CN202118297U - Metal sealing ball valve with single valve seat - Google Patents
Metal sealing ball valve with single valve seat Download PDFInfo
- Publication number
- CN202118297U CN202118297U CN2011202329231U CN201120232923U CN202118297U CN 202118297 U CN202118297 U CN 202118297U CN 2011202329231 U CN2011202329231 U CN 2011202329231U CN 201120232923 U CN201120232923 U CN 201120232923U CN 202118297 U CN202118297 U CN 202118297U
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- China
- Prior art keywords
- valve
- valve seat
- seat
- housed
- gap
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- 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 provides a metal sealing ball valve with a single valve seat, which comprises a valve body, a valve cover, a ball body, a valve seat, a valve shaft and a stuffing box. The valve body is fixedly connected with the valve cover, the valve seat is mounted in the valve cover, and a plate spring is arranged between the valve seat and the valve cover. Stellite hard alloy is arranged on the valve seat by means of bead welding to form a sealing pair with the ball valve. A stop cushion is arranged between a valve shaft step and the stuffing box. A counter bore is arranged at the bottom of the valve shaft, and a spring is arranged between the counter bore and the ball body. O-shaped rings are further arranged between two ends of the valve seat and the valve cover, and carbon seal rings are further arranged among the O-shaped rings and the plate spring. The metal sealing ball valve with the single valve seat has the advantages that the valve utilizes a structure which is provided with the single valve seat and capable of preventing leakage at stuffing positions and avoiding block of the valve seat, and is reliable in sealing and long in service life.
Description
Technical field
The utility model relates to a kind of valving, particularly relates to the metal seal ball valve that a kind of Coal Chemical Industry industry is used.
Background technique
Along with the continuous development of domestic Coal Chemical Industry industry, the production technology that Texaco's water coal slurry pressure gasification is produced water gas is adopted by a large amount of.This technology is under 1350 ℃, high temperature more than the 40MPa, condition of high voltage, makes water coal slurry and oxygen carry out redox reaction, makes coal partly become coal gas.This technological requirement valve is applicable to working conditions such as high temperature, high pressure, strong erosion.Phenomenons such as the metal seal ball valve that uses at present uses bivalve seat symplex structure usually, and entering such as dust, lime-ash cause the filler place to be leaked under abominable operating mode, valve seat is stuck, valve is short working life.
Summary of the invention
Be prone to stuck, filler place leakage in order to overcome existing metal seal ball valve valve seat, the deficiency that working life is short, the utility model provides a kind of single valve seat metal seal ball valve.
It is a kind of single valve seat metal seal ball valve that the utility model solves the technological scheme that its technical problem adopted, and comprises valve body, valve gap, spheroid, valve seat, valve shaft, stuffing box, and valve body and valve gap are fixedly connected; Valve seat is installed in the valve gap, between valve seat and the valve gap leaf spring is housed, built-up welding Si Taili cemented carbide on the valve seat; Form sealing pair with spheroid, between valve shaft step and stuffing box, thrust pad is housed, valve seat is one; The valve shaft bottom has counterbore, between counterbore and spheroid, spring is housed.
O shape circle also is housed between the two ends of valve seat and valve gap, between O shape circle and leaf spring carbon seal ring is housed also.
The beneficial effect of the utility model is to adopt single valve seat, the leakage of anti-filler place and prevent the stuck structure of valve seat, and sealing is reliable, long service life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the tectonic maps of present embodiment
Among the figure: 1. stuffing box; 2. thrust pad; 3. valve body; 4. valve shaft; 5. leaf spring; 6. spring; 7. spheroid; 8. valve seat; 9.O shape circle; 10. carbon seal ring; 11. valve gap.
Embodiment
As shown in Figure 1, a kind of single valve seat metal seal ball valve comprises valve body 3, valve gap 11, spheroid 7, valve seat 8, valve shaft 4, stuffing box 1, and valve body 3 is fixedly connected with valve gap 11; Valve seat 8 is installed in the valve gap 11, between valve seat 8 and the valve gap 11 leaf spring 5 is housed, built-up welding Si Taili cemented carbide on the valve seat 8; Form sealing pair with spheroid 7, between valve shaft 4 steps and stuffing box 1, thrust pad 2 is housed, valve seat 8 is one; Be contained in suction side, have counterbore, spring 6 is housed at counterbore and 7 of spheroids in valve shaft 4 bottoms.Guarantee that valve shaft 4 withstands thrust pad 2 all the time, prevent enterings stuffing box such as dust, lime-ash effectively and make the leakage of filler place.O shape circle 9 also is housed between the two ends of valve seat 8 and valve gap 11; O shape circle 9 and 5 of leaf springs also are equipped with carbon seal ring 10; O shape circle 9 adds the double seal protection of carbon seal ring 10, can effectively avoid making the stuck inefficacy of valve seat system owing to the entering of lime-ash, has prolonged the working life of valve greatly.
Claims (2)
1. a single valve seat metal seal ball valve comprises valve body, valve gap, spheroid, valve seat, valve shaft, stuffing box, and valve body and valve gap are fixedly connected; Valve seat is installed in the valve gap, between valve seat and the valve gap leaf spring is housed, built-up welding Si Taili cemented carbide on the valve seat; Form sealing pair with spheroid, between valve shaft step and stuffing box, thrust pad is housed, it is characterized in that: described valve seat is one; Described valve shaft bottom has counterbore, between counterbore and spheroid, spring is housed.
2. single valve seat metal seal ball valve according to claim 1 is characterized in that: O shape circle also is housed between the two ends of described valve seat and the valve gap, between O shape circle and leaf spring carbon seal ring is housed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202329231U CN202118297U (en) | 2011-06-30 | 2011-06-30 | Metal sealing ball valve with single valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202329231U CN202118297U (en) | 2011-06-30 | 2011-06-30 | Metal sealing ball valve with single valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118297U true CN202118297U (en) | 2012-01-18 |
Family
ID=45459364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202329231U Expired - Fee Related CN202118297U (en) | 2011-06-30 | 2011-06-30 | Metal sealing ball valve with single valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118297U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654201A (en) * | 2012-04-12 | 2012-09-05 | 浙江力诺阀门有限公司 | Low leakage type pot cover valve |
| CN102889395A (en) * | 2012-09-29 | 2013-01-23 | 上海开维喜阀门集团有限公司 | Ultralow temperature upper-installed fixed ball valve |
| CN104121416A (en) * | 2013-04-24 | 2014-10-29 | 浙江欧维克阀门有限公司 | Packing sealing maintenance-free structure of built-in pre-tightening valve rod |
| CN113932034A (en) * | 2021-10-14 | 2022-01-14 | 江苏盐电阀门有限公司 | Intelligent ultralow-temperature ball valve capable of monitoring state of ball valve in whole process and opening at fixed time |
-
2011
- 2011-06-30 CN CN2011202329231U patent/CN202118297U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654201A (en) * | 2012-04-12 | 2012-09-05 | 浙江力诺阀门有限公司 | Low leakage type pot cover valve |
| CN102654201B (en) * | 2012-04-12 | 2014-09-10 | 浙江力诺流体控制科技股份有限公司 | Low leakage type pot cover valve |
| CN102889395A (en) * | 2012-09-29 | 2013-01-23 | 上海开维喜阀门集团有限公司 | Ultralow temperature upper-installed fixed ball valve |
| CN104121416A (en) * | 2013-04-24 | 2014-10-29 | 浙江欧维克阀门有限公司 | Packing sealing maintenance-free structure of built-in pre-tightening valve rod |
| CN113932034A (en) * | 2021-10-14 | 2022-01-14 | 江苏盐电阀门有限公司 | Intelligent ultralow-temperature ball valve capable of monitoring state of ball valve in whole process and opening at fixed time |
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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: 20120118 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |