CN202082393U - High-airtightness seal ring - Google Patents
High-airtightness seal ring Download PDFInfo
- Publication number
- CN202082393U CN202082393U CN2011201112326U CN201120111232U CN202082393U CN 202082393 U CN202082393 U CN 202082393U CN 2011201112326 U CN2011201112326 U CN 2011201112326U CN 201120111232 U CN201120111232 U CN 201120111232U CN 202082393 U CN202082393 U CN 202082393U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- graphite
- airtightness
- stuffing box
- sealing
- 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 relates to a seal ring, particularly to a high-airtightness seal ring, which belongs to the field of high-temperature high-pressure valve fittings used in petroleum, chemical industry, power station, and the like, and has the benefits the seal ring adopts a structure of stainless steel coated graphite, the graphite in the high-airtightness seal ring is deformed, and the periphery of the seal ring is closely attached to a stuffing box and the valve body, so as to achieve the better sealing function, overcome the phenomena that the conventional seal ring is easy to break, has unreliable sealing property, and is easy to leak and the like, and at the same time, the dual-sealing of the metal and the graphite enables the seal ring to be medium-washing resistant and prolongs the service life.
Description
Technical field
The utility model relates to seal ring, relates in particular to a kind of high leak tightness seal ring, and it belongs to high temperature, the fitting of high-pressure valve field that use in oil, chemical industry, power station etc.
Background technique
The seal ring of traditional self-pressure-sealed valve generally adopts stainless steel or soft iron structure, the sealing at valve packing case position is to realize sealing by the adjusting seal ring of pressure medium and bolt, under the pressure of medium, graphite in the high leak tightness seal ring produces distortion, thereby make fitting tightly with Stuffing box and valve body of seal ring all around, play the effect of sealing, stainless steel or soft iron can only produce the distortion of trace, and directly contact with Stuffing box with valve body, make stainless steel or the breakage of soft iron seal ring easily, cause sealability unreliable, seal ring damages easily, valve leaks outside easily, and maintenance is inconvenient.
The model utility content
In order to solve the problem that above-mentioned prior art exists, the utility model provides the high leak tightness seal ring, and it adopts the mechanism of stainless steel parcel graphite, plays the effect of sealing.
The technological scheme that its technical problem that solves the utility model adopts is: the high leak tightness seal ring, adopt the structure of stainless steel parcel graphite, under the pressure of medium, the graphite in the high leak tightness seal ring produces distortion, thereby makes fitting tightly with Stuffing box and valve body of seal ring all around.
The beneficial effects of the utility model are: seal ring adopts the structure of stainless steel parcel graphite, graphite in the high leak tightness seal ring produces distortion, thereby make fitting tightly with Stuffing box and valve body of seal ring all around, play the effect of better sealing, it is damaged easily to have changed the conventional seals circle, and it is unreliable to seal, phenomenons such as easy leakage, simultaneously, metal and graphite double seal, and anti-medium washes away, improves working life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the general illustration of valve;
Fig. 2 is a high leak tightness ring structure schematic representation;
Fig. 3 conventional seals coil structures schematic representation.
Among the figure: 1, valve body, 2, Stuffing box, 3, seal ring, 4, pendant collet, 5, bolt, 6, loam cake, 7, support bracket bolt, 8, pad, 9, nut, 10, stainless steel, 11, graphite.
Embodiment
For understanding this coiling electric motor rotor controller in depth, be described as follows in conjunction with Fig. 1,2,3:
Embodiment 1
Valve body 1 and loam cake 6 are fixing by support bracket bolt 7; Valve body 1 is connected with Stuffing box 2, Stuffing box 2 and loam cake 6 are fixing by bolt 5 and nut 9, be provided with pad 8 between bolt 5 and the nut 9, be provided with pendant collet 4 and seal ring 3 between Stuffing box 2 and the valve body 1, seal ring 3 adopts the structure of stainless steel 10 parcel graphite 11, and Stuffing box 2 is under the effect of medium and bolt 5 pretightening forces, seal ring 3 moves up, produce distortion, seal ring 3 distortion backs fully and valve body 1 and Stuffing box 2 fit tightly, play the effect of sealing.
The utility model is not limited to the foregoing description, in actual applications, can select the structure of the different valves in the foregoing description according to requirement to the valve different model, or the different valve mechanisms except that the foregoing description, but all do not limit scope of the present utility model in any form
Claims (1)
1. high leak tightness seal ring is characterized in that: it adopts the structure of stainless steel parcel graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201112326U CN202082393U (en) | 2011-04-15 | 2011-04-15 | High-airtightness seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201112326U CN202082393U (en) | 2011-04-15 | 2011-04-15 | High-airtightness seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082393U true CN202082393U (en) | 2011-12-21 |
Family
ID=45343022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201112326U Expired - Lifetime CN202082393U (en) | 2011-04-15 | 2011-04-15 | High-airtightness seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082393U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498935A (en) * | 2013-09-16 | 2014-01-08 | 宁波天生密封件有限公司 | Wedged self-tightening sealing piece of manhole door of pressure stabilizer |
| CN103591288A (en) * | 2012-08-15 | 2014-02-19 | 中核苏阀科技实业股份有限公司 | Flexible graphite sealing ring |
| CN103670354A (en) * | 2014-01-06 | 2014-03-26 | 江苏万兴石油装备有限公司 | Combined injection-production compensation device |
| CN110939737A (en) * | 2019-12-05 | 2020-03-31 | 中国航发四川燃气涡轮研究院 | Expanded graphite sealing device with anti-shearing function |
| CN113483099A (en) * | 2021-07-16 | 2021-10-08 | 上海核工程研究设计院有限公司 | Metal-coated flexible graphite gasket |
-
2011
- 2011-04-15 CN CN2011201112326U patent/CN202082393U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591288A (en) * | 2012-08-15 | 2014-02-19 | 中核苏阀科技实业股份有限公司 | Flexible graphite sealing ring |
| CN103498935A (en) * | 2013-09-16 | 2014-01-08 | 宁波天生密封件有限公司 | Wedged self-tightening sealing piece of manhole door of pressure stabilizer |
| CN103670354A (en) * | 2014-01-06 | 2014-03-26 | 江苏万兴石油装备有限公司 | Combined injection-production compensation device |
| CN110939737A (en) * | 2019-12-05 | 2020-03-31 | 中国航发四川燃气涡轮研究院 | Expanded graphite sealing device with anti-shearing function |
| CN113483099A (en) * | 2021-07-16 | 2021-10-08 | 上海核工程研究设计院有限公司 | Metal-coated flexible graphite gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DALIAN DV VALVE CO., LTD. Free format text: FORMER NAME: DALIAN DAGAO VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Ganjingzi District of Dalian City, Liaoning province 116037 Yaojia Road No. 272 Patentee after: Dalian DV Valve Co., Ltd. Address before: Ganjingzi District of Dalian City, Liaoning province 116037 Yaojia Road No. 272 Patentee before: Dalian DV Valve Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |