CN105318053A - Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition - Google Patents
Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition Download PDFInfo
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- CN105318053A CN105318053A CN201510086361.7A CN201510086361A CN105318053A CN 105318053 A CN105318053 A CN 105318053A CN 201510086361 A CN201510086361 A CN 201510086361A CN 105318053 A CN105318053 A CN 105318053A
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Abstract
The invention discloses a membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to the micro-pressure working condition. The membrane auxiliary type compression bar destabilizing trigger type pressure relief device mainly comprises a valve body, a valve clack, a valve deck, a lock arm, a lock catch, a membrane shell body, a membrane, a connecting rod, a hinge, a linkage tumbler, a slender bar, a nut, a bar cage and a pressure communicating pipe. The medium pressure is introduced to the shell body to be played on the membrane through the pressure communicating pipe, thrust load is produced, and the load is loaded on the slender bar through the connecting rod integrated with the membrane. Under the normal working condition, the load acting on the slender bar is less than the critical load of the slender bar, and the slender bar remains stable, the lock catch is locked in the lock arm at this moment, and the valve clack is fixed and can not take off, so that the device is in a closed state; under the abnormal working condition, the slender bar is destabilized and loses the bearing capacity, the membrane and the connecting rod are pushed by the medium pressure to move and drive the linkage tumbler to act, the lock arm is driven by the linkage tumbler to move, the lock catch is released from the lock catch, and the valve clack is disengaged from the sealing face of the valve body at this moment, so that the purpose of pressure relief is achieved.
Description
Technical field
The present invention relates to a kind of pressure relief device, relate to a kind of pressure relief device can automatically can opened when pressure exceedes setting value more specifically.
Background technique
In order to protect the equipment such as petroleum storage tank not by the infringement of superpressure, need to be arranged on the device automatically opening pressure release when tank inner pressure transfinites.The superpressure that petroleum storage tank can allow is usually very low, and this proposes very high requirement for pressure relief device.
The present invention is a kind of diaphragm auxiliary type strut buckling flip-over type pressure relief device being applicable to minute-pressure operating mode, and it designs the principle based on pressure bar stabilization and strut buckling.Pressure medium acts on and diaphragm and produce thrust load, and this thrust load is by being carried in elongate rod with the connecting rod of diaphragm one.When the Buckling Load of the active force that pressure medium produces on diaphragm lower than elongate rod, elongate rod is stablized, and the end thrust of elongate rod will make diaphragm and associated components maintain its home position, and pressure relief device is in closed condition; When the active force that pressure medium produces on diaphragm exceedes the ultimate load of elongate rod, elongate rod generation unstability and bending, and then the position of triggering associated components changes to the position that can make valve opening, thus the pressure release of implement device.
Through looking into, there is no diaphragm auxiliary type strut buckling flip-over type pressure relief device at present.
Summary of the invention
The diaphragm auxiliary type strut buckling flip-over type pressure relief device being applicable to minute-pressure operating mode that the present invention relates to, critical piece comprises valve body, flap, valve gap, hammerlock, snap close, diaphragm housing, diaphragm, connecting rod, hinge, interlock pivoted arm, elongate rod, nut, bar cage and pressure communication pipe.
Wherein, hammerlock, snap close, diaphragm, connecting rod, hinge, interlock pivoted arm, elongate rod constitute the trigger mechanism of device jointly.Elongate rod is the trigger component of device, and its one end connects with connecting rod, and the other end connects with the nut be arranged on bar cage.Pressure medium enters in diaphragm housing to act on diaphragm by pressure communication pipe and produces thrust load, and this thrust load is carried in elongate rod by the connecting rod be fixed as one with diaphragm.When pressure medium is lower than setting pressure, the load that elongate rod is born is less than its ultimate load, and elongate rod keeps stable, and now snap close is locked in hammerlock, and flap is fixed cannot take-off, and device is in closed condition; When pressure medium reaches setting pressure, the thrust load that elongate rod is born is greater than the ultimate load of elongate rod, elongate rod generation unstability and lose bearing capacity, diaphragm and connecting rod are promoted by pressure medium and are subjected to displacement, and driving interlock pivoted arm action, the hammerlock pivoted arm that linked drives and produces displacement, and snap close discharges from hammerlock, now flap loses the locking power of snap close by the sealing surface on pressure medium promotion disengaging valve body, realizes the object of pressure release.
Accompanying drawing explanation
Fig. 1 is the main structure figure being applicable to the diaphragm auxiliary type strut buckling flip-over type pressure relief device of minute-pressure operating mode that the present invention relates to;
Fig. 2 be the present invention relates to be applicable to the diaphragm auxiliary type strut buckling flip-over type pressure relief device normal state of minute-pressure operating mode time schematic diagram;
Fig. 3 is the diaphragm auxiliary type strut buckling flip-over type pressure relief device snap close release schematic diagram being applicable to minute-pressure operating mode that the present invention relates to;
Fig. 4 be the present invention relates to be applicable to the diaphragm auxiliary type strut buckling flip-over type pressure relief device abnormal condition of minute-pressure operating mode time schematic diagram;
Embodiment
Be applicable to a diaphragm auxiliary type strut buckling flip-over type pressure relief device for minute-pressure operating mode, critical piece comprises valve body 1, flap 2, valve gap 3, hammerlock 4, snap close 5, diaphragm housing 6, diaphragm 7, connecting rod 8, hinge 9, interlock pivoted arm 10, elongate rod 11, nut 12, bar cage 13 and pressure communication pipe 14.See Fig. 1.
Wherein, hammerlock 4, snap close 5, diaphragm 7, connecting rod 8, hinge 9, interlock pivoted arm 10, elongate rod 11 constitute the trigger mechanism of device jointly.Elongate rod 11 is trigger components of device, and its one end connects with connecting rod 8, and the other end connects with the nut 12 be arranged on bar cage 13.
Pressure medium is entered by pressure communication pipe 14 and acts on diaphragm 7 in diaphragm housing 6 and produce thrust load, and this thrust load is carried in elongate rod 11 by the connecting rod 8 be fixed as one with diaphragm 7.
In normal conditions, the pressure medium of flap 2 upstream is lower than setting pressure, accordingly, enter diaphragm housing 6 by pressure communication pipe 14 and the pressure medium acted on diaphragm 7 lower than setting pressure, now, be less than the ultimate load of elongate rod 11 by connecting rod 8 thrust load acted in elongate rod 11, elongate rod 11 keeps stable, now snap close 5 is locked in hammerlock 4, and flap 2 is fixed cannot take-off, and device is in closed condition.See Fig. 2.
Under damage, enter diaphragm housing 6 by pressure communication pipe 14 and the pressure medium acted on diaphragm 7 lower than setting pressure, the ultimate load of elongate rod 11 is greater than by connecting rod 8 thrust load acted in elongate rod 11, there is unstability and lose bearing capacity in elongate rod 11, diaphragm 7 and connecting rod 8 are promoted down to be subjected to displacement by pressure medium, and drive the action of interlock pivoted arm 10, and hammerlock 4 is driven generation displacement by interlock pivoted arm 10, snap close 5 discharges from hammerlock 4, sees Fig. 3.Now flap 2 loses the locking power of snap close 5 by the sealing surface on pressure medium promotion disengaging valve body 1, realizes the object of pressure release.See Fig. 4.
There is strut buckling and after pressure release in elongate rod 11, can from pressure relief device outside by member reset such as flap 2, hammerlock 4, snap close 5, diaphragm 7, connecting rod 8, hinge 9, interlock pivoted arms 10 after, after valve is resealed, elongate rod 11 is changed.
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 11 and slenderness ratio, and then setting pressure during modifier action.
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 (5)
1. one kind is applicable to the diaphragm auxiliary type strut buckling flip-over type pressure relief device of minute-pressure operating mode, its critical piece comprises valve body (1), flap (2), valve gap (3), hammerlock (4), snap close (5), diaphragm housing (6), diaphragm (7), connecting rod (8), hinge (9), interlock pivoted arm (10), elongate rod (11), nut (12), bar cage (13) and pressure communication pipe (14), it is characterized in that: the parts of control gear pressure release are elongate rod (11), flip flop equipment pressure release is bent by the unstability of elongate rod (11).
2. the diaphragm auxiliary type strut buckling flip-over type pressure relief device being applicable to minute-pressure operating mode according to claim 1, wherein the pressure of flap (2) upstream is introduced housing (6) and act on diaphragm (7) and produce thrust load by pressure communication pipe (14), and this thrust load is carried in elongate rod (11) by the connecting rod (8) be fixed as one with diaphragm (7).
3. the diaphragm auxiliary type strut buckling flip-over type pressure relief device being applicable to minute-pressure operating mode according to claim 1, wherein hammerlock (4), snap close (5), diaphragm (7), connecting rod (8), hinge (9), interlock pivoted arm (10), elongate rod (11) constitute the trigger mechanism of device jointly, in normal conditions, the pressure medium of flap (2) upstream is lower than setting pressure, the ultimate load of elongate rod (11) is less than by connecting rod (8) thrust load acted in elongate rod (11), elongate rod (11) keeps stable, now snap close (5) is locked in hammerlock (4), flap (2) is fixed cannot take-off, and device is in closed condition, under damage, enter diaphragm housing (6) by pressure communication pipe (14) and the pressure medium acted on diaphragm (7) lower than setting pressure, the ultimate load of elongate rod (11) is greater than by connecting rod (8) thrust load acted in elongate rod (11), there is unstability and lose bearing capacity in elongate rod (11), diaphragm (7) and connecting rod (8) are promoted down to be subjected to displacement by pressure medium, and drive interlock pivoted arm (10) action, hammerlock (4) is driven by interlock pivoted arm (10) and produces displacement, snap close (5) discharges from hammerlock (4), now flap (2) loses the locking power of snap close (5) by the sealing surface on pressure medium promotion disengaging valve body (1), realize the object of pressure release.
4. the diaphragm auxiliary type strut buckling flip-over type pressure relief device being applicable to minute-pressure operating mode according to claim 1, wherein there is strut buckling and after pressure release in elongate rod (11), can from pressure relief device outside by member reset such as flap (2), hammerlock (4), snap close (5), diaphragm (7), connecting rod (8), hinge (9), interlocks pivoted arm (10) after, after valve is resealed, elongate rod (11) is changed.
5. the diaphragm auxiliary type strut buckling flip-over type pressure relief device being applicable to minute-pressure operating mode according to claim 1, elongate rod (11) wherein can change its ultimate load by its Young's modulus of adjustment and slenderness ratio, and then the relieving pressure of modifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086361.7A CN105318053A (en) | 2015-02-17 | 2015-02-17 | Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086361.7A CN105318053A (en) | 2015-02-17 | 2015-02-17 | Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition |
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| Publication Number | Publication Date |
|---|---|
| CN105318053A true CN105318053A (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510086361.7A Withdrawn CN105318053A (en) | 2015-02-17 | 2015-02-17 | Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition |
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| CN (1) | CN105318053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443815A (en) * | 2015-02-28 | 2016-03-30 | 江苏瑞朗博机械设备有限公司 | Membrane auxiliary compression bar buckling trigger type automatic valve |
| 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 |
| CN108412606A (en) * | 2018-01-30 | 2018-08-17 | 东风商用车有限公司 | A kind of vehicle air compressor energy-saving pressurized system |
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| US6155284A (en) * | 1999-03-17 | 2000-12-05 | Scantlin; Gary | Buckling pin latch actuated safety relief valve |
| US6325088B1 (en) * | 1999-03-17 | 2001-12-04 | Gary W. Scantlin | Buckling pin actuated, pilot operated pressure relief valve |
| CN2559848Y (en) * | 2002-07-29 | 2003-07-09 | 刘斌 | Easy-to-dismounting and mounting indirect effet type pressure regulating valve |
| CN202812344U (en) * | 2012-09-11 | 2013-03-20 | 天津市易泰柯自动控制设备有限公司 | Pressure-relief safety valve |
| CN103470827A (en) * | 2012-06-08 | 2013-12-25 | 刘海亮 | Novel compression bar buckling triggering type pressure release valve |
| CN204805647U (en) * | 2015-02-17 | 2015-11-25 | 刘海亮 | Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode |
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2015
- 2015-02-17 CN CN201510086361.7A patent/CN105318053A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155284A (en) * | 1999-03-17 | 2000-12-05 | Scantlin; Gary | Buckling pin latch actuated safety relief valve |
| US6325088B1 (en) * | 1999-03-17 | 2001-12-04 | Gary W. Scantlin | Buckling pin actuated, pilot operated pressure relief valve |
| CN2559848Y (en) * | 2002-07-29 | 2003-07-09 | 刘斌 | Easy-to-dismounting and mounting indirect effet type pressure regulating valve |
| CN103470827A (en) * | 2012-06-08 | 2013-12-25 | 刘海亮 | Novel compression bar buckling triggering type pressure release valve |
| CN202812344U (en) * | 2012-09-11 | 2013-03-20 | 天津市易泰柯自动控制设备有限公司 | Pressure-relief safety valve |
| CN204805647U (en) * | 2015-02-17 | 2015-11-25 | 刘海亮 | Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443815A (en) * | 2015-02-28 | 2016-03-30 | 江苏瑞朗博机械设备有限公司 | Membrane auxiliary compression bar buckling trigger type automatic valve |
| CN105443815B (en) * | 2015-02-28 | 2019-02-19 | 江苏瑞朗博机械设备有限公司 | The automatic valve of diaphragm assist type strut buckling triggering type |
| 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 |
| CN108412606A (en) * | 2018-01-30 | 2018-08-17 | 东风商用车有限公司 | A kind of vehicle air compressor energy-saving pressurized system |
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| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160303 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, Daxing District Applicant before: Liu Hailiang Applicant before: Zhang Zaixiao Applicant before: Wang Lei Applicant before: Zhao Shoujun |
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| DD01 | Delivery of document by public notice |
Addressee: Liu Hailiang Document name: Notification of Passing Examination on Formalities |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160210 |