CN206860872U - Weld lip seal structure - Google Patents
Weld lip seal structure Download PDFInfo
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- CN206860872U CN206860872U CN201720391979.9U CN201720391979U CN206860872U CN 206860872 U CN206860872 U CN 206860872U CN 201720391979 U CN201720391979 U CN 201720391979U CN 206860872 U CN206860872 U CN 206860872U
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- lip
- weldering
- weldering lip
- sealing surface
- pad
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Abstract
The utility model discloses one kind to weld lip seal structure, and the weldering lip seal structure includes：First weldering lip, the sealing surface of the first weldering lip is plane；Second welds lip, is opened up on the sealing surface of the second weldering lip fluted；Pad, the pad are arranged between the sealing surface of the first weldering lip and the sealing surface of the second weldering lip.The optimization design structure that the utility model is matched using groove and whole plane sealing surface, traditional convex surface sealing surface is substituted with whole plane sealing surface, two panels welds lip and the assembling of pad is simpler, compression to pad is spacing more directly effectively, gasket seal more effectively under compactness and operation operating mode final between guarantee weldering lip, reduce to greatest extent or prevent flange leakage, and then make that the structure of weldering lip seal structure is more simple, sealing effectiveness is more preferable.
Description
Technical field
Oil and the flange weldering lip seal of chemical industry are the utility model is related to, lip seal is welded more particularly, to one kind
Structure.
Background technology
It is the equipment extremely, highly endangered for medium toxic hazard degree, reduces or prevent flange connecing to greatest extent
The leakage of head, it is the problem of needing emphasis to consider in design.For example, in the design of spherical tank of oxirane is loaded with, by rule
Model requirement, spherical tank bottom crown must offer manhole, because the toxic hazard degree of oxirane endangers for height, by certain external specification
It is required that the manhole flange sealing structure need to use welding pattern to ensure to seal.Existing weldering lip seal structure, mainly there is two
Kind：1) directly mutually welded without pad between weldering lip (though or can disregard provided with flexi-ring pad but pad counter-force very little between weldering lip)；2)
Pad is provided between weldering lip, the sealing surface pattern of two panels weldering lip is male and fomale(M＆F).
For the weldering bead structure directly mutually welded without pad, in some instances it is possible to putting down due to two panels weldering lip surface
Face degree deviation is excessive and causes the fitting between weldering lip uneven, causes to weld lip deformation even during the pretension of flange bolt
Crack, so as to cause final weldering lip seal to fail.
For being convex surface and the sealing structure of groove with pad, weldering lip seal face pattern, because this kind welds lip seal structure
Final purpose be realize weldering lip between height fitting and realize weldering lip seal and gasket seal secondary seal, from this
For angle, the realizability of convex surface and groove match is poor, and the application of convex surface sealing surface make it that total is complicated and does not have
It is necessary.
More simple it is therefore desirable to research and develop a kind of structure, sealing effectiveness preferably welds lip seal structure.
Utility model content
The utility model provides that a kind of weldering lip seal structure is more simple, sealing effectiveness is more preferable
To achieve these goals, the utility model provides a kind of weldering lip seal structure, and the weldering lip seal structure includes：
First weldering lip, the sealing surface of the first weldering lip is plane；
Second welds lip, is opened up on the sealing surface of the second weldering lip fluted；
Pad, the pad are arranged between the sealing surface of the first weldering lip and the sealing surface of the second weldering lip.
Preferably, one end of the second weldering lip is welded in the first weldering lip, and the groove is opened in second weldering
The other end of lip.
Preferably, the length of the groove is 4th/1st to five/3rd of the sealing surface length of the described second weldering lip.
Preferably, the width of the groove upper surface is not less than the width of the groove lower surface.
Preferably, the pad is engaged with the groove shapes.
Preferably, the pad is corrugated serrated compound gasket.
Preferably, the depth of the groove is less than thickness of the corrugated serrated compound gasket under the effect of no external force.
Preferably, the corrugated serrated compound gasket includes：Metallic framework, the upper and lower surface of the metallic framework are provided with semicircle
Shape and/or pointed shape are raised；Graphite encapsulation layer, the graphite grazing coat the metallic framework.
The beneficial effects of the utility model are：The optimization design structure matched using groove and whole plane sealing surface, with
Whole plane sealing surface substitutes traditional convex surface sealing surface, and the assembling of two panels weldering lip and pad is simpler, and the compression to pad is spacing
More directly effectively, the gasket seal under compactness and operation operating mode final more effectively between guarantee weldering lip, to greatest extent
Reduce or prevent flange leakage, and then make that the structure of weldering lip seal structure is more simple, sealing effectiveness is more preferable.
System of the present utility model has other a characteristics and advantage, and these characteristics and advantage are from the accompanying drawing being incorporated herein
It will be apparent with subsequent specific embodiment, or by the accompanying drawing and subsequent specific embodiment being incorporated herein
Middle to be stated in detail, these the drawings and specific embodiments are provided commonly for explaining certain principles of the present utility model.
Brief description of the drawings
The utility model exemplary embodiment is described in more detail in conjunction with the accompanying drawings, it is of the present utility model above-mentioned
And other purposes, feature and advantage will be apparent, wherein, in the utility model exemplary embodiment, identical
Reference number typically represents same parts.
Fig. 1 shows the weldering lip seal Standard schematic diagram according to the utility model one embodiment.
Fig. 2 is shown according to the first of a kind of embodiment of the utility model the weldering lip schematic diagram.
Fig. 3 is shown according to the second of a kind of embodiment of the utility model the weldering lip schematic diagram.
Description of reference numerals：
1st, the first weldering lip；2nd, pad；3rd, the second weldering lip；4th, groove；5th, flange.
Embodiment
The utility model is more fully described below with reference to accompanying drawings.Although shown in accompanying drawing of the present utility model preferred
Embodiment, however, it is to be appreciated that may be realized in various forms the utility model without should be limited by embodiments set forth here
System.On the contrary, these embodiments are provided so that the utility model is more thorough and complete, and can will be of the present utility model
Scope is intactly communicated to those skilled in the art.
Included according to weldering lip seal structure of the present utility model：
First weldering lip, the sealing surface of the first weldering lip is plane；
Second welds lip, is opened up on the sealing surface of the second weldering lip fluted；
Pad, the pad are arranged between the sealing surface of the first weldering lip and the sealing surface of the second weldering lip.
Specifically, the optimization design structure matched using groove and whole plane sealing surface, is substituted with whole plane sealing surface and passed
System convex surface sealing surface, the assembling of two panels weldering lip and pad is simpler, and the compression to pad is spacing more directly effectively, more effectively
Gasket seal between guarantee weldering lip under final compactness and operation operating mode, reduce to greatest extent or prevent flange leakage,
And then make that the structure of weldering lip seal structure is more simple, sealing effectiveness is more preferable.
Preferably, one end of the second weldering lip is welded in the first weldering lip, and the groove is opened in described
The other end of second weldering lip.
Preferably, the length of the groove is 1 to five/3rd point of sealing surface length of the described second weldering lip
Four.
Preferably, the width of the groove upper surface is not less than the width of the groove lower surface.
Specifically, the compression recovery performance of pad can form compensation to the first weldering lip and the second weldering lip compactness difference,
The final compactness between guarantee weldering lip；The secondary seal of weldering lip seal and gasket seal is realized simultaneously.First welds the close of lip
Front cover is plane, and the sealing surface of the second weldering lip be groove, compared to convex-concave groove sealing surface type structure complexity and realizability compared with
The shortcomings that poor, convex surface is substituted with whole plane, the assembling of two panels weldering lip and pad is simpler, and the compression to pad is spacing more direct
Effectively, it is easier to formed and compensated by the compression recovery performance butt welding lip compactness difference of pad, between guarantee weldering lip finally
Compactness；Meanwhile more convenient compression ratio and rebound performance to pad requires, can more effectively ensure to operate operating mode
Under gasket seal, reduce to greatest extent or prevent flange leakage.
Preferably, pad is engaged with groove shapes.
Preferably, the pad is corrugated serrated compound gasket, the compression ratio of corrugated serrated compound gasket and the second weldering lip
The difference of sealing surface depth of groove matches.
Preferably, the depth of the groove is less than thickness of the corrugated serrated compound gasket under the effect of no external force
Degree, to ensure the compression of the pretension of pad and limit space.
Specifically, the second weldering lip processes groove in the sealing surface side that pad contacts, and for the positioning of pad, and groove is put down
Face need to meet the processing request of the sealing surface roughness of corresponding pad；Another weldering lip is whole plane, only to the close of contact pins
Front cover carries out corresponding sealing surface roughness processing.
Preferably, the corrugated serrated compound gasket includes：Metallic framework, the upper and lower surface of the metallic framework are set
There is semicircle and/or pointed shape raised；Graphite encapsulation layer, the graphite grazing coat the metallic framework.
Embodiment
Fig. 1 shows the weldering lip seal Standard schematic diagram according to the utility model one embodiment.Fig. 2 shows root
Lip schematic diagram is welded according to the first of a kind of embodiment of the utility model.Fig. 3 shows according to a kind of embodiment of the utility model
Two weldering lip schematic diagrames.
As Figure 1-3.The weldering lip seal structure includes：
First weldering lip 1, the sealing surface of the first weldering lip 1 is plane；
Second welds lip 3, and fluted 4 are opened up on the sealing surface of the second weldering lip 3；
Pad 2, the pad 2 be arranged on it is described first weldering lip 1 sealing surface with described second weldering lip 3 sealing surface it
Between.
Wherein, one end of the second weldering lip 3 is welded in the first weldering lip 1, and the groove 4 is opened in second weldering
The other end of lip 3.
Wherein, the length of the groove 4 is 4th/1st to five/3rd of the sealing surface length of the described second weldering lip 3.
Wherein, the width of the upper surface of groove 4 is not less than the width of the lower surface of groove 4.
Wherein, pad 2 is engaged with the shape of groove 4.
Wherein, the pad 2 is corrugated serrated compound gasket.
Wherein, the depth of the groove 4 is less than thickness of the corrugated serrated compound gasket under the effect of no external force.
Wherein, the corrugated serrated compound gasket includes：Metallic framework (not shown), the upper and lower surface of the metallic framework are set
There is semicircle and/or pointed shape raised；Graphite encapsulation layer (not shown), the graphite grazing coat the metallic framework.
In use, the compression recovery performance of pad 2 can weld the compactness difference of lip 3 to the first weldering lip 1 and second forms benefit
Repay, the final compactness between guarantee weldering lip；The secondary seal of weldering lip seal and gasket seal is realized simultaneously.First weldering lip 1
Sealing surface be plane, the sealing surface of the second weldering lip 3 be groove 4, compared to convex-concave groove sealing surface type structure complexity and can be real
The shortcomings that now property is poor, convex surface is substituted with whole plane, the assembling of two panels weldering lip and pad 2 is simpler, the compression limit to pad 2
Position is more directly effectively, it is easier to compensation is formed by the compression recovery performance butt welding lip compactness difference of pad 2, ensure weldering lip it
Between final compactness；Meanwhile more convenient compression ratio and rebound performance to pad requires, can more effectively ensure
The gasket seal under operating mode is operated, reduces to greatest extent or prevents flange 5 and reveal.
It will be understood by those skilled in the art that the purpose of the description to embodiment of the present utility model is only for exemplary above
Ground illustrates the beneficial effect of embodiment of the present utility model, is not intended to embodiment of the present utility model being limited to given
Any example.
It is described above each embodiment of the present utility model, described above is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes will be apparent from for those skilled in the art.
Claims (6)
1. one kind weldering lip seal structure, it is characterised in that the weldering lip seal structure includes：
First weldering lip, the sealing surface of the first weldering lip is plane；
Second welds lip, is opened up on the sealing surface of the second weldering lip fluted；
Pad, the pad are arranged between the sealing surface of the first weldering lip and the sealing surface of the second weldering lip；
The pad is corrugated serrated compound gasket, and the corrugated serrated compound gasket includes：
Metallic framework, the upper and lower surface of the metallic framework are provided with semicircle and/or pointed shape projection；
Graphite encapsulation layer, the graphite grazing coat the metallic framework.
2. weldering lip seal structure according to claim 1, it is characterised in that one end of the second weldering lip is welded in described
First weldering lip, the groove are opened in the other end of the second weldering lip.
3. weldering lip seal structure according to claim 1, it is characterised in that the length of the groove is the described second weldering lip
Sealing surface length 4/1sts to five/3rd.
4. weldering lip seal structure according to claim 1, it is characterised in that the width of the groove upper surface is not less than institute
State the width of groove lower surface.
5. weldering lip seal structure according to claim 1, it is characterised in that the pad matches with the groove shapes
Close.
6. weldering lip seal structure according to claim 1, it is characterised in that the depth of the groove is answered less than the ripple tooth
Close thickness of the pad under the effect of no external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391979.9U CN206860872U (en) | 2017-04-14 | 2017-04-14 | Weld lip seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391979.9U CN206860872U (en) | 2017-04-14 | 2017-04-14 | Weld lip seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860872U true CN206860872U (en) | 2018-01-09 |
Family
ID=60817034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720391979.9U Active CN206860872U (en) | 2017-04-14 | 2017-04-14 | Weld lip seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860872U (en) |
-
2017
- 2017-04-14 CN CN201720391979.9U patent/CN206860872U/en active Active
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