CN2416288Y - Spherical seal stop valve for liquid caustic soda - Google Patents
Spherical seal stop valve for liquid caustic soda Download PDFInfo
- Publication number
- CN2416288Y CN2416288Y CN 00216232 CN00216232U CN2416288Y CN 2416288 Y CN2416288 Y CN 2416288Y CN 00216232 CN00216232 CN 00216232 CN 00216232 U CN00216232 U CN 00216232U CN 2416288 Y CN2416288 Y CN 2416288Y
- Authority
- CN
- China
- Prior art keywords
- valve
- caustic soda
- liquid caustic
- stop valve
- flap
- 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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Abstract
The utility model relates to a spherical seal stop valve for liquid caustic soda controlling the medium flow in liquid caustic soda producing pipelines for chemical enterprises. The utility model comprises a valve cover assembly, a valve body, a valve clack, a middle flange gasket, a hand wheel, a stuffing pressing sleeve, and a pressing plate. The utility model is characterized in that the outer side of the conical body of the valve clack is provided with a boss. The boss is provided with corrosion resistant alloy in a spraying way, and the inner part of a groove of an inner ring or an outer ring of the stuffing pressing sleeve is embedded with an elastic sealing ring. Because the sealing surface of the valve clack and the valve body adopts a conical spherical sealing structure and the pressing plate and the stuffing pressing sleeve adopt spherical contact for fastening, the valve has favorable sealing performance, safe use, and long service life.
Description
The utility model is a kind of liquid caustic soda ball face sealing stop valve that control media flows on the Production in Chemical Plant liquid caustic soda pipeline that is used for.
Relevant by retrieval patent documentation is not found the valve identical with the utility model structure as yet.China's chemical industry is not specialized in liquid caustic soda ball face sealing stop valve at present, and the valve that is used for the liquid caustic soda pipeline is common stop valve, because the sealing surface of common stop valve, filler is corrosion resistant not, is used for liquid caustic soda pipeline rapid wear, changes frequently, causes economic loss.And the sealing configuration of common stop valve routine does not reach the seal request of Chemical Manufacture, is installed on the liquid caustic soda pipeline of continuous operation perishablely, causes leakage.
The purpose of this utility model is that a kind of good seal performance will be provided, and corrosion resistant is safe and reliable, the liquid caustic soda ball face sealing stop valve that the life-span is long.
Technical characteristics of the present utility model is: liquid caustic soda comprises valve gap assembly, valve body, flap, middle flange gasket, handwheel, filler gland, pressing plate with the ball face sealing stop valve, it is characterized in that: the outside in the flap cone is processed with boss; Be processed with groove at valve body middle part inner chamber and on the interior circle of filler gland and cylindrical, be processed with groove.
At surfacing one deck anticorrosion alloy on the boss of flap: in the groove of the Internal and external cycle of filler gland, inlay elasticity O RunddichtringO.
Be installed in the liquid caustic soda ball face sealing stop valve on the liquid caustic soda pipeline, when opening/shutting valve, valve rod drives flap and moves up and down, because flap splits annulus with the valve rod employing and the flap lid connects, flap is freely rotated on valve rod, do not have adhesive wear between the sealing surface, reach good sealing effect.When valve closing, the sealing surface surfacing has that the conisphere face shape flap of anticorrosion alloy is self-align to be fit to the sphere shape sealing surface that the body cavity built-up welding has anticorrosion alloy, makes sealing tight after stressed.When Open valve, after flap was fully opened, flap lid end face was close to the O RunddichtringO of valve gap bottom and can be changed under the valve working state after stressed and increase filler.
The utility model has the advantages that rational in infrastructurely, design is unique, because flap adopts conisphere face form with valve body sealing surface, sealing tightly, and is safe and reliable.Because pressing plate, filler gland adopt the sphere contact fastening, it is coaxial that gland and valve rod remain, and makes the valve rod lifting freely.Owing to be inlaid with elasticity O RunddichtringO in the inside and outside circle volume groove of gland, can guarantee filler chamber's zero leakage.Because flap and body cavity sealing surface adopt the anticorrosion alloy material, the anticorrosive anti-wear performance is superior.Thereby satisfy the cycle usage requirement of liquid caustic soda pipeline.Regulation international, relative national standards that every technical performance index all reaches.
Below in conjunction with description of drawings the utility model embodiment:
On valve gap 11 tops Stem Mut 12 is housed, inlays O RunddichtringO 6, in the filler chamber of valve gap, place shaping filler 7, put into filler gland 9 that inside and outside circle is inlaid with O RunddichtringO 8, be processed with groove on the circle of filler gland 9 and the cylindrical in valve gap bottom.Pressing plate 10 usefulness bolts and valve gap are fastening, the O RunddichtringO of valve rod 13 from the valve gap bottom sealed in, link through filler, gland, interior round O RunddichtringO, pressing plate and Stem Mut, load onto flap lid 4 in stem bottom, split annulus 3, will adopt the screw thread welding fastening with the flap lid with the flap 2 of cone, the outside of flap 2 is processed with boss, surfacing one deck anticorrosion alloy on the boss of flap.Inner chamber is processed with groove at the valve body middle part.Flange washer 5 in inner chamber is processed with the groove of flange in the valve body of ball face sealing face, placing, the valve gap assembly that flap is housed is fastening with valve body 1 employing Bolt Connection.In the valve rod end handwheel 14 is housed.
Claims (3)
1, a kind of liquid caustic soda ball face sealing stop valve comprises valve gap assembly, valve body, flap, middle flange gasket, handwheel, filler gland, pressing plate, and it is characterized in that: the outside in the flap cone is processed with boss, and inner chamber is processed with groove at the valve body middle part; On the interior circle of filler gland and cylindrical, be processed with groove.
2, liquid caustic soda according to claim 1 sphere stop valve is characterized in that: surfacing one deck anticorrosion alloy on the boss of flap.
3, liquid caustic soda according to claim 1 and 2 sphere stop valve is characterized in that: inlay elasticity O RunddichtringO in the groove of the inside and outside circle of filler gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00216232 CN2416288Y (en) | 2000-01-20 | 2000-01-20 | Spherical seal stop valve for liquid caustic soda |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00216232 CN2416288Y (en) | 2000-01-20 | 2000-01-20 | Spherical seal stop valve for liquid caustic soda |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2416288Y true CN2416288Y (en) | 2001-01-24 |
Family
ID=33582003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00216232 Expired - Fee Related CN2416288Y (en) | 2000-01-20 | 2000-01-20 | Spherical seal stop valve for liquid caustic soda |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2416288Y (en) |
-
2000
- 2000-01-20 CN CN 00216232 patent/CN2416288Y/en not_active Expired - Fee Related
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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: 20010124 |