CN1015400B - Flat laminated seal ring - Google Patents
Flat laminated seal ringInfo
- Publication number
- CN1015400B CN1015400B CN 88107750 CN88107750A CN1015400B CN 1015400 B CN1015400 B CN 1015400B CN 88107750 CN88107750 CN 88107750 CN 88107750 A CN88107750 A CN 88107750A CN 1015400 B CN1015400 B CN 1015400B
- Authority
- CN
- China
- Prior art keywords
- seal ring
- graphite material
- flat laminated
- ring
- laminated seal
- 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
Links
Landscapes
- Gasket Seals (AREA)
Abstract
A flat stacking seal ring is provided, which comprises a metallic central spacing ring or gasket. It is stratified at each side with soft black lead materials and is applied for sealing the orifice of water gauge.
Description
The present invention relates to a kind of long-lived seal ring of no asbestos high temperature resistant, high pressure that is used in the fluviograph aperture.
The seal ring that uses under High Temperature High Pressure has polytype, and for example Ya Mamotuo people's such as (Yamamoto) U. S. Patent 4,477,094 one or both sides of having disclosed a kind of metal foil central layer have the technology of many small boss to use.Usually there is sealing material to put on thin plate two surfaces.This reference has also been told about the ply of paper material that the application examples of sealing material if can form from rubber or resin.Asbestos fiber, mica powder, even graphite flake can mix with paste.Asbestos slate or expanded graphite also are well-known technology.
U. S. Patent 4,477,094 has disclosed a kind of seal ring that is formed by multiple material, but mainly is that vermiculite wraps in around the sheet metal, and this reference has been discussed the application of the unique bulking agent graphite that is equivalent to asbestos.
Outstanding scholar (Usher) people's of etc.ing U. S. Patent 4,463,959 has disclosed a kind of synthetic seal ring of the spacer ring that has two refractory materials and the ring that a kind of wire gaze weaves.Wire gaze extends into and comes out from the refractory ring.This reference has been told about the common application of Grafoil board (TM trade mark of Union Carbide Corporation) pliable and tough graphite flake and mica paper ring.When relatively that is invented, pointed out that difference between the two is less.
The U. S. Patent 4,507,521 of Gai Erni (Gcellner) has disclosed a kind of high temperature, high pressure photoconductive detector that uses pliable and tough expanded graphite seal ring in cylinder shape groove, and this carbon seal ring can comprise the metal reinforced wire.
The technology status of these patent reflections shows that the seal ring of making of pliable and tough graphite material is suitable for high temperature.
When the seal ring of prior art was used for the fluviograph aperture, the claimant had run into packing ring and has been crushed, problems such as leakage or physical property breakage.Though it is gratifying that graphite is used for high-temperature seal ring, the trend of extruding is arranged when it runs into high pressure, thereby cause leakage.The workpiece limit of these parts is about 3000 pounds/inch in the time of about 696 °F
2Gauge pressure.Because these parts are with the nonmetallic material of softer material, so must there not be the sealing of metal to metal.
The present invention is better than spiral through test and twines seal ring or mica seal ring.It is desired characteristics to some extent: be to repeat assembling, the elasticity of rigidity and no any leakage be provided, and need not reverse again.
The invention belongs to a kind of flat laminated seal ring, it has been placed on metal washer between the flexible graphite material, and an opening that coincides with gasket hole runs through seal ring.
The leak-tight seal that the purpose of this invention is to provide a kind of high temperature high voltage resistant, it is applied to level and smooth, softer particularly useful during with nonmetallic material.
The present invention above with other purpose and feature accompanying drawing below in will more fully manifest, wherein:
Fig. 1 is a front view of the present invention,
Fig. 2 is the sectional view along Fig. 1 II-II line,
Fig. 3 is the parts explosion that has utilized fluviograph of the present invention aperture.
Have level and smooth, the corrosion resistant metal washer or the central spacer ring 4 of first side and second side, its each side is stacked with flexible graphite material 6.Opening 8 passes laminated seal ring 2 so that the internal diameter of pliability graphite material 6 and packing ring 4 are expanded simultaneously, sees Fig. 2.Laminated seal ring 2 is preferably flat, although slight variations in shape can not influence its using effect.Certainly, the shape of flat laminated seal ring 2 finally depends on its application.
Being used for pliability graphite material 6 of the present invention and being pressed into graphite flake, for example is the Grafoil graphite flake of Union Carbide Corporation's TM trade mark.At first, by means of the well-known pressurization adhesive technology of heating graphite material 6 is attached on the packing ring 4.In case laminated seal ring of the present invention has been installed, the contact support pressure of uniformity will keep it sealed.Graphite material 6 has good sealing, and performance can not degenerate at work, and the elasticity that does not cause plastic deformation is provided, and does not extrude, and does not damage coupled.Graphite material 6 can be provided at 696 high temperature lower seals.
Metal washer 4 further provides necessary supporting, makes graphite material 6 up to about 3000 pounds/inch
2Do not extrude under the high pressure of gauge pressure.Packing ring 4 thick about 0.094～0.099 inch
2, the most handy stainless steel is manufactured.
The thickness of the graphite material 6 on each side of metal washer 4 is limited by elastic strain and extruding.Be applied to preferably about 0.015 inch of thickness in fluviograph aperture.If graphite material is thicker, it will under high pressure be extruded.On the contrary, if it will lose some elasticity than thin.According to its concrete application, the thickness of graphite material 6 is another important factors.
The periphery 10 of metal washer 4 can extend to beyond the graphite material 6.Its best applications in the fluviograph aperture is described by Fig. 3.The chamfering and the aperture of periphery 10 match, so that repeat assembling, the packing ring profile that is used for about 0.485 inch hole depth is variable and does not therefore need new aperture part.This packing ring can be as other packing rings, are crushed when overload or produce the physical property breakage, do not need to reverse yet again.
A key character of the present invention is the Seal Design of flat partially stacked ring, and it does not have the sealing of metal to metal.Erect image is used in the fluviograph orifice structure such, and when sealing than soft material and nonmetallic material, this feature is absolutely necessary.
The invention provides a kind of durable, the level and smooth surface of the no asbestos sealing washer that is used for the fluviograph aperture of easy care-have there, use that non-metal workpiece-it has low relatively cost, without detriment to existing equipment and design of part, its operating limit is about 3000 pounds/inch
2With about 696 °F.
The present invention is twined seal ring with the spiral that uses with anti-pad ring of Grafoil board and Grafoil sheet lamination packing ring and is compared, and the latter needs new cover plate (see figure 3), and the present invention in rigidity, repeat assembling, elastic strain and do not have to be better than the latter aspect the leakage.
The invention provides a kind of leak-tight seal in the High Temperature High Pressure occasion.With reference to Fig. 3, shown and used fluviograph of the present invention aperture.A center plate 12 that laminated seal ring 2 is installed is securely arranged, and inner member 14,16,18 cover plates as seal ring 2 are contained in the center plate 12.The cover plate 20 that has fastening piece 22 is firmly held in seal ring in the center plate 12, and the fluviograph orifice structure is well-known technology.
The external diameter of center plate 12 adjacent openings 24 is about 2.062 inch, about 0.485 inch of hole depth, and internal diameter 26 about 1 inch, flat laminated seal ring 2 has the external diameter of about 2.052 inch and the internal diameter of about 1.420 inch.The chamfering of periphery 10 both sides of packing ring 4 is about 0.016 inch, forms a frustoconical that appears outwardly.This just allows seal ring to be installed in recess in the center plate 12.Next-door neighbour's seal ring 2 is the circular stratiform micas as protective media.It has one approximately and the external diameter equal outer diameters of seal ring 2.Adjacent to stratiform mica 14 be a glass wafer 16 that is wrapped up by graphite film, about 1.304 inch of the external diameter of glass wafer 16 also have the thickness of about 0.628 inch.Glass wafer 16 evenly is loaded on the boss 28 that is positioned on the cover plate 20.Anti-protection pad 18 prevent glass wafer 16 from inboard and cover plate 20 metal to metals contact.
Cover plate remains on seal ring 2 in the center plate securely by means of fastening piece 22.The initial torque of fastening piece 22 is 25 pounds of chis, does not need to reverse again.
In fact, obvious shape of the present invention is not limited only to circle, and this mainly is to depend on the type in fluviograph aperture or specific purposes, and the present invention can also have many shapes without prejudice to aim of the present invention.
Claims (9)
1, a kind of flat laminated seal ring, comprise: have first side of band through hole and the metal washer of second side, and, it is characterized in that this metal washer has through hole at the graphite material coating of packing ring bi-side, graphite material coating and packing ring be expanded bore together.
2, flat laminated seal ring as claimed in claim 1, thick approximately 0.015 inch of the graphite material on the every side of packing ring.
3, flat laminated seal ring as claimed in claim 1 or 2, its metal washer have one to extend in the outer edge of graphite material slightly.
4, flat laminated seal ring as claimed in claim 3, the edge chamfering of its extension.
5, a kind of flat laminated seal ring, comprise: have first side of band through hole and the metal washer of second side, and at the graphite material coating of packing ring bi-side, it is characterized in that the sealing ring is used to have the fluviograph aperture of the center plate of the cover plate of band fastening piece and with holes and groove mouth, wherein this metal washer has through hole, this through hole has the bigger diameter of internal diameter than center plate indent notch, and the graphite material coating is arranged on the packing ring bi-side, and graphite material coating and packing ring be expanded bore together.
6, flat laminated seal ring as claimed in claim 5, thick approximately 0.015 inch of the graphite material on packing ring both sides.
7, as claim 5 or 6 described flat laminated seal rings, thick approximately 0.094 inch of its metal washer.
8, as each described flat laminated seal ring in the claim 5 to 7, its metal washer has an edge that extends graphite material slightly.
9, flat laminated seal ring as claimed in claim 8, it extends the edge is chamfering.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13196687A | 1987-12-11 | 1987-12-11 | |
| US131,966 | 1987-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033475A CN1033475A (en) | 1989-06-21 |
| CN1015400B true CN1015400B (en) | 1992-02-05 |
Family
ID=22451807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88107750 Expired CN1015400B (en) | 1987-12-11 | 1988-09-20 | Flat laminated seal ring |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1015400B (en) |
| AU (1) | AU616200B2 (en) |
| IN (1) | IN170931B (en) |
| ZA (1) | ZA887267B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011864A (en) * | 2010-08-30 | 2011-04-13 | 宋章根 | Rigid-flexible composite sealing ring |
| CN104121371B (en) * | 2014-06-27 | 2017-09-22 | 中国中材国际工程股份有限公司 | A kind of twin nuclei for spelling ring type graphite grazing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2072768B (en) * | 1979-12-15 | 1983-09-01 | Flexitallic Gasket Ltd | Gaskets |
| GB2088491B (en) * | 1980-11-15 | 1985-05-09 | T & N Materials Res Ltd | Making gaskets |
-
1988
- 1988-09-09 AU AU22056/88A patent/AU616200B2/en not_active Ceased
- 1988-09-19 IN IN785/CAL/88A patent/IN170931B/en unknown
- 1988-09-20 CN CN 88107750 patent/CN1015400B/en not_active Expired
- 1988-09-28 ZA ZA887267A patent/ZA887267B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033475A (en) | 1989-06-21 |
| ZA887267B (en) | 1989-05-30 |
| IN170931B (en) | 1992-06-20 |
| AU616200B2 (en) | 1991-10-24 |
| AU2205688A (en) | 1989-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |