CN201461998U - Triple eccentric butterfly valve - Google Patents
Triple eccentric butterfly valve Download PDFInfo
- Publication number
- CN201461998U CN201461998U CN2009200906491U CN200920090649U CN201461998U CN 201461998 U CN201461998 U CN 201461998U CN 2009200906491 U CN2009200906491 U CN 2009200906491U CN 200920090649 U CN200920090649 U CN 200920090649U CN 201461998 U CN201461998 U CN 201461998U
- Authority
- CN
- China
- Prior art keywords
- valve
- seal ring
- sealing ring
- butterfly
- butterfly plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a triple eccentric butterfly valve which comprises a valve body. A valve cavity running through the valve body is arranged in the valve body; a sealing ring table is arranged in the valve cavity; a butterfly plate is rotationally assembled in the valve cavity; a self-compensation sealing ring is fixedly arranged on the side of the butterfly plate near to the sealing ring table; a hard sealing ring is arranged on the sealing ring table in a position corresponding to the self-compensation sealing ring; and opposite sealing matching surfaces are arranged between the self-compensation sealing ring and the hard sealing ring. In the utility model, the self-compensation sealing ring fixedly arranged on the side of the butterfly plate near to the sealing ring table has self-compensation function, which means when one part of the sealing ring is worn, the part that is not worn can compensate for the worn part and enable the sealing surface of the sealing ring to be under a good sealing state, therefore, the service life of the valve is greatly prolonged.
Description
Technical field
The utility model relates to a kind of three eccentric butterfly valve, belongs to valve technology field.
Background technique
At present, butterfly valve obtains using very widely in a plurality of fields such as oil, chemical industry, metallurgy, water power as a kind of parts that are used for realizing pipe-line system break-make and flow control.Existing a kind of more advanced butterfly valve is three eccentric hard seal butterfly valves.So-called three off-centre are that valve shaft axis and butterfly plate center have an offset or dish b; The valve opening axis of valve shaft axis and valve body has an offset or dish e; The surface of contact of valve body and butterfly plate is a sealing surface, and the sealing face is a special-shaped conical surface, and the cone angle of this conical surface is 2 α, the angle biasing that between the valve opening axis of the axis of this conical surface and valve body an angle to be arranged be β.Because the supplier of existing its sealing surface of three eccentric butterfly valve all is hard materials, then it is sealed into hard sealing, can produce relative wearing and tearing like this in the opening-closing process of valve, reduces the sealing effect of valve, reduces the working life of valve.
The model utility content
The purpose of this utility model provides a kind of sealing surface to be had from mending function, guarantees sealing effect, the three eccentric butterfly valve that effectively prolongs the working life of valve.
For achieving the above object, the utility model adopts following technological scheme: a kind of three eccentric butterfly valve, comprise valve body, be provided with the valve pocket that connects valve body in the valve body, be provided with a seal ring platform in the valve pocket, be rotatably equipped with butterfly plate in the described valve pocket, be installed with from mending seal ring near seal ring platform one side on the described butterfly plate, be provided with the hard seal ring corresponding to mending the seal ring position certainly on the described seal ring platform, describedly be provided with the relative face that is sealed and matched from mending between seal ring and the hard seal ring.
Described to mend seal ring is activated carbon thin slice group, this activated carbon thin slice group is made up of the above activated carbon thin slice of one deck, and this activated carbon thin slice is fitted in the sealed sides of butterfly plate by being arranged at pressing plate on the butterfly plate.
The described face of being sealed and matched is the conical surface.
Three eccentric butterfly valve of the present utility model, be installed with from mending seal ring near seal ring platform one side on its butterfly plate, have from mending function from mending seal ring, promptly when the sealing circle is worn, the unworn position of seal ring can compensate to frayed position, make the sealing surface of sealing circle be in a better sealing state, can prolong the working life of valve so greatly.It is pointed out that in addition this mends seal ring certainly is activated carbon thin slice group,, so also can alleviate the wearing and tearing at sealing surface place, help the prolongation in the working life of valve because activated carbon has lubrication.Also have, described sealing surface is a conical surface, adopts the conical surface can improve sealing effect, and makes things convenient for the keying of valve, also can reduce wearing and tearing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Shown in Figure 1, three eccentric butterfly valve of the present utility model, comprise valve body 4, be provided with the valve pocket that connects valve body in the valve body 4, be provided with in the valve pocket with valve body 4 and open and close the butterfly plate 11 that cooperates, be installed with valve rod 10 on the butterfly plate 11, the upper end that valve rod 10 upper ends pass valve body 4. valve bodies 4 is equipped with a support 15 by bolt, by bolt a turbine box 17 is installed on the support 15, the output shaft of turbine box 17 cooperates with valve rod 10 transmissions. be provided with a seal ring platform in the described valve pocket, side near butterfly plate 11 on the seal ring platform is installed with a hard seal ring 6 by bolt 5, side near the seal ring platform on the described butterfly plate 11 is provided with from mending seal ring 8, from mending seal ring 8 is by the laminar activated carbon thin slice of the activated carbon more than one deck group, this is mended seal ring 8 certainly and is fixed on the butterfly plate 11 by sealing trim ring 7, from mending seal ring 8 and hard seal ring 6 corresponding being sealed and matched, its surface of contact is a sealing surface, and the sealing face is a conical surface.
Claims (3)
1. three eccentric butterfly valve, comprise valve body, be provided with the valve pocket that connects valve body in the valve body, be provided with a seal ring platform in the valve pocket, be rotatably equipped with butterfly plate in the described valve pocket, it is characterized in that: be installed with from mending seal ring near seal ring platform one side on the described butterfly plate, be provided with the hard seal ring corresponding to mending the seal ring position certainly on the described seal ring platform, describedly be provided with the relative face that is sealed and matched from mending between seal ring and the hard seal ring.
2. three eccentric butterfly valve according to claim 1, it is characterized in that: described is activated carbon thin slice group from mending seal ring, this activated carbon thin slice group is made up of the above activated carbon thin slice of one deck, and this activated carbon thin slice is fitted in the sealed sides of butterfly plate by being arranged at pressing plate on the butterfly plate.
3. three eccentric butterfly valve according to claim 1 and 2 is characterized in that: the described face of being sealed and matched is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200906491U CN201461998U (en) | 2009-06-03 | 2009-06-03 | Triple eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200906491U CN201461998U (en) | 2009-06-03 | 2009-06-03 | Triple eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461998U true CN201461998U (en) | 2010-05-12 |
Family
ID=42389351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200906491U Expired - Fee Related CN201461998U (en) | 2009-06-03 | 2009-06-03 | Triple eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465383A (en) * | 2016-01-08 | 2016-04-06 | 无锡科磊阀业有限公司 | Eccentric butterfly valve structure with self-compensating function |
-
2009
- 2009-06-03 CN CN2009200906491U patent/CN201461998U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465383A (en) * | 2016-01-08 | 2016-04-06 | 无锡科磊阀业有限公司 | Eccentric butterfly valve structure with self-compensating function |
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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: 20100512 Termination date: 20120603 |