | Hispano Suiza Sa | Supersonic compressors of the centrifugal or axial flow and centrifugal types |
| DE2502986A1 (en) * | 1975-01-25 | 1976-07-29 | Gutehoffnungshuette Sterkrade | Adjustment system for blades of a turbine compressor - with separate adjustment for each row of blade wheels through a crown wheel and gear system |
| US20050123397A1 (en) * | 2003-12-03 | 2005-06-09 | Mcardle Nathan J. | Compressor diffuser |
| JP2007309299A (en) * | 2006-05-22 | 2007-11-29 | Toyota Motor Corp | Centrifugal compressor with variable diffuser |
| WO2016127241A1 (en) * | 2015-02-10 | 2016-08-18 | Kevin Allan Dooley Inc. | Two-way flow control device, associated systems and methods |
| CN106574632A (en) * | 2014-06-26 | 2017-04-19 | 通用电气公司 | Inlet guide vanes system |
| CN207609615U (en) * | 2017-12-05 | 2018-07-13 | 南京航空航天大学 | A kind of adjustable diversion unit blade and centrifugal compressor |
-
2017
- 2017-12-05 CN CN201711268160.4A patent/CN107956748B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3356289A (en) * | 1964-05-14 | 1967-12-05 | Hispano Suiza Sa | Supersonic compressors of the centrifugal or axial flow and centrifugal types |
| DE2502986A1 (en) * | 1975-01-25 | 1976-07-29 | Gutehoffnungshuette Sterkrade | Adjustment system for blades of a turbine compressor - with separate adjustment for each row of blade wheels through a crown wheel and gear system |
| US20050123397A1 (en) * | 2003-12-03 | 2005-06-09 | Mcardle Nathan J. | Compressor diffuser |
| JP2007309299A (en) * | 2006-05-22 | 2007-11-29 | Toyota Motor Corp | Centrifugal compressor with variable diffuser |
| CN106574632A (en) * | 2014-06-26 | 2017-04-19 | 通用电气公司 | Inlet guide vanes system |
| WO2016127241A1 (en) * | 2015-02-10 | 2016-08-18 | Kevin Allan Dooley Inc. | Two-way flow control device, associated systems and methods |
| CN207609615U (en) * | 2017-12-05 | 2018-07-13 | 南京航空航天大学 | A kind of adjustable diversion unit blade and centrifugal compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810351A (en) * | 2022-04-12 | 2022-07-29 | 西安热工研究院有限公司 | Gas turbine system coupled with energy storage system and adjustable in compression flow and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107956748B (en) | 2024-04-30 |
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