CN201250918Y - Dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve - Google Patents
Dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve Download PDFInfo
- Publication number
- CN201250918Y CN201250918Y CNU2007201151663U CN200720115166U CN201250918Y CN 201250918 Y CN201250918 Y CN 201250918Y CN U2007201151663 U CNU2007201151663 U CN U2007201151663U CN 200720115166 U CN200720115166 U CN 200720115166U CN 201250918 Y CN201250918 Y CN 201250918Y
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- valve
- stuffing
- temperature
- seal
- spheroid
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Abstract
The utility model discloses a dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve, which comprises a ball body that is arranged inside the valve body, wherein, both ends of the ball body are respectively connected with an end cover, and the upper end of the ball body is connected with a valve rod, and the valve rod is provided with a bracket, and an elastic groove valve seat component and a fixed disc are arranged between the ball body and the end covers; the elastic groove valve seat includes an elastic groove valve seat ring, a high-temperature obturating ring, a valve seat plunger ring and a valve seat spring which are tightly contacted with the ball body in turn, wherein, the valve seat spring is tightly contacted with the end covers; a stuffing gland bush component is arranged between the valve rod and the bracket, and the stuffing gland bush component comprises high-temperature stuffing that is arranged inside a stuffing box, and the upper end of the high-temperature stuffing is provided with a stuffing pressing sleeve and a stuffing pressure plate, and the stuffing pressure plate is provided with a double-screw bolt, a movable loading spring and a nut, and the other end of the double-screw bolt is connected with the stuffing box. The ball valve can ensure the sealing when the temperature difference is variable, and can be used under the work condition of high temperature and high pressure.
Description
Technical field
The utility model relates to a kind of metal to metal hard seal ball valve, what be specifically related to is that the two elasticity self-tightenings that are used for fluid switch control usefulness such as liquid, gas seal high-temperature ball valve firmly.
Background technique
Ball valve is the fluid control product that is widely used in the fields such as chemical industry, oil, electric power.Though general ball valve have double fluid to, flow resistance is little, keying is rapid, bear the high advantage of pressure reduction, but there are shortcomings such as non-refractory in general soft sealing ball valve, and general hard seal ball valve exists unlatching moment big, easy jam after use a period of time, shortcomings such as elevated-temperature seal poor performance, valve stem seal position leak outside easily.
The model utility content
The purpose of this utility model is narrow limitation and the shortcoming that has general soft sealing ball valve and general hard seal ball valve now for solving, and the two elasticity self-tightenings that provide a kind of and can bear High Pressure Difference, have two elasticity self-tightening sealing valve components and moving loading spring valve stem seal seal the High Temperature High Pressure ball valve firmly.
The purpose of this utility model is achieved in that two elasticity self-tightenings seal high-temperature ball valve firmly and comprise the spheroid that is positioned at valve body, the two ends of described spheroid are connected with end cap respectively, the upper end of described spheroid is connected with valve rod, described valve rod is provided with support, is respectively arranged with elastic groove valve component and fixed tray between described spheroid and the above-mentioned end cap; Described elastic groove valve component comprises elastic groove seat ring, elevated-temperature seal ring, valve seat trim ring and the seating spring that closely contacts successively with spheroid, and described seating spring closely contacts with end cap; Be provided with the Gland assembly between described valve rod and the described support, described Gland assembly comprises the high temperature filler that is arranged in the Stuffing box, described high temperature filler upper end is disposed with filler gland and hold-down grid, be disposed with double-screw bolt, moving loading spring and nut on the described hold-down grid, the other end of described double-screw bolt is connected with Stuffing box.
Compared with prior art, the beneficial effects of the utility model are:
(1) because the two fixed trays support up and down of spheroid quilt, when valve contract fully position, pipeline interior media pressure produces huge thrust on this spheroid, act on the end cap by fixed tray, avoided valve rod directly to bear huge thrust, valve rod only bears the pure torsional shear stress of opening/shutting valve, is out of shape little, thereby valve opening and closing is laborsaving, and long service life.
(2) the elastic groove valve component in the utility model ball valve provides good temperature difference dynamic compensation effect for valve, can both keep sealing when guaranteeing temperature rising and reduction, has eliminated the easily stuck defective of difference variation simultaneously.
(3) structure of the Gland that moving loading spring compresses has been adopted at the sealing position of valve rod in the utility model ball valve, all can seal when guaranteeing difference variation, in addition, because complete machine has adopted the valve seat of elevated-temperature seal ring, high temperature filler and metallic sealing section, therefore, the utility model ball valve can use under high temperature and high pressure condition.
Description of drawings
Fig. 1 is the structural representation of the utility model ball valve;
Fig. 2 be among Fig. 1 in the circle shown in the partial structurtes enlarged view of valve seat location.
Embodiment
Be described in further detail about structure and working principle of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the structure of the utility model ball valve is: this ball valve comprises the spheroid 2 that is positioned at valve body 1, and the two ends of described spheroid 2 are connected with end cap 8 respectively, is respectively arranged with elastic groove valve component and fixed tray 3 between described spheroid 2 and the above-mentioned end cap 8; As shown in Figure 2, described elastic groove valve component comprises elastic groove seat ring 4, elevated-temperature seal ring 5, valve seat trim ring 6 and the seating spring 7 that closely contacts successively with spheroid 2, the end face of described end cap 8 is provided with spring eye, described seating spring 7 is embedded in the hole, described seating spring 7 is closely contacted with end cap 8, sealing surface of seat is pressed on the sealing surface of spheroid 2 through seating spring 7 loadings.As shown in Figure 1, adopt pin to be connected between described fixed tray 3 and the end cap 8, i.e. two fixed trays with holes 3 were realized about the support of spheroid 2 was adopted.The upper end of described spheroid 2 is connected with valve rod 9, described valve rod 9 is provided with support 16, be provided with the Gland assembly between described valve rod 9 and the described support 16, described Gland assembly comprises the high temperature filler 10 that is arranged in the Stuffing box, described high temperature filler 10 upper ends are disposed with filler gland 11 and hold-down grid 12, be disposed with double-screw bolt 14, moving loading spring 13 and nut 15 on the described hold-down grid 12, the other end of described double-screw bolt 14 be connected with Stuffing box that valve body 1 is connected.
In sum, designed elastic groove seat ring 4 and two Dynamic Elastic compensation valve seat sealing configurations that seating spring 7 forms in the utility model ball valve especially, made ball valve import and export the valve seat formation two way sealed at two ends.In addition, also design the moving loading structure that ball valve rod seal position is arranged.
Working principle of the present utility model is: valve rod 9 is driven by actuator.When valve was in the contract fully position, spheroid 2 and two elastic seat assembly were formed import and export bivalve seat double fluid to sealing, cut off fluid and flow.When actuator's actuate valve stem 9 and spheroid 2, behind rotation 90 degree, valve wide open, fluid recovers circulation.In valve contract fully position, during actual the use because form the linear coefficient difference of expanding with heat and contract with cold of each component of valve, and exist temperature gradient, good sealing property when avoiding the stuck and high temperature of valve, two elasticity self-tightening sealing valve components have been designed, wherein, the first heavy elasticity is produced by seating spring 7, and the second heavy elasticity is produced by the elastic groove valve component.Whole valve component is made up of above-mentioned elastic groove seat ring 4, elevated-temperature seal ring 5, valve seat trim ring 6, seating spring 7, by spring-loaded on spheroid 2, produce enough initial pretightening unit sealing loads of low pressure, and when high pressure because in the pipeline when having hydrodynamic pressure P, according to pascal's principle, the diameter of valve seat elevated-temperature seal ring 5 also is that piston diameter is greater than the sealing surface average diameter, will produce a thrust promotion valve component acts on the spheroid 2, the design surface product moment is enough big to produce enough seal pressures, promptly produces enough seal pressures by piston effect.And when temperature variation is expanded with heat and contract with cold generation, because two elasticity self-tightening sealing valve components have the design of elasticity groove and seating spring 7, for valve provides good temperature difference dynamic compensation effect, can both keep sealing when guaranteeing temperature rising and reduction, eliminate the easily stuck defective of difference variation simultaneously.And at the valve stem seal position, the Gland assembly that design has adopted moving loading spring 13 to compress all can seal when guaranteeing difference variation.Because complete machine has adopted the valve seat of elevated-temperature seal ring 5, high temperature filler 10 and metallic sealing section, can use under high temperature and high pressure condition.
Claims (3)
1. two elasticity self-tightenings seal the High Temperature High Pressure ball valve firmly, comprise the spheroid that is positioned at valve body, and the two ends of described spheroid are connected with end cap respectively, and the upper end of described spheroid is connected with valve rod, and described valve rod is provided with support, it is characterized in that:
Be respectively arranged with elastic groove valve component and fixed tray between described spheroid and the above-mentioned end cap; Described elastic groove valve component comprises elastic groove seat ring, elevated-temperature seal ring, valve seat trim ring and the seating spring that closely contacts successively with spheroid, and described seating spring closely contacts with end cap; Be provided with the Gland assembly between described valve rod and the described support, described Gland assembly comprises the high temperature filler that is arranged in the Stuffing box, described high temperature filler upper end is disposed with filler gland and hold-down grid, be disposed with double-screw bolt, moving loading spring and nut on the described hold-down grid, the other end of described double-screw bolt is connected with Stuffing box.
2. according to claim 1 pair of elasticity self-tightening seals the High Temperature High Pressure ball valve firmly, it is characterized in that: adopt pin to be connected between described fixed tray and the end cap.
3. according to claim 1 pair of elasticity self-tightening seals the High Temperature High Pressure ball valve firmly, and it is characterized in that: the end face of described end cap is provided with spring eye, and described seating spring is embedded in the described spring eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151663U CN201250918Y (en) | 2007-09-17 | 2007-09-17 | Dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151663U CN201250918Y (en) | 2007-09-17 | 2007-09-17 | Dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250918Y true CN201250918Y (en) | 2009-06-03 |
Family
ID=40746591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201151663U Expired - Fee Related CN201250918Y (en) | 2007-09-17 | 2007-09-17 | Dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250918Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261488A (en) * | 2010-05-07 | 2011-11-30 | Spx公司 | Ball valve seat seal |
| CN102374307A (en) * | 2010-08-09 | 2012-03-14 | 阿尔特运输有限公司 | Shut-off valve for bowls with vaccum evacuation systems |
| CN102606774A (en) * | 2012-03-22 | 2012-07-25 | 意本阀门有限公司 | Pigging check valve |
| CN102758964A (en) * | 2012-07-11 | 2012-10-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN103032598A (en) * | 2011-10-03 | 2013-04-10 | 国民油井华高英国有限公司 | Valve and method of operating a valve |
| CN103335129A (en) * | 2013-07-16 | 2013-10-02 | 北京艾迪西暖通科技有限公司 | High-temperature high-pressure ball valve |
| CN103398189A (en) * | 2013-08-13 | 2013-11-20 | 天津诺威流体控制科技有限公司 | Subsea valve |
| CN103603964A (en) * | 2013-11-20 | 2014-02-26 | 无锡智能自控工程股份有限公司 | Online-maintainable butt-welding high-temperature high-pressure rapid cut-off steam ball valve |
| CN105370911A (en) * | 2015-11-27 | 2016-03-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Hard-sealing fast ball valve |
| CN105909821A (en) * | 2016-06-16 | 2016-08-31 | 五洲阀门股份有限公司 | High-temperature high-pressure rigidity seal ball valve |
-
2007
- 2007-09-17 CN CNU2007201151663U patent/CN201250918Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261488A (en) * | 2010-05-07 | 2011-11-30 | Spx公司 | Ball valve seat seal |
| CN102374307B (en) * | 2010-08-09 | 2015-06-17 | 阿尔特运输有限公司 | Shut-off valve for bowls with vaccum evacuation systems |
| CN102374307A (en) * | 2010-08-09 | 2012-03-14 | 阿尔特运输有限公司 | Shut-off valve for bowls with vaccum evacuation systems |
| CN103032598A (en) * | 2011-10-03 | 2013-04-10 | 国民油井华高英国有限公司 | Valve and method of operating a valve |
| CN103032598B (en) * | 2011-10-03 | 2016-09-28 | 国民油井华高英国有限公司 | Valve and the method for operation valve |
| CN102606774A (en) * | 2012-03-22 | 2012-07-25 | 意本阀门有限公司 | Pigging check valve |
| CN102758964A (en) * | 2012-07-11 | 2012-10-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN102758964B (en) * | 2012-07-11 | 2013-07-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN103335129A (en) * | 2013-07-16 | 2013-10-02 | 北京艾迪西暖通科技有限公司 | High-temperature high-pressure ball valve |
| CN103335129B (en) * | 2013-07-16 | 2015-07-29 | 北京艾迪西暖通科技有限公司 | High-temp and-pressure ball valve |
| CN103398189A (en) * | 2013-08-13 | 2013-11-20 | 天津诺威流体控制科技有限公司 | Subsea valve |
| CN103603964A (en) * | 2013-11-20 | 2014-02-26 | 无锡智能自控工程股份有限公司 | Online-maintainable butt-welding high-temperature high-pressure rapid cut-off steam ball valve |
| CN103603964B (en) * | 2013-11-20 | 2015-12-30 | 无锡智能自控工程股份有限公司 | Can on-line maintenance butt joint type High Temperature High Pressure fast shut-off steam ball valve |
| CN105370911A (en) * | 2015-11-27 | 2016-03-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Hard-sealing fast ball valve |
| CN105909821A (en) * | 2016-06-16 | 2016-08-31 | 五洲阀门股份有限公司 | High-temperature high-pressure rigidity seal ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Jiantian Document name: Notification to Make Rectification |
|
| 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: 20090603 Termination date: 20160917 |