CN206572102U - Spiral wound gaskets - Google Patents
Spiral wound gaskets Download PDFInfo
- Publication number
- CN206572102U CN206572102U CN201720205652.8U CN201720205652U CN206572102U CN 206572102 U CN206572102 U CN 206572102U CN 201720205652 U CN201720205652 U CN 201720205652U CN 206572102 U CN206572102 U CN 206572102U
- Authority
- CN
- China
- Prior art keywords
- ring
- metal tape
- sealing ring
- spiral wound
- metallic
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 229910052751 metal Inorganic materials 0.000 claims abstract description 70
- 239000002184 metal Substances 0.000 claims abstract description 70
- 239000000945 filler Substances 0.000 claims abstract description 5
- 239000010425 asbestos Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a kind of spiral wound gaskets, including the inner ring of airtight connection, sealing ring and to middle ring successively from inside to outside, sealing ring includes metal tape and the non-metallic formed by non-metallic fillers, metal tape and non-metallic are shaped as V-arrangement, inner ring is connected with the concave surface of metal tape internal diameter, the contact surface of inner ring and metal tape is provided with elastic ring, and elastic ring is abutted with the inner side end of metal tape internal diameter.After the end face of pipe flange is pressed on sealing ring, metal tape on sealing ring is pressurized and can deformed slightly inwardly, inner side end on metal tape internal diameter also can be extruded inwardly elastic ring, now due to the elastic reaction of elastic ring, a reverse active force can be produced to the inner side end of metal tape internal diameter, so as to enhancing the outside elasticity of metal tape, allow sealing ring abuts with the end face of pipe flange is even closer so that the sealing effectiveness between sealing ring and pipe flange is more preferable.
Description
Technical field
The utility model is related to a kind of gasket seal, more particularly to a kind of spiral wound gaskets.
Background technology
Spiral wound gaskets are widely used in fields such as petrochemical industries, and using effect is very good.Gold
It is overlapped with non-metallic by " V " shape or " W " shape metal tape to belong to spiral wound gasket, and continuous winding is formed, and is used in beginning, end
Spot welding mode fixes metal tape.
Spiral wound gaskets four kinds of patterns of component point, in addition to basic model, conventional also has band inner ring type, band to middle ring
Type, band inner ring and centering are ring-like.It is described to refer to be embedded with inner ring by the inner ring of spiral wound gaskets with inner ring type；Band is to middle ring
Type refers to be cased with to middle ring on the outer ring of spiral wound gaskets；Refer in spiral wound gaskets with inner ring and centering are ring-like
Circle is embedded with inner ring, while being also cased with to middle ring on outer ring.
Chinese patent notification number CN203442372U discloses a kind of " environment-friendly type semimetal spiral wound gasket ", including interior
Ring, wrap and outer shroud, in addition to sealing ring；The inner ring, wrap, outer shroud and sealing ring closed company successively from inside to outside
Connect；The wrap is set to V-shaped；The concave surface connection of the inner ring and wrap；The convex surface of the outer shroud and wrap connects
Connect；Bolt hole is arranged at intervals with the outer shroud.
Elasticity of the above-mentioned environment-friendly type semimetal spiral wound gasket typically all by V-arrangement metal tape outwards outwards squeezes non-metallic
Pressure to abut with the end face of pipe flange to be sealed, therefore very high to the performance requirement of metal tape.
Utility model content
The purpose of this utility model be to provide it is a kind of can strengthen metal tape outwards elasticity spiral wound gaskets.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of spiral wound gaskets, including inner ring, sealing ring and to middle ring, the inner ring, sealing ring and to middle ring from
Interior to arrive outer airtight connection successively, the sealing ring includes metal tape and the non-metallic formed by non-metallic fillers, the metal
Band and non-metallic are shaped as V-arrangement, and the inner ring is connected with the concave surface of the metal tape internal diameter, the inner ring and metal tape
Contact surface is provided with elastic ring, and the elastic ring is abutted with the inner side end of metal tape internal diameter.
By using such scheme, because elastic ring is abutted with the inner side end of metal tape internal diameter, when the end of pipe flange
After face pressure is on sealing ring, the metal tape on sealing ring is pressurized and can deformed slightly inwardly, the inner side end on metal tape internal diameter
Inwardly elastic ring can be extruded, now due to the elastic reaction of elastic ring, the inner side end of metal tape internal diameter can be produced
One reverse active force, so as to enhance the outside elasticity of metal tape, allows sealing ring to be abutted more with the end face of pipe flange
Step up close so that the sealing effectiveness between sealing ring and pipe flange is more preferable.
As a kind of improvement of the present utility model, it is located in the inner ring on the end face abutted with metal tape and offers ring
Groove, the elastic ring is placed in annular groove.
By using such scheme, elastic ring is placed in annular groove, can cause elastic ring between inner ring and metal tape
Fixed more stablizes.
As a kind of improvement of the present utility model, the elastic ring uses O-ring.
By using such scheme, O-ring is cheap, is simple to manufacture, and working life is high, can bear tens megapascal (MPa)s
Pressure, O-ring also have sealed effect, can prevent corrosive substance from corroding sealing ring from metal tape inner radius.
It is described to being arranged at intervals with bolt hole in middle ring as a kind of improvement of the present utility model, it is described to the outer of middle ring
Edge is provided with sealing ring.
By using such scheme, sealing ring is set in the outer rim to middle ring, made to producing sealing effect in middle ring external diameter
Really, so as to protect flange face, bolt and pad to isolate in itself with outside air and liquid, corrosive goods has been efficiently controlled
The corrosion of matter and gas to flange, bolt and pad in itself, extension flange, bolt, the service life of pad in itself, is avoided simultaneously
Pollution of the rusty stain to ground environment.
As a kind of improvement of the present utility model, the sealing ring is concave, the spill mouthful occlusion of the sealing ring
To the external diameter of middle ring.
By using such scheme, it is ensured that sealing ring is stably fixed to the outer rim to middle ring.
As a kind of improvement of the present utility model, the outer radius of the wound section of the sealing ring includes 3 ~ 5 circle metal tapes,
The inner radius of the wound section of the sealing ring is included in the middle part of 2 ~ 3 circle metal tapes, the winding of the sealing ring by metal tape and non-
Metal is spaced to be constituted.
By using such scheme, multi-turn is all set to be not added with the metals of non-metallic fillers in the external diameter and internal diameter of sealing ring
Band, can increase and sealed effect is primarily served in the middle part of the bulk strength of sealing ring, sealing ring, and stress is relatively small, will
Metal tape and non-metallic, which are arranged at intervals, can play sealed effect, and certain structural strength is can guarantee that again.
As a kind of improvement of the present utility model, the material of the metal tape is any in stainless steel, carbon steel, nickel or titanium
It is a kind of.
By using such scheme, the material of metal tape is any one in stainless steel, carbon steel, nickel or titanium, Ke Yibao
Card metal tape has excellent resilience, adapts to pressure thermal cycle and vibration in pipe-line system.
As it is of the present utility model it is a kind of improve, the material of the non-metallic is graphite, asbestos, polytetrafluoroethylene (PTFE), non-
Any one in asbestos paper, mica or ceramics.
By using such scheme, the material of non-metallic is graphite, asbestos, polytetrafluoroethylene (PTFE), non-asbestos paper, mica or
Any one in ceramics, it is ensured that the sealing of sealing ring.
In summary, the utility model has the advantages that：
1st, set on the contact surface of the metal tape in inner ring and sealing ring in elastic ring, and elastic ring and metal tape
The inner side end in footpath is abutted, after the end face of pipe flange is pressed on sealing ring, and the metal tape on sealing ring can slightly due to being pressurized
Micro- to be deformed inward, the inner side end on metal tape internal diameter also can be extruded inwardly elastic ring, now due to the bullet of elastic ring
Property effect, a reverse active force can be produced to the inner side end of metal tape internal diameter, so as to enhance the outside bullet of metal tape
Property so that the sealing effectiveness between sealing ring and pipe flange is more preferable；Opened on the end face abutted with metal tape inner ring is upper
Provided with annular groove, elastic ring is placed in annular groove, can cause elastic ring is fixed between inner ring and metal tape more to stablize；Bullet
Property circle use O-ring, O-ring is cheap, is simple to manufacture, and working life is high, can bear the pressure of tens megapascal (MPa)s, O-shaped
Circle also has sealed effect, can prevent corrosive substance from corroding sealing ring from metal tape inner radius；
2nd, bolt hole is arranged at intervals with to middle ring, the outer rim to middle ring is provided with sealing ring, in the outer rim to middle ring
Upper setting sealing ring, makes to producing sealing effectiveness in middle ring external diameter, thus protect flange face, bolt and pad in itself with the external world
The isolation of air and liquid, has efficiently controlled the corrosion of corrosive substance and gas to flange, bolt and pad in itself, extension
The service life of flange, bolt, pad in itself, while avoiding pollution of the rusty stain to ground environment；Sealing ring is concave,
External diameter of the spill mouthful occlusion of sealing ring to middle ring, it is ensured that sealing ring is stably fixed to the outer rim to middle ring.
Brief description of the drawings
Fig. 1 is the front view of spiral wound gaskets；
Fig. 2 is the half sectional view of spiral wound gaskets.
In figure, 1, inner ring；101st, annular groove；2nd, sealing ring；201st, metal tape；202nd, non-metallic；3rd, to middle ring；301st, spiral shell
Keyhole；4th, elastic ring；5th, sealing ring.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment：
Reference picture 1, a kind of spiral wound gaskets, including inner ring 1, sealing ring 2 and to middle ring 3, inner ring 1, the and of sealing ring 2
To the airtight connection successively from inside to outside of middle ring 3, opening up eight to uniform intervals in middle ring 3 has bolt hole 301, to middle ring 3
Sealing ring 5 is additionally provided with outer rim.
With reference to Fig. 2, sealing ring 5 is concave, and the spill mouthful of sealing ring 5 is engaged the external diameter to middle ring 3, sealing ring 5
The thickness of thickness and sealing ring 2 is close；The thickness ratio inner ring 1 of sealing ring 2 and big to the thickness of middle ring 3, sealing ring 2 includes metal
The non-metallic 202 formed with 201 and by non-metallic fillers, the material of metal tape 201 is in stainless steel, carbon steel, nickel or titanium
Any one, metal tape 201 is from being made of stainless steel, and the material of non-metallic 202 is graphite, asbestos, polytetrafluoroethylene (PTFE), non-
Any one in asbestos paper, mica or ceramics, non-metallic 202 of graphite from being made up.
The shape of metal tape 201 and non-metallic 202 is all V-arrangement, and the outer radius of the wound section of sealing ring 2 is wound with 4 circles
Metal tape 201, the inner radius of the wound section of sealing ring 2 is wound with the middle part of 2 circle metal tapes 201, the winding of sealing ring 2 by metal tape
201 and non-metallic 202 interval constitute, middle ring 3 be connected with the convex surface of the external diameter of outermost metal tape 201, inner ring 1 and most on the inside of
The concave surface connection of the internal diameter of metal tape 201.
It is located in inner ring 1 on the upper and lower ends face abutted with metal tape 201 and respectively offers in an annular groove 101, annular groove 101
Elastic ring 4 is embedded with, elastic ring 4 uses O-ring, and elastic ring 4 is abutted with the inner side end of the internal diameter of metal tape 201.
After the end face of pipe flange is pressed in 2 both sides of sealing ring, the metal tape 201 on sealing ring 2 can somewhat due to being pressurized
It is deformed inward, causes the inner side end on the internal diameter of metal tape 201 inwardly to extrude elastic ring 4, now due to elastic ring 4
Elastic reaction, can produce a reverse active force, so as to enhance metal tape 201 to the inner side end of the internal diameter of metal tape 201
Outside elasticity, allow sealing ring 2 abuts with the end face of pipe flange is even closer so that between sealing ring 2 and pipe flange
Sealing effectiveness it is more preferable.
And due to setting sealing ring 5 in the outer rim to middle ring 3, make to producing sealing effectiveness in the external diameter of middle ring 3, so that
Protect flange face, bolt and pad to isolate in itself with outside air and liquid, efficiently control corrosive substance gentle
Corrosion of the body to flange, bolt and pad in itself, extension flange, bolt, the service life of pad in itself, while avoiding rusty stain
Pollution to ground environment.
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 spiral wound gaskets, including inner ring（1）, sealing ring（2）With to middle ring（3）, the inner ring（1）, sealing ring
（2）With to middle ring（3）Airtight connection, the sealing ring successively from inside to outside（2）Including metal tape（201）With by non-metallic fillers
The non-metallic of formation（202）, the metal tape（201）And non-metallic（202）Be shaped as V-arrangement, it is characterised in that it is described
Inner ring（1）With the metal tape（201）The concave surface connection of internal diameter, the inner ring（1）With metal tape（201）Contact surface be provided with
Elastic ring（4）, the elastic ring（4）With metal tape（201）The inner side end of internal diameter is abutted.
2. spiral wound gaskets according to claim 1, it is characterised in that the inner ring（1）On be located at and metal tape
（201）Annular groove is offered on the end face of abutting（101）, the elastic ring（4）It is placed in annular groove（101）It is interior.
3. spiral wound gaskets according to claim 2, it is characterised in that the elastic ring（4）Using O-ring.
4. spiral wound gaskets according to claim 1, it is characterised in that described to middle ring（3）On be arranged at intervals with
Bolt hole（301）, it is described to middle ring（3）Outer rim be provided with sealing ring（5）.
5. spiral wound gaskets according to claim 4, it is characterised in that the sealing ring（5）For concave, institute
State sealing ring（5）Spill mouthful occlusion to middle ring（3）External diameter.
6. spiral wound gaskets according to claim 1, it is characterised in that the sealing ring（2）Wound section
Outer radius includes 3 ~ 5 circle metal tapes（201）, the sealing ring（2）Wound section inner radius include 2 ~ 3 circle metal tapes
（201）, the sealing ring（2）Winding in the middle part of by metal tape（201）And non-metallic（202）Interval is constituted.
7. spiral wound gaskets according to claim 1, it is characterised in that the metal tape（201）Material for not
Any one in steel, carbon steel, nickel or the titanium of becoming rusty.
8. spiral wound gaskets according to claim 1, it is characterised in that the non-metallic（202）Material be
Any one in graphite, asbestos, polytetrafluoroethylene (PTFE), non-asbestos paper, mica or ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205652.8U CN206572102U (en) | 2017-03-03 | 2017-03-03 | Spiral wound gaskets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205652.8U CN206572102U (en) | 2017-03-03 | 2017-03-03 | Spiral wound gaskets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206572102U true CN206572102U (en) | 2017-10-20 |
Family
ID=60056252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720205652.8U Expired - Fee Related CN206572102U (en) | 2017-03-03 | 2017-03-03 | Spiral wound gaskets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206572102U (en) |
-
2017
- 2017-03-03 CN CN201720205652.8U patent/CN206572102U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20200303 |