CN102927383A - Tooth-shaped-section pressure-resisting armor layer for composite hoses - Google Patents
Tooth-shaped-section pressure-resisting armor layer for composite hoses Download PDFInfo
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- CN102927383A CN102927383A CN2012104308883A CN201210430888A CN102927383A CN 102927383 A CN102927383 A CN 102927383A CN 2012104308883 A CN2012104308883 A CN 2012104308883A CN 201210430888 A CN201210430888 A CN 201210430888A CN 102927383 A CN102927383 A CN 102927383A
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- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The invention relates to a tooth-shaped-section pressure-resisting armor layer for composite hoses. The tooth-shaped-section pressure-resisting armor layer is characterized by being formed by winding and interlocking a profiled bar, wherein the section of the profiled bar is tooth-shaped; the section comprises a girder; the girder comprises a first bottom wall and a second bottom wall along the length direction; an end tooth-shaped structure is integrally arranged at two ends of the second bottom wall toward the same side respectively; two middle tooth-shaped structures are arranged at intervals on the second bottom wall between the two end tooth-shaped structures; end depressed areas are formed between the middle tooth-shaped structures and the adjacent end tooth-shaped structures; a middle depressed area is formed between the two middle tooth-shaped structures; the two end tooth-shaped structures are bent toward the same side; middle tooth-shaped structures of an adjacent profiled bar are inserted into the end depressed areas of the profiled bar; end tooth-shaped structures of two adjacent profiled bars are inserted into the middle depressed area of the profiled bar; the adjacent profiled bars are mutually meshed. The tooth-shaped-section pressure-resisting armor layer has the advantages of strengthening the bending flexibility of the pressure resisting armor layers and effectively preventing the adjacent sections of the pressure resisting armor layers from mutually sliding out, thus being widely applied to the structure setting of the marine composite hoses.
Description
Technical field
The present invention relates to a kind of armor, particularly about a kind of ocean composite soft tube tooth shape cross section resistance to compression armor.
Background technique
Traditional, conventional submarine pipeline is take steel pipe as main, whole construction, installation and follow-up maintenance work cycle, long expense was high, and the flexible compound pipeline that Abroad in Recent Years rises is because anticorrosive property is good, submarine topography landforms strong adaptability, laying speed is fast, expense is low, be difficult for wax deposition and the conveying that advantage begins to be applied to seabed oil, G﹠W such as can reuse comes up.The flexible compound pipeline comprises cohesiveencess composite soft tube and non-adhesive composite soft tube; Wherein, the cohesiveencess composite soft tube generally is squeezed into one by polymeric layer and metal enhancement layer, makes the higher bonding strength of generation between polymer material layer and metal enhancement layer by special operation after the extrusion modling.Such flexible pipe generally is applied to the short distance jumper pipe.The non-adhesive composite soft tube is to be combined by polymer material layer and the metal enhancement layer mode by physics, and layer does not need to use chemical technology bonding with interlayer, and each interlayer comes transmitted load by friction and contact, and it is better flexible.The non-adhesive composite soft tube generally is used for the pipeline of long distance and high pressure to be carried, and it is more and more extensive that it is applied in the ocean engineering conveying to crude oil or rock gas or water.The non-adhesive composite soft tube becomes the main flow structure in the flexible pipe gradually, by framework layer, inside liner, resistance to compression armouring layer by layer, the composite pipe body structure that consists of of the multilayer such as tension armor, external coating.Wherein the resistance to compression armor mainly provides the opposing radial force, and by profile shapes interlocking formation, profile shapes has Z, C, X, T-shaped etc., the resistance to compression armor becomes wide-angle to be entwined by profile shapes with tubular axis, winding angle is generally close to 90 degree, can provide larger circumferential force to press than imperial palace with opposing, inside liner is played effect of contraction, prevent the inside liner explosion.Certain gap after twining, the resistance to compression armor is arranged between adjacent cross section, can guarantee that like this flexible pipe has certain flexibility, and the gap between adjacent sections is larger, the crooked flexibility of this layer is better, but has also brought hidden danger simultaneously, because the increase in gap has caused the increase of its inside liner creep compliance, and when crooked excessive or axial motion is excessive, motion between adjacent sections is excessive, and the possibility that mutually skids off is arranged between adjacent cross section, can cause the forfeiture of cross section interlocking function.
Summary of the invention
For the problems referred to above, the purpose of this invention is to provide a kind of can be in the situation that composite soft tube inside liner creep compliance be identical, strengthen the crooked flexible of resistance to compression armor, can effectively prevent the composite soft tube tooth shape cross section resistance to compression armor that resistance to compression armor adjacent sections skids off mutually simultaneously.
For achieving the above object, the present invention takes following technological scheme: a kind of composite soft tube tooth shape cross section resistance to compression armor, it is characterized in that: it adopts profile shapes to twine interlocking and forms, the cross section of described profile shapes is tooth shape cross section, this cross section comprises a girder, described girder comprises the first diapire and the second diapire along its length direction, the two ends of described the second diapire have been wholely set respectively an end dentation structure to the same side, be arranged at intervals with two middle part dentation structures on described the second diapire between two described end dentation structures; Described middle part dentation structure is to forming the end sunk area between the described end dentation structure that is adjacent; Form the medial recess zone between two described middle part dentation structures; Two described end dentation structures are all crooked to the same side, and include an outer side wall, a madial wall and an increment face; The outer side wall of described end dentation structure adopts the arc angle of attachment to connect with being connected of the first diapire of described girder; The increment face of described end dentation structure and described outer side wall are connected with madial wall to be connected and are also all adopted the arc angle of attachment to connect; The madial wall of described end dentation structure connects with also adopting the arc angle of attachment being connected of the second diapire of described girder; Two described middle part dentation structures include two sidewalls and an increment face; The increment face of described middle part dentation structure adopts the arc angle of attachment to connect with being connected of two described sidewalls; Two described sidewalls with being connected of the second diapire of described girder also adopt the arc angle of attachment to connect; Insert the middle part dentation structure of an adjacent described profile shapes in the end sunk area of described profile shapes, and have certain interval; Insert the end dentation structure of two adjacent described profile shapes in the medial recess zone of described profile shapes, and have certain interval; Adjacent described profile shapes is engaged.
The width of the tooth root section of described end dentation structure and middle part dentation structure and the ratio range of described profile shapes cross-sectional length are 0.1～0.15.
The tooth root section of described end dentation structure and middle part dentation structure is 0.3～0.4 to the height of increment face and the ratio range of described profile shapes cross-sectional width.
The cross-sectional width of described profile shapes and the ratio range of cross-sectional length are 0.3～0.45.
The outer side wall of two described end dentation structures is curved, and the radius of this described arc is 2～4 times of described profile shapes cross-sectional width.
Described profile shapes is the steel wire with tooth shape cross section; The winding angle of described profile shapes and composite soft tube tubular axis is close to 90 degree.
The present invention is owing to taking above technological scheme, it has the following advantages: 1, profile shapes of the present invention cross section is tooth shape section form, this cross section comprises four dentation structures and three sunk areas, the dentation structure of profile shapes is positioned at the sunk area of adjacent different section bar after twining, and has certain interval, therefore, the adjacent different section bar is engaged, the interior pressure of inside liner is converted into the pulling force of resistance to compression armor steel wire, the ability of pressing in the opposing is provided, simultaneously owing to mutually having certain gap between the cross section of interlock, when bending, composite soft tube can make the mutually motion in certain interval of resistance to compression armor profile shapes adjacent sections, the resistance to compression armor does not bear moment of flexure, has good flexibility simultaneously yet.2, because in the prior art, make the crooked flexible reinforced of resistance to compression armor, only has the gap that increases resistance to compression armor adjacent sections, but the creep compliance of inside liner is increased, and the present invention is set to homotropous arcuate structure by two ends, profile shapes cross section sidewall, and the radius of this arc is 2～4 times of profile shapes cross-sectional width, therefore, can in the situation that do not increase the inside liner creep compliance, make the crooked flexibility of resistance to compression armor that remarkable enhancing be arranged.The present invention can strengthen the crooked flexible of resistance to compression armor, and can effectively prevent mutually skidding off of resistance to compression armor adjacent sections in the situation that composite soft tube inside liner creep compliance is identical, therefore, can be widely used in kind of the structure of ocean composite soft tube and arrange.
Description of drawings
Fig. 1 is composite hose structure schematic diagram of the present invention
Fig. 2 is composite soft tube resistance to compression armor schematic cross-section of the present invention
Fig. 3 is composite soft tube resistance to compression armor profile shapes adjacent sections interlocking 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 comprises framework layer 1, inside liner 2, resistance to compression armor 3, the first abrasionproof extrusion molding layer 4, the first tension armor 5, the second abrasionproof extrusion molding layer 6, the second tension armor 7, the 3rd abrasionproof extrusion molding layer 8, thermal insulation layer 9, external coating 10 successively from the internal layer to the skin.Wherein, framework layer 1 is formed by the interlocking steel strip winding, is used for preventing the conquassation of inside liner 2, framework layer 1 interior conveying fluid; Inside liner 2 is for carrying the sealing layer of fluid, and inside liner 2 outer winding one decks also can twine Multi-layer compressive armor 3, and resistance to compression armor 3 is non-adhesive layer, the mutually changing of the relative positions of interlayer.External coating 7 can prevent effectively that the fluid around the composite soft tube from flowing to armor.
As shown in Figure 2, resistance to compression armor 3 of the present invention twines interlocking by profile shapes 11 and forms, and the winding angle of profile shapes 11 and composite soft tube tubular axis is close to 90 degree.The cross section of profile shapes 11 of the present invention is tooth shape cross section, this cross section comprises the girder 12 of a strip, girder 12 comprises the first diapire 13 and the second diapire 14 along its length direction, on being wholely set respectively the second diapire 14 between 15, two end dentation structures 15 of an end dentation structure to the same side, the two ends of the second diapire 14 are arranged at intervals with two middle part dentation structures 16.Middle part dentation structure 16 is to forming end sunk area 17 between the end dentation structure 15 that is adjacent; Form medial recess zone 18 between two middle part dentation structures 16; The width in medial recess zone 18 is the twice of end sunk area 17 width.Can hold a middle part dentation structure 16 in the end sunk area 17, and have certain interval; Can hold two end dentation structures 15 in the medial recess zone 18, and have certain interval.
As shown in Figure 2, the structural similarity of two end dentation structures 15 of the present invention includes an outer side wall 19, a madial wall 20 and an increment face 21.Because two end dentation structures 15 are all crooked to the same side, therefore, the outer side wall 19 of two end dentation structures 15 is curved.Because therefore the structural similarity of two end dentation structures 15, now describes as an example of one of them example.The outer side wall 19 of end dentation structure 15 connects with the employing arc angle of attachment 22 that is connected of the first diapire 13 of girder 12; Being connected that the increment face 21 of end dentation structure 15 and outer side wall 19 are connected with madial wall also all adopts arc angle of attachment 22 to connect; The madial wall 20 of end dentation structure 15 connects with also adopting arc angle of attachment 22 being connected of the second diapire 14 of girder 12.
As shown in Figure 2, the structural similarity of two middle part dentation structures 16 of the present invention includes two sidewalls 23 and an increment face 24, now describes as an example of one of them example.Being connected of increment face 24 and two sidewalls 23 of middle part dentation structure 16 adopts arc angle of attachment 22 to connect, two sidewalls 23 with being connected of the second diapire 14 of girder 12 also adopt 22 connections of arc angle of attachment.
In the above-mentioned example, the ratio range of the width of the tooth root section of end dentation structure 15 and middle part dentation structure 16 and profile shapes 11 cross-sectional length is 0.1～0.15.
In the above-mentioned example, the tooth root section of end dentation structure 15 and middle part dentation structure 16 is 0.3～0.4 to the height of increment face and the ratio range of profile shapes 11 cross-sectional widths.
In the above-mentioned example, the cross-sectional width of profile shapes 11 and the ratio range of cross-sectional length are 0.3～0.45, can improve the stability in cross section, and reduce the stress distribution in cross section.
In the above-mentioned example, the outer side wall 19 of two end dentation structures 15 is curved, and the radius of this arc is 2～4 times of profile shapes 11 cross-sectional widths.
In the above-mentioned example, twining the profile shapes 11 that forms resistance to compression armor 3 is steel wire, and steel wire generally adopts carbon steel, and the cross section of profile shapes 11 is tooth shape cross section, forms resistance to compression armor 3 by the winding to profile shapes 11.
The winding, molding method of resistance to compression armor 3 of the present invention is: profile shapes 11 is steel wire, and the cross section is tooth shape cross section, and this cross section comprises two end dentation structures 15, two middle part dentation structures 16, two end sunk areas 17 and a medial recess zone 18; Profile shapes 11 is wrapped in the periphery of inside liner 2, form resistance to compression armor 3, adjacent different section bar 11 cross sections are engaged after twining, namely as shown in Figure 3, two end dentation structures 15 of one of them profile shapes 11 are corresponding 18, two middle parts, the medial recess zone dentation structure 16 that is positioned at two the adjacent profile shapes 11 corresponding end sunk area 17 that is positioned at two adjacent profile shapes 11 respectively respectively.The width in medial recess zone 18 is the twice of end sunk area 17 width.A middle part of end sunk area 17 interior insertions dentation structure 16, and have certain interval; Two end dentation structures 15 of medial recess zone 18 interior insertions, and have certain interval.Because dentation structure is positioned at sunk area, and has certain gap, therefore, when bending, composite soft tube can make the mutually motion in certain interval of resistance to compression armor 3 profile shapes adjacent sections; Simultaneously, the mutual interlock of two pairs of dentation structures by adjacent different section bar 11 cross sections can reduce the possibility that profile shapes 11 adjacent sections skid off mutually, and can reduce near the stress distribution the dentation structure.
The various embodiments described above only are used for explanation the present invention, and wherein the structure of each parts, Placement etc. all can change to some extent, and every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Claims (10)
1. composite soft tube tooth shape cross section resistance to compression armor, it is characterized in that: it adopts profile shapes to twine interlocking and forms, the cross section of described profile shapes is tooth shape cross section, this cross section comprises a girder, described girder comprises the first diapire and the second diapire along its length direction, the two ends of described the second diapire have been wholely set respectively an end dentation structure to the same side, be arranged at intervals with two middle part dentation structures on described the second diapire between two described end dentation structures; Described middle part dentation structure is to forming the end sunk area between the described end dentation structure that is adjacent; Form the medial recess zone between two described middle part dentation structures;
Two described end dentation structures are all crooked to the same side, and include an outer side wall, a madial wall and an increment face; The outer side wall of described end dentation structure adopts the arc angle of attachment to connect with being connected of the first diapire of described girder; The increment face of described end dentation structure and described outer side wall are connected with madial wall to be connected and are also all adopted the arc angle of attachment to connect; The madial wall of described end dentation structure connects with also adopting the arc angle of attachment being connected of the second diapire of described girder;
Two described middle part dentation structures include two sidewalls and an increment face; The increment face of described middle part dentation structure adopts the arc angle of attachment to connect with being connected of two described sidewalls; Two described sidewalls with being connected of the second diapire of described girder also adopt the arc angle of attachment to connect;
Insert the middle part dentation structure of an adjacent described profile shapes in the end sunk area of described profile shapes, and have certain interval; Insert the end dentation structure of two adjacent described profile shapes in the medial recess zone of described profile shapes, and have certain interval; Adjacent described profile shapes is engaged.
2. a kind of composite soft tube tooth shape cross section resistance to compression armor as claimed in claim 1, it is characterized in that: the width of the tooth root section of described end dentation structure and middle part dentation structure and the ratio range of described profile shapes cross-sectional length are 0.1～0.15.
3. a kind of composite soft tube tooth shape cross section resistance to compression armor as claimed in claim 1, it is characterized in that: the tooth root section of described end dentation structure and middle part dentation structure is 0.3～0.4 to the height of increment face and the ratio range of described profile shapes cross-sectional width.
4. a kind of composite soft tube tooth shape cross section resistance to compression armor as claimed in claim 2, it is characterized in that: the tooth root section of described end dentation structure and middle part dentation structure is 0.3～0.4 to the height of increment face and the ratio range of described profile shapes cross-sectional width.
5. as claimed in claim 1 or 2 or 3 or 4 a kind of composite soft tube tooth shape cross section resistance to compression armor, it is characterized in that: the cross-sectional width of described profile shapes and the ratio range of cross-sectional length are 0.3～0.45.
6. as claimed in claim 1 or 2 or 3 or 4 a kind of composite soft tube tooth shape cross section resistance to compression armor, it is characterized in that: the outer side wall of two described end dentation structures is curved, and the radius of this described arc is 2～4 times of described profile shapes cross-sectional width.
7. a kind of composite soft tube tooth shape cross section resistance to compression armor as claimed in claim 5, it is characterized in that: the outer side wall of two described end dentation structures is curved, and the radius of this described arc is 2～4 times of described profile shapes cross-sectional width.
8. such as claim 1 or 2 or 3 or 4 or 7 described a kind of composite soft tube tooth shape cross section resistance to compression armors, it is characterized in that: described profile shapes is the steel wire with tooth shape cross section; The winding angle of described profile shapes and composite soft tube tubular axis is close to 90 degree.
9. a kind of composite soft tube tooth shape cross section resistance to compression armor as claimed in claim 5, it is characterized in that: described profile shapes is the steel wire with tooth shape cross section; The winding angle of described profile shapes and composite soft tube tubular axis is close to 90 degree.
10. a kind of composite soft tube tooth shape cross section resistance to compression armor as claimed in claim 6, it is characterized in that: described profile shapes is the steel wire with tooth shape cross section; The winding angle of described profile shapes and composite soft tube tubular axis is close to 90 degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430888.3A CN102927383B (en) | 2012-11-01 | 2012-11-01 | Tooth-shaped-section pressure-resisting armor layer for composite hoses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430888.3A CN102927383B (en) | 2012-11-01 | 2012-11-01 | Tooth-shaped-section pressure-resisting armor layer for composite hoses |
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| CN102927383A true CN102927383A (en) | 2013-02-13 |
| CN102927383B CN102927383B (en) | 2014-11-05 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299317A (en) * | 2014-07-10 | 2016-02-03 | 中国石油大学(北京) | Pipe-in-pipe buckle arrestor based on dentate section deformation element |
| CN105570536A (en) * | 2016-01-21 | 2016-05-11 | 中国石油大学(北京) | Deepwater pipe in pipe buckle arrestor based on deformed element with Y-type section |
| CN107102410A (en) * | 2016-12-30 | 2017-08-29 | 海隆石油工业集团有限公司 | A kind of deep sea vertical pipe tension armor of optical fiber built-in |
| CN108527807A (en) * | 2018-04-04 | 2018-09-14 | 中国石油大学(北京) | A kind of nonmetal flexible pipe and its manufacturing method |
| CN110513548A (en) * | 2019-08-29 | 2019-11-29 | 德璐氏工业技术无锡有限公司 | A flexible hose |
| CN115614561A (en) * | 2021-07-12 | 2023-01-17 | 无棣海忠软管制造有限公司 | A high temperature resistant non-bonded flexible composite pipeline and its manufacturing method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299317A (en) * | 2014-07-10 | 2016-02-03 | 中国石油大学(北京) | Pipe-in-pipe buckle arrestor based on dentate section deformation element |
| CN105570536A (en) * | 2016-01-21 | 2016-05-11 | 中国石油大学(北京) | Deepwater pipe in pipe buckle arrestor based on deformed element with Y-type section |
| CN107102410A (en) * | 2016-12-30 | 2017-08-29 | 海隆石油工业集团有限公司 | A kind of deep sea vertical pipe tension armor of optical fiber built-in |
| CN108527807A (en) * | 2018-04-04 | 2018-09-14 | 中国石油大学(北京) | A kind of nonmetal flexible pipe and its manufacturing method |
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| CN108527807B (en) * | 2018-04-04 | 2020-03-27 | 中国石油大学(北京) | A kind of non-metallic flexible pipe and its manufacturing method |
| US11635157B2 (en) | 2018-04-04 | 2023-04-25 | China Merchants Heavy Industry (Jiangsu) Co., Ltd. | Non-metallic flexible pipe and manufacturing method thereof |
| CN110513548A (en) * | 2019-08-29 | 2019-11-29 | 德璐氏工业技术无锡有限公司 | A flexible hose |
| CN115614561A (en) * | 2021-07-12 | 2023-01-17 | 无棣海忠软管制造有限公司 | A high temperature resistant non-bonded flexible composite pipeline and its manufacturing method |
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|---|---|
| CN102927383B (en) | 2014-11-05 |
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