CN103292076A - Petroleum pipeline with taper structures - Google Patents
Petroleum pipeline with taper structures Download PDFInfo
- Publication number
- CN103292076A CN103292076A CN2013102164410A CN201310216441A CN103292076A CN 103292076 A CN103292076 A CN 103292076A CN 2013102164410 A CN2013102164410 A CN 2013102164410A CN 201310216441 A CN201310216441 A CN 201310216441A CN 103292076 A CN103292076 A CN 103292076A
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- China
- Prior art keywords
- mouth structure
- petroleum pipeline
- taper
- structures
- taper structures
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Abstract
The invention discloses a petroleum pipeline with taper structures. The petroleum pipeline comprises a pipeline body in a tubular shape. Two ends of the pipeline body are provided with inner threads, and taper structures are arranged on the outer sides of the inner threads. The taper of the taper structures is larger than one fifth, and the smallest inner diameter of the taper structures are equal to the diameter of the thread tooth base of the inner threads. The inner faces of the taper structures are smooth so as to facilitate contact and sealing between the taper structures and rubber sealing structures. Circular projects in arc shapes are formed in the middle of the taper structures, and the smallest inner diameter of the circular projects is small than the diameter of the thread tooth base of the inner threads so that matching between the inner threads and a connector provided with a threaded structure can be prevented from being affected. According to the petroleum pipeline with the taper structures, the taper structures hermetically contact with the seal ring of the corresponding connector, and the seal ring is further pressed tightly through the circular projects, and better contact and sealing effect is achieved.
Description
Technical field
The present invention relates to a kind of awl mouth structure petroleum pipeline, belong to the petroleum pipeline technical field.
Background technique
Sealing problem after the petroleum pipeline butt joint is a very important problem, and prior art often uses seal approach such as seal ring, seal ring, expansion structure to seal, and its structure is comparatively complicated, and sealing descends along with the passing of service time.The claimant is applying for a kind of expansion loop formula pipe end link on the same day, so also need to design a kind of awl mouth structure petroleum pipeline of simple in structure, the good airproof performance that cooperates with expansion loop formula pipe end link.
Summary of the invention
For the technical problem of the pipe end constructions seal structure complex that solves petroleum pipeline, solve the problem of the endurance difference of seal approach simultaneously, the invention provides a kind of awl mouth structure petroleum pipeline.
Purpose of the present invention is come specific implementation by the following technical programs:
A kind of awl mouth structure petroleum pipeline, the body that comprises cylindrical structure, the two ends of body respectively are provided with internal thread, and be provided with the awl mouth structure in the outside of internal thread, the tapering of described awl mouth structure is greater than 1/5, the minimum diameter of described awl mouth structure equals the diameter of the spiral shell tooth base portion of described internal thread, and the awl mouth structure internal surface be smooth surface, make it easy to the sealing that contacts with the colloid sealing configuration.
Described internal thread is the rectangular configuration screw thread.
Be provided with the annular projection of circular arc at the middle part of described awl mouth structure, the minimum diameter of described circular protrusion is less than the diameter of the spiral shell tooth base portion of described internal thread, disturbs cooperating of described internal thread and the link with worm structure to prevent it.
A kind of awl mouth structure petroleum pipeline of the present invention, the awl mouth structure contacts sealing with the seal ring of corresponding link, and by circular protrusion seal ring is further compressed, and reaches better contact sealing effect.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is a kind of structural drawing of boring the mouth structure petroleum pipeline.
Fig. 2 is use view of the present invention.
Among the figure: 1, body; 2, internal thread; 3, awl mouth structure; 4, circular protrusion.
Embodiment
Shown in Fig. 1-2, the described a kind of awl mouth structure petroleum pipeline of the embodiment of the invention, the body 1 that comprises cylindrical structure, the two ends of body 1 respectively are provided with internal thread 2, and be provided with awl mouth structure 3 in the outside of internal thread 2, the tapering of described awl mouth structure 3 is greater than 1/5, and the minimum diameter of described awl mouth structure 3 equals the diameter of the spiral shell tooth base portion of described internal thread 2, and the internal surface of awl mouth structure 3 is smooth surface, makes it easy to the sealing that contacts with the colloid sealing configuration.
Described internal thread 2 is the rectangular configuration screw thread.
Be provided with the annular projection 4 of circular arc at the middle part of described awl mouth structure 3, the minimum diameter of described circular protrusion 4 is less than the diameter of the spiral shell tooth base portion of described internal thread 2, disturbs cooperating of described internal thread 2 and the link with worm structure to prevent it.
A kind of awl mouth structure petroleum pipeline of the present invention, the awl mouth structure contacts sealing with the seal ring of corresponding link, and by circular protrusion seal ring is further compressed, and reaches better contact sealing effect.
Claims (3)
1. bore the mouth structure petroleum pipeline for one kind, the body that comprises cylindrical structure, it is characterized in that, the two ends of body respectively are provided with internal thread, and be provided with the awl mouth structure in the outside of internal thread, the tapering of described awl mouth structure is greater than 1/5, and the minimum diameter of described awl mouth structure equals the diameter of the spiral shell tooth base portion of described internal thread, and the internal surface of awl mouth structure is smooth surface.
2. a kind of awl mouth structure petroleum pipeline as claimed in claim 1 is characterized in that described internal thread is the rectangular configuration screw thread.
3. a kind of awl mouth structure petroleum pipeline as claimed in claim 1 is characterized in that, is provided with the annular projection of circular arc at the middle part of described awl mouth structure, and the minimum diameter of described circular protrusion is less than the diameter of the spiral shell tooth base portion of described internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102164410A CN103292076A (en) | 2013-06-04 | 2013-06-04 | Petroleum pipeline with taper structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102164410A CN103292076A (en) | 2013-06-04 | 2013-06-04 | Petroleum pipeline with taper structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103292076A true CN103292076A (en) | 2013-09-11 |
Family
ID=49093411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102164410A Pending CN103292076A (en) | 2013-06-04 | 2013-06-04 | Petroleum pipeline with taper structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103292076A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818250A (en) * | 1957-02-18 | 1959-08-12 | Fraser & Glass Ltd | Couplings for pipes and fittings |
| CN2145258Y (en) * | 1992-10-08 | 1993-11-03 | 张百安 | Self-sealed anti-disjoint join |
| CN1723357A (en) * | 2002-12-09 | 2006-01-18 | 瓦卢莱克曼内斯曼油气法国公司 | Method for producing a threaded tubular connection sealed to the outside |
| CN200992957Y (en) * | 2006-12-19 | 2007-12-19 | 刘玉学 | Saw tooth thread connecting mechanism |
| CN201377293Y (en) * | 2008-08-07 | 2010-01-06 | 无锡法斯特能源开发科技有限公司 | Screwed nipple for air-seal oil pipe |
| CN201521258U (en) * | 2009-10-13 | 2010-07-07 | 河北华北石油荣盛机械制造有限公司 | Anti-corrosion oil pipe coupler |
| US20110233925A1 (en) * | 2010-03-25 | 2011-09-29 | Tenaris Connections Limited | Threaded joint with elastomeric seal flange |
| CN202691346U (en) * | 2012-06-04 | 2013-01-23 | 浙江华东工程安全技术有限公司 | Ultrahigh pressure test pressure steel tube device |
| CN203297791U (en) * | 2013-06-04 | 2013-11-20 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline with taper opening structures |
-
2013
- 2013-06-04 CN CN2013102164410A patent/CN103292076A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818250A (en) * | 1957-02-18 | 1959-08-12 | Fraser & Glass Ltd | Couplings for pipes and fittings |
| CN2145258Y (en) * | 1992-10-08 | 1993-11-03 | 张百安 | Self-sealed anti-disjoint join |
| CN1723357A (en) * | 2002-12-09 | 2006-01-18 | 瓦卢莱克曼内斯曼油气法国公司 | Method for producing a threaded tubular connection sealed to the outside |
| CN200992957Y (en) * | 2006-12-19 | 2007-12-19 | 刘玉学 | Saw tooth thread connecting mechanism |
| CN201377293Y (en) * | 2008-08-07 | 2010-01-06 | 无锡法斯特能源开发科技有限公司 | Screwed nipple for air-seal oil pipe |
| CN201521258U (en) * | 2009-10-13 | 2010-07-07 | 河北华北石油荣盛机械制造有限公司 | Anti-corrosion oil pipe coupler |
| US20110233925A1 (en) * | 2010-03-25 | 2011-09-29 | Tenaris Connections Limited | Threaded joint with elastomeric seal flange |
| CN202691346U (en) * | 2012-06-04 | 2013-01-23 | 浙江华东工程安全技术有限公司 | Ultrahigh pressure test pressure steel tube device |
| CN203297791U (en) * | 2013-06-04 | 2013-11-20 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline with taper opening structures |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130911 |