CN103629421A - Valve control system - Google Patents
Valve control system Download PDFInfo
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- CN103629421A CN103629421A CN201310656076.5A CN201310656076A CN103629421A CN 103629421 A CN103629421 A CN 103629421A CN 201310656076 A CN201310656076 A CN 201310656076A CN 103629421 A CN103629421 A CN 103629421A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Fluid-Driven Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to a valve control system. The valve control system comprises a valve control air cylinder, a first position keeping valve, a first pneumatic control valve, a second position keeping valve, a second pneumatic control valve, an electric valve positioning device, an air source connector, an electromagnetic control valve and a feedback device, wherein the electric valve positioning device comprises a first air outlet end, a second air outlet end and an air inlet end; the first air outlet end sequentially penetrates through the first pneumatic control valve and the first position keeping valve to be connected with a rodless cavity of the valve control air cylinder; the second air outlet end sequentially penetrates through the second pneumatic control valve and the second position keeping valve to be connected with the rod cavity of the valve control air cylinder; the air source connector is connected with control ends of the second position keeping valve and the first pneumatic control valve; the air source connector is connected with control ends of the first position keeping valve and the second pneumatic control valve through the electric valve positioning device; the feedback device is connected with a feedback input end of the electric valve positioning device and is used for detecting the state of a valve driven by the valve control air cylinder. According to the valve control system, the disadvantages of a control device in the prior art that the valve cannot be closed rapidly or opened rapidly are overcome.
Description
Technical field
The present invention relates to pneumatic control field, particularly relate to a kind of valve control system.
Background technique
Pneumatic control valve be take pressurized air exactly as power source, take cylinder as final controlling element, and by means of electric
The annexes such as valve positioner, air-filtering decompressor, solenoid valve, guarantor position valve Pneumatic valve remove to drive valve, realize
Switching value or proportion expression regulate, and the control signal that receives industrial automation control system completes adjutage track media
: the various process parameters such as flow, pressure, temperature.The feature of pneumatic control valve is controlled simply exactly, reaction
Fast, and essential safety, do not need to take again in addition explosion precaution, be widely used in the industries such as oil, chemical industry, rock gas, power station, metallurgy.
Along with the development of modernization industry, large-scale thermal power machine group, large scale chemical plant need to be used the valve of heavy caliber, high parameter and the surge-proof valve in large-scale compressor system.Guarantee the normal operation of valve, must configure the actuator of high thrust.Simultaneously from process system and the energy quick closedown of Security Function Requirements valve or open fast, modulating valve bore is DN1000 quick closedown or opens fast and be less than 2 seconds, and controlling method (time is 90 seconds) just can not meet the requirement of these special industries controls routinely.
Summary of the invention
The object of this invention is to provide a kind of valve control system, to solve control gear of the prior art
The problem that can not meet process system and the energy quick closedown of Security Function Requirements valve or open fast.
For solving the problems of the technologies described above, as one aspect of the present invention, provide a kind of valve to control
System, comprising: valve control cylinder, first is protected position valve, the first Pneumatic valve, second is protected position valve, the second Pneumatic valve, electropneumatic valve positioner, gas source interface, solenoid electric valve and feedback means; Electropneumatic valve positioner comprises the first outlet side, the second outlet side and inlet end; The first outlet side is protected position valve by the first Pneumatic valve and first successively and is connected with the rodless cavity of valve control cylinder, the second outlet side is protected position valve by the second Pneumatic valve and second successively and is connected with the rod chamber of valve control cylinder, and gas source interface is connected with the second control end of protecting position valve and the first Pneumatic valve; Gas source interface is connected with the first control end of protecting position valve and the second Pneumatic valve by solenoid electric valve; Feedback means is connected with the feedback input end of electropneumatic valve positioner, for detection of the state of the valve being driven by valve control cylinder.
Further, valve control system also comprises: the 3rd Pneumatic valve, gas source interface is by the 3rd gas control
Valve is connected with rodless cavity, and gas source interface is connected with the control end of the 3rd Pneumatic valve by solenoid electric valve.
Further, valve control system also comprises: the 4th Pneumatic valve, gas source interface by the 4th Pneumatic valve with
Rod chamber connects, and gas source interface is connected with the control end of the 4th Pneumatic valve.
Further, valve control system also comprises: caisson, and inlet opening is connected with gas source interface; First
Reduction valve, is arranged on the equipped at outlet port of caisson, and gas source interface is connected with the 3rd Pneumatic valve with the first reduction valve by caisson successively.
Further, valve control system also comprises: the second reduction valve, be arranged on inlet end and gas source interface it
Between.
Further, valve control system also comprises: the 3rd reduction valve, the control end of the first Pneumatic valve and second
The control end of protecting position valve is all connected with gas source interface by the 3rd reduction valve.
Further, valve control system also comprises: one-way valve, gas source interface is by one-way valve and caisson
Inlet opening connect.
Further, the first Pneumatic valve, the second Pneumatic valve and solenoid electric valve are two-position three-way valve.
What further, electropneumatic valve positioner collected according to the input signal providing to it and feedback means is anti-
Feedback signal is controlled the break-make of the first outlet side and the second outlet side.
Further, a first guarantor position valve, the first Pneumatic valve, second guarantor's position valve and the second Pneumatic valve are normally close valve.
The present invention accepts the current signal that regulator or control system are exported to electropneumatic valve positioner, then by electropneumatic valve positioner, by the current signal of input and the feedback signal of valve, compared, thereby record control deviation, and export corresponding air pressure through first according to this control thought, the second Pneumatic valve, first, second protects position valve to cylinder, thereby guarantee the valve location that certain control signal is corresponding certain, realize the action of control valve under nominal situation, overcome the shortcoming that control gear of the prior art can not meet process system and the energy quick closedown of Security Function Requirements valve or open fast.
Accompanying drawing explanation
Fig. 1 has schematically shown hydraulic schematic diagram of the present invention.
Reference character in figure: 1, valve control cylinder; 2, first protect position valve; 3, the first Pneumatic valve; 4, second protect position valve; 5, the second Pneumatic valve; 6, electropneumatic valve positioner; 7, caisson; 8, solenoid electric valve; 9, feedback means; 10, the first outlet side; 11, the second outlet side; 12, inlet end; 13, feedback input end; 14, the 3rd Pneumatic valve; 15, the 4th Pneumatic valve; 16, the first reduction valve; 17, the second reduction valve; 18, the 3rd reduction valve; 19, one-way valve; 20, valve; 21, gas source interface.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the present invention can be by claim
The multitude of different ways that limits and cover is implemented.
Especially, the connection in the present invention, can be direct connection, can be also indirect connection.Wherein,
While connecing in succession, other element can be set, such as reduction valve, caisson etc. between two elements.
Please refer to Fig. 1, the invention provides a kind of valve control system, comprising: valve control cylinder 1,
One protects position valve 2, the first Pneumatic valve 3, a second guarantor position valve 4, the second Pneumatic valve 5, electropneumatic valve positioner 6, gas source interface 21, solenoid electric valve 8 and feedback means 9; Electropneumatic valve positioner 6 comprises the first outlet side 10, the second outlet side 11 and inlet end 12; The first outlet side 10 is protected position valve 2 by the first Pneumatic valve 3 and first successively and is connected with the rodless cavity of valve control cylinder 1, the second outlet side 11 is protected position valve 4 by the second Pneumatic valve 5 and second successively and is connected with the rod chamber of valve control cylinder 1, and gas source interface 21 is connected with the second control end of protecting position valve 4 and the first Pneumatic valve 3; Gas source interface 21 is connected with the first control end of protecting position valve 2 and the second Pneumatic valve 5 by solenoid electric valve 8; Feedback means 9 is connected with the feedback input end 13 of electropneumatic valve positioner 6, for detection of the state of the valve 20 being driven by valve control cylinder 1.Preferably, the first Pneumatic valve 3, the second Pneumatic valve 5 and solenoid electric valve 8 are two-position three-way valve.
Especially, electropneumatic valve positioner 6, first is protected position valve 2 and the first Pneumatic valve 3 formation valves control gas
The top air-path control system of cylinder 1, the control when working.Electropneumatic valve positioner 6, second is protected the bottom air-path control system that position valve 4 and the second Pneumatic valve 5 form valve control cylinders 1, also the control when working.
Wherein, the first Pneumatic valve 3 can be normal close type two-position three-way, without control signal in the situation that,
Its 1 mouthful of locking, 2 mouthfuls and 3 mouthfuls of connections; When the control signal being provided by gas source interface 21 acts on its control end, its 1 mouthful and 2 mouthfuls of connections, 3 mouthfuls in locking states.The first control signal of protecting position valve 2 is provided by solenoid electric valve 8, and especially, this solenoid electric valve 8 can be two-position three way magnetic valve.First protects position valve 2 is switched on when gas control state, is losing gaseity in blocking.
The second Pneumatic valve 5 can be normal close type two-position three-way, and without control signal in the situation that, it is 1 years old
Mouth locking, 2 mouthfuls and 3 mouthfuls of connections; When solenoid electric valve 8 is during in on-state, to its control end, provide control signal, now, its 1 mouthful with 2 mouthfuls of connections, 3 mouthfuls in locking states.Second protects position valve 4 is provided by gas source interface 21 by control signal.Second protects position valve 4 is switched on when gas control state, is losing gaseity in blocking.
Please refer to Fig. 1, working principle during the present operating mode to normal operation is elaborated.
Under the operating mode of normal operation, air is adjusted to the required bleed pressure value of actuator, solenoid electric valve
8 power supply P is in obtaining electricity condition.Meanwhile, carry out the control signal I input electropneumatic valve positioner 6 of self tuning regulator or upper control system.So, after the feedback signal Y of the valve control cylinder 1 that electropneumatic valve positioner 6 collects input signal I and feedback means 9 compares, output bias signal IY.
When deviation signal IY is overgauge, electropneumatic valve positioner 6 output function on the first outlet side 10
1 mouthful of pressure to the first Pneumatic valve 3.Because the first Pneumatic valve 3, first is protected position valve 2 under gas control state, therefore, the bleed pressure of 1 mouthful of the first Pneumatic valve 3 is through 2 mouthfuls, by the first guarantor position valve 2 rodless cavities to valve control cylinder 1, so the air pressure of rodless cavity increases.
Meanwhile, the gas in the rod chamber of valve control cylinder 1, under gas control state second protect position valve 4 to
2 mouthfuls of the second Pneumatic valve 5.Now, because the second Pneumatic valve 5 is under gas control state, its 2 mouthfuls and 1 mouthful of connection, the source of the gas of rod chamber is got back to electropneumatic valve positioner 6, and discharged to atmosphere.
Like this, rodless cavity is higher than the pressure of rod chamber, so, the piston driving valve of promotion valve control cylinder 1
Bar moves down, thereby makes valve 20 be tending towards closing.
Feedback means 9 sends feedback quantity to electropneumatic valve positioner 6, thereby obtains new feedback quantity Y.Electricity
Pneumatic valve positioner 6 compares new feedback quantity Y and input signal I again, when deviation signal IY is in the dead zone range of valve control cylinder 1, electropneumatic valve positioner 6 is output function bleed pressure no longer, rodless cavity in valve control cylinder 1 equates with the air pressure of rod chamber, so valve 20 is just parked in to be controlled on the position requiring.
When deviation signal IY is negative deviation, electropneumatic valve positioner 6 output function on the second outlet side 11
1 mouthful of pressure to the second Pneumatic valve 5.Now, the second Pneumatic valve 5, second is protected position valve 4 under gas control state, so the bleed pressure on 1 mouthful of the second Pneumatic valve 5, through 2 mouthfuls, by the second guarantor position valve 4 rod chambers to valve control cylinder 1, causes the air pressure of rod chamber to increase.
Meanwhile, the source of the gas in rodless cavity first is protected 2 mouthfuls of position valve 2 to first Pneumatic valves 3 under gas control state,
Because the first Pneumatic valve 3 is under gas control state, its 2 mouthfuls and 1 mouthful of connection, so the source of the gas of rodless cavity is got back to electropneumatic valve positioner 6, and discharged to atmosphere.
Like this, rod chamber is higher than the pressure of rodless cavity, so, the piston driving valve of promotion valve control cylinder 1
Bar moves up, and makes valve 20 be tending towards opening.
Feedback means 9 sends feedback quantity to electropneumatic valve positioner 6, thereby obtains new feedback quantity Y.Electricity
Pneumatic valve positioner 6 compares new feedback quantity Y and input signal I again, in the time of in the dead zone range of deviation signal IY actuator, electropneumatic valve positioner 6 is output function bleed pressure no longer, rodless cavity in valve control cylinder 1 equates with the air pressure of rod chamber, and valve 20 requires on position with regard to being parked in new control.
Visible, by the present invention, can control valve 20 under the operating mode of normal operation, carry out opening and closing operations.
It accepts the current signal that regulator or control system are exported to electropneumatic valve positioner 6, then by electropneumatic valve positioner 6, by the current signal of input and the feedback signal of valve 20, compared, thereby record control deviation, and export corresponding air pressure through first according to this control thought, the second Pneumatic valve, first, second protects position valve to cylinder, thereby guarantee the valve location that certain control signal is corresponding certain, realize the action of control valve under nominal situation, overcome the shortcoming that control gear of the prior art can not meet process system and the energy quick closedown of Security Function Requirements valve or open fast.
Preferably, valve control system also comprises: the 3rd Pneumatic valve 14, gas source interface 21 is by the 3rd gas control
Wherein, the 3rd Pneumatic valve 14 and solenoid electric valve 8 form accident conditions control loop.Preferably,
Three Pneumatic valves 14 are normal close type two-position three-way, and its 1 mouthful in blocked state, under the effect without control signal, its 3 mouthfuls with 2 mouthfuls of connections; When solenoid electric valve 8 provides control signal in on-state, its 2 mouthfuls and 1 mouthful of connection, still, because 1 mouthful in blocked state, 2 mouthfuls can be used as locking, 3 atretostomias.
Preferably, valve control system also comprises: the 4th Pneumatic valve 15, gas source interface 21 is by the 4th gas control
Wherein, the 4th Pneumatic valve 15 forms three kinds of operating conditions loops.Especially, the 4th Pneumatic valve 15 can
For the two-position three way magnetic valve of normal close type, its 1 mouthful in blocked state, without control signal in the situation that, its 3 mouthfuls with 2 mouthfuls of connections; Under the effect that has control signal, its 2 mouthfuls and 1 mouthful of connection, but because 1 mouthful in blocked state, its 2 mouthfuls can be used as locking, 3 atretostomias.
Preferably, valve control system also comprises: caisson 7, and inlet opening is connected with gas source interface 21; The
One reduction valve 16, is arranged on the equipped at outlet port of caisson 7, and gas source interface 21 is connected with the 3rd Pneumatic valve 14 with the first reduction valve 16 by caisson 7 successively.Preferably, valve control system also comprises: the second reduction valve 17, is arranged between inlet end 12 and gas source interface 21.Preferably, valve control system also comprises: the control end that the control end of the 3rd reduction valve 18, the first Pneumatic valves 3 and second is protected position valve 4 is all connected with gas source interface 21 by the 3rd reduction valve 18.
Preferably, valve control system also comprises: one-way valve 19, gas source interface 21 is by one-way valve 19 and storage
The inlet opening of device of air 7 connects.
Wherein, caisson 7, one-way valve 19, the first reduction valve 16 form gas storage circuit system, its effect
When operation source of the gas is when break down, for the valve control cylinder 1 of Pneumatic piston provides operation source of the gas.Especially, on caisson 7, pressure gauge assembly, safety valve, discharging valve etc. are installed.Under nominal situation, from the source of the gas of gas source interface 21, through one-way valve 19, to caisson 7, inflate; Under accident conditions, caisson 7 provides operation source of the gas through the first reduction valve 16 to valve control cylinder 1.Preferably, the second reduction valve 17 is provided for the required operation source of the gas of valve control cylinder 1 for electropneumatic valve positioner 6, and the source of the gas pressure value of valve control cylinder 1 is set by the second reduction valve 17.
Preferably, electropneumatic valve positioner 6 collects according to the input signal providing to it and feedback means 9
Feedback signal is controlled the break-make of the first outlet side 10 and the second outlet side 11.
Preferably, the first guarantor position valve 2, the first Pneumatic valve 3, second guarantor's position valve 4 and the second Pneumatic valve 5 are
Normally close valve.
Under the accident conditions of power-off, solenoid electric valve 8 dead electricity, so, the first Pneumatic valve 3 in the present invention,
The 3rd Pneumatic valve 14 and first is protected position valve 2 signal source of the gas out of hand.Then, first protects position valve 2 lockings, being connected between the input of electropneumatic valve positioner 6 (output) pipeline and rodless cavity is blocked, 2 mouthfuls and 3 mouthfuls of connections of the 3rd Pneumatic valve 14, operation source of the gas is 30M3/h from caisson 7 through the maximum output capacity of the first reduction valve 16() by the 3rd Pneumatic valve 14, be directly inputted into rodless cavity.Meanwhile, the air pressure of rod chamber is through the second guarantor position valve 4 to second Pneumatic valves 5 and directly emptying, thereby realizes the quick closedown of accident conditions lower valve.
Under the accident conditions in source of dying or bleed pressure value during lower than the setting value of the 3rd reduction valve 18, control
The first Pneumatic valve 3 in device, the 3rd Pneumatic valve 14 and second are protected position valve 4 signal source of the gas out of hand.So, second protects position valve 4 lockings, being connected between electropneumatic valve positioner 6 input (output) pipelines and rod chamber is blocked, 2 mouthfuls and 3 mouthfuls of connections of the 4th Pneumatic valve 15, operation source of the gas is 30M3/h from caisson 7 through the maximum output capacity of the first reduction valve 16() by the 4th Pneumatic valve 15, be directly inputted into rod chamber, and the air pressure of rodless cavity is through the first guarantor position valve 2 to first Pneumatic valves 3 directly emptying of quilt, thereby realized accident conditions lower valve, opens fast.
Visible, the present invention has overcome control gear of the prior art and can not meet process system and Safety function and want
The shortcoming of asking the quick closedown of valve energy or opening fast, a kind of control gear that can meet process system and Security Function Requirements is provided, can realizes modulating valve and meet respectively process system and the desired quick closedown of Safety function or open fast at nominal situation, accident conditions.
Further, under accident conditions, during solenoid electric valve dead electricity, bleed pressure is by one of one group of Pneumatic valve
The direct air inlet of individual air inlet Pneumatic valve, and from another Pneumatic valve venting, realized the emergency cut-off of valve.When operating bleed pressure fault or while operating source of the gas lower than setting value, in gas holder, bleed pressure is organized a direct air inlet of air inlet Pneumatic valve of Pneumatic valve by another, and another Pneumatic valve venting, thereby realizes the emergency opening of valve.
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 (10)
1. a valve control system, is characterized in that, comprising: valve control cylinder (1), first is protected position
Valve (2), the first Pneumatic valve (3), second are protected position valve (4), the second Pneumatic valve (5), electropneumatic valve positioner
(6), gas source interface (21), solenoid electric valve (8) and feedback means (9);
Described electropneumatic valve positioner (6) comprises the first outlet side (10), the second outlet side (11) and enters
Gas end (12); Described the first outlet side (10) is protected position valve (2) by described the first Pneumatic valve (3) and described first successively and is connected with the rodless cavity of described valve control cylinder (1), described the second outlet side (11) is protected position valve (4) by described the second Pneumatic valve (5) and described second successively and is connected with the rod chamber of described valve control cylinder (1), and described gas source interface (21) is connected with the described second control end of protecting position valve (4) and described the first Pneumatic valve (3);
Described gas source interface (21) by described solenoid electric valve (8) and described first protect position valve (2) and
The control end of described the second Pneumatic valve (5) connects;
Described feedback means (9) is connected with the feedback input end (13) of described electropneumatic valve positioner (6), for detection of the state of the valve (20) being driven by described valve control cylinder (1).
2. valve control system according to claim 1, is characterized in that, described valve control system also comprises:
The 3rd Pneumatic valve (14), described gas source interface (21) is connected with described rodless cavity by described the 3rd Pneumatic valve (14), and described gas source interface (21) is connected with the control end of described the 3rd Pneumatic valve (14) by described solenoid electric valve (8).
3. valve control system according to claim 2, is characterized in that, described valve control system also comprises:
The 4th Pneumatic valve (15), described gas source interface (21) by described the 4th Pneumatic valve (15) with described in have bar
Chamber connects, and described gas source interface (21) is connected with the control end of described the 4th Pneumatic valve (15).
4. valve control system according to claim 2, is characterized in that, described valve control system also comprises:
Caisson (7), inlet opening is connected with described gas source interface (21);
The first reduction valve (16), is arranged on the equipped at outlet port of described caisson (7), and described gas source interface (21) is connected with described the 3rd Pneumatic valve (14) with described the first reduction valve (16) by described caisson (7) successively.
5. valve control system according to claim 1, is characterized in that, described valve control system also comprises:
The second reduction valve (17), is arranged between described inlet end (12) and described gas source interface (21).
6. valve control system according to claim 1, is characterized in that, described valve control system also comprises:
The 3rd reduction valve (18), the control end of described the first Pneumatic valve (3) is all connected with described gas source interface (21) by described the 3rd reduction valve (18) with the described second control end of protecting position valve (4).
7. valve control system according to claim 4, is characterized in that, described valve control system also comprises:
One-way valve (19), described gas source interface (21) is connected with the inlet opening of described caisson (7) by described one-way valve (19).
8. valve control system according to claim 1, is characterized in that, described the first Pneumatic valve (3), institute
State the second Pneumatic valve (5) and described solenoid electric valve (8) is two-position three-way valve.
9. valve control system according to claim 1, is characterized in that, described electropneumatic valve positioner (6)
The feedback signal collecting according to the input signal providing to it and described feedback means (9) controls described first
The break-make of outlet side (10) and described the second outlet side (11).
10. valve control system according to claim 1, is characterized in that, described first protects position valve (2), the first Pneumatic valve (3), second guarantor's position valve (4) and the second Pneumatic valve (5) is normally close valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310656076.5A CN103629421A (en) | 2013-12-06 | 2013-12-06 | Valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310656076.5A CN103629421A (en) | 2013-12-06 | 2013-12-06 | Valve control system |
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| CN103629421A true CN103629421A (en) | 2014-03-12 |
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ID=50210750
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| CN201310656076.5A Pending CN103629421A (en) | 2013-12-06 | 2013-12-06 | Valve control system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899829A (en) * | 2014-03-27 | 2014-07-02 | 超达阀门集团股份有限公司 | Double-acting pneumatic device with adjustment and fault security functions |
| CN104443129A (en) * | 2014-11-14 | 2015-03-25 | 重庆电讯职业学院 | Automatic lifting device and automatic lifting method of bicycle seat and bicycle |
| CN104976402A (en) * | 2014-04-04 | 2015-10-14 | 费希尔控制国际公司 | System and Method for Controlling a Valve |
| CN106907518A (en) * | 2017-04-21 | 2017-06-30 | 杭州富尚阀门有限公司 | Formula executing agency is established in the pneumatic reset of double acting by cable |
| CN109899586A (en) * | 2019-03-22 | 2019-06-18 | 深圳市新可优科技有限公司 | A kind of digital type intelligent valve positioner |
| CN112283187A (en) * | 2019-07-25 | 2021-01-29 | 上汽通用五菱汽车股份有限公司 | Air channel control device of vehicle door dismounting manipulator |
| CN113932057A (en) * | 2021-11-23 | 2022-01-14 | 国家能源集团内蒙古电力有限公司 | Valve control system, method and device and electronic equipment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899829A (en) * | 2014-03-27 | 2014-07-02 | 超达阀门集团股份有限公司 | Double-acting pneumatic device with adjustment and fault security functions |
| CN103899829B (en) * | 2014-03-27 | 2016-03-30 | 超达阀门集团股份有限公司 | A kind of double-action Pneumatic actuator with adjustment and failure safe function |
| CN104976402A (en) * | 2014-04-04 | 2015-10-14 | 费希尔控制国际公司 | System and Method for Controlling a Valve |
| CN104976402B (en) * | 2014-04-04 | 2019-08-27 | 费希尔控制国际公司 | System and method for control valve |
| CN104443129A (en) * | 2014-11-14 | 2015-03-25 | 重庆电讯职业学院 | Automatic lifting device and automatic lifting method of bicycle seat and bicycle |
| CN104443129B (en) * | 2014-11-14 | 2016-08-17 | 重庆电讯职业学院 | The apparatus for automatically lifting of bicycle seat, automatic lifting method and bicycle |
| CN106907518A (en) * | 2017-04-21 | 2017-06-30 | 杭州富尚阀门有限公司 | Formula executing agency is established in the pneumatic reset of double acting by cable |
| CN106907518B (en) * | 2017-04-21 | 2023-09-12 | 杭州富尚阀门有限公司 | Double-acting pneumatic reset electric open type actuating mechanism |
| CN109899586A (en) * | 2019-03-22 | 2019-06-18 | 深圳市新可优科技有限公司 | A kind of digital type intelligent valve positioner |
| CN112283187A (en) * | 2019-07-25 | 2021-01-29 | 上汽通用五菱汽车股份有限公司 | Air channel control device of vehicle door dismounting manipulator |
| CN113932057A (en) * | 2021-11-23 | 2022-01-14 | 国家能源集团内蒙古电力有限公司 | Valve control system, method and device and electronic equipment |
| CN113932057B (en) * | 2021-11-23 | 2024-03-29 | 国家能源集团内蒙古电力有限公司 | Valve control system, method and device and electronic equipment |
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Application publication date: 20140312 |