CN206770817U - A kind of two-coat structure non-adherent flexible pipe - Google Patents
A kind of two-coat structure non-adherent flexible pipe Download PDFInfo
- Publication number
- CN206770817U CN206770817U CN201720573548.4U CN201720573548U CN206770817U CN 206770817 U CN206770817 U CN 206770817U CN 201720573548 U CN201720573548 U CN 201720573548U CN 206770817 U CN206770817 U CN 206770817U
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- China
- Prior art keywords
- flexible pipe
- layer
- adherent
- coat structure
- compressive resistance
- Prior art date
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- 230000001464 adherent effect Effects 0.000 title claims abstract description 33
- 239000010410 layer Substances 0.000 claims abstract description 42
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 239000011241 protective layer Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 claims description 4
- 229920001179 medium density polyethylene Polymers 0.000 claims description 4
- 239000004701 medium-density polyethylene Substances 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000013535 sea water Substances 0.000 abstract description 3
- 239000011247 coating layer Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model provides a kind of two-coat structure non-adherent flexible pipe; between the tension armor and external coating of traditional non-adherent flexible pipe; increase clad and counterweight protective layer/critical external compressive resistance layer among one layer respectively from inside to outside; the flexible pipe being combined between each layer by non-adherent form, the i.e. so-called two-coat structure non-adherent flexible pipe containing middle clad, counterweight protective layer/critical external compressive resistance layer and external coating.This non-adherent flexible pipe structure containing double-coating layer; even if external coating is damaged; also internal counterweight protective layer/critical external compressive resistance layer protection flexible pipe internal structure; middle clad is prevented from seawater and enters inside; prevent the corrosion failure of armor; equivalent to the protection jacket that bilayer has been put on to flexible pipe, the ability for making flexible pipe substantially increase anti-outside mechanical failure in being applied in the later stage, the application life and reliability of pipeline ensure that.
Description
Technical field
It the utility model is related to a kind of petroleum pipeline, more particularly to a kind of new non-adherent flexible pipe.
Background technology
In recent years, non-adherent flexible pipe in ocean is relative to conventional steel, and because flexible, continuous length is grown, corrosion resistance
It is good, it is easy for installation, it is recyclable the advantages that, be widely applied to the conveying or mixed defeated of seabed oil, gas and water.Existing ocean
Flexible pipe typically uses sandwich construction, generally comprises metallic framework layer, keeps the complete inner liner of internal liquid, resistance to compression metal armour
Layer is filled, two layers or four layers of tension armor, there is the external coating of sealing and protective effect.
But because flexible pipe clad is plastic layer, once fishing boat casts anchor, the external mechanical influence such as junk causes outer cladding
Layer damage, seawater enter the internal corrosion that will result in armor, and armor not only influences non-once damage or failure occurs
The service life of flexible pipe is bonded, huge loss can be also caused to oil gas field, environment is polluted, brings serious social influence.
The content of the invention
The utility model is in view of the deficienciess of the prior art, propose a kind of two-coat structure non-adherent flexible pipe.
The utility model is realized by following technical scheme：
A kind of two-coat structure non-adherent flexible pipe, in the tension armor and external coating of traditional non-adherent flexible pipe
Between, increase clad and counterweight protective layer/critical external compressive resistance layer among one layer respectively from inside to outside, pass through non-adherent shape between each layer
The flexible pipe that formula is combined, i.e. the two-coat knot containing middle clad, counterweight protective layer/critical external compressive resistance layer and external coating
Structure non-adherent flexible pipe.
The middle clad and external coating are by thermoplastic PA, HDPE, MDPE or TPE extrusion moulding.
Counterweight protective layer/critical external compressive resistance the layer can be entwined by steel band or deformed steel.
The inner tube of traditional non-adherent flexible pipe is free from the plain tube of casing play or the rough pipe with casing play.
It can increase one or more layers heat-insulation layer between the tension armor and the middle clad.
The beneficial effects of the utility model：The utility model provides a kind of non-adherent flexible pipe structure of two-coat,
Between the tension armor and external coating of traditional non-adherent flexible pipe, increase clad and counterweight protective layer among one layer/
Critical external compressive resistance layer.This non-adherent flexible pipe structure containing double-coating layer, even if external coating is damaged, there is internal match somebody with somebody
Weight protective layer/critical external compressive resistance layer protection flexible pipe internal structure, middle clad are prevented from seawater and enter inside, prevent armouring
The corrosion failure of layer, equivalent to the protection jacket for having put on bilayer to flexible pipe, flexible pipe is set to be greatly improved in being applied in the later stage
The ability of anti-outside mechanical failure, ensure that the application life and reliability of pipeline.
The utility model is described further with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the two-coat structure non-adherent flexible pipe containing casing play；
Fig. 2 is a kind of structural representation for the two-coat structure non-adherent flexible pipe for not containing casing play；
Wherein：1- casing plays；2- inner pressuring sealing layers；3- resistance to compression armors；4- tension armors；Clad among 5-；6-
Counterweight protective layer/critical external compressive resistance layer；7- external coatings.
Embodiment
Below in conjunction with the accompanying drawings and example, the utility model is described in detail：
Embodiment 1：As shown in figure 1, a kind of two-coat structure non-adherent flexible pipe, includes middle clad 5 and counterweight
Protective layer/critical external compressive resistance layer 6.The non-adherent flexible pipe from inside to outside successively include interlocked by stainless steel belt formed casing play 1,
The inner pressuring sealing layer 2 of the extrusion moulding such as thermoplastic PA, HDPE, PVDF or XLPE, wound by steel band or deformed steel it is certain
The resistance to compression armor 3 of thickness, the tension armor 4 by band steel winding, thermoplastic PA, HDPE, MDPE or TPE extrusion moulding
Middle clad 5, wound by steel band or deformed steel certain thickness counterweight protective layer/critical external compressive resistance layer 6, thermoplastic PA,
The external coating 7 of HDPE, MDPE or TPE extrusion moulding, every layer is combined by non-adherent form.
As another embodiment, as shown in Fig. 2 a kind of two-coat structure non-adherent flexible pipe, includes tundish
Coating 5 and counterweight protective layer/critical external compressive resistance layer 6.The non-adherent flexible pipe includes inner pressuring sealing layer 2, resistance to compression armour successively from inside to outside
Fill layer 3, tension armor 4, middle clad 5, counterweight protective layer/critical external compressive resistance layer 6 and external coating 7.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations with
Modification, in the range of still falling within technical solutions of the utility model.
Claims (5)
1. a kind of two-coat structure non-adherent flexible pipe, it is characterised in that in the tension armor of traditional non-adherent flexible pipe
Between external coating, increase clad and counterweight protective layer/critical external compressive resistance layer among one layer respectively from inside to outside, lead between each layer
The flexible pipe that non-adherent form is combined is crossed, i.e., containing middle clad, counterweight protective layer/critical external compressive resistance layer and external coating
Two-coat structure non-adherent flexible pipe.
2. a kind of two-coat structure non-adherent flexible pipe according to claim 1, it is characterised in that coated among described
Layer and the external coating are by thermoplastic PA, HDPE, MDPE or TPE extrusion moulding.
A kind of 3. two-coat structure non-adherent flexible pipe according to claim 1, it is characterised in that the counterweight protection
Layer/critical external compressive resistance layer is entwined by steel band or deformed steel.
4. a kind of two-coat structure non-adherent flexible pipe according to claim 1, it is characterised in that the tradition is non-stick
The inner tube of knot flexible pipe is free from the plain tube of casing play or the rough pipe containing casing play.
5. a kind of two-coat structure non-adherent flexible pipe according to claim 1, it is characterised in that in the tension armour
It can increase one or more layers heat-insulation layer between dress layer and the middle clad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720573548.4U CN206770817U (en) | 2017-05-23 | 2017-05-23 | A kind of two-coat structure non-adherent flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720573548.4U CN206770817U (en) | 2017-05-23 | 2017-05-23 | A kind of two-coat structure non-adherent flexible pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770817U true CN206770817U (en) | 2017-12-19 |
Family
ID=60641413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720573548.4U Active CN206770817U (en) | 2017-05-23 | 2017-05-23 | A kind of two-coat structure non-adherent flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644492A (en) * | 2018-05-03 | 2018-10-12 | 宁波欧佩亚海洋工程装备有限公司 | A kind of resistance to ultralow temperature steel strip reinforced thermoplastic composite tube |
| 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 |
-
2017
- 2017-05-23 CN CN201720573548.4U patent/CN206770817U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644492A (en) * | 2018-05-03 | 2018-10-12 | 宁波欧佩亚海洋工程装备有限公司 | A kind of resistance to ultralow temperature steel strip reinforced thermoplastic composite tube |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190521 Address after: Binzhou Port West Port Economic Park, Wudi County, Binzhou City, Shandong Province Patentee after: Wudi Haizhong Hose Manufacturing Co., Ltd. Address before: 300384 Six Floors, Block E, Nanda Science Park, No. 1 Gonghua Road, Huayuan Industrial Park, Nankai District, Tianjin Patentee before: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |