CN101984277A - Automatic compensation device for ball valve seal - Google Patents
Automatic compensation device for ball valve seal Download PDFInfo
- Publication number
- CN101984277A CN101984277A CN 201010568742 CN201010568742A CN101984277A CN 101984277 A CN101984277 A CN 101984277A CN 201010568742 CN201010568742 CN 201010568742 CN 201010568742 A CN201010568742 A CN 201010568742A CN 101984277 A CN101984277 A CN 101984277A
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- CN
- China
- Prior art keywords
- valve
- ball valve
- butterfly spring
- seal ring
- compensation device
- 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.)
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Abstract
The invention relates to an automatic compensation device for ball valve seal. The automatic compensation device comprises a valve body with a circulation valve port and a spherical valve core mounted on the valve body and provided with a connected channel, and is characterized in that an annular ladder groove for mounting a butterfly spring and a seal ring is formed at the inner side end, which is matched with the sphercial valve core, of the valve port. The invention provides a device capable of effectively guaranteeing the sealing performance of the ball valve.
Description
Technical field
The present invention relates to a kind of ball valve sealing automatic compensator, be applicable to various types of ball valves.
Background technique
Ball valve is mainly used in the medium that blocks or connect in the pipeline, also can be used for the adjusting and the control of fluid, develop rapidly along with science and technology, updating of production technology and product structure, the use of ball valve is constantly risen year by year, in China, ball valve is applied in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, iron and steel widely, occupies critical role in national economy.
The compact structure of ball valve own, sealing is reliable, and is simple in structure, easy to maintenance, sealing surface and the sphere closed state of being everlasting is difficult for by the medium erosion, easy operating and maintenance are applicable to general work media such as water, solvent, acid and rock gas, but also are applicable to the medium that operating conditions is abominable.
When using ball valve, guarantee all the time that it has good sealing effect is vital, in case sealing effect is poor, will influence effect.
Summary of the invention
The object of the present invention is to provide a kind of explosion-proof phone, the invention provides the device that can effectively guarantee the ball valve sealing performance.
The invention is characterized in: a kind of ball valve sealing automatic compensator, comprise valve body with circulation valve port and the spherical valve core that is installed on valve body and has communication passage, it is characterized in that: the medial extremity that described valve port cooperates with spherical valve core offers the caged ladder groove that is used to install butterfly spring and seal ring.
Advantage of the present invention: structural design is simple and have a very strong practicability, I﹠M is convenient, can guarantee the sealing effect of seal ring and spherical valve core by regulating the amount of deformation of butterfly spring automatically, can not produce the phenomenon of leakage, the working life of having improved ball valve.
Description of drawings
Fig. 1 is the organigram of the embodiment of the invention.
Embodiment
With reference to figure 1, a kind of ball valve sealing automatic compensator, comprise valve body 2 and be installed on valve body 2 and have the spherical valve core 3 of communication passage 3-1 that it is characterized in that: the medial extremity that described valve port 1 cooperates with spherical valve core 3 offers the caged ladder groove 6 that is used to install butterfly spring 4 and seal ring 5 with circulation valve port 1.
In the preferred embodiments example of the present invention, described valve body is the two-position four-way ball valve, and described spherical valve core 3 is arranged with and turns shape communication passage 3-1 to realize the connection of adjacent valve port 1.
For butterfly spring better is installed in the present invention, be provided with butterfly spring load bearing seat 7 between described butterfly spring 5 and the seal ring 6.
Working principle of the present invention is: when valve port pressurized or medium temperature rising, seal ring expands the distortion back toward pusher, this is that butterfly spring produces compression under its thrust, can be by its amount of deformation of butterfly spring adjusting voluntarily, compensated the seal ring phenomenon that moment of torsion strengthens along with the variation expansion of temperature and pressure, guaranteed that seal ring can not strengthen because of cooperating with spherical valve core of temperature variation tension producing moment of torsion, when temperature or pressure decline, seal ring shrinks, to be butterfly spring produce distortion under the effect of self elastic force for this, can not produce because of variation in pressure makes seal ring to cooperate the appearance interval to produce leakage phenomenon with spherical valve core.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. ball valve sealing automatic compensator, comprise valve body with circulation valve port and the spherical valve core that is installed on valve body and has communication passage, it is characterized in that: the medial extremity that described valve port cooperates with spherical valve core offers the caged ladder groove that is used to install butterfly spring and seal ring.
2. ball valve sealing automatic compensator according to claim 1 is characterized in that: described valve body is the two-position four-way ball valve, and described spherical valve core is arranged with and turns the shape communication passage to realize the connection of adjacent valve port.
3. ball valve sealing automatic compensator according to claim 1 is characterized in that: be provided with the butterfly spring load bearing seat between described butterfly spring and the seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568742 CN101984277A (en) | 2010-12-02 | 2010-12-02 | Automatic compensation device for ball valve seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568742 CN101984277A (en) | 2010-12-02 | 2010-12-02 | Automatic compensation device for ball valve seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101984277A true CN101984277A (en) | 2011-03-09 |
Family
ID=43641448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010568742 Pending CN101984277A (en) | 2010-12-02 | 2010-12-02 | Automatic compensation device for ball valve seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101984277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482272A (en) * | 2014-12-30 | 2015-04-01 | 高克伟 | Electric commutator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2065276A (en) * | 1979-12-12 | 1981-06-24 | Whitey Co | Ball valve |
| JPS60263780A (en) * | 1984-06-08 | 1985-12-27 | Nippon Boorubarubu Kk | Top entry ball valve |
| JPS62171571A (en) * | 1986-01-24 | 1987-07-28 | Hitachi Ltd | Sealing method in valve seat of three-way ball valve |
| US4792118A (en) * | 1986-02-12 | 1988-12-20 | Whitey Co. | Low dead space ring |
| CN2069513U (en) * | 1990-06-20 | 1991-01-16 | 陈志清 | Leakproof spherical valve |
| DE4143306A1 (en) * | 1991-03-27 | 1992-10-01 | Draxler Ernst Dipl Ing Fh | Seal for ball valve - has spring-loaded backing ring which allows adjustment to suit working conditions |
| CN2219404Y (en) * | 1995-04-08 | 1996-02-07 | 天津京美电子工程有限公司 | Four-way ball valve for metallurgical blast furnace |
| CN201925510U (en) * | 2010-12-02 | 2011-08-10 | 福建高中压阀门科技有限公司 | Automatic sealing compensating device for ball valve |
-
2010
- 2010-12-02 CN CN 201010568742 patent/CN101984277A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2065276A (en) * | 1979-12-12 | 1981-06-24 | Whitey Co | Ball valve |
| JPS60263780A (en) * | 1984-06-08 | 1985-12-27 | Nippon Boorubarubu Kk | Top entry ball valve |
| JPS62171571A (en) * | 1986-01-24 | 1987-07-28 | Hitachi Ltd | Sealing method in valve seat of three-way ball valve |
| US4792118A (en) * | 1986-02-12 | 1988-12-20 | Whitey Co. | Low dead space ring |
| CN2069513U (en) * | 1990-06-20 | 1991-01-16 | 陈志清 | Leakproof spherical valve |
| DE4143306A1 (en) * | 1991-03-27 | 1992-10-01 | Draxler Ernst Dipl Ing Fh | Seal for ball valve - has spring-loaded backing ring which allows adjustment to suit working conditions |
| CN2219404Y (en) * | 1995-04-08 | 1996-02-07 | 天津京美电子工程有限公司 | Four-way ball valve for metallurgical blast furnace |
| CN201925510U (en) * | 2010-12-02 | 2011-08-10 | 福建高中压阀门科技有限公司 | Automatic sealing compensating device for ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482272A (en) * | 2014-12-30 | 2015-04-01 | 高克伟 | Electric commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110309 |