CN204828655U - Multistage sealed graphite gaskets - Google Patents
Multistage sealed graphite gaskets Download PDFInfo
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- CN204828655U CN204828655U CN201520519968.5U CN201520519968U CN204828655U CN 204828655 U CN204828655 U CN 204828655U CN 201520519968 U CN201520519968 U CN 201520519968U CN 204828655 U CN204828655 U CN 204828655U
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- graphite
- outer shroud
- ring body
- metal
- metal ring
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Abstract
The utility model relates to a graphite gaskets field, concretely relates to multistage sealed graphite gaskets. Including the becket body, the upper and lower surface of becket body all processes on the circumferential direction has the slot, the embedding has the graphite annulus in the slot, the thickness of graphite annulus is greater than the gash depth. The utility model discloses a multistage sealed scheme has better structural strength and sealed effect for prior art.
Description
Technical field
The utility model relates to Graphite pad field, is specifically related to a kind of multi-stage sealed Graphite pad.
Background technique
Metallic graphite carbon Composition spacer has good high-and low-temperature resistance, corrosion-resistant, radiation resistance, less pretightening force can be used just to realize effective sealing, be widely used in the flange seal positions such as various pipeline, valve, pump, pressurized container during installation.But the structural type of metallic graphite carbon Composition spacer is generally the graphite annulus of nested protrusions between the simple laminating of graphite paper and sheet metal or inside and outside metal ring; The former sealing effect is poor, can at faying surface generation boundary leakage to a certain degree; The ability of the anti-high pressure of the latter, alternate load, even can cause inner and outer rings dislocation to a certain degree.
Summary of the invention
The utility model, in order to improve the sealing effect of pad, have developed a kind of multi-stage sealed Graphite pad, and this pad is particularly suitable for sealing in groove, and the female flange face as pipeline, machinery seals.
The utility model is achieved by the following technical solution:
A kind of multi-stage sealed Graphite pad, include metal ring body, the upper and lower surface of described metal ring body is all processed with groove on circumferential direction, and described groove has been embedded in graphite annulus, and the thickness of described graphite annulus is greater than groove depth.
Preferably, the interior edge of described metal ring body or outer are outer male structure.
Preferably, described graphite annulus is that the mold pressing of single core level graphite tape continuous winding forms, and described graphite annulus and groove to be bondd pressing and forming by anti-oxidant composite layer.
As more excellent scheme, the inner side and outer side of described metal ring body is respectively equipped with metallic inner and metal outer shroud, graphite inner ring is nested with between described metallic inner and metal ring body, be nested with graphite outer shroud between described metal outer shroud and metal ring body, the outer of described metallic inner or metal outer shroud is outer male structure.
Preferably, the upper and lower surface of described metallic inner and metal outer shroud is not all higher than the upper and lower surface of metal ring body; The upper and lower surface of described graphite inner ring is not higher than the upper and lower surface of metallic inner, and the upper and lower surface of described graphite outer shroud is not higher than the upper and lower surface of metal outer shroud.
Compared with prior art, multi-stage sealed technological scheme advantage of the present utility model is given prominence to, and have better sealing effect, and it has good structural strength, under the operating mode of high pressure and alternate load, have stable performance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the more excellent embodiment of the utility model.
Fig. 3 is the working state figure of the more excellent embodiment of the utility model.
In figure, 1 metal ring body, 2 graphite annuluss, 3 metallic inner, 4 metal outer shrouds, 5 graphite inner ring, 6 graphite outer shrouds.
Embodiment
Accompanying drawing 1 is a kind of specific embodiment of the present utility model.This embodiment includes metal ring body 1, and the upper and lower surface of described metal ring body is all processed with groove on circumferential direction, and described groove has been embedded in graphite annulus 2, and the thickness of described graphite annulus is greater than groove depth.This gasket construction has more stable matrix relative to conventional graphite pad (being made up of inner ring, middle graphite annulus, outer shroud), and structural strength is higher, and sealing effect is better, has stable performance under the operating mode of alternate load.The sealing of this graphite annulus forms primary seal.
Further, the interior edge of described metal ring body or outer are outer male structure.Groove on this evagination respective outer side edges female flange face realizes linear sealing, and sealing forms secondary seal.
Further, the interior edge of described metal ring body or outer are the semi-circle structure of evagination, are proven, and the outer male structure of semi-circle has best sealing effect and lower manufacturing cost.
Further, described graphite annulus and groove to be bondd pressing and forming by anti-oxidant composite layer.
Further, described graphite annulus is that the mold pressing of single core level graphite tape continuous winding forms.
Further, the upper and lower surface of described metal ring body is processed with the 2 above concentric grooves in road on circumferential direction.The throttling of structure to the medium that leaks of multiple tracks graphite annulus enhances sealing effect more, significantly can increase the ability that pad bears alternate load simultaneously, can realize lasting effective sealing under high pressure operating mode.
Accompanying drawing 2 is more excellent embodiment of the present utility model.In this embodiment, the inner side and outer side of described metal ring body is respectively equipped with metallic inner 3 and metal outer shroud 4, graphite inner ring 5 is nested with between described metallic inner and metal ring body, be nested with graphite outer shroud 6 between described metal outer shroud and metal ring body, the outer of described metallic inner or metal outer shroud is outer male structure.The secondary seal that this structure makes the groove on metallic inner, metal outer shroud and female flange face be formed possesses certain pretightening force, significantly improves sealing effect.
Further, the outer of described metallic inner and metal outer shroud is the semi-circle structure of evagination, and the upper and lower surface of described metallic inner and metal outer shroud is not all higher than the upper and lower surface of metal ring body.
Further, the upper and lower surface of described graphite inner ring is not higher than the upper and lower surface of metallic inner, and the upper and lower surface of described graphite outer shroud is not higher than the upper and lower surface of metal outer shroud.
Claims (6)
1. a multi-stage sealed Graphite pad, it is characterized in that: include metal ring body (1), described metal ring body upper, lower surface is all processed with groove on circumferential direction, described groove has been embedded in graphite annulus (2), the thickness of described graphite annulus is greater than groove depth, the inner side and outer side of described metal ring body is respectively equipped with metallic inner (3) and metal outer shroud (4), graphite inner ring (5) is nested with between described metallic inner and metal ring body, graphite outer shroud (6) is nested with between described metal outer shroud and metal ring body, the outer of described metallic inner or metal outer shroud is outer male structure.
2. multi-stage sealed Graphite pad according to claim 1, it is characterized in that: the outer of described metallic inner and metal outer shroud is the semi-circle structure of evagination, the upper and lower surface of described metallic inner and metal outer shroud is not all higher than the upper and lower surface of metal ring body.
3. multi-stage sealed Graphite pad according to claim 1, is characterized in that: the upper and lower surface of described graphite inner ring is not higher than the upper and lower surface of metallic inner, and the upper and lower surface of described graphite outer shroud is not higher than the upper and lower surface of metal outer shroud.
4. multi-stage sealed Graphite pad according to claim 1, is characterized in that: described graphite annulus and groove to be bondd pressing and forming by anti-oxidant composite layer.
5. multi-stage sealed Graphite pad according to claim 1, is characterized in that: described graphite annulus is that the mold pressing of single core level graphite tape continuous winding forms.
6. multi-stage sealed Graphite pad according to claim 1, is characterized in that: the upper and lower surface of described metal ring body is processed with the 2 above concentric grooves in road on circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519968.5U CN204828655U (en) | 2015-07-17 | 2015-07-17 | Multistage sealed graphite gaskets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519968.5U CN204828655U (en) | 2015-07-17 | 2015-07-17 | Multistage sealed graphite gaskets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828655U true CN204828655U (en) | 2015-12-02 |
Family
ID=54686258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520519968.5U Active CN204828655U (en) | 2015-07-17 | 2015-07-17 | Multistage sealed graphite gaskets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156676A (en) * | 2015-07-17 | 2015-12-16 | 滨州双峰石墨密封材料有限公司 | Multi-stage sealing graphite gasket |
| CN108240474A (en) * | 2018-02-27 | 2018-07-03 | 苏州宝骅密封科技股份有限公司 | A kind of high-temperature and high-presure resistent insulated enclosure gasket |
-
2015
- 2015-07-17 CN CN201520519968.5U patent/CN204828655U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156676A (en) * | 2015-07-17 | 2015-12-16 | 滨州双峰石墨密封材料有限公司 | Multi-stage sealing graphite gasket |
| CN105156676B (en) * | 2015-07-17 | 2017-05-10 | 滨州双峰石墨密封材料有限公司 | Multi-stage sealing graphite gasket |
| CN108240474A (en) * | 2018-02-27 | 2018-07-03 | 苏州宝骅密封科技股份有限公司 | A kind of high-temperature and high-presure resistent insulated enclosure gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |