CN204805687U - Depression bar unstability of medium direct drive triggers type automatic valve - Google Patents
Depression bar unstability of medium direct drive triggers type automatic valve Download PDFInfo
- Publication number
- CN204805687U CN204805687U CN201520115159.8U CN201520115159U CN204805687U CN 204805687 U CN204805687 U CN 204805687U CN 201520115159 U CN201520115159 U CN 201520115159U CN 204805687 U CN204805687 U CN 204805687U
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- Prior art keywords
- valve
- pilot valve
- medium
- elongate rod
- over type
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- 238000011144 upstream manufacturing Methods 0.000 claims description 28
- 230000000694 effects Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a depression bar unstability of medium direct drive triggers type automatic valve. Its essential element includes that executor, support, main valve, front end draw presses pipe, rear end to draw to press pipe, gas holder and depression bar unstability to trigger the type pilot valve to constitute, and wherein to trigger the type pilot valve be the trigger mechanism of this automatic valve action to the depression bar unstability constituteed of pilot valve valve body, pilot valve piston, pilot valve valve gap, elongate rod, pole cage and wand cap. When pressure medium reached set pressure, elongate rod's unstability bending triggered the passageway that type pilot valve intercommunication upper reaches medium got into the executor, and upper reaches medium can flow through the depression bar unstability and trigger type pilot valve entering executor drive main valve action to improper valve position. This valve member can be used as emergency vent device or emergency shutoff device.
Description
Technical field
The utility model relates to a kind of automatic valve, relates to a kind of valve can automatically opened when pressure exceedes setting value or close 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 make pneumatic actuator action, reach the object of unlatching or throttle down.
Use pressure transmitter, solenoid valve, final controlling element, 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 goes wrong, or the power supply of solenoid valve goes wrong, just may occur that pressure exceedes setting pressure, final controlling element 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 utility model forms primarily of final controlling element, switch valve and strut buckling flip-over type pilot valve.Wherein, the design of strut buckling flip-over type pilot valve is based on the principle of pressure bar stabilization and strut buckling, its piston bears from the pressure medium 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, and the end thrust of elongate rod makes pilot valve piston be in sealing state, and now valve is in normal valve position; When the active force that pressure medium produces exceedes the ultimate load of elongate rod, elongate rod unstability, strut buckling flip-over type pilot valve piston moment moves to elongate rod direction, lose seal action, medium enters final controlling element by pilot valve, promotes final controlling element action and then makes valve change into improper valve position by normal valve position.Thus achieve automatic unlatching or the closedown of superpressure operating mode lower valve.
Through looking into, design based on pressure bar stabilization and strut buckling principle at present by the automatic valve of the strut buckling trigger action of medium Direct driver.
Summary of the invention
The strut buckling flip-over type automatic valve of the medium Direct driver that the utility model relates to forms primarily of final controlling element, support, main valve, front end pressure inlet tube, rear end pressure inlet tube, gas holder and pilot valve.
Main valve upstream medium, gas holder and strut buckling flip-over type pilot valve couple together by front end pressure inlet tube and rear end pressure inlet tube.Pressure inlet tube one end, front end is connected with upstream line, and the other end is connected with gas holder; Pressure inlet tube one end, rear end is connected with gas holder, and the other end is connected with strut buckling flip-over type pilot valve, and the pressure that namely pilot valve piston bears is main valve upstream pressure.Power is passed to elongate rod by pilot valve piston again, makes elongate rod be subject to axial pressure effect.
In normal conditions, the pressure of upstream medium is less than setting pressure, axial force in elongate rod is less than the critical force of elongate rod unstability, elongate rod keeps linear state, the thrust of elongate rod will make piston and the pilot valve body seal element close contact of pilot valve, and make strut buckling flip-over type pilot valve be in sealing state.Now upstream medium cannot enter final controlling element through strut buckling flip-over type pilot valve, and main valve is in normal valve position state.
Under damage, the pressure of main valve upstream medium is greater than setting pressure, its thrust load acted in elongate rod produced is greater than the Buckling Load of elongate rod, unstability bends by elongate rod, its effective length can shorten instantaneously, its power acted on pilot valve piston can reduce suddenly, and pilot valve piston moves to elongate rod direction under the effect of upstream pressure medium, and pilot valve is opened.Upstream medium enters final controlling element through strut buckling flip-over type pilot valve, promotes main valve and turns to improper valve position from normal valve position.
In the moment of elongate rod unstability, the medium in gas holder can drive main valve to start to open.In the moment that main valve is opened, the pressure of upstream medium can decline rapidly.The medium now stored in pressure-stored tank understands simultaneously upstream pipeline and strut buckling flip-over type pilot valve flow.The diameter of front end of the present utility model pressure inlet tube and the diameter of rear end pressure inlet tube will carry out the calculating of negotiability when choosing, to guarantee that crossing strut buckling flip-over type pilot valve from pressure-stored tank back warp flows to final controlling element and can ensure that main valve is opened completely.
Accompanying drawing explanation
Fig. 1 is the main structure figure of the strut buckling flip-over type automatic valve of the medium Direct driver that the utility model relates to;
Fig. 2 is the schematic diagram of the strut buckling flip-over type automatic valve of the medium Direct driver that the utility model relates to when normally working;
Fig. 3 is the schematic diagram after the strut buckling flip-over type automatic valve of the medium Direct driver that the utility model relates to triggers;
Embodiment
The strut buckling flip-over type automatic valve of the medium Direct driver that the utility model relates to forms primarily of final controlling element 2, support 4, main valve 5, front end pressure inlet tube 6, gas holder 9, rear end pressure inlet tube 10 and strut buckling flip-over type pilot valve 13.Wherein the critical piece of strut buckling flip-over type pilot valve 13 comprises pilot valve body 11, pilot valve piston 12, pilot valve valve gap 14, elongate rod 15, bar cage 16 and pole cap 17.As shown in Figure 1.
Front end pressure inlet tube 6 one end is connected with upstream line, and the other end is connected with gas holder 9; Rear end pressure inlet tube 10 one end is connected with gas holder 9, and the other end is connected with strut buckling flip-over type pilot valve 13.Through this Placement, the pressure medium of pressure main valve 4 upstream in the valve pocket of strut buckling flip-over type pilot valve 13 is identical, and namely the pressure that bears of pilot valve piston 12 is identical with the pressure of main valve 5 upstream.The thrust that medium acts on pilot valve piston 12 generation passes to elongate rod 15, makes elongate rod 15 bear axial compressive load.
When Decompression valves uses, embodiment of the present utility model is introduced below for the strut buckling flip-over type automatic valve of medium Direct driver.
In normal conditions, the pressure of main valve 5 upstream medium is less than setting pressure, and its thrust load acted in elongate rod 15 produced is less than the Buckling Load of elongate rod 15.Now elongate rod 15 keeps linear state, and the thrust of elongate rod 15 will make piston 12 and the pilot valve body seal element close contact of pilot valve, and make strut buckling flip-over type pilot valve be in sealing state.Now upstream medium cannot enter final controlling element 2 through strut buckling flip-over type pilot valve 13, and main valve 5 is in closed condition.As shown in Figure 2.
Under damage, the pressure of main valve 5 upstream medium exceedes setting pressure, and its thrust load acted in elongate rod 15 produced exceedes the ultimate load of elongate rod unstability.Now elongate rod 15 unstability bends, and its effective length can shorten instantaneously, and its power acted on pilot valve piston 12 can reduce suddenly, and pilot valve piston 12 moves to elongate rod 15 direction under the effect of upstream pressure medium, and pilot valve 13 is opened.Upstream medium enters final controlling element 2 through strut buckling flip-over type pilot valve 13, promotes main valve 5 and turns to open mode from closed condition, reach the object of medium of releasing.
In the moment of elongate rod 15 unstability, the medium in gas holder 9 can drive main valve 5 to start to open.In the moment that main valve 5 is opened, the pressure of its upstream medium can decline rapidly.Upstream pipeline and strut buckling flip-over type pilot valve 13 flow simultaneously in the medium meeting of now pressure-stored tank 9 li storage.The diameter of front end pressure inlet tube 6 and the diameter of rear end pressure inlet tube 10 will carry out the calculating of negotiability when choosing, to guarantee that crossing from pressure-stored tank 9 back warp the medium that strut buckling flip-over type pilot valve 13 flows to final controlling element 2 can ensure that main valve 5 is opened completely.
When automatically closing under main valve 5 of the present utility model is designed to superpressure operating mode, only need switch valve final controlling element 2 90-degree rotation.Automatically release when embodiment and switch valve 5 are designed to superpressure identical, 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 (4)
1. the strut buckling flip-over type automatic valve of a medium Direct driver, it is primarily of final controlling element (2), support (4), main valve (5), front end pressure inlet tube (6), gas holder (9), rear end pressure inlet tube (10) and strut buckling flip-over type pilot valve (13) composition, wherein pilot valve body (11), pilot valve piston (12), pilot valve valve gap (14), elongate rod (15), the strut buckling flip-over type pilot valve (13) that bar cage (16) and pole cap (17) form is the trigger mechanism of this automatic valve action, be primarily characterized in that: under superpressure operating mode, trigger the unlatching of pilot valve (13) by the strut buckling of elongate rod (15) and then trigger the action of main valve (5).
2. the strut buckling flip-over type automatic valve of medium Direct driver according to claim 1, pressure in the valve pocket of wherein strut buckling flip-over type pilot valve (13) is identical with the pressure medium of main valve (5) upstream, and namely the pressure that bears of pilot valve piston (12) is identical with the pressure of main valve (5) upstream.
3. the strut buckling flip-over type automatic valve of medium Direct driver according to claim 1, the thrust from medium that wherein pilot valve piston (12) bears passes to elongate rod (15), makes elongate rod (15) bear axial compressive load, in normal conditions, the thrust load acted in elongate rod (15) is less than the Buckling Load of elongate rod (15), elongate rod (15) keeps linear state, the thrust of elongate rod (15) will make the piston (12) of pilot valve and pilot valve body seal element close contact, and make strut buckling flip-over type pilot valve (13) be in sealing state, now upstream medium cannot enter final controlling element (2) through strut buckling flip-over type pilot valve (13), and main valve (5) is in closed condition, under damage, the pressure of main valve (5) upstream medium exceedes setting pressure, its thrust load acted in elongate rod (15) produced exceedes the Buckling Load of elongate rod (15), elongate rod (15) unstability bends, its effective length can shorten instantaneously, its power acted on pilot valve piston (12) can reduce suddenly, pilot valve piston (12) moves to elongate rod (15) direction under the effect of upstream pressure medium, pilot valve (13) is opened, upstream medium enters final controlling element (2) through strut buckling flip-over type pilot valve (13), promote main valve (5) action to improper valve position.
4. the strut buckling flip-over type automatic valve of medium Direct driver according to claim 1, wherein the diameter of front end pressure inlet tube (6) is slightly less than the diameter of rear end pressure inlet tube (10), to guarantee that crossing from gas holder (9) back warp the medium that strut buckling flip-over type pilot valve (13) flows to final controlling element (2) after pilot valve (13) is opened can ensure that main valve (5) is opened completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115159.8U CN204805687U (en) | 2015-02-17 | 2015-02-17 | Depression bar unstability of medium direct drive triggers type automatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115159.8U CN204805687U (en) | 2015-02-17 | 2015-02-17 | Depression bar unstability of medium direct drive triggers type automatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805687U true CN204805687U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520115159.8U Ceased CN204805687U (en) | 2015-02-17 | 2015-02-17 | Depression bar unstability of medium direct drive triggers type automatic valve |
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| Country | Link |
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| CN (1) | CN204805687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422965A (en) * | 2015-02-17 | 2016-03-23 | 江苏瑞朗博机械设备有限公司 | Direct medium acting type automatic valve triggered through unstability of compression bar |
-
2015
- 2015-02-17 CN CN201520115159.8U patent/CN204805687U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422965A (en) * | 2015-02-17 | 2016-03-23 | 江苏瑞朗博机械设备有限公司 | Direct medium acting type automatic valve triggered through unstability of compression bar |
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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: 20160219 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 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hanzhong (Nanjing) Technology Co.,Ltd. Assignor: JIANGSU RELIABLE MACHINERY EQUIPMENT Co.,Ltd. Contract record no.: X2020980005319 Denomination of utility model: An automatic valve driven directly by medium Granted publication date: 20151125 License type: Exclusive License Record date: 20200825 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201105 Address after: L3039, 3 / F, Chuangye building, No. 1009, Tianyuan East Road, Jiangning District, Nanjing, Jiangsu Province Patentee after: Hanzhong (Nanjing) Technology Co.,Ltd. Address before: 211316, No. 12 Tan Avenue, Gaochun Economic Development Zone, Nanjing, Jiangsu Patentee before: JIANGSU RELIABLE MACHINERY EQUIPMENT Co.,Ltd. |
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| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230804 Decision number of declaring invalidation: 563014 Granted publication date: 20151125 |