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CN202927115U - Valve special for polycrystalline silicon - Google Patents

Valve special for polycrystalline silicon Download PDF

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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
Application number
CN 201220435090
Other languages
Chinese (zh)
Inventor
陈信阳
黄金标
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHUANGHENG VALVE CO Ltd
Original Assignee
SHUANGHENG VALVE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHUANGHENG VALVE CO Ltd filed Critical SHUANGHENG VALVE CO Ltd
Priority to CN 201220435090 priority Critical patent/CN202927115U/en
Application granted granted Critical
Publication of CN202927115U publication Critical patent/CN202927115U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

The polysilicon special valve
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.
CN 201220435090 2013-01-26 2013-01-26 Valve special for polycrystalline silicon Expired - Fee Related CN202927115U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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