CN103727283A - Valve positioning device - Google Patents
Valve positioning device Download PDFInfo
- Publication number
- CN103727283A CN103727283A CN201310653132.XA CN201310653132A CN103727283A CN 103727283 A CN103727283 A CN 103727283A CN 201310653132 A CN201310653132 A CN 201310653132A CN 103727283 A CN103727283 A CN 103727283A
- Authority
- CN
- China
- Prior art keywords
- pneumatic assembly
- valve
- housing
- master control
- valve shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention provides a valve positioning device which comprises a case and a valve shaft rod. The valve shaft rod is arranged in the case in a rotating mode. The lower end portion of the valve shaft rod penetrates through the bottom of the case. The upper end portion of the valve shaft rod is connected with a pneumatic assembly driving the valve shaft rod to rotate, and a stroke detection sensor detecting the rotating angle of the valve shaft rod. The case is provided with an air pressure input port and an air pressure output port. A main control panel, an electrical converter and a pressure sensor are arranged in the case. The main control panel is provided with a main control circuit. A stainless steel layer wraps the case, and therefore the surface hardness of the intelligent valve positioning device is improved, the protection function is achieved, electromagnetic interference on internal components from the environment can be reduced, and the valve positioning device has high quick response capacity and control precision.
Description
Technical field
The present invention relates to a kind of valve positioner.
Background technique
Valve positioner is the main accessories of modulating valve, common and pneumatic control valve supports the use, it accepts the output signal of regulator, then with its output signal, removes to control pneumatic control valve, after modulating valve action, the displacement of valve rod feeds back to valve positioner by mechanical device again, valve position situation is passed to Upper system by electrical signal, yet generally its housing of valve positioner of use is made by moulding aluminium material conventionally, and its hardness is poor, and antijamming capability is poor, cause control accuracy inadequate.
Summary of the invention
The object of the invention is to overcome the defect existing in prior art, a kind of valve positioner is provided, improve working life and control accuracy.
For achieving the above object, technological scheme of the present invention has been to provide a kind of valve positioner, comprise housing, rotation is arranged at the valve shaft lever in described housing, the bottom of described housing is run through in the underpart of described valve shaft lever, the upper end portion of described valve shaft lever is connected with and drives the Pneumatic assembly of its rotation and the stroke detection sensor that detects its rotation angle, on described housing, offer respectively air pressure inlet opening and air pressure delivery outlet, in described housing, be provided with master control borad, electropneumatic transducer and pressure transducer, described master control borad is provided with governor circuit, described electropneumatic transducer connects described air pressure inlet opening, described Pneumatic assembly connects described air pressure delivery outlet, described pressure transducer is connected with described Pneumatic assembly and described master control borad respectively, described electropneumatic transducer is connected with described master control borad and described Pneumatic assembly respectively, described stroke detection sensor is connected with described master control borad, described housing is wrapped with stainless steel lining.
As preferably, between described housing and described Pneumatic assembly, be provided with fixing device.
As preferably, the connecting sheet that described fixing device comprises the fixed base that is arranged on described housing, is fixedly connected with described Pneumatic assembly, on described fixed base, offer draw-in groove, on described connecting sheet, be provided with the projection that matches with described draw-in groove.
As preferably, between described housing and described Pneumatic assembly, be provided with O-ring seals.
As preferably, described seal ring is polyurethane cushion rubber.
As preferably, described Pneumatic assembly comprises Pneumatic piston final controlling element.
As preferably, described master control borad is connected with the external cabling box that is positioned at described outside.
Advantage of the present invention and beneficial effect are: improved the surface hardness of intelligent valve positioner of the present invention, played a protective role, can reduce the electromagnetic interference of environment to internal component, had higher capability of fast response and control accuracy simultaneously.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Wherein: 1, valve shaft lever; 2, housing; 3, air pressure inlet opening; 4, air pressure delivery outlet; 5, stroke detection sensor; 6, Pneumatic assembly; 7, master control borad; 8, pressure transducer; 9, electropneumatic transducer; 10, external cabling box.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples are only for technological scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of valve positioner, comprise housing 2, rotation is arranged at the valve shaft lever 1 in described housing 2, the bottom of described housing 2 is run through in the underpart of described valve shaft lever 1, the upper end portion of described valve shaft lever 1 is connected with and drives the Pneumatic assembly 6 of its rotation and the stroke detection sensor 5 that detects its rotation angle, on described housing 2, offer respectively air pressure inlet opening 3 and air pressure delivery outlet 4, in described housing 2, be provided with master control borad 7, electropneumatic transducer 9 and pressure transducer 8, described master control borad 7 is provided with governor circuit, described electropneumatic transducer 9 connects described air pressure inlet opening 3, described Pneumatic assembly 6 connects described air pressure delivery outlet 4, described pressure transducer 8 is connected with described Pneumatic assembly 6 and described master control borad 7 respectively, described electropneumatic transducer 9 is connected with described master control borad 7 and described Pneumatic assembly 6 respectively, described stroke detection sensor 5 is connected with described master control borad 7, described housing 2 is wrapped with stainless steel lining, described master control borad 7 is connected with the external cabling box 10 that is positioned at described housing 2 outsides, described Pneumatic assembly 6 comprises Pneumatic piston final controlling element.
Without diagram, between described housing 2 and described Pneumatic assembly 6, be provided with fixing device, the connecting sheet that described fixing device comprises the fixed base that is arranged on described housing 2, is fixedly connected with described Pneumatic assembly 6, on described fixed base, offer draw-in groove, on described connecting sheet, be provided with the projection that matches with described draw-in groove.
Without diagram, between described housing 2 and described Pneumatic assembly 6, be provided with O-ring seals, described seal ring is polyurethane cushion rubber.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a valve positioner, comprise housing, rotation is arranged at the valve shaft lever in described housing, the bottom of described housing is run through in the underpart of described valve shaft lever, the upper end portion of described valve shaft lever is connected with and drives the Pneumatic assembly of its rotation and the stroke detection sensor that detects its rotation angle, on described housing, offer respectively air pressure inlet opening and air pressure delivery outlet, in described housing, be provided with master control borad, electropneumatic transducer and pressure transducer, described master control borad is provided with governor circuit, described electropneumatic transducer connects described air pressure inlet opening, described Pneumatic assembly connects described air pressure delivery outlet, described pressure transducer is connected with described Pneumatic assembly and described master control borad respectively, described electropneumatic transducer is connected with described master control borad and described Pneumatic assembly respectively, described stroke detection sensor is connected with described master control borad, it is characterized in that: described housing is wrapped with stainless steel lining.
2. valve positioner as claimed in claim 1, is characterized in that: between described housing and described Pneumatic assembly, be provided with fixing device.
3. valve positioner as claimed in claim 2, it is characterized in that: the connecting sheet that described fixing device comprises the fixed base that is arranged on described housing, is fixedly connected with described Pneumatic assembly, on described fixed base, offer draw-in groove, on described connecting sheet, be provided with the projection that matches with described draw-in groove.
4. valve positioner as claimed in claim 3, is characterized in that: between described housing and described Pneumatic assembly, be provided with O-ring seals.
5. valve positioner as claimed in claim 4, is characterized in that: described seal ring is polyurethane cushion rubber.
6. valve positioner as claimed in claim 5, is characterized in that: described Pneumatic assembly comprises Pneumatic piston final controlling element.
7. valve positioner as claimed in claim 6, is characterized in that: described master control borad is connected with the external cabling box that is positioned at described outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653132.XA CN103727283A (en) | 2013-12-05 | 2013-12-05 | Valve positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653132.XA CN103727283A (en) | 2013-12-05 | 2013-12-05 | Valve positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727283A true CN103727283A (en) | 2014-04-16 |
Family
ID=50451498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310653132.XA Pending CN103727283A (en) | 2013-12-05 | 2013-12-05 | Valve positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103727283A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757331A (en) * | 2016-04-08 | 2016-07-13 | 安庆市星博特电子科技有限公司 | Operating valve control module for fiber bundle filter |
| CN106531271A (en) * | 2016-12-16 | 2017-03-22 | 中广核工程有限公司 | Nuclear power plant valve positioning system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5931180A (en) * | 1997-12-08 | 1999-08-03 | Yamatake Corporation | Electropneumatic positioner |
| CN201155608Y (en) * | 2008-01-31 | 2008-11-26 | 浙江大学 | Positioner for digital electrical valve |
| CN101846212A (en) * | 2010-05-28 | 2010-09-29 | 航天科工哈尔滨风华有限公司电站设备分公司 | Intelligent valve positioner |
| CN202629254U (en) * | 2012-06-05 | 2012-12-26 | 武殿芳 | Intelligent electric valve locating device |
| CN103335156A (en) * | 2013-06-13 | 2013-10-02 | 常熟市惠尔石化仪表有限公司 | Intelligent electropneumatic valve positioner |
-
2013
- 2013-12-05 CN CN201310653132.XA patent/CN103727283A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5931180A (en) * | 1997-12-08 | 1999-08-03 | Yamatake Corporation | Electropneumatic positioner |
| CN201155608Y (en) * | 2008-01-31 | 2008-11-26 | 浙江大学 | Positioner for digital electrical valve |
| CN101846212A (en) * | 2010-05-28 | 2010-09-29 | 航天科工哈尔滨风华有限公司电站设备分公司 | Intelligent valve positioner |
| CN202629254U (en) * | 2012-06-05 | 2012-12-26 | 武殿芳 | Intelligent electric valve locating device |
| CN103335156A (en) * | 2013-06-13 | 2013-10-02 | 常熟市惠尔石化仪表有限公司 | Intelligent electropneumatic valve positioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757331A (en) * | 2016-04-08 | 2016-07-13 | 安庆市星博特电子科技有限公司 | Operating valve control module for fiber bundle filter |
| CN106531271A (en) * | 2016-12-16 | 2017-03-22 | 中广核工程有限公司 | Nuclear power plant valve positioning system |
| CN106531271B (en) * | 2016-12-16 | 2018-04-27 | 中广核工程有限公司 | Nuclear power plant's valve alignment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |