CN88211607U - Multifunctional pneumatic valve positioner - Google Patents
Multifunctional pneumatic valve positioner Download PDFInfo
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- CN88211607U CN88211607U CN 88211607 CN88211607U CN88211607U CN 88211607 U CN88211607 U CN 88211607U CN 88211607 CN88211607 CN 88211607 CN 88211607 U CN88211607 U CN 88211607U CN 88211607 U CN88211607 U CN 88211607U
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- valve
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Abstract
The utility model relates to a valve positioner which is characterized in that the valve position and the input pressure signal of an adjusting instrument are in the proportional relation. The utility model is characterized in that the utility model is composed of a measurement component, a valve guiding component and a feedback component. The multifunctional pneumatic valve positioner can match with a pneumatic thin-film actuator as well as match with a pneumatic piston actuator, and also matching with adjusting valves acting with the straight travel and the angle travel. Meanwhile, the multifunctional pneumatic valve positioner can realize the split-travel control and correct flow characteristic of the valve. The multifunctional pneumatic valve positioner is provided with a valve position indicating mechanism and can be widely applied to industrial departments, s uch as the chemical industry, the petroleum, the metallurgy, power stations, the light textile, etc.
Description
The utility model is the positioning work piece that a kind of valve is used, and is that the proportional pass of pressure signal of valve location and regulation meter input is the valve positioner of feature specifically.In industrial automation system with the supporting use of pneumatic control valve, improve the linearity of stem position, overcome the frictional force of valve rod and eliminate the influence of being transferred the pressure medium variation, thereby guarantee the pressure signal realization correct location of valve location, can be widely used among the industrial departments such as chemical industry, oil, metallurgy, power station, light textile by the regulation meter input.
At present, both at home and abroad pneumatic positioner valve has two kinds of displacement balance and principle of moment balance, though the pneumatic positioner valve for the displacement balance principle is simple in structure, but the required precision of components and parts is higher, the poor-performing of anti-the operational vibration, so can not satisfy frequency sweep vibration requirement, though and for the pneumatic positioner valve of principle of moment balance, can overcome the shortcoming of the pneumatic positioner valve of above-mentioned displacement balance principle, but only can distribution move diaphragm actuator, can not distribution move piston actuator, the modulating valve that only can join the straight journey action, modulating valve that can not supporting role's stroke action, can not realize simultaneously the Flow characteristics of branch process control and correction valve, also not have index valve position mechanism.
The purpose of this utility model provides a kind of anti-preferably operational vibration performance, can distribution move diaphragm actuator, can distribution move piston actuator again, the modulating valve that also can join straight journey action and angle stroke action, the Flow characteristics that can realize dividing process control simultaneously and revise valve, and the multi-functional pneumatic positioner valve that has indication valve position mechanism.
For finishing the technological scheme that above-mentioned purpose is taked: the utility model is divided into measurement component, pilot valve components and feedback element three big parts.Measurement component connects main lever by the bellows lower end, and main lever one end is fixed a fulcrum, and the other end connects guiding valve; Pilot valve components is made up of single output interface or dual output interface, and diaphragm actuator is moved in single output interface distribution, and piston actuator is moved in the distribution of dual output interface; Feedback element adopts stroke adjustment piece, feedback rod, feedback cam, roller, pair lever and feedback spring to be connected to each other formation.Stroke adjustment piece in the feedback element and feedback rod are removed, change the rotary motion valve core and with the coaxial installation of feedback cam; Just realize the modulating valve of angle stroke action.
The utility model embodiment 1 is described in detail in conjunction with the accompanying drawings.
Fig. 1 is Multifunctional, air movable valve locator structure figure;
Fig. 2 is the positive interaction diaphragm actuator, positive interaction positioning work piece movement structure figure;
Fig. 3 is the positive interaction diaphragm actuator; Reaction positioning work piece movement structure figure;
Fig. 4 is the reaction diaphragm actuator, positive interaction positioning work piece movement structure figure;
Fig. 5 is the reaction diaphragm actuator, reaction positioning work piece movement structure figure;
Fig. 6 is the action of piston actuator positive interaction positioning work piece, feedback cam formal dress;
Fig. 7 is piston actuator reaction positioning work piece action, and cam is counter adorns for feedback;
Fig. 8 is the angular stroke control valve structural drawing;
Fig. 9 is for dividing process control feedback cam three curved-surface structure schematic representation.
According to shown in Figure 1, press principle of moment balance work.A. bellows 1 lower end connects main lever 2, and an end of main lever 2 is fixed a fulcrum 3, and the other end connects guiding valve 13 and constitutes measurement component, when pressure P feeds bellows 1, when pressure P increases, main lever 2 is counterclockwise rotated around fulcrum 3, slide valve lever moves down in the guiding valve 13.B. pilot valve components can be made up of single output interface or dual output interface, and the Ps among Fig. 1 is a bleed pressure, and P1 and P2 are delivery pressure, blocking one delivery outlet as required during use.Because slide valve lever moves downwards in the above-mentioned described guiding valve 13, and bleed pressure Ps is communicated with delivery pressure P1 or P2, then delivery pressure P1 or P2 increase, and push rod 15 moves downward or upward in the diaphragm actuator 12.C. stroke adjustment piece 11 1 ends in the feedback element connect push rod 15, the other end connects feedback rod 10, and feedback rod 10 cooperates with feedback cam 9, and establish fulcrum 8, a roller 7 is put in feedback cam 9 upper ends, and roller 7 connects pays lever 5, pays lever 5 the other ends and establishes fulcrum 6, paying the middle feedback spring 4 that connects of lever 5, spring 4 the other ends connect main lever 2 and line line pipe 1.Because above-mentioned push rod 15 moves down, drive feedback rod 10 and feed back cam 9 by stroke adjustment piece 11 around fulcrum 8 rotations, by roller 7 pair lever 5 is rotated around fulcrum 6, this moment, feedback spring 4 was compressed, when feedback spring 4 acts on compressive force on the main lever 2 and bellows 1 the power on the main lever 2 of acting on when reaching equalising torque, this moment, certain incoming pressure was just corresponding to the certain position of valve 16.
Embodiment two, join the positive interaction pneumatic diaphragn actuating mechanism as shown in Figure 2 with single output interface, and P1 is communicated with Ps, the P2 blocking, and when the incoming pressure increase, actuator's push rod 15 moves down, and realizes actuator's positive interaction action, and feedback cam 9 is a formal dress.
Embodiment three, join the positive interaction pneumatic diaphragn actuating mechanism as shown in Figure 3 with single output interface, and P2 is communicated with Ps, the P1 blocking, and when the incoming pressure increase, actuator's push rod 15 moves up, and realizes actuator's reaction action, and feedback cam 9 is anti-the dress.
Embodiment four, join the reaction pneumatic diaphragn actuating mechanism as shown in Figure 4 with single output interface, and P1 is communicated with Ps, the P2 blocking, and when the incoming pressure increase, actuator's push rod 15 moves up, and realizes actuator's positive interaction action, and feedback cam 9 is anti-the dress.
Embodiment five, join the reaction pneumatic diaphragn actuating mechanism as shown in Figure 5 with single output interface, and P2 is communicated with Ps, the P1 blocking, and power increases after input, and actuator's push rod 15 moves down, and realizes actuator's reaction action, and feedback cam 9 is a formal dress.
Embodiment six, pneumatic diaphragn actuating mechanism is changed the moving piston actuator of distribution, be the dual output interface as shown in Figure 6, P1 is communicated with the piston upper cylinder, P2 communicates with the piston lower cylinder, and when the incoming pressure increase, actuator's push rod 15 moves down, realize actuator's positive interaction action, feedback cam 9 is a formal dress.
Embodiment seven, pneumatic diaphragn actuating mechanism is changed the moving piston actuator of distribution, be the dual output interface as shown in Figure 7, P1 is communicated with the piston lower cylinder, P2 communicates with the piston upper cylinder, and when the incoming pressure increase, actuator's push rod 15 moves up, realize actuator's reaction action, feedback cam 9 is anti-dress.
Embodiment eight, the stroke adjustment piece 11 in the feedback element and feedback rod 10 removed, the spool 14 of angle stroke and the 9 coaxial installations of feedback cam as shown in Figure 8, promptly applicable to 0～90 ° of angular stroke control valve.
Embodiment nine, and feedback cam 9 among Fig. 1 is designed to three curved surfaces, and as shown in Figure 9, the A curved surface is a fundamental characteristics, and B curved surface and C curved surface therefore when 0～100% input reference signal, need the action of valve total travel for dividing process control, then select the A curved surface for use.If 50～100% input reference signals need the action of valve total travel, then select the B curved surface for use.If 0～50% input reference signal needs the action of valve total travel, then select the C curved surface for use.B or C curved surface just can be realized the branch process control like this, change the Flow characteristics that the A curve form just can be revised valve.
Adorn a pointer on the axle of the feedback cam 9 in Fig. 1, can indicate the valve position size.
Can finish goal of the invention of the present utility model according to nine above-mentioned embodiments.
Claims (7)
1, the multi-functional pneumatic positioner valve of the proportional relation of pressure signal of a kind of valve location and regulation meter input, form by bellows, guiding valve, cam, it is characterized in that: a. measurement component: bellows 1 lower end connects main lever 2, main lever 2 one ends are fixed in fulcrum 3, and the other end connects guiding valve 13; B. pilot valve components is made up of single output interface or dual output interface; C. feedback element adopts stroke adjustment piece 11, feedback thick stick 10, feedback cam 9.Roller 7, pair lever 5 and feedback spring 4 are connected to each other formation.
2, multi-functional pneumatic positioner valve according to claim 1 is characterized in that pilot valve components joins the positive interaction diaphragm actuator, and the positive interaction positioning work piece moves its single output interface P1 and communicates P2 blocking, feedback cam 9 formal dress with Ps; Join the positive interaction diaphragm actuator, during the action of reaction positioning work piece, P2 communicates with Ps, the P1 blocking, and feedback cam 9 is instead adorned.
3, multi-functional pneumatic positioner valve according to claim 1 is characterized in that pilot valve components joins the reaction diaphragm actuator, and the positive interaction positioning work piece moves its single output interface P1 and communicates with Ps, the P2 blocking, and feedback cam 9 is instead adorned; Join the reaction diaphragm actuator, during the action of reaction positioning work piece, P2 communicates with Ps, P1 blocking, feedback cam 9 formal dress.
4, multi-functional pneumatic positioner valve according to claim 1 is characterized in that pilot valve components joins piston actuator, and the positive interaction positioning work piece moves its feedback cam 9 formal dress; Join piston actuator, the action of reaction positioning work piece, feedback cam 9 is instead adorned.
5, multi-functional pneumatic positioner valve according to claim 1 is characterized in that feedback element adopts rotary motion valve core 14 coaxial with feedback cam 9, constitutes 0～90 ° of angular stroke control valve.
6, multi-functional pneumatic positioner valve according to claim 1 is characterized in that feeding back cam 9 0～100% input signal valve total travel curved surface A is set; 50～100% input signal valve total travel curved surface B are set; 0～50% input signal valve total travel curved surface C is set.
7, multi-functional pneumatic positioner valve according to claim 1 is characterized in that being provided with the pointer of indicating the valve position size at the axle of feedback cam 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211607 CN88211607U (en) | 1988-04-07 | 1988-04-07 | Multifunctional pneumatic valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211607 CN88211607U (en) | 1988-04-07 | 1988-04-07 | Multifunctional pneumatic valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88211607U true CN88211607U (en) | 1988-12-28 |
Family
ID=4844997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88211607 Withdrawn CN88211607U (en) | 1988-04-07 | 1988-04-07 | Multifunctional pneumatic valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88211607U (en) |
Cited By (10)
| 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 |
| CN103148281A (en) * | 2013-03-20 | 2013-06-12 | 常熟市华夏仪表有限公司 | Stepless electric valve positioner |
| CN103353006A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Compact type electric valve positioner |
| CN103353012A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Cam structure of valve positioner |
| CN103353013A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Pneumatic valve positioner |
| CN103353008A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Locator based on force balance principle |
| CN104455671A (en) * | 2014-11-29 | 2015-03-25 | 重庆市明皓光学仪器有限公司 | Connecting rod and cam type pressure adjusting device |
| CN105697865A (en) * | 2014-11-24 | 2016-06-22 | 天津二十冶建设有限公司 | Rapid on-site adjustment method for angular travel execution mechanism valve |
| CN106641327A (en) * | 2016-10-28 | 2017-05-10 | 哈尔滨理工大学 | Pneumatic valve positioner for pneumatic diaphragm control valve and positioning method |
| CN109458356A (en) * | 2018-11-21 | 2019-03-12 | 中国航发北京航科发动机控制系统科技有限公司 | A kind of regulator for guide vane of compressor pressure ratio control |
-
1988
- 1988-04-07 CN CN 88211607 patent/CN88211607U/en not_active Withdrawn
Cited By (10)
| 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 |
| CN103148281A (en) * | 2013-03-20 | 2013-06-12 | 常熟市华夏仪表有限公司 | Stepless electric valve positioner |
| CN103353006A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Compact type electric valve positioner |
| CN103353012A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Cam structure of valve positioner |
| CN103353013A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Pneumatic valve positioner |
| CN103353008A (en) * | 2013-07-26 | 2013-10-16 | 常熟市华夏仪表有限公司 | Locator based on force balance principle |
| CN105697865A (en) * | 2014-11-24 | 2016-06-22 | 天津二十冶建设有限公司 | Rapid on-site adjustment method for angular travel execution mechanism valve |
| CN104455671A (en) * | 2014-11-29 | 2015-03-25 | 重庆市明皓光学仪器有限公司 | Connecting rod and cam type pressure adjusting device |
| CN106641327A (en) * | 2016-10-28 | 2017-05-10 | 哈尔滨理工大学 | Pneumatic valve positioner for pneumatic diaphragm control valve and positioning method |
| CN109458356A (en) * | 2018-11-21 | 2019-03-12 | 中国航发北京航科发动机控制系统科技有限公司 | A kind of regulator for guide vane of compressor pressure ratio control |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |