CN2384052Y - Clamped bidirectional sealed butterfly valve - Google Patents
Clamped bidirectional sealed butterfly valve Download PDFInfo
- Publication number
- CN2384052Y CN2384052Y CN 99212946 CN99212946U CN2384052Y CN 2384052 Y CN2384052 Y CN 2384052Y CN 99212946 CN99212946 CN 99212946 CN 99212946 U CN99212946 U CN 99212946U CN 2384052 Y CN2384052 Y CN 2384052Y
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- CN
- China
- Prior art keywords
- valve
- sealing
- butterfly
- butterfly plate
- valve shaft
- 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 clamped bidirectional sealed butterfly valve, which comprises a valve body, a butterfly plate, a valve shaft, sealing elements and an operating device, wherein, a double-valve plate is used as the butterfly plate, and a symmetrical single eccentric globular arc surface is used as the sealed position of the butterfly plate; two annular elements are used as the sealing elements; each sealing element is provided with two cambered surfaces which have the same sphere centre, and the sealing elements are fixed on both ends of the valve body through flange press rings; an upper valve shaft is connected with the butterfly plate via a slot structure with guide holes. The utility model has the advantage that a circulating medium passing through from any side can be reliably sealed, has the characteristics of easy disassembly and high usage temperature, and is suitable for the fields of power, steel, petroleum, chemical industry, urban heat supply, etc.
Description
The utility model relates to a kind of to pressing from both sides two-way airtight butterfly valve, is applicable to fields such as electric power, iron and steel, chemical industry, oil, city heat supply.
That is using at present, of the same typely is single eccentric rubber seal butterfly valve.It is made up of valve body, butterfly plate, valve rod, Sealing and operation equipment etc.One rubber seal is wherein arranged on the butterfly plate, and its sealing position and valve shaft center produce a radial disbalance.The sealing surface of Sealing (valve seat) is conical.When medium in the valve can reach sealing effect along the assigned direction circulation time.When circulation medium is reverse, do not reach sealing effect.The serviceability temperature of valve is 120 ℃.
The purpose of this utility model is at above-mentioned shortcoming of the prior art, and a kind of good sealing effect, easy-to-disassemble and assemble to the folder bidirectional sealed butterfly valve is provided.
The purpose of this utility model is to realize like this, a kind of to pressing from both sides two-way airtight butterfly valve, it includes valve body, butterfly plate, valve shaft, Sealing and operation equipment, butterfly plate is the bivalve plate, and the sealing position of butterfly plate is the single eccentric spherical arc of symmetry, and Sealing is two ring parts, each Sealing has two cambered surfaces at the same centre of sphere, Sealing is fixed on two ends of valve body by the flange pressure ring, and last valve shaft and lower valve shaft and butterfly plate are for removably connecting, and the upper end of last valve shaft is connected with operation equipment.
Last valve shaft and butterfly plate be connected the inserting slot construction that adopts the tape guide hole, lower valve shaft and butterfly plate are socket connection, last valve shaft and lower valve shaft are on the same axis.
Working principle of the present utility model is as follows:
Butterfly plate is done 90 ° of rotations in valve body under the driving of valve shaft and operation equipment, by rotating extruding, make two Sealings produce resiliently deformable when closing, and contacts thereby make the spherical sealing of butterfly plate cambered surface reach tight with Sealing, realizes sealing reliably.
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the seal configuration schematic representation.
As shown in Figure 1, the utility model includes valve body (6), butterfly plate (8), goes up valve shaft (3), lower valve shaft (9), Sealing (10), operation equipment (1).Butterfly plate (8) is the bivalve plate, the sealing position of butterfly plate (8) is the single eccentric spherical arc of symmetry, Sealing (10) is two ring parts, each Sealing has two cambered surface (see figure 2)s at the same centre of sphere, Sealing is fixed on the two ends of valve body (6) by flange pressure ring (11), the material of Sealing is teflon or contraposition polyphenyl, serviceability temperature is 200 ℃-400 ℃, last valve shaft (3) and butterfly plate (8) be connected the inserting slot construction that adopts the tape guide hole, lower valve shaft (9) is socket connection with butterfly plate (8), and last valve shaft (3) is on the same axis with lower valve shaft (9).Operation equipment (1) is made up of handwheel, worm gear, worm screw.
In Fig. 1, (2) are joint chair, and (4) are Gland, and (5) are filler, and (7) are Upper shaft sleeve, and (12) are Lower shaft sleeve, and (13) are end cap.
During operation, the handwheel on the rotary operators (1), the interior worm screw of drive device, worm gear rotate and make that going up valve shaft (3) follows rotation, because last valve shaft (3) is linked to be an integral body with butterfly plate (8) with the pilot hole inserting slot construction, so also and then rotation of butterfly plate (8).Lower valve shaft (9) one ends are inserted on the valve body (6), and the other end is inserted on the butterfly plate (8), finally like this do 90 ° of rotations by butterfly plate in valve body, have realized the keying of this valve.
The utility model has the advantages that no matter circulation medium is from which side like this because two way seal is adopted in sealing By the time can both reach reliable sealing, and always have a side seal face to play the effect of enhanced leaktightness effect. Valve Axle and butterfly plate have adopted the inserting slot construction in tape guide hole, make the dismounting of valve become very easy. Also improve simultaneously Serviceability temperature.
Claims (4)
1, a kind of to pressing from both sides two-way airtight butterfly valve, it includes valve body, butterfly plate, valve shaft, Sealing and operation equipment, it is characterized in that butterfly plate (8) is the bivalve plate, the sealing position of butterfly plate (8) is the single eccentric spherical arc of symmetry, Sealing (10) is two ring parts, each Sealing has two cambered surfaces at the same centre of sphere, Sealing is fixed on the two ends of valve body (6) by flange pressure ring (11), last valve shaft (3) and lower valve shaft (9) and butterfly plate (8) are for removably connecting, and the upper end of last valve shaft (3) is connected with operation equipment.
2, butterfly valve according to claim 1 is characterized in that the inserting slot construction that adopts the tape guide hole that is connected of valve shaft (3) and butterfly plate (8), and lower valve shaft (9) be socket connection with butterfly plate (8), and last valve shaft (3) and lower valve shaft (9) are on the same axis.
3, butterfly valve according to claim 2, the material that it is characterized in that Sealing are teflon or contraposition polyphenyl.
4, butterfly valve according to claim 3 is characterized in that operation equipment is made up of handwheel, worm gear, worm screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212946 CN2384052Y (en) | 1999-06-10 | 1999-06-10 | Clamped bidirectional sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212946 CN2384052Y (en) | 1999-06-10 | 1999-06-10 | Clamped bidirectional sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384052Y true CN2384052Y (en) | 2000-06-21 |
Family
ID=34005496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99212946 Expired - Fee Related CN2384052Y (en) | 1999-06-10 | 1999-06-10 | Clamped bidirectional sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384052Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346096C (en) * | 2003-05-16 | 2007-10-31 | 阿尔法拉瓦尔Lkm公司 | Butterfly valve |
| CN100387875C (en) * | 2006-03-14 | 2008-05-14 | 湖北锦华阀门制造有限公司 | Butterfly water sealing valve with double gates |
| CN102278487A (en) * | 2011-06-22 | 2011-12-14 | 付永强 | Dual-seal butterfly valve with double valve plates |
| CN105465383A (en) * | 2016-01-08 | 2016-04-06 | 无锡科磊阀业有限公司 | Eccentric butterfly valve structure with self-compensating function |
| CN105705847A (en) * | 2013-09-04 | 2016-06-22 | Bs&B 创新有限公司 | Rotatable valve assembly with plug seal |
| CN108490991A (en) * | 2018-05-10 | 2018-09-04 | 山西省水利水电科学研究院 | A kind of urban flood control and drainage alarm system |
-
1999
- 1999-06-10 CN CN 99212946 patent/CN2384052Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346096C (en) * | 2003-05-16 | 2007-10-31 | 阿尔法拉瓦尔Lkm公司 | Butterfly valve |
| CN100387875C (en) * | 2006-03-14 | 2008-05-14 | 湖北锦华阀门制造有限公司 | Butterfly water sealing valve with double gates |
| CN102278487A (en) * | 2011-06-22 | 2011-12-14 | 付永强 | Dual-seal butterfly valve with double valve plates |
| CN105705847A (en) * | 2013-09-04 | 2016-06-22 | Bs&B 创新有限公司 | Rotatable valve assembly with plug seal |
| CN105465383A (en) * | 2016-01-08 | 2016-04-06 | 无锡科磊阀业有限公司 | Eccentric butterfly valve structure with self-compensating function |
| CN108490991A (en) * | 2018-05-10 | 2018-09-04 | 山西省水利水电科学研究院 | A kind of urban flood control and drainage alarm system |
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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 |