CN103437833B - Air inlet guide vane adjusting device - Google Patents
Air inlet guide vane adjusting device Download PDFInfo
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- CN103437833B CN103437833B CN201310407182.XA CN201310407182A CN103437833B CN 103437833 B CN103437833 B CN 103437833B CN 201310407182 A CN201310407182 A CN 201310407182A CN 103437833 B CN103437833 B CN 103437833B
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- servo valve
- air inlet
- electrohydraulic servo
- guide vane
- inlet guide
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Abstract
The invention discloses a kind of air inlet guide vane adjusting device, comprise electric controller, electrohydraulic servo valve and for regulating the piston component of angle of air inlet guide vane; Electric controller electrical connection electrohydraulic servo valve provides electrical input signal for electrohydraulic servo valve; Electrohydraulic servo valve is for the action of driven plunger assembly; Also comprise position sensor, position sensor detects the displacement of piston component and generates feedback signal and feeds back to electric controller, and electric controller is according to the driving signal of external world's input and feedback signal output electrical input signal. The present invention drives air inlet guide vane to carry out angle adjustment by electrohydraulic servo valve driven plunger assembly, and detect the displacement of piston component and the displacement signal of piston component is fed back to electric controller by position sensor, thereby form the closed-loop regulating system of the electrohydraulic servo valve that is subject to electric controller control, can realize the accurate adjusting to air inlet guide vane angle, accurately to control the charge flow rate of air intake duct of compressor, thus the generation of surge while avoiding compressor work.
Description
Technical field
The present invention relates to aeroengine control field, especially, relate to a kind of air inlet guide vane for aero-engine and regulate dressPut.
Background technology
The compressor of aero-engine is the important component part of turbocharger, and air is through the air intake duct of compressor, with certainInitial velocity enters the impeller of compressor, absorbs mechanical energy in impeller passage, and pressure and speed are improved a lot, and enters diffusionAfter device, pressure further raises, and reaches the object of supercharging. Under certain rotating speed, when the gas flow of compressor is reduced to necessarilyWhen degree, will there is boundary layer separation at impeller or diffuser inlet place in gas, cause gas backstreaming. Separation eddyOther parts that expand to rapidly compressor passage, there is strong vibration in air-flow, causes blade judder, and produce very largeNoise, this phenomenon becomes the surge of compressor. The operating point that occurs surge is called to pumping point, and corresponding flow is surgeFlow, has a pumping point under each rotating speed. Surge belongs to the unstable operation phenomenon of compressor, in real work, and shouldAvoid the generation of surge. Therefore the charge flow rate of compressor is carried out to the generation of fine adjustment surge while being conducive to avoid compressor work,Adjusting for compressor air inlet machine flow need to realize by the adjustment of the angle to air inlet guide vane, therefore, needs design badly a kind ofThe adjusting device of fine adjustment air inlet guide vane angle.
Summary of the invention
The object of the invention is to provide a kind of air inlet guide vane adjusting device, is difficult to the air inlet guide vane that solves existing aero-engineThe technical problem of fine adjustment.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of air inlet guide vane adjusting device, comprises electric controller, electrohydraulic servo valve and for regulating the piston of angle of air inlet guide vaneAssembly;
Electric controller electrical connection electrohydraulic servo valve provides electrical input signal for electrohydraulic servo valve;
Electrohydraulic servo valve is for the action of driven plunger assembly;
Also comprise position sensor, position sensor detects the displacement of piston component and generates feedback signal and feeds back to electric controller,Electric controller is according to the driving signal of external world's input and feedback signal output electrical input signal.
Further, piston component is positioned at sleeve, the piston that piston component comprises piston rod and coordinates with the inner wall sealing of sleeveHead; The sealing surface that sleeve forms along the inwall of piston head and sleeve is divided into the first cavity and the second cavity; Piston rod is along secondCavity extends outside sleeve; Electrohydraulic servo valve comprises the first output circuit and the second output circuit, the first output circuit and second defeatedVent line is conducting to the first cavity, the second cavity respectively, and electrohydraulic servo valve is through the first output circuit, the second output circuit control theThe pressure differential of one cavity and the second cavity, promotes piston component displacement.
Further, position sensor stretches into sleeve inner to detect the displacement of piston component.
Further, position sensor is linear movement pick-up, comprises the first detection segment and second detection segment of parallel alternate setting,The first detection segment, the second detection segment run through piston head and stretch into piston rod inside, and piston rod inside is provided with for short circuit first and detectsThe conducting bar of section, the second detection segment.
Further, also comprise housing, electrohydraulic servo valve, sleeve and position sensor are all located at enclosure interior.
Further, sleeve is provided with the draining hole of drawing hull outside.
Further, air inlet guide vane is the air inlet blade in aero-engine.
The present invention has following beneficial effect:
Air inlet guide vane adjusting device of the present invention, drives air inlet guide vane to carry out angle adjustment by electrohydraulic servo valve driven plunger assembly,And detect the displacement of piston component and the displacement signal of piston component is fed back to electric controller by position sensor, thereby formBe subject to the closed-loop regulating system of the electrohydraulic servo valve of electric controller control, can realize the accurate adjusting to air inlet guide vane angle, withAccurately control the charge flow rate of the air intake duct of compressor, thus the generation of surge while avoiding compressor work.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage. BelowWith reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing of a part that forms the application is used to provide a further understanding of the present invention, illustrative examples of the present invention andIts explanation is used for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the structural representation of the air inlet guide vane adjusting device of the preferred embodiment of the present invention;
Fig. 2 is the cross-sectional view of Fig. 1; And
Fig. 3 is the loop control theory schematic diagram of preferred embodiment of the present invention air inlet guide vane adjusting device.
Description of reference numerals:
10, housing; 20, electrohydraulic servo valve; 30, piston component;
31, piston head; 32, piston rod; 33, conducting bar;
40, sleeve; 41, the first cavity; 42, the second cavity; 43, draining hole;
50, electric controller; 60, position sensor; 61, the first detection segment; 62, the second detection segment.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the present invention can be defined by the claims and coverMultitude of different ways implement.
With reference to Fig. 1 and Fig. 2, the preferred embodiments of the present invention provide a kind of air inlet guide vane adjusting device, comprise electric controller 50,Electrohydraulic servo valve 20 and for regulating the piston component 30 of angle of air inlet guide vane. Air inlet guide vane in the present embodiment is that aviation is startedAir inlet blade on machine, is arranged on the air intake duct of compressor, adjusts the air inlet of air intake duct by adjusting the angle of air inlet guide vaneFlow. Electric controller 50 is electrically connected electrohydraulic servo valve 20 and provides electrical input signal for electrohydraulic servo valve 20; Electrohydraulic servo valve 20Move for driven plunger assembly 30. Air inlet guide vane adjusting device of the present invention also comprises position sensor 60, position sensor 60For detection of the displacement of piston rod 32 and generate feedback signal and feed back to electric controller 50, electric controller 50 is according to external world's inputDrive signal and feedback signal output electrical input signal, thereby realized the SERVO CONTROL of following the tracks of piston component 30 displacements, with toThe angle of the air inlet guide vane that piston component 30 connects precisely regulates. Air inlet guide vane adjusting device embodiment of the present invention, by electricityHydraulic servo 20 driven plunger assemblies 30 drive air inlet guide vane to carry out angle adjustment, and detect piston group by position sensor 60The displacement of part 30 is also fed back to electric controller 50 by the displacement signal of piston component 30, controlled by electric controller 50 thereby formedThe closed-loop regulating system of electrohydraulic servo valve 20, can realize the accurate adjusting to air inlet guide vane angle, accurately to control compressorThe charge flow rate of air intake duct, thereby the generation of surge while avoiding compressor work.
With reference to Fig. 2, in the present embodiment, air inlet guide vane actuating unit comprises peripheral housing 10, electrohydraulic servo valve 20 and positionSensor 60 is all located at housing 10 inside, and in housing 10, is provided with the sleeve for piston component 30 linear displacement spaces are provided40. Piston component 30 comprises piston head 31 and piston rod 32, and piston head 31 is connected with piston rod 32, and piston head 31 outsideFootpath is greater than the external diameter of piston rod 32. Piston head 31 be located in sleeve 40 and with sealable flexible connection of inwall of sleeve 40,Piston rod 32 extends sleeve 40 outsides away from the end of piston head 31, outside housing 10, be arranged on compressor air inlet machineAir inlet blade chain connection on road, realizes the angular adjustment of air inlet guide vane, to control by the displacement of control piston assembly 30The charge flow rate of air intake duct. Sleeve 40 is divided into the first cavity 41 along piston head 31 and the sealing surface that the inwall of sleeve 40 formsAnd second cavity 42, piston head 31 forms the first cavity 41, piston head 31 and sleeve 40 with the asking of an end face of sleeve 40Other end between form the second cavity 42, piston rod 32 extends sleeve 40 outsides along the second cavity 42.
Electrohydraulic servo valve 20 is located at the top of sleeve 40, and electrohydraulic servo valve 20 comprises voltage supply oil circuit P, oil return circuit R, firstOutput circuit A and the second output circuit B, the first output circuit A and the second output circuit B difference conducting to the first cavity 41,The second cavity 42, electrohydraulic servo valve 20 is controlled the first cavity 41 and the second chamber through the first output circuit A, the second output circuit BThe pressure differential of body 42, thus piston component 30 displacements promoted.
In order to save space, and facilitate and the relative displacement such as between piston component 30 and position sensor 60, rotate, preferably,Position sensor 60 stretches into sleeve 40 inside to detect the displacement of piston component 30. In the present embodiment, position sensor 60For linear movement pick-up, comprise the first detection segment 61 and second detection segment 62, the first detection segment 61, of parallel alternate settingTwo detection segment 62 run through piston head 31 and stretch into piston rod 32 inside, and piston rod 32 inside are provided with for short circuit the first detection segment61, the conducting bar 33 of the second detection segment 62, this conducting bar 33 can be selected iron core or its conductive material. Like this, displacement of the lines passesSensor, by detecting the short circuit position between the first detection segment 61 and the second detection segment 62, can detect the linearity of piston component 30Displacement. And because the first detection segment 61, second detection segment 62 of linear movement pick-up run through piston head 31 and stretch into piston rod 32Inside, while having avoided, between piston component 30 and linear movement pick-up, relative swing offset occurs, linear movement pick-up is impaired,Thereby both saved taking up room of linear movement pick-up, improved again the service life of linear movement pick-up. And air inlet of the present inventionStator actuating unit is by being all located at housing 10 by electric controller 50, sleeve 40, position sensor 60 and electrohydraulic servo valve 20In, both greatly reduced antipollution and the jamproof ability of each parts, avoid again electrohydraulic servo valve 20 with sleeve 40 and livedBetween plug assembly 30, be connected through longer pipeline, improved the response accuracy of piston component 30, and function be integrated, be convenient to application.
Preferably, in order to improve the reliability of sleeve 40 fuel sealings, sleeve 40 is provided with the draining hole 43 of drawing housing 10 outsides.
With reference to Fig. 3, the job control flow process of air inlet guide vane adjusting device of the present invention is as follows: input one first to electric controller 50 and driveMoving initial voltage signal U, electric controller 50 is changed and is enlarged into current signal I by this initial voltage signal U and exports to electric liquidServo valve 20, current signal I is converted to hydraulic flow Q proportional to size of current, electrohydraulic servo valve by electrohydraulic servo valve 2020 output hydraulic pressure flow Q move with driven plunger assembly 30 to sleeve 40; The action meeting of piston component 30 is at position sensingOn device 60, produce one with the feedback voltage U of initial voltage signal U opposite direction of inputf. As feedback voltage UfWith initial electricityWhile pressing signal U to equate, the input voltage Δ U of electric controller 50 is just zero, and electrohydraulic servo valve 20 is got back to zero-bit, piston component30 are parked on this position, thereby have realized the control of air inlet guide vane angle θ.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, etc.With replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. an air inlet guide vane adjusting device, is characterized in that, comprises electric controller (50), electrohydraulic servo valve (20) and for adjustingSave the piston component (30) of the angle of described air inlet guide vane; Described air inlet guide vane is the air inlet blade in aero-engine, establishesPut on the air intake duct of compressor;
Described electric controller (50) is electrically connected described electrohydraulic servo valve (20), and provides for described electrohydraulic servo valve (20)Electrical input signal;
Described electrohydraulic servo valve (20) drives described piston component (30) action;
Also comprise position sensor (60), the displacement that described position sensor (60) detects described piston component (30) alsoGenerate feedback signal and feed back to described electric controller (50), described electric controller (50) is according to the driving signal of external world's inputAnd described feedback signal is exported described electrical input signal;
Described piston component (30) is positioned at sleeve (40), described piston component (30) comprise piston rod (32) andThe piston head (31) coordinating with the inner wall sealing of described sleeve (40);
Described sleeve (40) is divided along described piston head (31) and the sealing surface that the inwall of described sleeve (40) formsBe the first cavity (41) and the second cavity (42); Described piston rod (32) extends institute along described the second cavity (42)State outside sleeve (40);
Described electrohydraulic servo valve (20) comprises the first output circuit and the second output circuit, described the first output circuit and instituteState the second output circuit extremely described the first cavity (41), the second cavity (42) of conducting respectively, described electrohydraulic servo valve (20)Through the first cavity (41) described in described the first output circuit, the second output circuit control and described the second cavity (42)Pressure differential, promotes described piston component (30) displacement;
Described position sensor (60) stretches into the inner displacement that detects described piston component (30) of described sleeve (40);
Described position sensor (60) is linear movement pick-up, comprise parallel alternate setting the first detection segment (61) andThe second detection segment (62), described the first detection segment (61), the second detection segment (62) run through described piston head (31) alsoStretch into described piston rod (32) inside, described piston rod (32) inside be provided with for the first detection segment (61) described in short circuit,The conducting bar (33) of the second detection segment (62).
2. air inlet guide vane adjusting device according to claim 1, is characterized in that,
Also comprise housing (10), described electrohydraulic servo valve (20), sleeve (40) and position sensor (60) are all located atDescribed housing (10) inside.
3. air inlet guide vane adjusting device according to claim 2, is characterized in that,
Described sleeve (40) is provided with draws the outside draining hole (43) of described housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407182.XA CN103437833B (en) | 2013-09-09 | 2013-09-09 | Air inlet guide vane adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407182.XA CN103437833B (en) | 2013-09-09 | 2013-09-09 | Air inlet guide vane adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN103437833A CN103437833A (en) | 2013-12-11 |
| CN103437833B true CN103437833B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310407182.XA Active CN103437833B (en) | 2013-09-09 | 2013-09-09 | Air inlet guide vane adjusting device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739453A (en) * | 2014-12-10 | 2016-07-06 | 西安航空动力控制科技有限公司 | Distributed-control-idea-based intelligent imported guide vane control method and apparatus |
| CN108757537B (en) * | 2018-06-05 | 2024-01-05 | 麦克维尔空调制冷(苏州)有限公司 | Air inlet accurate control and tightness monitoring system of centrifugal compressor |
| CN109595219A (en) * | 2019-02-01 | 2019-04-09 | 上海置道液压控制技术有限公司 | The servo actuator of air inlet guide vane in a kind of gas turbine |
| CN109764012A (en) * | 2019-03-06 | 2019-05-17 | 上海电气燃气轮机有限公司 | A kind of hydraulic actuating mechanism and gas turbine |
| CN111173571B (en) * | 2020-02-21 | 2020-12-25 | 浙江鼎兴企业管理有限公司 | Turbine with adjustable blade angle |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755409A (en) * | 1993-08-06 | 1995-03-03 | Shin Caterpillar Mitsubishi Ltd | Displacement sensor |
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| CN201133390Y (en) * | 2007-12-19 | 2008-10-15 | 中国重型机械研究院 | Cylinder valve integrated servo-vibration hydraulic cylinder device |
| CN101978175A (en) * | 2008-03-21 | 2011-02-16 | 株式会社小松制作所 | Hydraulic servo-drive device and variable turbo-supercharger using the same |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Guo jiahuodiqu after: Zhong Guo Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Guo jiahuodiqu before: Zhong Guo |
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