CN2343429Y - Fluoroplastic full-lining butterfly valve for chlor-alkali - Google Patents
Fluoroplastic full-lining butterfly valve for chlor-alkali Download PDFInfo
- Publication number
- CN2343429Y CN2343429Y CN 98223897 CN98223897U CN2343429Y CN 2343429 Y CN2343429 Y CN 2343429Y CN 98223897 CN98223897 CN 98223897 CN 98223897 U CN98223897 U CN 98223897U CN 2343429 Y CN2343429 Y CN 2343429Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- butterfly
- lining
- chlor
- alkali
- 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 fluoroplastic full-lining butterfly valve for chlor-alkali, which is used on a pipeline of chemical industry. The utility model comprises an upper valve body, a lower valve body, a butterfly plate, an upper guide sleeve, a lower guide sleeve and a drive part. The utility model is characterized in that a circular lining with the sealing surfaces of two ends which is made from poly-perfluoro-ethylene-propylene is arranged in an inner cavity of a valve body, multi-layer fillings are arranged between the valve body and the lining to make a strong corrosive medium not contacted with the upper valve body and the lower valve body (a metal body), the lining has the advantages of corrosion resistance and low temperature resistance, the butterfly plate is designed into a circular arc shape, and the surface of the butterfly plate is heatedly coated with a strong-corrosion-resistant plastic layer to ensure that the valve has the advantages of safe use, long service life and good sealing performance.
Description
The utility model is a kind of a kind of chlor-alkali fluoroplastic all-liner butterfly valve that control media flows on the chemical industry chlor-alkali pipeline that is used for.
Relevant by retrieval patent documentation is not found the butterfly valve identical with the utility model structure as yet.In the butterfly valve that present domestic chemical industry is used, owing to do not have the fluoroplastic all-liner of anti-deep-etching, valve body very easily is corroded, and leaks, and the generation accident causes economic loss.
The purpose of this utility model provides the anti-deep-etching of a kind of energy, and good seal performance is low temperature resistant, safe and reliable chlor-alkali fluoroplastic all-liner butterfly valve.
Technical solution of the present utility model is: the chlor-alkali fluoroplastic all-liner butterfly valve, comprise upper valve body, following valve body, butterfly plate, upper and lower guide pin bushing, transmission part, it is characterized in that: be equipped with perfluoroethylene-propylene at body cavity and make circular lining with sealed at both ends, the multilayer filler is housed between valve body and lining, butterfly plate is made as circular arc, is covered with perfluoroethylene-propylene at its surface heat.Be provided with seal groove at upper and lower valve body middle part, filler is housed in the groove.On the inwall of upper and lower guide pin bushing, be inlaid with steel bushing.Upper and lower axle at butterfly plate is equipped with butterfly spring with upper and lower valve body connection place, at the end points of butterfly spring upper and lower guide pin bushing is housed.
Be installed in the chlor-alkali fluoroplastic all-liner butterfly valve on the pipeline,, drive butterfly plate and open, flowing medium is passed through when rotating transmission part.Otherwise,, stop flowing medium to pass through when butterfly plate is closed.
The utility model has the advantages that: novel and reasonable structure owing to be provided with the multilayer filler between valve body and the lining, when butterfly plate was closed, butterfly plate extruding lining produced resiliently deformable between valve body and the lining, make constitute between butterfly plate and lining gap-free sealed.Because the lining that adopts perfluoroethylene-propylene is housed at body cavity, strong corrosive media in the valve body is not contacted with upper and lower valve body, avoid valve body to be corroded, simultaneously lining for a long time serviceability temperature between-40 ℃-250 ℃, and have insulating properties, an ageing resistance, the surface is viscosity not, good lubricity.Because butterfly plate is made as circular arc, when closing butterfly valve, butterfly plate progressively pushes lining, constitutes gap-free sealed.Guarantee that butterfly valve seal is reliable.Owing to be inlaid with copper sheathing on the inwall of upper and lower guide pin bushing, it is wear-resisting that upper and lower guide pin bushing is strengthened, thereby improve the working life of butterfly valve.Because the upper and lower axle at butterfly plate is equipped with butterfly spring with upper and lower valve body connection place, the pressure that butterfly spring produces is pushed down filler, can avoid the upper and lower diaxon of butterfly plate place to leak, and is safe and reliable, can satisfy the usage requirement of operation continuously on the chlor-alkali pipeline.
Below in conjunction with description of drawings embodiment of the present utility model:
Accompanying drawing is the structural representation of chlor-alkali with fluoroplastic all-liner butterfly valve.
Shown in accompanying drawing, die casting and the wear-resisting copper sheathing 2 through shaping (2) are embedded in down respectively form on the inwall of guide pin bushing 1 and upper guide bush 9 whole, butterfly spring 8, stuffing box packing 6 pack into to descend in the seal groove of valve body 3, pass through Bolt Connection in the positioning hole with valve body 3 under guide pin bushing 1 is packed into down, die forming and the circular seal lining 4 through smoking typing are contained in down on the valve body 3.The butterfly plate 5 that heat is covered with perfluoroethylene-propylene is contained in down on the valve body 3, and the lower shaft of butterfly plate matches with the following guide pin bushing that is inlaid with copper sheathing.Butterfly spring 8, filler 6 the going up on the axle of butterfly plate 5 of packing into goes up along butterfly plate that axle is packed into and following valve body 3 is an one by Bolt Connection with upper valve body 7.Upper guide bush 9 is packed on the upper valve body 7 by bolt, transmission part 10 is contained in the top of upper valve body 7 and passes through bolt with upper valve body 7.
Claims (4)
1, a kind of chlor-alkali fluoroplastic all-liner butterfly valve, comprise upper valve body, following valve body, butterfly plate, upper and lower guide pin bushing, transmission part, it is characterized in that: be equipped with perfluoroethylene-propylene at body cavity and make circular lining with sealed at both ends, the multilayer filler is housed between valve body and lining, butterfly plate is made as circular arc, is covered with perfluoroethylene-propylene at its surface heat.
2, chlor-alkali fluoroplastic all-liner butterfly valve according to claim 1 is characterized in that: be provided with seal groove at upper and lower valve body middle part, filler is housed in the groove.
3, chlor-alkali fluoroplastic all-liner butterfly valve according to claim 1 is characterized in that: be inlaid with copper sheathing on the inwall of upper and lower guide pin bushing.
4, chlor-alkali fluoroplastic all-liner butterfly valve according to claim 1 is characterized in that: butterfly spring is equipped with in upper and lower axle and upper and lower valve body connection place at butterfly plate, at the end points of butterfly spring upper and lower guide pin bushing is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223897 CN2343429Y (en) | 1998-04-30 | 1998-04-30 | Fluoroplastic full-lining butterfly valve for chlor-alkali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223897 CN2343429Y (en) | 1998-04-30 | 1998-04-30 | Fluoroplastic full-lining butterfly valve for chlor-alkali |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343429Y true CN2343429Y (en) | 1999-10-13 |
Family
ID=33974887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98223897 Expired - Fee Related CN2343429Y (en) | 1998-04-30 | 1998-04-30 | Fluoroplastic full-lining butterfly valve for chlor-alkali |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343429Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8348236B2 (en) | 2007-10-31 | 2013-01-08 | Saint-Gobain Performance Plastics Corporation | Butterfly valve with a rigid seal |
| US8616585B2 (en) | 2007-10-31 | 2013-12-31 | Saint-Gobain Performance Plastics Corporation | Pipe coupling |
| US8800965B2 (en) | 2007-10-31 | 2014-08-12 | Saint-Gobain Performance Plastics Corporation | Butterfly valve with a rigid seal |
-
1998
- 1998-04-30 CN CN 98223897 patent/CN2343429Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8348236B2 (en) | 2007-10-31 | 2013-01-08 | Saint-Gobain Performance Plastics Corporation | Butterfly valve with a rigid seal |
| US8616585B2 (en) | 2007-10-31 | 2013-12-31 | Saint-Gobain Performance Plastics Corporation | Pipe coupling |
| US8800965B2 (en) | 2007-10-31 | 2014-08-12 | Saint-Gobain Performance Plastics Corporation | Butterfly valve with a rigid seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |