CN202056298U - Low-leakage graphite padding ring - Google Patents
Low-leakage graphite padding ring Download PDFInfo
- Publication number
- CN202056298U CN202056298U CN2011201714778U CN201120171477U CN202056298U CN 202056298 U CN202056298 U CN 202056298U CN 2011201714778 U CN2011201714778 U CN 2011201714778U CN 201120171477 U CN201120171477 U CN 201120171477U CN 202056298 U CN202056298 U CN 202056298U
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- CN
- China
- Prior art keywords
- packing ring
- ring
- graphite
- packing
- inclined surface
- 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 - Fee Related
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- Sealing Devices (AREA)
- Details Of Valves (AREA)
Abstract
The utility model discloses a low-leakage graphite padding ring which comprises a graphite ring and also comprises a first packing ring and a second packing ring arranged below the first packing ring; the graphite ring is clamped between the first packing ring and the second packing ring; the lower surface of the first packing ring is an upper inclined surface inclined downwards from the outside to the inside; the upper surface of the second packing ring is a lower inclined surface inclined downwards from the outside to the inside; the upper inclined surface and the lower inclined surface are parallel; the upper surface of the graphite ring is matched with the upper inclined surface; the lower surface of the graphite ring is matched with the lower inclined surface; as the packing rings are arranged at the upper end and the lower end of the low-leakage graphite padding ring and the packing rings can resist flushing, the defect that the common graphite packing rings can not resist flushing is overcome; as the joint part of the packing rings and the graphite ring is an inclined surface, the radial flowing of the padding can be selectively compressed and controlled; effective compensation can be implemented under the working conditions of alternatively changed temperature and pressure; and self-locking sealing function can be realized.
Description
(1) technical field
The utility model relates to a kind of carbon packing ring.
(2) background technique
Carbon packing ring is a kind of sealed product commonly used, during use it is enclosed within on the valve rod to get final product.Existing carbon packing ring twine to be gone up the Stainless Steel Cloth mold pressing by graphite tape and is formed, and the surface more with lubricator, plumbago and corrosion inhibitor handle and form, and is applicable to that industry mechanical seals such as oil, chemical industry, generating use.Existing carbon packing ring erosion resistibility a little less than, and sealability has much room for improvement.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of existing carbon packing ring, the utility model provides a kind of low leakage carbon packing ring.
The technical scheme in the invention for solving the technical problem is: a kind of low leakage carbon packing ring, comprise graphite annulus, also comprise the first packing ring and the second packing ring that is positioned at described first packing ring below, described graphite annulus is sandwiched between the described first packing ring and the second packing ring;
The lower surface of the described first packing ring is served as reasons outer from interior downward-sloping ramp, the upper surface of the described second packing ring is served as reasons outer from interior downward-sloping lower inclined plane, described ramp is parallel with described lower inclined plane, the upper surface of described graphite annulus and described ramp are adaptive, and the lower surface of described graphite annulus and described lower inclined plane are adaptive.
Further, the angle between described ramp and the horizontal plane is 40 °～50 °.
Further, described graphite annulus has two, and two graphite annuluss are superimposed.
The utility model in use, and is the same with existing carbon packing ring, only it need be enclosed within on the valve rod to get final product.
The beneficial effects of the utility model are: the upper and lower end of packing ring adopts the packing ring, and the packing ring is anti-to be washed away, and has overcome the not anti-shortcoming of washing away of common graphite packing ring; The junction point of packing ring and graphite annulus is the inclined-plane, therefore can realize compressing selectively and controlling the Radial Flow of filler, effectively compensates under temperature and pressure alternation operating mode, realizes the self-locking seal function.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, a kind of low leakage carbon packing ring comprises graphite annulus 3, also comprises the first packing ring 1 and the second packing ring 2 that is positioned at the described first packing ring 1 below, and described graphite annulus 3 is sandwiched between the described first packing ring 1 and the second packing ring 2;
The lower surface of the described first packing ring 1 is served as reasons outer from interior downward-sloping ramp, the upper surface of the described second packing ring 2 is served as reasons outer from interior downward-sloping lower inclined plane, described ramp is parallel with described lower inclined plane, the upper surface of described graphite annulus 3 and described ramp are adaptive, and the lower surface of described graphite annulus 3 and described lower inclined plane are adaptive.Angle between ramp described in the present embodiment and the horizontal plane is 40 °～50 °.Graphite annulus 3 described in the present embodiment has two, and two graphite annuluss 3 are superimposed.
The utility model in use, and is the same with existing carbon packing ring, only it need be enclosed within on the valve rod to get final product.
Upper and lower end of the present utility model adopts the packing ring, and the packing ring is anti-to be washed away, and has overcome the not anti-shortcoming of washing away of common graphite packing ring; The junction point of packing ring and graphite annulus is the inclined-plane, therefore can realize compressing selectively and controlling the Radial Flow of filler, effectively compensates under temperature and pressure alternation operating mode, realizes the self-locking seal function.
Claims (3)
1. reveal carbon packing ring for one kind low, comprise graphite annulus, it is characterized in that: also comprise the first packing ring and the second packing ring that is positioned at described first packing ring below, described graphite annulus is sandwiched between the described first packing ring and the second packing ring;
The lower surface of the described first packing ring is served as reasons outer from interior downward-sloping ramp, the upper surface of the described second packing ring is served as reasons outer from interior downward-sloping lower inclined plane, described ramp is parallel with described lower inclined plane, the upper surface of described graphite annulus and described ramp are adaptive, and the lower surface of described graphite annulus and described lower inclined plane are adaptive.
2. low leakage carbon packing ring as claimed in claim 1 is characterized in that: the angle between described ramp and the horizontal plane is 40 °～50 °.
3. low leakage carbon packing ring as claimed in claim 1 or 2 is characterized in that: described graphite annulus has two, and two graphite annuluss are superimposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201714778U CN202056298U (en) | 2011-05-23 | 2011-05-23 | Low-leakage graphite padding ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201714778U CN202056298U (en) | 2011-05-23 | 2011-05-23 | Low-leakage graphite padding ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056298U true CN202056298U (en) | 2011-11-30 |
Family
ID=45016269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201714778U Expired - Fee Related CN202056298U (en) | 2011-05-23 | 2011-05-23 | Low-leakage graphite padding ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925363A (en) * | 2013-01-10 | 2014-07-16 | 上海新莲泵阀有限公司 | Metal seal ring with elastic deformation under stress |
-
2011
- 2011-05-23 CN CN2011201714778U patent/CN202056298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925363A (en) * | 2013-01-10 | 2014-07-16 | 上海新莲泵阀有限公司 | Metal seal ring with elastic deformation under stress |
| CN103925363B (en) * | 2013-01-10 | 2017-08-25 | 上海新莲泵阀有限公司 | The metal o-ring of elastic deformation during a kind of stress |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20140523 |