CN203718010U - High-pressure ball valve - Google Patents
High-pressure ball valve Download PDFInfo
- Publication number
- CN203718010U CN203718010U CN201420033989.1U CN201420033989U CN203718010U CN 203718010 U CN203718010 U CN 203718010U CN 201420033989 U CN201420033989 U CN 201420033989U CN 203718010 U CN203718010 U CN 203718010U
- Authority
- CN
- China
- Prior art keywords
- valve
- inwall
- annular caulking
- seal ring
- spheroid
- 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 discloses a high-pressure ball valve. The high-pressure ball valve comprises a valve body, a bonnet, a ball and a valve stem. The valve body is provided with an inlet passage, an outlet passage and a spherical mounting cavity. The ball is mounted in the spherical mounting cavity, and the valve rod is fixedly connected with the ball. Each fitting surface of the spherical mounting cavity and the ball is provided with two annular caulking grooves, valve sealing rings are mounted in the annular caulking grooves and in close fit with the outer circumferential surface of the ball, and the center line of the valve sealing rings is superposed with the center line of the inlet passage and the center line of the outlet passage. A spring is arranged between the inner wall of each annular caulking groove and the corresponding valve sealing ring, each valve sealing ring is provided with a sealing ring mounting groove, and auxiliary sealing rings matched with the inner walls of the annular caulking grooves are mounted in the sealing ring mounting grooves. Accordingly, extrusion force between the ball and the sealing rings can be reduced, starting torque of the high-pressure ball valve can be decreased, compensation force of the sealing rings is increased, and the problem that sealing performance is compromised due to elasticity failure of the sealing rings is avoided.
Description
Technical field
The utility model relates to a kind of high-pressure ball valve, refers to especially on a kind of normal temperature high voltage pipeline being mainly arranged in natural gas filling station, is used for blocking or connecting the high-pressure ball valve of the medium in pipeline.
Background technique
Current high-pressure ball valve generally comprises valve body, spheroid and valve rod, and sphere installation coordinates with valve body in valve body and by seal ring; Valve rod is installed on spheroid and is fixed as one with spheroid; Valve rod stretches out with other automatic executing agencies or manual actuator and is connected from valve body; There is defect in right this ball valve: 1., owing to will having enough sealabilities between spheroid and seal ring, therefore spheroid can produce high-pressure extrusion for a long time to seal ring, and this just causes the rotation difficulty of spheroid large, and the unlatching torque ratio of high-pressure ball valve is larger; 2. due to seal ring and the long-term high-pressure extrusion of spheroid, seal ring is for a long time in deformation state so, and so easy generation elastic failure, causes the sealability between spheroid and seal ring to decline.
Model utility content
Technical problem to be solved in the utility model is: a kind of high-pressure ball valve is provided, when ensureing enough sealabilities, also can reduce this high-pressure ball valve the extruding force between spheroid and seal ring, reduce the unlatching moment of torsion of high-pressure ball valve, and increase the equilibrant force to seal ring, avoid seal ring to occur because elastic failure causes the phenomenon that sealability declines.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of high-pressure ball valve, comprise valve body, valve gap, spheroid and valve rod, on described valve body, be provided with inlet channel, outlet passage and spherical installation cavity, described sphere installation is in spherical installation cavity, and described valve rod is fixedly connected with spheroid; On the fitting surface of described spherical installation cavity and spheroid, be provided with two annular caulking grooves, in described annular caulking groove, valve seals is installed, described valve seals and spheroid outer circumferential face are sealed and matched, and the center line of described valve seals overlaps with the center line of the center line of inlet channel, outlet passage; Between the inwall of each annular caulking groove and corresponding valve seals, be provided with the spring that valve seals is drawn close to spheroid, on valve seals, be also provided with seal ring mounting groove, in sealing circle mounting groove, the auxiliary seal ring coordinating with the inwall of annular caulking groove be installed.
As the preferred scheme of one, the cross section of described annular caulking groove is rectangle, and this annular caulking groove comprises an end inwall vertical with the center line of inlet channel, an inner side inwall that the outside inwall vertical with end inwall is vertical with end inwall with.
As the preferred scheme of one, described spring is butterfly spring, and center overlaps with the center line of inlet channel, and this butterfly spring is installed between end inwall and valve seals.
As the preferred scheme of one, described auxiliary seal ring is installed between the outside inwall of seal ring mounting groove and annular caulking groove.
As the preferred scheme of one, on the outside inwall of described annular caulking groove, be provided with several installing blinds, the auxiliary Compress Spring that is pressed in advance valve seals is installed in this installing blind.
As the preferred scheme of one, described auxiliary seal ring is installed between end inwall and seal ring mounting groove or is installed between inner side inwall and seal ring mounting groove, on the outside inwall of described annular caulking groove, be provided with several installing blinds, described spring precompression is installed between installing blind and valve seals.
Adopt after technique scheme, effect of the present utility model is: owing to being provided with the spring that valve seals is drawn close to spheroid between the inwall of the each annular caulking groove of this high-pressure ball valve and corresponding valve seals, this spring will produce equilibrant force to valve seals, in the time of valve seals elastic failure, utilize the elastic force of this spring also can continue to make tight seal between valve seals and spheroid; And arranging of auxiliary seal ring increased sealing together, and auxiliary seal ring be sealed into static seal, sealing is more reliable, thus the extruding force between reduction valve seals that can be suitable and spheroid, thereby in ensuring enough sealings, reduce the unlatching moment of torsion of ball valve.
Again because described spring is butterfly spring, and center overlaps with the center line of inlet channel, this butterfly spring is installed between end inwall and valve seals, therefore, this butterfly spring will produce to an elastic force valve seals, even if this elastic force impels valve seals elastic failure still can push spheroid, thereby has ensured sealing.
Again because described auxiliary seal ring is installed between the outside inwall of seal ring mounting groove and annular caulking groove, even if the elastic force of butterfly spring makes seal ring draw close and produce displacement to spheroid, auxiliary seal ring still can effectively ensure sealing, and therefore, the sealing of ball valve improves greatly.
On outside inwall due to described annular caulking groove, be provided with several installing blinds again, the auxiliary Compress Spring that is pressed in advance valve seals is installed in this installing blind, therefore, this valve seals has just been received the elastic force of parallel inlet channel center line and the elastic force perpendicular to inlet channel center line, these two elastic force all produce adequate remedy power to valve seals, and the sealing of ball valve is further improved.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model embodiment's structure sectional view;
Fig. 2 is the enlarged diagram of Fig. 1 at I place;
In figure: 1. valve body 1; 11. inlet channeles 11; 12. outlet passages 12; 13. annular caulking grooves 13; 131. inner side inwalls 131; 132. end inwalls 132; 133. outside inwalls 133; 2. spheroid 2; 3. valve rod 3; 4. valve seals 4; 5. butterfly spring 5; 6. auxiliary seal ring; 7. auxiliary Compress Spring 7.
Embodiment
Below by specific embodiment, the utility model is described in further detail.
Upper and lower, left and right described in the utility model are determined vertically and upward time with valve rod 3.
Embodiment 1
As shown in Figure 1, 2, a kind of high-pressure ball valve, comprise valve body 1, valve gap, spheroid 2 and valve rod 3, on described valve body 1, be provided with inlet channel 11, outlet passage 12 and spherical installation cavity, described spheroid 2 is installed in spherical installation cavity, is provided with the connecting passage that inlet channel 11 is communicated with outlet passage 12 on this spheroid 2; Described valve rod 3 is fixedly connected with spheroid 2; Valve rod 3 rotates and will drive spheroid 2 to rotate, thereby realizes being communicated with or cut-off between inlet channel 11 and outlet passage 12.On the fitting surface of described spherical installation cavity and spheroid 2, be provided with two annular caulking grooves 13, in described annular caulking groove 13, valve seals 4 is installed, described valve seals 4 is sealed and matched with spheroid 2 outer circumferential faces, and the center line of described valve seals 4 overlaps with the center line of inlet channel 11, the center line of outlet passage 12; Between the inwall of each annular caulking groove 13 and corresponding valve seals 4, be provided with the spring that valve seals 4 is drawn close to spheroid 2, on valve seals 4, be also provided with seal ring mounting groove, the auxiliary seal ring 6 coordinating with the inwall of annular caulking groove 13 is installed in sealing circle mounting groove.
Wherein, in the present embodiment, the cross section of described annular caulking groove 13 is rectangle, and this annular caulking groove 13 comprises an end inwall vertical with the center line of inlet channel 11 132, the outside inwall 133 vertical with an end inwall 132 inner side inwall 131 vertical with end inwall 132 with.And described spring selects butterfly spring 5, and center overlaps with the center line of inlet channel 11, and this butterfly spring 5 is installed between end inwall 132 and valve seals 4.Described auxiliary seal ring 6 is now installed between seal ring mounting groove and the outside inwall 133 of annular caulking groove 13.And in order to make equilibrant force enough, on the outside inwall 133 of described annular caulking groove 13, be provided with several installing blinds, the auxiliary Compress Spring 7 that is pressed in advance valve seals 4 is installed in this installing blind.Like this, butterfly spring 5 produces to the valve seals 4 of both sides the level compensating power of pointing to spheroid 2; Auxiliary Compress Spring 7 produces to valve seals 4 the vertical equilibrant force that points to spheroid 2, in the time there is deformation failure in valve seals 4, these two equilibrant forces can compensate in acting in conjunction, guarantee sealing, this auxiliary seal ring 6 is by static seal between valve seals 4 and outside inwall 133, and sealing effect is better more stable.
Embodiment 2
This embodiment and embodiment's 1 structure is basic identical, just produce spring position difference and the kind difference of equilibrant force, in the present embodiment, described auxiliary seal ring 6 is installed between end inwall 132 and seal ring mounting groove or is installed between inner side inwall 131 and seal ring mounting groove, on the outside inwall 133 of described annular caulking groove 13, be provided with several installing blinds, described spring precompression is installed between installing blind and valve seals 4.Equally, spring produces the elastic force of ecto-entad to valve seals 4, and this elastic force produces a compensation component and makes to closely cooperate between valve seals 4 and spheroid 2; Meanwhile, if auxiliary seal ring 6 is arranged on the inwall 131 of inner side, this elastic force also can produce an aux. pressure to auxiliary seal ring 6, thereby makes the sealing effect of auxiliary seal ring 6 better.Structure in the present embodiment can produce equilibrant force equally, therefore, can realize equally problem to be solved in embodiment 1.
The inlet channel 11 of this high-pressure ball valve can only not served as entrance, this high-pressure ball valve can left and right two-way flow, therefore, inlet channel 11 can also use as outlet passage.
Claims (6)
1. a high-pressure ball valve, comprises valve body, valve gap, spheroid and valve rod, is provided with inlet channel, outlet passage and spherical installation cavity on described valve body, and described sphere installation is in spherical installation cavity, and described valve rod is fixedly connected with spheroid; It is characterized in that: on the fitting surface of described spherical installation cavity and spheroid, be provided with two annular caulking grooves, in described annular caulking groove, valve seals is installed, described valve seals and spheroid outer circumferential face are sealed and matched, and the center line of described valve seals overlaps with the center line of the center line of inlet channel, outlet passage; Between the inwall of each annular caulking groove and corresponding valve seals, be provided with the spring that valve seals is drawn close to spheroid, on valve seals, be also provided with seal ring mounting groove, in sealing circle mounting groove, the auxiliary seal ring coordinating with the inwall of annular caulking groove be installed.
2. a kind of high-pressure ball valve as claimed in claim 1, it is characterized in that: the cross section of described annular caulking groove is rectangle, this annular caulking groove comprises an end inwall vertical with the center line of inlet channel, an inner side inwall that the outside inwall vertical with end inwall is vertical with end inwall with.
3. a kind of high-pressure ball valve as claimed in claim 2, is characterized in that: described spring is butterfly spring, and center overlaps with the center line of inlet channel, and this butterfly spring is installed between end inwall and valve seals.
4. a kind of high-pressure ball valve as claimed in claim 3, is characterized in that: described auxiliary seal ring is installed between the outside inwall of seal ring mounting groove and annular caulking groove.
5. a kind of high-pressure ball valve as claimed in claim 4, is characterized in that: on the outside inwall of described annular caulking groove, be provided with several installing blinds, the auxiliary Compress Spring that is pressed in advance valve seals is installed in this installing blind.
6. a kind of high-pressure ball valve as claimed in claim 2, it is characterized in that: described auxiliary seal ring is installed between end inwall and seal ring mounting groove or is installed between inner side inwall and seal ring mounting groove, on the outside inwall of described annular caulking groove, be provided with several installing blinds, described spring precompression is installed between installing blind and valve seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033989.1U CN203718010U (en) | 2014-01-21 | 2014-01-21 | High-pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033989.1U CN203718010U (en) | 2014-01-21 | 2014-01-21 | High-pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718010U true CN203718010U (en) | 2014-07-16 |
Family
ID=51157161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033989.1U Expired - Fee Related CN203718010U (en) | 2014-01-21 | 2014-01-21 | High-pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775673A (en) * | 2014-01-21 | 2014-05-07 | 张家港富瑞特种装备股份有限公司 | High-pressure spherical valve |
| CN109458467A (en) * | 2018-10-09 | 2019-03-12 | 电建阀门有限公司 | A kind of coal changes gas ball-valve dedicated |
-
2014
- 2014-01-21 CN CN201420033989.1U patent/CN203718010U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775673A (en) * | 2014-01-21 | 2014-05-07 | 张家港富瑞特种装备股份有限公司 | High-pressure spherical valve |
| CN109458467A (en) * | 2018-10-09 | 2019-03-12 | 电建阀门有限公司 | A kind of coal changes gas ball-valve dedicated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20190121 |