CN203868397U - Hard seal fixed type ball valve - Google Patents
Hard seal fixed type ball valve Download PDFInfo
- Publication number
- CN203868397U CN203868397U CN201420309263.6U CN201420309263U CN203868397U CN 203868397 U CN203868397 U CN 203868397U CN 201420309263 U CN201420309263 U CN 201420309263U CN 203868397 U CN203868397 U CN 203868397U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- seal ring
- spheroid
- waveform
- 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
Links
Landscapes
- Lift Valve (AREA)
Abstract
A hard seal fixed type ball valve comprises a connecting body, a valve cover, a valve rod, a valve seat, a valve seat inner seal ring, a valve seat spring, a valve seat outer seal ring, a valve body, an exhaust valve, a fixed shaft, a composite bearing and a ball body. A combined sealing structure is arranged at the lower portion of the valve rod. A metal elastic dual-compensation structure is arranged inside the valve seat and is composed of the valve seat inner seal ring, the valve seat spring, the valve seat outer seal ring and a pressing ring. The valve seat inner seal ring and the valve seat outer seal ring are waveform spring rings. The waveform of the valve seat inner seal ring and the waveform of the valve seat outer seal ring are combined with each other in a staggered mode. A valve seat elastic dual-compensation seal ring is composed of the valve seat inner seal ring and the valve seat outer seal ring. The front side of the valve seat and the rear side of the valve seat are provided with scraping blades. The surface, making contact with the ball body, of the valve seat is designed into an arc structure. The surface of the ball body and the surface of the valve seat are provided with super-hardness coatings, and therefore hardness of the ball body is enhanced, and wear resistance and scouring resistance are achieved; the ball valve is small in torque, good in sealing performance, resistant to high temperature and wear, easy to close and open and long in service life.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of hard sealing and fixing type ball valve, and the ambient conditionss such as the compensation of metallic elastic the valve seat insert temperature difference, pressure and wearing and tearing, eliminate valve seat and valve body generation bite phenomenon.
Background technique
At present, metal hard-sealing ball valve, as a kind of parts that are used for realizing pipe-line system break-make and flow control, obtains applying very widely in many fields such as oil, chemical industry, metallurgy, water power.Because valve is at ordinary times in closed condition, as long as valve is not leak, the temperature of valve can be lower so, valve in the time opening, high temperature, granule medium operating mode complexity, valve ball valve seat is because the reason of high-temperature material heats up rapidly, but the speed of the intensification of valve body is less than the speed of valve ball and valve seat, causes the thermal expansion of valve ball and valve seat to exceed the fit tolerance between valve seat and valve body, thereby bite occurs, need to stop line and rest and reorganize, cause economic loss to user.
Model utility content
For the deficiency of existing product design, the utility model provides a kind of hard sealing and fixing type ball valve, comprises connecting body, valve gap, valve rod, valve seat, valve seat inner seal ring, seating spring, valve seat exterior seal ring, valve body, outlet valve, stationary axle, composite bearing, spheroid.
The utility model solves the technological scheme that its technical problem adopts: stem lower portion is provided with combined sealing structure, valve seat inner side is provided with metallic elastic double compensator structure, metallic elastic double compensator structure is made up of valve seat inner seal ring, seating spring, valve seat exterior seal ring, pressure ring, in valve seat, exterior seal ring is metal waveform bullet circle, the waveform of the exterior seal ring combination that misplaces mutually in valve seat, exterior seal ring formation valve seat elasticity double compensator seal ring in valve seat; Before and after valve seat, be provided with scraping blade, the surface design that valve seat contacts with spheroid is camber line structure; Spheroid, valve base surface are provided with superhardness coating, strengthen the hardness of spheroid, reach effect wear-resisting, antiscour.
The beneficial effects of the utility model are: the torque of ball valve is little, and good seal performance is high temperature resistant, wear-resisting, open and close easily long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure, 1, connecting body, 2, valve gap, 3, valve rod, 4, valve seat, 5, valve seat inner seal ring, 6, seating spring, 7, valve seat exterior seal ring, 8, valve body, 9, outlet valve, 10, stationary axle, 11, composite bearing, 12, spheroid.
Embodiment
As shown in the figure, the utility model patent comprises connecting body 1, valve gap 2, valve rod 3, valve seat 4, valve seat inner seal ring 5, seating spring 6, valve seat exterior seal ring 7, valve body 8, outlet valve 9, stationary axle 10, composite bearing 11, spheroid 12, whole valve is three stage structure, connecting body 1 is established at valve body 8 two ends, valve body 8 is with connecting body 1 for flange-type is connected, and valve body 8 lumen outsides arrange an outlet valve 9; Valve rod 3 is installed on spheroid 12 tops, and valve rod 3 is connected with actuator through valve gap 2, and valve rod 3 bottoms are provided with combined sealing structure, have both had auto-compensation polishing machine, can realize again safety on line maintenance with pressure; Spheroid 12 bottoms are provided with groove, and at the bottom of ball, groove is square structure, are provided with composite bearing 11 in groove, and stationary axle 10 one end are connected to the composite bearing 11 in groove, and stationary axle 10 the other ends connect valve body 8 bottoms; Valve seat 4 inner sides are provided with metallic elastic double compensator structure, metallic elastic double compensator structure is made up of valve seat inner seal ring 5, seating spring 6, valve seat exterior seal ring 7, pressure ring, in valve seat, exterior seal ring is metal waveform bullet circle, the waveform of the exterior seal ring combination that misplaces mutually in valve seat, in valve seat, exterior seal ring forms valve seat elasticity double compensator seal ring and seating spring 6 support forces, poppet-valve seat 4 is resiliently deformable in the time of spheroid 12 expanded by heating, makes that spheroid 12 is unlikely blocks akinesia; Valve seat 4 front and back are provided with scraping blade, and the surface design that valve seat 4 contacts with spheroid 12 is camber line structure, realize spheroid 12 adsorption things and play scraping cleaning action, ensure that spheroid 12 and valve seat 4 sealing pairs are not destroyed simultaneously, improve sealability; Spheroid 12, valve seat 4 surfaces are provided with superhardness coating, strengthen the hardness of spheroid 12, reach effect wear-resisting, antiscour, are widely used in the operating modes such as particle media such as steel ash, coal dust, silica flour and alumina powder.
Claims (2)
1. a hard sealing and fixing type ball valve, comprise connecting body, valve gap, valve rod, valve seat, valve seat inner seal ring, seating spring, valve seat exterior seal ring, valve body, outlet valve, stationary axle, composite bearing, spheroid, it is characterized in that: stem lower portion is provided with combined sealing structure, valve seat inner side is provided with metallic elastic double compensator structure, metallic elastic double compensator structure is by valve seat inner seal ring, seating spring, valve seat exterior seal ring, pressure ring composition, in valve seat, exterior seal ring is metal waveform bullet circle, before and after valve seat, be provided with scraping blade, the surface design that valve seat contacts with spheroid is camber line structure, spheroid, valve base surface is provided with superhardness coating.
2. hard sealing and fixing type ball valve according to claim 1, is characterized in that: the waveform of the exterior seal ring combination that misplaces mutually in described valve seat, exterior seal ring formation valve seat elasticity double compensator seal ring in valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309263.6U CN203868397U (en) | 2014-06-04 | 2014-06-04 | Hard seal fixed type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309263.6U CN203868397U (en) | 2014-06-04 | 2014-06-04 | Hard seal fixed type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868397U true CN203868397U (en) | 2014-10-08 |
Family
ID=51649352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309263.6U Expired - Fee Related CN203868397U (en) | 2014-06-04 | 2014-06-04 | Hard seal fixed type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842629A (en) * | 2017-12-01 | 2018-03-27 | 中亚阀门有限公司 | A kind of compound dual low temperature resistant ball valve |
| CN110107711A (en) * | 2019-05-29 | 2019-08-09 | 河北硕煜科技有限公司 | It is a kind of can Linear Control flow regulation ball valve |
| CN110725967A (en) * | 2019-09-07 | 2020-01-24 | 圣博莱阀门有限公司 | Metal seal valve seat and wear-resisting ball valve |
-
2014
- 2014-06-04 CN CN201420309263.6U patent/CN203868397U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842629A (en) * | 2017-12-01 | 2018-03-27 | 中亚阀门有限公司 | A kind of compound dual low temperature resistant ball valve |
| CN110107711A (en) * | 2019-05-29 | 2019-08-09 | 河北硕煜科技有限公司 | It is a kind of can Linear Control flow regulation ball valve |
| CN110107711B (en) * | 2019-05-29 | 2023-11-24 | 河北硕煜科技有限公司 | Adjustable ball valve capable of linearly controlling flow |
| CN110725967A (en) * | 2019-09-07 | 2020-01-24 | 圣博莱阀门有限公司 | Metal seal valve seat and wear-resisting ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203868397U (en) | Hard seal fixed type ball valve | |
| CN202402688U (en) | Forced seal ball valve | |
| CN203847747U (en) | High-performance C-shaped abrasion-resistant ball valve | |
| CN201028043Y (en) | Wear-resistant metal hard sealing ball valve | |
| CN101581375A (en) | Metal hard seal ball valve | |
| CN204755985U (en) | Wear resistant ball valve | |
| CN202195103U (en) | Ball valve of metal hard sealing body valve seat | |
| CN203239986U (en) | Integrated type high performance partitioning valve | |
| CN201547300U (en) | Metal hard-seal ball valve | |
| CN102537400A (en) | Anti-crystallization anti-scaling abrasion-resisting ball valve | |
| CN204852428U (en) | Titanium material ball valve sealed firmly | |
| CN203202254U (en) | Double-eccentric and bidirectional metallic seal butterfly valve | |
| CN201973271U (en) | Crystallizing-resistant and scaling-resistant wear-resisting ball valve | |
| CN204284517U (en) | A kind of Wear-resistant, high-temperature resistant ball valve | |
| CN107917205A (en) | A kind of soft seal three-eccentric-butterfly-valve | |
| CN104343992A (en) | High-temperature pulse reversing valve | |
| CN205225143U (en) | Scour prevention's geothermol power well head assembly | |
| CN204961867U (en) | Power station is with novel high temperature high pressure sluice valve | |
| CN201100444Y (en) | Ball valve with metal hard sealing body valve base | |
| CN211344034U (en) | Mechanical sealing device of vapor compressor | |
| CN203477415U (en) | Top-entry type ball valve | |
| CN202946712U (en) | Valve seat of ball valve and ball valve comprising the same | |
| CN201715019U (en) | Sealed ball valve | |
| CN201944322U (en) | Hard sealed ball valve | |
| CN201547303U (en) | High-pressure hard sealed ball valve |
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 |
Granted publication date: 20141008 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |