CN102287545A - Butterfly ball valve - Google Patents
Butterfly ball valve Download PDFInfo
- Publication number
- CN102287545A CN102287545A CN2011102055467A CN201110205546A CN102287545A CN 102287545 A CN102287545 A CN 102287545A CN 2011102055467 A CN2011102055467 A CN 2011102055467A CN 201110205546 A CN201110205546 A CN 201110205546A CN 102287545 A CN102287545 A CN 102287545A
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- valve
- sealing surface
- sealing
- seat
- spheroid
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Abstract
The invention relates to a butterfly ball valve, which comprises a valve body, a ball body, a valve stem and a transmission device. The butterfly ball valve is mainly characterized in that the sealing surface of the ball body is formed by fixedly arranging a sealing ring on the ball body through a pressing plate, the sealing ring is provided with a conical sealing surface, the sealing surface of a valve seat is provided with a conical sealing surface matched with the sealing ring, the centerline of the taper angle of the conical sealing surface and the centerline of a channel of the valve body form an eccentric angle, a sealing contact surface formed in matching of the sealing ring and the sealing surface of the valve seat and the axial line of the valve stem form an eccentric distance, the eccentric distance is larger than the diameter of the channel of the valve body, the axial line of the valve stem and the centerline of the channel of the valve body form an eccentric quantity, and the eccentric quantity is arranged on one side of the minimum taper angle between the sealing surface of the valve seat and the centerline of the channel of the valve body. The advantages of a ball valve and three eccentric butterfly valves are integrated, and the sealing performance of the ball valve can be prevented from being affected by the roundness of the ball body. The ball valve has the advantages of good sealing performance, long service life and the like and is suitable for opening and closing of various medium pipelines.
Description
Technical field
The present invention relates to valve field, particularly about a kind of ball valve.
Background technique
Ball valve is widely used in various medium transport pipelines because of simple in structure, open-close convenient, flow resistance are little, and its structure generally is made up of valve body, valve seat, spheroid, valve rod.As patent publication No. is the eccentric metal hard sealed ball valve of CN2337364, constitute by valve body, valve seat, spheroid, valve rod, sphere supports post, Sealing and assembling set, main feature is valve rod and sphere supports post and the eccentric installation of spheroid symmetry, complete mechanical sealing between valve body and the valve seat, it is even to have sealing force, and good seal performance opens and closes light, sealing surface wear is little, is suitable for the pressure and temperature advantages of higher.Its shortcoming is to require high to spheroid processing circularity, the spheroid deviation from circular from directly influences the valve seal performance, and in the valve opening and closing process, there are the frictional property wearing and tearing in ball seal face and sealing surface of seat, easy to wear and leak through opening and closing the back sealing pair repeatedly, sealability is unreliable, and product is short working life.
Summary of the invention
The objective of the invention is the shortcoming at the prior art existence, provide a kind of ball seal face and sealing surface of seat not to have friction and open and close, sealing surface wear is few, sealability is reliable, the butterfly ball valve of long product lifecycle.
Technological scheme of the present invention comprises valve body, spheroid, valve rod, transmission device, valve rod is made up of upper valve rod and lower valve rod, in valve outlet end passway valve seat is set, spheroid is shaped on the through hole with the valve channel equal diameters, ball seal face and sealing surface of seat have the sealing curved surface that cooperatively interacts, mainly be that the ball seal face is fixedly mounted on the spheroid by pressing plate by a seal ring and forms, the sealing circle has conical sealing surface, sealing surface of seat has the conical sealing surface that cooperatively interacts with seal ring, has eccentric angle between the cone angle center line of this taper shape sealing surface and the valve channel center line, has eccentric distance between sealing contact surface when seal ring cooperates with sealing surface of seat and the valve rod axis, this eccentric distance is greater than the valve channel radius, has offset between valve rod axis and the valve channel center line, a side at this offset cone angle minimum position place between sealing surface of seat and valve channel center line.
In above technological scheme, seal ring is multi-level composite sealing ring, and sealing surface of seat is the Hardmetal materials sealing layer that built-up welding forms on valve body.
Advantage of the present invention is that the butterfly plate seal ring is set on spheroid, it when valve closing the three eccentric butterfly valve structure, and be ball-valve structure during valve opening, the advantage of having concentrated ball valve and three eccentric butterfly valve is in one, avoided spheroid circularity to influence the ball valve sealing performance, frictional property wearing and tearing in the minimizing opening-closing process between ball seal face and the sealing surface of seat, its good seal performance, long product lifecycle.
Description of drawings
Structure sectional view when Fig. 1 is a valve closing state of the present invention.
Fig. 2 is the structural representation of A-A among Fig. 1 of the present invention.
Fig. 3 is the structure enlarged view at I place among Fig. 2 of the present invention.
Embodiment
Butterfly ball valve as shown in Figure 1 comprises valve body, spheroid 6, valve rod, transmission device 14, and valve rod is made up of upper valve rod 10 and lower valve rod 4.In valve outlet end passway valve seat is set, spheroid 6 is shaped on the through hole with the valve channel equal diameters, the through hole of spheroid 6 aligns with valve channel when valve opening, makes the without hindrance circulation of medium, and spheroid 6 sealing surfaces and sealing surface of seat have the sealing curved surface that cooperatively interacts.Valve body is connected by bolt 2 with right valve barrel 8 by left valve barrel 5, fixedly connected with transmission device 14 in the upper end of upper valve rod 10, fixedly connected by flat key 9 between lower end and the spheroid 6, lower valve rod 4 is installed between spheroid 6 lower ends and right valve barrel 8 bottoms, and its lower end surface is installed in the right valve barrel 8 by pad 3, bottom 1.Spheroid 6 sealing surfaces are fixedly mounted on the spheroid 6 by pressing plate 15 by a seal ring 7 to be formed, sealing circle 7 has conical sealing surface, sealing surface of seat 16 has the conical sealing surface that cooperatively interacts with seal ring 7, this taper shape sealing surface has cone angle a, has eccentric angle β between its cone angle center line and the valve channel center line, has eccentric distance E between sealing contact surface when seal ring 7 cooperates with sealing surface of seat 16 and the valve rod axis, described eccentric distance E is that seal ring 7 and sealing surface of seat 16 sealing contact surface when being sealed and matched is to the perpendicular distance between the valve rod axis, this eccentric distance E is greater than the valve channel radius, has eccentric amount e between valve rod axis and the valve channel center line, a side at this eccentric amount e cone angle minimum position place between the conical sealing surface of sealing surface of seat 7 and valve channel center line.It during valve closing the three eccentric butterfly valve structure, and be ball-valve structure during valve opening, its spheroid 6 through holes align with valve channel, no flow resistance, seal ring 7 is hidden in the valve pocket, and the advantage of having concentrated ball valve and three eccentric butterfly valve has avoided spheroid 6 circularity to influence ball valve sealing performance and medium washing away seal ring 7 in one, reduced the processing request of spheroid 6, the friction in the minimizing opening-closing process between spheroid 6 sealing surfaces and the sealing surface of seat 16.
Claims (2)
1. butterfly ball valve, comprise valve body, spheroid (6), valve rod, transmission device (14), valve rod is made up of upper valve rod (10) and lower valve rod (4), in valve outlet end passway valve seat is set, spheroid (6) is shaped on the through hole with the valve channel equal diameters, spheroid (6) sealing surface and sealing surface of seat have the sealing curved surface that cooperatively interacts, it is characterized in that spheroid (6) sealing surface is fixedly mounted on the spheroid (6) by pressing plate (15) by a seal ring (7) forms, sealing circle (7) has conical sealing surface, sealing surface of seat (16) has the conical sealing surface that cooperatively interacts with seal ring (7), has eccentric angle (β) between the cone angle center line of this taper shape sealing surface and the valve channel center line, seal ring (7) and sealing surface of seat (16) when cooperating sealing contact surface and valve rod axis between have eccentric distance (E), this eccentric distance (E) is greater than the valve channel radius, have offset (e) between valve rod axis and the valve channel center line, this offset (e) is positioned at a side at cone angle minimum position place between the conical sealing surface of sealing surface of seat (7) and the valve channel center line.
2. butterfly ball valve according to claim 1 is characterized in that seal ring (7) is multi-level composite sealing ring, and sealing surface of seat (16) is to go up the Hardmetal materials sealing layer that built-up welding forms at right valve barrel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110205546 CN102287545B (en) | 2011-07-20 | 2011-07-20 | Butterfly ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110205546 CN102287545B (en) | 2011-07-20 | 2011-07-20 | Butterfly ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102287545A true CN102287545A (en) | 2011-12-21 |
| CN102287545B CN102287545B (en) | 2013-05-01 |
Family
ID=45334199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110205546 Active CN102287545B (en) | 2011-07-20 | 2011-07-20 | Butterfly ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287545B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398188A (en) * | 2013-07-11 | 2013-11-20 | 武汉亚美阀门制造有限公司 | Full-channel self-sealing butterfly type spherical valve |
| CN104565425A (en) * | 2015-01-05 | 2015-04-29 | 应建忠 | C-shaped four-eccentric slurry pump control valve |
| CN113757409A (en) * | 2021-09-01 | 2021-12-07 | 江苏锐鸿机械有限公司 | Sealing ball valve with high corrosion resistance and production process thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4667929A (en) * | 1985-09-10 | 1987-05-26 | Franco Narduzzi | Cutoff valve, particularly for the cutoff of high-temperature fluids |
| CN2080596U (en) * | 1991-01-17 | 1991-07-10 | 北京天竺阀门厂 | Butterfly valve by metal rigid seal with inflating o-ring |
| CN2129844Y (en) * | 1992-07-15 | 1993-04-14 | 邹声武 | Ball type butlerfly valve |
| CN2563376Y (en) * | 2002-08-21 | 2003-07-30 | 河南上蝶阀门股份有限公司 | Three dimension eccentric full metal sealed butterfly valve |
| CN2649883Y (en) * | 2003-10-30 | 2004-10-20 | 石景东 | Magnetic-sealed cleanable three-eccentric half-ball valve |
| US20050151107A1 (en) * | 2003-12-29 | 2005-07-14 | Jianchao Shu | Fluid control system and stem joint |
| KR20080113665A (en) * | 2007-06-25 | 2008-12-31 | 서광공업 주식회사 | A ball valve having metal sheet |
| CN201209683Y (en) * | 2008-06-20 | 2009-03-18 | 湖北洪城通用机械股份有限公司 | Compensating semi ball valve |
| US20100200791A1 (en) * | 2009-02-07 | 2010-08-12 | Victaulic Company | Valve Having High Pressure and Low Pressure Seals |
| CN202144879U (en) * | 2011-07-20 | 2012-02-15 | 浙江宝龙阀门制造有限公司 | Butterfly-shaped spherical valve |
-
2011
- 2011-07-20 CN CN 201110205546 patent/CN102287545B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4667929A (en) * | 1985-09-10 | 1987-05-26 | Franco Narduzzi | Cutoff valve, particularly for the cutoff of high-temperature fluids |
| CN2080596U (en) * | 1991-01-17 | 1991-07-10 | 北京天竺阀门厂 | Butterfly valve by metal rigid seal with inflating o-ring |
| CN2129844Y (en) * | 1992-07-15 | 1993-04-14 | 邹声武 | Ball type butlerfly valve |
| CN2563376Y (en) * | 2002-08-21 | 2003-07-30 | 河南上蝶阀门股份有限公司 | Three dimension eccentric full metal sealed butterfly valve |
| CN2649883Y (en) * | 2003-10-30 | 2004-10-20 | 石景东 | Magnetic-sealed cleanable three-eccentric half-ball valve |
| US20050151107A1 (en) * | 2003-12-29 | 2005-07-14 | Jianchao Shu | Fluid control system and stem joint |
| KR20080113665A (en) * | 2007-06-25 | 2008-12-31 | 서광공업 주식회사 | A ball valve having metal sheet |
| CN201209683Y (en) * | 2008-06-20 | 2009-03-18 | 湖北洪城通用机械股份有限公司 | Compensating semi ball valve |
| US20100200791A1 (en) * | 2009-02-07 | 2010-08-12 | Victaulic Company | Valve Having High Pressure and Low Pressure Seals |
| CN202144879U (en) * | 2011-07-20 | 2012-02-15 | 浙江宝龙阀门制造有限公司 | Butterfly-shaped spherical valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398188A (en) * | 2013-07-11 | 2013-11-20 | 武汉亚美阀门制造有限公司 | Full-channel self-sealing butterfly type spherical valve |
| CN103398188B (en) * | 2013-07-11 | 2015-09-30 | 武汉亚美阀门制造有限公司 | A kind of full tunnel selfsealings butterfly spherical valve |
| CN104565425A (en) * | 2015-01-05 | 2015-04-29 | 应建忠 | C-shaped four-eccentric slurry pump control valve |
| CN113757409A (en) * | 2021-09-01 | 2021-12-07 | 江苏锐鸿机械有限公司 | Sealing ball valve with high corrosion resistance and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102287545B (en) | 2013-05-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Butterfly Ball Valve Effective date of registration: 20210922 Granted publication date: 20130501 Pledgee: Agricultural Bank of China Limited Yongjia County sub branch Pledgor: ZHEJIANG PORO VALVE MANUFACTURING Co.,Ltd. Registration number: Y2021330001599 |