CN203273090U - Dual-seal structure petroleum pipe - Google Patents
Dual-seal structure petroleum pipe Download PDFInfo
- Publication number
- CN203273090U CN203273090U CN 201320315221 CN201320315221U CN203273090U CN 203273090 U CN203273090 U CN 203273090U CN 201320315221 CN201320315221 CN 201320315221 CN 201320315221 U CN201320315221 U CN 201320315221U CN 203273090 U CN203273090 U CN 203273090U
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- Prior art keywords
- inner conical
- conical surface
- petroleum pipeline
- annular
- shaped sealing
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Abstract
The utility model discloses a dual-seal structure petroleum pipe which comprises a body. Connectors of the two ends of the body are respectively provided with an inner conical surface, wherein the inner conical surfaces are identical in taper and length, and the surface of each inner conical surface is smooth. Each inner conical surface is provided with an annular sealing groove and an annular step surface, wherein the annular step surface is located outside the annular sealing groove, an O-shaped sealing ring is installed in the annular sealing groove, the section of the O-shaped sealing ring is elliptical, and a band-shaped sealing ring is arranged on the annular step surface. According to the dual-seal structure petroleum pipe, the dual seal function is achieved through the O-shaped sealing rings and the band-shaped sealing rings. Due to the fact that each annular sealing groove is perpendicular to one inner conical surface, when each O-shaped sealing ring is pressed and compressed, the direction of restoring force generated by each O-shaped sealing ring is perpendicular to the inner conical surface. Therefore, the better sealing effect can be achieved. The band-shaped sealing rings have the advantages that assembly and disassembly are convenient, the contact area due to the band-shaped structure is large, and the sealing effect is good.
Description
Technical field
The utility model relates to a kind of double sealing structure petroleum pipeline, belongs to the petroleum pipeline technical field.
Background technique
Adopt the petroleum pipeline transfer oil, cost is low, the medium tache waste is few, but to having relatively high expectations of pipeline and pipe joint, so in order to guarantee the stability of petroleum pipeline transfer oil, seal request, structural strength to pipe joint require just to become the important technological problems that a lot of pipe production business need to solve, and this solution of problem directly has influence on the major areas that oil reserve, oil transportation etc. are related to national economy.So for guarantee oil transportation safe, reduce the wasting phenomena in course of conveying, the claimant designs the petroleum pipeline interface device of a kind of good stability, good airproof performance, and has applied on the same day a kind of cone-shaped interface petroleum pipeline in the application.But the friction surface structure of this petroleum pipeline structure, although can guarantee good sealing, but design cost is also higher, can only be applicable to the Environmental Conditions that minority is had relatively high expectations to sealing, stability, stress equilibrium, field for common technical requirements, user cost is too high, thus be necessary this application is improved accordingly, so that it is applicable to the Environmental Conditions not high to technical requirements.
The model utility content
In order to solve the technical problem of petroleum pipeline sealing joint, and the problem of petroleum pipeline interface structure stability, the utility model provides a kind of double sealing structure petroleum pipeline.
The purpose of this utility model is come specific implementation by the following technical programs:
A kind of double sealing structure petroleum pipeline, comprise body, the two ends interface position of body is respectively equipped with tapering inner conical surface identical, equal in length, the surface of described inner conical surface is smooth surface, be provided with an annular seal groove and an annular table terrace on each described inner conical surface, described annular table terrace is positioned at the outside of described annular seal groove, an O-ring seals is installed in described annular seal groove, the cross section ovalize of described O-ring seals, described annular table terrace is provided with a banded seal ring.
The outside opening place of described banded seal ring is made as inner conical surface.
The cross section of described annular seal groove is rectangular, and vertical with described inner conical surface.
Described inner conical surface is the 3-5 degree with respect to the angle of the cone angle in body axle center.
The two ends of described body respectively are provided with outside thread.
A kind of double sealing structure petroleum pipeline described in the utility model adopts O-ring seals and banded seal ring to realize dual sealing functions; Described annular seal groove is vertical with described inner conical surface, and after can making described O-ring seals be forced to compression, the perpendicular direction of the restoring force of generation can reach better sealing effect like this in described inner conical surface; The effect of described banded seal ring is that installation and removal are convenient, and the area of contact of banded structure is larger, and sealing effect is also better.
Description of drawings
The below is described in further detail the utility model according to drawings and embodiments.
Fig. 1 is a kind of structural drawing of double sealing structure petroleum pipeline.
In figure: 1, body; 2, inner conical surface; 3, outside thread; 41, annular seal groove; 42, annular table terrace; 51, O-ring seals; 52, banded seal ring.
Embodiment
as shown in Figure 1, the described a kind of double sealing structure petroleum pipeline of the utility model embodiment, comprise body 1, it is identical that the two ends interface position of body 1 is respectively equipped with tapering, inner conical surface 2 equal in length, the surface of described inner conical surface 2 is smooth surface, be provided with an annular seal groove 41 and an annular table terrace 42 on each described inner conical surface 2, described annular table terrace 42 is positioned at the outside of described annular seal groove 41, an O-ring seals 51 is installed in described annular seal groove 41, the cross section ovalize of described O-ring seals 51, described annular table terrace 42 is provided with a banded seal ring 52.
The outside opening place of described banded seal ring 52 is made as inner conical surface.
The cross section of described annular seal groove 41 is rectangular, and vertical with described inner conical surface.
Described inner conical surface 2 is the 3-5 degree with respect to the angle of the cone angle in body 1 axle center.
The two ends of described body 1 respectively are provided with outside thread 3.
A kind of double sealing structure petroleum pipeline described in the utility model adopts O-ring seals and banded seal ring to realize dual sealing functions; Described annular seal groove is vertical with described inner conical surface, and after can making described O-ring seals be forced to compression, the perpendicular direction of the restoring force of generation can reach better sealing effect like this in described inner conical surface; The effect of described banded seal ring is that installation and removal are convenient, and the area of contact of banded structure is larger, and sealing effect is also better.
It is to be noted; design of the present utility model is not limited only to above embodiment; any further improvement and distortion on the utility model design basis; the protection domain that all should belong to the utility model design; anyone permits without the obligee, all can not arbitrarily implement the design proposal of this patent.
Claims (5)
1. double sealing structure petroleum pipeline, comprise body, it is characterized in that, the two ends interface position of body is respectively equipped with tapering inner conical surface identical, equal in length, the surface of described inner conical surface is smooth surface, be provided with an annular seal groove and an annular table terrace on each described inner conical surface, described annular table terrace is positioned at the outside of described annular seal groove, an O-ring seals is installed in described annular seal groove, the cross section ovalize of described O-ring seals, described annular table terrace is provided with a banded seal ring.
2. a kind of double sealing structure petroleum pipeline as claimed in claim 1, is characterized in that, the outside opening place of described banded seal ring is made as inner conical surface.
3. a kind of double sealing structure petroleum pipeline as claimed in claim 1, is characterized in that, the cross section of described annular seal groove is rectangular, and vertical with described inner conical surface.
4. a kind of double sealing structure petroleum pipeline as claimed in claim 1, is characterized in that, described inner conical surface is the 3-5 degree with respect to the angle of the cone angle in body axle center.
5. a kind of double sealing structure petroleum pipeline as claimed in claim 1, is characterized in that, the two ends of described body respectively are provided with outside thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320315221 CN203273090U (en) | 2013-06-04 | 2013-06-04 | Dual-seal structure petroleum pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320315221 CN203273090U (en) | 2013-06-04 | 2013-06-04 | Dual-seal structure petroleum pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203273090U true CN203273090U (en) | 2013-11-06 |
Family
ID=49503500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320315221 Expired - Fee Related CN203273090U (en) | 2013-06-04 | 2013-06-04 | Dual-seal structure petroleum pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203273090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292090A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline with double seal structure |
-
2013
- 2013-06-04 CN CN 201320315221 patent/CN203273090U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292090A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline with double seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140604 |