CN205715944U - The choke valve that surges that can stably open and close - Google Patents
The choke valve that surges that can stably open and close Download PDFInfo
- Publication number
- CN205715944U CN205715944U CN201620342280.9U CN201620342280U CN205715944U CN 205715944 U CN205715944 U CN 205715944U CN 201620342280 U CN201620342280 U CN 201620342280U CN 205715944 U CN205715944 U CN 205715944U
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- valve
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- cylinder body
- hydraulic cavities
- valve rod
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Abstract
This utility model relates to a kind of choke valve that surges that can stably open and close, including cylinder cap, cylinder body, valve rod and valve body；Cylinder body includes upper cylinder body and lower cylinder body, forms hydraulic cavities in upper cylinder body, and valve bonnet seal is arranged in hydraulic cavities, and hydraulic cavities inner valve stem is fixedly installed piston；Epicoele is formed between piston upper surface and valve gap, cavity of resorption is formed between described piston lower surface and hydraulic cavities diapire, the first import it is provided with on valve gap, the first oil circuit joint it is provided with in first import, 2 the second imports it are provided with on the diapire of hydraulic cavities, upper cylinder body diapire level offers main aperture, and 2 the second imports connect with main aperture.Being provided with 2 the second imports on the diapire of hydraulic cavities, moment down can inject more hydraulic oil by intracavity, makes valve rod obtain bigger lifting force；Secondly, 2 the second imports the defect that traditional single import can be avoided to cause piston unbalance stress is set.
Description
Technical field
This utility model relates to a kind of choke valve that surges that can stably open and close.
Background technology
Surge choke valve, and moved up and down the keying realized choke valve by hydraulic control valve rod, in the past injecting hydraulic oil when, driving piston up-down, piston upper and lower end face is plane, and inlet and outlet setting up and down is respectively one, work when, hydraulic oil can only enter hydraulic cavities by single hole and promote, and such defect is, piston unbalance stress, flexible, secondly, hydraulic oil requires time for slowly entering hydraulic cavities, the most delayed.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, it is provided that a kind of choke valve that surges that can stably open and close.
This utility model solves its technical problem and be the technical scheme is that a kind of choke valve that surges that can stably open and close, including cylinder cap, cylinder body, valve rod and valve body；Described cylinder body includes upper cylinder body and lower cylinder body, hydraulic cavities is formed in described upper cylinder body, valve bonnet seal is arranged in hydraulic cavities, bar chamber is formed in described lower cylinder body, described valve rod is arranged on bar intracavity through valve gap, hydraulic cavities movement, it is fixedly installed piston in described hydraulic cavities inner valve stem, forms slipper seal between the sidewall of described piston with hydraulic cavities medial wall and coordinate；
Epicoele is formed between described piston upper surface and valve gap, cavity of resorption is formed between described piston lower surface and hydraulic cavities diapire, the first import it is provided with on described valve gap, the first oil circuit joint it is provided with in described first import, described first oil circuit joint connects with epicoele, and the diapire of described hydraulic cavities is provided with 2 the second imports, and described upper cylinder body diapire level offers main aperture, described main aperture outer end is provided with the second oil circuit joint, and 2 the second imports connect with main aperture.
Further, the lower surface of described piston forms a circle first step annular groove, and 2 the second described imports are positioned at the lower section of first step annular groove.
Further, the upper surface of described piston forms a circle second step annular groove, and described first import is positioned at the top of second step annular groove.
Further, the sidewall of described piston is formed circle first closure gasket groove, in described first closure gasket groove, is provided with the first sealing ring.
Further, attachment structure between described piston and valve rod is: form installation step on described valve rod, described piston is arranged on the installation step of valve rod, arranging locking nut on the valve rod of described piston upper end, described locking nut coordinates with threaded stem and is pressed on the installation step of valve rod by piston.
The beneficial effects of the utility model are: be provided with 2 the second imports on the diapire of hydraulic cavities, and moment down can inject more hydraulic oil by intracavity, makes valve rod obtain bigger lifting force；Secondly, 2 the second imports the defect that traditional single import can be avoided to cause piston unbalance stress is set.
The setting of first step annular groove, the when that piston can being made to be in bottom hydraulic cavities, first step annular groove remains to store a part of hydraulic oil, so that piston lower surface increases the contact area with hydraulic oil, when main aperture starts to inject hydraulic oil when, owing to the area of piston lower surface Fluid Contacting force feed is big, such that it is able to make piston just can obtain the most sufficient, a stable hydraulic thrust starting mobile when.
In like manner, the setting of second step annular groove, the when that piston can being made to be in hydraulic cavities top, second step annular groove remains to store a part of hydraulic oil, so that piston upper surface increases the contact area with hydraulic oil, when the first import starts to inject hydraulic oil when, owing to the area of piston upper surface Fluid Contacting force feed is big, such that it is able to make piston just can obtain the most sufficient, a stable hydraulic thrust starting to move down when.
The setting of the first sealing ring, improves the sealing between piston and hydraulic cavities inwall.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further illustrated.
Fig. 1 is the schematic diagram of this utility model choke valve；
Fig. 2 is the structure chart coordinated between valve gap, cylinder body, valve rod and piston；
Wherein, 1, valve gap, 2, upper cylinder body, 3, valve rod, 4, piston, 5, first step annular groove, 6, second step annular groove, the 7, first oil circuit joint, the 8, second oil circuit joint, the 9, second import, 10, main aperture, 11, valve body.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is further described.These accompanying drawings are the schematic diagram of simplification and basic structure of the present utility model are described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
As shown in Fig. 1 Fig. 2, a kind of choke valve that surges that can stably open and close, including cylinder cap, cylinder body, valve rod 3 and valve body 11；Cylinder body includes upper cylinder body 2 and lower cylinder body, hydraulic cavities is formed in upper cylinder body 2, valve gap 1 is sealingly disposed in hydraulic cavities, bar chamber is formed in lower cylinder body, valve rod 3 is arranged on bar intracavity through valve gap 1, hydraulic cavities movement, it is fixedly installed piston 4 in hydraulic cavities inner valve stem 3, forms slipper seal between the sidewall of piston 4 with hydraulic cavities medial wall and coordinate.
In the present embodiment, attachment structure between piston 4 and valve rod 3 is: form installation step on valve rod 3, piston 4 is arranged on the installation step of valve rod 3, the valve rod 3 of piston 4 upper end arranges locking nut, locking nut and valve rod 3 threaded engagement and is pressed on the installation step of valve rod 3 by piston 4.
Form circle first closure gasket groove on the sidewall of piston 4, in the first closure gasket groove, be provided with the first sealing ring.
Epicoele is formed between piston 4 upper surface and valve gap 1, cavity of resorption is formed between piston 4 lower surface and hydraulic cavities diapire, the first import it is provided with on valve gap 1, the first oil circuit joint 7 it is provided with in first import, first oil circuit joint 7 connects with epicoele, and the diapire of hydraulic cavities is provided with 2 the second imports 9, and upper cylinder body 2 diapire level offers main aperture 10, main aperture 10 outer end is provided with 8,2 the second imports 9 of the second oil circuit joint and connects with main aperture 10.
The lower surface of piston 4 forms circle 5,2 second imports 9 of first step annular groove and is positioned at the lower section of first step annular groove 5.The upper surface of piston 4 forms a circle second step annular groove 6, and the first import is positioned at the top of second step annular groove 6.
During work, epicoele injects hydraulic oil through the first oil circuit joint 7, drives piston 4 to move downward, and cavity of resorption injects hydraulic oil through the second oil circuit joint 8, drives piston 4 to move upward, and piston 4 motion band ovable valve stem 3 moves up and down, it is achieved the keying of whole choke valve.
Storing some hydraulic oil in first step cannelure, increase the contact area of piston 4 upper surface and hydraulic oil, when the first oil circuit joint 7 is passed through hydraulic oil when, the area that hydraulic oil contacts with piston 4 upper surface is relatively big, piston 4 can be made to move more stable；In like manner, when piston 4 moves to hydraulic cavities bottom when, second step cannelure can accumulate some hydraulic oil, when the second oil circuit joint 8 injects hydraulic oil through main aperture 10 when, piston 4 lower surface is big with hydraulic oil contact area, the when of mobile more stable, be passed through hydraulic oil especially by two the second imports 9, start piston 4 stress bigger, valve rod 3 moves, and strength is sufficient, stable.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine its technical scope according to right.
Claims (5)
1. the choke valve that surges that can stably open and close, is characterized in that, including cylinder cap, cylinder body, valve rod (3) and valve body (11)；Described cylinder body includes upper cylinder body (2) and lower cylinder body, hydraulic cavities is formed in described upper cylinder body (2), valve gap (1) is sealingly disposed in hydraulic cavities, bar chamber is formed in described lower cylinder body, described valve rod (3) is arranged on bar intracavity through valve gap (1), hydraulic cavities movement, it is fixedly installed piston (4) on described hydraulic cavities inner valve stem (3), forms slipper seal between the sidewall of described piston (4) and hydraulic cavities medial wall and coordinate；
Epicoele is formed between described piston (4) upper surface and valve gap (1), cavity of resorption is formed between described piston (4) lower surface and hydraulic cavities diapire, described valve gap is provided with the first import on (1), the first oil circuit joint (7) it is provided with in described first import, described first oil circuit joint (7) connects with epicoele, 2 the second imports (9) it are provided with on the diapire of described hydraulic cavities, described upper cylinder body (2) diapire level offers main aperture (10), described main aperture (10) outer end is provided with the second oil circuit joint (8), 2 the second imports (9) connect with main aperture (10).
The choke valve that surges that can stably open and close the most according to claim 1, it is characterized in that, the lower surface of described piston (4) forms circle first step annular groove (5), and 2 described the second imports (9) are positioned at the lower section of first step annular groove (5).
The choke valve that surges that can stably open and close the most according to claim 1, it is characterized in that, the upper surface of described piston (4) forms circle second step annular groove (6), and described first import is positioned at the top of second step annular groove (6).
The choke valve that surges that can stably open and close the most according to claim 1, is characterized in that, the sidewall of described piston (4) is formed circle first closure gasket groove, is provided with the first sealing ring in described first closure gasket groove.
The choke valve that surges that can stably open and close the most according to claim 1, it is characterized in that, attachment structure between described piston (4) and valve rod (3) is: described valve rod forms installation step on (3), described piston (4) is arranged on the installation step of valve rod (3), locking nut, described locking nut and valve rod (3) threaded engagement are set on the valve rod (3) of described piston (4) upper end and piston (4) is pressed on the installation step of valve rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342280.9U CN205715944U (en) | 2016-04-22 | 2016-04-22 | The choke valve that surges that can stably open and close |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342280.9U CN205715944U (en) | 2016-04-22 | 2016-04-22 | The choke valve that surges that can stably open and close |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715944U true CN205715944U (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620342280.9U Expired - Fee Related CN205715944U (en) | 2016-04-22 | 2016-04-22 | The choke valve that surges that can stably open and close |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443518A (en) * | 2018-04-04 | 2018-08-24 | 盐城雄威石化通用机械设备有限公司 | A kind of high-pressure well mouth surges throttle valve |
-
2016
- 2016-04-22 CN CN201620342280.9U patent/CN205715944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443518A (en) * | 2018-04-04 | 2018-08-24 | 盐城雄威石化通用机械设备有限公司 | A kind of high-pressure well mouth surges throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |