CN201475411U - Equilibrium ball valve of plug valve - Google Patents
Equilibrium ball valve of plug valve Download PDFInfo
- Publication number
- CN201475411U CN201475411U CN2009203064137U CN200920306413U CN201475411U CN 201475411 U CN201475411 U CN 201475411U CN 2009203064137 U CN2009203064137 U CN 2009203064137U CN 200920306413 U CN200920306413 U CN 200920306413U CN 201475411 U CN201475411 U CN 201475411U
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- ball valve
- valve
- equilibrium
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Abstract
The utility model discloses an equilibrium ball valve of a plug valve, comprising a valve body with a valve cavity and a ball valve installed in the valve cavity, wherein the ball valve is provided with a switch slot matched with a switch. The utility model is characterized in that the switch slot is provided with a through hole communicated with the inner passage of the ball valve. The equilibrium ball valve of the plug valve can always keep the same pressure between the passage of the ball valve and the outer surface of the ball valve by the through hole communicated with the inner passage of the ball valve under the complex conditions in the underground to play pressure of the equilibrium ball valve, ensuring the flexible opening and closing of the ball valve, and increasing the working life of the ball valve.
Description
Technical field
The utility model relates to the interior blowout prevention instrument that oil, Natural Gas Drilling Operation are used, particularly a kind of stopcock equilibrium ball valve.
Background technique
Stopcock is as one of blowout prevention instrument in the drilling tool of oil, Natural Gas Drilling Operation indispensability, when normal drillng operation because it is installed on the upper end of drill string.At present stopcock structure can be with reference to described in the Chinese utility model patent 200420005536.4, the ball valve of stopcock is general ball valve, this ball valve is in the process of using, because center-aisle and its outer spherical surface annular space of ball valve can not be worked hard in glove with, when band presses drill-in fluid when middle passage flows through, cause the imbalance of ball valve external and internal pressure, thereby cause the vibrations and the displacement of ball valve.Influence the start-stop performance of ball valve, made ball valve be subjected to clamping stagnation when serious and can not close, caused the generation of well site security incident.
The model utility content
The purpose of this utility model is: at the deficiencies in the prior art, provide a kind of stopcock equilibrium ball valve.
The technical solution of the utility model is:
A kind of stopcock equilibrium ball valve comprises the valve body with valve pocket and is installed in the interior ball valve of valve pocket, and a switch groove that cooperates with switch is arranged on ball valve, it is characterized in that: the through hole that a connection ball valve inner passage is arranged on the switch groove.
Supplementary technology scheme of the present utility model is as follows:
Preferably, described through hole is positioned at the centre position of ball valve switch groove.
The beneficial effects of the utility model are: can make ball valve under the complex conditions of down-hole by the through hole that is communicated with the ball valve inner passage, it is identical with pressure between the ball valve outer surface to remain the ball valve passage, play equilibrium ball valve pressure, guarantee ball valve keying flexibly, and improve the operating life of ball valve.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic representation of the utility model stopcock equilibrium ball valve specific embodiment.
Fig. 2 is the schematic representation of ball valve in the stopcock equilibrium ball valve shown in Figure 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Specific embodiment of the utility model, as depicted in figs. 1 and 2, a kind of stopcock equilibrium ball valve, similar with common stopcock, comprise valve body 3, snap ring 4, upper valve base 5, ball valve 7 and lower valve base 8 are installed in the valve pocket successively, on the valve body 3 of the upside of ball valve 7, knob 6 is installed with valve pocket, the switch groove 2 that cooperates with switch is arranged on ball valve 7, and difference is: the through hole 1 that a connection ball valve inner passage is arranged on switch groove 2.
Preferably, described through hole 1 is positioned at the centre position of switch groove 2 on the ball valve 7.
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. a stopcock equilibrium ball valve comprises the valve body with valve pocket and is installed in the interior ball valve of valve pocket, and a switch groove that cooperates with switch is arranged on ball valve, it is characterized in that: the through hole that a connection ball valve inner passage is arranged on the switch groove.
2. stopcock equilibrium ball valve according to claim 1 is characterized in that, described through hole is positioned at the centre position of ball valve switch groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203064137U CN201475411U (en) | 2009-07-17 | 2009-07-17 | Equilibrium ball valve of plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203064137U CN201475411U (en) | 2009-07-17 | 2009-07-17 | Equilibrium ball valve of plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475411U true CN201475411U (en) | 2010-05-19 |
Family
ID=42411659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203064137U Expired - Lifetime CN201475411U (en) | 2009-07-17 | 2009-07-17 | Equilibrium ball valve of plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475411U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982160A (en) * | 2014-05-27 | 2014-08-13 | 西南石油大学 | Novel pressure balancing type plug valve |
| CN105003682A (en) * | 2015-07-30 | 2015-10-28 | 盐城市大冈石油工具厂有限责任公司 | Pressure-regulating self-opened plug valve |
| CN106594311A (en) * | 2015-10-16 | 2017-04-26 | 贺增华 | Fixed ball valve |
| CN109488783A (en) * | 2018-12-27 | 2019-03-19 | 成都海猛石油机械有限公司 | A kind of switch cock valve with pressure and application method |
| CN110230710A (en) * | 2019-05-27 | 2019-09-13 | 江苏神通阀门股份有限公司 | A kind of assembly method of the side-mounted ball valve of entirety |
-
2009
- 2009-07-17 CN CN2009203064137U patent/CN201475411U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982160A (en) * | 2014-05-27 | 2014-08-13 | 西南石油大学 | Novel pressure balancing type plug valve |
| CN105003682A (en) * | 2015-07-30 | 2015-10-28 | 盐城市大冈石油工具厂有限责任公司 | Pressure-regulating self-opened plug valve |
| CN105003682B (en) * | 2015-07-30 | 2017-06-30 | 盐城市大冈石油工具厂有限责任公司 | Pressure regulation self-opening type plug valve |
| CN106594311A (en) * | 2015-10-16 | 2017-04-26 | 贺增华 | Fixed ball valve |
| CN109488783A (en) * | 2018-12-27 | 2019-03-19 | 成都海猛石油机械有限公司 | A kind of switch cock valve with pressure and application method |
| CN110230710A (en) * | 2019-05-27 | 2019-09-13 | 江苏神通阀门股份有限公司 | A kind of assembly method of the side-mounted ball valve of entirety |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN HUAYU PETROLEUM DRILLING AND PRODUCTION EQ Free format text: FORMER NAME: LUZHOU CHUANYOU DRILL + PRODUCTION EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 646006 No. 78 North madder Road, Sichuan, Luzhou Patentee after: SICHUAN HWAYOO PETROLEUM DRILLING & PRODUCTION CO., LTD. Address before: 646006 No. 78 North madder Road, Sichuan, Luzhou Patentee before: Luzhou Chuanyou Driling Equipment Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |