CN207961584U - A kind of compact fireproof high-pressure ball valve - Google Patents
A kind of compact fireproof high-pressure ball valve Download PDFInfo
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- CN207961584U CN207961584U CN201721896790.1U CN201721896790U CN207961584U CN 207961584 U CN207961584 U CN 207961584U CN 201721896790 U CN201721896790 U CN 201721896790U CN 207961584 U CN207961584 U CN 207961584U
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- valve
- valve body
- valve rod
- ball
- card slot
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Abstract
A kind of compact fireproof high-pressure ball valve, metal wound gasket is equipped between valve body and connector, there are gaps between ball surface and connection intracoelomic cavity, connection intracoelomic cavity is provided with soft seal ring, soft seal ring offsets with ball surface, for connector intracavity sidewall around soft seal ring as fire prevention lip, fire prevention lip can be seamless applying with ball surface；Valve rod and setting electric installation in valve ball coupling part；Valve rod side wall is provided with valve rod card slot, valve interior wall is equipped with valve body card slot, valve rod card slot is corresponded with valve body card slot, it is arranged in valve rod card slot on the inside of split annulus, outside is arranged in valve body card slot, thrust bearing is placed on valve rod and is placed in above split annulus, is arranged in valve body card slot on the outside of thrust bearing；It is equipped with packing groove between valve interior wall and valve rod side wall, filler is installed in packing groove, is used in combination gland compression to be sealed valve rod and valve body, electric installation is provided between valve rod and valve body.Realize the good fire protecting performance of ball valve under high-pressure medium and sealing performance.
Description
Technical field
The utility model is related to a kind of ball valve more particularly to a kind of compact fireproof high-pressure ball valves.
Background technology
Ball valve is mainly used for fluid or gas pipeline transmission, and block fluid or gas are wide to repair, overhaul or to construct
It is general to be used in the industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, water conservancy, electric power, with the growth of CNG energy demands, compression
The high-pressure ball valve of natural gas is using more and more extensive.
Since CNG compressed natural gas pipeline media are compressed natural gas category high pressure, inflammable, explosive medium, usually use
It is mostly soft sealing structure in the ball valve of the pipeline, O-ring sealing is all made of between valve body and connector, between valve rod and valve body, without anti-
Fire safety structure causes largely to leak outside and cause serious consequence once fire, which occurs, will cause seal failure.
Invention content
To solve the above problems, the utility model provides following scheme：
A kind of compact fireproof high-pressure ball valve, includes valve body, connector, valve ball, valve rod, handle connector and handle,
Connector one end is fixed in valve body, and valve ball is placed between being placed in two connectors in valve body, and valve rod passes through valve body and valve ball phase
Even, valve body upper end is fixed with handle connector, and handle extends through the handle connector, and valve rod upper end is connected with handle, valve body with connect
Metal wound gasket is equipped between body as sealing, there are gap, connection intracoelomic cavity settings between ball surface and connection intracoelomic cavity
There are two symmetrical soft seal rings, soft seal ring to offset to form sealing with ball surface, the connector lumen side around soft seal ring
Wall is equipped with fire prevention lip, and when soft seal is destroyed, fire prevention lip can be seamless applying with ball surface；Valve rod and valve ball coupling part
Interior setting electric installation one；Valve rod side wall is provided with valve rod card slot, and valve interior wall is equipped with valve body card slot, valve rod card slot and valve body card slot
It corresponds, is arranged in valve rod card slot on the inside of split annulus, outside, which is arranged in valve body card slot, prevents valve rod from spraying, thrust shaft
Bearing sleeve is placed in valve rod above split annulus, is arranged in valve body card slot on the outside of thrust bearing；Between valve interior wall and valve rod side wall
Equipped with packing groove, filler is installed in packing groove, gland is used in combination to compress, valve rod and valve body are sealed, valve rod and valve
Electric installation two is provided between body.
Further, O-ring is additionally provided between valve body and connector, between valve rod and valve body to be sealed.
Further, valve rod side wall is provided with conductive trough, and the electric installation one, electric installation two include spring and steel
Ball, spring are placed in conductive trough, and steel ball is placed in outer spring end, and steel ball offsets with valve ball in electric installation one, in electric installation two
Steel ball offsets with valve body.
Further, filler material is graphite.
The beneficial effects of the utility model are：
1. carrying out secondary seal by O-ring and metal wound gasket between valve body and connector, pass through between valve rod and valve body
Filler and O-ring carry out secondary seal, ensure sealing effect, No leakage.
2. using metal wound gasket circle between valve body and connector, fire prevention work(is all had using graphite packing between valve rod and valve body
Energy.
3. the setting for lip of preventing fires can be seamless applying with valve ball after soft seal ring is burned out, be formed and seal and prevent fire
Sprawling.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is valve rod and valve seal portion structure schematic diagram.
1. valve body；2. connector；3. valve ball；4. soft seal ring；5. valve rod；6. gland；7. split annulus；8. handle
Connector；9. handle；10.O shape circles；11. metal wound gasket；12. thrust bearing；13. electric installation one；14. graphite packing；
15. lip of preventing fires；16. electric installation two.
Specific implementation mode
The utility model is described in detail in conjunction with attached drawing：
Embodiment 1：A kind of compact fireproof high-pressure ball valve includes valve body 1, connector 2, valve ball 3, valve rod 5, handle company
Junctor 8 and handle 7, connector 2 are fixed in valve body 1, and valve ball 3 is placed between being placed in two connectors 2 in valve body 1, and valve rod 5 is worn
It crosses valve body 1 with valve ball 3 to be connected, 1 upper end of valve body is fixed with handle connector 8, and handle 7 extends through the handle connector 8,5 upper end of valve rod
It is connected with handle 7, metal wound gasket 11 is equipped between valve body 1 and connector 2 and is used as once sealing, 3 surface of valve ball and connector 2
There are gap between inner cavity, 2 inner cavity of connector is provided with soft seal ring 4 symmetrical above and below, soft seal ring 4 and 3 surface phase of valve ball
Sealed to being formed, 2 intracavity sidewall of connector around soft seal ring 4 is equipped with fire prevention lip 15, valve rod 5 in 3 coupling part of valve ball
Electric installation 1 is set；5 side wall of valve rod is provided with valve rod card slot, and 1 inner wall of valve body is equipped with valve body card slot, valve rod card slot and valve body card
Slot corresponds, and split annulus 7 and 12 inside of thrust bearing are arranged in valve rod card slot, and outside is arranged in valve body card slot and prevents
Valve rod 5 sprays；It is equipped with packing groove between 5 side wall of 1 inner wall of valve body and valve rod, is filled with graphite packing 14 in packing groove, filler pressure is used in combination
Lid 6 compresses, and carries out once sealing to valve rod 5 and valve body 1, electric installation 2 16 is provided between valve rod 5 and valve body 1.Valve body 1 and company
It is additionally provided with O-ring 10 between junctor 2, between valve rod 5 and valve body 1 and carries out secondary seal sealing.5 side wall of valve rod is provided with conduction
Slot, electric installation 1, electric installation 2 15 include spring and steel ball, and spring is placed in conductive trough, and steel ball is placed in spring
Outer end, steel ball offsets with valve ball 3 in electric installation 1, and steel ball offsets with valve body 1 in electric installation 2 15.
When ball valve standard-sized sheet, medium flows from left to right；Rotational handle 9, band fixed handle connector 8, driving stem 5 drives
Valve ball 3 closes valve, and high-pressure medium will push valve ball 3 to move right at this time, and valve ball 3 and the sealing surface of valve seat soft seal ring 4 are tight
Closely connected conjunction forms sealing, realizes the closing process of valve, the high-pressure medium in valve body 1 will be pressed against the O-shaped of 2 position of connector
Circle 10 makes its generation be radially expanded the first order sealing to be formed between valve body 1 and connector 2, while being arranged in valve body 1 and connector
Metal wound gasket 11 between 2 forms second level sealing, under the action of dual-seal, keeps sealing more reliable, greatly reduces
The phenomenon that leaking outside between valve body and connector.The effect that metal wound gasket not only acts as secondary seal simultaneously also has fire safety work(
Energy.High-pressure medium, which acts on valve rod 5, pushes valve rod 5 to press to split annulus 7 and thrust bearing 12, acts on the card slot of valve body 1
It is interior, since the setting of split annulus 7 in 5 card slot of valve rod prevents valve rod 5 from blowing out valve body 1 by high-pressure medium, have the function of anti-ejection,
The O-ring 10 that high-pressure medium will be pressed on valve rod 5 by the gap between valve rod 5 and valve body 1, brings it about and is radially expanded to be formed
First order sealing between valve rod and valve body, while graphite packing 14 is formed in high-pressure medium under the collective effect of gland 6
The second level seals, and valve rod 5 under the action of dual-seal, keeps sealing more reliable, greatly reduce between valve rod and valve body with valve body 1
The phenomenon that leakage.The effect that graphite packing 14 simultaneously not only acts as secondary seal also has the function of fire safety.
It is equipped between electric installation 1, valve rod 5 and valve body 1 between valve ball 3 and valve rod 5 and is equipped with electric installation 2 16, it can be with
The electrostatic that soft seal ring 4 and the friction of valve ball 3 generate is passed by electric installation 1 and passes through electric installation two with valve rod 5, valve rod 5
16 biographies are connected with valve body 1 with pipeline, form electrostatic channel, have anti-static function；In medium pressure after soft seal ring 4 is burned
Force effect lower valve ball 3, which can be tightly attached on fire prevention lip 15, to be play a part of instantaneously to seal, and has the function of fire safety.
Claims (4)
1. a kind of compact fireproof high-pressure ball valve includes valve body, connector, valve ball, valve rod, handle connector and handle, connects
Junctor one end is fixed in valve body, and valve ball is placed between being placed in two connectors in valve body, and valve rod is connected across valve body with valve ball,
Valve body upper end is fixed with handle connector, and handle extends through the handle connector, and valve rod upper end is connected with handle, it is characterised in that：Valve
Metal wound gasket is equipped between body and connector as sealing, there are gap, connectors between ball surface and connection intracoelomic cavity
Inner cavity is provided with two symmetrical soft seal rings, and soft seal ring offsets to form sealing with ball surface, the connection around soft seal ring
Intracoelomic cavity side wall is equipped with fire prevention lip, and when soft seal is destroyed, fire prevention lip can be seamless applying with ball surface；Valve rod and valve ball
Electric installation one is set in coupling part；Valve rod side wall is provided with valve rod card slot, and valve interior wall is equipped with valve body card slot, valve rod card slot with
Valve body card slot corresponds, and is arranged in valve rod card slot on the inside of split annulus, outside, which is arranged in valve body card slot, prevents valve rod from spraying
Go out, thrust bearing is placed on valve rod and is placed in above split annulus, is arranged in valve body card slot on the outside of thrust bearing；Valve interior wall and valve
It is equipped with packing groove between bar side wall, filler is installed in packing groove, is used in combination gland to compress, valve rod and valve body is sealed,
Electric installation two is provided between valve rod and valve body.
2. a kind of compact fireproof high-pressure ball valve as described in the appended claim 1, it is characterised in that：The valve body and connector it
Between, be additionally provided with O-ring between valve rod and valve body and be sealed.
3. a kind of compact fireproof high-pressure ball valve as described in the appended claim 1, it is characterised in that：The valve rod side wall is provided with conduction
Slot, the electric installation one, electric installation two include spring and steel ball, and spring is placed in conductive trough, and steel ball is placed in spring
Outer end, steel ball offsets with valve ball in electric installation one, and steel ball offsets with valve body in electric installation two.
4. a kind of compact fireproof high-pressure ball valve as described in the appended claim 1, it is characterised in that：The filler material is graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896790.1U CN207961584U (en) | 2017-12-29 | 2017-12-29 | A kind of compact fireproof high-pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896790.1U CN207961584U (en) | 2017-12-29 | 2017-12-29 | A kind of compact fireproof high-pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961584U true CN207961584U (en) | 2018-10-12 |
Family
ID=63730885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721896790.1U Active CN207961584U (en) | 2017-12-29 | 2017-12-29 | A kind of compact fireproof high-pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131439A (en) * | 2019-05-21 | 2019-08-16 | 天津市塘沽第一阀门有限公司 | A kind of anti-blow valve stem equipment of welding ball valve |
-
2017
- 2017-12-29 CN CN201721896790.1U patent/CN207961584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131439A (en) * | 2019-05-21 | 2019-08-16 | 天津市塘沽第一阀门有限公司 | A kind of anti-blow valve stem equipment of welding ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 26, Yuchuan Road, high tech Industrial Park, Zigong, Sichuan, 643000 Patentee after: Sichuan Dewei Valve Co.,Ltd. Address before: No. 26, Yuchuan Road, high tech Industrial Park, Zigong, Sichuan, 643000 Patentee before: SICHUAN VOLANT VALVE Co.,Ltd. |