CN106884985B - A kind of SW with outside ring - Google Patents
A kind of SW with outside ring Download PDFInfo
- Publication number
- CN106884985B CN106884985B CN201710123955.XA CN201710123955A CN106884985B CN 106884985 B CN106884985 B CN 106884985B CN 201710123955 A CN201710123955 A CN 201710123955A CN 106884985 B CN106884985 B CN 106884985B
- Authority
- CN
- China
- Prior art keywords
- ring
- flat segments
- bending segment
- metallic
- support
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of SW with outside ring, its key points of the technical solution are that including the support ring in inner ring is arranged, locating ring in outer ring is set, and the metal tape and non-metallic being arranged between support ring and locating ring, both metal tape and non-metallic are bonded to each other spiral winding to form sealing ring, the excircle of the support ring is equipped with outwardly projecting support fin, the inner periphery of the locating ring is equipped with the locking groove being recessed inwardly, the sealing ring has the bending segment for the setting that is in the shape of the letter V positioned at middle part, and it is located at both sides and is connected to the upper flat segments of bending segment and lower flat segments, the support fin is pushed against in the concave surface of bending segment, the convex surface of the bending segment is pushed against in locking groove, the upper flat segments and lower flat segments are pushed against respectively on the excircle of support ring and the inner periphery of locating ring.
Description
Technical field
The present invention relates to pad field, more particularly to a kind of SW with outside ring.
Background technology
SW with outside ring is one kind by certain geometric cross section（Such as V-type or W types）Shaped-steel strip replace with non-metallic
The combined flat shim being entwined.In the inner side and outer side of SW with outside ring, it is made of a few circle steel bands, inside steel band is opened
Spirotallic gasket is formed an entirety by end with outside steel band end by butt-joint.
SW with outside ring takes full advantage of the heat resistance of shaped-steel strip, compression resilience, at the same by shaped-steel strip with
The combination of non-metallic makes SW with outside ring be provided with the excellent sealing performance of non-metallic filler band.SW with outside ring exists
It can be used under general condition, under the conditions of thering is stress relaxation, temperature and pressure to have fluctuation, impact and vibrations
Flange seal.Due to SW with outside ring have it is simple in structure, it is at low cost, to adaptable, the pressure-resistant range of medium and temperature
Width, have many advantages, such as it is multiple-sealed, compared with other gasket seals, have more obvious advantage, thus at present it is big
Amount is in the pressure vessels and pipes structure of high temperature and pressure.SW with outside ring as a kind of sealing element of function admirable,
In a short time, extensive in field of industrial production such as oil, chemical industry, metallurgy, power generation, coal, machinery, shipbuilding, nuclear industry
It promotes and applies.
Since SW with outside ring belongs to complex superposition type structure, the mechanical performances such as antitorque, bending resistance and shearing resistance have bright
Aobvious free property, and differ greatly, it is just easy to destroy in the weak direction such as thickness direction and vertical axial, especially in metal
When the diameter of spirotallic gasket reaches 2 meters to 3 meters or more, the spoilage higher of SW with outside ring, in transport and installation, if
It receives impact or vibrations is excessive, the phenomenon that by causing the steel band in the SW with outside ring to fall apart.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of SW with outside ring, has and be not easy
The characteristics of falling apart.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of SW with outside ring, including be arranged inner ring support ring, be arranged outer ring locating ring and setting exist
Metal tape between support ring and locating ring and non-metallic, both metal tape and non-metallic are bonded to each other spiral winding with shape
At sealing ring, the excircle of the support ring is equipped with outwardly projecting support fin, and the inner periphery of the locating ring is equipped with
The locking groove being recessed inwardly, the sealing ring have be located at middle part be in the shape of the letter V setting bending segment and positioned at both sides and point
It is not connected to the upper flat segments of bending segment and lower flat segments, the support fin is pushed against in the concave surface of bending segment, the bending segment
Convex surface push against in locking groove, the upper flat segments and lower flat segments are pushed against the excircle and locating ring of support ring respectively
Inner periphery on.
Through the above technical solutions, when the SW with outside ring bears the torsion on vertical axial direction, in sealing ring
Upper flat segments and lower flat segments can mutually contradict and directly be pushed against the excircle of support ring or the inner periphery of locating ring
On, by the blocking of the excircle or locating ring inner periphery of support ring, cause to seal to effectively prevent sealing ring overflexing
Arching upward in the middle part of ring, and when sealing ring bears axially vertical vibrations or impact, the upper flat segments of contact area bigger and
Frictional force between lower flat segments is more sufficient, effectively avoids the problem that sealing ring falls apart.
Preferably, the non-metallic is one or more in asbestos, graphite, polytetrafluoroethylene (PTFE), ceramic fibre.
Through the above technical solutions, one or more manufactured non-in asbestos, graphite, polytetrafluoroethylene (PTFE), ceramic fibre
Metal tape can effectively improve the sealing performance of the sealing ring.
Preferably, the non-metallic is asbestos.
Preferably, it is convex equipped with pushing against and being deep in the upper anticreep on non-metallic to be located at upper flat segments for the metal tape
Muscle, the metal tape are located at lower flat segments and are equipped with abutting and are deep in the lower anticreep convex ribs on non-metallic.
Through the above technical solutions, upper anticreep convex ribs and lower anticreep convex ribs are deep in non-metallic, and this non-metallic
When using asbestos, since asbestos have certain elasticity and wrapping property, so that the connection between metal tape and non-metallic
Compactness is stronger, effectively to avoid generating sliding between metal tape and non-metallic, and leads to falling apart for sealing ring.
Preferably, the upper flat segments, which are located above upper anticreep convex ribs, is formed with holding tank, straight section under described
It is formed with lower holding tank below lower anticreep convex ribs, paraffin is filled in the upper holding tank and lower holding tank.
Through the above technical solutions, due to the setting of upper flat segments and lower flat segments, although upper flat segments and lower flat segments
The antitorque of the sealing ring, bending resistance, shear behavior can be improved, but upper flat segments and lower flat segments vertically connect with the end face of flange
It touches, the aggravation that end face of flange will be caused to wear；Therefore, when the SW with outside ring is installed between the flanges, due to pipeline height
The pipeline of the presence of warm high pressure, high temperature conducts heat in the SW with outside ring, so that melted paraffin wax, after fusing
Paraffin will ooze out into the upper and lower surface of SW with outside ring, be contacted with end face of flange with playing lubricated metal spirotallic gasket
Purpose, effectively reduce end face of flange abrasion；And it will be absorbed by asbestos by a part after melted paraffin wax, absorbed by paraffin
Asbestos will have a water resisting property, to further improve the sealing performance of the SW with outside ring, wherein in room temperature shape
Under state, paraffin will be recovered to solid, achieve the purpose that recycling is not lost in.
Preferably, the inflection point angle a of the bending segment is 60 °.
Preferably, the inflection point of the bending segment is formed with stress segmental arc.
Through the above technical solutions, the bending angle a of bending segment is 60 °, it is pressurized at this time on the upper and lower surface of sealing ring
When, after extruding force is transferred to bending segment by upper flat segments, lower flat segments, extruding force concentrates the curved of bending segment side at one end
On break and concentrate on the bending segment other side both sides and upper flat segments and lower flat segments junction, as a result, on inflection point
Stress segmental arc can effectively avoid stress concentration to improve the bend resistance ability and resilience of the bending segment.
In conclusion the present invention having the beneficial effect that in contrast to the prior art：
When the SW with outside ring bears the torsion on vertical axial direction, upper flat segments in sealing ring and lower flat
Straight section can be contradicted mutually and be directly pushed against on the excircle of support ring or the inner periphery of locating ring, and the outer circle of support ring is passed through
The blocking of week or locating ring inner periphery, leads to arching upward in the middle part of sealing ring to effectively prevent sealing ring overflexing, and
When sealing ring bears axially vertical vibrations or impact, the frictional force between the upper flat segments of contact area bigger and lower flat segments
It is more sufficient, effectively avoid the problem that sealing ring falls apart.
Description of the drawings
Fig. 1 is the front view of embodiment；
Fig. 2 is the sectional view of embodiment；
Fig. 3 be support ring, locating ring, sealing ring scheme of installation；
Fig. 4 is the structural schematic diagram of sealing ring.
Reference numeral：1, support ring；2, locating ring；3, sealing ring；31, metal tape；32, non-metallic；4, fin is supported；
5, groove is locked；6, end face platform；7, bending segment；71, inflection point；72, top；73, following；8, upper flat segments；9, straight under
Section；10, upper anticreep convex ribs；11, lower anticreep convex ribs；12, upper holding tank；13, lower holding tank；14, paraffin.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
A kind of SW with outside ring in conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, including be arranged inner ring support ring 1, setting outside
The locating ring 2 of circle and the metal tape 31 and non-metallic 32 being arranged between support ring 1 and locating ring 2, metal tape 31 with it is non-
Both metal tapes 32 are bonded to each other spiral winding to form sealing ring 3, after metal tape 31 forms sealing ring 3 with non-metallic 32,
It is fixed spot-welded is carried out in the head end of sealing ring 3 and tail end.In the present embodiment, support ring 1 and locating ring 2 are all made of carbon steel
Material, and carry out zinc-plated processing on the surface of support ring 1 and locating ring 2.Metal tape 31 in sealing ring 3 uses stainless steel
Matter, non-metallic 32 is using one or more in asbestos, graphite, polytetrafluoroethylene (PTFE), ceramic fibre, it is contemplated that preferable resistance to height
Warm high-voltage performance and convenient material drawing and cost problem, non-metallic 32 preferably use asbestos.
The excircle of support ring 1 is equipped with outwardly projecting support fin 4, and the inner periphery of locating ring 2, which is equipped with, to concave
The cross section of sunken locking groove 5, support fin 4 is in the shape of the letter V setting, and the cross section for locking groove 5 is accordingly in the shape of the letter V setting；
It is worth noting that the medium position in 1 excircle of support ring is arranged in support fin 4, locking groove 5 is arranged in locating ring 2
Therefore the medium position of circumference is formed with end face platform 6 in the both sides of support fin 4 on 1 excircle of support ring, locks groove 5
On inner periphery end face platform 6 has been correspondingly formed in the both sides of locking groove 5.
Sealing ring 3 is pressed on by conflict between support ring 1 and locating ring 2, and sealing ring 3, which has to be in the shape of the letter V positioned at middle part, to be set
The bending segment 7 set and it is located at both sides and is connected to the upper flat segments 8 and lower flat segments 9 of bending segment 7, wherein sealing ring
3 are bonded to each other spiral winding by metal tape 31 and non-metallic 32 forms, and accordingly has on metal tape 31 and non-metallic 32 as a result,
There are bending segment 7, upper flat segments 8 and lower flat segments 9, and the bending segment 7 of metal tape 31, upper flat segments 8 and lower flat segments 9 correspond to patch
Together in nonmetallic section of bending segment 7, upper flat segments 8 and lower flat segments 9.It is worth noting that upper flat segments 8 and lower flat segments
9 are parallel to the axial direction of the SW with outside ring.
Bending segment 7 has concave and convex surface, wherein support fin 4 is pushed against in the concave surface of bending segment 7, the convex surface of bending segment 7
Push against in locking groove 5, upper flat segments 8 and lower flat segments 9 be pushed against respectively on the end face platform 6 of 1 excircle of support ring and
On the end face platform 6 of 2 inner periphery of locating ring.The bending segment 7 of the bending segment 7 in sheet metal and non-metal plate fastens layer by layer as a result,
Under and the upper flat segments 8 in sheet metal, the upper flat segments 8 of lower flat segments 9 and non-metal plate, lower flat segments 9 contradict it layer by layer
Under, when the torsion on vertical axial direction occurs for the sealing ring 3, the upper flat segments 8 under mutual conflict and lower 9 energy of flat segments
The concatenation ability between sheet metal and non-metal plate is improved, to effectively prevent the sealing ring 3 to fall apart under impact, vibrations.
As shown in figure 4, bending segment 7 has inflection point 71, top 72 and following 73, the bending angle a of inflection point 71 is
60 °, and it is formed with stress segmental arc in the inflection point of bending segment 7 71；When the upper and lower surface of sealing ring 3 is pressurized, extruding force passes through
After upper flat segments 8, lower flat segments 9 are transferred to top 72 and following 73, extruding force will focus on the inflection point 71 of side bending segment 7
It is upper and concentrate on the top 72 of other side bending segment 7 and the junction of upper flat segments 8, bending segment 7 it is following 73 straight under
Section 9 junction, as a result, the stress segmental arc on inflection point 71 can effectively avoid stress concentration to improve the bending resistance of the bending segment 7
Folding ability and resilience；The extruding force of top 72 and following 73 is by supporting fin 4 to be shared, to effectively improve sealing
The structural strength of ring 3.
Metal tape 31 is located at upper flat segments 8 and is equipped with abutting and is deep in the upper anticreep convex ribs 10 on non-metallic 32, gold
Belong to band 31 to be located at lower flat segments 9 equipped with abutting and be deep in the lower anticreep convex ribs 11 on non-metallic 32, wherein each layer of gold
Belong to and is both provided with anticreep convex ribs 10 and lower anticreep convex ribs 11, the cross section of upper anticreep convex ribs 10 and lower anticreep convex ribs 11 on band 31
Arc-shaped setting, the non-metallic 32 in the present embodiment use asbestos material, and asbestos have certain expansion force and cladding as a result,
Power, above anticreep convex ribs 10 and lower anticreep convex ribs 11 can be deep in asbestos as a result, to improve metal tape 31 and non-metallic
Concatenation ability between 32, to further increase the antitorque of sealing ring 3, bending resistance, anti-ability of falling apart.
The top that the upper flat segments 8 of each metal tape 31 are located at upper anticreep convex ribs 10 is formed with holding tank 12, Mei Gejin
The lower section that the lower flat segments 9 of category band 31 are located at lower anticreep convex ribs 11 is formed with lower holding tank 13, each upper holding tank 12 and lower appearance
It receives and is filled with paraffin 14 in slot 13.According to 14 room temperature cooled and solidified of paraffin, the characteristic of melted by heat, in the SW with outside ring
When on end face of flange, due to the presence of pipeline high temperature and pressure, the pipeline of high temperature conducts heat to the metal wound gasket
In piece, so that paraffin 14 melts, the paraffin 14 after fusing will ooze out into the upper and lower surface of SW with outside ring, with
The purpose that lubricated metal spirotallic gasket is contacted with end face of flange is played, the abrasion of end face of flange is effectively reduced；And paraffin 14 is molten
It will be absorbed by asbestos by a part after change, the asbestos absorbed by paraffin 14 will have a water resisting property, to further improve this
The sealing performance of SW with outside ring, wherein under normal temperature state, paraffin 14 will be recovered to solid, reach recycling
The purpose not being lost in.
The above is only the exemplary embodiment of the present invention, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by the attached claims.
Claims (5)
1. a kind of SW with outside ring, including be arranged inner ring support ring (1), locating ring (2), Yi Jishe in outer ring are set
Set metal tape (31) and the non-metallic (32) between support ring (1) and locating ring (2), metal tape (31) and non-metallic
(32) the two is bonded to each other spiral winding to form sealing ring (3), characterized in that the excircle of the support ring (1) is equipped with
Outwardly projecting support fin (4), the inner periphery of the locating ring (2) is equipped with the locking groove (5) being recessed inwardly, described close
Seal ring (3) have be located at middle part be in the shape of the letter V setting bending segment (7) and be located at both sides and be connected to bending segment (7)
Upper flat segments (8) and lower flat segments (9), the support fin (4) push against in the concave surface of bending segment (7), the bending segment (7)
Convex surface is pushed against in locking groove (5), and the upper flat segments (8) and lower flat segments (9) are pushed against the outer circle of support ring (1) respectively
On the inner periphery of week and locating ring (2)；
The metal tape (31) is located at upper flat segments (8) and is equipped with abutting and is deep in the upper anticreep convex ribs on non-metallic (32)
(10), the metal tape (31), which is located at lower flat segments (9) and is equipped with, pushes against and the lower anticreep that is deep on non-metallic (32) is convex
Muscle (11)；
The upper flat segments (8), which are located above upper anticreep convex ribs (10), is formed with holding tank (12), the lower flat segments (9)
Be formed with lower holding tank (13) below lower anticreep convex ribs (11), the upper holding tank (12) in lower holding tank (13)
Filled with paraffin (14).
2. a kind of SW with outside ring according to claim 1, characterized in that the non-metallic (32) is asbestos, stone
It is one or more in ink, polytetrafluoroethylene (PTFE), ceramic fibre.
3. a kind of SW with outside ring according to claim 1, characterized in that the non-metallic (32) is asbestos.
4. a kind of SW with outside ring according to claim 1, characterized in that the inflection point (71) of the bending segment (7)
Angle a is 60 °.
5. a kind of SW with outside ring according to claim 4, characterized in that the inflection point (71) of the bending segment (7)
It is formed with stress segmental arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123955.XA CN106884985B (en) | 2017-03-03 | 2017-03-03 | A kind of SW with outside ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123955.XA CN106884985B (en) | 2017-03-03 | 2017-03-03 | A kind of SW with outside ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884985A CN106884985A (en) | 2017-06-23 |
| CN106884985B true CN106884985B (en) | 2018-11-09 |
Family
ID=59180584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710123955.XA Expired - Fee Related CN106884985B (en) | 2017-03-03 | 2017-03-03 | A kind of SW with outside ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884985B (en) |
Families Citing this family (6)
| 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 |
| TWI680267B (en) * | 2018-08-06 | 2019-12-21 | 景欣有限公司 | Binding assembly for supporting frame of solar power generation device |
| CN109139912A (en) * | 2018-10-23 | 2019-01-04 | 泰州市国瑞分析仪器厂 | A kind of spirotallic gasket |
| CN109737255B (en) * | 2019-01-25 | 2023-12-19 | 郑州中海威环保科技有限公司 | High-pressure sealing structure for rubber lining pipe fitting |
| CN110773687A (en) * | 2019-10-24 | 2020-02-11 | 江阴市恒润重工股份有限公司 | Forming method of low-temperature-resistant forging for petrochemical industry |
| CN115899056B (en) * | 2022-11-03 | 2024-09-06 | 慈溪市高新密封材料有限公司 | Take stainless steel inner and outer ring wound gasket |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5664791A (en) * | 1995-12-14 | 1997-09-09 | Lamons Metal Gasket Co. | Spiral wound gasket bridged to guide ring |
| CN201250971Y (en) * | 2008-08-25 | 2009-06-03 | 浙江国泰密封材料股份有限公司 | Low pre-tightening force spirotallic gasket |
| JP5478270B2 (en) * | 2010-01-15 | 2014-04-23 | ニチアス株式会社 | Spiral wound gasket |
| CN201884649U (en) * | 2010-11-04 | 2011-06-29 | 洛阳永定密封件有限公司 | Metal spiral wound gasket with double fixing rings |
| CN202056305U (en) * | 2011-05-23 | 2011-11-30 | 慈溪博格曼密封材料有限公司 | Wound gasket |
| CN102644738A (en) * | 2012-04-28 | 2012-08-22 | 南京白云化工环境监测有限公司 | Metal winding gasket |
| CN105090495A (en) * | 2014-05-16 | 2015-11-25 | 自贡鑫剑密封科技有限公司 | Combined wound gasket |
| CN204004395U (en) * | 2014-06-16 | 2014-12-10 | 魏东 | Spiral wound gasket, spiral wound gasket, and sealing configuration |
| CN204942531U (en) * | 2015-08-21 | 2016-01-06 | 宜昌市宏达密封材料有限公司 | A kind of reinforced graphite and metal composite spirotallic gasket |
-
2017
- 2017-03-03 CN CN201710123955.XA patent/CN106884985B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN106884985A (en) | 2017-06-23 |
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