CN110307407A - A kind of flexible duct armor - Google Patents
A kind of flexible duct armor Download PDFInfo
- Publication number
- CN110307407A CN110307407A CN201910658371.1A CN201910658371A CN110307407A CN 110307407 A CN110307407 A CN 110307407A CN 201910658371 A CN201910658371 A CN 201910658371A CN 110307407 A CN110307407 A CN 110307407A
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- armor
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- flexible duct
- layer
- barb
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- 238000007667 floating Methods 0.000 abstract description 10
- 230000006835 compression Effects 0.000 description 33
- 238000007906 compression Methods 0.000 description 33
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- 238000000034 method Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 239000003653 coastal water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
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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
-
- 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
Abstract
The present invention relates to a kind of flexible duct armors, are formed by connecting by multiple identical " S " type armouring layer units using self-locking form.Each " S " type armouring unit includes being attached by the barb in the S type section of upper and lower ends, each " S " type armouring layer unit cross sectional shape is almost the same, upper and lower ends are equipped with barb, and form two card slots, it is fitted close by the barb on upper layer and the card slot of lower layer, prevents armor from dislocation sliding occurs.The present invention improves the connectivity of armor, and reduction is led to the interfacial friction and sliding of flexible duct due to environment and floating motion, armor is made to misplace.
Description
Technical field
The invention belongs to flexible duct armor technical field, a kind of specific connection side of non-sticky flexible duct armor
Method.
Background technique
Demand with the world to petroleum resources is continuously increased, land and coastal waters can production of resources increasingly reduce, ocean money
The exploitation in source is more and more paid attention to.Although China's petroleum resources rich reserves, the especially South Sea just have 30,000,000,000 tons of original
The natural gas of oil and 16 tcms, but since China's petrol resources exploitation technological reserve is limited, lead to South Sea hydrocarbon rich
Resource is just robbed by the madness of surrounding countries, and therefore, the research and development technology for improving China's deep-sea oil gas resource equipment is shouldered heavy responsibilities.
Riser systems are as the key structure for connecting underwater hydrocarbon production system and floating production storage offloading.Standpipe system
System is divided into rigidity standpipe and flexible duct, wherein production construction, installation, maintenance and the maintenance period length and expense of rigidity standpipe
It is high, it is difficult to recycle, and be easy to be influenced by complicated sea situation.Flexible duct has strong resistance to corrosion, relatively rigidity standpipe, more
It is light, it is easily installed, repairs, safeguards and recycles, be widely used in a variety of applications in deep-sea oil gas development field, current 80%
The riser systems in oil field are using flexible duct.
Flexible duct is divided into sticky flexible duct and non-sticky flexible duct again, and the two all has multilayer different shape and material
The composite construction of material forms.Each layer is carried out adhesion process by physical impact or chemical technology by sticky flexible duct, adjacent
Interlayer cannot be separated from each other and slide.Each layer of non-sticky flexible duct carries out pleasantly surprised assembly, adjacent layer according to certain sequence
Between it is inviscid allow to be separated from each other and slide, have better flexibility be able to bear bigger axial force and moment of flexure, be applicable in
Range is wider, and cost is lower.
Under normal circumstances, the composition of non-sticky flexible duct includes: casing play, resistance to compression armor, tension armor, antifriction
Layer, corrosion-resistant coating, inside and outside restrictive coating etc. is wiped to collectively form.Wherein, armor is Z-type (c-type, T-type) section along cylindrical screw
The self-locking structure that line is wound, ply stacking angle are mainly used for resisting flexible duct external and internal pressure, protection is vertical at 80~90 degree
Pipe arranges stable structure.
To disclose a kind of non-adherent flexible duct drum section mutual for the patent of invention that patent publication No. is CN108119708A
Resistance to compression armor is locked, is mutually entwined using outer drum material hurricane band and interior drum material hurricane band, forms high ply stacking angle
Interlocking structure, wherein outer drum material cross sectional shape is with two sides axial direction side wing convex tooth knot made of the extension of interior right angle
Structure, interior drum material cross sectional shape are convex toothing made of axially extending with two sides radial direction side wing.The two hurricane band
Mutually chimeric winding, is connected with flexible duct internal protection set, improves the ability that armor resists radially inner and outer pressure.But it is interior
Structure is complicated for outer drum material, needs to carry out setting-out and production respectively, the self-locking connection method of proposition more demanding to manufacturing process
Constructing operation difficulty is big, and it is difficult that interior drum material is wrapped up wherein Measuring error.Conventional resistance to compression armor section form is such as a kind of
Composite and flexible pipe (patent No.: CN108825893A), the patent propose a kind of composite and flexible pipeline configuration and three kinds of common armours
Layer cross section form, including c-type, Z-type and T-type carbon steel steel band are filled, is formed by connecting by detaining or locking, although common cross sectional shape designs
Simply, easy to connect, but its tensile strength is poor, once under tension leads to connecting staggered, it is caused to be unable to complete resistance to compression
Effect occurs the whole of flexible duct and destroys.
Goal of the invention
The present invention is directed to the armor of flexible duct since complex environment load and floating motion cause its armor to be sent out
The problem of life misplaces and reduces flexible duct entirety resistance provides a kind of novel armor, improves the connectivity of armor,
Reduction leads to the interfacial friction and sliding of flexible duct due to environment and floating motion, and armor is made to misplace.Of the invention
Technical solution is as follows:
A kind of flexible duct armor is formed by connecting by multiple identical " S " type armouring layer units using self-locking form.
Each " S " type armouring unit includes being attached by the barb in the S type section of upper and lower ends, each " S " type armouring layer unit
Cross sectional shape is almost the same, and upper and lower ends are equipped with barb, and form two card slots, tight by the barb on upper layer and the card slot of lower layer
Close fit prevents armor from dislocation sliding occurs.
The invention has the benefit that
1. Novel compressive armor shape and structure of the invention is simple, design is reasonable, it is easy to accomplish, effectively reduce resistance to compression
Interlayer spacings between armor and resistance to compression armor are preferably minimized the influence of interlayer slip and friction, can be improved soft
The service life of property pipeline.
2. design is scientific and reasonable for the self-locking connection method of Novel compressive armor of the invention, easy to operate, efficiently reduce
Contact gap between armor and interior oversheath reduces the influence for sliding and rubbing between layers, make casing play it
Between it is more stable.Secondly, novel connection method connects armor closely by self-locking form, it will not be because of complex environment lotus
Carry or floating body strenuous exercise and there is a phenomenon where misplacing, improve the support and protective effect of armor, and then improve entire flexible
The security performance of pipeline guarantees the normal operation of production of hydrocarbons.
Detailed description of the invention
Fig. 1 layer flexible pipeline schematic diagram
Novel 2 schematic cross-section of " S " type resistance to compression armor of Fig. 2
Novel 2 section of " S " type resistance to compression armor Fig. 3 and attaching method thereof schematic diagram
Fig. 4 two conventional resistance to compression armor Zeta type (above) and C-shaped cross section and attaching method thereof schematic diagrames (following figure)
Fig. 5 Novel compressive armor schematic three dimensional views
Fig. 6 routine Zeta type (left figure) and c-type resistance to compression armor (right figure) schematic three dimensional views
Figure label explanation: 1-1- casing play；1-2- sealed liner set；1-3- resistance to compression armor；1-4- internal layer protective case；
1-5- tension armor；1-6- outer protective jacket；The top 2-1- S type abnormity band；The top 2-2- S type barb；The lower end 2-3- S type is different
Shape band；The lower end 2-4- S type barb；The upper end 3-1- " zeta " type grab；The upper end 3-2- " zeta " type abnormity band；The lower end 3-3-
" zeta " " type abnormity band；The lower end 3-4- " zeta " type grab；4-1-C type square band；Grab in 4-2-C type；It is fallen under 4-3-C type
Hook.
Specific embodiment
The whole compressive strength of flexible duct is mainly determined that armor dislocation reduces the anti-of its script by resistance to compression armor
Pressure energy power is easy to cause flexible duct to be destroyed by the unbalance youngster of external and internal pressure.Secondly, new armor cross sectional shape is simple, even
It connects that method is easy to operate, reduces the gap between armor and protective case, reduce and reducing armor area of section, in turn
Reduce materials'use, reduce manufacturing cost, by the connection method between novel armor, make between armor with it is new from
Lock form is mutually twisted, and reduces the gap between armor and armor, while decreasing armor and liner layer and interior
Gap between layer protective case, reduces the shadow of the friction and sliding between neighboring armatures layer between armor and interior oversheath
It rings, improves the connectivity of armor entirety, effectively increase the ability for resisting external and internal pressure load of flexible duct entirety.
Son is described in further details the present invention in the following with reference to the drawings and specific embodiments, to be clearly understood that the present invention
Technical method.
Flexible duct is the key structure for connecting seabed subsea production system and floating production system waterborne.Floating waterborne is raw
Production system includes FPSO (floating production storage offloading), floating platform, semisubmersible platform or tension leg platform (TLP) etc..Flexible duct
It can both horizontally and vertically move, flexibility is stronger, can resist well outer caused by floating motion and complex environment
Portion's load.
Fig. 1 show the schematic diagram of conventional multilayer flexible duct 1, be respectively as follows: from inside to outside with bear interior load and from
The casing play 1-1 of weight, the sealed liner set 1-2 for preventing internal flow from revealing, to bear the armor of external loads, including resistance to compression
Armor 1-3 and tension armor 1-5, two layers of tension armor 1-5 of orthogonal winding, which is used cooperatively, can play antitorque work
With to reduce the internal layer protective case 1-4 of interfacial friction and pressure and the external guarantor to prevent external environment from causing to corrode or destroy
Sheath 1-6.Resistance to compression armor 1-3 is located between the neck bush 1-2 of flexible duct and internal layer protective case 1-4, usually by forming and
It is coiled into self-locking stainless steel plate to be made, the inner surface of armor 1-3 is contacted with the fluid sealing pressure of flexible duct set 1-2, outside
Surface is contacted with the internal layer protective case 1-4 of flexible duct.Resistance to compression armor 1-3, which carries, resists 1 inside and outside pressure of flexible duct
The effect of load is one of most important functional structure of flexible duct 1.The compression strength direct relation of resistance to compression armor 1-3
The whole compression strength of flexible duct, be the key that guarantee marine oil and gas safety in production and operation.
Fig. 2 show 2 schematic diagram of new type section of Novel compressive armor 1-3, and new type section simple shape, whole is in S
Type includes: top S type abnormity band 3-1, top S type barb 3-2, lower part S type abnormity band 3-3, lower part S type barb 3-4.
Fig. 4 show the resistance to compression armor 1-3 schematic diagram of conventional zeta type and conventional c-type, and resistance to compression armor 1-3 is zeta
Type section comprising lower end zeta type grab 3-1, lower end zeta type abnormity band 3-2, upper end zeta type abnormity band 3-3, upper end
Zeta type grab 3-4.The c-type component that c-type resistance to compression armor cross sectional shape is mutually linked closely by two forms, comprising: middle part c-type side
Shape band 4-3, c-type the grab 4-1 and 4-2 at both ends.
The new type section 3 of Fig. 3 resistance to compression armor 1-3 is attached using self-locking form, self-locking section form such as Fig. 3 institute
Show, top S type abnormity is directly contacted with 2-1 with the lower part S type abnormity band 2-3 of another resistance to compression armor 1-3, top S type barb
2-2 and another layer of lower part S type barb 2-4 is self-locking to be engaged, close to connect, and three-dimensional connection effect figure is as shown in Figure 5.
Fig. 4 show conventional armor connection method.The zeta type section 3 of resistance to compression armor 1-3 is connected using self-locking form
It connects, self-locking section is as shown in Fig. 2, lower end zeta type grab 3-1 clasps another layer of upper end zeta type abnormity band 3-3, upper end
Zeta type grab 3-4 clasps another layer of lower end zeta type abnormity band 3-2, mutually self-locking up and down, close to connect, three-dimensional connection
Effect picture is as shown in Figure 5.The C-shaped cross section 4 of resistance to compression armor 1-3 is attached using symmetrical interlocking form, interlocking cross sectional shape
Formula is as shown in figure 4, middle part C-shaped square band 4-3 is attached with other bilevel grab 4-1 and 4-2, upper one layer of grab
4-1 and next layer of grab 4-2 is closely engaged, and upper one layer of grab 4-2 is closely engaged with next layer of grab 4-1, C-shaped cross section
It is symmetrically closely engaged, interconnects two-by-two, three-dimensional connection effect figure is as shown in Figure 5.
The self-locking connection method in the novel section S type resistance to compression armor 1-3 carries out self-locking connection in the form of barb, than normal
Rule resistance to compression armor 1-3 has the advantage that
1) novel S type section has smaller interlayer spacings, resistance to compression armour compared with conventional zeta type and c-type resistance to compression armor
It is self-locking closer between dress layer, while resistance to compression armor can also be avoided due to big displacement using the self-locking connection of the form of barb
It misplaces, and flexible duct entirety resistance is caused to decline, improve the anti-pressure ability of flexible duct to a certain extent.
2) novel S type section is stronger compared with the self-locking form of conventional zeta type resistance to compression armor, not only limits anti-
The movement of armor in the horizontal and vertical directions is pressed, also well ensure that the flexibility of flexible duct.
3) novel S type section is simpler compared with the type of attachment of conventional c-type resistance to compression armor.Novel S type section only needs
The self-locking connection of single layer is wanted, and c-type resistance to compression armor needs Double-layer symmetrical to connect.
Claims (1)
1. a kind of compliant riser armor is formed by connecting by multiple identical " S " type armouring layer units using self-locking form.Often
A " S " type armouring unit includes being attached by the barb in the S type section of upper and lower ends, and each " S " type armouring layer unit is cut
Face shape is almost the same, and upper and lower ends are equipped with barb, and form two card slots, close by the barb on upper layer and the card slot of lower layer
Cooperation prevents armor from dislocation sliding occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910658371.1A CN110307407A (en) | 2019-07-21 | 2019-07-21 | A kind of flexible duct armor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910658371.1A CN110307407A (en) | 2019-07-21 | 2019-07-21 | A kind of flexible duct armor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110307407A true CN110307407A (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910658371.1A Pending CN110307407A (en) | 2019-07-21 | 2019-07-21 | A kind of flexible duct armor |
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| Country | Link |
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| CN (1) | CN110307407A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066101A (en) * | 2020-08-14 | 2020-12-11 | 海洋石油工程股份有限公司 | Flexible vertical pipe and interweaving tensile armor layer thereof |
| CN112901866A (en) * | 2021-02-01 | 2021-06-04 | 中国石油大学(北京) | Profiled bar and compression-resistant armor layer for marine non-bonded composite flexible hose |
| CN113532287A (en) * | 2021-07-26 | 2021-10-22 | 中国船舶科学研究中心 | DIC-based method for measuring relative slippage of spiral members of marine flexible pipeline |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018046886A1 (en) * | 2016-09-09 | 2018-03-15 | Ge Oil & Gas Uk Limited | Flexible pipe design and manufacture |
| CN108825893A (en) * | 2018-09-07 | 2018-11-16 | 广州远和船海研究院有限公司 | A kind of composite and flexible pipe |
| CN211289058U (en) * | 2019-07-21 | 2020-08-18 | 天津大学 | Flexible pipeline armor layer |
-
2019
- 2019-07-21 CN CN201910658371.1A patent/CN110307407A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018046886A1 (en) * | 2016-09-09 | 2018-03-15 | Ge Oil & Gas Uk Limited | Flexible pipe design and manufacture |
| CN108825893A (en) * | 2018-09-07 | 2018-11-16 | 广州远和船海研究院有限公司 | A kind of composite and flexible pipe |
| CN211289058U (en) * | 2019-07-21 | 2020-08-18 | 天津大学 | Flexible pipeline armor layer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066101A (en) * | 2020-08-14 | 2020-12-11 | 海洋石油工程股份有限公司 | Flexible vertical pipe and interweaving tensile armor layer thereof |
| CN112901866A (en) * | 2021-02-01 | 2021-06-04 | 中国石油大学(北京) | Profiled bar and compression-resistant armor layer for marine non-bonded composite flexible hose |
| CN112901866B (en) * | 2021-02-01 | 2021-11-16 | 中国石油大学(北京) | Profiled bar and compression-resistant armor layer for marine non-bonded composite flexible hose |
| CN113532287A (en) * | 2021-07-26 | 2021-10-22 | 中国船舶科学研究中心 | DIC-based method for measuring relative slippage of spiral members of marine flexible pipeline |
| CN113532287B (en) * | 2021-07-26 | 2022-12-27 | 中国船舶科学研究中心 | DIC-based method for measuring relative slippage of spiral members of marine flexible pipeline |
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