CN202532073U - Elastic composite seal gasket - Google Patents
Elastic composite seal gasket Download PDFInfo
- Publication number
- CN202532073U CN202532073U CN2012201551722U CN201220155172U CN202532073U CN 202532073 U CN202532073 U CN 202532073U CN 2012201551722 U CN2012201551722 U CN 2012201551722U CN 201220155172 U CN201220155172 U CN 201220155172U CN 202532073 U CN202532073 U CN 202532073U
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- China
- Prior art keywords
- elastic
- metal frame
- metal
- gasket seal
- elastic composite
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Abstract
An elastic composite seal gasket comprises a metal framework and a nonmetal seal layer, wherein the metal framework is an elastic disc-spring-shaped hardened framework; the nonmetal seal layer is pasted on the surface of the metal framework; and an elastic metal seal edge is arranged at the edge of the nonmetal seal layer. The elastic composite seal gasket employs the working principle of elastic recovery and memory of a disc spring, the elastic metal framework of the composite seal gasket is designed into a disc spring shape, and is combined with a non-metal material in a sealing manner, and such characteristics of the disc spring as excellent compressibility, best resilience, high load fatigue resistance, high stress relaxation resistance and reusability are effectively utilized. The sealing leak problems of the seal gasket in different working conditions due to failure in elastic deformability, load fatigue and stress relaxation are thoroughly solved.
Description
Technical field
The utility model relates to the static seal pad that is used for metal tubes connection, equipment and pipeline connection place, especially a kind of elastic composite gasket seal.
Background technique
The sealing configuration of metal tubes connection, equipment and pipeline connection place is made up of flange, bolt, pad three usually jointly, is called the bolt flange system of connections.Wherein the main mode of point of attachment sealing is: through tightening one group of equally distributed bolt of connecting flange; Flange screw power is delivered on the pad between flange facing; After making gasket compression resiliently deformable taking place, thereby interact through flange facing and gasket seal face, fills microdefect and gap between flange facing and pad; Increase the resistance of medium, stop or reduce the leakage of medium.Most critical be the resilience compensating sealing surface relative separation power of pad, thereby keep the pad compressive stres to reach the purpose of sealing.Metal frame that the structure of existing gasket seal is mainly flat by inside and outside coordination and non-hardened is handled and nonmetal sealing layer are pasted each other and are formed (as shown in Figure 1); It mainly be lean on the skeleton surface with one heart, the groove pressurized of the dislocation with one heart spring-back force that produces micro-deformation supports nonmetal sealing material sealing, so compressibility, rebound degree are less; The nonmetal sealing material of interior sealing the margin directly contacts impact, the friction that receives medium temperature, pressure, corrosion with medium, is easy to peel off, and can reduce sealability.In addition; In bearing different work condition environment work such as sealing system internal pressure load, high low temperature alternation, impact endurance test shock, corrosion; The load of clamping bolt is tired to have influenced the pad compressive stres with stress relaxation, particularly fatigue, creep, the stress relaxation of gasket seal long-term work generation, when the sealing resilience of pad less than sealing surface relative separation power; Cause seal leak, produce potential safety hazard.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, has the elastic composite gasket seal of compressibility, compression rebound elastic memory function preferably.
The utility model solves the technological scheme that the existing technology problem is adopted: the elastic composite gasket seal; Comprise metal frame and the nonmetal sealing layer that sticks on the metal frame surface; It is characterized in that: metal frame is the dish spring shape elastic skeleton through cure process, and the edge of nonmetal sealing layer is provided with metal elastic-sealed edge.
Metal elastic-sealed edge is the metal elastic-sealed edge of U type.
The surface of metal frame is plane or grooved surface concentric, that misplace with one heart.
Be inlaid with interior ring in the inboard of metal frame.
Be inlaid with the centering positioning ring in the outside of metal frame.
The beneficial effect of the utility model is: it utilizes the elastic return memory work principle of dish spring; Through the metallic elastic frame design with sealing gasket is dish spring shape and combined with the nonmetallic material sealing; Effectively utilized the dish spring to have excellent compressibility, fitst water resilience, extremely excellent anti-load fatigue in shape and proof stress is lax and reusable these characteristics; Metal frame and nonmetallic material are carried out compound, fill microdefect and clearance seal between flange facing and pad, because the dish spring is that other skeleton, elastomer are beyond one's reach at the memory resilience that is had in shape; Add excellent nonmetal sealing; Thoroughly solve gasket seal owing in different work condition environments, elastic deformability's inefficacy, load fatigue and stress relaxation, the seal leakage that causes.Simultaneously the metal frame plane is smooth or have a groove (elastic composite ripple tooth pad) that does not influence elastic performance; Two edges of nonmetal sealing layer increase metal elastic-sealed mouthful of band U type (or smooth); This elastic packing mouth is as elasticity first and the 3rd road linear sealing; The nonmetallic material that the upper and lower surfaces of metal frame is pasted seal as second road, and the triple seal of safety has improved the flange seal Safety performance effectively.
Description of drawings
Fig. 1 is the schematic cross-section of existing elastic composite gasket seal;
Fig. 2 is the basic model schematic cross-section of the utility model elastic composite gasket seal;
Fig. 3 has the schematic cross-section of the elastic composite gasket seal of interior ring for the utility model;
Fig. 4 is the elastic composite gasket seal schematic cross-section of the utility model band centering positioning ring;
Fig. 5 is the elastic composite gasket seal schematic cross-section of the utility model band centering positioning ring and interior ring.
Among the figure, 1-metal frame, the nonmetal sealing layer of 2-, the metal elastic-sealed edge of 3-, ring in the 4-, 5-centering positioning ring.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is described.
Fig. 1 is the schematic cross-section of existing elastic composite gasket seal.
Embodiment 1:
Fig. 2 is the basic model schematic cross-section of elastic composite gasket seal.Comprise metal frame 1 and nonmetal sealing layer 2; Metal frame 1 is the dish spring shape elastic skeleton through cure process; The promptly inside and outside circular cone dish shape metallic elastic skeleton that misplaces; The surface of metal frame 1 is pasted with nonmetal sealing layer 2, and the surface of metal frame 1 is plane or grooved surface concentric, that misplace with one heart.The edge of nonmetal sealing layer 2 is provided with metal elastic-sealed edge 3, and wherein metal elastic-sealed edge 3 can adopt U type elastic packing mouth or smooth shape elastic packing mouth as the elastic packing edge.In addition; But the nonmetal sealing material of high-low temperature resistants such as the surface composite and flexible/expanded graphite of metal frame 1, ceramic fiber, teflon, non-asbestos aramid fibre, no asbestos aramid fibre, rubber and high low-purity content also can the compounded special softer metals.
The mode of execution of elastic composite gasket seal shown in Figure 2 is: the surface that is coated in glue the nonmetal sealing straton of circular ring-type that has cut; On the tape face that maybe can stretch; Stick on again on the upper and lower sealing surface of inside and outside dislocation elastic metallic skeleton of dish spring shape of completion of processing, can accomplish elastic composite sealing basic model pad.
Embodiment 2:
Fig. 3 is the schematic cross-section of the elastic composite gasket seal of ring in having.Comprising metal frame 1 and nonmetal sealing layer 2; Metal frame 1 is the dish spring shape elastic skeleton through cure process; The promptly inside and outside circular cone dish shape metallic elastic skeleton that misplaces; The surface of metal frame 1 is pasted with nonmetal sealing layer 2, and the surface of metal frame 1 is the grooved surface of plane or concentric dislocation.The edge of nonmetal sealing layer 2 is provided with metal elastic-sealed edge 3, and wherein the elastic packing edge can adopt U type elastic packing mouth or smooth shape elastic packing mouth as the elastic packing edge, ring 4 (limited rings perhaps) in the inboard of metal frame is inlaid with.
The mode of execution of the elastic composite gasket seal of ring is in shown in Figure 3 having: the elastic skeleton inboard of inside and outside dislocation that is mounted to the interior ring 4 that processes (limited ring perhaps) the dish spring shape of completion of processing; Sealing surface partly repeats embodiment 1 process step, can accomplish the elastic composite gasket seal of ring in having.
Embodiment 3:
Fig. 4 is the elastic composite gasket seal schematic cross-section of the utility model band centering positioning ring.Comprising metal frame 1 and nonmetal sealing layer 2; Metal frame 1 is the dish spring shape elastic skeleton through cure process; The promptly inside and outside circular cone dish shape metallic elastic skeleton that misplaces; The surface of metal frame 1 is pasted with nonmetal sealing layer 2, and the surface of metal frame 1 is plane or grooved surface concentric, that misplace with one heart.The edge of nonmetal sealing layer 2 is provided with metal elastic-sealed edge 3; Wherein metal elastic-sealed edge 3 can adopt U type elastic packing mouth or smooth shape elastic packing mouth as the elastic packing edge, is inlaid with centering positioning ring 5 (limited ring perhaps) in the outside of metal frame 1.
The mode of execution of the elastic composite gasket seal of centering shown in Figure 4 band positioning ring is: metal frame 1 outside of inside and outside dislocation that is mounted to the centering positioning ring 5 that processes (perhaps outer limited ring) the dish spring shape of completion of processing; Sealing surface partly repeats embodiment 1, can accomplish the elastic composite gasket seal of band positioning ring.
Embodiment 4:
Fig. 5 is the elastic composite gasket seal schematic cross-section of the utility model band centering positioning ring and interior ring.Comprise metal frame 1 and nonmetal sealing layer 2; Metal frame 1 is the dish spring shape elastic skeleton through cure process; The promptly inside and outside circular cone dish shape metallic elastic skeleton that misplaces, the surface of metal frame 1 is pasted with nonmetal sealing layer 2, and the surface of metal frame 1 is the grooved surface of plane or concentric dislocation.The edge of nonmetal sealing layer 2 is provided with metal elastic-sealed edge 3; Wherein metal elastic-sealed edge 3 can adopt U type elastic packing mouth or smooth shape elastic packing mouth; Ring 4 (limited rings perhaps) are inlaid with centering positioning ring 5 (limited ring perhaps) in the outside of metal frame 1 in the inboard of metal frame is inlaid with.
The mode of execution of the band centering positioning ring of Fig. 5 and the elastic composite gasket seal of interior ring is: the inside and outside dislocation elastic skeleton outside that is mounted to the centering positioning ring that processes completion of processing; It is inboard to be mounted to inside and outside dislocation elastic skeleton to the interior ring 4 that processes (limited ring perhaps) again; Sealing surface partly repeats embodiment 1 process step, can accomplish the elastic composite gasket seal of band positioning ring and interior ring.
The processing mode of the utility model each several part is:
The dish spring shape elastic skeleton part of pad: select the metallic elastic material according to pad, the processing flat gasket is processed into the dish spring shape of inside and outside dislocation by special device earlier; In dish spring shape metal frame 1 fluting (or not with groove); By special device processing U type elastic packing mouth 3 (not being with the U type to process); Dish spring shape metal frame 1 is carried out cure process.
Centering positioning ring 5 parts of pad: select material according to pad, cutting processing ring-shaped flat pad is by the angle of special device processing with metal frame 1 connection place.
The utility model is applicable to the connection of multiple standards flange, industry equipment and the sealing of pipeline connection place; The same with other semimetal composite sealing pad; In the middle of bolt flange system of connections flange, put into described elastic composite gasket seal of the utility model and centering; Through tightening one group of equally distributed bolt flange impacting force of connecting flange, be delivered to dish spring shape elastic composite sealing gasket between flange facing unilateral on, up to flattening pad; There is centering positioning ring 5 (or outer limited ring) to install too, can satisfies flange and connect seal request.When need repeated removal installation position; As long as stick on nonmetal sealing layer 2 not damageds of gasket surface, even nonmetal sealing layer 2 damages, as long as change nonmetal sealing layer 2; Therefore this pad is reusable, is a kind of new type of safe, the desirable sealed product of environmental protection and saving.
Above content is the further explain that combines concrete optimal technical scheme that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (5)
1. the elastic composite gasket seal comprises metal frame and the nonmetal sealing layer that sticks on the metal frame surface, it is characterized in that: metal frame is the dish spring shape elastic skeleton through cure process, and the edge of nonmetal sealing layer is provided with metal elastic-sealed edge.
2. elastic composite gasket seal according to claim 1 is characterized in that: metal elastic-sealed edge is the metal elastic-sealed edge of U type.
3. elastic composite gasket seal according to claim 1 is characterized in that: the surface of metal frame is plane or grooved surface concentric, that misplace with one heart.
4. elastic composite gasket seal according to claim 1 is characterized in that: be inlaid with interior ring in the inboard of metal frame.
5. according to the arbitrary described elastic composite gasket seal of claim 1-4, it is characterized in that: be inlaid with the centering positioning ring in the outside of metal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201551722U CN202532073U (en) | 2012-04-13 | 2012-04-13 | Elastic composite seal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201551722U CN202532073U (en) | 2012-04-13 | 2012-04-13 | Elastic composite seal gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202532073U true CN202532073U (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201551722U Expired - Lifetime CN202532073U (en) | 2012-04-13 | 2012-04-13 | Elastic composite seal gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202532073U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089119A (en) * | 2014-08-05 | 2014-10-08 | 茂名重力石化机械制造有限公司 | Flange assembly applied to high temperature high pressure and fluctuation work condition |
| CN113433349A (en) * | 2021-06-09 | 2021-09-24 | 中北大学 | Clamping tool of atomic force microscope probe |
| CN113847489A (en) * | 2021-09-29 | 2021-12-28 | 常州三众弹性技术有限公司 | Flange sealing structure |
-
2012
- 2012-04-13 CN CN2012201551722U patent/CN202532073U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089119A (en) * | 2014-08-05 | 2014-10-08 | 茂名重力石化机械制造有限公司 | Flange assembly applied to high temperature high pressure and fluctuation work condition |
| CN113433349A (en) * | 2021-06-09 | 2021-09-24 | 中北大学 | Clamping tool of atomic force microscope probe |
| CN113847489A (en) * | 2021-09-29 | 2021-12-28 | 常州三众弹性技术有限公司 | Flange sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |