CN2366621Y - Shortened neck and broadened cavity type single side wall spherical surface and double sealing butterfly valve - Google Patents
Shortened neck and broadened cavity type single side wall spherical surface and double sealing butterfly valve Download PDFInfo
- Publication number
- CN2366621Y CN2366621Y CN 99203642 CN99203642U CN2366621Y CN 2366621 Y CN2366621 Y CN 2366621Y CN 99203642 CN99203642 CN 99203642 CN 99203642 U CN99203642 U CN 99203642U CN 2366621 Y CN2366621 Y CN 2366621Y
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- expanded
- chamber
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Abstract
The utility model relates to a shortened neck and broadened cavity type single side wall spherical surface and double sealing butterfly valve. The utility model has a valve body, a valve rod is installed in the valve body, and the valve rod is connected with a valve plate. A sealing device is installed between the valve body and the valve rod, and a sealing ring is installed between the valve body and the valve plate. An inlet of the valve body is connected with a shortened neck type press plate, and the two sealing rings are respectively installed between the valve plate and the valve body and between the valve plate and the press plate. The caliber (1) of the shortened neck type press plate is shorter than the diameter (2) of the sealing ring and the diameter (3) of the other sealing ring. The utility model is used for venting dregs and discharging dust in a high vacuum control system, has good sealing effect and long service life and has the characteristics of compact structure, small size, light weight, etc., compared with a break valve, a gate valve and a ball valve.
Description
The utility model relates to valve field, particularly relates to the butterfly valve technology, mainly is applicable to deslagging, unloads in ash and the high vacuum control system.
Butterfly valve is with its compact structure, and volume is light and handy, and characteristics such as function admirable are used widely in each relevant devices, has replaced bulky stop valve, gate valve and ball valve etc. in growing field.At deslagging, unload in the grey dispatch control system, more abominable because of operating conditions, and existing butterfly valve is influenced by directly washing away of dust because sealing mechanism too exposes, cause damage easily, working life is short, so fail to be used fully.
The purpose of this utility model provides a kind of seal ring and does not too expose, and avoids washed away by dust, and adopts one-sided sphere multiple-sealed, guarantees sealing effect, long service life, be applicable to that deslagging unloads the butterfly valve in ash and the high vacuum control system.
The art designs scheme that the one-sided sphere double seals butterfly valve in chamber is expanded in the utility model necking down is: a valve body is arranged, valve rod is installed in the valve body, valve rod connects valve plate, between valve body and valve rod, be equipped with seal arrangement, between valve body and valve plate, seal ring is installed, its valve body import connects the shrinking neck type pressing plate, and two seals circle, so-called its bore of shrinking neck type pressing plate φ are installed between valve plate and valve body and valve plate and pressing plate
1Diameter phi less than seal ring
2, φ
3
The one-sided sphere double seals butterfly valve in chamber is expanded in necking down of the present utility model, and its shrinking neck type pressing plate connects inner clip plate, and inner clip plate connects valve body, and the import and export aperture is arranged on inner clip plate.
The one-sided sphere double seals butterfly valve in chamber is expanded in necking down of the present utility model, and its so-called valve plate is one-sided sphere, and one-sided sphere matches with the two seals circle.
The one-sided sphere double seals butterfly valve in chamber is expanded in necking down of the present utility model, and its so-called valve rod is upper valve rod and lower valve rod, and upper and lower valve rod links to each other with valve plate.
The one-sided sphere double seals butterfly valve in chamber is expanded in necking down of the present utility model, and its valve adopts two eccentric structures, i.e. the geometrical center of valve plate and rotational axis decentraction, and the composition of its operating movement has reduced the wearing and tearing between the sealing surface.
The one-sided sphere double seals butterfly valve in chamber is expanded in necking down of the present utility model, and the seal arrangement between its valve body and the valve rod is labyrinth sealing and the filled sealing of two pass O type circle.
The utility model is a kind of butterfly valve, and the inner chamber of its valve is big, and the import of shrinking neck type pressing plate is little, the double sealing loop diameter that cooperates with valve plate is greater than import, be used for deslagging and unload grey dispatch control system and avoid directly being washed away and cause damage, and increase sealing effect, increase the service life.Compare with existing stop valve, gate valve, ball valve, butterfly valve etc., have compact structure, characteristics such as volume is light and handy.
Fig. 1 is that chamber one-sided sphere double seals butterfly valve structural representation is expanded in the utility model necking down;
Fig. 2 is that the utility model necking down is expanded chamber one-sided sphere double seals butterfly valve A to schematic representation.
Below in conjunction with Fig. 1-Fig. 2 embodiment of the present utility model is done detailed explanation.
1, bar to the doorstep; 2, Gland; 3, filler; 4, valve body; 5, O RunddichtringO; 6, import and export aperture; 7, big sealing ring; 8, small sealing ring; 9, pin; 10, valve plate; 11, lower valve rod; 12,13, labyrinth-type excluder; 14, inner clip plate; 15, shrinking neck type pressing plate.
The utility model relates to butterfly valve, is applicable to that mainly deslagging unloads in ash and the high vacuum control system.Existing butterfly valve is little because of import, if be used for the control system that deslagging unloads ash, seal ring weares and teares because of being subjected to directly washing away very easily of dust, and this technology but is provided with the less shrinking neck type pressing plate 15 of bore, makes the bore φ of shrinking neck type pressing plate 15
1Less than seal ring 7,8 diameter phi
2, φ
3, can avoid seal ring 7,8 too to expose and be subjected to directly washing away of dust, thereby improve the operating mode of seal ring, and prolong working life.In order to improve the sealing effect of valve more effectively, valve plate 10 has adopted one-sided sphere double density seal 7,8 simultaneously, and the O RunddichtringO 5 that valve rod cooperates is formed double sealing.In order to adapt to the working environment of dust, prevent that dust may be piled up between two sealing strips gradually, the keying of influence sealing and valve is offered a pair of import and export aperture 6, in order to gas bleed valve body 4 and valve plate 10 on inner clip plate 14.But also injection pressure hydromining water seal further improves sealability, also is applicable to the control system of high vacuum.In order to improve the circulation situation, reduce the flow resistance of valve simultaneously, adopted cavity broadened type valve body 4 and off-axis formula valve rod, be divided into upper valve rod 1 and lower valve rod 11.For improving the working life of valve, the revolute of protection valve rod and valve body 4 adopts labyrinth-type excluder 12,13, and O RunddichtringO 5 and one group of filler 3 sealing, can avoid dust to enter revolute effectively, also improves the sealing of valve simultaneously.This valve adopts two eccentric structures, i.e. sealing strip and rotational axis coplane not, the geometrical center L of valve plate and rotational axis S decentraction, this structure is in the opening-closing process of valve, optimize the movement locus of valve plate 10, can reduce keying moment effectively, also prolonged the life-span of seal ring 7,8.
Claims (6)
1, the one-sided sphere double seals butterfly valve in chamber is expanded in necking down, a valve body is arranged, valve rod is installed in the valve body, valve rod connects valve plate, between valve body and valve rod, be equipped with seal arrangement, between valve body and valve plate, seal ring be installed, it is characterized in that the valve body import connects shrinking neck type pressing plate (15), two seals circle (7,8), its bore of so-called shrinking neck type pressing plate (15) (φ are installed between valve plate (10) and valve body (4) and valve plate (10) and pressing plate
1) less than the diameter (φ of seal ring (7,8)
2, φ
3).
2, the one-sided sphere double seals butterfly valve in chamber is expanded in necking down as claimed in claim 1, it is characterized in that shrinking neck type pressing plate (15) connects inner clip plate (14), and inner clip plate connects valve body (4), and import and export aperture (6) is arranged on inner clip plate (14).
3, the one-sided sphere double seals butterfly valve in chamber is expanded in necking down as claimed in claim 1, it is characterized in that so-called valve plate (10) is one-sided sphere, and one-sided sphere matches with two seals circle (7,8).
4, the one-sided sphere double seals butterfly valve in chamber is expanded in necking down as claimed in claim 1, it is characterized in that so-called valve rod is upper valve rod (1) and lower valve rod (11), and upper and lower valve rod links to each other with valve plate (10).
5, the one-sided sphere double seals butterfly valve in chamber is expanded in necking down as claimed in claim 1, it is characterized in that valve adopts two eccentric structures, the i.e. geometrical center (L) of valve plate (10) and rotational axis (S) decentraction.
6, the one-sided sphere double seals butterfly valve in chamber is expanded in necking down as claimed in claim 1, it is characterized in that the seal arrangement between valve body (4) and the valve rod (1,11) is labyrinth sealing (12,12) and two pass O type circle (5) filled (3) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203642 CN2366621Y (en) | 1999-02-12 | 1999-02-12 | Shortened neck and broadened cavity type single side wall spherical surface and double sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203642 CN2366621Y (en) | 1999-02-12 | 1999-02-12 | Shortened neck and broadened cavity type single side wall spherical surface and double sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366621Y true CN2366621Y (en) | 2000-03-01 |
Family
ID=33998688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99203642 Expired - Fee Related CN2366621Y (en) | 1999-02-12 | 1999-02-12 | Shortened neck and broadened cavity type single side wall spherical surface and double sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366621Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108518490A (en) * | 2018-05-10 | 2018-09-11 | 江南阀门有限公司 | A kind of low flow resistance butterfly valve of split type shock resistance |
-
1999
- 1999-02-12 CN CN 99203642 patent/CN2366621Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108518490A (en) * | 2018-05-10 | 2018-09-11 | 江南阀门有限公司 | A kind of low flow resistance butterfly valve of split type shock resistance |
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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 |