CN103807440B - A kind of self-energized seal pad for unsymmetric structure sealing - Google Patents
A kind of self-energized seal pad for unsymmetric structure sealing Download PDFInfo
- Publication number
- CN103807440B CN103807440B CN201410091811.7A CN201410091811A CN103807440B CN 103807440 B CN103807440 B CN 103807440B CN 201410091811 A CN201410091811 A CN 201410091811A CN 103807440 B CN103807440 B CN 103807440B
- Authority
- CN
- China
- Prior art keywords
- metal gasket
- metallic matrix
- width
- gasket loop
- monomer
- 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.)
- Active
Links
Landscapes
- Gasket Seals (AREA)
Abstract
A kind of self-energized seal pad for unsymmetric structure sealing, including metallic matrix and the packing layer located at metallic matrix outer surface, metallic matrix is mutually to be overlapped by more than two metal gasket loop single phases, and composition is welded together by its inner rim or outer rim, the size feature and/or surface texture featur of the metal gasket loop monomer in composition metallic matrix are incomplete same, size feature includes the thickness and width of metal gasket loop monomer, surface texture featur includes the radial cross-section shape of the annular concentric groove located at metal gasket loop monomer, width and depth.The radial cross-section of annular concentric groove be shaped as in arc, rectangle and triangle any one, and the shape size of the radial cross-section of annular concentric groove is gradually reduced from the outer rim of metal gasket loop monomer to inner edge.The application has pressure self-sealing characteristic, and compression recovery performance is good, is more suitable for the dynamic sealing of asymmetrical large scale structure HTHP and its fluctuation operating mode.
Description
Technical field
The application is related to the Sealing Technology that the bearing device opening in New Equipment Engineering connects, more particularly to HTHP work
Under condition, held for petroleum refining and chemical industry, Coal Chemical Industry, chemical fertilizer industry and other various chemical industry, air-conditioning, air cooling, electric power facility
Pressure equipment is (for example：Boiler, pressure vessel, heat exchanger, pressure pipeline, gas bomb etc.) it is a kind of for unsymmetric structure sealing
Self-energized seal pad.
Background technology
In the existing sealing gasket for the connection of bearing device opening, annular plain cushion is the one kind being most widely used, its
Structure species also have a lot, such as：The knots such as rubber blanket, asbestos pad, metal plain cushion, iron bag pad, wound gasket, ripple odontolith ink composite pad
Structure.
In the prior art, typical structure is as shown in figure 1, wherein in being applied to the annular plain cushion Sealing Technology of W.N flange
Flange generally comprises the end that ring flange 11, the bolt hole 12 of installation bolt nut fastener, neck 13 are docked with pressure-bearing shell
The sealing surface 16 of groove 14, annular plain cushion 15 and annular plane.Bolt passes through the bolt hole 12 of upper and lower two flanges, in bolt
End tighten nut, make that two sealing surfaces of flange 16 are close to each other to compress annular gaskets 15 so that in flange medium pressure
Power P cannot flee the outside to flange from dotted arrow direction by annular plain cushion 15 and its sealing surface between flange.
The practical problem of the annular plain cushion Sealing Technology generally existing of above-mentioned traditional structure is, when the pressure of medium in flange
When P, temperature T are raised or fluctuated, pressure higher produces the pulling force F, temperature T higher shown in solid arrow at the two ends of flange
Make bolt expanded by heating extend, cause sealing system relax, due to annular plain cushion 15 without enough resiliences with continue keep and
Being brought into close contact for the sealing surface 16 of flange, so that high-temperature high-pressure medium is fled to outside flange by sealing surface 16, triggers
Explosive combustion accident.As can be seen here, the Sealing Technology of bearing device opening connection will turn into the whole key of equipment.
The basic reason for analyzing the leakage of above-mentioned flange interior media from technological layer is：After sealing system is lax, annular flat
Pad 15 is without enough resilience continuing to keep to be brought into close contact with flange sealing surface.
For a long time, people are devoted to being connected for opening always the research of sealing structure, and main target lies also in raising
The rebound degree of pad, for example：For the Chinese utility model patent of 202867836U is disclosed, " a kind of spring is combined Authorization Notice No.
Gasket seal ", it is " mainly by skeleton, the metal pedestal layer set on the outside of the skeleton surrounding（2）, and in the metal gasket
Layer（2）Surrounding outside be provided with clad（1）Composition, it is characterised in that：The skeleton of the spring composite sealing pad is by inner side
Cylindrically coiled spring（5）, outside cylindrically coiled spring（3）And the spacing ring between the interior outside cylindrically coiled spring
（4）Constitute；Inside cylindrical helical spring（5）With outside cylindrically coiled spring（3）It is separately positioned on spacing ring（4）Interior external groove
It is interior, outside cylindrically coiled spring（3）, inside cylindrical helical spring（5）With spacing ring（4）Link into an integrated entity." above-mentioned spring be combined
Although gasket seal is with excellent resilience, its complex structure, and sealing system parts rapid wear, operation fiber crops
It is tired, it is not easy to the large area popularization of in the market and promotes.In addition, also there is such as T-slot metal gasket flange in the prior art
Traditional forced seal knot such as sealing structure, sealing weldering flange sealing structure, the thread-locking ring sealing structure of thin-walled Ω ring structures
Structure, graphite wound gasket, ripple odontolith ink composite pad；And cambridge ring, Cachaly seal, Bridgman sealing, bimetallic ripple odontolith
The sealing structure such as black composite pad sealing, membrane type sealed.Above-mentioned sealing structure not enough, is answered because of reinforcing effect in particular with practice
Go deep into, it has been found that these structures there is also some unfavorable places in itself.The problem being primarily present is：
First, the sealing of unsymmetric structure cannot be adapted to；
Second, it is necessary to high-caliber welding.Sealing such as thin-walled Ω ring structures is welded；
3rd, huge structure.Such as the sealing of common large flange type, flange and end cap are very thick, and not temperature compensated regulation；
4th, be short of universality, some occasions with effect is good, some occasions with effect is poor；
5th, assembling quality is poor, and packaging efficiency is relatively low.
In sum, a kind of simple structure, the gasket seal that sealing reliability is good, the efficiency of loading and unloading is high are researched and developed, in engineering skill
Art field has extremely far-reaching and great meaning.
The content of the invention
The purpose of the application is to avoid weak point of the prior art and provide a kind of for unsymmetric structure sealing
And can improve assembling quality and the efficiency of loading and unloading, and self-tightening sealing performance is good, simple structure, the sealing gasket with universality.
The purpose of the application is achieved through the following technical solutions：
A kind of self-energized seal pad for unsymmetric structure sealing is provided, including metallic matrix and is arranged at the gold
Belong to outer surface of matrix packing layer, wherein, the metallic matrix be mutually overlapped by more than two metal gasket loop single phases and
The metallic matrix of composition is welded together by its inner rim or outer rim, the metal gasket loop monomer in the composition metallic matrix
Size feature and/or surface texture featur are incomplete same, and the size feature includes metal gasket loop monomer
Thickness and width, the surface texture featur includes that the radial direction of the annular concentric groove for being arranged at the metal gasket loop monomer is horizontal
Section configuration, width and depth.
Wherein, the radial cross-section of the annular concentric groove be shaped as in arc, rectangle and triangle any one,
And the shape size of the radial cross-section of the annular concentric groove from the outer rim of the metal gasket loop monomer to inner edge gradually
Reduce.
Wherein, the metallic matrix is to be shaped as trapezoidal metal gasket loop single phase by two radial cross-sections mutually to fold
Close and be the metallic matrix of rectangle, described two radial directions by the radial cross-section that its inner rim or outer rim weld together composition
Transverse shape is to leave gap between trapezoidal metal gasket loop monomer.
Wherein, the metallic matrix be mutually overlapped by the metal gasket loop single phase of more than three and by its inner rim or
Outer rim welds together the metallic matrix of composition, has some positioned at the surface of middle metal gasket loop monomer is circumferentially arranged
Radial communication groove, not insertion between each radial communication groove.
Wherein, the outer surface of the two metal gasket loop monomers up and down in the metallic matrix is provided with annular concentric
Groove, the width and depth of the annular concentric groove that upper surface is set and the width and depth of the annular concentric groove of lower surface setting
Degree is differed；But at least a surface texture featur is identical with depth for the width of the annular concentric groove that upper surface is set,
Or the width of annular concentric groove that sets of lower surface at least a surface texture featur is identical with depth.
Wherein, the outer surface of the two metal gasket loop monomers up and down in the metallic matrix is provided with annular concentric
Groove, the width and depth of the annular concentric groove that upper surface is set and the width and depth of the annular concentric groove of lower surface setting
Degree all same；But an at least surface texture featur is differed in the width and depth of the annular concentric groove that upper surface is set,
Or an at least surface texture featur is differed in the width and depth of the annular concentric groove of lower surface setting.
Wherein, the identical setting of width, the incomplete phase of thickness of each metal gasket loop monomer in the metallic matrix are constituted
With setting；Or to constitute the identical setting of thickness of each metal gasket loop monomer in the metallic matrix, width incomplete same
Set.
Wherein, described filler layer includes graphite linings, rubber layer, plastic layer, adhesive-layer and its any two or more mixing
Nitride layer；Or, described filler layer includes soft metal layer.
Wherein, it is flexibility to constitute the welding point between the adjacent two metal gasket loop monomer in the metallic matrix
Structure.
Wherein, the metallic matrix be mutually overlapped by the metal gasket loop single phase of more than three and by its inner rim or
Outer rim welds together the metallic matrix of composition, and high-elastic structure is set to positioned at middle metal gasket loop monomer.
The beneficial effect of the application：The sealing gasket of the application is specifically applied to when the stress of gasket seal both sides part is different
When, sealing system its mechanical behavior of gasket seal and part composition needs to meet different requirements, and the application is aiming at upper
The solution stated technical problem and propose.Compared with prior art, disclosure satisfy that can not resilience requirement, while having structure
Simply, the characteristics of assembling and disassembling simplicity, low cost, is more suitable for the dynamic sealing of unsymmetric structure HTHP and its fluctuation operating mode.
Brief description of the drawings
The application is described further using accompanying drawing, but embodiment in accompanying drawing does not constitute any limit to the application
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to the following drawings
Other accompanying drawings.
Fig. 1 is the typical structure schematic diagram of a kind of W.N flange sealing pair in existing conventional art and annular plain cushion.
Fig. 2 is that a kind of the first partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 3 is that a kind of second partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 4 is that a kind of the third partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 5 is that a kind of the 4th kind of partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 6 is that a kind of the 5th kind of partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 7 is that a kind of the 6th kind of partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 8 is that a kind of the 7th kind of partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Fig. 9 is that a kind of the 8th kind of partial structurtes of self-energized seal pad for unsymmetric structure sealing of the application are illustrated
Figure.
Include in Fig. 1：
11 --- ring flange, 12 --- bolt hole, 13 --- neck, 14 --- end groove, 15 --- annular plain cushion,
16 --- sealing surface,
Included in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9：
31st, 32 --- metal gasket loop monomer, 33 --- seal-weld, 34 --- packing layer,
41st, 42 and 43 --- metal gasket loop monomer, 44 --- seal-weld, 45 --- packing layer,
51st, 52 --- metal gasket loop monomer, 53 --- O-ring, 54 --- seal-weld, 55 --- packing layer,
61st, 62 --- metal gasket loop monomer, 63 --- C-shaped ring, 64 --- seal-weld, 65 --- packing layer,
71st, 73 --- metal gasket loop monomer, 72 --- wound gasket, 74 --- seal-weld,
81st, 82 and 83 --- metal gasket loop monomer, 84 --- seal-weld, 85 --- packing layer,
91 --- metal gasket loop monomer, 92,93 and 94 --- annular concentric grooves,
101st, 102 --- metal gasket loop monomer, 103 --- seal-welds.
Specific embodiment
The application is described in further detail with the following Examples.
A kind of self-energized seal pad for unsymmetric structure sealing of the application, including metallic matrix and it is arranged at institute
The packing layer of metallic matrix outer surface is stated, above-mentioned technical characteristic is same as the prior art.The improvement of the application is：The metal
Matrix is mutually to be overlapped by more than two metal gasket loop single phases and weld together the gold for constituting by its inner rim or outer rim
Category matrix, the size feature and/or surface texture featur of the metal gasket loop monomer in the composition metallic matrix be not complete
Exactly the same, the size feature includes the thickness and width of metal gasket loop monomer, and the surface texture featur includes setting
It is placed in radial cross-section shape, width and the depth of the annular concentric groove of the metal gasket loop monomer.Composition metallic matrix
The thin portion structure that is not all of in identical, or same unitary piece of metal gasket ring monomer of each unitary piece of metal gasket ring monomer be
Differ and set to meet requirement of the unsymmetric structure sealing for screen resilience.The strengthened sealing pad of the application is specifically applied to
When the stress of gasket seal both sides part is different, gasket seal and the sealing system of part composition its mechanical behavior need to meet
Different requirements, for example, sealing system is not two flanges of symmetrical configuration as shown in Figure 1, but opposite side uses downhand welding
When flange, inverse flange, tube bank tube sheet or blind plate lid etc., the interior compressive strain for particularly restraining tube sheet or blind plate lid it is larger, it is necessary to
The packing layer of rebound degree higher, that is, need ripple tooth height higher, the waveform groove of bigger ripple tooth radius to fill packing layer, if close
Gasket both sides are arranged to the big structure in prior art as shown in Figure 1, can increase again the thickness of metallic matrix, width so as to
Influence rebound degree, also increases cost, therefore, technology development will develop towards personalized, specialization, the direction for characterizing, with suitable
Should specifically need, the solution that the application is proposed aiming at above-mentioned technical problem.Compared with prior art, disclosure satisfy that
Can not resilience requirement, while have simple structure, assembly and disassembly easy, the characteristics of low cost, be more suitable for unsymmetric structure high temperature
The dynamic sealing of high pressure and its fluctuation operating mode.
The application is related to the Sealing Technology that the bearing device opening in New Equipment Engineering connects, and is related to for petroleum refining and change
Work, Coal Chemical Industry, chemical fertilizer industry, other various chemical industry, air-conditioning, air cooling, electric power facility bearing device (such as boiler, pressure vessel,
Heat exchanger, pressure pipeline, gas bomb) a kind of new Sealing Technology.
Specifically, any being shaped as in arc, rectangle and triangle of the radial cross-section of the annular concentric groove
Kind, and the radial cross-section of the annular concentric groove shape size from the outer rim of the metal gasket loop monomer to inner edge by
It is decrescence small.With reference to shown in Fig. 8, the annular concentric groove 92 in left side is most deep, the depth of Article 2 annular concentric groove 93 of the side that keeps left
Take second place, third, the depth of remaining each groove gradually becomes shallower as the depth of the Article 3 annular concentric groove 94 of the side that keeps left, Huo Zheqi
The depth of remaining each groove is most shallow.The effect of more preferable self-tightening sealing is played, cost is also reduced while with resilience effect high, pressed
According to the size adjustment of pressure.
Separately, the shape positioned at metal gasket loop monomer most inner side and outermost annular concentric groove is receipts arc or receives tooth
Complete waveform structure.According to the sealing principle of metal plain cushion, ring flange elastic deflection deforms and causes near ring when internal pressure is raised
The pad thrust of shape plain cushion internal diameter side has relaxed, and the pad now close to annular plain cushion external diameter side turns into the pass of sealing
Key.Accordingly, single metal gasket loop monomer or upper and lower two outer surfaces of metallic matrix its most inner side and outermost concentric ring
Groove is designed to receive arc or receives the complete waveform structure of tooth, and most inner side and outermost half waveform or half tooth form be only it is a kind of not
Complete special case, half wave structure cannot tight seal be in turning graphite, waste corner space, whole ripple then can be more abundant
Ground utilizes effective sealed width, is different from prior art.
Specifically, the metallic matrix be by two radial cross-sections be shaped as trapezoidal metal gasket loop monomer 101,
102 are superimposed with each other and by the radial cross-section that welded seam 103 welds together composition are rectangles by its inner rim or outer rim
Metallic matrix, described two radial cross-sections are shaped as leaving gap between trapezoidal metal gasket loop monomer 101,102.
Specifically, the metallic matrix is mutually to be overlapped and by its inner rim by the metal gasket loop single phase of more than three
Or outer rim welds together the metallic matrix of composition, have some positioned at the surface of middle metal gasket loop monomer is circumferentially arranged
Bar radial communication groove, not insertion between each radial communication groove.Suitable for the different stress behavior of gasket seal both sides part, to keep away
Exempt from the thorough same setting of a knife and too weaken thin metallic matrix in itself.
Specifically, the outer surface of the two metal gasket loop monomers up and down in the metallic matrix is provided with concentric ring
Shape groove, the width of the annular concentric groove that the width and depth and lower surface of the annular concentric groove that upper surface is set are set and
Depth is differed；But an at least surface texture featur phase in the width and depth of the annular concentric groove that upper surface is set
Together, or the width of annular concentric groove that sets of lower surface at least a surface texture featur is identical with depth.
Specifically, the outer surface of the two metal gasket loop monomers up and down in the metallic matrix is provided with concentric ring
Shape groove, the width of the annular concentric groove that the width and depth and lower surface of the annular concentric groove that upper surface is set are set and
Depth all same；But an at least surface texture featur not phase in the width and depth of the annular concentric groove that upper surface is set
Together, or lower surface set annular concentric groove width and depth in an at least surface texture featur differ.
Specifically, the identical setting of width of each metal gasket loop monomer in constituting the metallic matrix, thickness are incomplete
Identical setting；Or the identical setting of thickness, the incomplete phase of width of each metal gasket loop monomer in the composition metallic matrix
With setting.
With reference to shown in Fig. 2, the group weldering seal-weld at two metal gasket loop monomers 31,32 and its cylindrical periphery angle is included
33, the packing layer 34 of both sides, upper strata metal gasket loop monomer 31 is thick, and lower metal gasket ring monomer 32 is thinner, upper and lower both sides
The annular concentric groove number that outer surface is set is not waited or structure is different.If in the group weldering seal-weld at cylindrical periphery angle is changed to
The group weldering seal-weld at circumferential rim angle, then suitable for external pressure operating mode.After pressure medium is raised, medium can enter 31 Hes by gap
Pressed between 32 liang of metal gasket loop monomers and to upper and lower metallic gasket ring monomer, pressure medium is passed into gasket seal and flange
On contact surface, the seal pressure of mode of operation lower gasket is synchronously improve, pad is remained its good sealing, reached
Self-tightening sealing.
With reference to shown in Fig. 3, include three metal gasket loop monomers 41,42 and 43,41 and 42,42 and 43 each two-layers are cylindrical
The group weldering seal-weld 44 at periphery angle, the packing layer 45 of both sides, thinner, the lower metal of upper double layer of metal gasket ring monomer 41,42
Gasket ring monomer 43 is thick, and the annular concentric groove number that upper and lower two side external surface is set is not waited or structure is different.If cylindrical
The group weldering seal-weld at periphery angle is changed to the group weldering seal-weld at inner circle periphery angle, then suitable for external pressure operating mode.Pressure medium liter
Gao Hou, medium can be by gap between 41 and 42,42 and 43 liang of metal gasket loop monomers and to upper and lower metallic gasket ring monomer
Pressure, pressure medium is passed on gasket seal and flange contact facings, synchronously improves the close of mode of operation lower seal pad piece
Envelope enables pad to remain its good sealing than pressure, reaches self-tightening sealing.
With reference to shown in Fig. 7, include three metal gasket loop monomers 81,82 and 83,81 and 82,82 and 83 each two-layers are cylindrical
The group weldering seal-weld 84 at periphery angle, the packing layer 85 of both sides, upper double layer of metal gasket ring monomer 81,82 is thick, lower metal
Gasket ring monomer 83 is thinner, and the annular concentric groove number that the upper and lower side external surface of metal gasket loop monomer two is set is not waited or structure
It is different.If the group weldering seal-weld at cylindrical periphery angle is changed to the group weldering seal-weld at inner circle periphery angle, suitable for external pressure work
Condition.The width of each layer metal gasket loop monomer is that the metal gasket loop monomer 81 of the superiors is most narrow, undermost metal
Gasket ring monomer 83 is most wide, so constitute three-layer metal self sealss wave tooth composite gasket, pressure medium raise after, medium can by
Pressed between gap enters 81 and 82,82 and 83 liang of metal gasket loop monomers and to upper and lower metallic gasket ring monomer, pressure medium is passed
Pass on gasket seal and flange contact facings, synchronously improve the seal pressure of mode of operation lower gasket, gasket seal is begun
The sealing for keeping its good eventually, reaches self-tightening sealing；On the other hand, the pad face that upper and lower width is not waited is fitted from different parts,
Adapt to different sealing structures.
Specifically, described filler layer includes graphite linings, rubber layer, plastic layer, adhesive-layer and its any two or more mixed
Compound layer；Or, the described filler layer soft metal layer such as including mild steel, copper, aluminium.
Specifically, the welding point between adjacent two metal gasket loop monomer in constituting the metallic matrix is soft
Property structure.
Specifically, the metallic matrix is mutually to be overlapped and by its inner rim by the metal gasket loop single phase of more than three
Or outer rim welds together the metallic matrix of composition, high-elastic structure is set to positioned at middle metal gasket loop monomer.For example
The winding arrangement of Fig. 6, the O-ring of Fig. 4, the C-shaped ring of Fig. 5 or B shape rings etc..
Finally it should be noted that above example is only used to illustrate the technical scheme of the application, rather than the application is protected
The limitation of scope is protected, although being explained to the application with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, the technical scheme of the application can be modified or equivalent, without deviating from the reality of technical scheme
Matter and scope.
Claims (9)
1. a kind of self-energized seal pad for unsymmetric structure sealing, including metallic matrix and it is arranged at the metallic matrix
The packing layer of outer surface, it is characterised in that：The metallic matrix be mutually overlapped by more than two metal gasket loop single phases and
The metallic matrix of composition is welded together by its inner rim or outer rim, the metal gasket loop monomer in the composition metallic matrix
Size feature and/or surface texture featur are incomplete same, and the size feature includes metal gasket loop monomer
Thickness and width, the surface texture featur includes that the radial direction of the annular concentric groove for being arranged at the metal gasket loop monomer is horizontal
Section configuration, width and depth, wherein, the metallic matrix is to be shaped as trapezoidal metal gasket loop by two radial cross-sections
Monomer is superimposed with each other and is the metallic matrix of rectangle, institute by the radial cross-section that its inner rim or outer rim weld together composition
Two radial cross-sections are stated to be shaped as leaving gap between trapezoidal metal gasket loop monomer.
2. a kind of self-energized seal pad for unsymmetric structure sealing, including metallic matrix and it is arranged at the metallic matrix
The packing layer of outer surface, it is characterised in that：The metallic matrix be mutually overlapped by more than two metal gasket loop single phases and
The metallic matrix of composition is welded together by its inner rim or outer rim, the metal gasket loop monomer in the composition metallic matrix
Size feature and/or surface texture featur are incomplete same, and the size feature includes metal gasket loop monomer
Thickness and width, the surface texture featur includes that the radial direction of the annular concentric groove for being arranged at the metal gasket loop monomer is horizontal
Section configuration, width and depth, wherein, the metallic matrix be mutually overlapped by the metal gasket loop single phase of more than three and
The metallic matrix of composition is welded together by its inner rim or outer rim, positioned at the surface of middle metal gasket loop monomer circumferentially
It is provided with some radial communication grooves, not insertion between each radial communication groove.
3. it is according to claim 1 and 2 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：
The radial cross-section of the annular concentric groove be shaped as in arc, rectangle and triangle any one, and the concentric ring
The shape size of the radial cross-section of shape groove is gradually reduced from the outer rim of the metal gasket loop monomer to inner edge.
4. it is according to claim 3 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：It is located at
The outer surface of the two metal gasket loop monomers up and down in the metallic matrix is provided with annular concentric groove, what upper surface was set
The width and depth of the annular concentric groove that the width and depth of annular concentric groove are set with lower surface are differed；But upper table
At least a surface texture featur is identical with depth for the width of annular concentric groove that face is set, or lower surface set it is same
At least a surface texture featur is identical with depth for the width of heart ring-shaped groove.
5. it is according to claim 3 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：It is located at
The outer surface of the two metal gasket loop monomers up and down in the metallic matrix is provided with annular concentric groove, what upper surface was set
The width and depth all same of the annular concentric groove that the width and depth of annular concentric groove are set with lower surface；But upper surface
An at least surface texture featur is differed in the width and depth of the annular concentric groove of setting, or lower surface set it is same
An at least surface texture featur is differed in the width and depth of heart ring-shaped groove.
6. it is according to claim 3 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：Composition
The identical setting of width of each metal gasket loop monomer in the metallic matrix, the incomplete same setting of thickness；Or composition institute
State the identical setting of thickness, the incomplete same setting of width of each metal gasket loop monomer in metallic matrix.
7. it is according to claim 3 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：It is described
Packing layer includes graphite linings, rubber layer, plastic layer, adhesive-layer and its any two or more mixture layer；Or, described filler
Layer includes soft metal layer.
8. it is according to claim 3 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：Composition
The welding point between adjacent two metal gasket loop monomer in the metallic matrix is flexible structure.
9. it is according to claim 3 it is a kind of for unsymmetric structure sealing self-energized seal pad, it is characterised in that：It is described
Metallic matrix is mutually to be overlapped and welded together by its inner rim or outer rim by the metal gasket loop single phase of more than three to constitute
Metallic matrix, be set to high-elastic structure positioned at middle metal gasket loop monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091811.7A CN103807440B (en) | 2014-03-13 | 2014-03-13 | A kind of self-energized seal pad for unsymmetric structure sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091811.7A CN103807440B (en) | 2014-03-13 | 2014-03-13 | A kind of self-energized seal pad for unsymmetric structure sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807440A CN103807440A (en) | 2014-05-21 |
| CN103807440B true CN103807440B (en) | 2017-06-06 |
Family
ID=50704628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410091811.7A Active CN103807440B (en) | 2014-03-13 | 2014-03-13 | A kind of self-energized seal pad for unsymmetric structure sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807440B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725780B (en) * | 2017-11-09 | 2024-04-16 | 昆明纳太科技有限公司 | Differential pressure sealing structure and differential pressure sealing method |
| CN107830170B (en) * | 2017-12-22 | 2023-12-29 | 镇江贝斯特新材料股份有限公司 | Loudspeaker production point sealing pad special for rubber head |
| CN109807211B (en) * | 2019-02-26 | 2020-11-24 | 无锡市星达石化配件有限公司 | Stamping method for pipeline connection laminated metal gasket |
| CN111412282B (en) * | 2019-12-30 | 2022-07-26 | 南通仁隆科研仪器有限公司 | Device for effectively sealing end cover of large-sized high-pressure container |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836367U (en) * | 2010-11-05 | 2011-05-18 | 刘秀英 | Self-energizing corrugated composite gasket |
| CN202327081U (en) * | 2011-11-25 | 2012-07-11 | 玉环县东海石化设备制造厂 | Corrugated jacket gasket |
| CN202971902U (en) * | 2012-12-07 | 2013-06-05 | 杨振恃 | Composite type rubber gasket |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3002626C2 (en) * | 1980-01-25 | 1982-09-09 | Danfoss A/S, 6430 Nordborg | Sealing device for sealing two rooms with different pressures |
| JPS61119877A (en) * | 1984-11-14 | 1986-06-07 | Isuzu Motors Ltd | Heat insulating gasket for heat engine |
| CN201069024Y (en) * | 2007-06-26 | 2008-06-04 | 刘秀英 | composite gasket |
| CN102159859B (en) * | 2008-07-16 | 2014-04-09 | 米科斯珀尔公司 | Comby two-sided overlain gasket for sealing of dismountable flanged joints |
| CN201916485U (en) * | 2010-11-05 | 2011-08-03 | 刘秀英 | Composite gasket with parting beads |
| CN201875131U (en) * | 2010-11-05 | 2011-06-22 | 刘秀英 | Self-tightening metal gasket |
| CN203453468U (en) * | 2013-09-18 | 2014-02-26 | 揭阳市天诚密封件有限公司 | Horizontal and vertical dual-seal structured sealing gasket |
| CN203743426U (en) * | 2014-03-13 | 2014-07-30 | 茂名重力石化机械制造有限公司 | Self-tightening sealing gasket for asymmetric structure sealing |
-
2014
- 2014-03-13 CN CN201410091811.7A patent/CN103807440B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836367U (en) * | 2010-11-05 | 2011-05-18 | 刘秀英 | Self-energizing corrugated composite gasket |
| CN202327081U (en) * | 2011-11-25 | 2012-07-11 | 玉环县东海石化设备制造厂 | Corrugated jacket gasket |
| CN202971902U (en) * | 2012-12-07 | 2013-06-05 | 杨振恃 | Composite type rubber gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807440A (en) | 2014-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103807440B (en) | A kind of self-energized seal pad for unsymmetric structure sealing | |
| CN104089119B (en) | A kind of flange assembly for being applied to HTHP and its fluctuation operating mode | |
| CN105910474B (en) | More tubular sheet heat exchangers | |
| CN201069024Y (en) | composite gasket | |
| CN103557738A (en) | Sealing structure of tubular heat exchanger tube box | |
| CN201836367U (en) | Self-energizing corrugated composite gasket | |
| CN102168757A (en) | C-shaped cladding sealing ring of built-in spring and manufacturing method thereof | |
| CN103016867A (en) | Combined gasket | |
| CN103672943B (en) | Air preheater float tube sealed elastic sealing shroud device | |
| CN202176712U (en) | C-shaped cladding sealing ring with built-in spring | |
| CN104089120B (en) | A kind of flange | |
| CN203743426U (en) | Self-tightening sealing gasket for asymmetric structure sealing | |
| CN201916485U (en) | Composite gasket with parting beads | |
| CN204784815U (en) | PE connects steel ball valve | |
| CN201843994U (en) | Coating seal ring | |
| CN103775780A (en) | Anti-torsion corrugated compensator | |
| CN205718591U (en) | Many tubular sheet heat exchangers | |
| CN104776749B (en) | A kind of tube header of tube-type heat exchanger seals structure | |
| CN103542761B (en) | A kind of tube header of tube-type heat exchanger sealing gasket | |
| CN206093328U (en) | Novel cross flange that leakproofness is strong device | |
| CN201875131U (en) | Self-tightening metal gasket | |
| CN204025982U (en) | A kind of flange | |
| CN203550744U (en) | Sealing structure of tube box of tube type heat exchanger | |
| CN204358089U (en) | A kind of self tightening different angle flank of tooth bipyramid ring pad | |
| CN201025303Y (en) | Self-enhancing flexible sealing cushion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Applicant after: Maoming gravity Petrochemical Equipment Co Ltd Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Applicant before: The Challenge Petrochemical Machinery Corporation |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |