CN202927115U - Valve special for polycrystalline silicon - Google Patents
Valve special for polycrystalline silicon Download PDFInfo
- Publication number
- CN202927115U CN202927115U CN 201220435090 CN201220435090U CN202927115U CN 202927115 U CN202927115 U CN 202927115U CN 201220435090 CN201220435090 CN 201220435090 CN 201220435090 U CN201220435090 U CN 201220435090U CN 202927115 U CN202927115 U CN 202927115U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve body
- sphere
- sealing
- 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
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 229920005591 polysilicon Polymers 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 2
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 235000013312 flour Nutrition 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 238000010926 purge Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
A valve special for polycrystalline silicon comprises a valve body, a valve seat, a sphere, a valve rod, a lifting mechanism, a sealing element and an installing element, wherein the surfaces of the valve seat and the sphere are sprayed with protective film materials, a powder dust extraction mechanism is arranged on the periphery of a sealing face of the valve seat, and a spring cavity and a spring are arranged between the valve seat and the valve body. Mainly, blow-off nozzles are respectively formed in the valve body, on the two sides of a sealing pair, and between a channel and a valve cavity, protective film wearing layers are respectively sprayed on the surfaces of the sphere and the valve body channel, and rubber rings are respectively arranged between the valve body and the valve seat on both sides of the spring cavity. Compared with the prior art, the valve special for polycrystalline silicon has the advantages that high-pressure gas is blown into the blow-off nozzles when valve is opened and closed to blow down powders stacked on the surfaces of the valve seat and the sphere, so that a double-layer scraper of the powder dust extraction mechanism is enabled to easily scrape off silicon powders bonded on the sphere surface and abrasion of the sealing pair is reduced.
Description
Technical field
The utility model relates to a kind of valve, particularly 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 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 very soon, wear and tear 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 protection membrane material, improve the abrasion resistance properties of sealing pair.But in the 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 for prior art, and a kind of resistance to erosion, wear-resistant is provided, and sealability is reliable, the polysilicon special valve of long service life.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, elevator mechanism, Sealing and assembling set; valve seat and spherome surface sprayed protection membrane material; be provided with the powder dust removal mechanism in the sealing surface of seat periphery; be provided with spring chamber and spring between valve seat and valve body; mainly to be shaped with respectively blowing mouth between the valve body of sealing pair both sides and passage and valve pocket; spheroid and valve channel surface is the coating protective film wearing layer respectively, between the valve seat of spring chamber both sides and valve body, rubber ring is set respectively.
The utility model beneficial effect compared with prior art is: blowing mouth is blown into the powder that pressurized gas will be deposited in valve seat and spherome surface and purges when valve opening and closing; make the double-deck scraper of powder dust removal mechanism be easier to strike off the silica flour of bonding spherome surface; reduce the wearing and tearing of sealing pair; simultaneously; the equal coating protective film wearing layer of the passage of spheroid and valve body and medium contact prevents that medium from washing away the damage sealing pair, has resistance to erosion, wear-resistant; sealability is reliable, the advantages such as long service life.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Fig. 2 is valve seat construction partial enlarged drawing in the utility model Fig. 1.
Fig. 3 is the partial enlarged drawing of sealing pair in the utility model Fig. 2.
Embodiment
Polysilicon special valve as shown in Figure 1; comprise valve body 3, valve seat 5, spheroid 4, valve rod 2, elevator mechanism 1, Sealing and assembling set; valve seat 5 and spheroid 4 surface spraying protective film materials; be provided with powder dust removal mechanism 9 in valve seat 5 sealing surface peripheries; the scraper of this powder dust removal mechanism 9 for arranging on 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 valve body 3, valve seat 5 can be floated, prevent that high-temperature expansion is stuck.Be shaped with respectively blowing mouth 8 between the valve body 3 of sealing pair both sides and passage and valve pocket, described blowing mouth 8 is for making the purge hole that leads to valve seat 5 passages and valve pocket on valve body 3, sealing plug is set in purge hole, and the powder that will be deposited in valve seat 5 and spheroid 4 surfaces at valve opening and closing to be blown into pressurized gas from purge hole purges.Spheroid 4 and valve body 3 channel surfaces difference coating protective film wearing layers prevent medium washing away passage.Between the valve seat 5 of spring chamber both sides and valve body 3, rubber ring 6 is set respectively, prevents that silica flour from entering spring chamber spring 7 was lost efficacy.
Claims (1)
1. polysilicon special valve, comprise valve body (3), valve seat (5), spheroid (4), valve rod (2), elevator mechanism (1), Sealing and assembling set, valve seat (5) and spheroid (4) surface spraying protective film material, be provided with powder dust removal mechanism (9) in valve seat (5) sealing surface periphery, be provided with spring chamber and spring (7) between valve seat (5) and valve body (3), it is characterized in that being shaped with respectively blowing mouth (8) 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 coating protective film wearing layer respectively, between the valve seat of spring chamber both sides (5) and valve body (3), rubber ring (6) is set respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220435090 CN202927115U (en) | 2013-01-26 | 2013-01-26 | Valve special for polycrystalline silicon |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220435090 CN202927115U (en) | 2013-01-26 | 2013-01-26 | Valve special for polycrystalline silicon |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202927115U true CN202927115U (en) | 2013-05-08 |
Family
ID=48217074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220435090 Expired - Fee Related CN202927115U (en) | 2013-01-26 | 2013-01-26 | Valve special for polycrystalline silicon |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202927115U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112081945A (en) * | 2020-09-27 | 2020-12-15 | 九方流体系统技术(深圳)有限公司 | Diamond Coated Wear Resistant Diaphragm Ball Valve |
CN112610717A (en) * | 2021-02-01 | 2021-04-06 | 温州青鸟自控阀门有限公司 | Automatic decoking multi-layer sealing discharging ball valve with double scrapers |
CN115143301A (en) * | 2022-08-19 | 2022-10-04 | 浙江欧宝阀门制造有限公司 | A multifunctional eccentric hemisphere valve |
-
2013
- 2013-01-26 CN CN 201220435090 patent/CN202927115U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112081945A (en) * | 2020-09-27 | 2020-12-15 | 九方流体系统技术(深圳)有限公司 | Diamond Coated Wear Resistant Diaphragm Ball Valve |
CN112610717A (en) * | 2021-02-01 | 2021-04-06 | 温州青鸟自控阀门有限公司 | Automatic decoking multi-layer sealing discharging ball valve with double scrapers |
CN112610717B (en) * | 2021-02-01 | 2024-05-24 | 温州青鸟自控阀门有限公司 | Automatic decoking multi-level sealing unloading ball valve with double scrapers |
CN115143301A (en) * | 2022-08-19 | 2022-10-04 | 浙江欧宝阀门制造有限公司 | A multifunctional eccentric hemisphere valve |
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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 |
Granted publication date: 20130508 Termination date: 20150126 |
|
EXPY | Termination of patent right or utility model |