CN204805647U - Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode - Google Patents
Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode Download PDFInfo
- Publication number
- CN204805647U CN204805647U CN201520114853.8U CN201520114853U CN204805647U CN 204805647 U CN204805647 U CN 204805647U CN 201520114853 U CN201520114853 U CN 201520114853U CN 204805647 U CN204805647 U CN 204805647U
- Authority
- CN
- China
- Prior art keywords
- pressure
- diaphragm
- elongate rod
- operating mode
- connecting rod
- 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.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to a diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode, essential element include valve body, valve clack, valve gap, locking arm, hasp, diaphragm casing, diaphragm, connecting rod, hinge, linkage rocking arm, elongate rod, nut, pole cage and pressure communicating pipe. Wherein pressure communicating pipe introduce the casing with pressure medium and on acting on the diaphragm, produce the thrust -load, this load through with the integrative connecting rod loading of diaphragm on elongate rod. Under normal operating mode, the load that elongate rod bore is less than its critical load, and elongate rod remains stable, this moment the hasp by the locking in the locking arm, the valve clack is fixed unable take -off, the device is in the closed condition, under improper operating mode, the unstability takes place and loses bearing capacity for elongate rod, takes place the displacement under diaphragm and connecting rod are promoted by pressure medium to drive the action of linkage rocking arm, the locking arm is linked the rocking arm and drives and produce the displacement, and the hasp releases from the locking arm, and the valve clack broke away from the sealed face of valve body this moment, realized the purpose of pressure release.
Description
Technical field
The utility model relates to a kind of pressure relief device, relates 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 utility model 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 of minute-pressure operating mode that what the utility model related to be applicable 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, it is characterized in that: the parts of control gear pressure release are elongate rod, bend flip flop equipment pressure release by the unstability of elongate rod.
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 utility model relates to;
Fig. 2 be the utility model relate 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 utility model relates to;
Fig. 4 be the utility model relate 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 utility model is not limited to aforesaid embodiment.The utility model 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 flap (2), hammerlock (4), snap close (5), diaphragm (7), connecting rod (8), hinge (9), interlock pivoted arm (10) member reset 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 |
|---|---|---|---|
| CN201520114853.8U CN204805647U (en) | 2015-02-17 | 2015-02-17 | Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114853.8U CN204805647U (en) | 2015-02-17 | 2015-02-17 | Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805647U true CN204805647U (en) | 2015-11-25 |
Family
ID=54590475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520114853.8U Active CN204805647U (en) | 2015-02-17 | 2015-02-17 | Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318053A (en) * | 2015-02-17 | 2016-02-10 | 刘海亮 | Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition |
-
2015
- 2015-02-17 CN CN201520114853.8U patent/CN204805647U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318053A (en) * | 2015-02-17 | 2016-02-10 | 刘海亮 | Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202812338U (en) | Pressure bar instability trigger type decompression valve | |
| CN205371730U (en) | By automatic valve of depression bar unstability trigger action during superpressure | |
| CN105318053A (en) | Membrane auxiliary type compression bar destabilizing trigger type pressure relief device applied to micro-pressure working condition | |
| CN103470827B (en) | Compression bar buckling triggering type pressure release valve | |
| CN202812339U (en) | Novel pressure lever instability triggering pressure release valve | |
| CN204805647U (en) | Diaphragm auxiliary type depression bar unstability triggers type pressure relief device suitable for minute -pressure operating mode | |
| CN106594338B (en) | By the automatic valve of strut buckling trigger action during superpressure | |
| CN105318091A (en) | Automatic valve triggered by compression bar destabilizing to act under overpressure working condition | |
| CN105201950A (en) | Overload overflowing valve for integral multi-way valve | |
| CN204533701U (en) | The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type | |
| CN204805649U (en) | Depression bar unstability triggers type evacuation relief valve suitable for low pressure operating mode | |
| CN105318054A (en) | Membrane auxiliary type compression bar destabilizing pressure relief device applied to micro-pressure working condition | |
| CN102748334A (en) | Converging unloading valve | |
| CN105318057A (en) | Novel membrane-assisting type compression bar instability trigger type valve assembly | |
| CN105465461A (en) | Pilot-operated type decompression valve triggered through pin bending | |
| CN103629194A (en) | Mechanical quick-operation type integrated electro-hydraulic actuator | |
| CN204805651U (en) | Diaphragm auxiliary type depression bar unstability pressure relief device suitable for minute -pressure operating mode | |
| CN204805696U (en) | By automatic valve of depression bar unstability trigger action under superpressure operating mode | |
| CN202691185U (en) | Pressure rod trigger type high-pressure and low-pressure emergency shut-off valve | |
| CN204805697U (en) | Crooked round pin triggers type guide formula relief valve | |
| CN204805659U (en) | Novel diaphragm auxiliary type depression bar unstability triggers type valve member | |
| CN105782523B (en) | The valve member of strut buckling trigger action when superpressure | |
| CN105318055A (en) | Compression bar destabilizing trigger type emptying pressure relief valve applied to micro-pressure working condition | |
| CN105318060A (en) | Membrane auxiliary type micro-pressure working condition compression bar destabilizing trigger type emptying pressure relief valve | |
| CN203782783U (en) | Pump for mini-excavator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160217 Address after: 211316, No. 12 Tan Avenue, Gaochun Economic Development Zone, Nanjing, Jiangsu Patentee after: JIANGSU RELIABLE MACHINERY EQUIPMENT Co.,Ltd. Address before: 100176 No. 2 North Yongchang Road, Beijing economic and Technological Development Zone, Beijing Patentee before: Liu Hailiang Patentee before: Zhang Zaixiao Patentee before: Wang Lei Patentee before: Zhao Shoujun |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhao Shoujun Document name: payment instructions |
|
| DD01 | Delivery of document by public notice |