CN105318057A - Novel membrane-assisting type compression bar instability trigger type valve assembly - Google Patents
Novel membrane-assisting type compression bar instability trigger type valve assembly Download PDFInfo
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- CN105318057A CN105318057A CN201510125408.6A CN201510125408A CN105318057A CN 105318057 A CN105318057 A CN 105318057A CN 201510125408 A CN201510125408 A CN 201510125408A CN 105318057 A CN105318057 A CN 105318057A
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- valve
- hydraulic oil
- elongate rod
- switch valve
- diaphragm
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- 230000006835 compression Effects 0.000 title 1
- 238000007906 compression Methods 0.000 title 1
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 56
- 230000008093 supporting effect Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a valve assembly. The valve assembly mainly comprises a spring actuator, hydraulic oil, a switching valve, a reversing valve, a hydraulic oil communicating pipe and a hydraulic oil storage tank. Medium pressure acts on a membrane of the reversing valve and is transferred to a slender rod for triggering the reversing valve through a valve element assembly, fixedly connected with the membrane, of the reversing valve. The reversing valve controls a drainage channel of the hydraulic oil. The Eula law of the slender rod instability is applied to triggering of the reversing valve. When the medium pressure reaches the triggering pressure of the reversing valve, the drainage channel of the hydraulic oil is opened through the reversing valve, so that the spring actuator loses the supporting function of the hydraulic oil and acts, and the switching valve in the closed state is opened, or a main valve in the open state is driven to be closed. The action of the valve assembly is free of driving of any power, sensors or instrument air, and the valve assembly can be used as an emergency drainage device or an emergency closing device.
Description
Technical field
The present invention relates to a kind of valve member, relate to a kind of valve member can automatically can opened or close when pressure exceedes setting value more specifically.
Background technique
In order to protect device and the equipment of pressure piping, pressurized container and their upstream and downstream, the valve can automatically opened or close under often needing to be arranged on superpressure operating mode.In practice in the past, pressure in usual use pressure transmitter detected pressures pipeline or pressurized container, pressure transmitter outputs signal to control system, when pressure exceedes setting value, control system can send instruction and change the power supply state being installed on the solenoid valve of pneumatic actuator supply air line, and then change the state of solenoid valve air-flow path, thus instrument wind makes pneumatic actuator action, reaches the object of unlatching or throttle down.
Use pressure transmitter, solenoid valve, pneumatic actuator, main valve and control system jointly to realize the main potential risk of automatic on-off valve under superpressure operating mode to be, if pressure transmitter lost efficacy, or the Signal transmissions between pressure transmitter and control system, or the power supply of solenoid valve goes wrong, or the instrument wind in place goes wrong, just may occur that pressure exceedes setting pressure, pneumatic actuator does not but make the situation of main valve action as scheduled, brings threat to the device of pressure piping, pressurized container and their upstream and downstream and equipment.
The present invention is primarily of spring final controlling element, hydraulic oil, switch valve, selector valve, oil hydraulic pump, hydraulic oil connecting tube and hydraulic oil storage tank composition.Wherein the design of selector valve is based on the principle of pressure bar stabilization and strut buckling, its mangetic core assembly be connected with diaphragm bears from the pressure loading in pipeline, this load will be carried in elongate rod, when the ultimate load of active force lower than elongate rod that the pressure medium in pipeline produces, elongate rod is stablized, the end thrust of elongate rod makes mangetic core assembly be in working position one, and now spring final controlling element can make switch valve be in normal valve position; When the active force that pressure medium produces exceedes the ultimate load of elongate rod, elongate rod unstability, selector valve makes the conducting of hydraulic oil connecting tube, and hydraulic oil flows to downstream hydraulic oil reservoir tank.The piston of spring final controlling element loses the supporting effect of hydraulic oil, under the promotion of spring by switch valve action to working position two.Valve will change into improper valve position by normal valve position, thus achieve automatic unlatching or the closedown of superpressure operating mode lower valve.
In this application, the function of pressure transmitter, solenoid valve and control system three is achieved based on pressure bar stabilization and strut buckling principle design selector valve; And spring final controlling element achieves the function of pneumatic actuator.So this application is without the need to any electric power, the driving of sensor or instrument wind, safe and reliable.
Through looking into, do not design based on pressure bar stabilization and strut buckling principle at present, and using diaphragm as the valve member of auto-action under the superpressure operating mode of auxiliary forced element.
Summary of the invention
The novel diaphragm auxiliary type strut buckling flip-over type valve member that the present invention relates to.Form primarily of spring final controlling element, hydraulic oil, switch valve, selector valve, oil hydraulic pump, pressure inlet tube and hydraulic oil storage tank.Wherein the function of pressure inlet tube 15 is connected with the cavity of resorption of selector valve the upstream of main valve, and the pressure from valve downstream is acted on diaphragm 6, and be delivered in elongate rod 3 by the mangetic core assembly 5 be fixedly connected with diaphragm 6.
Wherein, the critical piece of selector valve 20 comprises pole cap 1, bar cage 2, elongate rod 3, valve body 4, mangetic core assembly 5 and diaphragm 6 etc.Wherein trigger selector valve 20 and change working position thus the parts changing its internal hydraulic pressure oil passage are elongate rod 3, it is outside that it is installed on valve body 4, and one end connects with spool 5, and the other end connects with the pole cap 1 being installed on bar cage 2.
Pressure from switch valve upstream line 14 to be acted on diaphragm 6 and is delivered in elongate rod 3 by mangetic core assembly 5.When pipeline pressure is lower than set point, the load that elongate rod 3 is born is less than ultimate load and pressure bar stabilization, the end thrust of elongate rod makes mangetic core assembly 5 be in working position one, now the path of hydraulic oil 10 flow further downstream is closed, spring final controlling element piston 9 is subject to the supporting effect of hydraulic oil 10, cannot action, now switch valve 17 is in normal valve position, when the pressure from switch valve upstream line 14 is higher than specified point, the load that elongate rod 3 is born will exceed ultimate load and strut buckling, now its effective length can significantly diminish moment, its thrust acted on mangetic core assembly 5 can reduce suddenly, diaphragm 6 and mangetic core assembly 5 under pressure medium promotes action to working position two, now the passage of hydraulic oil 10 flow further downstream is opened, hydraulic oil 10 flow further downstream, the supporting effect of hydraulic oil 10 pairs of spring final controlling element pistons 9 simultaneously disappears, the action of pushing switch valve execution architecture 19, make switch valve 17 action to improper valve position (if switch valve 17 is in standard-sized sheet position under nominal situation, then under superpressure operating mode, switch valve 17 should cut out automatically, valve position becomes complete shut-down position, if switch valve 17 is in complete shut-down position under nominal situation, then under superpressure operating mode, switch valve 17 should be opened automatically, and valve position becomes standard-sized sheet position), thus achieve automatic unlatching or the closedown of superpressure operating mode lower valve.
After strut buckling and switch valve 17 auto-action occur elongate rod 3 and pressure recover in pressure piping is normal, pressure can be applied from valve body outside to mangetic core assembly 5, make mangetic core assembly 5 and diaphragm 6 return to working position one.Now elongate rod 3 changed, then use oil pump 13 to be pushed back in spring final controlling element cylinder body 7 through one-way valve 11 by hydraulic oil 10, now switch valve execution architecture 19 drives switch valve 17 to reset.
Accompanying drawing explanation
Fig. 1 is the main structure figure of the novel diaphragm auxiliary type strut buckling flip-over type valve member that the present invention relates to;
Schematic diagram when Fig. 2 is the novel diaphragm auxiliary type strut buckling flip-over type valve member action that the present invention relates to;
Schematic diagram when Fig. 3 is the novel diaphragm auxiliary type strut buckling flip-over type valve member reset that the present invention relates to;
Embodiment
Novel diaphragm auxiliary type strut buckling flip-over type valve member, critical piece comprises spring final controlling element cylinder body 7, spring final controlling element spring 8, spring final controlling element piston 9, hydraulic oil 10, one-way valve 11, hydraulic oil storage tank 12, oil pump 13, switch valve upstream line 14, pressure inlet tube 15, hydraulic oil connecting tube 16, switch valve 17, switch valve downstream line 18, switch valve execution architecture 19 and selector valve 20.See Fig. 1.
Wherein selector valve 20 is trigger mechanisms of whole valve member, and it is made up of pole cap 1, bar cage 2, elongate rod 3, valve body 4, spool 5 and diaphragm 6, and valve body 4 is wherein connected with hydraulic oil pipe 16.
Wherein pressure inlet tube 15 is connected with switch valve upstream line 14, and pipe medium pressure can be acted on diaphragm 6, and is delivered in elongate rod 3 by the mangetic core assembly 5 be fixedly connected with diaphragm 6; Switch valve 17 controls the circulation of medium in switch valve upstream line 14 and switch valve downstream line 18; Spring final controlling element cylinder body 7, spring final controlling element spring 8, spring final controlling element piston 9, hydraulic oil 10 and switch valve execution architecture 19 control the opening and closing of switch valve 17; One-way valve 11 controls the flow direction of hydraulic oil 10, makes hydraulic oil 10 can only flow to spring final controlling element cylinder body 7 from hydraulic oil storage tank 12; Hydraulic oil storage tank 12 is for storage liquid force feed 10; Oil pump 13 is for the reset of valve member.
The specific embodiment of the present invention is introduced below when using for switch valve 17 as emergency relief valve.
In normal conditions, switch valve 17 is in closed condition, from the pressure of switch valve upstream lower than setting value, the elongate rod 3 of selector valve 20 is born the load transmitted via diaphragm 6 and is less than ultimate load and pressure bar stabilization, the end thrust of elongate rod makes spool 5 be in working position one, has blocked the circulation passage of hydraulic oil 10 to hydraulic oil storage tank 12 at the mangetic core assembly 5 of this working position selector valve 20 and one-way valve 11 simultaneously.Hydraulic oil 10 has supporting effect for spring final controlling element piston 9 in spring final controlling element cylinder body 7.Spring final controlling element spring 8 is compressed, and stores elastic potential energy.See Fig. 1.
When the pressure in switch valve upstream line 14 reaches particular value, the pressure medium that diaphragm 6 is subject to reaches the ultimate load of elongate rod 3 by spool 5 power be delivered in elongate rod 3, elongate rod 3 unstability, now its effective length can significantly diminish moment, its thrust acted on mangetic core assembly 5 can reduce suddenly, pressure medium on diaphragm 6 promotes mangetic core assembly 5 action to working position two, now reversing valve assembly 5 channel connection that hydraulic oil connecting tube 16 is flowed to hydraulic oil storage tank 12, hydraulic oil 10 flows to hydraulic oil storage tank 12 from spring final controlling element cylinder body 7 rapidly, thus the supporting effect lost spring final controlling element piston 9.Spring final controlling element piston 9 moves under the impetus of spring final controlling element spring 8, makes switch valve execution architecture 19 action, is opened rapidly by switch valve 17, thus the medium in switch valve upstream line 14 is released to switch valve downstream line 18.See Fig. 2.
After the pressure recover in switch valve upstream line 14 is normal, promotes mangetic core assembly 5 by external force, make it be with dynamic diaphragm 6 to get back to work initialization position, and the elongate rod 3 more renewed.Now hydraulic oil connecting tube 16 is blocked to the circulation passage of hydraulic oil storage tank 12.Then by oil pump 13, hydraulic oil 10 is returned in spring final controlling element cylinder body 7 by one-way valve 11 from hydraulic oil storage tank through 12.Now spring final controlling element piston 9 is promoted by hydraulic oil 10, and Compress Spring final controlling element spring 8, is closed switch valve 17 by switch valve execution architecture 19 simultaneously, and whole valve member completes reset.See Fig. 3.
In addition, according to the Euler law of strut buckling, its ultimate load can be changed by the Young's modulus of adjustment elongate rod 3 and slenderness ratio, and then setting pressure during change switch valve 17 action.
When automatically closing under switch valve 17 of the present invention is designed to superpressure operating mode, only need switch valve execution architecture 19 90-degree rotation.Identical when embodiment and switch valve 17 are designed to superpressure emergency relief valve, do not repeat them here.
All features disclosed in this specification, or the step in disclosed all methods or process, except the special type mutually repelled and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalence or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (3)
1. a novel diaphragm auxiliary type strut buckling flip-over type valve member, critical piece comprises pole cap (1), bar cage (2), elongate rod (3), valve body (4), spool (5), diaphragm (6), spring final controlling element cylinder body (7), spring final controlling element spring (8), spring final controlling element piston (9), hydraulic oil (10), one-way valve (11), hydraulic oil storage tank (12), oil pump (13), switch valve upstream line (14), pressure inlet tube (15), hydraulic oil pipe (16), switch valve (17), switch valve downstream line (18), switch valve actuator (19) and selector valve (20), it is characterized in that: the working position of triggering spool (5) changes and hydraulic oil (10) flowed to hydraulic oil storage tank (12) and then makes the parts of switch valve (17) action be elongate rod (3), when mangetic core assembly (5) load be loaded in elongate rod (3) by being fixedly connected with diaphragm (6) exceedes the Buckling Load of elongate rod (3), elongate rod (3) unstability bends and then the action of trigger valve door assembly.
2. novel diaphragm auxiliary type strut buckling flip-over type valve member according to claim 1, wherein the function of pressure inlet tube (15) is connected by the cavity of resorption of the upstream of switch valve (17) with selector valve (20), the diaphragm of selector valve (20) (6) is made to bear pressure from switch valve (17) upstream, and be loaded in elongate rod (3) by the mangetic core assembly (5) be fixedly connected with diaphragm (6), when pressure is lower than setting value, the load that elongate rod (3) is born is less than ultimate load and pressure bar stabilization, the end thrust of elongate rod (3) makes spool (5) be in working position one, now spring final controlling element can make switch valve (17) be in normal valve position, when pressure medium exceedes the ultimate load of elongate rod (3) by the active force that diaphragm (6) produces, elongate rod (3) unstability bends, selector valve (20) makes hydraulic oil channel conducting, hydraulic oil (10) is to hydraulic oil storage tank flowing (12), spring final controlling element piston (9) is caused to lose the supporting effect of hydraulic oil (10), under the promotion of spring, make switch valve action to working position two, switch valve (17) will change into improper valve position by normal valve position, thus realize automatic unlatching or the closedown of superpressure operating mode lower valve.
3. novel diaphragm auxiliary type strut buckling flip-over type valve member according to claim 1, after pressure recover in its action and in switch valve upstream line (14) is normal, itself and diaphragm (6) can be made to return to initialization position to spool (5) applying pressure from valve body (4) is outside, and then elongate rod (3) is changed, after elongate rod (3) replacing, hydraulic oil pipe (16) is blocked to the circulation passage of hydraulic oil storage tank (12), by oil pump (13), hydraulic oil (10) is pushed back in spring final controlling element cylinder body (7) from hydraulic oil storage tank (12) via one-way valve (11), hydraulic oil (10) will promote spring final controlling element piston (9) and then Compress Spring final controlling element spring (8), switch valve (17) can cut out by switch valve actuator (19) in the process, whole valve member completes reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125408.6A CN105318057A (en) | 2015-03-23 | 2015-03-23 | Novel membrane-assisting type compression bar instability trigger type valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125408.6A CN105318057A (en) | 2015-03-23 | 2015-03-23 | Novel membrane-assisting type compression bar instability trigger type valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105318057A true CN105318057A (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510125408.6A Withdrawn CN105318057A (en) | 2015-03-23 | 2015-03-23 | Novel membrane-assisting type compression bar instability trigger type valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105318057A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594365A (en) * | 2016-03-30 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve applicable to low pressure working conditions and triggered to act through pressure bar destabilizing |
| CN108825833A (en) * | 2018-08-03 | 2018-11-16 | 江苏瑞朗博机械设备有限公司 | A kind of valve system with isolating device |
| CN114871971A (en) * | 2022-06-21 | 2022-08-09 | 天长市安彩仪表有限公司 | Fastening tool for machining wear-resistant head |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451905U (en) * | 2012-02-20 | 2012-09-26 | 刘海亮 | Compression bar buckling trigger type pilot-operated pressure release valve |
| CN202691185U (en) * | 2012-06-08 | 2013-01-23 | 刘海亮 | Pressure rod trigger type high-pressure and low-pressure emergency shut-off valve |
| CN204062041U (en) * | 2014-02-17 | 2014-12-31 | 刘海亮 | By the automatic valve of strut buckling trigger action under superpressure operating mode |
| CN204805659U (en) * | 2015-03-23 | 2015-11-25 | 刘海亮 | Novel diaphragm auxiliary type depression bar unstability triggers type valve member |
-
2015
- 2015-03-23 CN CN201510125408.6A patent/CN105318057A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451905U (en) * | 2012-02-20 | 2012-09-26 | 刘海亮 | Compression bar buckling trigger type pilot-operated pressure release valve |
| CN202691185U (en) * | 2012-06-08 | 2013-01-23 | 刘海亮 | Pressure rod trigger type high-pressure and low-pressure emergency shut-off valve |
| CN204062041U (en) * | 2014-02-17 | 2014-12-31 | 刘海亮 | By the automatic valve of strut buckling trigger action under superpressure operating mode |
| CN204805659U (en) * | 2015-03-23 | 2015-11-25 | 刘海亮 | Novel diaphragm auxiliary type depression bar unstability triggers type valve member |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594365A (en) * | 2016-03-30 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve applicable to low pressure working conditions and triggered to act through pressure bar destabilizing |
| CN106594365B (en) * | 2016-03-30 | 2017-12-15 | 江苏瑞朗博机械设备有限公司 | Suitable for the automatic valve by strut buckling trigger action of low pressure operating mode |
| CN108825833A (en) * | 2018-08-03 | 2018-11-16 | 江苏瑞朗博机械设备有限公司 | A kind of valve system with isolating device |
| CN114871971A (en) * | 2022-06-21 | 2022-08-09 | 天长市安彩仪表有限公司 | Fastening tool for machining wear-resistant head |
| CN114871971B (en) * | 2022-06-21 | 2023-11-24 | 天长市安彩仪表有限公司 | Fastening tool for machining grinding head resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160216 Address after: 211316, No. 12 Tan Avenue, Gaochun Economic Development Zone, Nanjing, Jiangsu Applicant after: JIANGSU RUILANGBO MECHANICAL EQUIPMENT CO., LTD. Address before: 100176 No. 2 North Yongchang Road, Beijing economic and Technological Development Zone, Beijing Applicant before: Liu Hailiang Applicant before: Zhang Zaixiao Applicant before: Wang Lei Applicant before: Zhao Shoujun |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160210 |