CN102878320A - Ball valve with a valve seat having functions of auto-cleaning and dust proofing - Google Patents
Ball valve with a valve seat having functions of auto-cleaning and dust proofing Download PDFInfo
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- CN102878320A CN102878320A CN2012103728702A CN201210372870A CN102878320A CN 102878320 A CN102878320 A CN 102878320A CN 2012103728702 A CN2012103728702 A CN 2012103728702A CN 201210372870 A CN201210372870 A CN 201210372870A CN 102878320 A CN102878320 A CN 102878320A
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- piston ring
- valve
- valve seat
- piston
- cleaning
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Abstract
The invention discloses a ball valve with a valve seat having functions of auto-cleaning and dust proofing. The ball valve comprises a valve body, a spherical spool and the valve seat. The valve seat is in a piston ring structure. A piston ring is movably disposed in a piston cavity of the valve body. The piston ring is provided with a spring chamber. A spring is disposed in the spring chamber. A seal face of the piston ring is abutted to a spherical face of the spherical spool under the action of the spring. The ball valve is characterized in that a seal ring is disposed between one end, with the seal face, of the piston ring and the piston cavity for sealing. An elastic conical face is disposed between one end, without the seal face, of the piston ring and the piston cavity for sealing. Small grooves are arranged on the inner edge and the outer edge of the seal face of the piston ring. The valve seat has the functions of auto-cleaning and dust proofing, and has that advantages that long-term failure-free operation is guaranteed, reliability is improved, service life is prolonged, maintenance and overhauling frequency is reduced, and the valve seat is especially suitable for harsh work conditions of high pressure and work conditions in the presence of media such as impurities and particles.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to the ball valve of a kind of tool self-cleaning and dust reduction capability valve seat.
Background technique
In the prior art, ball valve is the applicable pure liquid of high-purity or gas medium only, and application range of products is limited.If containing at high pressure under the harsh operating mode of the media such as impurity and particle, uses above-mentioned ball valve, situation about occurring has: 1. the impurity in the medium or particle etc. can enter and cause spring to lose efficacy in the spring housing of valve seat maybe can't to move, thereby cause sealing surface of seat can not lean the sphere of spool and make valve leak; 2. the impurity in the medium or particle etc. can be gathered in the end of valve seat piston ring, after valve uses a period of time, will occur because aggregation former thereby piston ring can't normally move or mobile difficult, thereby occur stuck phenomenon when making valve operation, valve operation is malfunctioning; 3. aggregation is easily piled up at the outer edge position of sealing surface of seat, can not self-cleaning, and cause valve seal to damage too early, shorten valve working life.
Summary of the invention
In view of the problem that present known technology exists, the technical problem to be solved in the present invention is to be to provide a kind of valve seat to have the ball valve of self-cleaning and dust reduction capability.
The present invention implements by the following technical programs:
The ball valve of tool self-cleaning and dust reduction capability valve seat, comprise valve body, spherical valve core and valve seat, valve seat is piston ring structure, piston ring is actively installed in the piston cavity of valve body, and piston ring is provided with spring housing, establishes spring in the spring housing, under spring action, the sealing surface of piston ring leans the sphere of spherical valve core, it is characterized in that: piston ring is established and is provided with the seal ring sealing between an end of sealing surface and the piston cavity, and piston ring is not established between an end of sealing surface and the piston cavity and is provided with the elasticity conical surface seal.
After adopting technique scheme; the end that the valve seat piston ring is established sealing surface has seal ring to stop impurity or particle in the medium to enter spring housing; the flexible conical surface seal of an end that the valve seat piston ring is not established sealing surface stop the end that impurity in the medium or particle enter piston ring (purpose that the elasticity conical surface seal is set be not only guaranteed to seal but also guarantee piston ring suitable move axially needs; because piston ring unavoidably will produce moving axially of trace in the operated valve process; move axially distance and be no more than 0.5mm); valve seat has dust reduction capability; guarantee the long-term failure-free operation of valve; increase reliability and the working life of valve; greatly reduce and safeguard and the shutdown repair rate, be particularly useful for the harsh operating mode that high pressure contains the media such as impurity and particle.
As preferably, piston ring is not established the end face of sealing surface and is established male cone (strobilus masculinus), the piston cavity corresponding with male cone (strobilus masculinus) established inner conical surface, inner conical surface only stays the latter end corresponding with male cone (strobilus masculinus) vertex of a cone position, the bottom of inner conical surface latter end hollows out into cantilever, and the inner conical surface latter end forms described elasticity conical surface seal with the contact of the male cone (strobilus masculinus) vertex of a cone.Because the bottom of inner conical surface latter end hollows out, so the inner conical surface latter end can have certain elastic deformability, the needs of elasticity conical surface seal have so just been satisfied.
The outer edge of described piston ring packing face is equipped with little groove.The design of little groove has improved the aggregation at sealing surface outer edge position and has piled up situation, make the aggregation at sealing surface outer edge position be difficult for piling up, be stacked into to a certain degree and naturally come off, sealing surface is easier wipes aggregation off, has self-cleaning function, guarantee that valve seal is reliable lastingly, improve valve working life.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is structural representation of the present invention,
Fig. 2 is the A section enlarged view among Fig. 1.
Embodiment
Describe details and the working principle of the specific embodiment of the invention in detail below in conjunction with accompanying drawing:
As shown in the figure, the ball valve of tool self-cleaning of the present invention and dust reduction capability valve seat, comprise valve body 1, spherical valve core 3 and valve seat 2, valve seat 2 is piston ring structure, piston ring is actively installed in the piston cavity of valve body 1, piston ring is provided with spring housing 6, establish spring 7 in the spring housing 6, under spring 7 effects, the sealing surface 10 of piston ring leans the sphere of spherical valve core 3, piston ring is established and is provided with seal ring 8 sealings between an end of sealing surface and the piston cavity, piston ring is not established between an end of sealing surface and the piston cavity and is provided with the elasticity conical surface seal, piston ring is not established the end face of sealing surface and is established male cone (strobilus masculinus) 5, the piston cavity corresponding with male cone (strobilus masculinus) 5 established inner conical surface 4, and 4 of inner conical surfaces stay the latter end corresponding with male cone (strobilus masculinus) 5 vertex of a cone positions, and the bottom of inner conical surface 4 latter ends hollows out into cantilever, make it to carry out effective resiliently deformable, inner conical surface 4 latter ends form described elasticity conical surface seal with the contact of male cone (strobilus masculinus) 5 vertex of a cones; The outer edge of described piston ring packing face 10 is equipped with little groove 9, the outer edge that sealing surface 10 behind the little groove 9 is set has the corners of 90 degree, the design of this little groove has improved the aggregation at sealing surface 10 outer edge positions and has piled up situation, make the aggregation at sealing surface outer edge position be difficult for piling up, when rotational valve core, sealing surface is easier wipes aggregation off, and valve seat has self-cleaning function, guarantee that valve seal is reliable lastingly, improve valve working life.
Claims (3)
1. have a ball valve of self-cleaning and dust reduction capability valve seat, comprise valve body, spherical valve core and valve seat, valve seat is piston ring structure, piston ring is actively installed in the piston cavity of valve body, and piston ring is provided with spring housing, establishes spring in the spring housing, under spring action, the sealing surface of piston ring leans the sphere of spherical valve core, it is characterized in that: piston ring is established and is provided with the seal ring sealing between an end of sealing surface and the piston cavity, and piston ring is not established between an end of sealing surface and the piston cavity and is provided with the elasticity conical surface seal.
2. the ball valve of tool self-cleaning as claimed in claim 1 and dust reduction capability valve seat, it is characterized in that: piston ring is not established the end face of sealing surface and is established male cone (strobilus masculinus), the piston cavity corresponding with male cone (strobilus masculinus) established inner conical surface, inner conical surface only stays the latter end corresponding with male cone (strobilus masculinus) vertex of a cone position, the bottom of inner conical surface latter end hollows out into cantilever, and the inner conical surface latter end forms described elasticity conical surface seal with the contact of the male cone (strobilus masculinus) vertex of a cone.
3. the ball valve of tool self-cleaning as claimed in claim 1 and dust reduction capability valve seat, it is characterized in that: the outer edge of described piston ring packing face is equipped with little groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103728702A CN102878320A (en) | 2012-09-29 | 2012-09-29 | Ball valve with a valve seat having functions of auto-cleaning and dust proofing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103728702A CN102878320A (en) | 2012-09-29 | 2012-09-29 | Ball valve with a valve seat having functions of auto-cleaning and dust proofing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878320A true CN102878320A (en) | 2013-01-16 |
Family
ID=47479766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103728702A Pending CN102878320A (en) | 2012-09-29 | 2012-09-29 | Ball valve with a valve seat having functions of auto-cleaning and dust proofing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090042A (en) * | 2013-02-03 | 2013-05-08 | 西麦克阀门制造有限公司 | Ball valve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4353525A (en) * | 1981-07-29 | 1982-10-12 | Honeywell Inc. | Rotary valve seal |
| CN2439573Y (en) * | 2000-06-30 | 2001-07-18 | 温旭莹 | Metallic sealing butterfly valve using flange self-adaptable connection |
| JP3308469B2 (en) * | 1997-06-09 | 2002-07-29 | 株式会社クボタ | valve |
| CN201202836Y (en) * | 2008-05-20 | 2009-03-04 | 浙江三花股份有限公司 | Ball valve |
| CN201517628U (en) * | 2009-09-17 | 2010-06-30 | 四川华林自控科技有限公司 | Corner stroke regulation valve |
| CN201687982U (en) * | 2010-06-10 | 2010-12-29 | 沃泰阀门(昆山)有限公司 | Hard and soft dual seal fixed ball valve |
| CN201715016U (en) * | 2010-07-16 | 2011-01-19 | 凯特姆球阀制造(四川)有限公司 | Dust-proof fixed ball valve |
| CN201764002U (en) * | 2010-09-19 | 2011-03-16 | 浙江超达阀门股份有限公司 | Metal hard sealing ball valve |
| CN102635702A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard-seal ball valve with anti-jamming pretension device |
| CN202768935U (en) * | 2012-09-29 | 2013-03-06 | 凯瑞特阀业有限公司 | Ball valve comprising valve seat with self-cleaning and dust prevention functions |
-
2012
- 2012-09-29 CN CN2012103728702A patent/CN102878320A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4353525A (en) * | 1981-07-29 | 1982-10-12 | Honeywell Inc. | Rotary valve seal |
| JP3308469B2 (en) * | 1997-06-09 | 2002-07-29 | 株式会社クボタ | valve |
| CN2439573Y (en) * | 2000-06-30 | 2001-07-18 | 温旭莹 | Metallic sealing butterfly valve using flange self-adaptable connection |
| CN201202836Y (en) * | 2008-05-20 | 2009-03-04 | 浙江三花股份有限公司 | Ball valve |
| CN201517628U (en) * | 2009-09-17 | 2010-06-30 | 四川华林自控科技有限公司 | Corner stroke regulation valve |
| CN201687982U (en) * | 2010-06-10 | 2010-12-29 | 沃泰阀门(昆山)有限公司 | Hard and soft dual seal fixed ball valve |
| CN201715016U (en) * | 2010-07-16 | 2011-01-19 | 凯特姆球阀制造(四川)有限公司 | Dust-proof fixed ball valve |
| CN201764002U (en) * | 2010-09-19 | 2011-03-16 | 浙江超达阀门股份有限公司 | Metal hard sealing ball valve |
| CN102635702A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard-seal ball valve with anti-jamming pretension device |
| CN202768935U (en) * | 2012-09-29 | 2013-03-06 | 凯瑞特阀业有限公司 | Ball valve comprising valve seat with self-cleaning and dust prevention functions |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090042A (en) * | 2013-02-03 | 2013-05-08 | 西麦克阀门制造有限公司 | Ball valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |