CN209688101U - A kind of spiral wound gaskets for high temperature and pressure - Google Patents
A kind of spiral wound gaskets for high temperature and pressure Download PDFInfo
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- CN209688101U CN209688101U CN201920261086.1U CN201920261086U CN209688101U CN 209688101 U CN209688101 U CN 209688101U CN 201920261086 U CN201920261086 U CN 201920261086U CN 209688101 U CN209688101 U CN 209688101U
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Abstract
The utility model belongs to the technical field of SW with outside ring, it is intended to provide a kind of spiral wound gaskets for high temperature and pressure, its key points of the technical solution are that it successively includes interior reinforcing ring from the inside to the outside, sealing ring and outer annular-stiffer, the junction of interior reinforcing ring and outer annular-stiffer and sealing ring is provided with graphite ring flat-plate, sealing ring includes the metal tape and flexible graphite belt being arranged alternately, metal tape and flexible graphite belt include main body and two ennations, reinforcing strip is fixedly connected on the inside of graphite ring flat-plate, reinforcing strip is plugged in sealing ring, magnetic sheet is fixedly connected on the outside of reinforcing strip, reinforcing bar is fixedly connected in sealing ring；This spiral wound gaskets for high temperature and pressure can make the connection of sealing ring and interior reinforcing ring and outer annular-stiffer more securely and close by the setting of graphite ring flat-plate, the connection of SW with outside ring in the operating condition can be more close, will not there is a phenomenon where dislocation be broken, and ductility is more preferable, and leakproofness is stronger.
Description
Technical field
The utility model relates to the technical field of SW with outside ring, in particular to a kind of metal for high temperature and pressure twines
Wound gasket.
Background technique
In the connection intersection of the various pipings and valve deck such as factory's chemical industry, all it is attached by flange, and in order to guarantee
The leakproofness of flanged joint needs to be equipped with spirotallic gasket between two flanges.Branch of the spirotallic gasket usually by being located at inner ring
Pushing out ring, the central filler sealing structure of the positioning ring of outer ring and winding filling between are constituted.Support ring and positioning ring are logical
It is standing to be set to metal material.Support ring and positioning ring are usually arranged as metal material, and intermediate filling sealing structure is according to using
Graphite or polytetrafluoroethylene (PTFE) can be used in the difference of environment.
With the development of chemical industry, be badly in need of can high-temperature and high-presure resistent spiral wound gaskets to meet high temperature production
It needs, also there is high temperature resistant to spring back high spirotallic gasket in the prior art, for example, notification number is the utility model of CN204647298U
Patent, specifically discloses a kind of spiral wound gaskets for high temperature and pressure, and shape is circular ring shape, from the center of circle to extension according to
Secondary includes interior reinforcing ring, ring type filling and outer annular-stiffer；The material of the interior reinforcing ring and the outer annular-stiffer is nickel-base alloy
Inconel625, the ring type filling include several layers metal tape and filler material band that alternately winding is arranged；The metal tape and institute
The shape for stating filler material band is V-arrangement or W-shaped；The material of the metal tape is nickel-base alloy Inconel625, the filler material
Band is mica tape and/or flexible graphite belt.
Above-mentioned technical proposal increases the compression degree of spiral wound gaskets only by the raw material for changing metal tape, but
Be when spirotallic gasket and flange fasten, other than certain deformation can occur for metal tape and filler material band, interior reinforcing ring and
Certain deformation can occur for outer annular-stiffer, but the sealing effect of above-mentioned flange is relied solely in metal tape and packing material
Width, sealing effect is poor, and the integral extension of spirotallic gasket is also not good enough.
Utility model content
The utility model is to provide a kind of spiral wound gaskets for high temperature and pressure, good with ductility, sealing
The advantages of better effect.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of spiral wound gaskets for high temperature and pressure, from the inside to the outside successively include interior reinforcing ring, sealing ring with
And outer annular-stiffer, the sealing ring include the metal tape and flexible graphite belt being arranged alternately, the metal tape and flexible graphite belt
It is arranged in wound form ring-type, the metal tape and flexible graphite belt include main body and two ennations, and the section of the main body is in V
The junction of type, the interior reinforcing ring and outer annular-stiffer and sealing ring is provided with graphite ring flat-plate, and the inside of the graphite ring flat-plate is solid
Surely it is connected with reinforcing strip, the reinforcing strip is plugged in sealing ring.
By using above-mentioned technical proposal, the setting of graphite ring flat-plate can make sealing ring and interior reinforcing ring and outer annular-stiffer
Connection is more securely and close, so that outer annular-stiffer and interior reinforcing ring also can when spirotallic gasket is under pressure
The stability of connection is kept with sealing ring, thus in the operating condition can be relatively stable play connection sealing function, reinforce
The setting of item keeps the connection of graphite ring flat-plate and sealing ring more close, will not when SW with outside ring is under pressure
With sealing ring there is a phenomenon where being detached from, therefore sealing effect is more preferable.
Further setting: magnetic sheet is fixedly connected on the outside of the reinforcing strip.
By using above-mentioned technical proposal, the setting of magnetic sheet can make the connection of reinforcing strip and metal tape more secured,
When entire SW with outside ring compressive deformation, reinforcing strip will not be detached from sealing ring, thus make graphite ring flat-plate with it is close
The better tightness of seal ring.
Further setting: the lower end of the graphite ring flat-plate is fixedly connected with first and stings tight line tooth, the interior reinforcing ring and outer
It is fixedly connected with second on the outside of reinforcing ring and stings tight line tooth, described first, which stings tight line tooth, stings tight line tooth with second and be interlocked.
By using above-mentioned technical proposal, first sting tight line tooth and second sting tight line tooth setting can make graphite ring flat-plate with
The connection of interior reinforcing ring and outer annular-stiffer is more close, graphite ring flat-plate when deformation occurs also can with interior reinforcing ring and
The phenomenon that outer annular-stiffer closely fastens, and will not be subjected to displacement, therefore the ductility of entire SW with outside ring can be improved.
Further setting: the junction of the graphite ring flat-plate and sealing ring is provided with refractory seals glue.
By using above-mentioned technical proposal, refractory seals glue can be held under -60 ° to+1280 ° of constant temperature working condition
Continuous sex work also will not influence efficiency, and refractory seals film can play certain bonding to sealing ring and graphite ring flat-plate
Effect enables sealing ring to connect with graphite ring flat-plate more securely and close, and refractory seals film is in solidification
Plasticity is stronger under state, even if running under the working environment of high pressure, sealing film will not rupture, can be better with flange
Fitting.
Further setting: the junction of the metal tape and flexible graphite belt offers annular recess, the annular recess
Interior be fitted into has magnet ring.
By using above-mentioned technical proposal, magnet ring is provided in annular recess can be such that SW with outside ring connects with flange
It is more secured when connecing, and can directly be connected with flange when SW with outside ring is installed, installation convenience
Fast.
Further setting: the lower end of the magnet ring be fixedly connected there are two connect raised line.
By using above-mentioned technical proposal, the setting for connecting raised line can plug with metal tape and flexible graphite belt
Match, the bonding strength of magnet ring can be enhanced, thus also can be with sealing ring when entire SW with outside ring is by deformation
Certain bonding strength is kept, the support strength of entire SW with outside ring is kept.
Further setting: multiple reinforcing bars are fixedly connected in the sealing ring, the reinforcing bar is located at two ennations
In.
By using above-mentioned technical proposal, multiple reinforcing bars can play the work of reinforcing to metal tape and flexible graphite belt
With the rigidity for being able to maintain metal tape and flexible graphite belt when by biggish pressure, so as to wind
Gasket can be more firm when being in the working condition of high temperature and pressure, even if spirotallic gasket is for a long time in the work of high temperature
It is run under state, metal tape and flexible graphite belt are also less likely to occur the phenomenon that separation is broken, and guarantee the normal operation of flange
In conclusion the utility model has the following beneficial effects:
1, the setting of graphite ring flat-plate can make the connection of sealing ring and interior reinforcing ring and outer annular-stiffer more securely and tight
It is close, thus in the operating condition can be relatively stable play connection sealing function, the setting of reinforcing strip make graphite ring flat-plate with it is close
The connection of seal ring is more close, and what will not be detached from sealing ring when SW with outside ring is under pressure shows
As, therefore sealing effect is more preferable；
2, the setting of magnetic sheet can make the connection of reinforcing strip and metal tape more secured, to make reinforcing strip and metal tape
Better tightness；
3, first sting tight line tooth and second sting tight line tooth setting can make graphite ring flat-plate and interior reinforcing ring and outer annular-stiffer
Connection it is more close；
4, multiple reinforcing bars can play the role of reinforcing to metal tape and flexible graphite belt, so as in spirotallic gasket
It can be more firm when working condition in high temperature and pressure.
Detailed description of the invention
Fig. 1 is the overall structure diagram for embodying SW with outside ring；
Fig. 2 is the partial cross-sectional view for embodying SW with outside ring；
Fig. 3 is for embodying the structure enlargement diagram in Fig. 2 at A；
Fig. 4 is the cross-sectional view for embodying reinforcing bar in sealing ring.
In figure, 1, interior reinforcing ring；2, sealing ring；21, metal tape；22, flexible graphite belt；3, outer annular-stiffer；4, main body；5,
Ennation；6, graphite ring flat-plate；7, reinforcing strip；8, magnetic sheet；9, first tight line tooth is stung；10, second tight line tooth is stung；11, high temperature resistant is close
Sealing；12, annular recess；13, magnet ring；14, raised line is connected；15, reinforcing bar.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment: a kind of spiral wound gaskets for high temperature and pressure, as shown in Figure 1, it successively includes from the inside to the outside
The junction of interior reinforcing ring 1, sealing ring 2 and outer annular-stiffer 3, interior reinforcing ring 1 and outer annular-stiffer 3 and sealing ring 2 is provided with stone
Black ring flat-plate 6, the setting of graphite ring flat-plate 6 can make the connection of sealing ring 2 and interior reinforcing ring 1 and outer annular-stiffer 3 more securely and
Closely, the connection of SW with outside ring in the operating condition can be more close, will not there is a phenomenon where dislocation to be broken, and
Ductility is more preferable, and leakproofness is stronger.
As shown in Fig. 2, sealing ring 2 includes the metal tape 21 and flexible graphite belt 22 being arranged alternately, metal tape 21 and flexibility
Graphite tape 22 is arranged in wound form ring-type, and metal tape 21 and flexible graphite belt 22 include main body 4 and two ennations 5, main body 4
Section is V-shaped, and the inside of graphite ring flat-plate 6 is fixedly connected with reinforcing strip 7, and reinforcing strip 7 is plugged in sealing ring 2, and reinforcing strip 7 can
Keep the connection between graphite ring flat-plate 6 and sealing ring 2 more secured, when deformation occurs for SW with outside ring not
It can there is a phenomenon where be detached from.
As shown in Fig. 2, the outside of reinforcing strip 7 is fixedly connected with magnetic sheet 8, the setting of magnetic sheet 8 can make reinforcing strip 7 and metal
Connection with 21 is more secured, and the lower end of graphite ring flat-plate 6 is fixedly connected with first and stings tight line tooth 9, interior reinforcing ring 1 and outer reinforcement
The outside of ring 3 is fixedly connected with second and stings tight line tooth 10, and first, which stings tight line tooth 9, stings tight line tooth 10 with second and be interlocked, in graphite
Ring flat-plate 6 can match when installation with interior reinforcing ring 1 and outer annular-stiffer 3 to be connect, so that graphite ring flat-plate 6 is being under pressure
When phenomena such as will not being subjected to displacement dislocation, therefore connect more close, the leakproofness of entire spirotallic gasket is stronger.
As shown in figure 3, the junction of graphite ring flat-plate 6 and sealing ring 2 is provided with refractory seals glue 11, refractory seals glue
11 can choose the sealant of 1280 DEG C of types, can be by graphite ring flat-plate 6 and sealing ring 2 when producing SW with outside ring
It is attached, bonding strength is bigger, keeps graphite ring flat-plate 6 and the connection of sealing ring 2 more close.
As shown in figure 3, the junction of metal tape 21 and flexible graphite belt 22 offers annular recess 12, in annular recess 12
Chimeric to have magnet ring 13, the lower end of magnet ring 13 is fixedly connected there are two raised line 14 is connected, and connection raised line 14 and magnet ring 13 are integrated knot
The setting of composition type, magnet ring 13 can accelerate the connection of spirotallic gasket and flange, so as to more convenient when installation,
Spirotallic gasket is bonded with flange can realize pre-installation, then is fixedly connected by bolt, without carrying out other supports
It can simply realize installation.
As shown in figure 4, being fixedly connected with reinforcing bar 15 in sealing ring 2, reinforcing bar 15 is located in two ennations 5, reinforces
Bar 15 is becket, and reinforcing bar 15 can enhance the bonding strength between metal tape 21 and flexible graphite belt 22, in spirotallic gasket
It is able to maintain certain bonding strength when by high pressure, the work of spirotallic gasket will not be made there is a phenomenon where being detached from and being broken
It is more stable to make state, reinforcing bar 15 is to be staggered with reinforcing strip 7, plays better connection function.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
1. a kind of spiral wound gaskets for high temperature and pressure successively include interior reinforcing ring (1), sealing ring from the inside to the outside
(2) and outer annular-stiffer (3), the sealing ring (2) includes the metal tape (21) and flexible graphite belt (22) being arranged alternately, described
Metal tape (21) and flexible graphite belt (22) are arranged in wound form ring-type, and the metal tape (21) includes with flexible graphite belt (22)
Main body (4) and two ennations (5), the section of the main body (4) are V-shaped, it is characterised in that: the interior reinforcing ring (1) and outer
The junction of reinforcing ring (3) and sealing ring (2) is provided with graphite ring flat-plate (6), is fixedly connected on the inside of the graphite ring flat-plate (6)
Reinforcing strip (7), the reinforcing strip (7) are plugged in sealing ring (2).
2. a kind of spiral wound gaskets for high temperature and pressure according to claim 1, it is characterised in that: the reinforcing
Magnetic sheet (8) are fixedly connected on the outside of item (7).
3. a kind of spiral wound gaskets for high temperature and pressure according to claim 1, it is characterised in that: the graphite
The lower end of ring flat-plate (6) is fixedly connected with first and stings tight line tooth (9), and the interior reinforcing ring (1) and the outside of outer annular-stiffer (3) are fixed
It is connected with second and stings tight line tooth (10), described first, which stings tight line tooth (9), stings tight line tooth (10) with second and be interlocked.
4. a kind of spiral wound gaskets for high temperature and pressure according to claim 1, it is characterised in that: the graphite
The junction of ring flat-plate (6) and sealing ring (2) is provided with refractory seals glue (11).
5. a kind of spiral wound gaskets for high temperature and pressure according to claim 1, it is characterised in that: the metal
The junction of band (21) and flexible graphite belt (22) offers annular recess (12), and being fitted into the annular recess (12) has magnet ring
(13)。
6. a kind of spiral wound gaskets for high temperature and pressure according to claim 5, it is characterised in that: the magnet ring
(13) lower end connects raised line (14) there are two being fixedly connected.
7. a kind of spiral wound gaskets for high temperature and pressure according to claim 1, it is characterised in that: the sealing
It is fixedly connected with reinforcing bar (15) in ring (2), the reinforcing bar (15) is located in two ennations (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261086.1U CN209688101U (en) | 2019-02-28 | 2019-02-28 | A kind of spiral wound gaskets for high temperature and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261086.1U CN209688101U (en) | 2019-02-28 | 2019-02-28 | A kind of spiral wound gaskets for high temperature and pressure |
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| Publication Number | Publication Date |
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| CN209688101U true CN209688101U (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920261086.1U Active CN209688101U (en) | 2019-02-28 | 2019-02-28 | A kind of spiral wound gaskets for high temperature and pressure |
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| CN (1) | CN209688101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156316A (en) * | 2019-12-23 | 2020-05-15 | 中广核研究院有限公司 | Nonstandard flange sealing gasket for large opening hole and preparation method and sealing method thereof |
-
2019
- 2019-02-28 CN CN201920261086.1U patent/CN209688101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156316A (en) * | 2019-12-23 | 2020-05-15 | 中广核研究院有限公司 | Nonstandard flange sealing gasket for large opening hole and preparation method and sealing method thereof |
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