CN105221765A - A kind of eccentric ball-type butterfly valve - Google Patents
A kind of eccentric ball-type butterfly valve Download PDFInfo
- Publication number
- CN105221765A CN105221765A CN201510711544.3A CN201510711544A CN105221765A CN 105221765 A CN105221765 A CN 105221765A CN 201510711544 A CN201510711544 A CN 201510711544A CN 105221765 A CN105221765 A CN 105221765A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- ball
- type butterfly
- pressure plate
- valve
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2268—Sealing means for the axis of rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of eccentric ball-type butterfly valve, comprise valve body, ball-type butterfly plate, valve seat, pressure plate loop, butterfly bar, filler and Gland, described ball-type butterfly plate is arranged in valve body, ball-type butterfly plate is connected with butterfly bar, the thickness of described ball-type butterfly plate is greater than the thickness of described valve seat, described valve seat is connected with the inner chamber body internal face of valve body, described pressure plate loop is positioned at valve seat outer end, pressure plate loop is fixedly installed jump ring, pressure plate loop is connected with valve body by jump ring, and pressure plate loop interior edge face compresses valve seat, described valve seat has elasticity, and described valve seat is provided with sealing inclined-plane, described ball-type butterfly plate is wholely set the sealing sphere mated with described sealing inclined-plane, by the arc surface that the impacting force of pressure plate loop makes the sealing inclined facial disfigurement on valve seat become to mate with described sealing sphere, the angle of swing of the sealing sphere of described ball-type butterfly plate is 5-9 °.Technique scheme, reasonable in design, structure are simple, reliable operation, long service life, good airproof performance, not easily leak.
Description
Technical field
The present invention relates to butterfly valve technical field, be specifically related to a kind of eccentric ball-type butterfly valve.
Background technique
In prior art, between the valve seat of tradition butterfly valve and butterfly plate, the cylinder inner plane that adopts coordinates more, there is certain drawback in the fit system of this structure: can not coordinate too tight between butterfly plate and valve seat, if coordinate too tight, valve switch is just very difficult, if do not exert oneself, just be difficult to Open valve or complete throttle down, and throttle down of exerting oneself, butterfly plate is just easy to distortion and causes damage, and working life is short.But, if butterfly plate coordinates defective tightness with valve seat, be then easy to produce and leak.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide that a kind of reasonable in design, structure are simple, the eccentric ball-type butterfly valve of reliable operation, long service life, good airproof performance.
For achieving the above object, the invention provides following technological scheme: a kind of eccentric ball-type butterfly valve, comprise valve body, ball-type butterfly plate, valve seat, pressure plate loop, butterfly bar, filler and Gland, described ball-type butterfly plate is arranged in valve body, ball-type butterfly plate is connected with butterfly bar, the thickness of described ball-type butterfly plate is greater than the thickness of described valve seat, described valve seat is connected with the inner chamber body internal face of valve body, described pressure plate loop is positioned at valve seat outer end, pressure plate loop is fixedly installed jump ring, the screw thread that pressure plate loop is carried by jump ring or pressure plate loop is connected with valve body, and pressure plate loop interior edge face compresses valve seat, described valve seat has elasticity, and described valve seat is provided with sealing inclined-plane, described ball-type butterfly plate is wholely set the sealing sphere mated with described sealing inclined-plane, by the arc surface that the impacting force of pressure plate loop makes the sealing inclined facial disfigurement on valve seat become to mate with described sealing sphere, the angle of swing of the sealing sphere of described ball-type butterfly plate is 5-9 °.
By adopting technique scheme, make the sealing inclined-plane of valve seat cause plastic deformation by the compression of pressure plate loop and become the arc surface identical with butterfly plate sphere, this process is plastic history, then is just resiliently deformable process toward the deformation process of rear valve base; When valve seat is closed, valve seat is resiliently deformable, and when valve seat is opened, valve seat resiliently deformable is recovered; Ball-type butterfly plate and valve seat are not fragile, long service life, good seal performance, and reasonable in design, structure are simple, reliable operation, not easily leak.
The present invention is set to further: the sealing engagement angle of described ball-type butterfly plate is 6-9 °.By this setting, after ball-type butterfly plate and valve seat coordinate, wearing and tearing are few, long service life.
The present invention is also set to further: the first make contact of described ball-type butterfly plate and valve seat is the mid point on the sealing inclined-plane of valve seat, and makes described valve seat have the compressibility of 8%-10% under the impacting force of pressure plate loop.By this setting, the sealing inclined-plane of valve seat becomes arc shaped surface, forms enough seal pressures, both ensures reliable sealing, ensures again reasonably lighter moment of torsion, thus improves the life-span used further.
The present invention is also set to further: the gyration center of described butterfly bar departs from the sealing inclined-plane setting of described valve seat.By this setting, ensure butterfly bar gyration center and seal sphere centre consistent, valve seat has enough sealed widths.
The present invention is also set to further: the interior edge face of described pressure plate loop has been wholely set locating bump, and the corresponding described locating bump position of described valve seat is provided with the positioning groove mated with described locating bump.By this setting, pressure plate loop is connected reliably with valve seat.
The present invention is also set to further: described filler and Gland are arranged on valve body upper end, and described butterfly bar upper end is socketed with several O type circles.By this setting, both ensured multi-stage sealed insurance, the moment of torsion between butterfly bar and filler can have been reduced again.
Advantage of the present invention is: compared with prior art, vibrational power flow of the present invention is more reasonable, make the sealing inclined-plane of valve seat cause plastic deformation by the compression of pressure plate loop and become the arc surface identical with butterfly plate sphere, this process is plastic history, then is just resiliently deformable process toward the deformation process of rear valve base; When valve seat is closed, valve seat is resiliently deformable, and when valve seat is opened, valve seat resiliently deformable is recovered; Ball-type butterfly plate and valve seat are not fragile, long service life, good seal performance, and structure is simple, reliable operation, not easily leak.
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the ball-type butterfly plate of the embodiment of the present invention and the assembling schematic diagram of valve seat.
Embodiment
See Fig. 1 and Fig. 2, a kind of eccentric ball-type butterfly valve disclosed by the invention, comprise valve body 1, ball-type butterfly plate 2, valve seat 3, pressure plate loop 4, butterfly bar 5, filler 6 and Gland 7, described ball-type butterfly plate 2 is arranged in valve body 1, ball-type butterfly plate 2 is connected with butterfly bar 5, the thickness of described ball-type butterfly plate 2 is greater than the thickness of described valve seat 3, described valve seat 3 is connected with the inner chamber body internal face of valve body 1, described pressure plate loop 4 is positioned at valve seat 3 outer end, pressure plate loop 4 is fixedly installed jump ring 8, the screw thread that pressure plate loop 4 is carried by jump ring 8 or pressure plate loop 4 is connected with valve body 1, and pressure plate loop 4 interior edge face compresses valve seat 3, described valve seat 3 has elasticity, and described valve seat 3 is provided with sealing inclined-plane 31, described ball-type butterfly plate 2 is wholely set the sealing sphere 21 mated with described sealing inclined-plane 31, the sealing inclined-plane 31 on valve seat 3 is made to be deformed into the arc surface mated with described sealing sphere 21 by the impacting force of pressure plate loop 4, the angle of swing of the sealing sphere 21 of described ball-type butterfly plate 2 is 5-9 °.
As preferably, large gauge valve is connected with valve body 1 from threaded by pressure plate loop 4, and ball-type butterfly plate 2 is connected by existing screw with butterfly bar 5; The angle of swing on the sealing inclined-plane 31 of valve seat 3 is 5-6 °, and ball-type butterfly plate 2, from being opened to closedown, have rotated 90 °, but the real sealing engagement angle with sealing inclined-plane 31 really only has 6-9 °, is equivalent to 1/15 ~ 1/10 of the swing 90 ° of existing 0 shape ball valve.Therefore after coordinating, wearing and tearing are few, and long service life, is higher than more than 10 times of the working life of ball valve.
For making structure of the present invention more reasonable, as preferably, ball-type butterfly plate 2 described in the present embodiment and the first make contact of valve seat 3 are the mid point on the sealing inclined-plane 31 of valve seat 3, and under the impacting force of pressure plate loop 4, make described valve seat 3 have the compressibility of 8%-10%.This technological scheme, both ensured reliable sealing, ensured again reasonably lighter moment of torsion, thus improved the life-span used further.
The sealing inclined-plane 31 that the gyration center of described butterfly bar 5 departs from described valve seat 3 is arranged.Namely to ensure rotating center and sphere centre consistent, also to ensure that valve seat 3 will have enough sealed widths.
The interior edge face of described pressure plate loop 4 has been wholely set locating bump 41, and corresponding described locating bump 41 position of described valve seat 3 is provided with the positioning groove 32 mated with described locating bump 41.The locating bump 41 of pressure plate loop 4 connects with corresponding positioning groove 32, makes pressure plate loop 4 be connected more reliable with valve seat 3.
Described filler 6 and Gland 7 are arranged on valve body 1 upper end, and described butterfly bar 5 upper end is socketed with several O type circles 9.Described filler 6 is arranged in the butterfly bar mounting hole of valve body upper end, and O type circle 9 is arranged between filler, and Gland 7 is connected with valve body 1 by existing bolt, thus compresses filler 6.Both ensured multi-stage sealed insurance, the moment of torsion between butterfly bar 5 and filler 6 can have been reduced again.
During practical application, make the sealing inclined-plane of valve seat cause plastic deformation by the compression of pressure plate loop and become the arc surface identical with butterfly plate sphere, this process is plastic history, then is just resiliently deformable process toward the deformation process of rear valve base; When valve seat is closed, valve seat is resiliently deformable, and when valve seat is opened, valve seat resiliently deformable is recovered; Ball-type butterfly plate and valve seat are not fragile, long service life, good seal performance, and structure is simple, reliable operation, not easily leak.
The eccentric Ball type butlerfly valve of the present invention, is applicable to the valve of DN50 ~ DN1400 bore.The seal pressure that the thickness of valve seat depends on sealed width and sealing wrapping angle and formed, only have rational seal pressure, guarantee reliably seals.The thickness of dish plate is also larger than the thickness of valve seat simultaneously, could contain the sealed width needed for valve seat like this.
Above-described embodiment is to specific descriptions of the present invention; only be used to further illustrate the present invention; can not be interpreted as limiting the scope of the present invention, the technician of related domain makes some nonessential improvement according to the content of foregoing invention to the present invention and adjustment all falls within protection scope of the present invention.
Claims (6)
1. an eccentric ball-type butterfly valve, comprise valve body (1), ball-type butterfly plate (2), valve seat (3), pressure plate loop (4), butterfly bar (5), filler (6) and Gland (7), described ball-type butterfly plate (2) is arranged in valve body (1), ball-type butterfly plate (2) is connected with butterfly bar (5), it is characterized in that: the thickness of described ball-type butterfly plate (2) is greater than the thickness of described valve seat (3), described valve seat (3) is connected with the inner chamber body internal face of valve body (1), described pressure plate loop (4) is positioned at valve seat (3) outer end, pressure plate loop (4) is fixedly installed jump ring (8), the screw thread that pressure plate loop (4) is carried by jump ring (8) or pressure plate loop (4) is connected with valve body (1), and pressure plate loop (4) interior edge face compresses valve seat (3), described valve seat (3) has elasticity, and described valve seat (3) is provided with sealing inclined-plane (31), described ball-type butterfly plate (2) is wholely set the sealing sphere (21) mated with described sealing inclined-plane (31), the sealing inclined-plane (31) on valve seat (3) is made to be deformed into the arc surface mated with described sealing sphere (21) by the impacting force of pressure plate loop (4), the angle of swing of the sealing sphere (21) of described ball-type butterfly plate (2) is 5-9 °.
2. a kind of eccentric ball-type butterfly valve according to claim 1, is characterized in that: the sealing engagement angle of described ball-type butterfly plate (2) is 6-9 °.
3. a kind of eccentric ball-type butterfly valve according to claim 2, it is characterized in that: described ball-type butterfly plate (2) is the mid point on the sealing inclined-plane (31) of valve seat (3) with the first make contact of valve seat (3), and under the impacting force of pressure plate loop (4), make described valve seat (3) have the compressibility of 8%-10%.
4. a kind of eccentric ball-type butterfly valve according to claim 3, is characterized in that: the gyration center of described butterfly bar (5) departs from sealing inclined-plane (31) setting of described valve seat (3).
5. a kind of eccentric ball-type butterfly valve according to claim 3 or 4, it is characterized in that: the interior edge face of described pressure plate loop (4) has been wholely set locating bump (41), described valve seat (3) corresponding described locating bump (41) position is provided with the positioning groove (32) mated with described locating bump (41).
6. a kind of eccentric ball-type butterfly valve according to claim 5, it is characterized in that: described filler (6) and Gland (7) are arranged on valve body (1) upper end, and described butterfly bar (5) upper end is socketed with several O type circles (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711544.3A CN105221765A (en) | 2015-10-28 | 2015-10-28 | A kind of eccentric ball-type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711544.3A CN105221765A (en) | 2015-10-28 | 2015-10-28 | A kind of eccentric ball-type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221765A true CN105221765A (en) | 2016-01-06 |
Family
ID=54990903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510711544.3A Pending CN105221765A (en) | 2015-10-28 | 2015-10-28 | A kind of eccentric ball-type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221765A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386620A (en) * | 2018-11-14 | 2019-02-26 | 上海鸿研物流技术有限公司 | Butterfly valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377954A (en) * | 1993-12-06 | 1995-01-03 | Adams Gmbh & Co. Armaturen Kg | Valve with seal ring having edge-welded laminations |
| CN2336146Y (en) * | 1998-06-04 | 1999-09-01 | 崔有鹏 | Double eccentric spherical butterfly valve with full PTFE lining |
| CN101344173A (en) * | 2008-08-27 | 2009-01-14 | 湖南泵阀制造有限公司 | Metal hard-sealing anti-scaling intercepting ball self-acting valve |
| CN102537380A (en) * | 2010-12-17 | 2012-07-04 | 杨忠义 | Bidirectional high-performance soft sealing butterfly valve |
| CN204477334U (en) * | 2015-02-06 | 2015-07-15 | 浙江双球阀门有限公司 | A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve |
| CN205118278U (en) * | 2015-10-28 | 2016-03-30 | 浙江顺源阀门有限公司 | Eccentric ball -type butterfly valve |
-
2015
- 2015-10-28 CN CN201510711544.3A patent/CN105221765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377954A (en) * | 1993-12-06 | 1995-01-03 | Adams Gmbh & Co. Armaturen Kg | Valve with seal ring having edge-welded laminations |
| CN2336146Y (en) * | 1998-06-04 | 1999-09-01 | 崔有鹏 | Double eccentric spherical butterfly valve with full PTFE lining |
| CN101344173A (en) * | 2008-08-27 | 2009-01-14 | 湖南泵阀制造有限公司 | Metal hard-sealing anti-scaling intercepting ball self-acting valve |
| CN102537380A (en) * | 2010-12-17 | 2012-07-04 | 杨忠义 | Bidirectional high-performance soft sealing butterfly valve |
| CN204477334U (en) * | 2015-02-06 | 2015-07-15 | 浙江双球阀门有限公司 | A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve |
| CN205118278U (en) * | 2015-10-28 | 2016-03-30 | 浙江顺源阀门有限公司 | Eccentric ball -type butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386620A (en) * | 2018-11-14 | 2019-02-26 | 上海鸿研物流技术有限公司 | Butterfly valve |
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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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yongjin Inventor after: Wang Qi Inventor after: Shen Hanmin Inventor before: Wang Yongjin Inventor before: Wang Qi Inventor before: Shen Hanmin |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |