CN202946712U - Valve seat of ball valve and ball valve comprising the same - Google Patents
Valve seat of ball valve and ball valve comprising the same Download PDFInfo
- Publication number
- CN202946712U CN202946712U CN 201220586582 CN201220586582U CN202946712U CN 202946712 U CN202946712 U CN 202946712U CN 201220586582 CN201220586582 CN 201220586582 CN 201220586582 U CN201220586582 U CN 201220586582U CN 202946712 U CN202946712 U CN 202946712U
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- Prior art keywords
- valve seat
- valve
- ball valve
- ball
- spheroid
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Abstract
The utility model relates to a valve seat of a ball valve and the ball valve comprising the valve seat. Scrapers in fit with a sphere are arranged on a valve seat body, wherein the scrapers are directly machined on the valve seat body, and a sealing surface of the sphere contacts the scrapers through the match of the sphere and the valve seat body. The valve seat of the ball valve and the ball valve comprising the valve seat have the advantages that the service life of the sphere and the service life of the valve seat body are prolonged, and therefore the service life of the ball valve is prolonged; and through the double-sided scraper type valve seat body provided with an elastic groove and the residue prevention design of a spring, the sealing performance of the ball valve and the running stability of the ball valve can be better guaranteed.
Description
Technical field
The utility model relates to the ball valve technology, is specifically related to a kind of valve seat of ball valve.
Background technique
Along with the extensive use of abrasion-proof hard seal ball valve in Coal Chemical Industry and silicon commercial plant, so the stability of the sealing of abrasion-proof hard seal ball valve and switch plays key effect to the safe operation of whole device.because the applying working condition of abrasion-proof hard seal ball valve is to carry the solid coal dust with certain degree of hardness by pressurized gas, water coal slurry, the pipeline of the granule mediums such as silica flour, therefore these hard particles flow in high-velocity fluid, the valve internals are clashed into and washed away, very easily cause the too early damage of valve seat and valve can't be used, and in medium, some small powder can be invaded the inside of valve component, be deposited in spring chamber, make spring failure, cause the valve seat can't be movable, thereby whole valve leak or valve can't be used by switch, solid coal dust in addition, water coal slurry, the media such as silica flour are easy to separate out and precipitate and stick to spheroid and valve base surface, accumulate over a long period, not only affect the sealing effect of valve, serious also directly affect the switch motion of valve.
The model utility content
For the deficiencies in the prior art, the utility model adopts a kind of valve seat of ball valve and adopts the ball valve of this valve seat.
The technical solution of the utility model is: a kind of valve seat of ball valve, be provided with the scraper suitable with spheroid on described valve seat, and suitable between described spheroid and described valve seat, the surface of spheroid and scraper are contacted.
The valve seat of above-mentioned a kind of ball valve is embedded with at least one high temperature resistant O type circle with the valve body contact segment on described valve seat.
The valve seat of above-mentioned a kind of ball valve, described scraper is fixed on valve seat, mutual facing-up between described spheroid and described valve seat.
The valve seat of above-mentioned a kind of ball valve, described valve seat is with elastic structure.
The valve seat of above-mentioned a kind of ball valve, described valve seat and valve body contact segment are provided with graphite-seal ring, the described graphite-seal ring outside is disposed with metal trim ring, wound spring, metallic adjusted pad, and described metal trim ring extruded anisotropic graphite seal ring under the effect of wound spring power and external agency thrust reaches sealing effect.
The valve seat of above-mentioned a kind of ball valve, described wound spring is wrapped up by high temperature resistant fluoroether rubber.
The valve seat of above-mentioned a kind of ball valve, described valve base surface all spray or surfacing Tungsten carbite or nickel-base alloy.
Above-mentioned ball valve, channel surface all spray or surfacing Tungsten carbite or nickel-base alloy.
Another purpose of the present utility model is to provide a kind of ball valve, and described ball valve comprises above-mentioned valve seat.
Another purpose of the present utility model is to provide a kind of ball valve, and described ball valve has comprised above-mentioned arbitrary described valve seat.
The beneficial effects of the utility model are: extended the life-span of spheroid and valve seat, therefore, also extended the working life of valve; Can better guarantee the sealing of valve and the stability of valve operation with the two-sided scraper type valve seat of elastic groove and the design of spring anti-slag.
Description of drawings
Fig. 1 is the sectional view of structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
In figure: 1, spheroid, 2, valve seat, 3, high temperature resistant O type circle, 4, graphite-seal ring, 5, the metal trim ring, 6, wound spring, 7, the metallic adjusted pad.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
the utility model as shown in Fig. 1-2, comprise: valve body, spheroid 1 and valve seat 2, be provided with the scraper suitable with spheroid 1 on described valve seat 2, described scraper is fixed on valve seat 2, mutual facing-up between described spheroid and described valve seat, described facing-up refers to two parts that match, adding lapping paste at its combination surface grinds it mutually, to reach good contact, sealing surfaces and the scraper of spheroid 1 are contacted, valve is being opened, in closing process, scraper edge on valve seat 2 plays scraping action to spheroid 1 adsorption thing, effectively prevent deposition and the adhesion of the granule medium of 2 of spheroid 1 and valve seats, has self-cleaning function, guarantee sealing effect and the action stability of valve.Described valve seat 2 is with elastic structure, can be with the metal seat valve 2 of elastic groove structural design, also can install high-temperature resistant rubber parcel wound spring device additional, thereby realize dynamic compensation, solved the excessive friction square that causes due to thermal expansion and valve seat 2 wearing and tearing and seal clearance increase to the impact of valve seal effect.
The valve seat 2 of above-mentioned a kind of ball valve, described valve seat 2 is embedded with at least one high temperature resistant O type circle 3 with the valve body contact segment.
The valve seat 2 of above-mentioned a kind of ball valve, described valve seat 2 and valve body contact segment are provided with graphite-seal ring 4, described graphite-seal ring 4 outsides are disposed with metal trim ring 5, wound spring 6, metallic adjusted pad 7, and described metal trim ring 5 extruded anisotropic graphite seal ring 4 under the effect of wound spring 6 power and external agency thrust reaches sealing effect.
The valve seat 2 of above-mentioned a kind of ball valve, described wound spring 6 is wrapped up by high temperature resistant fluoroether rubber, spring adopts wear-resistant, high performance INCONEL X750 material, due to spring outsourcing thermostable fluorine ether rubber ring, avoided the micro powder in the medium to enter in spring chamber, cause the situation of spring failure to occur, guarantee the work that spring is permanently effective, thereby guaranteed the stability of valve seal and valve operation.
The valve seat 2 of above-mentioned a kind of ball valve, described valve seat 2 surfaces all spray or surfacing Tungsten carbite or nickel-base alloy, having solved the hard particles in the medium produces the valve internals under the high-velocity fluid effect and clashes into and wash away, the problem that very easily to cause material own be Austenitic Stainless Steel spheroid 1 can't use valve with the too early damage of valve seat 2, thereby the working life of having improved whole valve.
Above-mentioned ball valve, channel surface all sprays or surfacing Tungsten carbite or nickel-base alloy, having solved the hard particles in the medium produces the valve internals under the high-velocity fluid effect and clashes into and wash away, the problem that very easily to cause material own be Austenitic Stainless Steel spheroid 1 can't use valve with the too early damage of valve seat 2, thereby the working life of having improved whole valve.
Another purpose of the present utility model is to provide a kind of ball valve, and described ball valve comprises above-mentioned valve seat 2.
Another purpose of the present utility model is to provide a kind of ball valve, and described ball valve has comprised above-mentioned arbitrary described valve seat 2.
Because valve seat 2 floats, therefore need prevent that also medium from leaking between valve seat 2 and valve body, high temperature resistant O type circle 3 is first sealings, it is the second sealing that metal trim ring 5 extruded anisotropic graphite seal ring 4 under the effect of high temperature resistant fluoroether rubber parcel wound spring 6 power and medium thrust reaches sealing effect, and double seal can guarantee that the valve static seal satisfies the needs of various operating modes.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. the valve seat of a ball valve is characterized in that: be provided with the scraper suitable with spheroid on described valve seat, and suitable between described spheroid and described valve seat, the surface of spheroid and scraper are contacted.
2. the valve seat of a kind of ball valve according to claim 1, is characterized in that: be embedded with at least one high temperature resistant O type circle with the valve body contact segment on described valve seat.
3. the valve seat of a kind of ball valve according to claim 1, it is characterized in that: described scraper is fixed on valve seat, facing-up mutually between described spheroid and described valve seat.
4. the valve seat of a kind of ball valve according to claim 1, it is characterized in that: described valve seat is with elastic structure.
5. the valve seat of a kind of ball valve according to claim 1 and 2, it is characterized in that: described valve seat and valve body contact segment are provided with graphite-seal ring, the described graphite-seal ring outside is disposed with metal trim ring, wound spring, metallic adjusted pad, and described metal trim ring extruded anisotropic graphite seal ring under the effect of wound spring power and external agency thrust reaches sealing effect.
6. the valve seat of a kind of ball valve according to claim 5, it is characterized in that: described wound spring is wrapped up by high temperature resistant fluoroether rubber.
7. the valve seat of a kind of ball valve according to claim 1 and 2, it is characterized in that: described valve base surface all sprays or surfacing Tungsten carbite or nickel-base alloy.
8. a ball valve, is characterized in that: comprise valve seat as claimed in claim 1.
9. a ball valve, is characterized in that: comprise described valve seat as arbitrary in claim 2-4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220586582 CN202946712U (en) | 2012-11-09 | 2012-11-09 | Valve seat of ball valve and ball valve comprising the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220586582 CN202946712U (en) | 2012-11-09 | 2012-11-09 | Valve seat of ball valve and ball valve comprising the same |
Publications (1)
Publication Number | Publication Date |
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CN202946712U true CN202946712U (en) | 2013-05-22 |
Family
ID=48422414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220586582 Expired - Fee Related CN202946712U (en) | 2012-11-09 | 2012-11-09 | Valve seat of ball valve and ball valve comprising the same |
Country Status (1)
Country | Link |
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CN (1) | CN202946712U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112610717A (en) * | 2021-02-01 | 2021-04-06 | 温州青鸟自控阀门有限公司 | Automatic decoking multi-layer sealing discharging ball valve with double scrapers |
CN112855979A (en) * | 2021-02-19 | 2021-05-28 | 武芳 | Anti-blocking ball valve |
-
2012
- 2012-11-09 CN CN 201220586582 patent/CN202946712U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112610717A (en) * | 2021-02-01 | 2021-04-06 | 温州青鸟自控阀门有限公司 | Automatic decoking multi-layer sealing discharging ball valve with double scrapers |
CN112610717B (en) * | 2021-02-01 | 2024-05-24 | 温州青鸟自控阀门有限公司 | Automatic decoking multi-level sealing unloading ball valve with double scrapers |
CN112855979A (en) * | 2021-02-19 | 2021-05-28 | 武芳 | Anti-blocking ball valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151109 |
|
EXPY | Termination of patent right or utility model |