CN201318469Y - Valve seat of ball valve - Google Patents
Valve seat of ball valve Download PDFInfo
- Publication number
- CN201318469Y CN201318469Y CNU2008202293685U CN200820229368U CN201318469Y CN 201318469 Y CN201318469 Y CN 201318469Y CN U2008202293685 U CNU2008202293685 U CN U2008202293685U CN 200820229368 U CN200820229368 U CN 200820229368U CN 201318469 Y CN201318469 Y CN 201318469Y
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- CN
- China
- Prior art keywords
- valve
- valve seat
- supporting surface
- high pressure
- pressure supporting
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a ball valve, in particular to a valve seat of ball valve, wherein the valve seat is arranged between a valve body of the ball valve and a ball body, the valve body is divided into a fluid cavity and a valve cavity by the ball body by means of the valve seat, and the fluid cavity and the valve cavity are always isolated. The valve seat comprises a sealing surface which is always sealed on the ball body and whose inner end is closed to the fluid cavity of the valve body, a high-pressure supporting surface whose outer end is closed to the valve cavity of the valve body, and at least a pressure balance groove is arranged on the high-pressure supporting surface, and the pressure balance groove is penetrated through the inner end and the outer end of the high-pressure supporting surface. The valve seat of ball valve leads the torque of a valve which adopts the ball valve of the valve seat to be smaller through simultaneously arranging the sealing surface and the high-pressure supporting surface and arranging the pressure balance groove on the high-pressure supporting surface, and the valve seat of ball valve can open and close a valve by a smaller driving device no matter in high-pressure environment or low-pressure environment, thereby saving production cost.
Description
Technical field
The utility model relates to a kind of ball valve, is meant a kind of valve seat of ball valve especially.
Background technique
Ball valve generally includes a spheroid and a valve body, be provided with valve seat between valve body and the spheroid, this valve seat is separated into valve pocket and fluid chamber with this valve body, form a sealing surface on the valve seat, no matter being the state of connecting or blocking, fluid chamber all rely on the sealing face that valve pocket and fluid chamber is isolated, the situation malfunctioning for the possible valve seat that guarantees sealing effect and avoid sealing surface wear to cause takes place, the surface of contact that will guarantee valve seat and spheroid is enough big, be that sealing surface is enough big, this has just caused the moment of torsion of ball valve bigger, bear at ball valve under the situation of high pressure, need with bigger drive unit opening and closing valve, bigger drive unit can need higher cost certainly, causes the cost of whole ball valve higher.In addition, under the situation of valve at high pressure, sealing surface may form vacuum, makes spheroid and valve seat locking, this moment to open or throttle down just extremely difficult.
The model utility content
Main purpose of the present utility model is to overcome between thereby ball valve has only a sealing area to cause ball valve in the prior art cost higher and valve seat and the spheroid the easily shortcoming of locking, and a kind of valve seat that has the ball valve of sealing area and supporting zone simultaneously is provided.
The utility model adopts following technological scheme:
A kind of valve seat of ball valve, this valve seat are located between the valve body and spheroid of ball valve, and this spheroid is separated into fluid chamber and valve pocket by valve seat with valve body, and this fluid chamber and valve pocket are isolated all the time, and this valve seat comprises:
One sealing surface, sealing face are sealed on the spheroid and the interior distolateral fluid chamber that closes on valve body of sealing face all the time;
One high pressure supporting surface, the outer distolateral valve pocket that closes on valve body of this high pressure supporting surface, this high pressure supporting surface is provided with at least one relief groove, and this relief groove runs through the interior distolateral and distolateral of high pressure supporting surface outward;
The interior distolateral of outer distolateral and this high pressure supporting surface of sealing face closes on mutually.
According to a better embodiment of the present utility model, between described sealing surface and described high pressure supporting surface, be provided with a dashpot, this dashpot is isolated with sealing surface and high pressure supporting surface, and is communicated with described valve pocket by described relief groove.
According to a better embodiment of the present utility model, described dashpot has a V-arrangement or channel section.
According to a better embodiment of the present utility model, described sealing surface and described high pressure supporting surface are arc shaped surface, and with the same centre of sphere of described spheroid.
According to a better embodiment of the present utility model, the length of the cross section arc of described sealing surface is less than the length of the cross section arc of described high pressure supporting surface.
According to a better embodiment of the present utility model, the PTFE valve seat that described valve seat is formed in one.
By above-mentioned to description of the present utility model as can be known, compared with prior art, the valve seat of a kind of ball valve of the utility model is by being provided with a sealing surface and a high pressure supporting surface simultaneously, and on the high pressure supporting surface, be provided with relief groove, the valve torque of the ball valve of feasible employing the utility model valve seat is less, no matter be at hyperbaric environment or environment under low pressure, can both be with less drive unit opening and closing valve, thus saved cost; In addition, because the existence of relief groove makes valve under the situation of high pressure, sealing surface and high pressure supporting surface can not form vacuum yet, have avoided the situation of locking between valve seat and the spheroid to take place.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment valve seat;
Fig. 2 is that the utility model valve seat combines with spheroid and the structural representation during valve opening;
Fig. 3 is that the utility model valve seat combines with spheroid and the structural representation during valve closing;
Fig. 4 is the structural representation of the ball valve of employing the utility model valve seat.
The component names of each label representative is as follows among the figure:
10 valve seats; 11 sealing surfaces; Distolateral in 111 sealing surfaces; 112 sealing surfaces are outer distolateral; 12 high pressure supporting surfaces; Distolateral in 121 supporting surfaces; 122 supporting surfaces are outer distolateral; 13 relief grooves; 14 dashpots;
20 valve bodies;
30 spheroids;
40 fluid chambers;
50 valve pockets.
Embodiment
Below the utility model will be further described by embodiment.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of valve seat of ball valve, this valve seat 10 are located between the valve body 20 and spheroid 30 of ball valve, and this spheroid 30 is separated into fluid chamber 40 and valve pocket 50 by valve seat 10 with valve body 20, this fluid chamber 40 and valve pocket 50 are isolated all the time, and this valve seat 10 comprises:
One sealing surface 11, sealing face 11 be sealed on the spheroid 30 all the time and sealing face 11 interior distolateral 111 close on fluid chamber 40;
One high pressure supporting surface 12, outer distolateral 122 of this high pressure supporting surface 12 closes on valve pocket 50, and this high pressure supporting surface 12 is provided with a relief groove 13, and this relief groove 13 runs through interior distolateral 121 and outer distolateral 122 of high pressure supporting surface 12;
Outer distolateral 112 of sealing face 11 closes on mutually with interior distolateral 121 of this high pressure supporting surface 12.
Be provided with a dashpot 14 between sealing surface 11 and high pressure supporting surface 12, this dashpot 14 is isolated with sealing surface 11 and high pressure supporting surface 12, and is communicated with valve pocket 50 by relief groove 13.
In the utility model, dashpot 14 has a V-arrangement section.Sealing surface 11 and high pressure supporting surface 12 are arc shaped surface, and with the spheroid 30 same centre ofs sphere.The length of the cross section arc of sealing surface 11 is less than the length of the cross section arc of high pressure supporting surface 12.The PTFE valve seat that valve seat 10 is formed in one.
The utility model in use, sealing surface 11 plays sealing effect all the time, when pressure increases promotion spheroid 30, high pressure supporting surface 12 plays the effect of supporting sephere 30, owing on high pressure supporting surface 12, be provided with relief groove 13, make high pressure supporting surface 12 to play a supporting role, and do not have seal action.Just because of setting up of this relief groove 13, even make under the situation of high pressure, can not form vacuum between high pressure supporting surface 12 and the spheroid 30 yet, and because the length of the cross section arc of sealing surface 11 is less, also can not form vacuum between it and the spheroid 30, thereby the situation of having stopped valve seat 10 and spheroid 30 lockings takes place, and no matter be under the high pressure or the situation of low pressure, can both be with less drive unit opening and closing valve, thus reduce production costs.
Above-mentioned only is an embodiment of the present utility model, but design concept of the present utility model is not limited thereto, such as, the number of relief groove 13 also can be more than one, can be more than two; The material of valve seat is PTFE not necessarily also, or the like.In a word, allly utilize this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (6)
1, a kind of valve seat of ball valve, this valve seat are located between the valve body and spheroid of ball valve, and this spheroid is separated into fluid chamber and valve pocket by valve seat with valve body, and this fluid chamber and valve pocket are isolated all the time, it is characterized in that this valve seat comprises:
One sealing surface, sealing face are sealed on the spheroid and the interior distolateral fluid chamber that closes on valve body of sealing face all the time;
One high pressure supporting surface, the outer distolateral valve pocket that closes on valve body of this high pressure supporting surface, this high pressure supporting surface is provided with at least one relief groove, and this relief groove runs through the interior distolateral and distolateral of high pressure supporting surface outward;
The interior distolateral of outer distolateral and this high pressure supporting surface of sealing face closes on mutually.
2, a kind of valve seat of ball valve according to claim 1 is characterized in that: be provided with a dashpot between described sealing surface and described high pressure supporting surface, this dashpot is isolated with sealing surface and high pressure supporting surface, and is communicated with described valve pocket by described relief groove.
3, as the valve seat of a kind of ball valve as described in the claim 2, it is characterized in that: described dashpot has a V-arrangement or channel section.
4, a kind of valve seat of ball valve according to claim 1, it is characterized in that: described sealing surface and described high pressure supporting surface are arc shaped surface, and with the same centre of sphere of described spheroid.
5, as the valve seat of a kind of ball valve as described in the claim 4, it is characterized in that: the length of the cross section arc of described sealing surface is less than the length of the cross section arc of described high pressure supporting surface.
6, as the valve seat of a kind of ball valve as described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: the PTFE valve seat that described valve seat is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202293685U CN201318469Y (en) | 2008-12-10 | 2008-12-10 | Valve seat of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202293685U CN201318469Y (en) | 2008-12-10 | 2008-12-10 | Valve seat of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318469Y true CN201318469Y (en) | 2009-09-30 |
Family
ID=41197234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202293685U Expired - Fee Related CN201318469Y (en) | 2008-12-10 | 2008-12-10 | Valve seat of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318469Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421447A (en) * | 2013-08-27 | 2015-03-18 | 上海纽京工业设备有限公司 | Ultra-high temperature multi-seal ball valve and machining method of valve seat sealing surface thereof |
| CN105508671A (en) * | 2016-02-02 | 2016-04-20 | 上海霍贝电机制造有限公司 | Valve structure suitable for liquefied gas steel cylinder intelligent control |
| CN105626892A (en) * | 2016-03-28 | 2016-06-01 | 福建上润精密仪器有限公司 | Valve seat structure of floating ball valve |
-
2008
- 2008-12-10 CN CNU2008202293685U patent/CN201318469Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421447A (en) * | 2013-08-27 | 2015-03-18 | 上海纽京工业设备有限公司 | Ultra-high temperature multi-seal ball valve and machining method of valve seat sealing surface thereof |
| CN104421447B (en) * | 2013-08-27 | 2016-10-19 | 上海纽京工业设备有限公司 | The many seal ball-valves of superhigh temperature and the processing method of sealing surface of seat thereof |
| CN105508671A (en) * | 2016-02-02 | 2016-04-20 | 上海霍贝电机制造有限公司 | Valve structure suitable for liquefied gas steel cylinder intelligent control |
| CN105508671B (en) * | 2016-02-02 | 2018-06-26 | 上海霍贝电机制造有限公司 | A kind of valve mechanism suitable for cylinder for liquefied gas intelligent control |
| CN105626892A (en) * | 2016-03-28 | 2016-06-01 | 福建上润精密仪器有限公司 | Valve seat structure of floating ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20111210 |