CN204533701U - The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type - Google Patents
The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type Download PDFInfo
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- CN204533701U CN204533701U CN201520120056.0U CN201520120056U CN204533701U CN 204533701 U CN204533701 U CN 204533701U CN 201520120056 U CN201520120056 U CN 201520120056U CN 204533701 U CN204533701 U CN 204533701U
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- flap
- diaphragm
- connecting rod
- decompression valves
- elongate rod
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- 230000006837 decompression Effects 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000008093 supporting effect Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
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Abstract
The utility model is the emptying Decompression valves of a kind of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type.Its elongate rod applies strut buckling principle and triggers releasing of this Decompression valves.Under nominal situation, pressure medium acts on diaphragm, and the power be delivered in elongate rod is less than the ultimate load of elongate rod unstability, and elongate rod is stablized, and simultaneously its axial force makes connecting rod cannot along movement of roof.Now be in connecting rod, steel ball between flap and top board makes flap along sleeve axial motion, cannot keep sealing between flap and valve body.Under damage, thrust in elongate rod is more than or equal to the ultimate load of elongate rod unstability, elongate rod unstability, lose the support to connecting rod, connecting rod and diaphragm to the motion of elongate rod direction, are now in connecting rod under the promotion of pressure medium, steel ball between flap and top board falls in the groove of connecting rod, lose the supporting effect to flap, flap is along sleeve axial motion under the effect of pressure medium, and depart from valve body, medium outwardly discharges.
Description
Technical field
The utility model relates to a kind of Decompression valves, relates to a kind of emptying Decompression valves 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 Decompression valves automatically opened when tank inner pressure transfinites.The superpressure that petroleum storage tank can allow is usually very low, and this proposes very high requirement for this type of Decompression valves.
The utility model is the emptying Decompression valves of a kind of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type, 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 Decompression valves 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 realize the pressure release of Decompression valves.
Through looking into, there is no the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type at present.
Summary of the invention
The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type that the utility model relates to, critical piece comprises valve body, flap, connecting rod, steel ball, top board, diaphragm, diaphragm housing, sleeve, stud, linear bearing, locking nut, bar cage, nut, pressure communication pipe and elongate rod.
Wherein elongate rod is the element of trigger action, and it applies the pressure bar stabilization of elongate rod and strut buckling principle triggers releasing of this Decompression valves.
The flange of valve body one end is connected with other pipeline, forms sealing, ensure the sealing state of other pipeline before releasing between the other end and flap.Be locked nut and linear bearing of flap is fixed on sleeve, makes flap can only moving axially along sleeve.Stud one end is fixed on valve body, and the other end is fixed on top board, makes the position between top board and valve body keep fixing.Diaphragm shell one end is fixed on top board, and the other end is fixed wtih bar cage.The cavity of valve body is connected with diaphragm housing by pressure communication pipe, and the pressure medium in valve body can be acted on diaphragm.Elongate rod is fixed between connecting rod and nut, for connecting rod provides axially support power.Nut is fixed on bar cage.When nominal situation, steel ball is sandwiched in flap, between connecting rod and top board, makes flap cannot along sleeve axial motion.When damage, connecting rod moves to the direction of elongate rod, and steel ball falls in the groove on connecting rod, makes flap lose supporting effect, and flap can axially move along sleeve under pressure medium effect.
When this emptying Decompression valves work, pressure medium is acted on diaphragm by pressure communication pipe and produces thrust, and this thrust can be delivered in elongate rod by connecting rod.In normal conditions, pressure medium acts on diaphragm, and the thrust be delivered in elongate rod is less than the ultimate load of elongate rod unstability, and elongate rod keeps pressure bar stabilization state, and its axial force makes connecting rod cannot along movement of roof simultaneously.Now be in connecting rod, steel ball between flap and top board makes flap along sleeve axial motion, cannot keep sealing state between flap and valve body.Under damage, pressure medium acts on diaphragm, and the thrust be delivered in elongate rod is more than or equal to the ultimate load of elongate rod unstability, elongate rod moment unstability bends, lose the supporting effect to connecting rod, connecting rod and diaphragm move to elongate rod direction under the promotion of pressure medium, now be in connecting rod, steel ball between flap and top board falls in the groove on connecting rod, and the supporting effect lost flap, flap under the effect of pressure medium along sleeve axial motion, depart from valve body, medium is outwardly discharged, realizes the object of pressure release.
Accompanying drawing explanation
Fig. 1 is the main structure figure of the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type that the utility model relates to;
Schematic diagram when Fig. 2 is diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type that the utility model relates to emptying Decompression valves normal state;
Schematic diagram when Fig. 3 is diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type that the utility model relates to emptying Decompression valves abnormal condition;
Fig. 4 is the flap of the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type that the utility model relates to, structure when normal state and abnormal condition of connecting rod and steel ball and position view.
Embodiment
The emptying Decompression valves of a kind of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type, critical piece comprises valve body 1, flap 2, connecting rod 3, steel ball 4, top board 5, diaphragm 6, diaphragm housing 7, sleeve 8, stud 9, linear bearing 10, locking nut 11, bar cage 12, nut 13, pressure communication pipe 14 and elongate rod 15 etc.See Fig. 1.
When this emptying Decompression valves work, pressure medium is acted on diaphragm 6 by pressure communication pipe 14 and produces thrust, and is delivered in elongate rod 15 by connecting rod 3.
In normal conditions, pressure medium acts on diaphragm 6, and the ultimate load of elongate rod 15 unstability is less than by connecting rod 3 thrust be delivered in elongate rod 15, elongate rod 15 keeps pressure bar stabilization state, and its axial force makes connecting rod 3 move in the hole in the middle of top board 5 simultaneously.Now be in connecting rod 3, steel ball 4 between flap 2 and top board 5 makes flap 2 along the axial motion of sleeve 8 (Fig. 4 is seen in the position of steel ball), cannot keep sealing state between flap and valve body.See Fig. 2.
Under damage, pressure medium acts on diaphragm 6, and the ultimate load of elongate rod 15 unstability is more than or equal to by the thrust that connecting rod 3 is delivered in elongate rod, elongate rod 15 moment unstability bends, lose the supporting effect to connecting rod 3, connecting rod 3 and diaphragm 6 move to elongate rod 15 direction under the promotion of pressure medium, now be in connecting rod 3, steel ball 4 between flap 2 and top board 5 falls in the groove on connecting rod 3, and the supporting effect (Fig. 4 is seen in the position of steel ball) lost flap 2, flap 2 under the effect of pressure medium along the axial motion of sleeve 8, depart from valve body 1, medium is outwardly discharged, realize the object of pressure release.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 15 and slenderness ratio, and then setting pressure during change Decompression valves 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. the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type, its critical piece comprises valve body (1), flap (2), connecting rod (3), steel ball (4), top board (5), diaphragm (6), diaphragm housing (7), sleeve (8), stud (9), linear bearing (10), locking nut (11), bar cage (12), nut (13), pressure communication pipe (14) and elongate rod (15) etc., it is characterized in that: elongate rod (15) is fixed between connecting rod (3) and nut (13), for connecting rod (3) provides axially support power.
2. the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type according to claim 1, wherein valve body (1) is connected with diaphragm housing (7) by pressure communication pipe (14), and the pressure medium in valve body (1) can be acted on diaphragm (6).
3. the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type according to claim 1, when nominal situation, steel ball (4) is sandwiched in flap (2), between connecting rod (3) and top board (5), makes flap (2) cannot along the axial motion of sleeve (8); When damage, connecting rod (3) moves to the direction of elongate rod (15) under pressure medium effect, steel ball (4) falls in the groove on connecting rod (3), lose supporting effect to flap (2), flap (2) can axially move along sleeve (8) under pressure medium effect.
4. the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type according to claim 1, wherein be locked nut (11) and linear bearing (10) of flap (2) is fixed on sleeve (8), makes flap (2) can only moving axially along sleeve (8).
5. the emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type according to claim 1, elongate rod (15) wherein can change its ultimate load by its Young's modulus of adjustment and slenderness ratio, and then changes the relieving pressure of Decompression valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120056.0U CN204533701U (en) | 2015-02-28 | 2015-02-28 | The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120056.0U CN204533701U (en) | 2015-02-28 | 2015-02-28 | The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type |
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| Publication Number | Publication Date |
|---|---|
| CN204533701U true CN204533701U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520120056.0U Active CN204533701U (en) | 2015-02-28 | 2015-02-28 | The emptying Decompression valves of diaphragm auxiliary type minute-pressure operating mode strut buckling flip-over type |
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| CN (1) | CN204533701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594338A (en) * | 2015-11-02 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve triggered to act by unstable pressure lever during over-pressing |
-
2015
- 2015-02-28 CN CN201520120056.0U patent/CN204533701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594338A (en) * | 2015-11-02 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve triggered to act by unstable pressure lever during over-pressing |
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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 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Shoujun Document name: payment instructions |