CN103195585A - Anti-surge valve - Google Patents
Anti-surge valve Download PDFInfo
- Publication number
- CN103195585A CN103195585A CN2013101276851A CN201310127685A CN103195585A CN 103195585 A CN103195585 A CN 103195585A CN 2013101276851 A CN2013101276851 A CN 2013101276851A CN 201310127685 A CN201310127685 A CN 201310127685A CN 103195585 A CN103195585 A CN 103195585A
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- valve
- working hole
- servovalve
- pressurized strut
- strut assembly
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Abstract
The invention belongs to the technical field of aviation hydraulics and particularly relates to an anti-surge valve. The anti-surge valve comprises an actuating cylinder component and a butterfly valve connected with the actuating cylinder component, and also comprises a servo valve and a linear displacement sensor, wherein the servo valve is connected with the actuating cylinder component, and the linear displacement sensor senses the displacement of the actuating cylinder component and feeds back a displacement signal to the servo valve. The servo valve is introduced into the anti-surge valve to be used as a control element, the linear displacement sensor is taken as a measurement and feedback element, and a closed loop control system of the anti-surge valve is formed by the servo valve and the linear displacement sensor together, so that the butterfly valve can be stopped at any angle position in the opening process according to the actual needs, and the control precision and the stability of the anti-surge valve reach plus or minus 0.2 degree. Compared with a conventional air relief valve, the anti-surge valve can be used for changing the through-flow area of an air path in real time according to the system needs and controlling the exhaust quantity so as to reduce the waste of system power and enhance the working efficiency of the system.
Description
Technical field
The invention belongs to the hydraulic air technical field, particularly relate to a kind of anti-asthma valve.
Background technique
In traditional anti-asthma valve product, mainly based on the control gas path on-off, can not be according to actual working environment and the accurate continuous control product of the pilot pressure gas circuit circulation area of product, can only control the break-make of gas circuit, the increase that this has caused the engine pressure loss has to a certain extent reduced the efficient of aeroengine.
Summary of the invention
The objective of the invention is: a kind of anti-asthma valve is provided, can be according to system's needs real time altering gas circuit flow area, the control discharge quantity can reduce the system power waste, improves system works efficient.
Technological scheme of the present invention is: a kind of anti-asthma valve, comprise pressurized strut assembly 1 and connected butterfly valve 2, also comprise servovalve 3 and linear movement pick-up 4, described servovalve 3 is connected with pressurized strut assembly 1, described linear movement pick-up 4 is experienced the displacement of pressurized strut assembly 1, and displacement signal fed back to servovalve 3, and servovalve 3 is according to 1 motion of feedback signal control pressurized strut assembly, and linear movement pick-up 4 also is connected with butterfly valve 2 by link assembly 5.
First working hole 301 of described servovalve 3 is connected to the first piston chamber 101 of pressurized strut assembly 1, second working hole 302 is connected to second piston cavity 102 of pressurized strut assembly 1, the 3rd working hole 303 is connected to outside oil return equipment, the 4th working hole 304 is connected to outside oil-servicing facilities, servovalve 3 is by the conversion of spool 304, control being communicated with between first working hole 301 and second working hole 302 and first piston chamber 101 and second piston cavity 102, when 301 oil-feeds of first working hole, second working hole 302 and the 3rd working hole 303 are communicated with, when 302 oil-feeds of second working hole, first working hole 301 and the 3rd working hole 303 are communicated with.
Also be provided with drain tap 103 on the described pressurized strut assembly 1.
Advantage of the present invention is: introduce servovalve in the anti-asthma valve of the present invention as control unit, linear movement pick-up is as measuring feedback elements.Servovalve and linear movement pick-up have been formed the closed loop control system of this product together, make butterfly valve can rest on any angular position in the opening procedure according to actual needs.Its control accuracy and stability reached ± and 0.2 °.Compare with traditional air bleed valve, the present invention can be according to system's needs real time altering gas circuit flow area, and the control discharge quantity can reduce the system power waste, improves system works efficient.As the present invention when the service line displacement transducer signal is not as feedback signal, can be according to action trend and the speed of the different Current Control butterfly valves that provide for servovalve.It is in order to guarantee that product valve under power failure state is in the maximum opening position, has increased the Security of system that servovalve has zero bias current.When servovalve being applied when approaching zero bias current value, the control accuracy influence can be very big, causes different product to understand some performance difference.But full deflection current difference is not obvious to influencing, and namely can not influence the opening and closing speed of butterfly valve maximum.Therefore near the electric current will more utilizing completely partially during practical application avoids zero bias current difference to the influence of butterfly valve opening and closing speed.This anti-asthma valve is provided with drain tap, can prevent fuel leakage, improves security of products.This anti-asthma valve also is provided with status indicating device, can externally observe directly the location status of valve.
Description of drawings
Fig. 1 is the structural representation of state one of the present invention;
Fig. 2 is the structural representation of state two of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done to describe in further detail, see also Fig. 1 to Fig. 2.
As shown in Figures 1 and 2, a kind of anti-asthma valve, comprise pressurized strut assembly 1 and connected butterfly valve 2, also comprise servovalve 3 and linear movement pick-up 4, described servovalve 3 is connected with pressurized strut assembly 1, and described linear movement pick-up 4 is experienced the displacement of pressurized strut assembly 1, and displacement signal is fed back to servovalve 3, servovalve 3 is according to 1 motion of feedback signal control pressurized strut assembly, and linear movement pick-up 4 also is connected with butterfly valve 2 by link assembly 5.
First working hole 301 of described servovalve 3 is connected to the first piston chamber 101 of pressurized strut assembly 1, second working hole 302 is connected to second piston cavity 102 of pressurized strut assembly 1, the 3rd working hole 303 is connected to outside oil return equipment, the 4th working hole 304 is connected to outside oil-servicing facilities, servovalve 3 is by the conversion of spool 304, control being communicated with between first working hole 301 and second working hole 302 and first piston chamber 101 and second piston cavity 102, when 301 oil-feeds of first working hole, second working hole 302 and the 3rd working hole 303 are communicated with, when 302 oil-feeds of second working hole, first working hole 301 and the 3rd working hole 303 are communicated with.
Also be provided with drain tap 103 on the described pressurized strut assembly 1.
Be carved with the groove that shows the valve position on the axle of described butterfly valve 2, be carved with the printed words of " opening ", " closing " on the housing, the groove on the axle can rotate along with the valve physical location, makes things convenient for the observer to understand the valve location status.
Introduce servovalve in the anti-asthma valve of the present invention as control unit, linear movement pick-up is as measuring feedback elements.Servovalve and linear movement pick-up have been formed the closed loop control system of this product together, make butterfly valve can rest on any angular position in the opening procedure according to actual needs.Its control accuracy and stability reached ± and 0.2 °.Compare with traditional air bleed valve, the present invention can be according to system's needs real time altering gas circuit flow area, and the control discharge quantity can reduce the system power waste, improves system works efficient.As the present invention when the service line displacement transducer signal is not as feedback signal, can be according to action trend and the speed of the different Current Control butterfly valves that provide for servovalve.It is in order to guarantee that product valve under power failure state is in the maximum opening position, has increased the Security of system that servovalve has zero bias current.When servovalve being applied when approaching zero bias current value, the control accuracy influence can be very big, causes different product to understand some performance difference.But full deflection current difference is not obvious to influencing, and namely can not influence the opening and closing speed of butterfly valve maximum.Therefore near the electric current will more utilizing completely partially during practical application avoids zero bias current difference to the influence of butterfly valve opening and closing speed.This anti-asthma valve is provided with drain tap, can prevent fuel leakage, improves security of products.This anti-asthma valve also is provided with status indicating device, can externally observe directly the location status of valve.
Claims (3)
1. anti-asthma valve, comprise pressurized strut assembly [1] and connected butterfly valve [2], it is characterized in that, also comprise servovalve [3] and linear movement pick-up [4], described servovalve [3] is connected with pressurized strut assembly [1], and described linear movement pick-up [4] is experienced the displacement of pressurized strut assembly [1], and displacement signal is fed back to servovalve [3], servovalve [3] is according to feedback signal control pressurized strut assembly [1] motion, and linear movement pick-up [4] also is connected with butterfly valve [2] by link assembly [5].
2. a kind of anti-asthma valve according to claim 1, it is characterized in that, first working hole [301] of described servovalve [3] is connected to the first piston chamber [101] of pressurized strut assembly [1], second working hole [302] is connected to second piston cavity [102] of pressurized strut assembly [1], the 3rd working hole [303] is connected to outside oil return equipment, the 4th working hole [304] is connected to outside oil-servicing facilities, servovalve [3] is by the conversion of spool [304], control being communicated with between first working hole [301] and second working hole [302] and first piston chamber [101] and second piston cavity [102], when first working hole [301] oil-feed, second working hole [302] and the 3rd working hole [303] are communicated with, when second working hole [302] oil-feed, first working hole [301] and the 3rd working hole [303] are communicated with.
3. a kind of anti-asthma valve according to claim 2 is characterized in that, also is provided with drain tap [103] on the described pressurized strut assembly [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101276851A CN103195585A (en) | 2013-04-12 | 2013-04-12 | Anti-surge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101276851A CN103195585A (en) | 2013-04-12 | 2013-04-12 | Anti-surge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103195585A true CN103195585A (en) | 2013-07-10 |
Family
ID=48718341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101276851A Pending CN103195585A (en) | 2013-04-12 | 2013-04-12 | Anti-surge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195585A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035536A (en) * | 2017-06-02 | 2017-08-11 | 中国航发南方工业有限公司 | Air bleed valve servicing unit and the aero-engine with it |
| CN111828178A (en) * | 2020-06-30 | 2020-10-27 | 中国航发南方工业有限公司 | Air bleeding valve, air compressor air bleeding control system adopting air bleeding valve and aircraft engine |
| CN111894741A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Anti-surge device for engine |
| CN112196636A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Engine deflation mechanism assembling method based on tightening ejection tool and tightening ejection tool |
| CN114320614A (en) * | 2021-12-29 | 2022-04-12 | 中国航发长春控制科技有限公司 | Continuous adjustable high-temperature-resistant deflation valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3804112A (en) * | 1972-07-20 | 1974-04-16 | United Aircraft Corp | Surge control for a compressor |
| GB1352206A (en) * | 1970-11-27 | 1974-05-08 | Gen Electric | Fluid handling apparatus |
| CN200949577Y (en) * | 2006-08-30 | 2007-09-19 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Novel hydraulic actuator |
| CN202468010U (en) * | 2011-12-13 | 2012-10-03 | 长春航空液压控制有限公司 | Air bleed valve |
-
2013
- 2013-04-12 CN CN2013101276851A patent/CN103195585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1352206A (en) * | 1970-11-27 | 1974-05-08 | Gen Electric | Fluid handling apparatus |
| US3804112A (en) * | 1972-07-20 | 1974-04-16 | United Aircraft Corp | Surge control for a compressor |
| CN200949577Y (en) * | 2006-08-30 | 2007-09-19 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Novel hydraulic actuator |
| CN202468010U (en) * | 2011-12-13 | 2012-10-03 | 长春航空液压控制有限公司 | Air bleed valve |
Non-Patent Citations (1)
| Title |
|---|
| 笪靖: "工业阀门电液位置伺服驱动系统的研究及应用", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》, no. 07, 15 July 2012 (2012-07-15) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035536A (en) * | 2017-06-02 | 2017-08-11 | 中国航发南方工业有限公司 | Air bleed valve servicing unit and the aero-engine with it |
| CN111894741A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Anti-surge device for engine |
| CN111828178A (en) * | 2020-06-30 | 2020-10-27 | 中国航发南方工业有限公司 | Air bleeding valve, air compressor air bleeding control system adopting air bleeding valve and aircraft engine |
| CN111828178B (en) * | 2020-06-30 | 2021-06-18 | 中国航发南方工业有限公司 | Air bleeding valve, air compressor air bleeding control system adopting air bleeding valve and aircraft engine |
| CN112196636A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Engine deflation mechanism assembling method based on tightening ejection tool and tightening ejection tool |
| CN112196636B (en) * | 2020-09-29 | 2021-06-08 | 中国航发动力股份有限公司 | Engine deflation mechanism assembling method based on tightening ejection tool and tightening ejection tool |
| CN114320614A (en) * | 2021-12-29 | 2022-04-12 | 中国航发长春控制科技有限公司 | Continuous adjustable high-temperature-resistant deflation valve |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |