CN206958241U - A kind of spiral wound gasket of high resilience - Google Patents
A kind of spiral wound gasket of high resilience Download PDFInfo
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- CN206958241U CN206958241U CN201720605981.1U CN201720605981U CN206958241U CN 206958241 U CN206958241 U CN 206958241U CN 201720605981 U CN201720605981 U CN 201720605981U CN 206958241 U CN206958241 U CN 206958241U
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- spiral wound
- wound gasket
- resilience
- tape
- inner ring
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Abstract
The utility model provides a kind of spiral wound gasket of high resilience, and the spiral wound gasket is from inside to outside successively comprising inner ring Metallic support straps, filling tape, plastic tape, metal positioning belt；The surface of the inner ring Metallic support straps is provided with sags and crests, resilience vesica is provided with the filling tape, the section of the plastic tape is " Ω " shape, and flexible layer is provided between the metal positioning belt and plastic tape；Strong elasticity material is provided with the resilience vesica.
Description
Technical field
Plant equipment is the utility model is related to pipeline to couple with gasket seal, more particularly to a kind of winding of high resilience
Formula pad.
Technical background
The currently known metallic packing that can be applied to conventional flange sealing surface form has：Flat metallic gasket, metal
Corrugated gasket, metal flute profile pad, metal hollow O V-shaped rings, SW with outside ring etc..But it is strong with upper metallic gasket
Standard seals, and when temperature and pressure fluctuates larger wait under mal-condition, required preload pressure sealing is relatively difficult to ensure card.Wherein metal
Spirotallic gasket is a kind of semi-metallic gasket formed by metal tape and the compound coiling of non-metallic spiral.
In existing pipe flange seal, on a large scale using spiral wound gasket, then realize and seal through bolt clipping forcee；
But the flange face and fastening bolt, pad because of pipeline cause flange in itself due to being had etchant gas and liquid to invade by the external world
The corrosion of face and bolt and pad in itself, substantially reduce service life and cause environmental pollution of the rusty stain to ground；In addition, such as
Using nonmetallic whole plane pad, because nonmetallic materials relaxation force itself is high, the deformation of creep is big, at each road sealing with when
Between passage and the factor such as vibrations, contraction change, screen resilience seem deficiency, short life and leakage can be caused；Metal winding simultaneously
Formula pad is disposable, is very easy to dissipate circle in use, and then sealing reduces, and evaporating, emitting, dripping or leaking of liquid or gas phenomenon easily occurs；
The winding form that conventional metals spiral wound gasket uses simultaneously is single V-arrangement or U-shaped, from a structural point, only three resiliences
Point, sealing effectiveness is caused to meet the needs of some operating modes.
For the above situation, a kind of spiral wound gasket of high resilience the utility model is related to.
Utility model content
The utility model provides a kind of spiral wound gasket of high resilience, and the spiral wound gasket includes successively from inside to outside
Inner ring Metallic support straps, filling tape, plastic tape, metal positioning belt；The surface of the inner ring Metallic support straps is provided with sags and crests,
Be provided with resilience vesica on the filling tape, the section of the plastic tape is " Ω " shape, the metal positioning belt and plastic tape it
Between be provided with flexible layer；
Strong elasticity material is provided with the resilience vesica.
As a kind of embodiment of the present utility model, resilience chamber is provided with the plastic tape.
As a kind of embodiment of the present utility model, the flexible layer is soft graphite layer.
As a kind of embodiment of the present utility model, the strong elasticity material is polyurethane.
As a kind of embodiment of the present utility model, the resilience chamber is hollow cavity.
As a kind of embodiment of the present utility model, the inner ring Metallic support straps, filling tape, plastic tape, metal are fixed
The thickness ratio of bit strip is (1-5)：(1-3)：2：(1-3).
As a kind of embodiment of the present utility model, the inner ring Metallic support straps, filling tape, plastic tape, metal are fixed
The thickness ratio of bit strip is 3：1：2：2.
As a kind of embodiment of the present utility model, the materials of the inner ring Metallic support straps be selected from carbon steel, 304 steel and
One kind in 316L steel.
As a kind of embodiment of the present utility model, the material of the filling tape is soft graphite or polytetrafluoroethylene (PTFE).
As a kind of embodiment of the present utility model, twill is provided with the metal positioning belt.
Beneficial effect：
1st, the spiral wound gasket of the high resilience provided by the utility model becomes with vibrations, contraction over time
The factors such as change, still have very strong resilience.
2nd, the not fugitive circle of the spiral wound gasket of the high resilience provided by the utility model, sealing is extremely strong, is not easy to send out
Raw evaporating, emitting, dripping or leaking of liquid or gas phenomenon.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1：The schematic perspective view of the high resilience spiral wound gasket
Fig. 2：The structural representation of the high resilience spiral wound gasket
Symbol description：Inner ring Metallic support straps 1, filling tape 2, plastic tape 3, metal positioning belt 4, sags and crests 5, resilience vesica
6th, flexible layer 7, strong elasticity material 8, resilience chamber 9.
Embodiment
The following detailed description of the present utility model for being preferable to carry out method of participation in the election and including embodiment can be more easily understood
Content of the present utility model.Unless otherwise defined, all technologies used herein and scientific terminology has and the utility model
The identical implication that one skilled in the art are generally understood that.When contradiction be present, the definition in this specification is defined.
As used herein term " by ... prepare " it is synonymous with "comprising".Term "comprising" used herein, " comprising ",
" having ", " containing " or its any other deformation, it is intended that cover including for non-exclusionism.For example, the combination comprising listed elements
Thing, step, method, product or device are not necessarily limited to those key elements, but can include not expressly listed other key elements or
Such a composition, step, method, product or the intrinsic key element of device.
Conjunction " Consists of " excludes any key element do not pointed out, step or component.If be used in claim, this
Phrase will make claim be closed, it is not included the material in addition to the material of those descriptions, but relative normal
Except rule impurity.When being rather than immediately following in the clause that phrase " Consists of " appears in claim main body after theme,
It is only limited to the key element described in the clause；Other key elements are not excluded outside the claim as entirety.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value limits, this, which is appreciated that, specifically discloses by any range limit or preferred value and any scope
All scopes that any pairing of lower limit or preferred value is formed, regardless of whether the scope separately discloses.For example, when open
During scope " 1 to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When number range is described herein, unless otherwise indicated, otherwise the scope is intended to include its end
Value and all integers and fraction within the range.
Singulative includes plural number and object is discussed, unless the context clearly dictates otherwise." optional " or it is " any
It is a kind of " refer to that the item that describes thereafter or event may or may not occur, and the description include situation that event occurs and
The situation that event does not occur.
Approximate term in specification and claims is used for modifying quantity, represents that the utility model is not limited to this
Particular number, include the portion of the amendment of the acceptable change without cause related basic function close to the quantity
Point.Accordingly, a numerical value is modified with " about ", " about " etc., means that the utility model is not limited to the exact numerical.In some examples
In son, approximate term likely corresponds to the precision of the instrument of measured value.In present specification and claims, scope
Restriction can be combined and/or exchanged, and these scopes include all subranges contained therebetween if not stated otherwise.
In addition, indefinite article " one kind " before the utility model key element or component and "one" to key element or the quantity of component
It is required that (i.e. occurrence number) unrestriction.Therefore "one" or " one kind " should be read as including one or at least one, and
The key element or component of singulative also include plural form, unless the obvious purport of the quantity refers to singulative.
Spiral wound gasket mainly includes SW with outside ring, graphite wound gasket piece, graphite metal spirotallic gasket, metallic graphite carbon
Spirotallic gasket, inner and outer ring spirotallic gasket, metal asbestos spirotallic gasket, metal tetrafluoro spirotallic gasket etc..
With following characteristic：
1st, applicable condition range is wide.Use condition under energy high temperature resistant, high pressure and adaptation ultralow temperature or vacuum.By changing
Become the combination of materials of pad, can solve the problems, such as chemical attack of the various media to pad.
2nd, stress compensation ability is strong.In temperature, pressure oscillation frequently on station, sealing property is stable, reliable.
3rd, sealing property is excellent.
4th, the surface finish requirements of pair flange sealing surface contacted with pad are not high.
5th, easy for installation, pad preload pressure is relatively low.
The utility model provides a kind of spiral wound gasket of high resilience, and the spiral wound gasket includes successively from inside to outside
Inner ring Metallic support straps, filling tape, plastic tape, metal positioning belt；The surface of the inner ring Metallic support straps is provided with sags and crests,
Be provided with resilience vesica on the filling tape, the section of the plastic tape is " Ω " shape, the metal positioning belt and plastic tape it
Between be provided with flexible layer；
Strong elasticity material is provided with the resilience vesica.
As a kind of embodiment of the present utility model, resilience chamber is provided with the plastic tape.
As a kind of embodiment of the present utility model, the flexible layer is soft graphite layer.
As a kind of embodiment of the present utility model, the strong elasticity material is polyurethane.
As a kind of embodiment of the present utility model, the resilience chamber is hollow cavity.
As a kind of embodiment of the present utility model, the inner ring Metallic support straps, filling tape, plastic tape, metal are fixed
The thickness ratio of bit strip is (1-5)：(1-3)：2：(1-3).
As a kind of embodiment of the present utility model, the inner ring Metallic support straps, filling tape, plastic tape, metal are fixed
The thickness ratio of bit strip is 3：1：2：2.
As a kind of embodiment of the present utility model, the materials of the inner ring Metallic support straps be selected from carbon steel, 304 steel and
One kind in 316L steel.
As a kind of embodiment of the present utility model, the material of the filling tape is soft graphite or polytetrafluoroethylene (PTFE).
As a kind of embodiment of the present utility model, twill is provided with the metal positioning belt.
Below in conjunction with the accompanying drawings 1, the spiral wound gasket of high resilience described in the utility model is described：This practicality is new
Type provides a kind of spiral wound gasket of high resilience, the spiral wound gasket from inside to outside successively comprising inner ring Metallic support straps 1,
Filling tape 2, plastic tape 3, metal positioning belt 4；The surface of the inner ring Metallic support straps is provided with sags and crests 5, the filling tape
On be provided with resilience vesica 6, the section of the plastic tape is " Ω " shape, is provided between the metal positioning belt and plastic tape soft
Property layer 7；
Strong elasticity material 8 is provided with the resilience vesica.Resilience chamber 9 is provided with the plastic tape.The flexible layer
For soft graphite layer.The strong elasticity material is polyurethane.The resilience chamber is hollow cavity.The inner ring Metallic support straps, fill out
It is (1-5) to fill band, plastic tape, the thickness ratio of metal positioning belt：(1-3)：2：(1-3).The material of the inner ring Metallic support straps
One kind in carbon steel, 304 steel and 316L steel.The material of the filling tape is soft graphite or polytetrafluoroethylene (PTFE).
The utility model is further described below by specific embodiment.
Embodiment 1：The present embodiment provides a kind of spiral wound gasket of high resilience, the spiral wound gasket from inside to outside according to
It is secondary to include inner ring Metallic support straps 1, filling tape 2, plastic tape 3, metal positioning belt 4；The surface of the inner ring Metallic support straps is set
Sags and crests 5 are equipped with, resilience vesica 6 is provided with the filling tape, the section of the plastic tape is " Ω " shape, the metal positioning
Flexible layer 7 is provided between band and plastic tape；
Strong elasticity material 8 is provided with the resilience vesica.Resilience chamber 9 is provided with the plastic tape.The flexible layer
For soft graphite layer.The strong elasticity material is polyurethane.The resilience chamber is hollow cavity.The inner ring Metallic support straps, fill out
It is 1 to fill band, plastic tape, the thickness ratio of metal positioning belt：1：2：1.The material of the inner ring Metallic support straps is selected from carbon steel.It is described
The material of filling tape is soft graphite.
Embodiment 2：The present embodiment provides a kind of spiral wound gasket of high resilience, the spiral wound gasket from inside to outside according to
It is secondary to include inner ring Metallic support straps 1, filling tape 2, plastic tape 3, metal positioning belt 4；The surface of the inner ring Metallic support straps is set
Sags and crests 5 are equipped with, resilience vesica 6 is provided with the filling tape, the section of the plastic tape is " Ω " shape, the metal positioning
Flexible layer 7 is provided between band and plastic tape；
Strong elasticity material 8 is provided with the resilience vesica.Resilience chamber 9 is provided with the plastic tape.The flexible layer
For soft graphite layer.The strong elasticity material is polyurethane.The resilience chamber is hollow cavity.The inner ring Metallic support straps, fill out
It is 5 to fill band, plastic tape, the thickness ratio of metal positioning belt：3：2：3.The material of the inner ring Metallic support straps is selected from 304 steel.Institute
The material for stating filling tape is polytetrafluoroethylene (PTFE).
Embodiment 3：The utility model provides a kind of spiral wound gasket of high resilience, and the spiral wound gasket is from inside to outside
Successively comprising inner ring Metallic support straps 1, filling tape 2, plastic tape 3, metal positioning belt 4；The surface of the inner ring Metallic support straps
Sags and crests 5 are provided with, resilience vesica 6 are provided with the filling tape, the section of the plastic tape is " Ω " shape, and the metal is determined
Flexible layer 7 is provided between bit strip and plastic tape；
Strong elasticity material 8 is provided with the resilience vesica.Resilience chamber 9 is provided with the plastic tape.The flexible layer
For soft graphite layer.The strong elasticity material is polyurethane.The resilience chamber is hollow cavity.The inner ring Metallic support straps, fill out
It is 3 to fill band, plastic tape, the thickness ratio of metal positioning belt：2：2：2.The material of the inner ring Metallic support straps is selected from 316L steel.Institute
The material for stating filling tape is polytetrafluoroethylene (PTFE).
Embodiment 4：The present embodiment provides a kind of spiral wound gasket of high resilience, the spiral wound gasket from inside to outside according to
It is secondary to include inner ring Metallic support straps 1, filling tape 2, plastic tape 3, metal positioning belt 4；The surface of the inner ring Metallic support straps is set
Sags and crests 5 are equipped with, resilience vesica 6 is provided with the filling tape, the section of the plastic tape is " Ω " shape, the metal positioning
Flexible layer 7 is provided between band and plastic tape；
Strong elasticity material 8 is provided with the resilience vesica.Resilience chamber 9 is provided with the plastic tape.The flexible layer
For soft graphite layer.The strong elasticity material is polyurethane.The resilience chamber is hollow cavity.The inner ring Metallic support straps, fill out
It is 3 to fill band, plastic tape, the thickness ratio of metal positioning belt：1：2：1.The material of the inner ring Metallic support straps is selected from carbon steel.It is described
The material of filling tape is soft graphite.
Claims (10)
1. a kind of spiral wound gasket of high resilience, it is characterised in that the spiral wound gasket includes inner ring successively from inside to outside
Metallic support straps, filling tape, plastic tape, metal positioning belt；The surface of the inner ring Metallic support straps is provided with sags and crests, described
Resilience vesica is provided with filling tape, the section of the plastic tape is " Ω " shape, is set between the metal positioning belt and plastic tape
It is equipped with flexible layer；
Strong elasticity material is provided with the resilience vesica.
2. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that be provided with resilience on the plastic tape
Chamber.
3. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that the flexible layer is soft graphite layer.
4. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that the strong elasticity material is polyurethane.
5. the spiral wound gasket of the high resilience described in claim 2, it is characterised in that the resilience chamber is hollow cavity.
6. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that the inner ring Metallic support straps, filling
Band, plastic tape, the thickness ratio of metal positioning belt are (1-5)：(1-3)：2：(1-3).
7. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that the inner ring Metallic support straps, filling
Band, plastic tape, the thickness ratio of metal positioning belt are 3：1：2：2.
8. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that the material of the inner ring Metallic support straps
One kind in carbon steel, 304 steel and 316L steel.
9. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that the material of the filling tape is flexible stone
Ink or polytetrafluoroethylene (PTFE).
10. the spiral wound gasket of the high resilience described in claim 1, it is characterised in that be provided with the metal positioning belt
Twill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720605981.1U CN206958241U (en) | 2017-05-27 | 2017-05-27 | A kind of spiral wound gasket of high resilience |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720605981.1U CN206958241U (en) | 2017-05-27 | 2017-05-27 | A kind of spiral wound gasket of high resilience |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206958241U true CN206958241U (en) | 2018-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720605981.1U Active CN206958241U (en) | 2017-05-27 | 2017-05-27 | A kind of spiral wound gasket of high resilience |
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| CN (1) | CN206958241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758131A (en) * | 2018-06-28 | 2018-11-06 | 江阴市恒润重工股份有限公司 | Natural gas transportation flange assembly |
-
2017
- 2017-05-27 CN CN201720605981.1U patent/CN206958241U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758131A (en) * | 2018-06-28 | 2018-11-06 | 江阴市恒润重工股份有限公司 | Natural gas transportation flange assembly |
| CN108758131B (en) * | 2018-06-28 | 2019-12-06 | 江阴市恒润重工股份有限公司 | Natural gas conveying flange assembly |
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