CN103644399B - A kind of composite soft tube trapezoid cross section is fitted together to resistance to compression armor - Google Patents
A kind of composite soft tube trapezoid cross section is fitted together to resistance to compression armor Download PDFInfo
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- CN103644399B CN103644399B CN201310447231.2A CN201310447231A CN103644399B CN 103644399 B CN103644399 B CN 103644399B CN 201310447231 A CN201310447231 A CN 201310447231A CN 103644399 B CN103644399 B CN 103644399B
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- 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
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- General Engineering & Computer Science (AREA)
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to a kind of composite soft tube trapezoid cross section and be fitted together to resistance to compression armor, it is characterized in that: it comprises two profile shapes, two profile shapes include a steel bar and an oblique I-shaped steel band, the cross section of steel bar is isosceles trapezoid, the upper base of steel bar has trapezoid boss upwardly, to go to the bottom the trapezoid boss had to lower process, oblique I-shaped steel band is by the upper flange paralleled and lower wing plate, and the inclination web composition be connected between upper flange and lower wing plate, and folded acute angle is equal with the base angle of steel bar between upper flange with web, the web length of oblique I-shaped steel band is suitable with the side waist length of steel bar.The drift angle of steel bar embeds in the obtuse angle groove of oblique I-shaped steel band, the base angle of the same side embeds in the acute groove of same skew back I-steel band, form profile shapes, embedded by the steel bar of another inverted profile shapes in the oblique I-shaped steel band of the profile shapes just put, two profile shapes are mutually fitted together to and are wrapped in circlewise on the inside liner outer wall of composite soft tube.The present invention can be widely used in the flexible compound pipeline structure of the field such as ocean or aerospace engineering.
Description
Technical field
The present invention relates to a kind of armouring composite soft tube, particularly a kind of composite soft tube trapezoid cross section is fitted together to 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 that can solve to misplace up and down between steel bar displacement and radial displacement and be fitted together to resistance to compression armor.
For achieving the above object, the present invention takes following technological scheme: a kind of composite soft tube trapezoid cross section is fitted together to resistance to compression armor, it is characterized in that: it comprises two profile shapes, two described profile shapes include a steel bar and an oblique I-shaped steel band, the cross section of described steel bar is isosceles trapezoid, the upper base of described steel bar has trapezoid boss upwardly, to go to the bottom the trapezoid boss had to lower process, described oblique I-shaped steel band is by the upper flange paralleled and lower wing plate, and the inclination web composition be connected between upper flange and lower wing plate, and folded acute angle is equal with the base angle of described steel bar between upper flange with web, the web length of described oblique I-shaped steel band is suitable with the side waist length of described steel bar,
The drift angle of described steel bar embeds in the obtuse angle groove of described oblique I-shaped steel band, in the acute groove of oblique I-shaped steel band described in embedding the same side, base angle of the same side, form described profile shapes, embedded by the steel bar of another inverted described profile shapes in the oblique I-shaped steel band of the described profile shapes just put, two described profile shapes are mutually fitted together to and are wrapped in circlewise on the inside liner outer wall of composite soft tube.
Each corner of described steel bar all arranges arc round angle transition.
The drift angle of described steel bar is 120 degree, and described steel bar upper base is contour with the trapezoid boss on going to the bottom.
Described steel bar and described oblique I-shaped steel band all adopt carbon steel, and described steel bar is solid.
Between two adjacent described steel bars, space is at least 3 times of described oblique I-shaped steel band wall thickness, and the wall thickness of described oblique I-shaped steel band is not less than 1.5mm.
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, adds the lubricant oil covering described steel bar and described oblique I-shaped steel band.
The present invention is owing to taking above technological scheme, it has the following advantages: 1, tiltedly I-shaped steel band is tightly chimeric with steel bar, ensure the relatively fixing of position between adjacent oblique I-shaped steel band, therefore, each pipeline section is by larger single force or face power, due to sidewall, adjacent steel bar contacts with each other that to share part stressed, to ensure that pipeline can not lose efficacy by external force.Adjacent steel bar leaves suitable space, also possesses certain space between oblique I-shaped steel band at pipeline axial, therefore for pipe-line system provides " flexibility ".2, because the long limit of steel bar and the two ends of minor face all devise the straight grooves of mating with oblique I-shaped steel band wing plate, the straight grooves of steel bar all devises arc round angle transition, avoid impacting with oblique I-shaped steel band generation nib contacts, therefore tiltedly I-shaped steel band can when assembling on wing plate and steel bar below can transition smooth-going.3, steel bar is solid steel bar, the comparatively large and excellent in uniformity of its cross sectional moment of inertia, and therefore its ability of bearing the moment of all directions comparatively balances, and Security is higher; And have between adjacent structure in certain " space ", and inject a great deal of lubricant oil, the frictional force therefore between adjacent structure reduces greatly, ensure that the life-span of structure.Therefore, 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 composite hose structure schematic diagram of the present invention
Fig. 2 is resistance to compression armor schematic diagram of the present invention
Fig. 3 is profile shapes cross sectional representation of the present invention
Fig. 4 is that profile shapes adjacent sections of the present invention is fitted together to schematic diagram
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 two different in nature materials 31 are mutually chimeric, and the winding angle of two different in nature materials 31 and composite soft tube tubular axis is close to 90 degree.As shown in Figure 3, profile shapes 31 comprises steel bar 32 and an oblique I-shaped steel band 33.Wherein, the cross section of steel bar 32 is isosceles trapezoid, and the upper base of steel bar 32 has the trapezoid boss of projection up and down respectively with going to the bottom.Oblique I-shaped steel band 33 is by the upper flange paralleled and lower wing plate, and the inclination web composition be connected between upper flange and lower wing plate, and folded acute angle is equal with the base angle of steel bar 32 between upper flange with web, the web length of oblique I-shaped steel band 33 is suitable with the side waist length of steel bar 32.
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 120 degree.
In a preferred embodiment, steel bar 32 upper base is contour with the trapezoid boss on going to the bottom.
In a preferred embodiment, steel bar 32 and oblique I-shaped steel band 33 all adopt carbon steel, and steel bar 32 is solid.
In a preferred embodiment, between two adjacent steel bars 32, space is at least 3 times of oblique I-shaped steel band 33 wall thickness, and the wall thickness of oblique I-shaped steel band 33 is not less than 1.5mm.
As shown in Figure 2,4, the drift angle of steel bar 32 in use, first embeds in the obtuse angle groove of oblique I-shaped steel band 33, and leaves a fixed gap by the present invention; The base angle of the same side embeds in the acute groove of same skew back I-steel band 33, and has a fixed gap, to form profile shapes 31.Use same method obtain another profile shapes 31 and be inverted, the steel bar 32 of inverted profile shapes 31 is embedded the oblique I-shaped steel band 33 of the profile shapes 31 just put, then two profile shapes 31 are fitted together to mutually ring-type and are wrapped on inside liner 2 outer wall.There is a fixed gap also for metal creep strain provides space allowance between adjacent steel bar 32, therefore can be applied in higher temperature environment.For whole composite soft tube, resistance to compression armor 3 provides enough flexibilities under the prerequisite of proof strength, tiltedly I-shaped steel band 33 is fitted together to steel bar 32 simultaneously, trapezoid boss on steel bar 32 upper base/go to the bottom is close to the upper flange/lower wing plate of oblique I-shaped steel band 33 respectively, the circumferential misalignment displacement of steel bar 32 can be limited like this, reduce skidding off of adjacent steel bar 32.
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, need in resistance to compression armor 3 to add the lubricant oil that can cover steel bar 32 and oblique I-shaped steel band 33.
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 (10)
1. a composite soft tube trapezoid cross section is fitted together to resistance to compression armor, it is characterized in that: it comprises two profile shapes, two described profile shapes include a steel bar and an oblique I-shaped steel band, the cross section of described steel bar is isosceles trapezoid, the upper base of described steel bar has trapezoid boss upwardly, to go to the bottom the trapezoid boss had to lower process, described oblique I-shaped steel band is by the upper flange paralleled and lower wing plate, and the inclination web composition be connected between upper flange and lower wing plate, and folded acute angle is equal with the base angle of described steel bar between upper flange with web, the web length of described oblique I-shaped steel band is suitable with the side waist length of described steel bar,
The drift angle of described steel bar embeds in the obtuse angle groove of described oblique I-shaped steel band, in the acute groove of oblique I-shaped steel band described in embedding the same side, base angle of the same side, form described profile shapes, embedded by the steel bar of another inverted described profile shapes in the oblique I-shaped steel band of the described profile shapes just put, two described profile shapes are mutually fitted together to and are wrapped in circlewise on the inside liner outer wall of composite soft tube.
2. a kind of composite soft tube trapezoid cross section according to claim 1 is fitted together to resistance to compression armor, it is characterized in that: each corner of described steel bar all arranges arc round angle transition.
3. a kind of composite soft tube trapezoid cross section according to claim 1 is fitted together to resistance to compression armor, it is characterized in that: the drift angle of described steel bar is 120 degree, and described steel bar upper base is contour with the trapezoid boss on going to the bottom.
4. a kind of composite soft tube trapezoid cross section according to claim 2 is fitted together to resistance to compression armor, it is characterized in that: the drift angle of described steel bar is 120 degree, and described steel bar upper base is contour with the trapezoid boss on going to the bottom.
5. a kind of composite soft tube trapezoid cross section according to claim 1 or 2 or 3 or 4 is fitted together to resistance to compression armor, it is characterized in that: described steel bar and described oblique I-shaped steel band all adopt carbon steel, and described steel bar is solid.
6. a kind of composite soft tube trapezoid cross section according to claim 1 or 2 or 3 or 4 is fitted together to resistance to compression armor, it is characterized in that: between two adjacent described steel bars, space is at least 3 times of described oblique I-shaped steel band wall thickness, and the wall thickness of described oblique I-shaped steel band is not less than 1.5mm.
7. a kind of composite soft tube trapezoid cross section according to claim 5 is fitted together to resistance to compression armor, it is characterized in that: between two adjacent described steel bars, space is at least 3 times of described oblique I-shaped steel band wall thickness, and the wall thickness of described oblique I-shaped steel band is not less than 1.5mm.
8. a kind of composite soft tube trapezoid cross section according to claim 1 or 2 or 3 or 4 or 7 is fitted together to resistance to compression armor, 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 oblique I-shaped steel band.
9. a kind of composite soft tube trapezoid cross section according to claim 5 is fitted together to resistance to compression armor, 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 oblique I-shaped steel band.
10. a kind of composite soft tube trapezoid cross section according to claim 6 is fitted together to resistance to compression armor, 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 oblique I-shaped steel band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310447231.2A CN103644399B (en) | 2013-09-25 | 2013-09-25 | A kind of composite soft tube trapezoid cross section is fitted together to resistance to compression armor |
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| CN201310447231.2A CN103644399B (en) | 2013-09-25 | 2013-09-25 | A kind of composite soft tube trapezoid cross section is fitted together to resistance to compression armor |
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| CN103644399A CN103644399A (en) | 2014-03-19 |
| CN103644399B true CN103644399B (en) | 2015-11-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106855482A (en) * | 2016-12-27 | 2017-06-16 | 中国石油天然气集团公司 | A kind of test method and device for simulating the abrasion of compliant riser armor interlayer |
| CN108119708B (en) * | 2018-01-17 | 2023-12-08 | 哈尔滨工程大学 | Non-bonding flexible riser I-shaped section interlocking compression-resistant armor layer |
| CN111016146A (en) * | 2019-12-18 | 2020-04-17 | 广西金盛科技发展有限公司 | High-strength stretch-proof RF steel-plastic composite reinforced winding pipe and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2782142A1 (en) * | 1998-08-10 | 2000-02-11 | Coflexip | Flexible pipeline for petroleum gas has pressure winding formed of wound wire with web of traction armouring |
| CN201281181Y (en) * | 2008-11-03 | 2009-07-29 | 上海清远管业科技有限公司 | Plastic clad steel band binding pipe |
| CN201661778U (en) * | 2010-02-03 | 2010-12-01 | 汤铁卉 | Composite flat-wall steel-plastic embedded type seamless drain pipe |
| CN202689852U (en) * | 2012-06-27 | 2013-01-23 | 河北恒华昌耀建材科技有限公司 | Spacer bar for transverse tile edge reinforced stainless steel warm edges on upper butt joint weld of hollow glass |
| CN203488871U (en) * | 2013-09-25 | 2014-03-19 | 中国海洋石油总公司 | Trapezoid cross section embedded compression-resisting armor layer for composite hose |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2910840B2 (en) * | 1996-06-28 | 1999-06-23 | 三井金属エンジニアリング株式会社 | Plastic composite tube |
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2013
- 2013-09-25 CN CN201310447231.2A patent/CN103644399B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2782142A1 (en) * | 1998-08-10 | 2000-02-11 | Coflexip | Flexible pipeline for petroleum gas has pressure winding formed of wound wire with web of traction armouring |
| CN201281181Y (en) * | 2008-11-03 | 2009-07-29 | 上海清远管业科技有限公司 | Plastic clad steel band binding pipe |
| CN201661778U (en) * | 2010-02-03 | 2010-12-01 | 汤铁卉 | Composite flat-wall steel-plastic embedded type seamless drain pipe |
| CN202689852U (en) * | 2012-06-27 | 2013-01-23 | 河北恒华昌耀建材科技有限公司 | Spacer bar for transverse tile edge reinforced stainless steel warm edges on upper butt joint weld of hollow glass |
| CN203488871U (en) * | 2013-09-25 | 2014-03-19 | 中国海洋石油总公司 | Trapezoid cross section embedded compression-resisting armor layer for composite hose |
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| CN103644399A (en) | 2014-03-19 |
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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 |
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