CN104265990A - Position feedback device of shock-resisting automatic valve - Google Patents
Position feedback device of shock-resisting automatic valve Download PDFInfo
- Publication number
- CN104265990A CN104265990A CN201410463948.0A CN201410463948A CN104265990A CN 104265990 A CN104265990 A CN 104265990A CN 201410463948 A CN201410463948 A CN 201410463948A CN 104265990 A CN104265990 A CN 104265990A
- Authority
- CN
- China
- Prior art keywords
- valve
- position feedback
- automatic valve
- feedback device
- valve body
- 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
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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)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Multiple-Way Valves (AREA)
Abstract
Disclosed is a position feedback device of a shock-resisting automatic valve. The position feedback device of the shock-resisting automatic valve is mounted at the top end of a valve body or an operating mechanism and comprises proximity switches, a fixing support and coaxial baffles. The coaxial baffles are welded to the portion of the valve core shaft of the automatic valve or the shaft of the operating mechanism, which extends out of the valve core and accordingly can rotate along with a valve core; the fixing support is welded on one side of the valve body; the two proximity switches are mounted on the fixing support in parallel and accordingly can be on the same plane with the coaxial baffles. Due to the fact that the feedback switches are in a non-contact state, the position feedback device of the shock-resisting automatic valve solves the problem of malfunction due to shock; according to the different requirements of a control system, the witches can be provided with appropriate voltage levels in appropriate wiring manners, so that the reliability of the system can be greatly enhanced.
Description
Technical field
The present invention relates to a kind of against shock automatic valve position feedback device.
Background technique
Automatic valve is widely used in the industrial production, electric valve and hydraulic valve bear the important function such as driving medium conveying, cooling water supply in large scale system, therefore automatic valve standard-sized sheet and closed positions signal belong to signal of interest in controlling unit, and the correctness of its feedback signal directly affects the correct running of whole system Automated condtrol flow process.In conventional art, for automatic butterfly valve: Spool rotating axle attended operation mechanism central shaft (electronic or hydraulic transmission), two cams are set with in operating device central axis, two cams are arranged up and down, be mutually 90 degree with valve shaft is concentric, valve body is when closed positions, and cam chimb tangent line place arranges contact-type sensitive switch up and down, by Spool rotating cam sensitive switch, launching position feedback signal.Conventional art major defect is that cam and sensitive switch need close contact just can send stabilization signal, but in the environment that vibrations are larger, there will be cam and closely cannot compress sensitive switch, even make switching damage because shaking excessive mutual extruding, cause signal cannot deliver to control system or the appearance of unstable situation, cause automatic control flow chart to exit because condition does not meet, greatly have impact on the reliability of system.
Summary of the invention
The object of the present invention is to provide a kind of against shock automatic valve position feedback device, the feedback switch of this device adopts contactless, solves the device caused because of vibration problems malfunctioning.
In order to realize object of the present invention, the technical solution used in the present invention is:
A kind of against shock automatic valve position feedback device, be arranged on valve body or operating device top, include: proximity switch, fixed support and coaxial catch, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body welds together, and makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.
Described proximity switch is 24V direct current supply, and switch diameter is outside screw type diameter M10-M18.
Described coaxial catch has a bottom surface and two facades, and three faces are vertical, bottom surface perforate, with stay bolt through bottom surface, and both sides bolton; Stay bolt extends valve body part with poppet shaft or operating device axle and welds, and makes it can with valve core rotation; Two facades are corresponding respectively with two proximity switches.
The advantage that the present invention has and effect are:
The present invention utilizes poppet shaft or operating device axle to extend valve body part, coaxial washer is arranged on existing rotational structure, make it can with Spool rotating, fixed support is welded on valve body side, two approach switchs are installed in parallel on fixed support, make switch with rotate catch be in same plane, catch with Spool rotating to standard-sized sheet or closed positions time, just in time be in the induction region of proximity position switch, thus send signal.Because feedback switch adopts contactless, solve the device caused because of vibration problems malfunctioning, switch according to the different needs of control system, can select electric pressure and the mode of connection of adaptation.Substantially increase the reliability of system.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention;
Fig. 2 is side view of the present invention;
Fig. 3 is plan view of the present invention.
In figure: proximity switch 1, fixed support 2, coaxial catch 3, valve body or operating device top 4, coaxial bolts 5.
Embodiment
As Figure 1-3, a kind of against shock automatic valve of the present invention position feedback device, be arranged on valve body or operating device top 4, include: proximity switch 1, fixed support 2 and coaxial catch 3, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body is welded together by coaxial bolts 5, makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.
Described proximity switch is 24V direct current supply, and switch diameter is outside screw type diameter M10-M18.Can metal object before inductive sensor in 5-8mm, mode that switch wire connection can be selected " two lines, three lines, four lines ".
Fixed support adopts steel plate to process, and be fixed on fixed support with bolt by proximity switch, the distance of two proximity switches is adjustable.Installing spring washer between fixed support and bolt can prevent vibrations from causing bolt looseness.
Coaxial catch adopts steel plate to process, and has a bottom surface and two facades, three vertical arrangements, bottom surface perforate, with stay bolt through bottom surface, and both sides bolton; Stay bolt extends valve body part with poppet shaft or operating device axle and welds, and makes it can with valve core rotation; The position corresponding with proximity switch, two facade positions is corresponding.
Claims (3)
1. an against shock automatic valve position feedback device, be arranged on valve body or operating device top, it is characterized in that including: proximity switch, fixed support and coaxial catch, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body welds together, and makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.
2. a kind of against shock automatic valve position feedback device according to claim 1, is characterized in that described proximity switch is 24V direct current supply, and switch diameter is outside screw type diameter M10-M18.
3. a kind of against shock automatic valve position feedback device according to claim 1, is characterized in that described coaxial catch has a bottom surface and two facades, and three faces are vertical, bottom surface perforate, with stay bolt through bottom surface, and both sides bolton; Stay bolt extends valve body part with poppet shaft or operating device axle and welds, and makes it can with valve core rotation; Two facades are corresponding respectively with two proximity switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463948.0A CN104265990A (en) | 2014-09-13 | 2014-09-13 | Position feedback device of shock-resisting automatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463948.0A CN104265990A (en) | 2014-09-13 | 2014-09-13 | Position feedback device of shock-resisting automatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265990A true CN104265990A (en) | 2015-01-07 |
Family
ID=52157544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410463948.0A Pending CN104265990A (en) | 2014-09-13 | 2014-09-13 | Position feedback device of shock-resisting automatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265990A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762134A (en) * | 2016-12-07 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of air bleed valve is opened and closed instruction device |
| CN106885036A (en) * | 2017-03-27 | 2017-06-23 | 苏州虞创智能仪表科技有限公司 | A kind of safe type intelligent valve positioner for being capable of feedback signal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5573032A (en) * | 1993-08-25 | 1996-11-12 | Rosemount Inc. | Valve positioner with pressure feedback, dynamic correction and diagnostics |
| CN201575173U (en) * | 2009-10-19 | 2010-09-08 | 周明 | Multistage pneumatic sector gate |
| CN204062131U (en) * | 2014-09-13 | 2014-12-31 | 国家电网公司 | A kind of against shock automatic valve position feedback device |
-
2014
- 2014-09-13 CN CN201410463948.0A patent/CN104265990A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5573032A (en) * | 1993-08-25 | 1996-11-12 | Rosemount Inc. | Valve positioner with pressure feedback, dynamic correction and diagnostics |
| CN201575173U (en) * | 2009-10-19 | 2010-09-08 | 周明 | Multistage pneumatic sector gate |
| CN204062131U (en) * | 2014-09-13 | 2014-12-31 | 国家电网公司 | A kind of against shock automatic valve position feedback device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762134A (en) * | 2016-12-07 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of air bleed valve is opened and closed instruction device |
| CN106885036A (en) * | 2017-03-27 | 2017-06-23 | 苏州虞创智能仪表科技有限公司 | A kind of safe type intelligent valve positioner for being capable of feedback signal |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150107 |