CN103629453B - A kind of composite soft tube trapezoid cross section interlocking resistance to compression armor - Google Patents
A kind of composite soft tube trapezoid cross section interlocking resistance to compression armor Download PDFInfo
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- CN103629453B CN103629453B CN201310447636.6A CN201310447636A CN103629453B CN 103629453 B CN103629453 B CN 103629453B CN 201310447636 A CN201310447636 A CN 201310447636A CN 103629453 B CN103629453 B CN 103629453B
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- described steel
- band groove
- steel bar
- steel band
- resistance
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- 230000006835 compression Effects 0.000 title claims abstract description 49
- 238000007906 compression Methods 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 138
- 239000010959 steel Substances 0.000 claims abstract description 138
- 239000000314 lubricant Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 210000000678 band cell Anatomy 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 28
- 210000001624 hip Anatomy 0.000 description 13
- 239000002184 metal Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000001464 adherent effect Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor, it is characterized in that: it comprises two profile shapes, two profile shapes include a steel bar and a steel band groove, the cross section of steel bar is isosceles trapezoid, the cross section of steel band groove is the isosceles trapezoid at the supreme end, and the width of rebate of steel band groove is greater than steel bar upper base width, and the width of going to the bottom of steel band groove is greater than steel bar and goes to the bottom width, steel bar is arranged in steel band groove, and steel bar is isometric with steel band groove in the longitudinal direction.By the side waist of steel band groove of profile shapes just put and the mutual hook of side waist of the steel band groove of inverted profile shapes, adjacent two profile shapes interlocking is wrapped on the inside liner outer wall of composite soft tube circlewise.Due to sheathed steel band groove outside steel bar, therefore, adjacent steel bar possesses certain activity space, thus can increase the flexibility of resistance to compression armor, and also for steel bar creep strain provides space allowance, can bear larger outside or internal pressure simultaneously.The present invention can be widely used in the flexible compound pipeline structure of the field such as ocean engineering or aerospace engineering.
Description
Technical field
The present invention relates to a kind of armouring composite soft tube, particularly about a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor.
Background technique
Traditional submarine pipeline is generally based on steel pipe, and the construction of its entirety, installation and follow-up maintenance work cycle are long and costly.The flexible compound flexible pipe that Abroad in Recent Years rises because anticorrosive property is good, for seafloor topography strong adaptability, laying speed is fast and expense is low, not easily wax deposition and the advantage such as can to reuse, started to be applied in the submarine pipeline of seabed oil, gas and water.
Flexible compound flexible pipe mainly contains two kinds, and one is cohesiveencess composite soft tube, and another kind is non-adhesive composite soft tube.The connection of cohesiveencess composite soft tube is generally extruded by polymeric layer and metal enhancement layer to be connected, make to produce higher bonding strength between polymer material layer and metal enhancement layer by special operation after it is extruded, such flexible pipe is general only to be applied in comparatively short distance crossover piping.And non-adherent composite soft tube is generally combined by the mode of physics by polymer material layer and metal enhancement layer, its every one deck and each interlayer do not need to use chemical technology to bond, each interlayer carrys out transmitted load by friction and contact, it has good flexibility, become the predominate architecture in flexible pipe gradually, this type of composite soft tube generally uses in the pipeline of long Distance geometry high pressure.Non-adherent composite soft tube is widely used in the conveying to crude oil, rock gas or water in ocean engineering.
Non-adherent composite soft tube is made up of multilayers such as framework layer, inside liner, resistance to compression armor, tension armor and external coatings, wherein resistance to compression armor is mainly used in resisting radial force, and formed by profile shapes interlocking, its profile shapes sectional shape has Z, C, X, T-shaped etc.The resistance to compression armor of prior art becomes wide-angle to be entwined by profile shapes with tubular axis, and winding angle, generally close to 90 degree, therefore can provide larger circumferential force to resist comparatively imperial palace pressure, play effect of contraction, prevent inside liner explosion to inside liner.Resistance to compression armor has certain gap after being wound around between adjacent cross section, and flexible pipe can be made to have certain flexibility.Joint is to the good prerequisite be fixedly to provide compared with imperial palace pressure of resistance to compression armor steel cord end, when joint can not to resistance to compression armor steel cord end provide good fixing time, resistance to compression armor will not have the ability providing pressure in opposing preferably, and very fast interior pressure be passed to tension armor.Because the steel wire winding angle of tension armor is between 30 ~ 40 degree, tension armor is mainly used in resisting axial pressure, and the ability of now resisting circumferential force is more weak.So, joint and resistance to compression armor steel cord end fixing extremely important.
Owing to having certain gap between adjacent cross section, can ensure that flexible pipe has certain flexibility like this, bring hidden danger simultaneously, when hose bending is excessive or axial motion is excessive, to making, the motion between adjacent sections is excessive, and then cause the hidden danger having between adjacent cross section and mutually skid off, the forfeiture of cross section interlocking function will be caused.The bending flexibility of gap this layer larger between resistance to compression armor adjacent sections is better, but the creep compliance that the increase in gap can cause inside liner thus is also increasing with it.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor effectively preventing adjacent sections from mutually skidding off.
The technological scheme that technical solution problem of the present invention adopts is: a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor, it is characterized in that: it comprises two profile shapes, profile shapes described in two includes a steel bar and a steel band groove, the cross section of described steel bar is isosceles trapezoid, the cross section of described steel band groove is the isosceles trapezoid at the supreme end, and the width of rebate of described steel band groove is greater than described steel bar upper base width, the width of going to the bottom of described steel band groove is greater than described steel bar and goes to the bottom width, described steel bar is arranged in described steel band groove, and described steel bar is isometric with described steel band groove in the longitudinal direction,
By the side waist of described steel band groove of described profile shapes just put and the mutual hook of side waist of the described steel band groove of inverted described profile shapes, adjacent two described profile shapes interlockings are wrapped on the inside liner outer wall of composite soft tube circlewise.
Described steel bar is arranged on the central position in described steel band groove, and the individual both sides waist of described steel bar and the perpendicular distance between the side waist of steel band groove described in the same side are at least thick 3 times of described steel band cell wall, and the wall thickness of described steel band groove is not less than 1.5mm.
Each corner of described steel bar all arranges arc round angle transition, and the drift angle of described steel bar is 110 °-130 °, and the base angle of described steel bar is equal with the base angle of described steel band groove.
The side waist of described steel bar is equal with the side waist length of described steel band groove.
Described steel bar and described steel band groove all adopt carbon steel, and described steel bar is solid.
Described inside liner outer wall is provided with resistance to compression armor described in one or more layers, and adds the lubricant oil covering described steel bar and described steel band groove in described resistance to compression armor.
The present invention is owing to taking above technological scheme, it has the following advantages: 1, due to sheathed steel band groove outside steel bar, therefore steel bar can be fixed on design attitude continuously and bear pipe interior and outside pressure, adjacent steel bar has possessed certain activity space, add the flexibility of resistance to compression armor, and also for steel bar creep strain provides space allowance, under making resistance to compression armor can be applied in higher temperature conditions.Adopt the form of " interlocking " to ensure that flexible hose resistance to compression armor possesses good flexibility between adjacent steel trough of belt, make resistance to compression armor can bear larger outside or internal pressure.2, steel bar and steel band groove all devise arc round angle transition, concentrate the metal tip caused with steel bar creep stressed to prevent stress.3, steel bar is solid, and the comparatively large and excellent in uniformity of its cross sectional moment of inertia, therefore its ability of bearing all directions moment comparatively balances, and make the Applicable scope of whole resistance to compression armor wider, Security is higher.4, in resistance to compression armor, add the lubricant oil covering space between steel bar and steel band groove, the frictional force between adjacent structure can be made to reduce greatly, ensure that structural life-time, the present invention can be widely used in the flexible compound pipeline structure of the field such as ocean engineering or aerospace engineering.
Accompanying drawing explanation
Fig. 1 is the structural representation of composite soft tube of the present invention
Fig. 2 is the structural representation of resistance to compression armor of the present invention
Fig. 3 is the cross sectional representation of profile shapes of the present invention
Fig. 4 is profile shapes adjacent sections hook schematic diagram of the present invention
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, composite hose structure involved in the present invention and existing non-adherent composite hose structure similar, from internal layer to skin, comprise framework layer 1, inside liner 2, resistance to compression armor 3, first wearing layer 4, first tension armor 5, second wearing layer 6, second tension armor 7, the 3rd wearing layer 8, thermal insulation layer 9 and external coating 10 successively.Wherein, framework layer 1 is formed by interlocking steel strip winding, and conveying fluid in framework layer 1, for preventing the conquassation of inside liner 2; Framework layer 1 outer surface is provided with the inside liner 2 for sealing conveying fluid, and inside liner 2 outer wall is provided with resistance to compression armor 3, and resistance to compression armor 3 is non-stick layer, and interlayer can the changing of the relative positions mutually; The first wearing layer 4 is enclosed with at resistance to compression armor 3 outer surface interval; The first tension armor 5 is provided with between the first wearing layer 4 outer surface and the second wearing layer 6 internal surface, second wearing layer 6 is for reducing the friction between the first tension armor 5 and the second tension armor 7, the second tension armor 7 is provided with between the second wearing layer 6 outer surface and the 3rd wearing layer 8, be enclosed with thermal insulation layer 9 at the 3rd wearing layer 8 outer surface, be enclosed with external coating 10 at thermal insulation layer 9 outer surface and form non-adherent composite soft tube.
As shown in Figure 2, inventive point of the present invention is to improve resistance to compression armor 3: resistance to compression armor 3 of the present invention is wound in ring-type by the mutual hook of two profile shapes 31, and two profile shapes 31 and composite soft tube tubular axis winding angle are close to 90 degree.As shown in Figure 3, profile shapes 31 is made up of a steel bar 32 and a steel band groove 33.The cross section of steel bar 32 is isosceles trapezoid, and the cross section of steel band groove 33 is the isosceles trapezoid at the supreme end, and the notch of steel band groove 33 and the width of going to the bottom are greater than the upper base of steel bar 32 and width of going to the bottom respectively.Steel bar 32 is arranged in steel band groove 33, and steel bar 32 is isometric with steel band groove 33 in the longitudinal direction.
In a preferred embodiment, steel bar 32 is arranged on the central position in steel band groove 33, and the both sides waist of steel bar 32 and the perpendicular distance between the side waist 37 of the same side steel band groove 33 are at least 3 times of steel band groove 33 wall thickness, the wall thickness of steel band groove 33 is not less than 1.5mm.
In a preferred embodiment, each corner of steel bar 32 all arranges arc round angle transition.
In a preferred embodiment, the drift angle of steel bar 32 is 110-130 degree.
In a preferred embodiment, the base angle of steel bar 32 is equal with the base angle of steel band groove 33.
In a preferred embodiment, the side waist of steel bar 32 is equal with the side waist length of steel band groove 33.
In a preferred embodiment, steel bar 32 and steel band groove 33 all adopt carbon steel, and steel bar 32 is solid.
As shown in Figure 2,4, the present invention in use, the mutual hook of side waist of the steel band groove 33 of the side waist of the steel band groove 33 of the profile shapes 31 first just put one and another inverted profile shapes 31, and there is a fixed gap between two of hook side waists, adjacent two profile shapes 31 interlock be wrapped in inside liner 2 circlewise outer wall on.Due to sheathed steel band groove 33 outside steel bar 32, therefore, adjacent steel bar 32 possesses certain activity space, thus can increase the flexibility of resistance to compression armor 3, and also provide space allowance for steel bar 32 creep strain, under making resistance to compression armor 3 can be applied in higher temperature conditions.
In a preferred embodiment, inside liner 2 outer wall is provided with one or more layers resistance to compression armor 3.
In a preferred embodiment, the lubricant oil that can cover steel bar 32 and steel band groove 33 is added in resistance to compression armor 3.
The various embodiments described above are only for illustration of the present invention, and wherein the structure and Placement etc. of each parts all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (8)
1. a composite soft tube trapezoid cross section interlocking resistance to compression armor, it is characterized in that: it comprises two profile shapes, two described profile shapes include a steel bar and a steel band groove, the cross section of described steel bar is isosceles trapezoid, the cross section of described steel band groove is the isosceles trapezoid at the supreme end, and the width of rebate of described steel band groove is greater than described steel bar upper base width, the width of going to the bottom of described steel band groove is greater than described steel bar and goes to the bottom width, described steel bar is arranged in described steel band groove, and described steel bar is isometric with described steel band groove in the longitudinal direction; Each corner of described steel bar all arranges arc round angle transition, and the drift angle of described steel bar is 110 °-130 °, and the base angle of described steel bar is equal with the base angle of described steel band groove;
By the side waist of described steel band groove of described profile shapes just put and the mutual hook of side waist of the described steel band groove of inverted described profile shapes, adjacent two described profile shapes interlockings are wrapped on the inside liner outer wall of composite soft tube circlewise.
2. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 1, it is characterized in that: described steel bar is arranged on the central position in described steel band groove, and the both sides waist of described steel bar and the perpendicular distance between the side waist of steel band groove described in the same side are at least thick 3 times of described steel band cell wall, the wall thickness of described steel band groove is not less than 1.5mm.
3. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 1 and 2, is characterized in that: the side waist of described steel bar is equal with the side waist length of described steel band groove.
4. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 1 and 2, is characterized in that: described steel bar and described steel band groove all adopt carbon steel, and described steel bar is solid.
5. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 3, is characterized in that: described steel bar and described steel band groove all adopt carbon steel, and described steel bar is solid.
6. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 1 or 2 or 5, it is characterized in that: described inside liner outer wall is provided with resistance to compression armor described in one or more layers, and in described resistance to compression armor, add the lubricant oil covering described steel bar and described steel band groove.
7. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 3, it is characterized in that: described inside liner outer wall is provided with resistance to compression armor described in one or more layers, and in described resistance to compression armor, add the lubricant oil covering described steel bar and described steel band groove.
8. a kind of composite soft tube trapezoid cross section interlocking resistance to compression armor according to claim 4, it is characterized in that: described inside liner outer wall is provided with resistance to compression armor described in one or more layers, and in described resistance to compression armor, add the lubricant oil covering described steel bar and described steel band groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447636.6A CN103629453B (en) | 2013-09-25 | 2013-09-25 | A kind of composite soft tube trapezoid cross section interlocking resistance to compression armor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447636.6A CN103629453B (en) | 2013-09-25 | 2013-09-25 | A kind of composite soft tube trapezoid cross section interlocking resistance to compression armor |
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| Publication Number | Publication Date |
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| CN103629453A CN103629453A (en) | 2014-03-12 |
| CN103629453B true CN103629453B (en) | 2016-02-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758118A (en) * | 2018-08-13 | 2018-11-06 | 宁波欧佩亚海洋工程装备有限公司 | A kind of deep-sea flexible composite pipe |
| CN114645978A (en) * | 2020-12-17 | 2022-06-21 | 无棣海忠软管制造有限公司 | Marine non-bonded flexible pipeline with skin heat tracing and optical fiber monitoring functions |
| CN112901866B (en) * | 2021-02-01 | 2021-11-16 | 中国石油大学(北京) | A profile and compression armor for marine non-bonded composite flexible hose |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568653U (en) * | 2009-12-30 | 2010-09-01 | 孟庆义 | Sea transport pipe |
| CN201731192U (en) * | 2010-05-24 | 2011-02-02 | 陈怡� | Large-caliber double-well corrugated water pipe |
| CN103090125A (en) * | 2013-01-22 | 2013-05-08 | 中国海洋石油总公司 | Composite flexible pipe anti-compression armor layer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000036324A1 (en) * | 1998-12-16 | 2000-06-22 | Nkt Flexibles I/S | Armoured flexible pipe and use of same |
| FR2817318B1 (en) * | 2000-11-24 | 2002-12-27 | Coflexip | FLEXIBLE TUBULAR CONDUCT |
| FR2824890B1 (en) * | 2001-05-18 | 2004-04-16 | Coflexip | FLEXIBLE DUCT WITH STAPLED BOTTOM |
| FR2831238B1 (en) * | 2001-10-24 | 2003-12-26 | Coflexip | FLEXIBLE TUBULAR PIPE FOR THE TRANSPORT OF CARCASS HYDROCARBONS CONSISTING OF AN ELONGATED WOUND ELEMENT STAPED BY A STRIP |
| CN203488867U (en) * | 2013-09-25 | 2014-03-19 | 中国海洋石油总公司 | Trapezoid cross section interlocking compression-resisting armor layer for composite hose |
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2013
- 2013-09-25 CN CN201310447636.6A patent/CN103629453B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568653U (en) * | 2009-12-30 | 2010-09-01 | 孟庆义 | Sea transport pipe |
| CN201731192U (en) * | 2010-05-24 | 2011-02-02 | 陈怡� | Large-caliber double-well corrugated water pipe |
| CN103090125A (en) * | 2013-01-22 | 2013-05-08 | 中国海洋石油总公司 | Composite flexible pipe anti-compression armor layer |
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| CN103629453A (en) | 2014-03-12 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |