CN201391632Y - Special-purpose super wear-resistant ball valve for solar-grade polysilicon - Google Patents
Special-purpose super wear-resistant ball valve for solar-grade polysilicon Download PDFInfo
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- CN201391632Y CN201391632Y CN200920117931U CN200920117931U CN201391632Y CN 201391632 Y CN201391632 Y CN 201391632Y CN 200920117931 U CN200920117931 U CN 200920117931U CN 200920117931 U CN200920117931 U CN 200920117931U CN 201391632 Y CN201391632 Y CN 201391632Y
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- valve
- valve seat
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- valve body
- sealing
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Abstract
The utility model relates to a special-purpose super wear-resistant ball valve for solar-grade polysilicon. The special-purpose super wear-resistant ball valve comprises a valve body, a valve seat, a ball body, a valve rod, a driving mechanism, a sealing element and a mounting piece, wherein the surfaces of the valve seat and the ball body are sprayed with tungsten carbide material, a powder cleaning mechanism is arranged on the periphery of the sealing surface of the valve seat, a spring cavity and a spring are arranged between the valve seat and the valve body, purging devices are respectively manufactured between the valve body on two sides of a sealing pair and a channel and between the valve body and a valve cavity, the surfaces of the ball body and the channel of the valve body are respectively sprayed with tungsten carbide wearing layers for reducing the abrasion of the sealing pair and preventing medium from scouring and damaging the sealing pair, and the special-purpose super wear-resistant ball valve has the advantages of scouring resistance, wear resistance, reliable sealing performance and long service life, and is suitable for work conditions of wear medium.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of hard seal ball valve.The utility model is applicable to the valve of high temperature, wearing and tearing, Korrosionsmedium pipeline.
Background technique
Under the solar-grade polysilicon operating mode because the medium of carrying is the high temperature silica flour, have very strong wash away, abrasiveness, traditional metal seal ball valve, its sealing pair is generally the Si Taili Hardmetal materials, can be washed away, wear and tear very soon in the high temperature silica flour, and working life is very low.In order to solve the wear problem of ball valve, adopt at spheroid and valve base surface sprayed wc material, improve the abrasion resistance properties of sealing pair.But in the solar-grade polysilicon operating mode, its high temperature silica flour is very easy to stick to spherome surface, easily makes the sealing pair scratch cause seal leakage during switch.In addition, silica flour can wash away the fluid passage of valve seat and spheroid, causes sealing pair to damage, and makes seal failure.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, provides a kind of and anti-ly washes away, wear-resistant, and sealability is reliable, the special-purpose super wear resistance ball valve of the solar-grade polysilicon of long service life.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, driving mechanism, Sealing and assembling set, valve seat and spherome surface sprayed wc material, be provided with powder in the sealing surface of seat periphery and remove mechanism, be provided with spring chamber and spring between valve seat and the valve body, mainly be to be shaped on blowing cleaner respectively between the valve body of sealing pair both sides and passage and valve pocket, spheroid and valve channel surface be the sprayed wc wearing layer respectively.
In above technological scheme, dust-proof seal ring is set respectively between the valve seat of spring chamber both sides and the valve body.
The utility model beneficial effect compared with prior art is: blowing cleaner is blown into the powder that pressurized gas will be deposited in valve seat and spherome surface and purges when valve opening and closing, the double-deck scraper that makes powder remove mechanism is easier to strike off the silica flour of bonding spherome surface, reduce the wearing and tearing of sealing pair, simultaneously, spheroid and the equal sprayed wc wearing layer of passage that valve body contacts with medium prevent that medium from washing away the damage sealing pair, have anti-ly wash away, wear-resistant, sealability is reliable, advantages such as long service life.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Fig. 2 is a valve seat construction partial enlarged drawing among the utility model Fig. 1.
Fig. 3 is the partial enlarged drawing of sealing pair among the utility model Fig. 2.
Embodiment
The special-purpose super wear resistance ball valve of solar-grade polysilicon as shown in Figure 1, comprise valve body 3, valve seat 5, spheroid 4, valve rod 2, driving mechanism 1, Sealing and assembling set, valve seat 5 and spheroid 4 surperficial sprayed wc materials, be provided with powder in valve seat 5 sealing surface peripheries and remove mechanism 9, this powder is removed the scraper of mechanism 9 for being provided with on the valve seat, strikes off the silica flour on bonding spheroid 4 surfaces when valve opening and closing.Be provided with spring chamber and spring 7 between valve seat 5 and the valve body 3, valve seat 5 can be floated, it is stuck to prevent that high temperature from expanding.Between the valve body 3 of sealing pair both sides and passage and valve pocket, be shaped on blowing cleaner 8 respectively, described blowing cleaner 8 is for making the purge hole that leads to valve seat 5 passages and valve pocket on valve body 3, the sealing plug screw is set in purge hole, when valve opening and closing, is blown into the powder that pressurized gas will be deposited in valve seat 5 and spheroid 4 surfaces and purges from purge hole.Spheroid 4 and valve body 3 channel surfaces are the sprayed wc wearing layer respectively, prevents medium washing away passage.Between the valve seat 5 of spring chamber both sides and valve body 3, dust-proof seal ring 6 is set respectively, prevents that silica flour from entering spring chamber spring 7 was lost efficacy.
Claims (2)
1, the special-purpose super wear resistance ball valve of a kind of solar-grade polysilicon, comprise valve body (3), valve seat (5), spheroid (4), valve rod (2), driving mechanism (1), Sealing and assembling set, valve seat (5) and the surperficial sprayed wc material of spheroid (4), be provided with powder in valve seat (5) sealing surface periphery and remove mechanism (9), be provided with spring chamber and spring (7) between valve seat (5) and the valve body (3), it is characterized in that being shaped on blowing cleaner (8) respectively between the valve body (3) of sealing pair both sides and passage and valve pocket, spheroid (4) and valve body (3) channel surface be the sprayed wc wearing layer respectively.
2, the special-purpose super wear resistance ball valve of solar-grade polysilicon according to claim 1 is characterized in that between the valve seat (5) of spring chamber both sides and the valve body (3) dust-proof seal ring (6) being set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117931U CN201391632Y (en) | 2009-04-16 | 2009-04-16 | Special-purpose super wear-resistant ball valve for solar-grade polysilicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117931U CN201391632Y (en) | 2009-04-16 | 2009-04-16 | Special-purpose super wear-resistant ball valve for solar-grade polysilicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391632Y true CN201391632Y (en) | 2010-01-27 |
Family
ID=41598457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920117931U Expired - Fee Related CN201391632Y (en) | 2009-04-16 | 2009-04-16 | Special-purpose super wear-resistant ball valve for solar-grade polysilicon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391632Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042417A (en) * | 2010-12-31 | 2011-05-04 | 利民化工股份有限公司 | Powder sealing valve |
| CN102720856A (en) * | 2012-06-27 | 2012-10-10 | 四川凯茨阀门制造有限公司 | Spray valve |
| CN105473500A (en) * | 2013-08-21 | 2016-04-06 | 瓦克化学股份公司 | Polycrystalline silicon fragments and process for comminuting polycrystalline silicon rods |
| CN107178644A (en) * | 2017-07-11 | 2017-09-19 | 四川苏克流体控制设备有限公司 | Full coated tape purging anti-lock wear resistance ball valve |
-
2009
- 2009-04-16 CN CN200920117931U patent/CN201391632Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042417A (en) * | 2010-12-31 | 2011-05-04 | 利民化工股份有限公司 | Powder sealing valve |
| CN102720856A (en) * | 2012-06-27 | 2012-10-10 | 四川凯茨阀门制造有限公司 | Spray valve |
| CN105473500A (en) * | 2013-08-21 | 2016-04-06 | 瓦克化学股份公司 | Polycrystalline silicon fragments and process for comminuting polycrystalline silicon rods |
| CN105473500B (en) * | 2013-08-21 | 2017-09-12 | 瓦克化学股份公司 | The method of polysilicon fragment and broken polycrystalline silicon rod |
| US10876221B2 (en) | 2013-08-21 | 2020-12-29 | Wacker Chemie Ag | Polycrystalline silicon fragments and process for comminuting polycrystalline silicon rods |
| CN107178644A (en) * | 2017-07-11 | 2017-09-19 | 四川苏克流体控制设备有限公司 | Full coated tape purging anti-lock wear resistance 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: 20100127 Termination date: 20140416 |