CN207364321U - A kind of hard seal ball valve - Google Patents
A kind of hard seal ball valve Download PDFInfo
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- CN207364321U CN207364321U CN201721391075.2U CN201721391075U CN207364321U CN 207364321 U CN207364321 U CN 207364321U CN 201721391075 U CN201721391075 U CN 201721391075U CN 207364321 U CN207364321 U CN 207364321U
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- valve
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- valve seat
- sealing
- ring
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Abstract
A kind of hard seal ball valve.It is not fine mainly to solve the problems, such as the sealing effect between its valve seat of hard seal ball valve and valve body.The utility model provides a kind of hard seal ball valve, the valve seat and sphere that sealing coordinates are equipped with valve body, seal assembly is equipped between valve seat peripheral outer wall and valve body, spring ring is set in outside pedestal, spring pocket one end compresses cooperation with valve body axial direction inner wall, and the other end is acted on sealing ring by valve seat pressure ring, and sealing ring top pressure is at slope back, the first airtight and watertight padding is equipped between pedestal circumferential direction wall and valve body, the second airtight and watertight padding is equipped between bulge loop peripheral outer wall and valve body.Sealing is provided by seal assembly, auxiliary seal and dustproof effect are used as by the first airtight and watertight padding and the second airtight and watertight padding, prevents media particle enters from causing valve seat stuck, improves the sealing performance of valve, the operation moment of torsion of valve is reduced, extends valve service life.
Description
Technical field
It the utility model is related to hard seal ball valve field, and in particular to a kind of hard seal ball valve.
Background technology
With the development of the modernization of industry, various new technological processes continue to bring out, the neck such as oil, chemical industry, metallurgy, electric power
The requirement of higher is proposed while domain is in line with international standards to hard seal ball valve, that is, requires hard seal ball valve that there is high temperature resistant, resistance to
Grind the functions such as resistance to erosion, good antiscale property, fast shut-off, high temperature, high pressure（Generally using Class600 to Class900 pressure stages）, be situated between
Matter pellet hardness is very high, open and close frequently, open and close speed soon and requires the good seal performance of valve, and reliability is high.
However, the sealing effect between its valve seat of general hard seal ball valve and valve body is not fine.
Utility model content
In order to overcome the shortcomings of background technology, the utility model provides a kind of hard seal ball valve, mainly solves hard seal ball
Not the problem of sealing effect between its valve seat of valve and valve body is not fine.
Technical solution is used by the utility model：
A kind of hard seal ball valve, including valve body, are equipped with the valve seat and sphere that sealing coordinates in the valve body, on the sphere
Valve rod is integrally formed with, seal assembly is equipped between the valve seat peripheral outer wall and the valve body, the seal assembly is included from outer
To the interior spring ring being equipped with successively, valve seat pressure ring and sealing ring, the valve seat includes pedestal, bulge loop and the connection pedestal and convex
The slope of ring, the spring ring are set in outside the pedestal, and described spring pocket one end compresses cooperation with the valve body axial direction inner wall,
The other end is acted on the sealing ring by the valve seat pressure ring, and the sealing ring top pressure is in the slope back, the seat
The first airtight and watertight padding is equipped between body circumferential direction wall and the valve body, second is equipped between the bulge loop peripheral outer wall and the valve body
Airtight and watertight padding.
The beneficial effects of the utility model are：The utility model provides a kind of hard seal ball valve, matches somebody with somebody in valve body equipped with sealing
The valve seat and sphere of conjunction, are integrally formed with valve rod on sphere, seal assembly, seal assembly are equipped between valve seat peripheral outer wall and valve body
Including the spring ring, valve seat pressure ring and sealing ring being equipped with successively from outside to inside, valve seat includes pedestal, bulge loop and connection pedestal and convex
The slope of ring, spring ring are set in outside pedestal, and spring pocket one end compresses cooperation with valve body axial direction inner wall, and the other end passes through valve seat pressure
Ring is acted on sealing ring, and sealing ring top pressure is equipped with the first airtight and watertight padding between slope back, pedestal circumferential direction wall and valve body, convex
The second airtight and watertight padding is equipped between ring peripheral outer wall and valve body.There is provided sealing by seal assembly, by the first airtight and watertight padding and
Second airtight and watertight padding prevents media particle enters from causing valve seat stuck, improves valve as auxiliary seal and dustproof effect
Sealing performance, reduces the operation moment of torsion of valve, extends valve service life.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the utility model one embodiment.
Fig. 2 is the enlarged diagram at I in Fig. 1.
Fig. 3 is the enlarged diagram at A in Fig. 1.
Embodiment
Utility model is described further below in conjunction with the accompanying drawings：As shown in the figure, a kind of hard seal ball valve, including valve body 1,
Valve seat 2 and sphere 3 that sealing coordinates are equipped with the valve body, valve rod 4, the valve seat peripheral outer wall are integrally formed with the sphere
Seal assembly 5 is equipped between the valve body, the seal assembly includes spring ring 51, the valve seat pressure being equipped with successively from outside to inside
Ring 52 and sealing ring 53, the valve seat 2 include pedestal 21, bulge loop 22 and the slope 23 of the connection pedestal and bulge loop, the bullet
Spring coil is set in outside the pedestal, and described spring pocket one end compresses cooperation with the valve body axial direction inner wall, and the other end passes through described
Valve seat pressure ring is acted on the sealing ring, the sealing ring top pressure at the slope back, the pedestal circumferential direction wall with it is described
The first airtight and watertight padding 211 is equipped between valve body, the second airtight and watertight padding is equipped between the bulge loop peripheral outer wall and the valve body
221.Sealing is provided by seal assembly, auxiliary seal and dust-proof work are used as by the first airtight and watertight padding and the second airtight and watertight padding
With, prevent media particle enter cause valve seat stuck, improve the sealing performance of valve, reduce the operation moment of torsion of valve, prolong
Long valve service life.As preference, valve rod and sphere are used as overall structure so that ball-valve structure is simple, easy to process
Assembling, has both saved cost, in turn simplify processing technology, installation and upkeep operation easy to ball valve.Ensure that lower valve rod and
Sphere to neutrality, avoid because caused by pressure medium is excessive sphere tilt produce in leak phenomenon；It ensure that the steel of valve rod
Property and intensity, avoid the phenomenon that the sphere after frequently switching on and valve rod depart from；It is effective anti-at the same time when ball valve replaces filler
The possibility that only residual pressure blows out upper valve rod in pipeline.Spring ring is arranged between adjusting pad and valve seat pressure ring, is improved
The elasticity of valve seat, ensure that the sealing performance of valve seat, while also function to certain dustproof effect.Spring ring uses high temperature resistant
Material, under worst hot case long-time service also can guarantee that its elasticity do not fail.The valve seat back side is respectively arranged in the front and the rear with one of sealing
Filler（Woven graphite rope）, play the role of dust-proof and auxiliary seal.Sealing surface of seat both sides are provided with doctor blade device, are opened in ball valve
Energy automatic scraping removes the foul and solid particle being bonded on ball seal face when closing, and keeps the cleaning in ball seal face, ensures ball
Body is bonded well with valve seat, and ball valve has good sealing performance all the time, so as to ensure that the reliability that ball valve opens and closes.
In the present embodiment, as shown in the figure, the sealing ring is flexible graphite sealing ring.Soft graphite has, and has
There are extremely strong resistance to pressure, pliability, plasticity and self lubricity.
In the present embodiment, as shown in the figure, described sealing ring one end is correspondingly provided with inclined-plane 531 with the slope.Pass through bullet
Spring determines sealing ring on the slope, and mutual inclined-plane coordinates, and more preferably makes power.
In the present embodiment, as shown in the figure, the spring ring is axial to be additionally provided with adjusting pad 55 between the valve body.
In the present embodiment, as shown in the figure, the valve body includes left valve barrel 20 and right valve barrel 30, the left valve barrel 2 and the right side
Valve body 3 connects 6 by fastening stud.Using the valve body of separately-loaded, assembling is easily facilitated.
In the present embodiment, as shown in the figure, being equipped with spirotallic gasket 7 between left valve barrel and the right valve barrel.Strengthen sealing effect
Fruit, prevents from revealing.
In the present embodiment, as shown in the figure, the valve seat is equipped with scraper part 27, the valve seat with the ball seal pair
Relatively described scraper part is equipped with groove 28.When ball valve opens and closes, energy automatic scraping removes the foul and solid being bonded on ball seal face
Particle, keeps the cleaning in ball seal face, ensures that sphere is bonded well with valve seat, and debris can enter in groove.
Embodiment is not construed as the limitation to utility model, but any spiritual improvements introduced based on utility model, all
Should be within the protection domain of utility model.
Claims (7)
1. a kind of hard seal ball valve, including valve body（1）, the interior valve seat for being equipped with sealing and coordinating of the valve body（2）With sphere（3）, institute
State and valve rod is integrally formed with sphere（4）, seal assembly is equipped between the valve seat peripheral outer wall and the valve body（5）, its feature
It is：The seal assembly includes the spring ring being equipped with successively from outside to inside（51）, valve seat pressure ring（52）And sealing ring（53）, institute
State valve seat（2）Including pedestal（21）, bulge loop（22）With the slope for connecting the pedestal and bulge loop（23）, the spring ring is set in
Outside the pedestal, described spring pocket one end compresses cooperation with the valve body axial direction inner wall, and the other end is made by the valve seat pressure ring
With on the sealing ring, the sealing ring top pressure is set between the slope back, the pedestal circumferential direction wall and the valve body
There is the first airtight and watertight padding（211）, the second airtight and watertight padding is equipped between the bulge loop peripheral outer wall and the valve body（221）.
A kind of 2. hard seal ball valve according to claim 1, it is characterised in that：The sealing ring is flexible graphite sealing
Circle.
A kind of 3. hard seal ball valve according to claim 1, it is characterised in that：Described sealing ring one end and the slope pair
Inclined-plane should be equipped with（531）.
A kind of 4. hard seal ball valve according to claim 3, it is characterised in that：The spring ring it is axial with the valve body it
Between be additionally provided with adjusting pad（55）.
A kind of 5. hard seal ball valve according to claim 4, it is characterised in that：The valve body includes left valve barrel（20）And the right side
Valve body（30）, the left valve barrel（20）And right valve barrel（30）Connected by fastening stud（6）.
A kind of 6. hard seal ball valve according to claim 5, it is characterised in that：Between the left valve barrel and the right valve barrel
Equipped with spirotallic gasket（7）.
A kind of 7. hard seal ball valve according to claim 6, it is characterised in that：On the valve seat and the ball seal pair
Equipped with scraper part（27）, the relatively described scraper part of the valve seat is equipped with groove（28）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721391075.2U CN207364321U (en) | 2017-10-26 | 2017-10-26 | A kind of hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721391075.2U CN207364321U (en) | 2017-10-26 | 2017-10-26 | A kind of hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207364321U true CN207364321U (en) | 2018-05-15 |
Family
ID=62421288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721391075.2U Active CN207364321U (en) | 2017-10-26 | 2017-10-26 | A kind of hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207364321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667952A (en) * | 2018-12-29 | 2019-04-23 | 武昌船舶重工集团有限公司 | A kind of floating hard seal ball valve of high reliability |
-
2017
- 2017-10-26 CN CN201721391075.2U patent/CN207364321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667952A (en) * | 2018-12-29 | 2019-04-23 | 武昌船舶重工集团有限公司 | A kind of floating hard seal ball valve of high reliability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 no.1921 Binhai 1st Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: Founder Valve Group Co.,Ltd. Address before: Yongjia oubeizhen Wenzhou County of Zhejiang province 325102 city and village Patentee before: FANGZHENG VALVE GROUP Co.,Ltd. |