CN102072358A - Valve position detecting device for high-temperature hydraulic valve - Google Patents
Valve position detecting device for high-temperature hydraulic valve Download PDFInfo
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- CN102072358A CN102072358A CN 201010594300 CN201010594300A CN102072358A CN 102072358 A CN102072358 A CN 102072358A CN 201010594300 CN201010594300 CN 201010594300 CN 201010594300 A CN201010594300 A CN 201010594300A CN 102072358 A CN102072358 A CN 102072358A
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- valve
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- hydraulic valve
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Abstract
A valve position detecting device for a high-temperature hydraulic valve comprises a valve detector, a detection plate matching with the valve detector, a support and a lever; the support is fixed certain distance from the valve; the detection plate is fixedly arranged on the support; the middle part of the lever is hinged with the support; the front end of the lever is provided with a fork-type piece; the fork-type piece is clamped on a valve rod under a cross connection head of the hydraulic valve; a counter weight is arranged at the rear end of the lever; and the valve detector is arranged in the middle of the lever to be over against the detection plate. The valve position detecting device for the high-temperature hydraulic valve makes use of the lever principle, the valve detector is arranged far away from the hydraulic valve to leave the high temperature environment of the hydraulic valve, thereby prolonging service life of the valve detector and ensuring the safe and stable operation of the device.
Description
Technical field
The invention belongs to the on off state detection of Chemical Manufacture, relate to a kind of valve position detection device of hydraulic valve, particularly relate to the valve position detection device that is in hydraulic valve under the condition of high temperature with the hydraulic valve valve position.
Background technique
Hydraulic valve valve position detection device is to detect a kind of self-reacting device whether hydraulic valve is normally opened or closed, simple in structure, being to utilize with the distance of its distance to come conducted signal, for cutting both valve openings of signal, is both valve closings of connection signal when near when far away.
Hydraulic valve valve position detection device has obtained using widely in Chemical Manufacture automation control.In order to guarantee safety, on the important valve of Chemical Manufacture, the valve position detection device must be installed, close fully during with the assurance valve closing and put in place.Because the particularity of Chemical Manufacture, many hydraulic valves all move under high temperature and high pressure environment, and these valve body temperature are up to 200～300 ℃, and the gas of same high temperature is often leaked out at the valve stem seal place.Existing valve position detection device is by the cross connecting head that is directly installed on the hydraulic valve valve rod, be in the hot environment for a long time, service time, length will not burn out, life-span is very short, also cause simultaneously device lead wire insulation layer aging easily, cause the device short circuit, make detection malfunctioning, brought very big hidden danger therefore for the safe operation of producing.
Summary of the invention
It is simple to the purpose of this invention is to provide a kind of installation, safe and reliable to operation, is not subjected to the high temperature hydraulic valve valve position detection device of Effect of Hyperthermic Environment.
High temperature hydraulic valve valve position detection device of the present invention is examined device, is formed with detection board, bearing and the lever of the pairing of valve inspection device by valve, bearing leaves the valve certain distance and fixes, fixedly mount detection board on the bearing, the middle part and the bearing of lever are hinged, the lever front end is provided with forked type spare, and forked type spare is stuck on the valve rod under the hydraulic valve cross connecting head, and lever rear end is installed counterweight, valve inspection device is installed in the middle part of lever, over against detection board.
Wherein, described detection board is iron plate or steel plate.
Close when putting in place when hydraulic valve, the cross connecting head is depressed forked type spare, and lever is horizontal, and valve inspection device detects detection board, and the signal transmission is a valve closing; When hydraulic valve is opened, to carry on the cross connecting head, lever is because of the deadweight perk of its rear end counterweight, and valve inspection device leaves detection board, and the signal transmission is a valve open.
High temperature hydraulic valve valve position detection device of the present invention has utilized lever principle; moved away to place far away with being installed in the other valve inspection device of hydraulic valve cross connecting head originally; become directly to detect and be indirect detection; make valve inspection device leave the hot environment of hydraulic valve; it is implemented effectively protection, played good heat-blocking action, avoided valve inspection device because of directly contact high temperature hydraulic valve stem or flue gas damage; prolong the working life of valve inspection device, guaranteed the safe and stable operation of equipment.
High temperature hydraulic valve valve position detection apparatus structure of the present invention is simple, low cost of manufacture, detection sensitivity height.
Description of drawings
Fig. 1 is the structural representation of embodiment's high temperature hydraulic valve valve position detection device when hydraulic valve is closed.
Fig. 2 is the plan structure schematic representation of Fig. 1 high temperature hydraulic valve valve position detection device.
Fig. 3 is the structural representation of embodiment's high temperature hydraulic valve valve position detection device when hydraulic valve is opened.
Embodiment
The structure of high temperature hydraulic valve valve position detection device as shown in Figure 1 and Figure 2, form by valve inspection device 2, detection board 3, bearing 8 and lever 4, bearing 8 is fixed on the place of leaving the hydraulic valve certain distance on the equipment, the middle part of lever 4 is hinged on the bearing 8 by rotating shaft 9, front end at lever 4 is provided with forked type spare 7, forked type spare 7 can be stuck on the valve rod 6 under the hydraulic valve cross connecting head 5, and the rear end of lever 4 is equipped with a counterweight 1 that is enough to lever is lifted.At the middle part of lever 4 a valve inspection device 2 is installed, detection board 3 is fixedly mounted on the bearing 8, over against valve inspection device 2.
Close when putting in place when hydraulic valve, cross connecting head 5 moves down, and the forked type spare on the lever 47 is depressed, and lever 4 is horizontal, and as Fig. 1, valve inspection device 2 detects detection board 3 near detection board 3, and the signal transmission is a valve closing; When hydraulic valve is opened, 5 liftings of cross connecting head, lever 4 is because of the deadweight perk of its rear end counterweight 1, and as Fig. 3, valve inspection device 2 moves a certain distance thereupon backward, detects less than detection board 3, and the signal transmission is a valve open.
Claims (2)
1. high temperature hydraulic valve valve position detection device, it is characterized in that by valve inspection device (2), detection board (3) with valve inspection device (2) pairing, bearing (8) and lever (4) are formed, bearing (8) leaves the valve certain distance and fixes, on bearing (8), be installed with detection board (3), the middle part of lever (4) and bearing (8) are hinged, the front end of lever (4) is provided with forked type spare (7), forked type spare (7) is stuck on the valve rod (6) under the hydraulic valve cross connecting head (5), counterweight (1) is installed in lever (4) rear end, valve inspection device (2) is installed in the middle part of lever (4), over against detection board (3).
2. high temperature hydraulic valve valve position detection device according to claim 1 is characterized in that described detection board (3) is iron plate or steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594300 CN102072358A (en) | 2010-12-19 | 2010-12-19 | Valve position detecting device for high-temperature hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594300 CN102072358A (en) | 2010-12-19 | 2010-12-19 | Valve position detecting device for high-temperature hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072358A true CN102072358A (en) | 2011-05-25 |
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ID=44031020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010594300 Pending CN102072358A (en) | 2010-12-19 | 2010-12-19 | Valve position detecting device for high-temperature hydraulic valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102072358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235119A (en) * | 2014-09-27 | 2014-12-24 | 安徽金禾实业股份有限公司 | Valve position detection device for gas making coal total hydraulic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738230Y (en) * | 2004-11-03 | 2005-11-02 | 李步民 | Device for detecting valve on-off state |
| US7108010B2 (en) * | 2003-09-26 | 2006-09-19 | Smith & Loveless, Inc. | Check valve position detector |
| CN201486960U (en) * | 2009-07-23 | 2010-05-26 | 朱安民 | Device for detecting valve position of hydraulic valve |
| CN201902676U (en) * | 2010-12-19 | 2011-07-20 | 山西省霍州市化学工业有限责任公司 | Valve position detection device for high-temperature hydraulic valve |
-
2010
- 2010-12-19 CN CN 201010594300 patent/CN102072358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7108010B2 (en) * | 2003-09-26 | 2006-09-19 | Smith & Loveless, Inc. | Check valve position detector |
| CN2738230Y (en) * | 2004-11-03 | 2005-11-02 | 李步民 | Device for detecting valve on-off state |
| CN201486960U (en) * | 2009-07-23 | 2010-05-26 | 朱安民 | Device for detecting valve position of hydraulic valve |
| CN201902676U (en) * | 2010-12-19 | 2011-07-20 | 山西省霍州市化学工业有限责任公司 | Valve position detection device for high-temperature hydraulic valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235119A (en) * | 2014-09-27 | 2014-12-24 | 安徽金禾实业股份有限公司 | Valve position detection device for gas making coal total hydraulic valve |
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Application publication date: 20110525 |