CN202327099U - Superhigh-temperature high-pressure expanded graphite composite seal washer with metal protecting ring - Google Patents
Superhigh-temperature high-pressure expanded graphite composite seal washer with metal protecting ring Download PDFInfo
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- CN202327099U CN202327099U CN2011205074200U CN201120507420U CN202327099U CN 202327099 U CN202327099 U CN 202327099U CN 2011205074200 U CN2011205074200 U CN 2011205074200U CN 201120507420 U CN201120507420 U CN 201120507420U CN 202327099 U CN202327099 U CN 202327099U
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- expanded graphite
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- pressure
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Abstract
A superhigh-temperature high-pressure expanded graphite composite seal washer with a metal protecting ring comprises more than two layers of expanded graphite washers. Metal wire mesh is clamped between every two layers of expanded graphite washers, and one metal outer ring and one metal inner ring guard ring are respectively covered on two end faces of each expanded graphite washer. The seal washer is used for connecting and sealing among various high-temperature high-pressure end ports. After connected well on the ports, the expanded-graphite washer is positioned in a closed encirclement ring with two end faces respectively covered by the metal outer ring and the metal inner ring guard ring. Once an expanded graphite seal on a connecting device fails due to high pressure and high pressure, the expanded graphite seal is still in the metal closed encirclement ring only, leakage is avoided, and accordingly the exterior of the expanded graphite washer is contacted with the position of a seal opening effectively to meet the sealing requirements.
Description
Technical field
The utility model relates to a kind of Sealing, is specifically related to a kind of High Pressure Seal Washer that is used for the chemical industry place, is mainly used in the equipment or the seal for pipe joints in the chemical industry place of HTHP.
Background technique
Sealing gasket is a kind of application seal element very widely; The effect of sealing gasket be by sealing material for the contact pressure of engaging surface and for the elastic-restoring force of fastening external force form jointly the interior media blocking effect is formed sealing, prevent that junction plane from must leak.
Sealing gasket be divided into nonmetal sealing gasket nonmetal with metallic combination sealing gasket and metallic gasket three major types, its material is common has rubber, leather, asbestos slate, cork, teflon, galvanized iron, steel, aluminium, copper and stainless steel etc.Selecting for use of sealing gasket generally is according to working pressure, operating temperature, and the form of the corrosivity of sealing medium and combination seal face is selected for use.In general, when normal temperature low pressure, select nonmetal soft sweet sealing gasket for use; During super pressure-high temperature, select metal and nonmetal combination seal pad or metallic gasket for use; In temperature, when pressure has bigger fluctuation, select for use good springiness or the self-energized seal pad; At low temperature, under Korrosionsmedium or the vacuum condition, considered has the sealing gasket of property.
Now generally when high temperature, high pressure sealing majority select Expanded Graphite Sealing Materials for use; Expanded graphite is that a kind of method of physics or chemistry of utilizing makes non-carbonaceous reactant insert graphite layers, has kept the crystalline compounds of graphite laminate structure when closing with the plain hexagonal network planar junction of charcoal again.It not only keeps the excellent physicochemical property of graphite, and because the interaction of insertion material and graphite layer demonstrates the new capability that original graphite and intercalated material do not possess.The graphite that is inserted with intercalation compound is when running into high temperature; Intercalation compound will decompose; Produce a kind ofly along the axial thrust of graphite layers C, this thrust is much larger than the interlayer combination force of graphite particle, and graphite layers is open under the effect of this thrust; Thereby graphite particle is expanded along C axle direction high power ground, form vermiform expanded graphite.Can " embedding " go into chemical substance and have expansiveness between graphite layer and the layer.Expanded graphite, its specific surface is very big, and surface energy is very high; Adsorption force is very strong, can not add any binder, directly under pressure; Relying on the mutual absorption and chimeric and combine of self, thereby be processed into the goods of different shape easily, is present a kind of maximum HTHP sealing material of using therefore; But the existing Expanded Graphite Sealing Materials that directly adopts is often made packing ring, or utilizes packing form coiling moulding, like this because expanded graphite originally is in graphite-like when conventional state; Therefore, be easy to occur loose shape, so be unfavorable for carrying, collection; And expanded graphite also might form liquid under the situation of ultrahigh pressure, is extruded by high pressure, therefore necessary this is solved.
The model utility content
The utility model technical problem to be solved is the deficiency that still can not be applied to superhigh temperature, high pressure to existing expanded graphite packing ring, proposes a kind of expanded graphite seal washer that can use superhigh-temperature and-pressure.
The technological scheme that the utility model adopts is:
A kind of superhigh-temperature and-pressure expanded graphite compound seal packing ring with the metal retaining ring; Comprise two-layer above expanded graphite packing ring; Between every two-layer expanded graphite packing ring, accompany wire gaze, and be enclosed with metal outer ring and metal inner ring retaining ring respectively in the both ends of the surface of expanded graphite packing ring.
Further embodiment is, the wire gaze that accompanies between described every two-layer expanded graphite packing ring is the latticed wire gaze by the Stainless Steel Wire braiding, and latticed wire gaze bonds together through Bond with expanded graphite pad up and down.
Further embodiment is; The metal ring on described roll coil of strip limit is that the soft metal makes; And be that forming a kind of bottom surface is metallic gasket from following outside and inner edge to upper overturning parcel graphite gasket, the upper strata is the metal of expanded graphite pad and the composite gland bush of expanded graphite pad combination.
The gasket ring of the utility model is used for the connection sealing between the equipment end interface of various HTHPs; The expanded graphite pad is after interface connects; To be in the closures enclosure that a kind of both ends of the surface are enclosed with metal outer ring and metal inner ring retaining ring respectively; Lost efficacy in case the sealing of the expanded graphite on the connection device receives superhigh-temperature and-pressure, will still only can in the metal enclosed ring of encirclement, can not leak; The outside more effective of expanded graphite pad contacted with sealing part, satisfy the requirement of sealing.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structural representation plan view.
Embodiment
Come further to set forth the utility model below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1; A kind of superhigh-temperature and-pressure expanded graphite compound seal packing ring with the metal retaining ring; Comprise two-layer above expanded graphite packing ring 2; Between every two-layer expanded graphite packing ring, accompany wire gaze 4, and be enclosed with metal outer ring 1 and metal inner ring retaining ring 3 respectively in the both ends of the surface of expanded graphite packing ring 2.
Further embodiment is, the wire gaze 4 that accompanies between described every two-layer expanded graphite packing ring is the latticed wire gazes by the Stainless Steel Wire braiding, and latticed wire gaze bonds together through Bond with expanded graphite pad up and down.
Further embodiment is; The metal ring on described roll coil of strip limit is that the soft metal makes; And be that forming a kind of bottom surface is metallic gasket from following outside and inner edge to upper overturning parcel graphite gasket, the upper strata is the metal of expanded graphite pad and the composite gland bush of expanded graphite pad combination.
The gasket ring of the utility model is used for the connection sealing between the equipment end interface of various HTHPs; The expanded graphite pad is after interface connects; To be in a kind of by in the formed metal enclosed ring of encirclement of the one side between the end interface and the metal ring on roll coil of strip limit; Lost efficacy in case the sealing of the expanded graphite on the connection device receives superhigh-temperature and-pressure, will still only can in the metal enclosed ring of encirclement, can not leak; The outside more effective of expanded graphite pad contacted with sealing part, satisfy the requirement of sealing.
Claims (3)
1. superhigh-temperature and-pressure expanded graphite compound seal packing ring with the metal retaining ring; It is characterized in that: comprise two-layer above expanded graphite packing ring (2); Between every two-layer expanded graphite packing ring, accompany wire gaze (4), and be enclosed with metal outer ring (1) and metal inner ring retaining ring (3) respectively in the both ends of the surface of expanded graphite packing ring (2).
2. the superhigh-temperature and-pressure expanded graphite compound seal packing ring of band metal retaining ring as claimed in claim 1; It is characterized in that: the wire gaze (4) that accompanies between described every two-layer expanded graphite packing ring is the latticed wire gaze by Stainless Steel Wire braiding, and latticed wire gaze bonds together through Bond with expanded graphite pad up and down.
3. the superhigh-temperature and-pressure expanded graphite compound seal packing ring of band metal retaining ring as claimed in claim 1; It is characterized in that: the metal ring on described roll coil of strip limit is that the soft metal makes; And be from following outside and inner edge to upper overturning parcel graphite gasket; Forming a kind of bottom surface is metallic gasket, and the upper strata is the metal of expanded graphite pad and the composite gland bush of expanded graphite pad combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205074200U CN202327099U (en) | 2011-12-08 | 2011-12-08 | Superhigh-temperature high-pressure expanded graphite composite seal washer with metal protecting ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205074200U CN202327099U (en) | 2011-12-08 | 2011-12-08 | Superhigh-temperature high-pressure expanded graphite composite seal washer with metal protecting ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327099U true CN202327099U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205074200U Expired - Fee Related CN202327099U (en) | 2011-12-08 | 2011-12-08 | Superhigh-temperature high-pressure expanded graphite composite seal washer with metal protecting ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327099U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606151A (en) * | 2017-11-20 | 2018-01-19 | 济南大学 | A kind of high temperature high voltage resistant metal and graphite Composition spacer |
| CN107975641A (en) * | 2016-10-21 | 2018-05-01 | 中核苏阀科技实业股份有限公司 | Inflate metal bellows enhancing soft graphite pad |
| CN114424394A (en) * | 2019-11-25 | 2022-04-29 | 株式会社Lg新能源 | Battery module, battery pack, and vehicle |
-
2011
- 2011-12-08 CN CN2011205074200U patent/CN202327099U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975641A (en) * | 2016-10-21 | 2018-05-01 | 中核苏阀科技实业股份有限公司 | Inflate metal bellows enhancing soft graphite pad |
| CN107606151A (en) * | 2017-11-20 | 2018-01-19 | 济南大学 | A kind of high temperature high voltage resistant metal and graphite Composition spacer |
| CN114424394A (en) * | 2019-11-25 | 2022-04-29 | 株式会社Lg新能源 | Battery module, battery pack, and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151208 |
|
| EXPY | Termination of patent right or utility model |