CN2122283U - Air pressure valve - Google Patents
Air pressure valve Download PDFInfo
- Publication number
- CN2122283U CN2122283U CN 92209344 CN92209344U CN2122283U CN 2122283 U CN2122283 U CN 2122283U CN 92209344 CN92209344 CN 92209344 CN 92209344 U CN92209344 U CN 92209344U CN 2122283 U CN2122283 U CN 2122283U
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- CN
- China
- Prior art keywords
- cylinder
- piston
- valve
- baffle plate
- block piece
- 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.)
- Granted
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a pneumatic valve which is served as a fireproof cutting device for an oil and gas transporting pipe passage of an oil and gas well in an oilfield. The utility model is mainly composed of a cylinder, a piston, a spring, a blocking piece and an engaging and disengaging bent lever. An oil and gas pipe passage passes through the middle part of the cylinder so that the cylinder is divided into a left and a right parts, the blocking piece which is driven by the piston and is provided with a spherical surface is mainly arranged in the right cylinder playing a role of closing the valve, a valve opening push rod which is driven by the engaging and disengaging bent lever and the piston is mainly arranged in the left cylinder playing a role of opening the valve, and the valve is opened and closed through pushing the piston by high-pressure gas which is served as dynamic force. The utility model with simple structure and artful design can be connected with an automatic control system.
Description
The utility model relates to a kind of air pressure valve, and it is used for the fire prevention of the oil transportation air delivering pipeline of oil and gas wells in oil fields and cuts off.
The fire prevention means of oil and gas wells in oil fields have many kinds, but their something in common is at first the oil transportation air delivering pipeline to be cut off, and generally is to adopt the spiral valve to finish this task, and screw valve needs manual operation, so not too safe, and the mounting point of valve also is subjected to certain limitation.
The purpose of this utility model is to provide a kind of air pressure valve, can not need manual operation and finishes the task of switch valve, and can link to each other with automatic control system.
Concrete solution of the present utility model is: air pressure valve of the present utility model mainly is made up of cylinder, piston, spring, block piece and clutch curved bar.The oil gas pipeline passes from the cylinder middle part, and cylinder is divided into left cylinder and right cylinder two-part, and right cylinder plays throttle down, and left cylinder works to open valve.Mainly be the block piece that piston drives in the right cylinder with spherical surface, when high pressure air when right cylinder air inlet enters, promote piston motion, thereby make block piece move to the middle part, block pipeline.Left side cylinder mainly is that clutch curved bar and piston drive one opens valve follower, the clutch curved bar comprises vertical bar and horizon bar, the upper end jag of vertical bar, open the valve follower frame in the above, the end of the horizon bar of clutch curved bar is a hook, corresponding with the hook groove of the block piece below with spherical surface, opening on the valve follower with the fork of the clutch curved bar position that contacts has the same projection of similar ring.When middle part motion was blocked pipeline at last, the hook of clutch curved bar entered in the hook groove on the block piece, and block piece is hooked, and it can not be playbacked, and keeps blocking the state of pipeline, i.e. valve closing at block piece.When opening valve, the piston drive is opened valve follower and is moved to the middle part, opens thrust of fork that the ring shape projection on the valve follower is given the vertical bar of clutch curved bar, the clutch curved bar turns forward, and hook is deviate from from the hook groove, opens valve follower simultaneously and continues to move to the middle part, block piece is pushed open, opened valve.All be with spring on the piston rod of two cylinders, play the effect of auxiliary reset.
Left and right sides cylinder two-port is a suction port, and the air pressure that pressurized gas produce promotes piston motion.High pressure air can produce by dual mode: a kind of mode is to fixedly install an airtight water tank at the mouth of pipe place that may burn, be filled with water in the water tank, right cylinder air inlet and water tank are communicated with by tracheae, when oil gas well casing mouth was on fire, the heat that burning is produced was boiled with the water in the water tank, and water vapour enters suction port by tracheae, vapor tension promotes piston motion, drive block piece pipeline is blocked, cut off oil-gas-source, burning is stopped.Also having a kind of mode is with special system gas system, and system gas system is communicated with the suction port of left and right sides cylinder respectively by tracheae, and when the oil gas well was on fire, system gas system delivered to the suction port of right cylinder with high pressure air, and the promotion piston makes block piece block pipeline.When needs were driven valve, system gas system promoted piston with the suction port of pneumatic transmission to left cylinder, and drive is opened valve follower block piece is pushed open, opens valve.
It also can be that left cylinder plays the pass valve action that the function of above-mentioned left and right sides cylinder is divided, and right cylinder works out valve action.Be the fire prevention stand-by provision because this usefulness is novel, thus stainless steel or aluminum alloy manufacturing used, to increase the service life.
The utility model is simple in structure, designs ingeniously, and without manual operation, safe and reliable during use, it is connected the purpose that also can reach automatic control with automatic control system.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 air pressure valve overall structure schematic representation
Wherein: 1. oil gas pipeline 2. block pieces 3. piston rods 4. right cylinders
5. piston 6. suction ports 7. pressure springs 8. baffle plates
9. hook groove 10. baffle plates 11. left cylinder 12. pressure springs
13. piston 14. suction ports 15. ring shapes projection 16. vertical bars
17. fixed support 18. horizon bars 19. hooks 20. outer covers
21. open valve follower
As shown in the figure, air pressure valve of the present utility model comprises cylinder, piston, spring, block piece and clutch curved bar, oil gas pipeline 1 passes from the cylinder middle part, cylinder is divided into left and right sides two-part, left and right sides cylinder 11 and 4 end are suction port 14 and 6, piston 5 in the right cylinder 4 is connected with the block piece 2 that spherical surface is arranged by piston rod 3, block piece 2 bottoms have hook groove 9, right cylinder internal fixation is provided with a baffle plate 8, one hole is arranged on the baffle plate, piston rod 3 is with pressure spring 7 by this hole to-and-fro motion on the piston rod 3 that baffle plate 8 and piston are 5; Cylinder 11 inner carriers 13 in a left side drive one and open valve follower 21, left side cylinder 11 internal fixation are provided with a baffle plate 10, one hole is arranged on it, open valve follower 21 by this hole to-and-fro motion, opening of 13 in baffle plate 10 and piston is with pressure spring 12 on the valve follower 21, baffle plate 10 right cylinder walls are provided with fixed support 17, the clutch curved bar comprises vertical bar 16 and horizon bar 18, the break of clutch curved bar links to each other with fixed support 17 and can rotate for axle by fixed support 17, the end of the vertical bar 16 of clutch curved bar has a fork, opening valve follower 21 has a ring shape projection 15 herein, and the end of the horizon bar 18 of clutch curved bar is a hook 19, and is corresponding with the hook groove 9 of block piece 2 top and the bottom.Whole air pressure valve is with an outer cover 20 outward to play protective action.
Claims (1)
1, a kind of air pressure valve, it comprises cylinder, piston, spring, block piece and clutch curved bar, oil gas pipeline 1 passes from the cylinder middle part, cylinder is divided into left and right sides two-part, left and right sides cylinder 11 and 4 end are suction port 14 and 6, it is characterized in that: the piston 5 in the right cylinder 4 is connected with the block piece 2 that spherical surface is arranged by piston rod 3, block piece 2 bottoms have hook groove 9, right cylinder internal fixation is provided with a baffle plate 8, one hole is arranged on the baffle plate, piston rod 3 is with pressure spring 7 by this hole to-and-fro motion on the piston rod 3 that baffle plate 8 and piston are 5; Cylinder 11 inner carriers 13 in a left side drive one and open valve follower 21, left side cylinder 11 internal fixation are provided with a baffle plate 10, one hole is arranged on it, open valve follower 21 by this hole to-and-fro motion, opening of 13 in baffle plate 10 and piston is with pressure spring 12 on the valve follower 21, baffle plate 10 right cylinder walls are provided with fixed support 17, the clutch curved bar comprises vertical bar 16 and horizon bar 18, the break of clutch curved bar links to each other with fixed support 17 and can rotate for axle by fixed support 17, the end of the vertical bar 16 of clutch curved bar has a fork, opening valve follower 21 has a ring shape projection 15 herein, and the end of the horizon bar 18 of clutch curved bar is a hook 19, and is corresponding with the hook groove 9 of block piece 2 top and the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209344 CN2122283U (en) | 1992-05-14 | 1992-05-14 | Air pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209344 CN2122283U (en) | 1992-05-14 | 1992-05-14 | Air pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2122283U true CN2122283U (en) | 1992-11-18 |
Family
ID=4954648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92209344 Granted CN2122283U (en) | 1992-05-14 | 1992-05-14 | Air pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2122283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052859A (en) * | 2018-09-12 | 2018-12-21 | 朱旭东 | Based on can the water process of assembling module quickly assemble equipment |
-
1992
- 1992-05-14 CN CN 92209344 patent/CN2122283U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052859A (en) * | 2018-09-12 | 2018-12-21 | 朱旭东 | Based on can the water process of assembling module quickly assemble equipment |
| CN109052859B (en) * | 2018-09-12 | 2021-06-25 | 朱旭东 | Water treatment fast assembly equipment based on module can assemble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |