CN201568603U - Hard-sealing jacketed heat-preserving ball valve sealing device - Google Patents
Hard-sealing jacketed heat-preserving ball valve sealing device Download PDFInfo
- Publication number
- CN201568603U CN201568603U CN2009202569740U CN200920256974U CN201568603U CN 201568603 U CN201568603 U CN 201568603U CN 2009202569740 U CN2009202569740 U CN 2009202569740U CN 200920256974 U CN200920256974 U CN 200920256974U CN 201568603 U CN201568603 U CN 201568603U
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- ball valve
- sealing
- hard
- valve seat
- ring
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Abstract
The utility model relates to a ball valve sealing device, in particular to a hard-sealing jacketed heat-preserving ball valve sealing device, which comprises a ball body, a valve seat, a gasket ring, a compression ring and an elastic part, wherein the elastic part is arranged between the valve seat and the compression ring, and the gasket ring is arranged at the other side of the compression ring. The elastic part consists of two disk springs. The valve seat and the compression ring form a closed space for installing the elastic part. With the hard-sealing jacketed heat-preserving ball valve sealing device, the entire valve is flexible and easy to close and to open, and has good sealing performance, strong abrasion resistance and long service life.
Description
Technical field
The utility model relates to a kind of ball valve sealing device, a kind of specifically hard sealed jacket Thermal insulating ball valve seal arrangement.
Background technique
Along with China's oil refining industry is bent, sulphur recovery special valve demand increases severely, and hard sealed jacket Thermal insulating ball valve is one of requisite valve of enterprise of present petrochemical refining hydrogen sulfide device, and it has replaced the chuck insulation plug valve of tradition use in the past.Existing hard sealed jacket Thermal insulating ball valve seal arrangement is made up of spheroid 1, valve seat 2, seal ring 3, pressure ring 4 and a plate shape spring 5 as shown in Figure 1, and seal ring 3 is located between valve seat 2 and the pressure ring 4, and plate shape spring 5 is located at the outside of pressure ring 4.The working principle of this structure is that the memory elastic force by the plate shape spring 5 after the compressive strain compresses seal ring 3 sealings, and together seal ring 3, valve seat 2, pressure ring 4 are compressed to spheroid 1, form certain seal pressure, and can compensate and adjust the gap that sealing pair forms because of the metal rising-heat contracting-cold of medium temperature difference or because of wearing and tearing constantly.This structure be the first to ordering defective, its sealing elastic structure and medium are in half contact condition, can cause dielectric deposition in the gapping of spring face, resistance is big during elastic compensating, and the effect of pressure medium is arranged again, makes the elastic force of spring impaired; The secondth, by the work of a plate shape spring, elastic force is actual not to reach usage requirement, and its seal ring location arrangements is also unreasonable, is in the dynamic seal (packing) state fully, has more increased the work load of spring.So existing this structure is in uncompensated state substantially, occur during actual the use that open and close torque is very big, the switch effort, spherome surface and valve base surface serious wear make sealing pair occur phenomenons such as plucking, jam and leakage easily.
Summary of the invention
Technical problem to be solved in the utility model is: at the shortcoming of above prior art existence, a kind of hard sealed jacket Thermal insulating ball valve seal arrangement is proposed, seal ring position rational deployment, can eliminate the chance that medium deposits between spring, make whole valve opening and closing flexible, free and relaxed, good seal performance, anti-wear energy is strong, long service life.
The technological scheme that the utility model solves above technical problem is:
Hard sealed jacket Thermal insulating ball valve seal arrangement comprises spheroid, valve seat, seal ring, pressure ring and elastic member, and elastic member is located between valve seat and the pressure ring, and seal ring is located at the opposite side of pressure ring.
Elastic member is made up of two belleville springs.Valve seat and pressure ring are formed the enclosed space that elastic member is installed.
The utility model is with seal ring position rational deployment, make it be in half dynamic seal (packing) form, alleviate the spring resistance to motion, improve compensation ability, to seal elastic structure and be designed to enclosed construction, separate fully, eliminate the chance that medium deposits between spring with medium, simultaneously can not occur making the impaired phenomenon of elastic force of spring yet, can make whole valve seal pair be in automatic compensation adjustment state fully because of the effect of pressure medium.The utility model can make whole valve opening and closing flexible, free and relaxed, good seal performance, and anti-wear energy is strong, long service life.
Description of drawings
Fig. 1 is existing hard sealed jacket Thermal insulating ball valve schematic diagram of sealing device.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Embodiment one
The structure of present embodiment as shown in Figure 1, a kind of hard sealed jacket Thermal insulating ball valve seal arrangement, comprise spheroid 1, valve seat 2, seal ring 3, pressure ring 4 and two belleville springs 6, two belleville springs 6 are located between valve seat 2 and the pressure ring 4, seal ring 3 is located at the opposite side of pressure ring 4, and promptly a side of pressure ring 4 contacts with belleville spring 6, and opposite side contacts with seal ring 3, valve seat 2 is formed the enclosed space 7 that two belleville springs 6 are installed with pressure ring 4, and promptly two belleville springs 6 are installed in the enclosed space 7.
The utility model makes it be in half dynamic seal (packing) form seal ring 3 position rational deployment, alleviates belleville spring 6 resistance to motion, improves compensation ability.To seal elastic structure and be designed to enclosed construction, separate fully with medium, eliminate the chance of medium in 6 depositions of belleville spring, simultaneously can not occur making the impaired phenomenon of elastic force of belleville spring 6 yet, can make whole valve sealing structure be in automatic compensation adjustment state fully because of the effect of pressure medium.
The utility model can also have other mode of execution, and the technological scheme that equal replacement of all employings or equivalent transformation form all drops within the claimed scope of the utility model.
Claims (3)
1. hard sealed jacket Thermal insulating ball valve seal arrangement comprises spheroid, valve seat, seal ring, pressure ring and elastic member, and it is characterized in that: described elastic member is located between valve seat and the pressure ring, and described seal ring is located at the opposite side of pressure ring.
2. hard sealed jacket Thermal insulating ball valve seal arrangement as claimed in claim 1, it is characterized in that: described elastic member is made up of two belleville springs.
3. hard sealed jacket Thermal insulating ball valve seal arrangement as claimed in claim 1 or 2 is characterized in that: described valve seat and pressure ring are formed the enclosed space that elastic member is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202569740U CN201568603U (en) | 2009-11-12 | 2009-11-12 | Hard-sealing jacketed heat-preserving ball valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202569740U CN201568603U (en) | 2009-11-12 | 2009-11-12 | Hard-sealing jacketed heat-preserving ball valve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568603U true CN201568603U (en) | 2010-09-01 |
Family
ID=42660890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202569740U Expired - Lifetime CN201568603U (en) | 2009-11-12 | 2009-11-12 | Hard-sealing jacketed heat-preserving ball valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568603U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635703A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Spherical valve seat structure with disc-shaped spring combined body |
| CN103527806A (en) * | 2013-10-09 | 2014-01-22 | 浙江力诺流体控制科技股份有限公司 | Integral type jacket heat-preservation ball valve |
| CN103711927A (en) * | 2013-06-04 | 2014-04-09 | 烟台开发区金泰美林科技有限公司 | High-pressure high-temperature ceramic adjusting ball valve |
-
2009
- 2009-11-12 CN CN2009202569740U patent/CN201568603U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635703A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Spherical valve seat structure with disc-shaped spring combined body |
| CN103711927A (en) * | 2013-06-04 | 2014-04-09 | 烟台开发区金泰美林科技有限公司 | High-pressure high-temperature ceramic adjusting ball valve |
| CN103527806A (en) * | 2013-10-09 | 2014-01-22 | 浙江力诺流体控制科技股份有限公司 | Integral type jacket heat-preservation 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: 20100901 |
|
| CX01 | Expiry of patent term |