CN106884985A - A kind of SW with outside ring - Google Patents
A kind of SW with outside ring Download PDFInfo
- Publication number
- CN106884985A CN106884985A CN201710123955.XA CN201710123955A CN106884985A CN 106884985 A CN106884985 A CN 106884985A CN 201710123955 A CN201710123955 A CN 201710123955A CN 106884985 A CN106884985 A CN 106884985A
- 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.)
- Granted
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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 drip irrigation device is the support ring for including being arranged on inner ring, it is arranged on the locating ring of outer ring, and it is arranged on metal tape and non-metallic between support ring and locating ring, both metal tape and non-metallic spiral windings bonded to each other are forming sealing ring, the excircle of the support ring is provided with support fin outwardly, the inner periphery of the locating ring is provided with the locking groove for caving inward, the sealing ring has the bending segment of the setting that is in the shape of the letter V positioned at middle part, and be located at both sides and be connected to the upper flat segments and lower flat segments of bending segment, 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 on the inner periphery of the excircle of support ring and locating ring respectively.
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, constituted by a few circle steel bands, inner side 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 property of non-metallic filler band.SW with outside ring exists
Can be used under general condition, under the conditions of thering is stress relaxation, temperature and pressure to have fluctuation, impact and shake
Flange seal.Because SW with outside ring has simple structure, low cost, to medium and the strong adaptability of temperature, pressure-resistant scope
Width, have the advantages that it is multiple-sealed, compared with other gasket seals, with more obvious advantage, thus at present it is big
In measuring the pressure vessels and pipes structure for HTHP.SW with outside ring as a kind of potted component of function admirable,
In a short time, it is extensive in field of industrial production such as oil, chemical industry, metallurgy, generating, coal, machinery, shipbuilding, nuclear industry
Popularization and application.
Because SW with outside ring belongs to complex superposition type structure, the mechanical performance such as its antitorque, bending resistance and shearing resistance has bright
Aobvious free property, and differ greatly, destruction is just easy in the weakness such as thickness direction and vertical axial direction, especially in metal
When the diameter of spirotallic gasket reaches 2 meters to more than 3 meters, the spoilage of SW with outside ring is higher, in transport and installation, if
Receive impact or shake the phenomenon excessive, the steel band in the SW with outside ring will be caused to fall apart.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of SW with outside ring, with being difficult
The characteristics of falling apart.
Above-mentioned technical purpose of the invention technical scheme is that：
A kind of SW with outside ring, including be arranged on the support ring of inner ring, be arranged on the locating ring of outer ring and be arranged on support
Metal tape and non-metallic between ring and locating ring, metal tape are close to be formed with both non-metallics spiral winding bonded to each other
Seal ring, the excircle of the support ring is provided with support fin outwardly, and the inner periphery of the locating ring is provided with inwardly
The locking groove of depression, the sealing ring have positioned at middle part be in the shape of the letter V setting bending segment and connect positioned at both sides and respectively
Be connected to the upper flat segments and lower flat segments of bending segment, the support fin is pushed against in the concave surface of bending segment, the bending segment it is convex
Face is pushed against in locking groove, and the upper flat segments and lower flat segments are pushed against in the excircle and locating ring of support ring respectively
On circumference.
By above-mentioned technical proposal, 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 stop of the excircle or locating ring inner periphery of support ring, sealing is caused effectively to prevent sealing ring overflexing
Arching upward in the middle part of ring, and when sealing ring bears axially vertical vibrations or impact, the bigger upper flat segments of contact area and
Frictional force between lower flat segments is more sufficient, is prevented effectively from the problem that sealing ring falls apart.
Preferably, the non-metallic is one or more in asbestos, graphite, polytetrafluoroethylene (PTFE), ceramic fibre.
By above-mentioned technical proposal, what is be made for one or more in asbestos, graphite, polytetrafluoroethylene (PTFE), ceramic fibre is non-
Metal tape can effectively improve the sealing property of the sealing ring.
Preferably, the non-metallic is asbestos.
Preferably, the metal tape is provided with abutting positioned at upper flat segments and to be deep in the upper anticreep on non-metallic convex
Muscle, the metal tape is provided with abutting and is deep in the lower anticreep convex tendon on non-metallic positioned at lower flat segments.
By above-mentioned technical proposal, upper anticreep convex tendon and lower anticreep convex tendon are deep in non-metallic, and this non-metallic
During using asbestos, because asbestos have certain elasticity and encapsulation, so that the connection between metal tape and non-metallic
Compactness is stronger, and slip is produced between metal tape and non-metallic to be prevented effectively from, and causes falling apart for sealing ring.
Preferably, the upper flat segments are located above upper anticreep convex tendon and are formed with holding tank, it is described under straight section
Paraffin is filled with the formed below lower holding tank of lower anticreep convex tendon, the upper holding tank and lower holding tank.
By above-mentioned technical proposal, due to upper flat segments and the setting of 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
Touch, the aggravation that end face of flange will be caused to wear and tear；Therefore, when the SW with outside ring is installed between the flanges, because pipeline is high
The presence of warm high pressure, the pipeline of high temperature is conducted 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 will be absorbed by asbestos by a part after melted paraffin wax, be absorbed by paraffin
Asbestos will have a water resisting property, so as to further increase the sealing performance of the SW with outside ring, wherein, in normal temperature shape
Under state, paraffin will be recovered to solid, reach the purpose for recycling and not being 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.
By above-mentioned technical proposal, the bending angle a of bending segment is 60 °, is now pressurized on the upper and lower surface of sealing ring
When, after upper flat segments, lower flat segments are transferred to bending segment, extruding force concentrates the curved of bending segment side at one end to extruding force
On break and the both sides and upper flat segments and the junction of lower flat segments of bending segment opposite side are concentrated on, thus, on inflection point
Stress segmental arc stress concentration can be prevented effectively to improve the bend resistance ability and resilience of the bending segment.
In sum, having the beneficial effect that in contrast to prior art of the invention：
When the SW with outside ring bears the torsion on vertical axial direction, upper flat segments and lower flat segments in sealing ring
Can mutually contradict and directly be pushed against on the inner periphery of the excircle of support ring or locating ring, by the excircle of support ring or
The stop of locating ring inner periphery, arching upward in the middle part of sealing ring is caused effectively to prevent sealing ring overflexing, and in sealing
When ring bears axially vertical vibrations or impact, the frictional force between the bigger upper flat segments of contact area and lower flat segments is more
Foot, is prevented effectively from the problem that sealing ring falls apart.
Brief description of the drawings
Fig. 1 is the front view of embodiment；
Fig. 2 is the sectional view of embodiment；
Fig. 3 is support ring, locating ring, the scheme of installation of sealing ring；
Fig. 4 is the structural representation of sealing ring.
Reference：1st, support ring；2nd, locating ring；3rd, sealing ring；31st, metal tape；32nd, non-metallic；4th, fin is supported；
5th, groove is locked；6th, end face platform；7th, bending segment；71st, inflection point；72nd, top；73rd, it is following；8th, upper flat segments；9th, it is straight under
Section；10th, upper anticreep convex tendon；11st, lower anticreep convex tendon；12nd, upper holding tank；13rd, lower holding tank；14th, paraffin.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
A kind of SW with outside ring with reference to shown in Fig. 1, Fig. 2 and Fig. 3, including be arranged on the support ring 1 of inner ring, set outside
The locating ring 2 of circle and the metal tape 31 and non-metallic 32 that are arranged between support ring 1 and locating ring 2, metal tape 31 with it is non-
Both spiral windings bonded to each other of metal tape 32 to form sealing ring 3, after metal tape 31 forms sealing ring 3 with non-metallic 32,
Fixed spot-welded is carried out in the head end and tail end of sealing ring 3.In the present embodiment, support ring 1 and locating ring 2 use carbon steel
Material, and carry out zinc-plated treatment 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 Problems, non-metallic 32 preferably use asbestos.
The excircle of support ring 1 is provided with support fin 4 outwardly, and the inner periphery of locating ring 2 is provided with and concaves
Sunken locking groove 5, supports the cross section of fin 4 to be in the shape of the letter V settings, and the cross section of locking groove 5 is accordingly in the shape of the letter V setting；
What deserves to be explained is, support fin 4 is arranged on the medium position of the excircle of support ring 1, and locking groove 5 is arranged in locating ring 2
The medium position of circumference, therefore, end face platform 6 is formed with the both sides of support fin 4 on the excircle of support ring 1, lock 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 between support ring 1 and locating ring 2 by conflict, and sealing ring 3 sets with being in the shape of the letter V positioned at middle part
The bending segment 7 put 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 formed by metal tape 31 and the spiral winding bonded to each other of non-metallic 32, thus, are accordingly had on metal tape 31 and non-metallic 32
There are bending segment 7, upper flat segments 8 and a lower flat segments 9, and the bending segment 7 of metal tape 31, upper flat segments 8 and lower flat segments 9 correspondence are pasted
On bending segment 7, upper flat segments 8 and lower flat segments 9 together in nonmetallic section.What deserves to be explained is, upper flat segments 8 and lower flat segments
9 parallel to the SW with outside ring axial direction.
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 the excircle of support ring 1 and
On the end face platform 6 of the inner periphery of locating ring 2.Thus, the bending segment 7 in sheet metal is fastened layer by layer with the bending segment 7 of non-metal plate
Under and sheet metal in upper flat segments 8, 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 there is the torsion on vertical axial direction in the sealing ring 3, upper flat segments 8 and the lower energy of flat segments 9 mutually under conflict
The concatenation ability between sheet metal and non-metal plate is improved, effectively to prevent the sealing ring 3 from being fallen 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 71 of bending segment 7；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 opposite side bending segment 7 and the junction of upper flat segments 8, bending segment 7 it is following 73 straight with
The junction of section 9, thus, the stress segmental arc on inflection point 71 can be prevented effectively from stress concentration to improve the bending resistance of the bending segment 7
Folding ability and resilience；Top 72 and following 73 extruding force are shared by supporting fin 4, to effectively improve sealing
The structural strength of ring 3.
Metal tape 31 is provided with abutting and is deep in the upper anticreep convex tendon 10 on non-metallic 32 positioned at upper flat segments 8, gold
Category is provided with abutting and is deep in the lower anticreep convex tendon 11 on non-metallic 32 with 31 positioned at lower flat segments 9, wherein, each layer of gold
The cross section of anticreep convex tendon 10 and lower anticreep convex tendon 11, upper anticreep convex tendon 10 and lower anticreep convex tendon 11 is provided with category band 31
Curved setting, the non-metallic 32 in the present embodiment uses asbestos material, and thus, asbestos have certain expansion force with cladding
Power, thus, upper anticreep convex tendon 10 and lower anticreep convex tendon 11 can be deep in asbestos, to improve metal tape 31 and non-metallic
Concatenation ability between 32, further to improve 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 tendon 10 is formed with holding tank 12, each gold
Belong to the formed below lower holding tank 13 that lower anticreep convex tendon 11 is located at 31 lower flat segments 9, holding tank 12 and lower appearance on each
Receive and paraffin 14 is filled with groove 13.According to the normal temperature cooled and solidified of paraffin 14, the characteristic of melted by heat, in the SW with outside ring
When on end face of flange, due to the presence of pipeline HTHP, 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 melts
To be absorbed by asbestos by a part after change, the asbestos absorbed by paraffin 14 will have a water resisting property, so as to further increase 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 exemplary embodiment of the invention, not for limiting the scope of the invention, this hair
Bright protection domain is determined by appended claim.
Claims (7)
1. a kind of SW with outside ring, including be arranged on the support ring (1) of inner ring, be arranged on locating ring (2), the Yi Jishe of outer ring
Put metal tape (31) and the non-metallic (32) between support ring (1) and locating ring (2), metal tape (31) and non-metallic
Both (32) spiral winding bonded to each other to be to form sealing ring (3), it is characterized in that, the excircle of the support ring (1) is provided with
Support fin (4) outwardly, the inner periphery of the locating ring (2) is provided with the locking groove (5) for caving inward, described close
Seal ring (3) with positioned 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), support fin (4) are pushed 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 cylindrical of support ring (1) respectively
On the inner periphery of week and locating ring (2).
2. a kind of SW with outside ring according to claim 1, it is characterized in that, the non-metallic (32) is asbestos, stone
One or more in ink, polytetrafluoroethylene (PTFE), ceramic fibre.
3. a kind of SW with outside ring according to claim 1, it is characterized in that, the non-metallic (32) is asbestos.
4. a kind of SW with outside ring according to claim 3, it is characterized in that, the metal tape (31) is positioned at upper flat segments
(8) it is provided with abutting and is deep in the upper anticreep convex tendon (10) on non-metallic (32), the metal tape (31) is located at down straight
Section (9) is provided with abutting and is deep in the lower anticreep convex tendon (11) on non-metallic (32).
5. a kind of SW with outside ring according to claim 4, it is characterized in that, the upper flat segments (8) are positioned at upper anticreep
Holding tank (12) is formed with above convex tendon (10), the lower flat segments (9) are positioned at the formed below of lower anticreep convex tendon (11)
There is lower holding tank (13), paraffin (14) is filled with the upper holding tank (12) and lower holding tank (13).
6. a kind of SW with outside ring according to claim 1, it is characterized in that, the inflection point (71) of the bending segment (7)
Angle a is 60 °.
7. a kind of SW with outside ring according to claim 6, it is 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 true CN106884985A (en) | 2017-06-23 |
| CN106884985B CN106884985B (en) | 2018-11-09 |
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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) |
Cited By (5)
| 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 |
| CN109139912A (en) * | 2018-10-23 | 2019-01-04 | 泰州市国瑞分析仪器厂 | A kind of spirotallic gasket |
| CN109737255A (en) * | 2019-01-25 | 2019-05-10 | 郑州中海威环保科技有限公司 | A kind of rubber lining pipe fitting high pressure seal structure |
| TWI680267B (en) * | 2018-08-06 | 2019-12-21 | 景欣有限公司 | Binding assembly for supporting frame of solar power generation device |
| 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 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Cited By (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 |
| CN109737255A (en) * | 2019-01-25 | 2019-05-10 | 郑州中海威环保科技有限公司 | A kind of rubber lining pipe fitting high pressure seal structure |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106884985B (en) | 2018-11-09 |
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