CN204083458U - The Stroke Control output amplifier of intelligent valve positioner - Google Patents
The Stroke Control output amplifier of intelligent valve positioner Download PDFInfo
- Publication number
- CN204083458U CN204083458U CN201420528388.8U CN201420528388U CN204083458U CN 204083458 U CN204083458 U CN 204083458U CN 201420528388 U CN201420528388 U CN 201420528388U CN 204083458 U CN204083458 U CN 204083458U
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- China
- Prior art keywords
- chamber
- air inlet
- exhaust
- valve head
- protruded
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of Stroke Control output amplifier of intelligent valve positioner, comprise the elastomer diaphragm being positioned at pneumatic actuator air chamber, the working surface side of elastomer diaphragm protrudes chamber respectively by air inlet and exhaust protrusion chamber is connected with air inlet valve head and exhaust valve head, makes the protrusion height that chamber is protruded in exhaust be greater than the protrusion height that chamber is protruded in air inlet.When the inlet and outlet room of pneumatic actuator enters identical control signal, the stroke of exhaust valve head is greater than the stroke of air inlet valve head, when elastomer diaphragm works in discharge directions, ensure that the air pressure in actuator also can be drained rapidly, realize the action almost symmetry of actuator under the control signal that airintake direction is identical with discharge directions, greatly improve the control performance of positioning work piece, also for the further optimization of control software design provides precondition.The stability of positioning work piece is improved greatly, and delayed return difference is reduced further, the overall performance of positioning work piece is improved comprehensively.
Description
Technical field
The utility model relates to a kind of intelligent valve positioner, is specifically related to a kind of asymmetric Stroke Control output amplifier of intelligent valve positioner.
Background technique
The I/P amplifier of current intelligent valve positioner all adopts air inlet, the exhaust structure of symmetrical stroke, and because inlet air source is pressurized gas, during air inlet, pressurized gas enter rapidly in final controlling element, and period of intake is short, and its pneumatic actuator action is fast.And when being vented, because the air pressure in pneumatic actuator cavity is relatively low, when using the stroke valve head aperture identical with inlet end, air displacement and speed relatively slow, the action of pneumatic actuator is just corresponding slower, make in the output control procedure of positioning work piece like this, air inlet and exhaust create asymmetry in amplifier link, and stable control overflow rapidly will be reached just have to increase compute mode and control logic link in the algorithm of software, so often easily produce overshoot overshoot phenomenon, it can be the phenomenon producing the even delayed return difference increase of vibration during especially severe, make the job insecurity of actuator control valves.
Model utility content
The purpose of this utility model is to provide a kind of pneumatic actuator of final controlling element that makes to operate steadily, and improves the asymmetric Stroke Control output amplifier of positioning work piece overall performance.
The utility model discloses a kind of Stroke Control output amplifier of intelligent valve positioner, comprise the elastomer diaphragm being positioned at amplifier pneumatic actuator air chamber, the working surface side of this elastomer diaphragm is communicated with air inlet respectively and protrudes chamber and exhaust protrusion chamber, and the outer end that chamber is protruded in air inlet protrusion chamber and exhaust acts on air inlet valve head respectively and is vented valve head.Described exhaust is protruded the protrusion height of chamber and is greater than the protrusion height that chamber is protruded in air inlet, to form in intake process and exhaust process both asymmetric strokes.
The protrusion height that chamber is protruded in exhaust is greater than the protrusion height that chamber is protruded in air inlet, when entering identical control (PWM) signal like this in the inlet and outlet room of pneumatic actuator, the stroke of exhaust valve head is greater than the stroke of air inlet valve head, when elastomer diaphragm works in discharge directions, ensure that the air pressure in actuator also can be drained rapidly, thus realize the action almost symmetry of actuator under the control signal that airintake direction is identical with discharge directions, greatly improve the control performance of positioning work piece, also for the further optimization of control software design provides precondition.Can complete optimization control process with a large amount of software programming time, the stability of positioning work piece is improved greatly, and delayed return difference is reduced further, the overall performance of positioning work piece is improved comprehensively.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that A in Fig. 1 is to schematic diagram.
Fig. 3 is that B in Fig. 1 is to schematic diagram.
Fig. 4 is perspective view of the present utility model.
Embodiment
As shown in Figures 1 to 4, the utility model discloses a kind of Stroke Control output amplifier of intelligent valve positioner, comprise the elastomer diaphragm 10 being positioned at pneumatic actuator air chamber, the working surface side of elastomer diaphragm 10 is communicated with air inlet respectively and protrudes chamber 11 and exhaust protrusion chamber 12, and the outer end that chamber 12 is protruded in air inlet protrusion chamber 11 and exhaust acts on air inlet valve head 20 respectively and is vented valve head 30.Exhaust is protruded the protrusion height of chamber 12 and is greater than the protrusion height that chamber 11 is protruded in air inlet, to form in intake process and exhaust process both asymmetric strokes.
Elastomer diaphragm 10 offers the mounting hole 13 that some apertures are not waited.
The protrusion height that chamber 12 is protruded in exhaust is greater than the protrusion height that chamber 11 is protruded in air inlet, entering like this at pneumatic actuator, when exhaust chamber enters identical control (PWM) signal, the stroke of exhaust valve head 30 is greater than the stroke of air inlet valve head 20, when elastomer diaphragm 10 works in discharge directions, ensure that the air pressure in actuator also can be drained rapidly, thus realize the action almost symmetry of actuator under the control signal that airintake direction is identical with discharge directions, greatly improve the control performance of positioning work piece, also for the further optimization of control software design provides precondition.Can complete optimization control process with a large amount of software time, the stability of positioning work piece is improved greatly, and delayed return difference is reduced further, the overall performance of positioning work piece is improved comprehensively.
Claims (1)
1. the Stroke Control output amplifier of an intelligent valve positioner, comprise the elastomer diaphragm being positioned at amplifier pneumatic actuator air chamber, the working surface side of this elastomer diaphragm is communicated with air inlet respectively and protrudes chamber and exhaust protrusion chamber, and the outer end that chamber is protruded in air inlet protrusion chamber and exhaust acts on air inlet valve head respectively and is vented valve head; It is characterized in that: described exhaust is protruded the protrusion height of chamber and is greater than the protrusion height that chamber is protruded in air inlet, to form in intake process and exhaust process both asymmetric strokes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528388.8U CN204083458U (en) | 2014-09-16 | 2014-09-16 | The Stroke Control output amplifier of intelligent valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528388.8U CN204083458U (en) | 2014-09-16 | 2014-09-16 | The Stroke Control output amplifier of intelligent valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083458U true CN204083458U (en) | 2015-01-07 |
Family
ID=52176179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420528388.8U Expired - Fee Related CN204083458U (en) | 2014-09-16 | 2014-09-16 | The Stroke Control output amplifier of intelligent valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083458U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465469A (en) * | 2015-12-11 | 2016-04-06 | 北航温州研究院 | Rectangular intelligent valve locator |
| CN105465458A (en) * | 2015-12-11 | 2016-04-06 | 北航温州研究院 | Positioning device of rectangular intelligent valve positioner |
| CN105465468A (en) * | 2015-12-11 | 2016-04-06 | 北航温州研究院 | Pneumatic unit device of rectangular intelligent valve locator |
| CN105485409A (en) * | 2016-01-05 | 2016-04-13 | 北航温州研究院 | Circular intelligent valve locator |
| CN105508714A (en) * | 2016-01-05 | 2016-04-20 | 北航温州研究院 | Packaging shell device of circular intelligent valve positioner |
| CN105508702A (en) * | 2015-12-11 | 2016-04-20 | 北航温州研究院 | Packaging shell device of rectangular intelligent valve positioner |
| CN105570523A (en) * | 2016-01-05 | 2016-05-11 | 北航温州研究院 | Linear displacement measurement device for round intelligent valve positioner |
-
2014
- 2014-09-16 CN CN201420528388.8U patent/CN204083458U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465469A (en) * | 2015-12-11 | 2016-04-06 | 北航温州研究院 | Rectangular intelligent valve locator |
| CN105465458A (en) * | 2015-12-11 | 2016-04-06 | 北航温州研究院 | Positioning device of rectangular intelligent valve positioner |
| CN105465468A (en) * | 2015-12-11 | 2016-04-06 | 北航温州研究院 | Pneumatic unit device of rectangular intelligent valve locator |
| CN105508702A (en) * | 2015-12-11 | 2016-04-20 | 北航温州研究院 | Packaging shell device of rectangular intelligent valve positioner |
| CN105465458B (en) * | 2015-12-11 | 2017-11-24 | 康赛特阀门集团有限公司 | A kind of positioner of rectangle intelligent valve positioner |
| CN105465469B (en) * | 2015-12-11 | 2017-11-24 | 康赛特阀门集团有限公司 | A kind of rectangle intelligent valve positioner |
| CN105485409A (en) * | 2016-01-05 | 2016-04-13 | 北航温州研究院 | Circular intelligent valve locator |
| CN105508714A (en) * | 2016-01-05 | 2016-04-20 | 北航温州研究院 | Packaging shell device of circular intelligent valve positioner |
| CN105570523A (en) * | 2016-01-05 | 2016-05-11 | 北航温州研究院 | Linear displacement measurement device for round intelligent valve positioner |
| CN105570523B (en) * | 2016-01-05 | 2018-03-02 | 康赛特阀门集团有限公司 | A kind of linear measuring system of circular intelligent valve positioner |
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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: 20150107 Termination date: 20150916 |
|
| EXPY | Termination of patent right or utility model |