CN106499891A - Sealing ring and negative-pressure pipeline - Google Patents
Sealing ring and negative-pressure pipeline Download PDFInfo
- Publication number
- CN106499891A CN106499891A CN201611105091.0A CN201611105091A CN106499891A CN 106499891 A CN106499891 A CN 106499891A CN 201611105091 A CN201611105091 A CN 201611105091A CN 106499891 A CN106499891 A CN 106499891A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- annular seal
- sealing
- annular
- main body
- 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
Links
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
- 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
-
- 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
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
Abstract
The invention provides a kind of sealing ring and negative-pressure pipeline, sealing circle comprises sealing ring main body, sealing ring main body is the tubular of both ends open, and on the lateral surface of sealing ring main body, has annular seal frame and at least two soft annular seal portions between the ring flange end face that can be folded in two pipelines; At least two annular seal portions are separately positioned on the both sides of annular seal frame, annular seal portion stretches out to annular seal frame inclining, the inner edge of annular seal portion is connected with the lateral surface of sealing ring main body, the outer rim of annular seal portion can be connected on the inwall of pipeline under suction function, and being tightly connected with inner-walls of duct. sealing circle has increased multi-stage sealed effect on the basis of conventional seals circle, make full use of the effect of pipe interior medium negative pressure to sealing ring, realized the sealing effectiveness of sealing ring at pipe interior.
Description
Technical field
The present invention relates to sealing ring and negative-pressure pipeline, relate in particular to a kind of negative-pressure dense seal and negative-pressure pipeline.
Background technology
Pipeline delivery application is comparatively extensive at present, seal for pipe joints technology becomes the important topic of pipe safety in carrying, while particularly carrying the higher medium of some purity requirements, poorly sealed, external substance will, by high negative pressure in pipeline " suction " pipeline, affect pipeline internal medium purity.
In prior art, conventional conduit seals is generally O RunddichtringO, O RunddichtringO is a kind of elastic circular device, O RunddichtringO is arranged between two pipe interface flange dishes, by tightening the bolt that connects two ring flanges, thereby make the stressed extruding of pipeline both sides ring flange O RunddichtringO play sealing effectiveness.
If but both sides ring flange unbalance stress or impaired distortion all can cause poorly sealed situation, particularly when in pipeline during in high negative pressure, external substance is easy to by " suction " pipeline, reduce pipeline internal medium concentration, serious also likely with pipeline pumped (conveying) medium generation chemical reaction, change the medium composition accident such as even blast.
Summary of the invention
The invention provides a kind of sealing ring and negative-pressure pipeline, sealing circle has increased secondary seal effect on the basis of conventional seals circle, makes full use of the effect of pipe interior medium negative pressure to sealing ring, has realized the sealing effectiveness of sealing ring at pipe interior.
First aspect the invention provides a kind of sealing ring, and sealing circle comprises sealing ring main body, and sealing ring main body is two ends The tubular of opening, and it is close on the lateral surface of sealing ring main body, to have ring-type between the ring flange end face that can be folded in two pipelines Envelope frame and at least two soft annular seal portions;
At least two annular seal portions are separately positioned on the both sides of annular seal frame, annular seal portion stretches out to annular seal frame inclining, the inner edge of annular seal portion is connected with the lateral surface of sealing ring main body, the outer rim of annular seal portion can be connected on the inwall of pipeline under suction function, and is tightly connected with inner-walls of duct.
Optionally, the quantity of annular seal portion is at least four, and annular seal portion is symmetricly set on the both sides of annular seal frame between two.
Further, rounding off between annular seal portion and sealing ring main body.
Further, the side away from annular seal frame of annular seal portion is cambered surface.
Further, sealing ring main body, annular seal frame and annular seal portion are integral type structure.
Further, sealing ring is rubber parts.
Further, sealing circle also comprises: the retainer plate of rigidity, retainer plate coupling is arranged on the end face of ring-type of sealing ring main body.
Further, retainer plate is two, and two retainer plates are separately fixed at the two ends of sealing ring main body.
Further, on annular seal frame, offer the through hole that can pass for connection securing member, wherein, connect securing member and be used for connecting two pipelines.
Second aspect the present invention also provides a kind of negative-pressure pipeline, this negative-pressure pipeline comprises two pipelines and sealing ring, sealing Circle be connected between the end of two pipelines, between and the annular seal frame of sealing ring be folded in two pipelines flange side surface it.
The sealing ring that the present invention is provided includes sealing ring main body, tubular of the sealing ring main body for both ends open, and sealing ring On the lateral surface of main body, have annular seal frame between the ring flange end face that can be folded in two pipelines and at least two soft Annular seal portion; At least two annular sealing portion are arranged on the both sides of annular seal frame respectively, and annular sealing portion is close to ring-type Envelope frame inclining stretches out, and the inner edge of annular seal portion is connected with the lateral surface of sealing ring main body, and the outer rim of annular seal portion can be negative Under pressure effect, being connected on the inwall of pipeline, and being tightly connected with inner-walls of duct. sealing circle is on the basis of conventional seals circle Increase multi-stage sealed effect, made full use of the effect of pipe interior medium negative pressure to sealing ring, realized sealing ring at pipeline Inner sealing effectiveness.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below. apparently, accompanying drawing in the following describes is some embodiments of the present invention, to those skilled in the art, do not paying under the prerequisite of creative work, can also Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the axial, cross-sectional view of sealing ring of the present invention and negative-pressure pipeline;
Fig. 2 is the radial view of sealing ring of the present invention.
Specific embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer; below in conjunction with the accompanying drawing in the embodiment of the present invention; technical scheme in the embodiment of the present invention is clearly and completely described; obviously; described embodiment is the present invention's part embodiment; instead of whole embodiment. based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the axial, cross-sectional view of sealing ring embodiment of the present invention, as shown in figure 1, the sealing ring bag that the present embodiment is provided draw together sealing ring main body 6, the tubular that sealing ring main body 6 is both ends open, and have and can be folded on the lateral surface of sealing ring main body 6 the ring flange 51 of two pipelines, annular seal frame 4 between 52 end faces, at least two soft annular seal portions, this sentences four annular seal portions 21, 22, 23, 24 describe .Four annular sealing portion 21 for example, 22 and 23, 24 are separately positioned on ring The both sides of shape sealing frame 4, annular sealing portion 21, 22, 23, 24 is inclined to annular seal frame 4 stretches out, annular sealing portion 21, 22, 23rd, 24 inner edge is connected with the lateral surface of sealing ring main body 6, and the outer rim of annular sealing portion 21, 22, 23, 24 can be in suction function Under be connected on the inwall 1 of pipeline, and be tightly connected with inner-walls of duct 1.
Wherein, illustrate by taking 4 side of sealing frame as an example, sealing frame 4 is folded between two ring flanges 51 and 52, prevent
The outer gas of pipeline enters pipeline by gap between ring flange, defines first order sealing effectiveness, when ring flange deforms or method
When blue chuck clamping is uneven, the outer gases at high pressure of pipeline enter 4 shape of annular sealing portion 21 and sealing frame by gap between ring flange
Into insulating space in, and extrude annular seal 21 so that annular seal 21 fit with inner-walls of duct 1 even closer, prevent
The outer gas of pipeline is entered in pipeline, so as to form second level sealing effectiveness, when annular seal 21 weares and teares or during pipe deforming,
The outer gases at high pressure of pipeline are entered in the insulating space that annular seal 22 is formed with annular sealing portion 21, and extrude annular seal
22 that annular seal 22 is fitted with inner-walls of duct 1 is even closer, prevents in the outer gas entrance pipeline of pipeline, so as to form the
Three-level sealing effectiveness.
Optionally, the Position Design that annular sealing portion can be easily deformed according to pipeline in actual conditions is different in pipeline
Position, while annular sealing portion can be designed as two, it is also possible to be designed as multiple, annular sealing portion is more, can be formed
More multi-sealed protection, improves the sealing effectiveness of negative-pressure pipeline.
Specifically, rounding off, such as annular sealing portion between annular sealing portion 21,22,23,24 and sealing ring main body 6
21st, there is chamfering or fillet in the junction between 22,23,24 and sealing ring main body 6.Because annular sealing portion 21,22,23
Regular generation relative movement and 24 and sealing ring main body 6 between and bending, thus junction easily produces stress and excessively collects
In, and it is susceptible to fatigue phenomenon.Rounding off between annular sealing portion 21,22,23,24 and sealing ring main body 6 is made, can be kept away
When exempting from pipeline external gases at high pressure extruding annular sealing portion 21,22,23,24, annular sealing portion 21,22,23,24 and sealing ring master
Body 6 ruptures in junction stress concentration or fatigue phenomenon.
Specifically, the side away from annular seal frame of annular sealing portion 21,22,23,24 be cambered surface, annular sealing portion
21st, 22,23,24 side away from annular seal frame is annular sealing portion 21,22,23,24 and 1 contact surface of inner-walls of duct, will
The side away from annular seal frame of annular sealing portion 21,22,23,24 is designed as cambered surface, the folder that cambered surface is formed with inner-walls of duct 1
Angle is less, and at outer gases at high pressure extruding annular sealing portion 21,22,23,24 of pipeline, cambered surface is easier to fit to inner-walls of duct 1
On, the fitting area of annular sealing portion 21,22,23,24 and inner-walls of duct 1 is increased, sealing intensity is improve, and is solved
In annular sealing portion 21,22,23,24 and the less problem easy to wear of the fitting area of inner-walls of duct 1.
Specifically, sealing ring main body 6, annular sealing portion 21,22,23,24 and annular seal frame 4 are integral type structure,
Due to sealing ring small volume, the operable limited space of connection is installed, by sealing ring main body 6, annular sealing portion between each part
21st, 22,23,24 and annular seal frame 4 be designed as integral structure, both avoided install connection operation, prevent peace again
The space that dress is not closely caused, so as to improve the sealing effectiveness of sealing ring, while integral structure causes sealing ring overall strong
Degree more preferably, is hardly damaged.
Optionally, sealing ring can adopt elastomeric material, and elastomeric material is the strong flexible polymer material of reversible deformation, rich
Flexible, can produce compared with large deformation under the external force effect of very little, remove resilient after external force, sealing ring adopts rubber material
Material can make annular sealing portion 21,22,23,24 and the deformation of annular seal frame 4 be fitted in sealing position, in the bullet of elastomeric material
Property effect under make laminating position sealing effectiveness more preferable.
Specifically, sealing ring can also include rigidly fixing circle, and retainer plate is arranged on the end face of sealing ring main body 6, excellent
Choosing, retainer plate can be 3 be arranged on 6 two ends of sealing ring main body, in order to avoid the outer gas pressure of pipeline under, sealing ring master
Body diametrically deforms, and affects sealing effectiveness, arranges in 6 both sides of sealing ring main body and rigidly fixes circle 3 so that sealing ring master
Body 6 is diametrically more consolidated, and optional sealing ring main body 6 can arrange multiple retainer plates in the axial direction.
Specifically, annular seal frame 4 is provided with the through hole for being available for securing member is connected to be fed through, and wherein securing member is connected is use
In two pipelines are connected, optionally, as shown in Fig. 2 annular seal frame 4 can be arranged on annular circumference and pipe head flange
On disk 51,52, corresponding four through holes are corresponding, it should be noted that flange plate bolt hole number is according to different pipe diameters
Select, number of openings of the annular seal frame 4 on annular circumference and position are corresponding with through hole on ring flange, using bolt 7
Two ring flanges 51 and 52 and the annular seal frame 4 being clipped in the middle of ring flange are stepped up in the axial direction, on 4 circumference of annular seal frame
Sealing ring radially can be positioned by the setting of through hole in pipeline, it is to avoid sealing ring is shifted, and the setting of through hole is also convenient for
The installation of sealing ring, it is ensured that sealing ring is in the center of pipeline so that the sealing of annular sealing portion circumferentially all directions
Best results.
The sealing ring that the present embodiment is provided includes sealing ring main body 6, tubular of the sealing ring main body 6 for both ends open, and close
There is on the lateral surface of seal main body 64 and of annular seal frame that can be folded between the ring flange 51 of two pipelines, 52 end faces
Four soft annular sealing portion 21,22,23,24；Four annular sealing portion 21,22,23,24 are separately positioned on annular seal frame
4 both sides, annular sealing portion 21,22,23,24 to annular seal frame 4 incline stretches out, annular sealing portion 21,22,23,24 interior
Edge is connected with the lateral surface of sealing ring main body 6, and the outer rim of annular sealing portion 21,22,23,24 can be connected to pipe under suction function
On the inwall 1 in road, and it is tightly connected with inner-walls of duct 1.The sealing ring increased multi-stage sealed on the basis of conventional seals circle
Effect, makes full use of effect of the pipeline interior media negative pressure to sealing ring, it is achieved that sealing effectiveness of the sealing ring inside pipeline.
The present invention also provides a kind of negative-pressure pipeline, and the pipeline external pressure is more than internal pipe pressure, the negative-pressure pipeline bag
Two pipelines and sealing ring is included, sealing ring is connected between two pipelines, and the annular seal frame of sealing ring is folded in two pipelines
Flange side surface between, wherein, the concrete structure of sealing ring, function and operation principle are carried out in the aforementioned embodiment
Describe in detail, here is omitted.
Multistage seal isolation space is defined using the negative-pressure pipeline connection sealing station of above-mentioned sealing ring, multi-stage sealed
Structure collective effect, defines multi-stage sealed technique effect, even if under pipeline flanges discontinuity or deformation,
Good sealing effectiveness can also be reached.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of sealing ring, for being sealed in the end junction of two pipelines, it is characterised in that including sealing ring main body, institute
State sealing ring main body be both ends open tubular, and on the lateral surface of the sealing ring main body have can be folded in two pipes
Annular seal frame and at least two soft annular sealing portion between the flange side surface in road；
At least two annular sealing portion is arranged on the both sides of the annular seal frame respectively, and the annular sealing portion is to described
Annular seal frame inclining stretches out, and the inner edge of the annular sealing portion is connected with the lateral surface of the sealing ring main body, the ring-type
The outer rim of sealing can be connected on the inwall of the pipeline under suction function, and is tightly connected with the inner-walls of duct.
2. sealing ring according to claim 1, it is characterised in that the quantity of the annular sealing portion is at least four, and
The annular sealing portion is symmetricly set on the both sides of the annular seal frame two-by-two.
3. sealing ring according to claim 2, it is characterised in that between the annular sealing portion and the sealing ring main body
Rounding off.
4. sealing ring according to claim 3, it is characterised in that the annular sealing portion away from the annular seal frame
Side be cambered surface.
5. the sealing ring according to any one of claim 1-4, it is characterised in that the sealing ring main body, the ring-type are close
Envelope frame and the annular sealing portion are integral type structure.
6. sealing ring according to claim 5, it is characterised in that the sealing ring is rubber parts.
7. the sealing ring according to any one of claim 1-4, it is characterised in that also include：The retainer plate of rigidity, described solid
On the end face of the ring-type that fixed circle coupling is arranged on the sealing ring main body.
8. sealing ring according to claim 7, it is characterised in that the retainer plate is two, and two retainer plates
It is separately fixed at the two ends of the sealing ring main body.
9. the sealing ring according to any one of claim 1-4, it is characterised in that offer on the annular seal frame and be available for
The through hole that securing member is connected is passed through, wherein, the securing member is connected is used for connecting two pipelines.
10. a kind of negative-pressure pipeline, it is characterised in that including two pipelines and the sealing ring as described in any one of claim 1-9,
The sealing ring is connected between the end of two pipelines, and the annular seal frame of the sealing ring is folded in two institutes
State between the flange side surface of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105091.0A CN106499891B (en) | 2016-12-05 | 2016-12-05 | Sealing ring and negative-pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105091.0A CN106499891B (en) | 2016-12-05 | 2016-12-05 | Sealing ring and negative-pressure pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106499891A true CN106499891A (en) | 2017-03-15 |
| CN106499891B CN106499891B (en) | 2018-05-18 |
Family
ID=58329312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611105091.0A Active CN106499891B (en) | 2016-12-05 | 2016-12-05 | Sealing ring and negative-pressure pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106499891B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020030326A1 (en) * | 1997-12-05 | 2002-03-14 | Alan C. Bettencourt | "flame resistant pipe flange gasket" |
| CN102494133A (en) * | 2011-11-29 | 2012-06-13 | 济南轨道交通装备有限责任公司 | Seal ring |
| WO2013148025A1 (en) * | 2012-03-26 | 2013-10-03 | Lamons Gasket Company | Flange gasket |
| CN203927154U (en) * | 2014-06-13 | 2014-11-05 | 洛阳涧光石化设备有限公司 | The flange-type dynamic sealing assembly that hydraulic decoking equipment is used |
| CN205745692U (en) * | 2015-11-17 | 2016-11-30 | 辽宁铭阳管业股份有限公司 | A kind of two ends are with the corrugated tube of Flange |
-
2016
- 2016-12-05 CN CN201611105091.0A patent/CN106499891B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020030326A1 (en) * | 1997-12-05 | 2002-03-14 | Alan C. Bettencourt | "flame resistant pipe flange gasket" |
| CN102494133A (en) * | 2011-11-29 | 2012-06-13 | 济南轨道交通装备有限责任公司 | Seal ring |
| WO2013148025A1 (en) * | 2012-03-26 | 2013-10-03 | Lamons Gasket Company | Flange gasket |
| CN203927154U (en) * | 2014-06-13 | 2014-11-05 | 洛阳涧光石化设备有限公司 | The flange-type dynamic sealing assembly that hydraulic decoking equipment is used |
| CN205745692U (en) * | 2015-11-17 | 2016-11-30 | 辽宁铭阳管业股份有限公司 | A kind of two ends are with the corrugated tube of Flange |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106499891B (en) | 2018-05-18 |
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