CN206513822U - Novel environment friendly spiral wound gaskets - Google Patents
Novel environment friendly spiral wound gaskets Download PDFInfo
- Publication number
- CN206513822U CN206513822U CN201720004608.0U CN201720004608U CN206513822U CN 206513822 U CN206513822 U CN 206513822U CN 201720004608 U CN201720004608 U CN 201720004608U CN 206513822 U CN206513822 U CN 206513822U
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- CN
- China
- Prior art keywords
- sealing ring
- outer shroud
- ring
- sealing
- environment friendly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of novel environment friendly spiral wound gaskets, including inner ring, outer shroud and the winding band being arranged between, the outer rim of outer shroud is coated with sealing ring, sealing ring includes the base portion being close to the outer wall of outer shroud and is extended by base portion inward at both ends ring and be close to the edge sealing of outer shroud end face, the outside ring convex in inner side of edge sealing are provided with the first sealing ring, the end face of outer shroud offers the first seal groove housed for the first sealing ring, the outer rim of outer shroud is wrapped by by sealing ring, after pad is clamped by two flange faces, two edge sealing on sealing ring can fit with two flange faces respectively, the extraneous connection with inside pad of cut-off, protect pad in itself not by extraneous corrosiveness while sealing is played；Secondly by the inner side of edge sealing the first sealing ring of projection be connected in the first seal groove on outer shroud end face, be avoided that the play of sealing ring diametrically first, next increases cladding area of the sealing ring to outer shroud, improve the corrosion resistance to pad.
Description
Technical field
The utility model is related to a kind of gasket seal, more particularly to a kind of novel environment friendly spiral wound gaskets.
Background technology
Novel environment friendly spiral wound gaskets are widely used in numerous areas such as petrochemical industries, and use effect
Fruit is very good.Novel environment friendly spiral wound gaskets be it is overlapped by " V " shape or " W " shape metal tape and non-metallic, continuously
It is entwined, is fixed metal tape with spot welding mode in beginning, end.
Novel environment friendly spiral wound gaskets have the type of A, B, C, D tetra-, i.e. basic model, interior reinforced, external reinforced
And interior external reinforced, wherein interior external reinforced is usually used in face-flange and convex flange installation process, it is interior
The structure of external reinforced such as notification number for CN201250971Y utility model patent in have disclosure, including pad outer shroud, pad
Piece inner ring and fixed metal tape between pad is inside and outside and non-metallic composition.Metal tape and non-metallic are mutual
Wind the sealing position as pad, be brought into close contact when mounted with flange face, and then play sealing function, but such a pad by
In itself having height, two flanges can leave gap between two flange faces after completing docking so that pad can be by the external world
Corrosion, and reduce and use service life.
Utility model content
The purpose of this utility model is to provide a kind of novel environment friendly spiral wound gaskets with corrosion resistance.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of novel environment friendly spiral wound gaskets, including inner ring, outer shroud and the winding band that is arranged between, institute
The outer rim for stating outer shroud is coated with sealing ring, the sealing ring include the base portion being close to the outer wall of outer shroud and from base portion two ends to
Inner ring extends and is close to the edge sealing of outer shroud end face, and the outside ring convex in inner side of the edge sealing are provided with the first sealing ring, the outer shroud
End face offers the first seal groove housed for the first sealing ring.
By using above-mentioned technical proposal, the outer rim of outer shroud is wrapped by by sealing ring, when pad is clamped by two flange faces
Afterwards, two edge sealing on sealing ring can fit with two flange faces respectively, the extraneous connection with inside pad of cut-off, play sealedly
Protect pad in itself not by extraneous corrosiveness simultaneously；Secondly by the first sealing ring of the projection on the inner side of edge sealing
It is connected in the first seal groove on outer shroud end face, is avoided that the play of sealing ring diametrically first, next increases close
Seal ring improves the corrosion resistance to pad to the cladding area of outer shroud.
Preferably, the inner side of the base portion is convexly equipped with least one second sealing ring to the outer wall of outer shroud, described outer
The second seal groove housed for the second sealing ring is arranged with the outer wall of ring.
By using above-mentioned technical proposal, the cooperation of the second sealing ring and the second seal groove is avoided that sealing ring in axle first
Upward play, plays the effect preferably fixed with outer shroud；Secondly further increase sealing ring, to the cladding area of outer shroud, enters
Corrosion resistance of the raising of one step to pad.
Preferably, the equal semicircular in shape in section of first sealing ring and the second sealing ring.
By using above-mentioned technical proposal, semicircular section make it that the edge in the first sealing ring and the second sealing ring is
Arc, relatively other cross sectional shapes, the contact area when coordinating with the first seal groove with the second seal groove are bigger, can be more preferably
Be coated on outer shroud, the further corrosion resistance improved to pad.
Preferably, metallic framework, the shape of the metallic framework and the shape of sealing ring are embedded with the sealing ring
Shape is identical.
By using above-mentioned technical proposal, metallic framework can keep the shape of sealing ring, improve the compressive resistance of sealing ring.
Preferably, it is described non-if the winding band includes dried layer metal tape and non-metallic that alternately winding is set
Metal tape is included close to the teflon seal layer in inner ring side and the graphite encapsulation layer close to outer shroud side.
By using above-mentioned technical proposal, teflon seal layer combines the bilayer to form winding band with graphite encapsulation layer
Sealing structure, the characteristics of there is good resistance to acids and bases using teflon seal layer, in the pipeline of the decoctions such as chemical industry, pharmacy
After medium-term and long-term use, it is easy to the cleaning to transfer pipeline, and it is arranged on the peace that internal layer ensure that transfer pipeline Chinese medicine liquid
Entirely.Meanwhile, using the resistant to elevated temperatures feature of graphite encapsulation layer, it is disposed at the outside of graphite encapsulation layer so that twining after preparation
Improved around the heat resistance of pad on the whole.
Preferably, the winding band is V-arrangement, and the inner ring is connected with winding the concave surface of band, the outer shroud and winding
The convex surface connection of band, wherein being evenly equipped with multiple mounting holes on outer shroud.
By using above-mentioned technical proposal, metal tape V-arrangement and with the cooperations of inner and outer rings improved pad it is overall just
Degree, and the mounting hole opened up on outer shroud, can supply wearing for bolt, that is to say, that the part of bolt can be covered by after mounting
In pad, and then the bolt being wrapped by is protected, it is to avoid to be corroded by the external world.
Preferably, the height of the winding band is greater than the height of inner and outer rings, and identical with the height of sealing ring.
By using above-mentioned technical proposal, the height of sealing ring and winding band is greater than the height of inner and outer rings so that pad
When coordinating with two flanges, sealing ring is fitted with two flange faces with the both ends of the surface of winding band and plays sealing function, and winds band
As first of hermetic unit inside flange, sealing ring collectively form one as the second hermetic unit of flange outer rim
Individual double-layer sealing structure, improves the sealing after being installed to flange.
Preferably, zinc layers are plated with the surface of the inner and outer rings.
By using above-mentioned technical proposal, zinc layers can further improve the anti-corrosive properties of inner and outer rings.
In summary, the utility model has the advantages that：
1st, by rotproofness of the cladding sealing ring raising to pad in itself in the outer rim of outer shroud, and in the base of sealing ring
The first sealing ring and the second sealing ring set in portion and edge sealing coordinates with the first seal groove and the second seal groove on outer shroud,
First in radial direction and axial upper limit sealing ring, the cladding fixing between sealing ring and outer shroud is improved, and increase two
Cladding area between person, more preferably plays a protective role to outer shroud；
2nd, by the double-layer sealing structure that is combined with graphite encapsulation layer of teflon seal layer, and will wind band with
The height of sealing ring sets identical, improves the inside and outside sealing to flange.
Brief description of the drawings
Fig. 1 is the front view of novel environment friendly spiral wound gaskets；
Fig. 2 is the sectional view of novel environment friendly spiral wound gaskets.
In figure：1st, inner ring；2nd, band is wound；21st, metal tape；22nd, teflon seal layer；23rd, graphite encapsulation layer；3rd, it is outer
Ring；31st, mounting hole；32nd, the first seal groove；33rd, the second seal groove；4th, sealing ring；41st, base portion；411st, the second sealing ring；42、
Edge sealing；421st, the first sealing ring；5th, metallic framework.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of novel environment friendly spiral wound gaskets, including rounded inner ring 1, outer shroud 3 and it is arranged on two
Winding band 2 between person, uniformly offers multiple mounting holes 31 to wear bolt on outer shroud 3；In the outer rim of outer shroud 3 also
Sealing ring 4 is coated with, sealing ring 4 is made up of rubber or silica gel.
Referring to Fig. 2, sealing ring 4 includes base portion 41 and two edge sealing 42 extended by the inward at both ends ring 1 of base portion 41, wherein
Base portion 41 is fitted with the outer wall and both ends of the surface of outer shroud 3 respectively with two edge sealing 42.
The first sealing ring 421 is convexly equipped with towards the end face of outer shroud 3 in the inner side of two edge sealing 42, the inner side of base portion 41 is outside
The outer wall of ring 3 is convexly equipped with the second sealing ring 411, and the section of the first sealing ring 421 and the second sealing ring 411 is equal in the present embodiment
For semicircle, and the first sealing ring 421 is arranged on the end of edge sealing 42, axially spaced-apart of second sealing ring 411 along base portion 41
It is provided with three.And corresponding offered in the both ends of the surface of outer shroud 3 offers on first seal groove 32, the outer wall of outer shroud 3
Two seal grooves 33, after sealing ring 4 is coated to outer shroud 3, the first sealing ring 421 is embedded in the first seal groove 32, the second sealing
Circle 411 is embedded in the second seal groove 33.
In addition, being also bumped into metallic framework 5 in sealing ring 4, the shape of metallic framework 5 is identical with the shape of sealing ring 4,
In manufacturing process, the whole piece of sealing ring 4 one is gluing by neoprene by the head and the tail two ends of sealing ring 4 after metallic framework 5 is bumped into.
Above-mentioned winding band 2 is V-arrangement, if including the metal tape 21 and non-metallic 21 of dried layer alternating winding setting, winding
It is metal tape 21 with 2 most inner side and outermost, and is connected by spot welding with inner and outer rings 1,3, wherein inner ring 1 is with twining
Connected around the concave surface of band 2, outer shroud 3 is connected with winding the convex surface of band 2.
Non-metallic 21 is included close to the teflon seal layer 22 in the side of inner ring 1 and close to the side of outer shroud 3
Graphite encapsulation layer 23, the thickness of teflon seal layer 22 is more than or equal to the thickness of graphite encapsulation layer 23.
The height of whole winding band 2 is greater than the height of inner and outer rings 1,3, but identical and whole with the height of sealing ring 4
The diameter of individual pad can be arranged to identical with the end face diameter of flange；In addition, the corrosion resistance to improve inner and outer rings 1,3,
Zinc layers are plated with the surface of inner and outer rings 1,3.
When in use, outer shroud 3 is as locating ring, and the bolt of two flanges of connection can be inserted into mounting hole 31, and pad is pressed from both sides
Between two flanges, plurality of mounting hole 31 is used as positioning hole, and part bolt is wrapped in mounting hole 31 simultaneously,
The both ends of the surface of winding band 2 and sealing ring 4 are inconsistent with flange face respectively in addition, because sealing ring 4 has certain resilient engagement sheet
The winding band 2 that body has preferably elasticity can play good sealing effectiveness, and setting by sealing ring after the cooperation of two flanges
Put and pad is hedged off from the outer world, be effectively protected pad and do not corroded by the external world.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of novel environment friendly spiral wound gaskets, including inner ring（1）, outer shroud（3）And the winding being arranged between
Band（2）, it is characterised in that the outer shroud（3）Outer rim be coated with sealing ring（4）, the sealing ring（4）Including with outer shroud（3）
The base portion be close to of outer wall（41）And by base portion（41）Inward at both ends ring（1）Extend and be close to outer shroud（3）The edge sealing of end face
（42）, the edge sealing（42）Inner side to outer shroud（3）It is convexly equipped with the first sealing ring（421）, the outer shroud（3）End face offer
For the first sealing ring（421）The first accommodating seal groove（32）.
2. novel environment friendly spiral wound gaskets according to claim 1, it is characterised in that the base portion（41）Inner side
To outer shroud（3）Outer wall be convexly equipped with least one second sealing ring（411）, the outer shroud（3）Outer wall on be arranged with and supply second
Sealing ring（411）The second accommodating seal groove（33）.
3. novel environment friendly spiral wound gaskets according to claim 2, it is characterised in that first sealing ring
（421）With the second sealing ring（411）The equal semicircular in shape in section.
4. novel environment friendly spiral wound gaskets according to claim 1, it is characterised in that the sealing ring（4）It is embedded
Provided with metallic framework（5）, the metallic framework（5）Shape and sealing ring（4）Shape it is identical.
5. novel environment friendly spiral wound gaskets according to claim 1, it is characterised in that the winding band（2）Including
If the dried layer metal tape that alternately winding is set（21）And non-metallic（21）, the non-metallic（21）Including close in inner ring
（1）The teflon seal layer of side（22）And close to outer shroud（3）The graphite encapsulation layer of side（23）.
6. novel environment friendly spiral wound gaskets according to claim 1, it is characterised in that the winding band（2）For V
Shape, the inner ring（1）With winding band（2）Concave surface connection, the outer shroud（3）With winding band（2）Convex surface connection, wherein outside
Ring（3）On be evenly equipped with multiple mounting holes（31）.
7. novel environment friendly spiral wound gaskets according to claim 1, it is characterised in that the winding band（2）Height
Degree is greater than inner and outer rings（1、3）Height, and and sealing ring（4）Height it is identical.
8. novel environment friendly spiral wound gaskets according to claim 1, it is characterised in that the inner and outer rings（1、3）'s
Zinc layers are plated with surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004608.0U CN206513822U (en) | 2017-01-04 | 2017-01-04 | Novel environment friendly spiral wound gaskets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004608.0U CN206513822U (en) | 2017-01-04 | 2017-01-04 | Novel environment friendly spiral wound gaskets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513822U true CN206513822U (en) | 2017-09-22 |
Family
ID=59865300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004608.0U Expired - Fee Related CN206513822U (en) | 2017-01-04 | 2017-01-04 | Novel environment friendly spiral wound gaskets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620797A (en) * | 2017-10-01 | 2018-01-23 | 江苏金烨钛业有限公司 | A kind of metal wound gasket with screen pack |
-
2017
- 2017-01-04 CN CN201720004608.0U patent/CN206513822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620797A (en) * | 2017-10-01 | 2018-01-23 | 江苏金烨钛业有限公司 | A kind of metal wound gasket with screen pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20210104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |