CN202531969U - Control valve bank for pneumatic positioner - Google Patents
Control valve bank for pneumatic positioner Download PDFInfo
- Publication number
- CN202531969U CN202531969U CN2012200339680U CN201220033968U CN202531969U CN 202531969 U CN202531969 U CN 202531969U CN 2012200339680 U CN2012200339680 U CN 2012200339680U CN 201220033968 U CN201220033968 U CN 201220033968U CN 202531969 U CN202531969 U CN 202531969U
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- solenoid valve
- valve
- acting cylinder
- control
- self
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Abstract
A control valve bank for a pneumatic positioner is formed by combining two independent two-position three-way straight-guide electromagnetic valves with self-protecting functions. Positive impulse voltage and negative impulse voltage are applied to electromagnetic coils of the two electromagnetic valves to control the position of a valve stem of a regulating valve, so as to control the overflowing area of the regulating valve and control the flow and pressure of the regulating valve. The power consumption of the electromagnetic coils is reduced, the service life of the control valve bank is prolonged, the micropower control is achieved, and no compressed gas is consumed in a stable state.
Description
Technical field
The utility model relates to pneumatic type modulating valve positioning work piece technical field, is specifically related to the control valve group of pneumatic positioner.
Background technique
In FLUID TRANSPORTATION control field, generally form by various valves and pipeline.Valve mainly is to realize the switch of FLUID TRANSPORTATION and the control requirement of flow pressure.In valve modulating valve, also to be referred to as control valve be flow and the adjusting of pressure that is used for realizing in the fluid circuit.Modulating valve mainly is made up of valve body, spool, valve rod etc.Wherein valve body is made up of sealing, mounting flange and the valve seat of valve.Spool is made up of resetting-mechanism, valve plate etc.Valve rod is a controlling mechanism of realizing the overflow section size (aperture) of modulating valve.Valve rod on the modulating valve is connected with positioning means, realizes area of passage (aperture) size of modulating valve is realized control.Thereby make modulating valve to realize flow control and pressure control to ducted fluid.Positioning work piece on the modulating valve generally has setting device, feedback mechanism, driving mechanism etc.
Positioning work piece generally is divided three classes, i.e. electrodynamic type, pneumatic type, self-powering type.The pneumatic type positioning work piece is generally formed by setting coil, electromagnetism leverage, nozzle flapper, feedback mechanism, diaphragm type single-acting cylinder etc.Its working principle is the given current signal of setting on the coil through being added in; Regulate the distance of the baffle plate on the nozzle through magnet in the coil and electromagnetism leverage and regulate the pressure reduction that control gaseous is imported and exported at baffle plate; And then the air pressure of adjusting diaphragm type cylinder intake end; This air pressure is that compressed gas source is the pressure difference that forms through the nozzle steel plate, and the pressurized gas that therefore need constantly feed steady pressure in the import of nozzle just can be so that outlet forms the inlet outlet pressure differential that institute's nozzle flapper gap changes.Realize the adjusting of stem position through the equilibrium of forces of diaphragm type single-acting cylinder spring through the pressurized gas behind the nozzle flapper.The distance of also regulating between nozzle flapper through feedback mechanism simultaneously realizes the pressure control to diaphragm type single-acting cylinder inlet end.Its shortcoming is when work, except requiring given electrical signal, also to require have stable source of the gas to guarantee the work of positioning work piece; Long-term work lower compression gas consumption is very big; Corresponding ABAP Adapter and control source of the gas need be provided under the perhaps unattended especially in the open air working environment, make the application of pneumatic control valve receive very big restriction.
The model utility content
In order to overcome the shortcoming of above-mentioned existing technology, the purpose of the utility model is to provide the control valve group of pneumatic positioner, has reduced the power consumption of electromagnetic coil and has prolonged working life, has accomplished little power consumption control, at steady state compressed gas consuming not.
In order to achieve the above object, the technological scheme taked of the utility model is:
The control valve group of pneumatic positioner; Comprise the diaphragm type single-acting cylinder 1 that links to each other with regulating valve stem; The single-acting cylinder spring 2 of diaphragm type single-acting cylinder 1 is connected with the valve rod 3 that regulating spool links to each other; Diaphragm type single-acting cylinder 1 is provided with the barrier film 4 in the single-acting cylinder; The single-acting cylinder suction port 5 of diaphragm type single-acting cylinder 1 is communicated with through the relief opening on first solenoid valve 7, second solenoid valve 11 and second solenoid valve 11 14 successively; First solenoid valve 7 is provided with first electromagnetic coil 6, the first self-insurance permanent magnet 8, first Returnning spring 9, inlet for pressurised gas 10, the second solenoid valves 11 and is provided with the second self-insurance permanent magnet 12, second Returnning spring 13, relief opening 14, second electromagnetic coil 15.
Described first solenoid valve 7, second solenoid valve 11 are two-bit triplet self-insurance solenoid valve or two-bit triplet direct leading type solenoid valve, and are combined on the valve body 22, and realize that through gas circuit between valve 20 intercommunication of two solenoid valves connects.
The spool mechanism that described first solenoid valve 7, second solenoid valve 11 adopt microminiaturized direct leading type.
Described first solenoid valve 7 adopts the first self-insurance permanent magnet 8 and first electromagnetic coil 6 to combine through magnetic isolation board 19.
Described second solenoid valve 11 adopts the second self-insurance permanent magnet 12 and second electromagnetic coil 15 to combine through magnetic isolation board 19.
The utility model has reduced the power consumption of electromagnetic coil and has prolonged working life, has accomplished little power consumption control, at steady state compressed gas consuming not.
Description of drawings
Fig. 1 is the pneumatic principle schematic representation of the utility model.
Fig. 2 is the concrete structure schematic representation of the utility model.
Fig. 3 is the A-A air outlet sectional drawing of Fig. 2.
Fig. 4 is a gas circuit sectional drawing between the B-B valve of Fig. 2.
Embodiment
Below through accompanying drawing the utility model is described further.
With reference to Fig. 1; The control valve group of pneumatic positioner; Comprise the diaphragm type single-acting cylinder 1 that links to each other with regulating valve stem; The single-acting cylinder spring 2 of diaphragm type single-acting cylinder 1 is connected with the valve rod 3 that regulating spool links to each other; Diaphragm type single-acting cylinder 1 is provided with the barrier film 4 in the single-acting cylinder; The single-acting cylinder suction port 5 of diaphragm type single-acting cylinder 1 is communicated with through the relief opening on first solenoid valve 7, second solenoid valve 11 and second solenoid valve 11 14 successively, and first solenoid valve 7 is provided with first electromagnetic coil 6, the first self-insurance permanent magnet 8, first Returnning spring 9, inlet for pressurised gas 10, the second solenoid valves 11 and is provided with the second self-insurance permanent magnet 12, second Returnning spring 13, relief opening 14, second electromagnetic coil 15.
Described first solenoid valve 7, second solenoid valve 11 are two-bit triplet self-insurance solenoid valve or two-bit triplet direct leading type solenoid valve, and are combined on the valve body 22, and realize that through gas circuit between valve 20 intercommunication of two solenoid valves connects.
The spool mechanism that described first solenoid valve 7, second solenoid valve 11 adopt microminiaturized direct leading type.
Described first solenoid valve 7 adopts the first self-insurance permanent magnet 8 and first electromagnetic coil 6 to combine through magnetic isolation board 19.
Described second solenoid valve 11 adopts the second self-insurance permanent magnet 12 and the two or two electromagnetic coil 15 to combine through magnetic isolation board 19.
The working principle of the utility model does;
The utility model is used by the series connection of two two-bit triplet self-insurance solenoid valves; Bistable state combination through two solenoid valves realizes the control to the diaphragm cylinder suction port pressure of modulating valve; Further through two independently the combinations of states of two-bit triplet direct leading type solenoid valve can realize the pressure requirement as required of the suction port 5 of the diaphragm cylinder on the modulating valve 1 is guaranteed certain gas pressure; Realize rising, location and the decline of valve rod 3 positions; The size adjustment of realization modulating valve overflow section long-pending (aperture) and given is contained in two solenoid valves on the same valve body 21, further to reduce overall volume.
With reference to Fig. 2, Fig. 3 and Fig. 4; The valve rod propradation: when the valve rod that needs modulating valve 3 rises when making the overflow section long-pending (aperture) of modulating valve increase, this moment first solenoid valve 7 first electromagnetic coil, 6 logical forward dc pulsed voltages, first iron core 23 of first solenoid valve 7 breaks away from the attraction force of the first self-insurance permanent magnet 8 and rises; Get into the suction port 5 of single-acting cylinders this moment through first air inlet control on first solenoid valve of having opened 7 mouthfuls 22 from the pressurized gas of inlet for pressurised gas 10; The air inlet section pressure of single-acting cylinder raises, and single-acting cylinder spring 2 is compressed, and the valve rod 3 that links to each other with regulating spool begins to rise; When reaching when needing desired location; First electromagnetic coil, the 6 logical reverse dc pulse voltages of first solenoid valve 7, first iron core 23 of first solenoid valve 7 descends and is attracted to keep by the first self-insurance permanent magnet 8 at this moment, and the air inlet control mouth 22 on first solenoid valve 7 is closed at this moment; The suction port 5 of single-acting cylinder is realized pressurize, has accomplished the rising of valve rod 3 this moment and has stopped action.
The valve rod hold mode: when first iron core 23 of first solenoid valve 7 is in when the next, the air inlet control on this moment first solenoid valve 7 mouthfuls 22 is closed, and the suction port 5 and the pressurized gas suction port 10 of single-acting cylinder are in the partition state.Second iron core 18 of while second solenoid valve 11 is in upper, and the suction port 5 of single-acting cylinder and the relief opening 14 on second solenoid valve 11 also are in the partition state at this moment.Relief opening 14 on single-acting cylinder suction port 5 and pressurized gas suction port 10 and second solenoid valve 11 is in the partition state simultaneously like this.Realized that the air pressure in the single-acting cylinder suction port 5 keeps.
Valve rod decline state: but need be with the area of passage (aperture) of modulating valve when reducing; Give second electromagnetic coil, 15 logical reverse dc pulse voltages of second solenoid valve 11 this moment; Make second iron core 18 of second solenoid valve 11 descend; Exhaust control mouth 17 on second solenoid valve 11 is opened at this moment; Pressed gas in the single-acting cylinder suction port 5 communicates with relief opening 14 on second solenoid valve 11 through the control of the exhaust on gas circuit between valve 20 and second solenoid valve 11 mouthfuls 17, and the pressure in this moment single-acting cylinder suction port 5 descend, owing to the effect of single-acting cylinder spring 2 makes valve rod 3 declines.Realization reduces the function of the area of passage (aperture) of modulating valve.Arrive and set when requiring; Give second electromagnetic coil, 15 logical direct impulse voltages of second solenoid valve 11; Make second iron core 18 of second solenoid valve 11 rise; Exhaust control mouth 17 on second solenoid valve 11 is closed at this moment, has cut off the passage of the relief opening 14 on the single-acting cylinder suction port 5 and second solenoid valve 11.Realization is to the pressure holding function of single-acting cylinder suction port 5.
Before starting working with outage after when working again, through control system the state of two solenoid valves is carried out reset processing, be in claimed condition with the iron core of guaranteeing two solenoid valves.
Second iron core 18 and first movement travel of iron core 23 in solenoid valve very I reach 0.6mm, and whole iron core and Sealing weight are no more than 20g.Realize the low inertia speed up of control iron core motion like this, also improved reliability, significantly reduced the power consumption of electromagnetic coil.
Further use, the utility model is combined as a controller with the gas electric type of complete control function because the advantage of its volume power consumption can directly be put into corresponding controller.
Further application can use solar panel and chargeable cell to realize not having the work of ABAP Adapter.
Can combine with electronic controller further and realize high-protection level and the highest explosive-proof grade and the explosion-proof electric apparatus grade of intrinsic safety type.
Claims (5)
1. the control valve group of pneumatic positioner; Comprise the diaphragm type single-acting cylinder (1) that links to each other with regulating valve stem; The single-acting cylinder spring (2) of diaphragm type single-acting cylinder (1) is connected with the valve rod (3) that regulating spool links to each other; Diaphragm type single-acting cylinder (1) is provided with the barrier film (4) in the single-acting cylinder; It is characterized in that: the single-acting cylinder suction port (5) of diaphragm type single-acting cylinder (1) is communicated with through the relief opening (14) on first solenoid valve (7), second solenoid valve (11) and second solenoid valve (11) successively; First solenoid valve (7) is provided with first electromagnetic coil (6), the first self-insurance permanent magnet (8), first Returnning spring (9), inlet for pressurised gas (10), and second solenoid valve (11) is provided with the second self-insurance permanent magnet (12), second Returnning spring (13), relief opening (14), second electromagnetic coil (15).
2. the control valve group of pneumatic positioner according to claim 1; It is characterized in that: described first solenoid valve (7), second solenoid valve (11) are two-bit triplet self-insurance solenoid valve or two-bit triplet direct leading type solenoid valve; And be combined on the valve body (22), and realize that through gas circuit (20) between valve the intercommunication of two solenoid valves connects.
3. the control valve group of pneumatic positioner according to claim 1 is characterized in that: the spool mechanism that described first solenoid valve (7), second solenoid valve (11) adopt microminiaturized direct leading type.
4. the control valve group of pneumatic positioner according to claim 1 is characterized in that: described first solenoid valve (7) adopts the first self-insurance permanent magnet (8) and first electromagnetic coil (6) to combine through magnetic isolation board (19).
5. the control valve group of pneumatic positioner according to claim 1 is characterized in that: described second solenoid valve (11) adopts the second self-insurance permanent magnet (12) and second electromagnetic coil (15) to combine through magnetic isolation board (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200339680U CN202531969U (en) | 2012-02-03 | 2012-02-03 | Control valve bank for pneumatic positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200339680U CN202531969U (en) | 2012-02-03 | 2012-02-03 | Control valve bank for pneumatic positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531969U true CN202531969U (en) | 2012-11-14 |
Family
ID=47133156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200339680U Expired - Fee Related CN202531969U (en) | 2012-02-03 | 2012-02-03 | Control valve bank for pneumatic positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563191A (en) * | 2012-02-03 | 2012-07-11 | 深圳乐满油气技术有限公司 | Control valve group for pneumatic positioner |
| CN104482277A (en) * | 2014-12-31 | 2015-04-01 | 安徽江淮汽车股份有限公司 | Electric control duplex solenoid valve |
| CN108644454A (en) * | 2018-07-26 | 2018-10-12 | 大连亨利测控仪表工程有限公司 | A kind of electrical integrated control system of adjustment type pneumatic actuator |
-
2012
- 2012-02-03 CN CN2012200339680U patent/CN202531969U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563191A (en) * | 2012-02-03 | 2012-07-11 | 深圳乐满油气技术有限公司 | Control valve group for pneumatic positioner |
| CN104482277A (en) * | 2014-12-31 | 2015-04-01 | 安徽江淮汽车股份有限公司 | Electric control duplex solenoid valve |
| CN108644454A (en) * | 2018-07-26 | 2018-10-12 | 大连亨利测控仪表工程有限公司 | A kind of electrical integrated control system of adjustment type pneumatic actuator |
| CN108644454B (en) * | 2018-07-26 | 2024-03-15 | 大连亨利测控仪表工程有限公司 | Electrical integrated control system for adjusting type pneumatic actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20210203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |