CN204852334U - Elevated -temperature seal graphite gaskets - Google Patents
Elevated -temperature seal graphite gaskets Download PDFInfo
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- CN204852334U CN204852334U CN201520519788.7U CN201520519788U CN204852334U CN 204852334 U CN204852334 U CN 204852334U CN 201520519788 U CN201520519788 U CN 201520519788U CN 204852334 U CN204852334 U CN 204852334U
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- graphite
- outer shroud
- metal outer
- metal
- elevated
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Abstract
The utility model relates to a graphite gaskets field, concretely relates to elevated -temperature seal graphite gaskets. Ring sum metal outer loop in the metal, it is equipped with the graphite annulus to inlay between metal inner ring and the metal outer loop, the thickness of graphite annulus is higher than the thickness of the interior ring sum metal outer loop of metal, the metal inner ring is arc indent structure, the metal outer loop is arc evagination structure, the graphite annulus be equipped with with the metal in the arc of ring sum metal outer loop laminating protruding. The utility model discloses have better leakproofness for traditional gasket, especially the sealed effect under high temperature, hyperbaric environment is very stable.
Description
Technical field
The utility model relates to Graphite pad field, is specifically related to a kind of elevated-temperature seal Graphite pad.
Background technique
In the industry equipments such as pipeline, valve, pump, pressurized container, heat exchanger, condenser; often seal element can be used; pad uses model to deceive the widest element in seal element; use pad not only can keep the sealing of the said equipment, also can solve the wear problem of link simultaneously.Existing pad is generally by metallic inner, metal outer shroud be nested in middle graphite annulus and form, it mainly seals by middle graphite annulus, but the sealing effect of this pad under high temperature and high pressure environment is undesirable, in the occasion high to sealing requirements, be difficult to be suitable for.
Summary of the invention
The utility model is for the problems referred to above, and have developed a kind of elevated-temperature seal Graphite pad, this pad is mainly used in the sealing in female flange face.
The utility model is achieved by the following technical solution:
A kind of elevated-temperature seal Graphite pad, include metallic inner and metal outer shroud, graphite annulus is embedded with between described metallic inner and metal outer shroud, the thickness of described graphite annulus is higher than the thickness of metallic inner and metal outer shroud, described metallic inner is arc concave shape structure, described metal outer shroud is the outer male structure of arc, and described graphite annulus is provided with the arc convex of fitting with metallic inner and metal outer shroud.
Preferably, the material selection soft metal of described metallic inner and metal outer shroud.
Preferably, described graphite annulus is that the mold pressing of single core level graphite tape continuous winding forms.
Further design proposal of the present utility model is as follows, the upper and lower surface of described metallic inner and metal outer shroud is all processed with groove on circumferential direction, the groove of described metallic inner has been embedded in graphite inner ring, the groove of described metal outer shroud has been embedded in graphite outer shroud, and the thickness of described graphite inner ring and graphite outer shroud is greater than groove depth.
Preferably, described graphite inner ring and graphite outer shroud to bond pressing and forming respectively by anti-oxidant composite layer and metallic inner and metal outer shroud.
Preferably, described graphite inner ring and graphite outer shroud are the mold pressing of single core level graphite tape continuous winding and form.
The utility model has better sealing relative to conventional spacers, and the sealing effect especially under high temperature, hyperbaric environment is very stable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is prior art structural representation.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of more excellent embodiment.
Fig. 4 is the using state figure of more excellent embodiment.
In figure, 1 graphite annulus, 2 metal outer shrouds, 3 metallic inner, 4 graphite outer shrouds, 5 graphite inner ring.
Embodiment
Accompanying drawing 2 is a kind of specific embodiment of the present utility model.This embodiment includes metallic inner 3 and metal outer shroud 2, graphite annulus 1 is embedded with between described metallic inner and metal outer shroud, the thickness of described graphite annulus is higher than the thickness of metallic inner and metal outer shroud, the feature of this embodiment is: described metallic inner is arc concave shape structure, described metal outer shroud is the outer male structure of arc, and described graphite annulus is provided with the arc convex of fitting with metallic inner and metal outer shroud.During use, metallic inner, metal outer shroud can form linear sealing with the groove in female flange face, meanwhile, keep enough pretightening forces between the groove that the rebound elasticity that graphite annulus is good also can guarantee metal inner and outer ring and female flange face.
Further, the material of described metallic inner and metal outer shroud is metallic nickel.Because nickel has good ductility, after metallic inner contacts with flanged surface with the upper and lower end face of metal outer shroud, the contact that better sealing surface comes isolated graphite annulus and air can be formed, improve the heatproof oxidation resistance of graphite annulus.
Further, described graphite annulus is that the mold pressing of single core level graphite tape continuous winding forms.
Accompanying drawing 3 is the more excellent embodiment of the technical program, in this embodiment, the upper and lower surface of described metallic inner and metal outer shroud is all processed with groove on circumferential direction, the groove of described metallic inner has been embedded in graphite inner ring 5, the groove of described metal outer shroud has been embedded in graphite outer shroud 4, and the thickness of described graphite inner ring and graphite outer shroud is greater than groove depth.It is multiple-sealed that the setting of graphite inner ring, graphite outer shroud can make pad be formed, and greatly improves sealing effect.
Further, described graphite inner ring and graphite outer shroud to bond pressing and forming respectively by anti-oxidant composite layer and metallic inner and metal outer shroud.
Further, described graphite inner ring and graphite outer shroud are the mold pressing of single core level graphite tape continuous winding and form.
Claims (7)
1. an elevated-temperature seal Graphite pad, include metallic inner (3) and metal outer shroud (2), graphite annulus (1) is embedded with between described metallic inner and metal outer shroud, the thickness of described graphite annulus is higher than the thickness of metallic inner and metal outer shroud, it is characterized in that: described metallic inner is arc concave shape structure, described metal outer shroud is the outer male structure of arc, and described graphite annulus is provided with the arc convex of fitting with metallic inner and metal outer shroud.
2. elevated-temperature seal Graphite pad according to claim 1, is characterized in that: the material selection soft metal of described metallic inner and metal outer shroud.
3. elevated-temperature seal Graphite pad according to claim 2, is characterized in that: the material of described metallic inner and metal outer shroud is metallic nickel.
4. elevated-temperature seal 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.
5. elevated-temperature seal Graphite pad according to claim 1, it is characterized in that: the upper and lower surface of described metallic inner and metal outer shroud is all processed with groove on circumferential direction, the groove of described metallic inner has been embedded in graphite inner ring (5), the groove of described metal outer shroud has been embedded in graphite outer shroud (4), and the thickness of described graphite inner ring and graphite outer shroud is greater than groove depth.
6. elevated-temperature seal Graphite pad according to claim 5, is characterized in that: described graphite inner ring and graphite outer shroud to bond pressing and forming respectively by anti-oxidant composite layer and metallic inner and metal outer shroud.
7. elevated-temperature seal Graphite pad according to claim 5, is characterized in that: described graphite inner ring and graphite outer shroud are the mold pressing of single core level graphite tape continuous winding and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519788.7U CN204852334U (en) | 2015-07-17 | 2015-07-17 | Elevated -temperature seal graphite gaskets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519788.7U CN204852334U (en) | 2015-07-17 | 2015-07-17 | Elevated -temperature seal graphite gaskets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852334U true CN204852334U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520519788.7U Active CN204852334U (en) | 2015-07-17 | 2015-07-17 | Elevated -temperature seal graphite gaskets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852334U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224551A (en) * | 2016-08-31 | 2016-12-14 | 苏州宝骅机械技术有限公司 | Gasket seal |
| CN106224550A (en) * | 2016-08-31 | 2016-12-14 | 苏州宝骅机械技术有限公司 | A kind of gasket seal |
| CN106439006A (en) * | 2016-12-13 | 2017-02-22 | 广西玉柴机器股份有限公司 | Sealing gasket |
| CN113700959A (en) * | 2021-08-27 | 2021-11-26 | 中国核动力研究设计院 | Sealing structure |
-
2015
- 2015-07-17 CN CN201520519788.7U patent/CN204852334U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224551A (en) * | 2016-08-31 | 2016-12-14 | 苏州宝骅机械技术有限公司 | Gasket seal |
| CN106224550A (en) * | 2016-08-31 | 2016-12-14 | 苏州宝骅机械技术有限公司 | A kind of gasket seal |
| CN106439006A (en) * | 2016-12-13 | 2017-02-22 | 广西玉柴机器股份有限公司 | Sealing gasket |
| CN113700959A (en) * | 2021-08-27 | 2021-11-26 | 中国核动力研究设计院 | Sealing structure |
| CN113700959B (en) * | 2021-08-27 | 2023-10-24 | 中国核动力研究设计院 | Sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |