CN103437833A - Air inlet guide vane adjusting device - Google Patents
Air inlet guide vane adjusting device Download PDFInfo
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- CN103437833A CN103437833A CN201310407182XA CN201310407182A CN103437833A CN 103437833 A CN103437833 A CN 103437833A CN 201310407182X A CN201310407182X A CN 201310407182XA CN 201310407182 A CN201310407182 A CN 201310407182A CN 103437833 A CN103437833 A CN 103437833A
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- air inlet
- guide vane
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 25
- 230000001276 controlling effect Effects 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 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
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement 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
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Abstract
The invention discloses an air inlet guide vane adjusting device. The air inlet guide vane adjusting device comprises an electric controller, an electro-hydraulic servo valve and a piston assembly which is used for adjusting the angle of an air inlet guide vane, wherein the electric controller is electrically connected with the electro-hydraulic servo valve and supplies electrical input signals to the electro-hydraulic servo valve; the electro-hydraulic servo valve is used for driving the piston assembly to act. The air inlet guide vane adjusting device further comprises a position sensor, wherein the position sensor detects the displacement of the piston assembly, generates feedback signals and feeds back the feedback signals to the electric controller, and the electric controller outputs the electrical input signals according to external input drive signals and the feedback signals. According to the air inlet guide vane adjusting device, angle adjustment is carried out in a manner that the electro-hydraulic servo valve drives the piston assembly to drive the air inlet guide vane, and the position sensor detects the displacement of the piston assembly and feeds back the displacement signals of the piston assembly to the electric controller, so that a closed-loop control system, controlled by the electric controller, of the electro-hydraulic servo valve is formed, the accurate adjustment on the angle of the air inlet guide vane can be realized, and then, the inlet air flow volume of an air inlet passage of an air compressor is controlled accurately, thus the occurrence of surging during the work of the air compressor is avoided.
Description
Technical field
The present invention relates to the aeroengine control field, especially, relate to a kind of controlling device of the air inlet guide vane for aeroengine.
Background technique
The gas compressor of aeroengine is the important component part of turbosupercharger, air is through the intake duct of gas compressor, enter the impeller of gas compressor with certain initial velocity, absorb mechanical energy in impeller passage, pressure and speed are improved a lot, after entering Diffuser, pressure further raises, and reaches the purpose of supercharging.Under certain rotating speed, when the gas flow of gas compressor is reduced to a certain degree, gas will occur boundary layer separation causing gas backstreaming at impeller or place, diffuser inlet.Separation eddy expands to rapidly other parts of gas compressor passage, and strong vibration appears in air-flow, causes the blade judder, and produces very large noise, and this phenomenon becomes the surge of gas compressor.The operation point that surge occurs is called to pumping point, and corresponding flow is Surging flow, and a pumping point is arranged under each rotating speed.Surge belongs to the unstable operation phenomenon of gas compressor, in real work, should avoid the generation of surge.Therefore the charge flow rate of gas compressor is carried out to the generation of fine adjustment surge while being conducive to avoid gas compressor work, adjusting for the compressor air inlet machine flow need to realize by the adjustment of the angle to air inlet guide vane, therefore, need the controlling device of a kind of fine adjustment air inlet guide vane angle of design badly.
Summary of the invention
The object of the invention is to provide a kind of air inlet guide vane controlling device, is difficult to the technical problem of fine adjustment with the air inlet guide vane that solves existing aeroengine.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of air inlet guide vane controlling device, comprise that electric controller, electrohydraulic control reach the piston assembly of the angle for regulating air inlet guide vane;
Electric controller is electrically connected to electrohydraulic control and provides electrical input signal for electrohydraulic control;
Electrohydraulic control is for the action of driven plunger assembly;
Also comprise position transducer, position transducer detects the displacement of piston assembly and generates feedback signal and feeds back to electric controller, and electric controller is according to driving signal and the feedback signal output electrical input signal of external world's input.
Further, piston assembly is positioned at sleeve, and piston assembly comprises piston rod and the piston head coordinated with the inner wall sealing of sleeve; Sleeve is divided into the first cavity and the second cavity along the sealing surface of the inwall formation of piston head and sleeve; Piston rod extends outside sleeve along the second cavity; Electrohydraulic control comprises the first output circuit and the second output circuit, the first output circuit and the second output circuit be conducting to the first cavity, the second cavity respectively, electrohydraulic control is controlled the pressure difference of the first cavity and the second cavity through the first output circuit, the second output circuit, promote the piston assembly displacement.
Further, position transducer stretches into sleeve inner to detect the displacement of piston assembly.
Further, position transducer is linear movement pick-up, the first detection segment and the second detection segment that comprise 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 the conducting bar for short circuit the first detection segment, the second detection segment.
Further, also comprise housing, electrohydraulic control, sleeve and position transducer all are located at enclosure interior.
Further, sleeve is provided with the draining hole of drawing outside.
Further, air inlet guide vane is the air inlet blade on aeroengine.
The present invention has following beneficial effect:
Air inlet guide vane controlling device of the present invention, drive air inlet guide vane by electrohydraulic control driven plunger assembly and carry out angular adjustment, and detect the displacement of piston assembly and the displacement signal of piston assembly is fed back to electric controller by position transducer, thereby formed the closed-loop regulating system of the electrohydraulic control that is subject to electric controller control, can realize the accurate adjusting to the air inlet guide vane angle, with the charge flow rate of the intake duct of accurately controlling gas compressor, thus the generation of surge while avoiding gas compressor work.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.Below, with reference to figure, the present invention is further detailed explanation.
The accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is the structural representation of the air inlet guide vane controlling 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 controlling device.
Description of reference numerals:
10, housing; 20, electrohydraulic control; 30, piston assembly;
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 transducer; 61, the first detection segment; 62, the second detection segment.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 1 and Fig. 2, the preferred embodiments of the present invention provide a kind of air inlet guide vane controlling device, comprise that electric controller 50, electrohydraulic control 20 reach the piston assembly 30 of the angle for regulating air inlet guide vane.Air inlet guide vane in the present embodiment is the air inlet blade on aeroengine, is arranged on the intake duct of gas compressor, adjusts the charge flow rate of intake duct by the angle of adjusting air inlet guide vane.Electric controller 50 is electrically connected to electrohydraulic control 20 and provides electrical input signal for electrohydraulic control 20; Electrohydraulic control 20 is for 30 actions of driven plunger assembly.Air inlet guide vane controlling device of the present invention also comprises position transducer 60, position transducer 60 is for 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 driving signal and the feedback signal output electrical input signal of external world's input, thereby realized following the tracks of the servocontrol of piston assembly 30 displacements, precisely regulated with the angle of the air inlet guide vane to being connected with piston assembly 30.Air inlet guide vane controlling device embodiment of the present invention, drive air inlet guide vane by electrohydraulic control 20 driven plunger assemblies 30 and carry out angular adjustment, and detect the displacement of piston assembly 30 and the displacement signal of piston assembly 30 is fed back to electric controller 50 by position transducer 60, thereby formed the closed-loop regulating system of the electrohydraulic control 20 that is subject to electric controller 50 controls, can realize the accurate adjusting to the air inlet guide vane angle, with the charge flow rate of the intake duct of accurately controlling gas compressor, thus the generation of surge while avoiding gas compressor work.
With reference to Fig. 2, in the present embodiment, the air inlet guide vane actuating device comprises peripheral housing 10, and electrohydraulic control 20 and position transducer 60 all are located at housing 10 inside, and in housing 10, is provided with for the sleeve 40 in piston assembly 30 linear displacement spaces is provided.Piston assembly 30 comprises piston head 31 and piston rod 32, and piston head 31 is connected with piston rod 32, and the external diameter of piston head 31 is greater than the external diameter of piston rod 32.Piston head 31 be located in sleeve 40 and with the sealable flexible connection of the inwall of sleeve 40, piston rod 32 extends sleeve 40 outsides away from the end of piston head 31, be outside housing 10, with the air inlet blade chain connection with being arranged on compressor inlet port, realize the angle adjustment of air inlet guide vane by the displacement of control piston assembly 30, to control the charge flow rate of intake duct.Sleeve 40 is divided into the first cavity 41 and the second cavity 42 along piston head 31 and the sealing surface of the inwall formation of sleeve 40, be that piston head 31 forms the first cavity 41 with the asking of an end face of sleeve 40, form the second cavity 42 between the other end of piston head 31 and sleeve 40, piston rod 32 extends sleeve 40 outsides along the second cavity 42.
In order to save space, and facilitate between piston assembly 30 and position transducer 60 and the relative displacement such as rotate, preferably, position transducer 60 stretches into sleeve 40 inside to detect the displacement of piston assembly 30.In the present embodiment, position transducer 60 is linear movement pick-up, the first detection segment 61 and the second detection segment 62 that comprise parallel alternate setting, the first detection segment 61, the second detection segment 62 run through piston head 31 and stretch into piston rod 32 inside, piston rod 32 inside are provided with the conducting bar 33 for short circuit the first detection segment 61, the second detection segment 62, and this conducting bar 33 can be selected iron core or its conductive material.Like this, linear movement pick-up, by detecting the short circuit position between the first detection segment 61 and the second detection segment 62, can detect the linear displacement of piston assembly 30.And because the first detection segment 61, second detection segment 62 of linear movement pick-up runs through piston head 31 and stretch into piston rod 32 inside, while having avoided between piston assembly 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 working life of linear movement pick-up.And air inlet guide vane actuating device of the present invention is by all being located at electric controller 50, sleeve 40, position transducer 60 and electrohydraulic control 20 in housing 10, antipollution and the jamproof ability of each parts had both been greatly reduced, avoided again through longer pipeline, being connected between electrohydraulic control 20 and sleeve 40 and piston assembly 30, improved the response accuracy of piston assembly 30, and function is 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 controlling device of the present invention is as follows: the initial voltage signal U that first gives a driving of electric controller 50 inputs, electric controller 50 is changed and is enlarged into current signal I by this initial voltage signal U and exports to electrohydraulic control 20, electrohydraulic control 20 is converted to hydraulic flow Q proportional to size of current by current signal I, and electrohydraulic control 20 output hydraulic pressure flow Q move with driven plunger assembly 30 to sleeve 40; The action meeting of piston assembly 30 produces a feedback voltage U of initial voltage signal U opposite direction with input on position transducer 60
f.As feedback voltage U
fwhile equating with initial voltage signal U, the input voltage Δ U of electric controller 50 is just zero, and electrohydraulic control 20 is got back to zero-bit, and piston assembly 30 is parked on this position, thereby has 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 a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. an air inlet guide vane controlling device, is characterized in that, comprises that electric controller (50), electrohydraulic control (20) reach the piston assembly (30) of the angle for regulating described air inlet guide vane;
Described electric controller (50) is electrically connected to described electrohydraulic control (20), and provides electrical input signal for described electrohydraulic control (20);
Described electrohydraulic control (20) drives described piston assembly (30) action;
Also comprise position transducer (60), described position transducer (60) detects the displacement of described piston assembly (30) and generates feedback signal and feeds back to described electric controller (50), and described electric controller (50) is exported described electrical input signal according to driving signal and the described feedback signal of external world's input.
2. air inlet guide vane controlling device according to claim 1, is characterized in that,
Described piston assembly (30) is positioned at sleeve (40), and described piston assembly (30) comprises piston rod (32) and the piston head (31) coordinated with the inner wall sealing of described sleeve (40);
Described sleeve (40) is divided into the first cavity (41) and the second cavity (42) along described piston head (31) and the sealing surface of the inwall formation of described sleeve (40); Described piston rod (32) is outside described the second cavity (42) extends described sleeve (40);
Described electrohydraulic control (20) comprises the first output circuit and the second output circuit, described the first output circuit and described the second output circuit difference conducting are to described the first cavity (41), the second cavity (42), described electrohydraulic control (20) is controlled the pressure difference of described the first cavity (41) and described the second cavity (42) through described the first output circuit, the second output circuit, promote described piston assembly (30) displacement.
3. air inlet guide vane controlling device according to claim 2, is characterized in that,
Described position transducer (60) stretches into the inner displacement that detects described piston assembly (30) of described sleeve (40).
4. air inlet guide vane controlling device according to claim 3, is characterized in that,
Described position transducer (60) is linear movement pick-up, the first detection segment (61) and the second detection segment (62) that comprise parallel alternate setting, described the first detection segment (61), the second detection segment (62) run through described piston head (31) and stretch into described piston rod (32) inside, and described piston rod (32) inside is provided with the conducting bar (33) for described the first detection segment of short circuit (61), the second detection segment (62).
5. air inlet guide vane controlling device according to claim 2, is characterized in that,
Also comprise housing (10), described electrohydraulic control (20), sleeve (40) and position transducer (60) all are located at described housing (10) inside.
6. air inlet guide vane controlling device according to claim 5, is characterized in that,
Described sleeve (40) is provided with draws the outside draining hole (43) of described housing (10).
7. according to the described air inlet guide vane controlling device of claim 1 to 6 any one, it is characterized in that,
Described air inlet guide vane is the air inlet blade on aeroengine.
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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| CN103437833A true CN103437833A (en) | 2013-12-11 |
| CN103437833B CN103437833B (en) | 2016-05-25 |
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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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Cited By (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 |
| CN108757537A (en) * | 2018-06-05 | 2018-11-06 | 麦克维尔空调制冷(苏州)有限公司 | The air inlet of centrifugal compressor accurately controls and leakproofness monitoring system |
| 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 |
| CN111173571A (en) * | 2020-02-21 | 2020-05-19 | 象山冰川智能装备有限公司 | Turbine with adjustable blade angle |
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Cited By (7)
| 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 |
| CN108757537A (en) * | 2018-06-05 | 2018-11-06 | 麦克维尔空调制冷(苏州)有限公司 | The air inlet of centrifugal compressor accurately controls and leakproofness monitoring system |
| 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 |
| CN109764012B (en) * | 2019-03-06 | 2024-05-07 | 上海电气燃气轮机有限公司 | Hydraulic actuating mechanism and gas turbine |
| CN111173571A (en) * | 2020-02-21 | 2020-05-19 | 象山冰川智能装备有限公司 | Turbine with adjustable blade angle |
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| CN103437833B (en) | 2016-05-25 |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: China Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: China |