CN102155573A - Control device capable of ensuring safe operation of pneumatic valve - Google Patents
Control device capable of ensuring safe operation of pneumatic valve Download PDFInfo
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- CN102155573A CN102155573A CN 201110096139 CN201110096139A CN102155573A CN 102155573 A CN102155573 A CN 102155573A CN 201110096139 CN201110096139 CN 201110096139 CN 201110096139 A CN201110096139 A CN 201110096139A CN 102155573 A CN102155573 A CN 102155573A
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- pneumatic valve
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Abstract
The invention discloses a control device capable of ensuring the safe operation of a pneumatic valve; the control device comprises a pneumatic device, a pneumatic control valve, an electromagnetic valve and an air source, wherein the pneumatic device is linked with a pneumatic valve; the pneumatic device comprises a piston, a piston rod and a piston cylinder; the piston rod is linked with a valve rod of the pneumatic valve; the pneumatic control valve is respectively communicated with the pneumatic device, the electromagnetic valve and the air source; the electromagnetic valve is communicated with the air source; a control valve is arranged between the pneumatic control valve and the electromagnetic valve; the control valve is communicated with an inlet end of the pneumatic valve; and the control valve controls the opening and closing through the pressure of the inlet end of the pneumatic valve. By adopting the structure, when the pressure of the inlet end of the pneumatic valve is higher and the pneumatic valve is not allowed to be opened according to working condition requirements, the control device ensures the pneumatic device not to incorrectly operate; when the pressure of the inlet end of the pneumatic valve is lower than a set pressure, the control device ensures the pneumatic valve to be capable of operating reliably when operation is needed.
Description
Technical field
The present invention relates to a kind of control gear of controlling the pneumatic valve motion, be specifically related to a kind of control gear that guarantees the pneumatic valve safety operation.
Background technique
Along with modern industry for improving constantly that automation requires, valve is increasing to adopt control automatically.Pneumatic valve be adopt Pneumatic actuator come control valve unlatching, close aperture that also can control valve.The design of pneumatic valve need be disposed suitable Pneumatic actuator according to the open and close torque of valve.If the driving torque of Pneumatic actuator is too little, then can't drive valve, if the driving moment of Pneumatic actuator is excessive, not only can raise the cost, and excessive driving torque may cause the damage of valve part.Usually dispose suitable Pneumatic actuator according to the combination of theoretical calculation, test and experience.
Chang Gui pneumatic valve mainly comprises Pneumatic actuator, Pneumatic valve, solenoid valve, the source of the gas that links with pneumatic valve as shown in Figure 1, wherein said Pneumatic actuator comprises piston, piston rod and piston cylinder, the valve rod interlock of piston rod and pneumatic valve, Pneumatic valve is communicated with Pneumatic actuator, solenoid valve and source of the gas respectively, and solenoid valve is connected with source of the gas.Solenoid valve can remote control operation or execute-in-place, solenoid valve is communicated with Pneumatic valve or communicates with source of the gas by operation, thereby control the unlatching of pneumatic valve or close by Pneumatic valve; Also can directly adopt solenoid valve to control the action of Pneumatic actuator.But under some specific working condition; adopt existing technology to be difficult to the suitable pneumatic valve control gear of configuration; pneumatic valve in actual use because contain in the variation of the variation of medium temperature, pressure, medium a large amount of solid grits or valve sealing face bonding solid dielectric, thereby cause the driving torque of valve to increase greatly.For such situation, common solution is to select bigger valve actuator for use, strengthens the intensity of valve part simultaneously when design, thereby guarantees that valve all can action message under various working conditions.But, this valve does not allow to open under the situation of total head difference, if unexpected unlatching of valve this moment can all be discharged into the atmosphere the medium in the system, thereby be caused great disaster accident, for this reason, consider from this factor, normally select the valve actuator of less moment of torsion for use, guarantee that valve can not be unlocked under the total head difference, even misoperation can Open valve yet, have only when the pressure reduction of valve hour can Open valve.In sum, at this specific working condition, be difficult to configuration suitable valve drive unit, the moment of torsion of drive unit is too little, possibly can't guarantee Open valve when valve need be opened, can cause the accident of system; And the moment of torsion of drive unit is excessive, is in system under the operating mode of total head difference, may be because of misoperation Open valve, thereby cause great disaster accident.
Summary of the invention
At the deficiencies in the prior art, the object of the present invention is to provide a kind of control gear that guarantees the pneumatic valve safety operation, this control gear guarantees that pneumatic valve can action message in needs actions, and in the time of the pneumatic valve akinesia, can not cause the pneumatic valve action because of misoperation.
For achieving the above object, the invention provides a kind of control gear that guarantees the pneumatic valve safety operation, comprise Pneumatic actuator with the pneumatic valve interlock, Pneumatic valve, solenoid valve, source of the gas, wherein said Pneumatic actuator comprises piston, piston rod and piston cylinder, the valve rod interlock of piston rod and pneumatic valve, Pneumatic valve respectively with Pneumatic actuator, solenoid valve and source of the gas are communicated with, solenoid valve is connected with source of the gas, be provided with control valve between described Pneumatic valve and the solenoid valve, described control valve is communicated with the entrance point of pneumatic valve, and described control valve is controlled opening and closing by the pressure of pneumatic valve entrance point.
The invention has the beneficial effects as follows: owing between described Pneumatic valve and solenoid valve, be provided with control valve, described control valve is communicated with the entrance point of pneumatic valve, and described control valve is controlled opening and closing by the pressure of pneumatic valve entrance point, and the cracking pressure of control valve can be adjusted and set according to usage requirement.When the pressure of pneumatic valve entrance point is higher, according to working condition requirement, do not allow pneumatic valve to open, set control valve and close this moment, even solenoid valve misoperation, because the controlled valve of signal of solenoid valve cuts off, so can not cause the action of Pneumatic valve, just can guarantee that also Pneumatic actuator can misoperation; In addition in order to ensure the action message of Pneumatic actuator, can select bigger Pneumatic actuator moment of torsion, like this when the pressure of pneumatic valve entrance point is lower than the pressure of setting, control valve can be opened automatically, operate solenoid valve again, make solenoid valve drive the Pneumatic valve action, thereby drive the pneumatic valve action, owing to selected Pneumatic actuator, can guarantee that therefore pneumatic valve can move reliably in the needs action than high pulling torque.In sum, solved effectively that the Pneumatic actuator moment of torsion is excessive may to cause the pneumatic valve misoperation, and the too small contradictory problems that may cause pneumatic valve to move of Pneumatic actuator moment of torsion.
Description of drawings
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is a structural representation of the present invention.
Embodiment
Provided a kind of control gear that guarantees the pneumatic valve safety operation as shown in Figure 2, comprise Pneumatic actuator 2 with pneumatic valve 1 interlock, Pneumatic valve 3, solenoid valve 4, source of the gas 5, wherein said Pneumatic actuator 2 comprises piston 21, piston rod 22 and piston cylinder 23, piston rod 22 links with the valve rod 11 of pneumatic valve 1, Pneumatic valve 3 respectively with Pneumatic actuator 2, solenoid valve 4 and source of the gas 5 are communicated with, solenoid valve 4 is connected with source of the gas 5, be provided with control valve 6 between described Pneumatic valve 3 and the solenoid valve 4, described control valve 6 is communicated with the entrance point 12 of pneumatic valve 1, and described control valve 6 is controlled opening and closing by the pressure of pneumatic valve 1 entrance point 12.Described Pneumatic valve 3, solenoid valve 4, control valve 6 are all conventional equipment.
Adopt said structure, owing between described Pneumatic valve 3 and solenoid valve 4, be provided with control valve 6, described control valve 6 is communicated with the entrance point 12 of pneumatic valve 1, and described control valve 6 is controlled opening and closing by the pressure of pneumatic valve 1 entrance point 12, and the cracking pressure of control valve 6 can be adjusted and set according to usage requirement.When the pressure of pneumatic valve 1 entrance point 12 is higher, according to working condition requirement, do not allow pneumatic valve 1 to open, set control valve 6 and close this moment, even solenoid valve 4 misoperations, because the controlled valve 6 of signal of solenoid valve 4 cuts off, so can not cause the action of Pneumatic valve 3, just can guarantee that also Pneumatic actuator 2 can misoperation; In addition in order to ensure the action message of Pneumatic actuator 2, can select bigger Pneumatic actuator moment of torsion, like this when the pressure of pneumatic valve 1 entrance point 12 is lower than the pressure of setting, control valve 6 can be opened automatically, operate solenoid valve 4 again, make solenoid valve 4 drive Pneumatic valve 3 actions, thereby drive pneumatic valve 1 action, owing to selected Pneumatic actuator, can guarantee that therefore pneumatic valve 1 can move reliably in the needs action than high pulling torque.In sum, solved effectively that the Pneumatic actuator moment of torsion is excessive may to cause pneumatic valve 1 misoperation, and the too small contradictory problems that may cause pneumatic valve 1 to move of Pneumatic actuator moment of torsion.
Claims (1)
1. control gear that guarantees the pneumatic valve safety operation, comprise Pneumatic actuator with the pneumatic valve interlock, Pneumatic valve, solenoid valve, source of the gas, wherein said Pneumatic actuator comprises piston, piston rod and piston cylinder, the valve rod interlock of piston rod and pneumatic valve, Pneumatic valve respectively with Pneumatic actuator, solenoid valve and source of the gas are communicated with, solenoid valve is connected with source of the gas, it is characterized in that: be provided with control valve between described Pneumatic valve and the solenoid valve, described control valve is communicated with the entrance point of pneumatic valve, and described control valve is controlled opening and closing by the pressure of pneumatic valve entrance point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100961397A CN102155573B (en) | 2011-04-18 | 2011-04-18 | Control device capable of ensuring safe operation of pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100961397A CN102155573B (en) | 2011-04-18 | 2011-04-18 | Control device capable of ensuring safe operation of pneumatic valve |
Publications (2)
| Publication Number | Publication Date |
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| CN102155573A true CN102155573A (en) | 2011-08-17 |
| CN102155573B CN102155573B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100961397A Active CN102155573B (en) | 2011-04-18 | 2011-04-18 | Control device capable of ensuring safe operation of pneumatic valve |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588662A (en) * | 2012-03-14 | 2012-07-18 | 伯特利阀门集团有限公司 | Pneumatic actuator of valve |
| CN102679023A (en) * | 2012-04-26 | 2012-09-19 | 成都思驰科技有限公司 | Fluid self-assisted valve controller and control method thereof |
| CN102878315A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Ball valve with zero friction between valve seat and ball |
| CN102878316A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Ball valve reliable in sealing and low in opening-closing torque |
| CN102878317A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Pneumatic ball valve reliable in sealing and low in opening-closing torque |
| CN102976105A (en) * | 2012-11-06 | 2013-03-20 | 镇江市电站辅机厂有限公司 | Pneumatic control system of spherical air lock valve |
| CN103727285A (en) * | 2013-12-31 | 2014-04-16 | 超达阀门集团股份有限公司 | Valve for controlling driving device with servo valve |
| CN103742678A (en) * | 2014-01-10 | 2014-04-23 | 超达阀门集团股份有限公司 | Y-shaped three-way ball valve capable of automatically controlling driving device |
| CN104235477A (en) * | 2014-09-04 | 2014-12-24 | 天津百利展发集团有限公司 | Intelligent under-pressure line change valve |
| CN105334039A (en) * | 2015-11-27 | 2016-02-17 | 江南工业集团有限公司 | Intelligent integrated testing device and method of low-temperature insulated gas cylinder valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615449Y (en) * | 2003-05-06 | 2004-05-12 | 上海远东制药机械总厂 | Improved pneumatic high vacuum butterfly valve |
| US6789566B1 (en) * | 1999-03-09 | 2004-09-14 | Friedrich Welcker | Safety contrivance for gas-using device |
| US20050247351A1 (en) * | 2004-05-06 | 2005-11-10 | Motohiro Kubota | Emergency isolation valve apparatus |
| CN1769752A (en) * | 2004-11-07 | 2006-05-10 | 江苏神通阀门有限公司 | Automatically controlled air sealing butterfly valve |
| CN201954079U (en) * | 2011-04-18 | 2011-08-31 | 浙江超达阀门股份有限公司 | Control device for guaranteeing operation safety of pneumatic valve |
-
2011
- 2011-04-18 CN CN2011100961397A patent/CN102155573B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789566B1 (en) * | 1999-03-09 | 2004-09-14 | Friedrich Welcker | Safety contrivance for gas-using device |
| CN2615449Y (en) * | 2003-05-06 | 2004-05-12 | 上海远东制药机械总厂 | Improved pneumatic high vacuum butterfly valve |
| US20050247351A1 (en) * | 2004-05-06 | 2005-11-10 | Motohiro Kubota | Emergency isolation valve apparatus |
| CN1769752A (en) * | 2004-11-07 | 2006-05-10 | 江苏神通阀门有限公司 | Automatically controlled air sealing butterfly valve |
| CN201954079U (en) * | 2011-04-18 | 2011-08-31 | 浙江超达阀门股份有限公司 | Control device for guaranteeing operation safety of pneumatic valve |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588662B (en) * | 2012-03-14 | 2013-06-19 | 伯特利阀门集团有限公司 | Pneumatic actuator of valve |
| CN102588662A (en) * | 2012-03-14 | 2012-07-18 | 伯特利阀门集团有限公司 | Pneumatic actuator of valve |
| CN102679023A (en) * | 2012-04-26 | 2012-09-19 | 成都思驰科技有限公司 | Fluid self-assisted valve controller and control method thereof |
| CN102679023B (en) * | 2012-04-26 | 2013-09-18 | 成都思驰科技有限公司 | Fluid self-assisted valve controller and control method thereof |
| CN102878316B (en) * | 2012-10-23 | 2014-03-12 | 浙江超达阀门股份有限公司 | Ball valve reliable in sealing and low in opening-closing torque |
| CN102878317A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Pneumatic ball valve reliable in sealing and low in opening-closing torque |
| CN102878316A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Ball valve reliable in sealing and low in opening-closing torque |
| CN102878315A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Ball valve with zero friction between valve seat and ball |
| CN102976105A (en) * | 2012-11-06 | 2013-03-20 | 镇江市电站辅机厂有限公司 | Pneumatic control system of spherical air lock valve |
| CN102976105B (en) * | 2012-11-06 | 2015-11-18 | 镇江市电站辅机厂有限公司 | A kind of air-path control system of ball gas-lock valve |
| CN103727285A (en) * | 2013-12-31 | 2014-04-16 | 超达阀门集团股份有限公司 | Valve for controlling driving device with servo valve |
| CN103742678A (en) * | 2014-01-10 | 2014-04-23 | 超达阀门集团股份有限公司 | Y-shaped three-way ball valve capable of automatically controlling driving device |
| CN103742678B (en) * | 2014-01-10 | 2016-03-30 | 超达阀门集团股份有限公司 | A kind of Y-type three way type ball valve of automatically controlled actuating device |
| CN104235477A (en) * | 2014-09-04 | 2014-12-24 | 天津百利展发集团有限公司 | Intelligent under-pressure line change valve |
| CN104235477B (en) * | 2014-09-04 | 2016-05-25 | 天津百利展发集团有限公司 | The valve of intelligence thread-changing with pressure |
| CN105334039A (en) * | 2015-11-27 | 2016-02-17 | 江南工业集团有限公司 | Intelligent integrated testing device and method of low-temperature insulated gas cylinder valve |
| CN105334039B (en) * | 2015-11-27 | 2018-05-25 | 江南工业集团有限公司 | A kind of cryogenic insulated cylinder valve intelligent integrated test device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102155573B (en) | 2012-07-25 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Owner name: CHAODA VALVE GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG CHAODA VALVE CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325102 Patentee after: Chaoda Valve Group Co., Ltd. Address before: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325102 Patentee before: Zhejiang Chaoda Valve Co., Ltd. |