CN205136628U - Circular arc sealing sleeve governing valve - Google Patents
Circular arc sealing sleeve governing valve Download PDFInfo
- Publication number
- CN205136628U CN205136628U CN201520866165.7U CN201520866165U CN205136628U CN 205136628 U CN205136628 U CN 205136628U CN 201520866165 U CN201520866165 U CN 201520866165U CN 205136628 U CN205136628 U CN 205136628U
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- CN
- China
- Prior art keywords
- sleeve
- valve
- flexible graphite
- metal flexible
- case
- 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 circular arc sealing sleeve governing valve. Constitute including the compound I of pad of valve body, metal flexible graphite, sleeve, case, metal flexible graphite wound gasket II, metal flexible graphite wound gasket III, valve rod, valve gap equipment, for the inclined plane between in the sleeve round arch two face directly, the case be the cylinder, and cylinder periphery and cylinder bottom surface combination department be the arc surface, constitution upper thread seal structure when the arc surface of case and telescopic inclined plane contact. The effect is: the contacts of two sealed faces in case and the sleeve have adopted arc surface and the upper thread seal structure that the inclined plane contacted to make the performance of valve obtain great improvement, and the life -span obtains the extension, reveal grade IV grades from the original national standard GBT4213 -2008 and bring up to VI grades.
Description
Technical field
The utility model relates to a kind of modulating valve, particularly a kind of circular arc seal sleeve modulating valve.
Background technique
The face seal form of inclined-plane and contact of incline plane is adopted between current sleeve adjusting valve sleeve and spool, require that the angle on two inclined-planes must be completely the same, just seal request can be reached, this structure has strict form and position tolerance and size tolerance requirements to sleeve and spool when machining, when assembling to parallelism, concentricity also there is strict demand, be easy to positional error when producing mach size deviation and assembling, two inclined-planes are difficult to ensure to seal completely face-to-face, do not reach seal request, leakage rate is larger, IV grade that generally can only be up to state standards in GB/T4213-2008.
Summary of the invention
In view of prior art Problems existing, the utility model provides a kind of circular arc seal sleeve modulating valve.This valve adopts inclined-plane and circular arc to form upper thread and seals, and the form sealed by upper thread brings up to the leakage class of valve VI grade in standard GB/T/T4213-2008.
The utility model for achieving the above object, the technological scheme adopted is: a kind of circular arc seal sleeve modulating valve, comprise valve body, metal flexible graphite composite pad I, sleeve, spool, metal flexible graphite wound gasket II, metal flexible graphite wound gasket III, valve rod, valve gap assembling formation, it is inclined-plane between described sleeve 1 two of enclosing in projection face directly, it is characterized in that: described spool is cylindrical body, cylindrical body circumferential surface and junction, cylindrical body bottom surface are arc surface, form upper thread sealing configuration during the contact of incline plane of the arc surface of spool and sleeve.
The beneficial effects of the utility model are: the contact of spool and sleeve two sealing surfaces, have employed the upper thread sealing configuration that arc surface contacts with inclined-plane, under the prerequisite that cost does not increase, reduce sleeve and the form and position tolerance of spool when machining and the requirement of tolerance of size, with the requirement of parallelism and concentricity when assembling, reach the seal request of valve, reduce leakage rate, the performance of valve is greatly improved, life-span is extended, and reveals grade and brings up to VI grade from IV grade original standard GB/T/T4213-2008.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of A in Fig. 1;
Fig. 3 is the schematic diagram of the utility model spool.
Embodiment
As shown in Figure 1 to Figure 3, a kind of circular arc seal sleeve modulating valve, comprises valve body 1, metal flexible graphite composite pad I2, sleeve 3, sealing surface 4, spool 4, metal flexible graphite wound gasket II5, metal flexible graphite wound gasket III6, valve rod 7, valve gap 8 fits together formation.
Be inclined-plane 3-1-1 between sleeve 3 one two of enclosing in protruding 3-1 face directly, be the sealing surface of sleeve 3.
Spool 4 is cylindrical body, and cylindrical body circumferential surface and junction, cylindrical body bottom surface are a circle arc surface 4-1, are the sealing surface of spool 4.
When the valve is closed, spool 4 is depressed, the arc surface 4-1 of spool 4 always has a circle summit and encloses inclined-plane 3-1-1 with one of sleeve 3 and contact, form the upper thread sealing configuration of a week, easilier than the sealing configuration on prior art inclined-plane and inclined-plane to realize, the requirement of machining and assembling is also reduced accordingly, reveals grade and bring up to VI grade.
Claims (1)
1. a circular arc seal sleeve modulating valve, comprise valve body (1), metal flexible graphite composite pad I(2), sleeve (3), spool (4), metal flexible graphite wound gasket II(5), metal flexible graphite wound gasket III(6), valve rod (7), valve gap (8) assembling is formed, it is inclined-plane (3-1-1) between described sleeve (3) 1 two of enclosing in protruding (3-1) face directly, it is characterized in that: described spool (4) is cylindrical body, cylindrical body circumferential surface and junction, cylindrical body bottom surface are arc surface (4-1), the arc surface (4-1) of spool (4) forms upper thread sealing configuration when contacting with the inclined-plane (3-1-1) of sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866165.7U CN205136628U (en) | 2015-11-03 | 2015-11-03 | Circular arc sealing sleeve governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866165.7U CN205136628U (en) | 2015-11-03 | 2015-11-03 | Circular arc sealing sleeve governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136628U true CN205136628U (en) | 2016-04-06 |
Family
ID=55622423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520866165.7U Expired - Fee Related CN205136628U (en) | 2015-11-03 | 2015-11-03 | Circular arc sealing sleeve governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435091A (en) * | 2022-11-08 | 2022-12-06 | 哈电集团哈尔滨电站阀门有限公司 | Stop valve with multiple sealing structure |
-
2015
- 2015-11-03 CN CN201520866165.7U patent/CN205136628U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435091A (en) * | 2022-11-08 | 2022-12-06 | 哈电集团哈尔滨电站阀门有限公司 | Stop valve with multiple sealing structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20191103 |