CN204805648U - Modularized design high pressure operating mode depression bar unstability triggers type relief valve - Google Patents
Modularized design high pressure operating mode depression bar unstability triggers type relief valve Download PDFInfo
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- CN204805648U CN204805648U CN201520120012.8U CN201520120012U CN204805648U CN 204805648 U CN204805648 U CN 204805648U CN 201520120012 U CN201520120012 U CN 201520120012U CN 204805648 U CN204805648 U CN 204805648U
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- piston
- operating mode
- elongate rod
- high pressure
- pressure operating
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- 230000006837 decompression Effects 0.000 claims description 20
- 238000009510 drug design Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model relates to a modularized design high pressure operating mode depression bar unstability triggers type relief valve. The essential element includes valve body, piston, inside lining, valve gap, needle cage, elongate rod and nut. This device trigger the euler law of having used the elongate rod unstability. And elongate rod's unstability advocates to come from the piston in pressure medium effect thrust down, and when thrust when pressure medium is used in the piston on was greater than elongate rod's critical load, elongate rod took place unstability forfeiture bearing capacity, and the holding power that the piston lost elongate rod is broken away from sealed on the valve body inside lining by the pressure medium promotion, installs and converts the purpose that the state of opening has reached the pressure release into by the closed condition. Effective lifting surface area that can the rational design piston makes it can be applicable to high -pressure operating mode. Simultaneously parts such as piston, inside lining and valve gap are designed into the module, break down or change convenient and fast when wearing and tearing.
Description
Technical field
The utility model relates to a kind of safety valve, relates to a kind of modular design more specifically, and the Decompression valves can automatically can opened when pressure exceedes setting value.
Background technique
In industries such as oil, mining, drilling wells; the perils such as the blast that may cause to prevent blowout and blowout out of control; the device of the pipeline of protective system and their upstream and downstream and equipment, can open the Decompression valves of pressure release automatically under often needing to be arranged on superpressure operating mode.
This use is novel is a kind of modular design high pressure operating mode strut buckling flip-over type Decompression valves, can be applicable to high pressure operating mode, and have very high pressure release precision by the effective lifting surface area of adjustment piston.
Summary of the invention
The modular design high pressure operating mode strut buckling flip-over type Decompression valves that the utility model relates to, critical piece comprises valve body, piston, liner, valve gap, pin cage, elongate rod and nut.
Wherein, trigger component is elongate rod, and it is installed on valve body outside, and one end connects with piston, and the other end connects with the nut being installed on pin cage.When the pressure medium of valve body upstream is lower than setting value, pressure medium is less than the ultimate load of elongate rod by the thrust load of piston action in elongate rod, and elongate rod keeps stable, and piston is in working position one, and device is in closed condition; When the pressure medium from valve body upstream reaches setting value, pressure medium is greater than the ultimate load of elongate rod by the thrust load of piston action in elongate rod, elongate rod unstability causes its effective length moment significantly to diminish, piston moves to working position two under pressure medium promotes, the sealing surface that now piston is lining with in departing from makes device open, thus achieves the object that superpressure operating mode lower device opens pressure release automatically.
The modular design high pressure operating mode strut buckling flip-over type Decompression valves that the utility model relates to, the effective diameter chosen of its piston two ends seal ring is different, the pressure of medium by act on piston two seal rings between anchor ring on.Can by this annular of Reasonable adjustment effectively lifting surface area, make Decompression valves with apply operating mode pressure adapt.
The modular design high pressure operating mode strut buckling flip-over type Decompression valves that the utility model relates to, its piston, liner have become a module with component combinations such as valve gaps.Can overall extract in valve body.When this safety valve application is when wearing and tearing in more serious medium, can regularly change this module, and without the need to being disassembled from pipeline by valve body, it is convenient to change.
Accompanying drawing explanation
Fig. 1 is the main structure figure of the modular design high pressure operating mode strut buckling flip-over type Decompression valves that the utility model relates to;
Fig. 2 is two piston seal loop diameters and the effective lifting surface area schematic diagram of annular on the modular design high pressure operating mode strut buckling flip-over type Decompression valves that relates to of the utility model;
Fig. 3 is modular design high pressure operating mode strut buckling flip-over type Decompression valves module that the utility model relates to schematic diagram when detaching;
Fig. 4 be the utility model relate to modular design high pressure operating mode strut buckling flip-over type Decompression valves normal state time schematic diagram;
Fig. 5 be the utility model relate to modular design high pressure operating mode strut buckling flip-over type Decompression valves abnormal condition time schematic diagram;
Embodiment
Modular design high pressure operating mode strut buckling flip-over type Decompression valves, critical piece comprises valve body 1, piston 2, liner 3, valve gap 4, pin cage 5, elongate rod 6 and nut 7.Wherein elongate rod 6 is parts of trigger action, and its strut buckling principle applying elongate rod triggers the pressure release of valve.See Fig. 1.
In normal conditions, medium flows into valve body 1 from right side adapter as shown in Figure 1.After valve triggers pressure release, medium can be discharged from downside adapter as shown in Figure 1.
Wherein, the seal ring effective diameter chosen in piston 2 two ends is different, the pressure of medium by act on piston 2 two seal rings between anchor ring on.Can by this annular of Reasonable adjustment effectively lifting surface area, make Decompression valves with apply operating mode pressure adapt.
The external diameter supposing the small sealing ring of piston 2 is d, supposes that the external diameter of big sealing ring is D.Then the effectively stressed area of annular is π (D
2-d
2)/4.As shown in Figure 2.When D and d size close to time, annular effectively lifting surface area π (D
2-d
2)/4 can be very little.Even if the pressure of medium is very large, the axial force acted in elongate rod 6 by the effective lifting surface area of annular is also very little, makes this structure be applicable to high pressure operating mode.
Introduce embodiment of the present utility model below.
In normal conditions, when the pressure medium of valve body 1 upstream is lower than setting value, pressure medium is less than the ultimate load of elongate rod 6 by piston 2 thrust load acted in elongate rod 6, and elongate rod 6 keeps stable, piston 2 is in working position one, and device is in closed condition.See Fig. 4.
Under damage, when the pressure medium of valve body 1 upstream reaches setting value, pressure medium is greater than the ultimate load of elongate rod 6 by piston 2 thrust load acted in elongate rod 6, elongate rod 6 unstability causes its effective length moment significantly to diminish, piston 2 moves to working position two under pressure medium promotes, and the sealing surface that now piston 2 is lining with in departing from makes device open pressure release.See Fig. 5.
When this safety valve application is when wearing and tearing in more serious medium, the wearing and tearing of piston 2 and liner 3 can be relatively serious.In this model utility, have employed modular design, by piston 2, the parts such as liner 3 and valve gap 4 are designed to a module.This module overall can be dismantled and shifts out from valve body 1.As shown in Figure 3.When piston 2, after wearing and tearing appear in the module that liner 3 and valve gap 4 form, integral replacing can be carried out to module, and valve body 1 need not be disassembled from system pipeline.Make maintain and replace more convenient.
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 6 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 (4)
1. a modular design high pressure operating mode strut buckling flip-over type Decompression valves, critical piece comprises valve body (1), piston (2), liner (3), valve gap (4), pin cage (5), elongate rod (6) and nut (7).
2. modular design high pressure operating mode strut buckling flip-over type Decompression valves according to claim 1, its trigger component is the elongate rod (6) of the Euler law applying strut buckling, and its ultimate load can be changed by adjustment material and slenderness ratio, and then change the setting pressure of this Decompression valves.
3. modular design high pressure operating mode strut buckling flip-over type Decompression valves according to claim 1, its piston (2), liner (3), the module that valve gap (4) composition one can overall shift out from valve body (1), is convenient to maintain and replace.
4. modular design high pressure operating mode strut buckling flip-over type Decompression valves according to claim 1, wherein the seal ring effective diameter chosen in piston (2) two ends is different, on the anchor ring between two seal rings that the pressure of medium will act on piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120012.8U CN204805648U (en) | 2015-02-28 | 2015-02-28 | Modularized design high pressure operating mode depression bar unstability triggers type relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120012.8U CN204805648U (en) | 2015-02-28 | 2015-02-28 | Modularized design high pressure operating mode depression bar unstability triggers type relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805648U true CN204805648U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520120012.8U Active CN204805648U (en) | 2015-02-28 | 2015-02-28 | Modularized design high pressure operating mode depression bar unstability triggers type relief valve |
Country Status (1)
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|---|---|
| CN (1) | CN204805648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465431A (en) * | 2015-02-28 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | Modular design and pressure bar destabilizing trigger type relief valve under high pressure working condition |
-
2015
- 2015-02-28 CN CN201520120012.8U patent/CN204805648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465431A (en) * | 2015-02-28 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | Modular design and pressure bar destabilizing trigger type relief valve under high pressure working condition |
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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 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Shoujun Document name: payment instructions |