CN202867907U - Polycrystalline silicon special ball valve - Google Patents
Polycrystalline silicon special ball valve Download PDFInfo
- Publication number
- CN202867907U CN202867907U CN 201220438205 CN201220438205U CN202867907U CN 202867907 U CN202867907 U CN 202867907U CN 201220438205 CN201220438205 CN 201220438205 CN 201220438205 U CN201220438205 U CN 201220438205U CN 202867907 U CN202867907 U CN 202867907U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- ball
- auxiliary
- ball core
- 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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- Sealing Devices (AREA)
Abstract
The utility model discloses a polycrystalline silicon special ball valve which comprises a main valve body (1) and an auxiliary valve body (2). A gland box (17) is positioned at the upper end of the main valve body (1), a bottom shaft cover (33) is arranged at the lower end of the main valve body (1), a valve seat (3) is arranged in the auxiliary valve body (2), a ball core (10) is arranged in the middle of the main valve body (1), a valve rod (11) is arranged above the ball core (10), a cylindrical spring (6) is arranged between the valve seat (3) and the auxiliary valve body (2), sealing gaskets are arranged on two sides of a press ring (17) of the cylindrical spring (6), valve seat assemblies (8) are arranged on the outer sides of the sealing gaskets, a first slide bearing (12) is arranged between the valve rod (11) and the lower end of the gland box (17), and a second slide bearing (34) is arranged between the bottom shaft cover (33) and the ball valve (10). The polycrystalline silicon special ball valve has the advantages of being reasonable in structural design, good in sealing performance, long in service life of the spring, capable of reasonably using self lubrication bearing and safe and reliable.
Description
Technical field
The utility model relates to valve, is specifically related to a kind of polysilicon ball-valve dedicated.
Background technique
The existing ball-valve structure simplicity of design that is applied in polycrystalline silicon medium, the valve base sealing reliability is little, is unsuitable for the High Temperature High Pressure occasion, is prone to kill the risk that phenomenon and spring follow the string.Specifically have following problem: one, existing common 3 stops ball valve also exists cylindrical spring to expose drawback at working medium when realizing the floating valve seat function, has shortened the working life of valve seat and cylindrical spring, the phenomenon that also might occur revealing.Two, existing common 3 stops ball valve uses metal bearing in the joint of lower shaft lid and ball core more, adopt metal bearing can exist frictional force larger, moment of torsion is larger, once operating mode is when more abominable, when the particle in the medium and powder enter into relative gap, just might there be stuck phenomenon.Three, existing common 3 stops ball valve also uses metal bearings in the joint of valve rod and ball core more, and such contact equally also keeps away the appearance of unavoidable problem two.Four, existing common 3 stops ball valve adopts belleville spring to come the pretension filler to reach sealing herein at this piece of packing seal more, although originally such sealing means may reach sealing effect, once service time permanent words, belleville spring probably will exist it to lose its original intrinsic elasticity, will inevitably cause leaking once apply working medium pressure.Five, existing common 3 stops ball valve adopts O type circle to reach sealing effect more, has the narrow limitation of applicable working condition.
The model utility content
For present ball valve shortcoming, the utility model provides a kind of novel polysilicon ball-valve dedicated.
To achieve these goals, the utility model institute Adopts measure:
A kind of polysilicon ball-valve dedicated, the auxiliary valve body that comprises main valve body and both sides thereof, the main valve body upper end is provided with Stuffing box, the main valve body lower end is provided with the lower shaft lid, be provided with valve seat in the auxiliary valve body, the main valve body middle part is provided with the ball core that matches with the both sides auxiliary valve body, ball core top is provided with valve rod, between valve seat and auxiliary valve body, be provided with cylindrical spring, the trim ring both sides that cylindrical spring is installed are provided with gasket seal, and the gasket seal outside is provided with valve component, is provided with sliding bearing one between valve rod and the Stuffing box underpart, be provided with sliding bearing two between lower shaft lid and the ball core, be provided with filling system between valve rod and the Stuffing box upper end.
The surface of contact of valve seat and ball core all scribbles the WC-Co-Cr powder.
Sliding bearing one and sliding bearing two are carbon graphite bearing.
Gasket seal is comprised of 316L and Expanded graphite.
Filling system is comprised of annular flexible graphite and tapered collar wire.
The beneficial effects of the utility model: reasonable in design, good seal performance, the spring long service life is rationally utilized self oiling bearing, and is safe and reliable.
Description of drawings
Fig. 1, structural representation of the present utility model.
Embodiment
A kind of polysilicon ball-valve dedicated, the auxiliary valve body 2 that comprises main valve body 1 and both sides thereof, main valve body 1 upper end is provided with Stuffing box 17, main valve body 1 lower end is provided with lower shaft lid 33, be provided with valve seat 3 in the auxiliary valve body 2, main valve body 1 middle part is provided with the ball core 10 that matches with both sides auxiliary valve body 2, ball core 10 tops are provided with valve rod 11, between valve seat 3 and auxiliary valve body 2, be provided with cylindrical spring 6, trim ring 7 both sides that cylindrical spring 6 is installed are provided with gasket seal, and the gasket seal outside is provided with valve component 8, is provided with sliding bearing 1 between valve rod 11 and Stuffing box 17 underparts, be provided with sliding bearing 2 34 between lower shaft lid 33 and the ball core 10, be provided with filling system between valve rod 11 and Stuffing box 17 upper ends; Valve seat 3 all scribbles the WC-Co-Cr powder with the surface of contact of ball core 10; Sliding bearing 1 and sliding bearing 2 34 are carbon graphite bearing; Gasket seal is comprised of 316L and Expanded graphite; Filling system is comprised of annular flexible graphite and tapered collar wire.The beneficial effects of the utility model: reasonable in design, good seal performance, the spring long service life is rationally utilized self oiling bearing, and is safe and reliable.
Those skilled in the art's simple change and replacement all are within the protection domain of the present utility model in related domain.
Claims (3)
1. polysilicon ball-valve dedicated, the auxiliary valve body (2) that comprises main valve body (1) and both sides thereof, main valve body (1) upper end is provided with Stuffing box (17), main valve body (1) lower end is provided with lower shaft lid (33), be provided with valve seat (3) in the auxiliary valve body (2), main valve body (1) middle part is provided with the ball core (10) that matches with both sides auxiliary valve body (2), ball core (10) top is provided with valve rod (11), it is characterized in that, between valve seat (3) and auxiliary valve body (2), be provided with cylindrical spring (6), trim ring (7) both sides that cylindrical spring (6) is installed are provided with gasket seal, the gasket seal outside is provided with valve component (8), be provided with sliding bearing one (12) between valve rod (11) and Stuffing box (17) underpart, be provided with sliding bearing two (34) between lower shaft lid (33) and the ball core (10), be provided with filling system between valve rod (11) and Stuffing box (17) upper end.
2. a kind of polysilicon ball-valve dedicated according to claim 1 is characterized in that, valve seat (3) all scribbles the WC-Co-Cr powder with the surface of contact of ball core (10).
3. a kind of polysilicon ball-valve dedicated according to claim 1 is characterized in that, sliding bearing one (12) and sliding bearing two (34) are carbon graphite bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438205 CN202867907U (en) | 2012-08-30 | 2012-08-30 | Polycrystalline silicon special ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438205 CN202867907U (en) | 2012-08-30 | 2012-08-30 | Polycrystalline silicon special ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867907U true CN202867907U (en) | 2013-04-10 |
Family
ID=48034628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220438205 Expired - Fee Related CN202867907U (en) | 2012-08-30 | 2012-08-30 | Polycrystalline silicon special ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818042A (en) * | 2012-08-30 | 2012-12-12 | 科普蓝(上海)阀门工业有限公司 | Ball valve special for polycrystalline silicon |
-
2012
- 2012-08-30 CN CN 201220438205 patent/CN202867907U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818042A (en) * | 2012-08-30 | 2012-12-12 | 科普蓝(上海)阀门工业有限公司 | Ball valve special for polycrystalline silicon |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201323 Shanghai city Pudong New Area Zhuqiao gold Lianglu No. 32 Building 2 floor Patentee after: More research (Shanghai) valve industry Co. Ltd. Address before: 201323 Shanghai city Pudong New Area Zhuqiao gold Lianglu No. 32 Building 2 floor Patentee before: Copeland (Shanghai) Valve Industry Co., Ltd. |
|
| 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: 20130410 Termination date: 20170830 |