CN201875183U - Top assembling type two dimensional half ball valve of valve seat - Google Patents
Top assembling type two dimensional half ball valve of valve seat Download PDFInfo
- Publication number
- CN201875183U CN201875183U CN201020632877XU CN201020632877U CN201875183U CN 201875183 U CN201875183 U CN 201875183U CN 201020632877X U CN201020632877X U CN 201020632877XU CN 201020632877 U CN201020632877 U CN 201020632877U CN 201875183 U CN201875183 U CN 201875183U
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- CN
- China
- Prior art keywords
- valve
- valve body
- valve seat
- hemisphere
- cover
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a top assembling type two dimensional half ball valve of a valve seat, which comprises a valve body (14). A hemispheroid (7) is arranged in the valve body (14); one end of the valve body (14) is connected with an eccentric cover (8); one end of the eccentric cover (8) is connected with a support frame (10) and a rod bushing (13); the rod bushing (13) surrounds the periphery of a rod (9) connected onto the support frame (10); a valve seat (4) is connected with the valve body (14) through a pressing plate (5), a bolt (2) and an embedded nut (6) which is arranged on the valve body (14); a seal element (3) is arranged between the valve body (14) and the valve seat (4); and the other end of the eccentric cover (8) is connected with the hemispheroid (7). The utility model has the advantages of good seal performance, convenience in online maintenance, low mounting height, low middle cavity pressure, high close and open speed, less abrasion and long service life.
Description
Technical field
The utility model relates to a kind of valve, dress formula two dimension semispherical valve on particularly a kind of valve seat.
Background technique
At present, the domestic and international eccentric half-ball valve of producing, it all is to be that homonymy is packed into and packed into from valve channel exactly usually that its valve seat is installed, and this structure in use is easy to produce leakage phenomenon in the valve body, also be subjected to the restriction of high temperature media simultaneously, particularly can not on-line maintenance, need during maintenance pull down two end flange bolts from pipeline, just can unload maintenance, this is easy to produce outside contamination, has influence on the Environmental Conditions of valve.And the two ends of valve may be not of uniform size, cause the import and export resistance coefficient bigger, and maintenance cost is higher, neither energy-conservation also not environmental protection.
Summary of the invention
At the defective of existing ball valve, the utility model provides dress formula two dimension semispherical valve on a kind of valve seat.
To achieve these goals, the measure taked of the utility model is:
Dress formula two dimension semispherical valve on a kind of valve seat, comprise valve body, the valve inner that one end is connected with the following spring includes hemisphere, hemisphere links to each other with valve seat, the other end of valve body is connected with eccentric cover, be connected with support and bar cover on one end of eccentric cover, the bar cover be enclosed in the bar that is connected on the support around, be disposed with filler and follower between bar cover and the support, valve seat by pressing plate, bolt and the embedded nut on being arranged on valve body link to each other with valve body, be provided with Sealing between valve body and the valve seat, the other end of eccentric cover is connected with the hemisphere wedge shape;
Hemisphere pod apertures in the described hemisphere is pure circle radius structure;
The joint of described hemisphere and valve seat is provided with molten weldering surfacing layer metal;
Described Sealing is the Expanded graphite spirotallic gasket;
The beneficial effects of the utility model: valve seat adopts lumen to pack into, and with valve body in embedded nut and follower bolt push down valve seat, as Sealing, prevent that medium from revealing by the Expanded graphite spirotallic gasket, on-line maintenance is convenient; The hemisphere pod apertures adopts pure circle radius structure, has reduced the valve body setting height(from bottom), and cavity volume reduces in making, and middle cavity pressure reduces; Valve body, valve gap adopt two-dimentional eccentric design principle, and key groove is increased, and valve opening and closing speeds up, and break away from the sealing post gap and increase, and friction is zero; Hemisphere and valve seat adopt special molten weldering surfacing layer metal technology, and sealing surface hardness can be reached about HRC70, reduce wear, and increase the service life.
Description of drawings
Fig. 1 structural representation of the present utility model;
Fig. 2 local linkage structure schematic representation of the present utility model.
Embodiment
Dress formula two dimension semispherical valve on a kind of valve seat, comprise valve body 14, valve body 14 inside that one end is connected with the following spring 1 include hemisphere 7, hemisphere 7 links to each other with valve seat 4, the other end of valve body 14 is connected with eccentric cover 8, be connected with support 10 and bar cover 13 on one end of eccentric cover 8, bar cover 13 be enclosed in the bar 9 that is connected on the support 10 around, be disposed with filler 12 and follower 11 between bar cover 13 and the support 10, valve seat 4 is by pressing plate 5, bolt 2 links to each other with valve body 14 with embedded nut 6 on being arranged on valve body 14, be provided with Sealing 3 between valve body 14 and the valve seat 4, the other end of eccentric cover 8 is connected with hemisphere 7 wedge shapes; Hemisphere pod apertures in the described hemisphere 7 is pure circle radius structure; Described hemisphere 7 is provided with molten weldering surfacing layer metal 15 with the joint of valve seat 4; Described Sealing 3 is the Expanded graphite spirotallic gasket.When mounted, adopt the lumen load mode valve seat 4 of packing into, push down valve seat 4 with embedded nut 6 in the valve body 4 and pressing plate 5, bolt 2, the Sealing 3 of packing between between valve body 14 and the valve seat 4, when needing repairing, turn-off bolt 2, take away pressing plate 5, can conveniently unload lower valve base 4 and keep in repair.
The beneficial effects of the utility model: valve seat adopts lumen to pack into, good seal performance, and on-line maintenance is convenient; The hemisphere pod apertures adopts pure radius of circle structure, has reduced the valve body setting height(from bottom), and cavity volume reduces in making, and middle cavity pressure reduces; Valve body, valve gap adopt two-dimentional eccentric design principle, and key groove is increased, and valve opening and closing speeds up, and break away from the sealing post gap and increase, and friction is zero; Hemisphere and valve seat adopt special molten weldering surfacing layer metal technology, and sealing surface hardness can be reached about HRC70, reduce wear, and increase the service life. Be specially adapted to the operating modes such as petrochemical industry, Heisui River, coal gas, lime-ash.
Those skilled in the art's simple change and replacement all are within the protection domain of the present utility model in this area.
Claims (4)
1. dress formula two dimension semispherical valve on the valve seat, comprise valve body (14), valve body (14) inside that one end is connected with following spring (1) includes hemisphere (7), hemisphere (7) links to each other with valve seat (4), it is characterized in that: the other end of valve body (14) is connected with eccentric cover (8), be connected with support (10) and bar cover (13) on one end of eccentric cover (8), bar cover (13) be enclosed in the bar (9) that is connected on the support (10) around, be disposed with filler (12) and follower (11) between bar cover (13) and the support (10), the other end of eccentric cover (8) is connected with hemisphere (7), valve seat (4) is by pressing plate (5), bolt (2) links to each other with valve body (14) with embedded nut (6) on being arranged on valve body (14), is provided with Sealing (3) between valve body (14) and the valve seat (4).
2. dress formula two dimension semispherical valve on a kind of valve seat according to claim 1, it is characterized in that: the hemisphere pod apertures in the described hemisphere (7) is pure circle radius structure.
3. dress formula two dimension semispherical valve on a kind of valve seat according to claim 1, it is characterized in that: described Sealing (3) is the Expanded graphite spirotallic gasket.
4. according to dress formula two dimension semispherical valve on claim 2 or the 3 described a kind of valve seats, it is characterized in that: the joint of described hemisphere and valve seat is provided with molten weldering surfacing layer metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020632877XU CN201875183U (en) | 2010-11-29 | 2010-11-29 | Top assembling type two dimensional half ball valve of valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020632877XU CN201875183U (en) | 2010-11-29 | 2010-11-29 | Top assembling type two dimensional half ball valve of valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875183U true CN201875183U (en) | 2011-06-22 |
Family
ID=44163100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020632877XU Expired - Fee Related CN201875183U (en) | 2010-11-29 | 2010-11-29 | Top assembling type two dimensional half ball valve of valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615564A (en) * | 2013-11-20 | 2014-03-05 | 无锡智能自控工程股份有限公司 | Material blocking preventing structure for top mounting ball valve lower shaft |
| CN108612862A (en) * | 2018-07-19 | 2018-10-02 | 开维喜阀门集团有限公司 | It is a kind of can on-line maintenance eccentric half-ball valve |
-
2010
- 2010-11-29 CN CN201020632877XU patent/CN201875183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615564A (en) * | 2013-11-20 | 2014-03-05 | 无锡智能自控工程股份有限公司 | Material blocking preventing structure for top mounting ball valve lower shaft |
| CN108612862A (en) * | 2018-07-19 | 2018-10-02 | 开维喜阀门集团有限公司 | It is a kind of can on-line maintenance eccentric half-ball valve |
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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: 20110622 Termination date: 20111129 |