CN202418706U - High-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve - Google Patents
High-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve Download PDFInfo
- Publication number
- CN202418706U CN202418706U CN2011204458097U CN201120445809U CN202418706U CN 202418706 U CN202418706 U CN 202418706U CN 2011204458097 U CN2011204458097 U CN 2011204458097U CN 201120445809 U CN201120445809 U CN 201120445809U CN 202418706 U CN202418706 U CN 202418706U
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Abstract
The utility model discloses a high-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve. The high-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve comprises a valve body, a valve base and a ball body in sealed contact with the valve base, and is characterized in that: a sealing ring for preventing a sealing medium from leaking from a gap between the valve base and the valve body is arranged between the valve body and the valve base; a pressing device for pressing the sealing ring is arranged on the valve body; and a valve body lug boss capable of being contacted with the valve base in a sealing way is arranged on the valve body. By adopting the structure that the high-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve comprises the valve body, the valve base and the ball body in sealed contact with the valve base, the sealing ring for preventing the sealing medium from leaking from a gap between the valve base and the valve body is arranged between the valve body and the valve base, the pressing device for pressing the sealing ring is arranged on the valve body, and the valve body lug boss capable of being contacted with the valve base in a sealing way is arranged on the valve body, the high-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve can dually seal the valve body and the valve base through the sealing ring and the valve body lug boss, so that the sealing reliability of the high-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve at high temperature and high pressure can be ensured and the medium can be prevented from leaking from the gap between the valve base and the valve body.
Description
Technical field
The utility model relates to a kind of valve, the hard dense block slag of particularly a kind of HTHP floating ball ball valve.
Background technique
Ball valve is mainly used in the break-make of controlling plumbing fixtures inner fluid, and at present, HTHP hard seal ball valve valve seat construction is divided into two kinds: a kind of is that valve seat is embedded in the valve body and valve seat hole; Utilize valve seat and valve body interference fit to reach the sealing between valve seat and valve body, prevent that medium from leaking in valve body and valve seat gap, the shortcoming of this structure is: intermetallic interference fit embeds in the valve body and valve seat hole valve seat firmly; Under worst hot case; Because material heat expansion is different, and component processing and assembling size error, cause valve seat and valve body gap to exist; Medium leaks from producing between valve seat and valve body; This just causes the erosion of valve seat rear side, causes valve seat to be scrapped in advance, particularly in the mixed medium that tiny solid particle and gas are arranged; Another kind is between valve seat and valve body, to be provided with special metal sealing device, and the structural disadvantages of this valve seat is: not only complex structure, and employing special material, special welding processing heat treatment process, and manufacture difficulty is big, and cost is high.
Summary of the invention
In order to overcome the deficiency of existing technology, the utility model provides a kind of and has the double seal effect and at the hard dense block slag of the reliable HTHP floating ball of HTHP lower seal ball valve.
The utility model solves the technological scheme that its technical problem adopted:
The hard dense block slag of a kind of HTHP floating ball ball valve; Comprise valve body, valve seat and the spheroid that contacts with valve base sealing; It is characterized in that: said valve body and valve base chamber are provided with and prevent the seal ring of sealing medium from leaking between valve seat and valve body; And valve body is provided with the squeezing unit of crush seal circle, and valve body is provided with the valve body boss that can contact with valve base sealing.
Said squeezing unit comprises the connection fastening piece that is arranged at the pressure ring on the valve body and locks this pressure ring, and pressure ring and valve seat roof pressure mutually.
Be provided with the packing ring that can contact with seal ring and valve seal respectively between said seal ring and valve body.
Said seal ring has adopted carbon seal ring.
The beneficial effect of the utility model is: comprise valve body, valve seat and the spheroid that contacts with valve base sealing; Valve body and valve base chamber are provided with and prevent the seal ring of sealing medium from leaking between valve seat and valve body; And valve body is provided with the valve body boss that can contact with valve base sealing; Thereby the utility model can carry out double seal to valve body and valve seat through seal ring and valve body boss, has guaranteed the reliability of the utility model at the HTHP lower seal, prevents that medium from leaking between valve seat and valve body.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
Fig. 1 is the generalized section of the utility model.
Embodiment
With reference to Fig. 1; The utility model discloses the hard dense block slag of a kind of HTHP floating ball ball valve; Comprise valve body 1, valve seat 2 and the spheroid 3 that contacts with valve seat 2 sealings; 2 of valve body 1 and valve seats are provided with and prevent the seal ring 4 of sealing medium from valve seat 2 and 1 leakage of valve body, and valve body 1 is provided with the squeezing unit of crush seal circle 4, and valve body 1 is provided with the valve body boss 5 that can contact with valve seat 2 sealings.
As shown in the figure, squeezing unit comprises pressure ring 6 that is arranged on the valve body 1 and the connection fastening piece 7 of locking this pressure ring 6, and pressure ring 6 and valve seat 2 roof pressure mutually.In this specific embodiment, connect fastening piece 7 and adopted bolt; Further, in order to improve sealability, seal ring 4 is provided with the packing ring 8 that can contact with seal ring 4 and valve body 1 sealing respectively with 1 of valve body, and seal ring 4 has adopted resistant to elevated temperatures carbon seal ring 4.
The working principle of the utility model is following: the utility model floats spheroid 3 under the effect of medium power and mechanical force, promotes spheroid 3 and compresses valve seat 2, forms the sealing of 2 of spheroid 3 and valve seats, thereby cuts off medium, reaches closing function.The sealing that valve seat 2 and valve body are 1 compresses pressure ring 6 through bolt, and pressure ring 6 compresses valve seat 2, and valve seat 2 compresses Expanded graphite seal ring 4, and Expanded graphite seal ring 4 compresses gasket ring, and gasket ring compresses valve body 1, forms the sealing of 2 of Expanded graphite seal ring 4 and valve body 1, valve seats; When valve seat 2 continues to compress; Valve seat 2 is just pressed to valve body boss 5; Valve seat 2 and the sealing of valve body 1 pretension stress have been formed; Thereby carry out double seal through seal ring 4 and 5 pairs of valve bodies of valve body boss 1 with valve seat 2, guaranteed the reliability of the utility model, prevent that medium is from valve seat 2 and 1 leakage of valve body at the HTHP lower seal.
Above-mentionedly just some preferred embodiments of the utility model are illustrated and describe; But the mode of execution of the utility model is not restricted to the described embodiments; As long as it reaches the technique effect of the utility model with essentially identical means, all should belong to the protection domain of the utility model.
Claims (4)
1. the hard dense block slag of HTHP floating ball ball valve; Comprise valve body, valve seat and the spheroid that contacts with valve base sealing; It is characterized in that: said valve body and valve base chamber are provided with and prevent the seal ring of sealing medium from leaking between valve seat and valve body; And valve body is provided with the squeezing unit of crush seal circle, and valve body is provided with the valve body boss that can contact with valve base sealing.
2. the hard dense block slag of a kind of HTHP floating ball according to claim 1 ball valve, it is characterized in that: said squeezing unit comprises the connection fastening piece that is arranged at the pressure ring on the valve body and locks this pressure ring, and pressure ring and valve seat roof pressure mutually.
3. the hard dense block slag of a kind of HTHP floating ball according to claim 1 and 2 ball valve is characterized in that: be provided with the packing ring that can contact with seal ring and valve seal respectively between said seal ring and valve body.
4. the hard dense block slag of a kind of HTHP floating ball according to claim 1 ball valve, it is characterized in that: said seal ring has adopted carbon seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204458097U CN202418706U (en) | 2011-11-12 | 2011-11-12 | High-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204458097U CN202418706U (en) | 2011-11-12 | 2011-11-12 | High-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418706U true CN202418706U (en) | 2012-09-05 |
Family
ID=46743476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204458097U Expired - Lifetime CN202418706U (en) | 2011-11-12 | 2011-11-12 | High-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518828A (en) * | 2011-11-12 | 2012-06-27 | 中山铁王流体控制设备有限公司 | High temperature and high pressure floating ball hard seal lock hopper valve |
| CN107387797A (en) * | 2017-07-04 | 2017-11-24 | 神华集团有限责任公司 | Ball valve |
-
2011
- 2011-11-12 CN CN2011204458097U patent/CN202418706U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518828A (en) * | 2011-11-12 | 2012-06-27 | 中山铁王流体控制设备有限公司 | High temperature and high pressure floating ball hard seal lock hopper valve |
| CN107387797A (en) * | 2017-07-04 | 2017-11-24 | 神华集团有限责任公司 | Ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |