CN2777303Y - Ceramic ball valve - Google Patents
Ceramic ball valve Download PDFInfo
- Publication number
- CN2777303Y CN2777303Y CN 200520080210 CN200520080210U CN2777303Y CN 2777303 Y CN2777303 Y CN 2777303Y CN 200520080210 CN200520080210 CN 200520080210 CN 200520080210 U CN200520080210 U CN 200520080210U CN 2777303 Y CN2777303 Y CN 2777303Y
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- Prior art keywords
- ceramic
- valve
- pedestal
- metal
- endosome
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- Expired - Lifetime
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Abstract
The utility model relates to a ceramic ball valve which comprises a metal valve body, a ceramic valve seat, a ceramic valve core, a valve rod and a drive device, wherein the ceramic valve seat is arranged in the metal valve body, and comprises a cylindrical first seat body and a cylindrical second seat body which can be respectively butted with two segments of pipelines; the ceramic valve core forms a spherical shape, and is clamped between the first seat body and the second seat body in a rotatable way; the ceramic valve core is provided with a valve hole of which both ends can be butted with the first seat body and the second seat body; one end of the valve rod is penetrated in the metal valve body in a rotatable way and is fixedly connected with the ceramic valve core, and the other end is connected with the connected. A peripheral sleeve of the ceramic valve core is provided with a cylindrical ceramic inner body, and the peripheral wall of the ceramic inner body is respectively coated the peripheral walls of inner end parts of the first seat body and the second seat body at the parts adjacent to both end parts. Because the utility model has the ceramic inner body structure, the metal valve body can not contact fluid in a pipeline, and the metal valve body can not be corroded and abraded by the fluid; thus, the service life can be extended thereby.
Description
Technical field
The utility model relates to a kind of ceramic ball valve, specifically is meant a kind of by improving the ceramic ball valve that structure prolongs its working life.
Background technique
Ceramic ball valve is better than other materials at resistance to chemical attack, wear-resistant, high temperature resistant, anti-aspect of performance such as wash away, therefore ceramic ball valve is widely used in being difficult to use under the mal-condition of metal or other materials, as chemical device, incinerating waste material equipment, flue gas desulfurization device or the like.
Existing ceramic ball valve structure generally comprises metal valve body, ceramic valve seat, spheres of ceramic spool, valve rod and drive unit, metal valve body connects two sections fluid lines, ceramic valve seat is located in the metal valve body, the spheres of ceramic spool is located between two ceramic valve seats rotationally, valve rod one end is connected with on the spheres of ceramic spool, the other end extends to outside the metal valve body and with drive unit and links to each other, thereby drive unit can drive the spheres of ceramic valve core rotation by valve rod, switches thereby pipeline is blocked between the two states at connected sum.
The unlatching of ceramic ball valve is to dock with two segment pipes by the passage in its spheres of ceramic spool to realize, and when passage in the spheres of ceramic spool and the dislocation of two segment pipes, ceramic ball valve is in closed condition.When this ceramic ball valve is in semi-closed state, access portal part in the spheres of ceramic spool faces toward the inwall of metal valve body facing to pipeline another part of its connection, therefore, ducted fluid can contact with the metal valve body inwall, thereby makes metal valve body be corroded and wear and tear and reduce its working life.
In addition, the end that valve rod is connected with the spheres of ceramic spool is a multi-edge column-shaped, correspondingly on the spheres of ceramic spool is provided with the polygonal hole that is mated, thereby valve rod can drive the spheres of ceramic valve core rotation.Because valve rod directly contacts with this polygonal hole, make the spheres of ceramic spool impaired and reduce its working life in the rotation process easily.
The model utility content
The utility model provides a kind of ceramic ball valve, and its metal valve body inwall reduced the shortcoming in life-span because of directly contacting to be corroded and wear and tear with ducted fluid when its main purpose was to overcome existing ceramic ball valve and is in half-open semi-closure; It is unreasonable because of the linkage structure of its valve rod and ceramic valve core that another purpose of the present utility model is to overcome existing ceramic ball valve, causes the shortcoming of ceramic valve core breakage easily.
The utility model adopts following technological scheme: a kind of ceramic ball valve, comprise metal valve body, ceramic valve seat, ceramic valve core, valve rod and drive unit, ceramic valve seat is located in the metal valve body, comprise columnar first pedestal and second pedestal that can dock with two segment pipes respectively, ceramic valve core is spherical, be located in rotationally between first pedestal and second pedestal, ceramic valve core be provided with two ends can with first pedestal, the valve opening of second pedestal butt joint, one end of valve rod is arranged in the metal valve body rotationally, and fixedly connected with ceramic valve core, the other end is connected with a drive unit, the ceramic valve core periphery is arranged with a columnar ceramic endosome, and this pottery endosome inner circle wall is coated on respectively on the periphery wall of first pedestal and the inner end of second pedestal by two end part.When valve core rotation when the half-open semi-closure, the fluid in the pipeline is subjected to the obstruct of this pottery endosome, can not contact with the metal valve body inwall, but contact with this pottery endosome, thereby make metal valve body can not be subjected to the corrosion and the wearing and tearing of pipeline inner fluid.
The inner end that aforementioned valve rod is connected with ceramic valve core is a multi-edge column-shaped, the corresponding multi-edge column-shaped hole that is provided with on the ceramic valve core, and the inner end of valve rod is inserted in this polygon prism hole, is provided with a metal lining between the inner end periphery wall of valve rod and this polygon prism hole sidewall.This metal lining makes the polygon prism hole perisporium of ceramic valve core more not be subject to the valve rod influence and breakage.
Aforementioned first pedestal and the second pedestal inner end outer circumferential face formation collar flange that all stretches out, described ceramic endosome inner circle wall is coated on this two collar flanges periphery respectively by two end part, be folded with an Expanded graphite sealing gasket between an end face of this pottery endosome and the exterior edge face of corresponding collar flange and metal valve body inwall, the other end of this pottery endosome and the exterior edge face of corresponding collar flange thereof also are provided with an Expanded graphite sealing gasket, and this Expanded graphite sealing gasket outside is provided with the gland that it is inwardly compressed.
The collar flange outer circumferential face of this first pedestal and second pedestal and ceramic endosome inner circle wall are respectively equipped with viton seal ring by between the two end part, also are provided with viton seal ring between the periphery wall of the pedestal that described gland inner circle wall is corresponding with it.
Above-mentioned sealing configuration has guaranteed that ducted fluid can not leak to outside ceramic valve seat and the ceramic endosome and the corroding metal valve body.
Aforesaid metal valve body and ceramic endosome opposed inside wall middle part be depression slightly outwards, forms an annular space, so that ceramic endosome more is not subject to the metal valve body influence and wearing and tearing or damaged.
Aforesaid valve rod is provided with the Expanded graphite stuffing box packing of two places between axial diverse location and metal valve body, to guarantee good air-tightness.
By above-mentioned description to the utility model structure as can be known, compare, the utlity model has following advantage: one with prior art, owing to have body structure in the pottery, metal valve body can not contact with the fluid in the pipeline, has guaranteed that it can not be subjected to the corrosion and the wearing and tearing of fluid, thereby has prolonged the life-span; Two, have good sealing structure, the fluid in the pipeline can not revealed and the corroding metal valve body; Three, the reasonable in design of valve seat, ceramic endosome has been avoided ceramic frangible defective because of having own; Four, dismantle convenience easy to maintenance.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model;
Fig. 2 is the three-dimensional exploded view of the utility model ceramic valve seat, ceramic valve core, ceramic endosome, valve rod.
Specific embodiment
Specific embodiment of the utility model sees figures.1.and.2, ceramic valve seat, ceramic valve core 3, valve rod 4 and drive unit 5 that this ceramic ball valve comprises metal valve body 1, is made up of first pedestal 21 and second pedestal 22.
The shape of metal valve body 1 is roughly the cylinder of a horizontal drain, and two end periphery stretches out to form respectively bulge loop 11,12 is installed, and metal valve body 1 is installed on the bulge loop 11,12 and can be fixedlyed connected with two segment pipes by this.First pedestal 1, second pedestal 2 also are cylindrical shape, and left and right symmetrically is embedded at the left and right sides in metal valve body 1 cavity.First pedestal 1 all stretches out with second pedestal, 2 relative inner end outer circumferential faces and forms collar flange 211,221 respectively, other has the ceramic endosome 6 of a simple shape, be embedded at the middle part in metal valve body 1 cavity, its inner circle wall is coated on this two collar flanges, 211,212 peripheries respectively by two end part, and collar flange 211,221 outer circumferential faces of this first pedestal 21 and second pedestal 22 and ceramic endosome 6 inner circle walls are respectively equipped with viton seal ring 81,82 by between the two end part.
One end of cylindrical metal valve body 1 cavity extends internally and forms a clasp 13, be fastened on outside the corresponding end-faces of the outer side surface of collar flange 211 of first pedestal 21 and ceramic endosome 6, so that first pedestal 21 and ceramic endosome 6 can outwards not slide, be folded with an Expanded graphite sealing gasket 71 therebetween; The other end ecto-entad of metal valve body 1 cavity is inserted with the gland 9 of a sleeve shape, the periphery wall of this gland 9 is fixedlyed connected with metal valve body 1 cavity perisporium by screw-thread fit, its inner circle wall contacts with second pedestal, 22 periphery walls, surface of contact is folded with a viton seal ring 83, the outer side surface of the interior edge face of this gland 9 and the collar flange 221 of second pedestal 22 and the corresponding end-faces of ceramic endosome 6 are relative, also are folded with an Expanded graphite sealing gasket 72 therebetween.
Aforesaid drive unit 5 is a Pneumatic actuator, and its structure and working principle are prior art, and main effect is to drive valve rod 4 to rotate, and is not described in detail in this.This drive unit 5 is fixedlyed connected with metal valve body 1 by a scaffold 51.Valve rod 4 is provided with two places Expanded graphite stuffing box packing 41,42 between axial diverse location and metal valve body 1, graphite grazing filler 41 outsides are provided with Gland 43, and Gland 43 is fixed on the metal valve body 1 by a fixing device 431.
Metal valve body 1 slightly outwards caves in ceramic endosome 6 opposed inside walls middle part, forms an annular space 10, so that ceramic endosome 6 more is not subject to metal valve body 1 influence and wearing and tearing or damaged.
Above-mentioned only is an embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (6)
1, a kind of ceramic ball valve, comprise metal valve body, ceramic valve seat, ceramic valve core, valve rod and drive unit, ceramic valve seat is located in the metal valve body, comprise columnar first pedestal and second pedestal that can dock with two segment pipes respectively, ceramic valve core is spherical, be located in rotationally between first pedestal and second pedestal, ceramic valve core be provided with two ends can with first pedestal, the valve opening of second pedestal butt joint, one end of valve rod is arranged in the metal valve body rotationally, and fixedly connected with ceramic valve core, the other end is connected with a drive unit, it is characterized in that: the ceramic valve core periphery is arranged with a columnar ceramic endosome, and this pottery endosome inner circle wall is coated on respectively on the periphery wall of first pedestal and the inner end of second pedestal by two end part.
2, a kind of ceramic ball valve as claimed in claim 1, it is characterized in that: the inner end that described valve rod is connected with ceramic valve core is a multi-edge column-shaped, the corresponding multi-edge column-shaped hole that is provided with on the ceramic valve core, the inner end of valve rod is inserted in this polygon prism hole, is provided with a metal lining between the inner end periphery wall of valve rod and this polygon prism hole sidewall.
3, a kind of ceramic ball valve as claimed in claim 1, it is characterized in that: described first pedestal and the second pedestal inner end outer circumferential face formation collar flange that all stretches out, described ceramic endosome inner circle wall is coated on this two collar flanges periphery respectively by two end part, be folded with an Expanded graphite sealing gasket between an end face of this pottery endosome and the exterior edge face of corresponding collar flange and metal valve body inwall, the other end of this pottery endosome and the exterior edge face of corresponding collar flange thereof also are provided with an Expanded graphite sealing gasket, and this Expanded graphite sealing gasket outside is provided with the gland that it is inwardly compressed.
4, a kind of ceramic ball valve as claimed in claim 3, it is characterized in that: the collar flange outer circumferential face of described first pedestal and second pedestal and ceramic endosome inner circle wall are respectively equipped with viton seal ring by between the two end part, also are provided with viton seal ring between the periphery wall of the pedestal that described gland inner circle wall is corresponding with it.
5, a kind of ceramic ball valve as claimed in claim 1 is characterized in that: described metal valve body and ceramic endosome opposed inside wall middle part be depression slightly outwards, forms an annular space.
6, a kind of ceramic ball valve as claimed in claim 1 is characterized in that: described valve rod is provided with the Expanded graphite stuffing box packing of two places between axial diverse location and metal valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080210 CN2777303Y (en) | 2005-01-17 | 2005-01-17 | Ceramic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080210 CN2777303Y (en) | 2005-01-17 | 2005-01-17 | Ceramic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777303Y true CN2777303Y (en) | 2006-05-03 |
Family
ID=36744687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520080210 Expired - Lifetime CN2777303Y (en) | 2005-01-17 | 2005-01-17 | Ceramic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777303Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895123A (en) * | 2020-04-16 | 2020-11-06 | 德清安凡德新材料科技有限公司 | Valve rod and ball valve |
-
2005
- 2005-01-17 CN CN 200520080210 patent/CN2777303Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895123A (en) * | 2020-04-16 | 2020-11-06 | 德清安凡德新材料科技有限公司 | Valve rod and 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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150117 Granted publication date: 20060503 |