CN201043616Y - Dual-seal ball valve - Google Patents
Dual-seal ball valve Download PDFInfo
- Publication number
- CN201043616Y CN201043616Y CNU2007200371740U CN200720037174U CN201043616Y CN 201043616 Y CN201043616 Y CN 201043616Y CN U2007200371740 U CNU2007200371740 U CN U2007200371740U CN 200720037174 U CN200720037174 U CN 200720037174U CN 201043616 Y CN201043616 Y CN 201043616Y
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- valve seat
- valve
- seat
- ball
- wall
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- Expired - Lifetime
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Abstract
The utility model relates to a double sealing ball valve comprising a power unit, a valve rod, a valve body, valve seats and a ball, wherein, the inlet valve seat is provided with a dynamic sealing structure, the outlet side of the ball valve is provided with a dynamic sealing structure matching with the inlet seat to form double sealing for the ball valve. If the seal between the inlet seat and the ball defects and the dirt goes into the room between the ball and the valve, the sealing ring made of flexible graphite arranged in the left upper wall of the outlet valve seat stops the dirt such as cinder, ash etc, and only allows liquid to go through. The liquid finally reaches the left inner wall of the outlet valve seat, and because the right upper wall of the outlet valve seat is provided with O-rings, the liquid can not go through. Liquid in the left inner wall of the outlet valve seat pushes the outlet seat to move leftward, the external wall of the left side of the seat contacts the external wall of the ball to form dynamic sealing to cooperate with the dynamic sealing of the inlet valve seat, thereby achieving a double sealing, and greatly improving the sealing of the valve.
Description
Technical field
The utility model relates to a kind of ball valve, relates in particular to a kind of double seal ball valve.
Background technique
This class ball valve of the prior art is mainly used in the collection and the discharging of impurity such as coal chemical engineering equipment cinder, coal ash, and the applying working condition condition of valve is very harsh, and this ball valve also can be used for the medium that other conveying and discharging contain a large amount of solid particles.This class ball valve comprises power plant, valve rod, valve body, valve seat, spheroid etc.Inlet/outlet place at valve body, respectively be provided with a valve seat, the suction side valve seat has one and leaves the left-external side wall in gap with valve body, the upper left wall of being close to valve body, left madial wall, upper right wall, constitute the right side wall that is sealed and matched with spheroid, and outer wall, upper left wall and valve body close neighbour locate to be provided with the seal ring that is made of Expanded graphite as static seal, are vertically arranged with spring on left madial wall, from left to right set gradually the seal ring and the sealing of O type that are made of Expanded graphite on upper right wall.The outlet side valve seat is the same with the structure of suction side valve seat, and just both are for being symmetrical arranged, the seal ring that is connected seal ring that the cooperation place is followed successively by the O RunddichtringO, is made of Expanded graphite, spring with valve body, is made of Expanded graphite.This valve belongs to petcock, only has pressure at suction side, outlet side does not have pressure, valve seat and spheroid are that the principle of its motive sealing of motive sealing is: the import that enters valve when impurity, owing to leave the gap between the left-external side wall of valve seat and the valve body, impurity will pass through this gap, enter into the space between valve body and the valve seat, because the upper left wall of valve seat is provided with the seal ring that is made of Expanded graphite, can be with cinder, impurity such as coal ash block, and only allow the liquid in the impurity pass through, and liquid just can enter in the left madial wall and the space between the valve body of valve seat, because the upper right wall place of valve seat is provided with the O RunddichtringO, prevent that so again liquid is excessive from the valve seat right side, along with the liquid that enters is more and more, liquid can promote whole valve seat and turn right mobile, the right side wall and the spheroid outer wall of valve seat are close to, are constituted motive sealing.At outlet side, because the outlet side valve seat is the same with the structure of suction side valve seat, but both are symmetrical arranged, because the outlet side valve seat does not possess the motive sealing function, if it is bad or when losing sealability to run between suction side valve seat and the spheroid sealing, the impurity of carrying may enter in the space between spheroid and the valve body, when impurity flows to the outlet side valve seat, because the outlet side valve seat does not possess the motive sealing function, therefore can't stop impurity from this outlet side valve seat and spheroid between pass through, equal this valve and lost sealing, this type of ball valve belongs to one-way sealing, poor sealing.
Summary of the invention
The purpose of this utility model is to provide a kind of double seal ball valve of good seal performance at not enough defective of the prior art.
For achieving the above object, the utility model adopts a kind of double seal ball valve, comprise power plant, valve rod, valve body, valve seat, spheroid, wherein the suction side valve seat has movable sealing structure, the outlet side valve seat of ball valve has movable sealing structure, cooperates the double seal that constitutes this ball valve with the suction side valve seat.
This practicality further is set to the upper left wall of outlet side valve seat and valve body close neighbour again and locates to be provided with the seal ring that is made of Expanded graphite as static seal, on the left madial wall of outlet side valve seat, be vertically arranged with spring, the upper right wall of outlet side valve seat is provided with the O RunddichtringO, and the outlet side valve seat constitutes motive sealing with spheroid and cooperates.
The utility model is by providing a kind of double seal ball valve, and wherein the suction side valve seat has movable sealing structure, and the outlet side valve seat of ball valve has movable sealing structure, cooperates the double seal that constitutes this ball valve with the suction side valve seat.If it is bad or lose sealability to run between suction side valve seat and the spheroid sealing, when the impurity of carrying enters in the space between spheroid and the valve body, the seal ring that is made of Expanded graphite of the upper left wall of outlet side valve seat can be with cinder, impurity such as coal ash block, only allow liquid to pass through, liquid enters into the left madial wall of outlet side valve seat at last, simultaneously at the upper right wall of outlet side valve seat because be provided with the O RunddichtringO, liquid can't be overflowed from this end, liquid in the left madial wall of outlet side valve seat promotes the outlet side valve seat toward moving left, the left side outer wall and the spheroid outer wall of valve seat are close to, are constituted motive sealing and cooperate.Compared with prior art, have the double seal of inlet/outlet side valve seat, sealing improves greatly.
Description of drawings
Fig. 1 is the utility model embodiment ball-valve structure schematic representation.
Fig. 2 is the A portion enlarged diagram of Fig. 1.
Fig. 3 is the C portion enlarged diagram of Fig. 2.
Fig. 4 is the B portion enlarged diagram of Fig. 2.
Embodiment
As Fig. 1,2,3, shown in 4, this practical specific embodiment is a kind of double seal ball valve, comprise power plant (1), valve rod, valve body (3), valve seat, spheroid (2), wherein suction side valve seat (4) has one and leaves the left-external side wall in gap with valve body (3), the upper left wall of being close to valve body (3), left side madial wall, upper right wall, constitute the right side wall that is sealed and matched with spheroid (2), and outer wall, upper left wall and valve body close neighbour locate to be provided with the seal ring that is made of Expanded graphite as static seal, on left madial wall, be vertically arranged with spring, on upper right wall, from left to right set gradually the seal ring and the sealing of O type that constitute by Expanded graphite; The upper left wall (51) of outlet side valve seat (5) and valve body (3) close neighbour locate to be provided with the seal ring (6) that is made of Expanded graphite as static seal, on the left madial wall (52) of outlet side valve seat (5), be vertically arranged with spring (7), the upper right wall (53) of outlet side valve seat (5) is provided with O RunddichtringO (8), and outlet side valve seat (5) constitutes motive sealing with spheroid (2) and cooperates.
If it is bad or lose sealability to run between suction side valve seat (4) and the spheroid (2) sealing, when the impurity of carrying enters in the space between spheroid (2) and the valve body (3), the seal ring (6) that is made of Expanded graphite of the upper left wall of outlet side valve seat (5) (51) can be with cinder, impurity such as coal ash block, only allow liquid to pass through, liquid enters into the left madial wall (52) of outlet side valve seat (5) at last, simultaneously at the upper right wall (53) of outlet side valve seat (5) because be provided with O RunddichtringO (8), liquid can't be overflowed from this end, liquid in the left madial wall (52) of outlet side valve seat (5) promotes outlet side valve seat (5) toward moving left, the left side outer wall (54) of valve seat is close to spheroid (2) outer wall, constituting motive sealing cooperates, fit into the motive sealing of oral-lateral valve seat (4), constitute double seal, sealing improves greatly.
Claims (2)
1. double seal ball valve, comprise power plant (1), valve rod, valve body (3), valve seat, spheroid (2), wherein suction side valve seat (4) has movable sealing structure, it is characterized in that: the outlet side valve seat (5) of ball valve has movable sealing structure, cooperates the double seal that constitutes this ball valve with suction side valve seat (4).
2. double seal ball valve according to claim 1, it is characterized in that: the upper left wall (51) of described outlet side valve seat (5) and valve body (3) close neighbour locate to be provided with the seal ring (6) that is made of Expanded graphite as static seal, on the left madial wall (52) of outlet side valve seat (5), be vertically arranged with spring (7), the upper right wall (53) of outlet side valve seat (5) is provided with O RunddichtringO (8), and outlet side valve seat (5) constitutes motive sealing with spheroid (2) and cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200371740U CN201043616Y (en) | 2007-04-27 | 2007-04-27 | Dual-seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200371740U CN201043616Y (en) | 2007-04-27 | 2007-04-27 | Dual-seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043616Y true CN201043616Y (en) | 2008-04-02 |
Family
ID=39258511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200371740U Expired - Lifetime CN201043616Y (en) | 2007-04-27 | 2007-04-27 | Dual-seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043616Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994850A (en) * | 2010-11-03 | 2011-03-30 | 无锡杰尔压缩机有限公司 | Compensating structure of ball-valve seal ring |
| CN102022562A (en) * | 2009-09-16 | 2011-04-20 | 施耐德电气建筑有限公司 | Ball valve with anti-rotational pressure plate |
| CN102606761A (en) * | 2012-03-29 | 2012-07-25 | 浙江超达阀门股份有限公司 | Ball valve base structure with spring protection mechanism |
| CN102635703A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Spherical valve seat structure with disc-shaped spring combined body |
| CN108603608A (en) * | 2015-12-08 | 2018-09-28 | 达希尔阀门公司 | Valve for hex holding vessel |
-
2007
- 2007-04-27 CN CNU2007200371740U patent/CN201043616Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022562A (en) * | 2009-09-16 | 2011-04-20 | 施耐德电气建筑有限公司 | Ball valve with anti-rotational pressure plate |
| US8413684B2 (en) | 2009-09-16 | 2013-04-09 | Schneider Electric Buildings, Llc | Ball valve with anti-rotational pressure plate |
| CN102022562B (en) * | 2009-09-16 | 2013-12-04 | 施耐德电气建筑有限公司 | Ball valve with anti-rotational pressure plate |
| US9377120B2 (en) | 2009-09-16 | 2016-06-28 | Schneider Electric Builders, LLC | Ball valve with anti-rotational pressure plate |
| US9625040B2 (en) | 2009-09-16 | 2017-04-18 | Schneider Electric Buildings, Llc | Ball valve with anti-rotational pressure plate |
| CN101994850A (en) * | 2010-11-03 | 2011-03-30 | 无锡杰尔压缩机有限公司 | Compensating structure of ball-valve seal ring |
| CN102606761A (en) * | 2012-03-29 | 2012-07-25 | 浙江超达阀门股份有限公司 | Ball valve base structure with spring protection mechanism |
| CN102635703A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Spherical valve seat structure with disc-shaped spring combined body |
| CN108603608A (en) * | 2015-12-08 | 2018-09-28 | 达希尔阀门公司 | Valve for hex holding vessel |
| US10823297B2 (en) | 2015-12-08 | 2020-11-03 | Daher Valves | Valve for uranium hexafluoride storage tank |
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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: CHAODA VALVE GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG CHAODA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei Avenue 325105 Zhejiang Oubei town of Yongjia County Patentee after: Chaoda Valve Group Co., Ltd. Address before: Jiangbei Avenue 325105 Zhejiang Oubei town of Yongjia County Patentee before: Zhejiang Chaoda Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080402 |
|
| CX01 | Expiry of patent term |