CN202418879U - Ultrahigh-pressure valve sealing device - Google Patents
Ultrahigh-pressure valve sealing device Download PDFInfo
- Publication number
- CN202418879U CN202418879U CN2011205627143U CN201120562714U CN202418879U CN 202418879 U CN202418879 U CN 202418879U CN 2011205627143 U CN2011205627143 U CN 2011205627143U CN 201120562714 U CN201120562714 U CN 201120562714U CN 202418879 U CN202418879 U CN 202418879U
- Authority
- CN
- China
- Prior art keywords
- spring
- actuated
- valve
- ring
- sealing ring
- 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 - Lifetime
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Abstract
The utility model discloses an ultrahigh-pressure valve sealing device, which comprises a first spring-actuated sealing ring (5), a second spring-actuated sealing ring (6), a V-shaped sealing ring (7), a support ring (4) and a pressure washer (8), wherein the first spring-actuated sealing ring (5), the second spring-actuated sealing ring (6) and the V-shaped sealing ring (7) are sequentially arranged between the support ring (4) and the pressure washer (8) from bottom to top to form the whole sealing device; an inner lip of each spring-actuated sealing ring is provided with a corrosion-resistant alloy stainless steel spring; and a double-C lug boss is arranged on each of the internal and external diameters of each spring-actuated sealing ring. The kinematical sealing between a valve cap and a valve rod of a valve under the action of ultrahigh pressure is realized, the valve can be endowed with reliable sealing performance, and the switching torque of the valve can be greatly reduced.
Description
Technical field
The utility model relates to seal arrangement, is specifically related to a kind of excess high pressure valves door seal device, is used to seal the valve gap of Super high pressure valve and the annular space that valve rod forms.
Background technique
Present known valve is lip filler or U type filler with the stuffing box packing between valve gap and valve rod; These stuffing box packing are to utilize the rubber interference and utilize pressure to act on the stuffing box packing lip to excite sealing; They can only be used for the valve gap of low Middle pressure valve and the sealing between valve rod; And ageing of rubber As time goes on, the valve seal performance reduces, and it is big that switch moment becomes.
Summary of the invention
The purpose of the utility model is: a kind of excess high pressure valves door seal device is provided; Solve valve motive sealing problem between the valve gap of ultrahigh pressure effect lower valve and valve rod; The sealing device can provide very reliable sealing performance to valve, and can reduce valve switch moment greatly.
The scheme of the utility model technical solution problem is: the sealing device comprises dual spring-actuated seal ring, V-shaped seal ring, bracing ring and trim ring; Spring-actuated seal ring, No. two spring-actuated seal rings and V-shaped seal ring are installed between bracing ring and trim ring from the bottom up successively, are wholely constituted seal arrangement; Wherein, the inside lip of spring-actuated seal ring has the corrosion resisting alloy stainless steel spring, and interior external diameter is established two C boss.
During assembling; Seal arrangement is installed in the annular space that valve gap and the valve rod of valve form, and utilizes the spring tension of spring-actuated seal ring to set up initial sealing, along with the rising of valve fluid pressure; Pressure acts on the lip of spring-actuated seal ring; Spring-actuated internal diameter of the seal ring shrinks external diameter expansion, and seal arrangement and valve gap and valve rod are fitted tightly, and forms reliable dual superhigh pressure sealing.
The utlity model has following advantage:
1, the interior external diameter of spring-actuated seal ring is provided with two C boss, boss extrusion-deformation when initial the installation, and the groove of boss both sides affords redress to the distortion of boss, and the surface of contact between valve rod and seal arrangement is reduced, and has reduced the switch moment of valve.
2, the utility model seal arrangement essence is to utilize suitable spring force to add the pressure of valve internal fluid, and the lip of spring-actuated seal ring is ejected and is pressed in gently on the sealing surface of valve gap and valve rod, produces very reliable sealing effect.
3, the actuating effect of the spring of spring-actuated seal ring can overcome the wearing and tearing of the slight eccentricity and the seal lip of metal fitting surface, keeps excellent sealing performance.
4, this device is designed with spring-actuated seal ring; Utilize spring to overcome the elastic problem of body, and realize superhigh pressure sealing, therefore by the pressure of valve pocket inner fluid; The sealing device is the superhigh pressure sealing device, has avoided the problem of the high pressure sealing thorn leakage of conventional seals filler.
Description of drawings
Fig. 1 is the mounting structure schematic representation of the utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Among the figure: 1 valve gap; 2 seal arrangements; 3 valve rods; 4 bracing rings, No. 5 spring-actuated seal rings, 6 No. two spring-actuated seal rings, 7 V-shaped seal rings, 8 trim rings.
Embodiment
As shown in Figure 1; The sealing device comprises the spring-actuated seal ring of spring-actuated seal ring 5, No. two 6, V-shaped seal ring 7, bracing ring 4 and trim ring 8; Spring-actuated seal ring 5, No. two spring-actuated seal rings 6 and V-shaped seal rings 7 are installed between bracing ring 4 and trim ring 8 from the bottom up successively, are wholely constituted seal arrangement; Wherein, the inside lip of spring-actuated seal ring has the corrosion resisting alloy stainless steel spring, and interior external diameter is established two C boss.
During assembling; In the annular space that the valve gap 1 that seal arrangement 2 is installed in valve and valve rod 3 form, utilize the spring tension of spring-actuated seal ring to set up initial sealing, along with the rising of valve fluid pressure; Pressure acts on the lip of spring-actuated seal ring; Spring-actuated internal diameter of the seal ring shrinks external diameter expansion, and seal arrangement 2 and valve gap 1 and valve rod 3 are fitted tightly, and forms reliable dual superhigh pressure sealing.
Claims (1)
1. excess high pressure valves door seal device; It is characterized in that: the sealing device comprises a spring-actuated seal ring (5), No. two spring-actuated seal rings (6), V-shaped seal ring (7), bracing ring (4) and trim ring (8); A spring-actuated seal ring (5), No. two spring-actuated seal rings (6) and V-shaped seal ring (7) are installed from the bottom up successively, whole formation seal arrangement between bracing ring (4) and trim ring (8); Wherein, the inside lip of spring-actuated seal ring has the corrosion resisting alloy stainless steel spring, and interior external diameter is established two C boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205627143U CN202418879U (en) | 2011-12-29 | 2011-12-29 | Ultrahigh-pressure valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205627143U CN202418879U (en) | 2011-12-29 | 2011-12-29 | Ultrahigh-pressure valve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418879U true CN202418879U (en) | 2012-09-05 |
Family
ID=46743642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205627143U Expired - Lifetime CN202418879U (en) | 2011-12-29 | 2011-12-29 | Ultrahigh-pressure valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418879U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265993A (en) * | 2014-10-11 | 2015-01-07 | 苏州道森钻采设备股份有限公司 | Valve rod ladder pressure difference seal structure for ultrahigh pressure fracture brake valve |
| CN106641320A (en) * | 2017-02-14 | 2017-05-10 | 中国船舶重工集团公司第七二五研究所 | Valve rod seal structure of underwater ball valve |
| CN114233925A (en) * | 2021-12-29 | 2022-03-25 | 苏州道森钻采设备股份有限公司 | Ultrahigh pressure sealing mechanism for valve rod of valve |
-
2011
- 2011-12-29 CN CN2011205627143U patent/CN202418879U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265993A (en) * | 2014-10-11 | 2015-01-07 | 苏州道森钻采设备股份有限公司 | Valve rod ladder pressure difference seal structure for ultrahigh pressure fracture brake valve |
| CN106641320A (en) * | 2017-02-14 | 2017-05-10 | 中国船舶重工集团公司第七二五研究所 | Valve rod seal structure of underwater ball valve |
| CN106641320B (en) * | 2017-02-14 | 2020-07-24 | 中国船舶重工集团公司第七二五研究所 | Valve rod sealing structure of underwater ball valve |
| CN114233925A (en) * | 2021-12-29 | 2022-03-25 | 苏州道森钻采设备股份有限公司 | Ultrahigh pressure sealing mechanism for valve rod of 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |