CN103982742A - Marine flexible pipe cable anti-bending device based on spline - Google Patents
Marine flexible pipe cable anti-bending device based on spline Download PDFInfo
- Publication number
- CN103982742A CN103982742A CN201410209671.9A CN201410209671A CN103982742A CN 103982742 A CN103982742 A CN 103982742A CN 201410209671 A CN201410209671 A CN 201410209671A CN 103982742 A CN103982742 A CN 103982742A
- Authority
- CN
- China
- Prior art keywords
- bending device
- flexible pipe
- pipe cable
- spline
- device based
- 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.)
- Pending
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
- F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a marine flexible pipe cable anti-bending device based on a spline. The marine flexible pipe cable anti-bending device comprises a drum body and a bolt part, wherein the outer surface contour line of the drum body is a spline. The marine flexible pipe cable anti-bending device based on the spline has the advantages that the three-section structure of a traditional anti-bending device is changed, the curvature distribution of the flexible pipe cable under the protection of the anti-bending device is enabled to be smooth, the hot spot region of the pipe cable is effectively removed, the stress concentration of the flexible pipe cable is reduced, and the service life is accordingly improved; under the protection of the anti-bending device provided by the invention, the maximum curvature of the protected segment is obviously lower than the result of the traditional structure; the anti-bending device consumes less material, and the machining cost is saved.
Description
Technical field
The invention belongs to ocean engineering flexible pipe cable technical field, relate in particular to the anti-bending device in ocean engineering flexible pipe cable end.
Background technique
Along with offshore and gas development strides forward to deep-sea, rigid construction cannot meet usage requirement, and flexible structure obtains applying more and more widely.In the application of flexible pipe cable, generally to anti-bending equipment be installed with the joint of buoyancy aid, prevent the distortion of flexible pipe cable generation overbending, and then guarantee its normal operation in place.
The advantages such as anti-bending device has simple structure, easy for installation, have become the anti-bending equipment of the most frequently used ocean flexible pipe cable, for the research of anti-bending device design and processing, are international focuses always.In prior art, typical anti-bending device configuration is a conical member in the world, by geometrical shape, can be divided into three sections, and its configuration is as Fig. 1.The deficiency of the anti-bending device of prior art is; Although can make the maximum curvature of flexible pipe cable meet the demands, curvature distribution is very inhomogeneous, thereby cause umbilical, at maximum curvature place, focus fatigue failure easily occurs.
Along with the increase of the depth of water and the continuous deterioration of ocean environment, the requirement of umbilical dynamic fatigue property is also being improved constantly, existing anti-bending device configuration can not meet user demand completely, therefore need to original configuration be improved and be broken through, thereby reduce or eliminate the hot spot region that fatigue failure may occur in umbilical, improving the working life of flexible structure.
Summary of the invention
The object of the invention is: solve the deficiency of existing anti-bending device in application; a kind of anti-bending device that reduces or eliminate the hot spot region that fatigue failure may occur in umbilical is provided; make the curvature approximately equal of flexible pipe cable in anti-bending device protection section, be less than the maximum curvature that standpipe design allows simultaneously.
The technical solution used in the present invention is: the anti-bending device of ocean flexible pipe cable based on spline curve, comprise cylindrical shell and bolt part, and it is characterized in that: described barrel outer surface profile line is spline curve.
Advantage of the present invention is:
1, broken through the 3 stops configuration of traditional anti-bending device, made the curvature distribution of the flexible pipe cable under anti-bending device protection of the present invention level and smooth, effectively reduced the hot spot region of umbilical, reduced the stress of flexible pipe cable and concentrate, thereby improve its working life;
2, under anti-bending device protection of the present invention, the maximum curvature in protection section is starkly lower than the resulting result of conventional configuration;
3, the anti-bending device of patent of the present invention reduces materials, saves processing cost.
Accompanying drawing explanation
Fig. 1 is existing anti-bending device structural representation,
Fig. 2 is the anti-bending device structural representation of the ocean flexible pipe cable based on spline curve of the present invention
Fig. 3 is the anti-bending device schematic perspective view of the ocean flexible pipe cable based on spline curve of the present invention.
In figure, 1, bolt part, 2, cylindrical shell.
Embodiment
Below in conjunction with drawings and Examples, patent of the present invention is described in detail.
As shown in Figure 2, the anti-bending device of ocean flexible pipe cable based on spline curve, comprises cylindrical shell 2 and bolt part 1, and cylindrical shell 2 outer surface profile lines are spline curve.Wherein concrete pattern, the size of spline curve, determine according to ocean flexible pipe cable joint or buoyancy aid actual conditions.
In embodiment, by being solidificated in the bolt part 1 in anti-bending device, be connected to end-fitting or upper end buoyancy aid.
Claims (1)
1. the anti-bending device of the ocean flexible pipe cable based on spline curve, comprises cylindrical shell (2) and bolt part (1), it is characterized in that: described cylindrical shell (2) outer surface profile line is spline curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209671.9A CN103982742A (en) | 2014-05-16 | 2014-05-16 | Marine flexible pipe cable anti-bending device based on spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209671.9A CN103982742A (en) | 2014-05-16 | 2014-05-16 | Marine flexible pipe cable anti-bending device based on spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982742A true CN103982742A (en) | 2014-08-13 |
Family
ID=51274827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209671.9A Pending CN103982742A (en) | 2014-05-16 | 2014-05-16 | Marine flexible pipe cable anti-bending device based on spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538871A (en) * | 2018-10-24 | 2019-03-29 | 中国石油大学(北京) | Anti-bending device and flexible pipe line |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0051091A1 (en) * | 1980-10-30 | 1982-05-12 | Conoco Phillips Company | Riser pipe assembly for use in production systems |
| WO1994009245A1 (en) * | 1992-10-08 | 1994-04-28 | Viking-Mjøndalen A.S | Bending stiffener |
| CN1220717A (en) * | 1997-03-14 | 1999-06-23 | 科菲莱克西普公司 | Device for limiting bending radius of flexible duct |
| US5947642A (en) * | 1996-11-22 | 1999-09-07 | Petroleo Brasileiro S.A. - Petrobras | Method and apparatus for connecting an underwater flexible riser to a structure on the surface |
| GB2443556A (en) * | 2006-11-06 | 2008-05-07 | Optoplan As | Bend stiffener |
| CN102323747A (en) * | 2011-09-27 | 2012-01-18 | 北京理工大学 | Method and device for performing assembly simulation on flexible cable |
| US20120241037A1 (en) * | 2011-03-21 | 2012-09-27 | Sjur Kristian Lund | Module based bend stiffener |
| KR20130056385A (en) * | 2011-11-22 | 2013-05-30 | 엘에스전선 주식회사 | Bend stiffener preventing from flow channel clogging for power cable |
-
2014
- 2014-05-16 CN CN201410209671.9A patent/CN103982742A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0051091A1 (en) * | 1980-10-30 | 1982-05-12 | Conoco Phillips Company | Riser pipe assembly for use in production systems |
| WO1994009245A1 (en) * | 1992-10-08 | 1994-04-28 | Viking-Mjøndalen A.S | Bending stiffener |
| US5947642A (en) * | 1996-11-22 | 1999-09-07 | Petroleo Brasileiro S.A. - Petrobras | Method and apparatus for connecting an underwater flexible riser to a structure on the surface |
| CN1220717A (en) * | 1997-03-14 | 1999-06-23 | 科菲莱克西普公司 | Device for limiting bending radius of flexible duct |
| GB2443556A (en) * | 2006-11-06 | 2008-05-07 | Optoplan As | Bend stiffener |
| US20120241037A1 (en) * | 2011-03-21 | 2012-09-27 | Sjur Kristian Lund | Module based bend stiffener |
| CN102323747A (en) * | 2011-09-27 | 2012-01-18 | 北京理工大学 | Method and device for performing assembly simulation on flexible cable |
| KR20130056385A (en) * | 2011-11-22 | 2013-05-30 | 엘에스전선 주식회사 | Bend stiffener preventing from flow channel clogging for power cable |
Non-Patent Citations (1)
| Title |
|---|
| 席勇辉: "海洋柔性管缆疲劳半物理仿真试验研究", 《中国优秀硕士学位论文全文数据库-基础科学辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538871A (en) * | 2018-10-24 | 2019-03-29 | 中国石油大学(北京) | Anti-bending device and flexible pipe line |
| CN109538871B (en) * | 2018-10-24 | 2020-03-13 | 中国石油大学(北京) | Bending prevention device and flexible pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |