CN103353013A - Pneumatic valve positioner - Google Patents
Pneumatic valve positioner Download PDFInfo
- Publication number
- CN103353013A CN103353013A CN2013103178514A CN201310317851A CN103353013A CN 103353013 A CN103353013 A CN 103353013A CN 2013103178514 A CN2013103178514 A CN 2013103178514A CN 201310317851 A CN201310317851 A CN 201310317851A CN 103353013 A CN103353013 A CN 103353013A
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- spring
- main lever
- lever
- valve
- cam mechanism
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Abstract
The invention relates to a pneumatic valve positioner. The pneumatic valve positioner comprises a corrugated pipe, a main lever with one end connected with the corrugated pipe, a first spring, a baffle, a one-way amplifier, a second spring, a third spring, an auxiliary lever, a cam mechanism and a thin film chamber, wherein the first spring and the corrugated pipe are symmetrically arranged about the main lever, the baffle is connected with the other end of the main lever, a nozzle of the one-way amplifier faces right towards the baffle, the second spring and the baffle are symmetrically arranged about the main lever, the third spring is arranged between the first spring and the second spring and one end of the third spring is fixedly connected with the main lever, the auxiliary lever is connected with the other end of the third spring, the cam mechanism is connected with the auxiliary lever, and the thin film chamber is connected between the cam mechanism and the one-way amplifier. The pneumatic positioner valve can effectively improve working performance of an adjusting valve, improve the motion speed of the adjusting valve, and overcomes the defect of unbalanced force of the valve core of the adjusting valve caused by high pressure difference.
Description
Technical field
The present invention relates to the valve positioner field, particularly a kind of pneumatic positioner valve.
Background technique
There are problems in existing pneumatic positioner valve: large such as intrinsic error, it is lower to return the performance index such as dead, dead band, improves not obviously for the movement speed of modulating valve, and modulating valve can cause the regulation valve core unbalanced force because of High Pressure Difference.
Summary of the invention
The object of the invention provides a kind of pneumatic positioner valve that is conducive to improve the modulating valve service behaviour.
In order to achieve the above object, the technical solution adopted in the present invention is: a kind of pneumatic positioner valve, and it comprises bellows, the main lever that one end is connected with described bellows, with first spring of described bellows about the symmetrical setting of main lever, the baffle plate that is connected with the other end of described main lever, nozzle is over against the Unidirectional magnifier of described baffle plate, be in symmetrical locational the second spring with described baffle plate about main lever, be arranged between the first spring and the second spring and the 3rd spring that an end and described main lever are fixedly connected, the auxiliary lever that is connected with the other end of described the 3rd spring, the cam mechanism that is connected with described auxiliary lever, be connected in the film chamber between described cam mechanism and the Unidirectional magnifier.
Optimize, described cam mechanism comprises the roller that is connected with described auxiliary lever, the feedback rod that is connected with described roller, the cam that is connected with described feedback rod same axis.
Because adopt technique scheme, the present invention has the following advantages: the present invention can effectively improve the service behaviour of modulating valve, heightens the movement speed of modulating valve, overcome the impact of the regulation valve core unbalanced force that modulating valve causes because of High Pressure Difference.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention;
Wherein: 1, bellows; 2, main lever; 3, the first spring; 5, cam; 6, auxiliary lever; 8, film chamber; 9, feedback rod; 10, roller; 11, the 3rd spring; 12, the second spring; 13, baffle plate; 14, nozzle; 16, Unidirectional magnifier.
Embodiment
Below in conjunction with accompanying drawing, the preferred specific embodiment of the present invention is described.
As shown in Figure 1, this pneumatic positioner valve, it comprises bellows 1, the main lever 2 that one end is connected with described bellows 1, with first spring of described bellows 1 about main lever 2 symmetrical settings, the baffle plate 13 that is connected with the other end of described main lever 2, nozzle 14 is over against the Unidirectional magnifier 16 of described baffle plate 13, be in symmetrical locational the second spring 12 with described baffle plate 13 about main lever 2, be arranged between the first spring 3 and the second spring 12 and the 3rd spring 11 that an end and described main lever 2 are fixedly connected, the auxiliary lever 6 that is connected with the other end of described the 3rd spring 11, the cam mechanism that is connected with described auxiliary lever 6, be connected in the film chamber 8 between described cam mechanism and the Unidirectional magnifier 16, described cam mechanism comprises the roller 10 that is connected with described auxiliary lever 6, the feedback rod 9 that is connected with described roller 10, the cam 5 that is connected with described feedback rod 9 same axis.
The present invention has been compared with the prior art following advantage:
1, the present invention can effectively improve the service behaviour of modulating valve;
2, heighten the movement speed of modulating valve;
3, overcome the impact of the regulation valve core unbalanced force that modulating valve causes because of High Pressure Difference;
The modulating valve of 4, joining different range of springs need only change bleed pressure;
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All the equivalence of doing according to Spirit Essence of the present invention changes or modification, all should be encompassed within protection scope of the present invention.
Claims (2)
1. pneumatic positioner valve, it is characterized in that: it comprises bellows (1), the main lever (2) that one end is connected with described bellows (1), with first spring of described bellows (1) about the symmetrical setting of main lever (2), the baffle plate (13) that is connected with the other end of described main lever (2), nozzle (14) is over against the Unidirectional magnifier (16) of described baffle plate (13), be in symmetrical locational the second spring (12) with described baffle plate (13) about main lever (2), be arranged between the first spring (3) and the second spring (12) and the 3rd spring (11) that an end and described main lever (2) are fixedly connected, the auxiliary lever (6) that is connected with the other end of described the 3rd spring (11), the cam mechanism that is connected with described auxiliary lever (6), be connected in the film chamber (8) between described cam mechanism and the Unidirectional magnifier (16).
2. pneumatic positioner valve according to claim 1 is characterized in that: described cam mechanism comprises the roller (10) that is connected with described auxiliary lever (6), the feedback rod (9) that is connected with described roller (10), the cam (5) that is connected with described feedback rod (9) same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103178514A CN103353013A (en) | 2013-07-26 | 2013-07-26 | Pneumatic valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103178514A CN103353013A (en) | 2013-07-26 | 2013-07-26 | Pneumatic valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103353013A true CN103353013A (en) | 2013-10-16 |
Family
ID=49309410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103178514A Pending CN103353013A (en) | 2013-07-26 | 2013-07-26 | Pneumatic valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103353013A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110285254A (en) * | 2019-07-04 | 2019-09-27 | 武汉羽芒智能科技有限公司 | A kind of pneumatic positioner valve and its control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201536U (en) * | 1986-04-09 | 1987-04-15 | 机械部上海工业自动化仪表研究所 | Valve locator with unlinear feedback |
| CN88211607U (en) * | 1988-04-07 | 1988-12-28 | 广东中山调节阀厂 | Multifunctional pneumatic valve positioner |
| CN2121592U (en) * | 1992-01-09 | 1992-11-11 | 宗良 | Cylinder valve open/close device |
| CN2196220Y (en) * | 1994-08-29 | 1995-05-03 | 温州市东瓯自动化仪表厂 | Pneumatic manual gate valve |
| CN2532337Y (en) * | 2002-02-05 | 2003-01-22 | 上海光辉仪器仪表公司 | Electric valve positioner |
-
2013
- 2013-07-26 CN CN2013103178514A patent/CN103353013A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201536U (en) * | 1986-04-09 | 1987-04-15 | 机械部上海工业自动化仪表研究所 | Valve locator with unlinear feedback |
| CN88211607U (en) * | 1988-04-07 | 1988-12-28 | 广东中山调节阀厂 | Multifunctional pneumatic valve positioner |
| CN2121592U (en) * | 1992-01-09 | 1992-11-11 | 宗良 | Cylinder valve open/close device |
| CN2196220Y (en) * | 1994-08-29 | 1995-05-03 | 温州市东瓯自动化仪表厂 | Pneumatic manual gate valve |
| CN2532337Y (en) * | 2002-02-05 | 2003-01-22 | 上海光辉仪器仪表公司 | Electric valve positioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110285254A (en) * | 2019-07-04 | 2019-09-27 | 武汉羽芒智能科技有限公司 | A kind of pneumatic positioner valve and its control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131016 |