CN215568543U - High-pressure adhesive thermoplastic composite pipe suitable for submarine oil-gas medium transportation - Google Patents
High-pressure adhesive thermoplastic composite pipe suitable for submarine oil-gas medium transportation Download PDFInfo
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- CN215568543U CN215568543U CN202122235711.5U CN202122235711U CN215568543U CN 215568543 U CN215568543 U CN 215568543U CN 202122235711 U CN202122235711 U CN 202122235711U CN 215568543 U CN215568543 U CN 215568543U
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Abstract
The utility model discloses a high-pressure bonding thermoplastic composite pipe suitable for submarine oil-gas medium transportation, which sequentially comprises an inner liner, an acid-alkali resistant layer, a reinforcing layer, a tensile layer, an anti-permeation layer, a waterproof layer and an outer protective layer from inside to outside, wherein the tensile layer is matched with the reinforcing layer, so that a pipeline has lower bending rigidity and higher tensile strength, the pressure bearing and tensile strength of the pipeline are effectively improved, and the problem that a single material of the reinforcing layer of the thermoplastic composite pipe is not suitable for high-pressure medium transportation can be effectively solved; the pipeline has the corrosion resistance of resisting a permeation medium of an annular space through the acid and alkali resistant layer, and the effectiveness of the tensile layer is further improved; the outer sealing performance of the pipeline is effectively improved by matching the anti-seepage layer with the waterproof layer.
Description
Technical Field
The utility model relates to a composite pipe, in particular to a high-pressure bonding thermoplastic composite pipe suitable for submarine oil-gas medium transportation, and belongs to the technical field of marine oil-gas medium transportation.
Background
The submarine pipeline is a main carrier for marine oil and gas transmission, the thermoplastic composite pipeline is used as an upgrading and updating product of a steel pipe, has the characteristics of high flexibility, low construction cost, strong corrosion resistance, strong terrain adaptability and reusability, is suitable for various pipeline applications such as mixed transmission, oil transmission, gas transmission, water injection and the like of offshore oil and gas exploitation, and at present, more and more oil field development can consider adopting the thermoplastic composite pipeline to replace the steel pipe, the thermoplastic composite pipeline is a pipeline which is formed by using thermoplastic polymer materials as inner and outer pipe layer bodies and using metal or nonmetal as a reinforcing layer and has related medium transmission functions such as oil, gas and water and the like and is compounded by multiple materials, because the thermoplastic composite pipeline is convenient and quick to install compared with the steel pipe, if the thermoplastic composite pipeline is used to replace the steel pipe in the oil field development, a large amount of expense for offshore construction can be saved.
The reinforced layer is made of non-metal material such as fiber or belt or metal material such as metal wire or belt, and its pressure bearing and tension resisting effect is limited by single material selection, so that it is difficult to meet the conveying requirement of high pressure medium.
The application of the patent just provides a high-pressure bonding thermoplastic composite pipe suitable for submarine oil and gas medium transportation under the background.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a high-pressure bonding thermoplastic composite pipe suitable for conveying oil and gas media on the seabed.
The utility model is realized by the following technical scheme:
a high-pressure adhesive thermoplastic composite pipe suitable for the submarine oil-gas medium transportation comprises a lining layer, an acid-alkali resistant layer, a reinforcing layer, a tensile layer, an anti-permeation layer, a waterproof layer and an outer protective layer;
the lining layer is positioned at the innermost part of the composite pipe and is made of any one of high-density polyethylene and medium-density polyethylene materials, and the thickness of the lining layer is adjustable within the range of 6-10 mm;
the acid and alkali resistant layer is wound on the outer side of the inner liner layer and is made of polyester fiber materials, and the thickness of the acid and alkali resistant layer is adjustable within the range of 4-6 mm;
the enhancement layer is wound on the outer side of the acid and alkali resistant layer and is made of glass fiber band materials, and the thickness of the enhancement layer is adjustable within the range of 5-10 mm;
the tensile layer is wound on the outer side of the enhancement layer and is formed by spirally and alternately winding high-strength carbon steel wires, the diameter of the carbon steel wires of the tensile layer is adjustable within the range of 1-1.5 mm, the axial winding angle of the tensile layer is adjustable within the range of 65-85 degrees, and the thickness of the tensile layer is adjustable within the range of 3-7 mm;
the anti-permeation layer is wound on the outer side of the tensile layer, the anti-permeation layer is made of ethylene-vinyl alcohol copolymer materials through extrusion molding, and the thickness of the anti-permeation layer is adjustable within the range of 1.5-2.5 mm;
the waterproof layer is wound on the outer side of the anti-seepage layer and is made of medium-density polyethylene materials, and the thickness of the waterproof layer is adjustable within the range of 1.5-3.5 mm;
the outer protection layer is wound on the outer side of the waterproof layer and is made of any one of high-density polyethylene, medium-density polyethylene and heat-resistant polyethylene materials, and the thickness of the outer protection layer is adjustable within the range of 5.5-8 mm;
preferably, an elastic filling layer is arranged between the inner liner layer and the acid and alkali resistant layer, the elastic filling layer is made of thermoplastic polyester elastomer materials, and the thickness of the elastic filling layer is adjustable within the range of 1-2 mm.
The utility model has the beneficial effects that:
the high-pressure bonding thermoplastic composite pipe suitable for the submarine oil-gas medium transportation, disclosed by the utility model, has the advantages that the tensile layer is matched with the reinforcing layer, so that the pipeline has lower bending rigidity and higher tensile strength, and the pressure bearing and tensile strength of the pipeline are effectively improved; the pipeline has the corrosion resistance of resisting a permeation medium of an annular space through the acid and alkali resistant layer, and the effectiveness of the tensile layer is further improved; the outer sealing performance of the pipeline is effectively improved by matching the anti-seepage layer with the waterproof layer.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structural elastic filling layer of the present invention.
In the figure: 1. an inner liner layer; 2. an enhancement layer; 3. a tensile layer; 4. an anti-permeation layer; 5. a waterproof layer; 6. an acid and alkali resistant layer; 7. an outer protective layer; 9. an elastic filling layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a high-pressure bonded thermoplastic composite pipe suitable for transporting a submarine oil-gas medium comprises an inner liner layer 1, an acid and alkali resistant layer 6, a reinforcing layer 2, a tensile layer 3, an anti-permeation layer 4, a waterproof layer 5 and an outer protective layer 7; the inner liner 1 is located at the innermost part of the composite pipe, the inner liner 1 is made of any one of high-density polyethylene and medium-density polyethylene materials, and the thickness of the inner liner 1 is adjustable within the range of 6-10 mm; the acid and alkali resistant layer 6 is wound on the outer side of the inner liner layer 1, the acid and alkali resistant layer 6 is made of polyester fiber materials, and the thickness of the acid and alkali resistant layer 6 is adjustable within the range of 4-6 mm; the enhancement layer 2 is wound on the outer side of the acid and alkali resistant layer 6, the enhancement layer 2 is made of glass fiber band materials, and the thickness of the enhancement layer 2 can be adjusted within the range of 5-10 mm; the tensile layer 3 is wound on the outer side of the enhancement layer 2, the tensile layer 3 is formed by spirally and alternately winding high-strength carbon steel wires, the diameter of the carbon steel wires of the tensile layer 3 is adjustable within the range of 1-1.5 mm, the axial winding angle of the tensile layer 3 is adjustable within the range of 65-85 degrees, and the thickness of the tensile layer 3 is adjustable within the range of 3-7 mm; the anti-permeation layer 4 is wound on the outer side of the tensile layer 3, the anti-permeation layer 4 is made of ethylene-vinyl alcohol copolymer materials through extrusion molding, and the thickness of the anti-permeation layer 4 can be adjusted within the range of 1.5-2.5 mm; the waterproof layer 5 is wound on the outer side of the anti-seepage layer 4, the waterproof layer 5 is made of medium-density polyethylene materials, and the thickness of the waterproof layer 8 is adjustable within the range of 1.5-3.5 mm; the outer protection layer 7 is wound on the outer side of the waterproof layer 5, the outer protection layer 7 is made of any one of high-density polyethylene, medium-density polyethylene and heat-resistant polyethylene materials, and the thickness of the outer protection layer 7 can be adjusted within the range of 5.5-8 mm;
in this embodiment, an elastic filling layer 9 is disposed between the inner liner layer 1 and the acid and alkali resistant layer 6, the elastic filling layer 9 is made of a thermoplastic polyester elastomer material, and the thickness of the elastic filling layer 9 is adjustable within a range of 1-2 mm.
The working principle of the utility model is as follows: the tensile layer 3 is matched with the reinforcing layer 2, so that the pipeline has lower bending rigidity and higher tensile strength, and the pressure bearing and tensile strength of the pipeline are effectively improved; the pipeline has the corrosion resistance of a permeation medium of an annular space through the acid and alkali resistant layer 6, and the effectiveness of the tensile layer 3 is further improved; the external sealing performance of the pipeline is effectively improved by matching the anti-seepage layer 4 with the waterproof layer 5.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (2)
1. The high-pressure bonding thermoplastic composite pipe suitable for the seabed oil-gas medium transportation is characterized by comprising an inner liner (1), an acid-alkali resistant layer (6), a reinforcing layer (2), a tensile layer (3), an anti-seepage layer (4), a waterproof layer (5) and an outer protective layer (7);
the inner liner (1) is located at the innermost part of the composite pipe, the inner liner (1) is made of any one of high-density polyethylene and medium-density polyethylene materials, and the thickness of the inner liner (1) is adjustable within the range of 6-10 mm;
the acid and alkali resistant layer (6) is wound on the outer side of the inner liner layer (1), the acid and alkali resistant layer (6) is made of polyester fiber materials, and the thickness of the acid and alkali resistant layer (6) is adjustable within the range of 4-6 mm;
the reinforcing layer (2) is wound on the outer side of the acid-base resistant layer (6), the reinforcing layer (2) is made of glass fiber band materials, and the thickness of the reinforcing layer (2) is adjustable within the range of 5-10 mm;
the tensile layer (3) is wound on the outer side of the enhancement layer (2), the tensile layer (3) is formed by spirally and alternately winding high-strength carbon steel wires, the diameter of the carbon steel wires of the tensile layer (3) is adjustable within the range of 1-1.5 mm, the axial winding angle of the tensile layer (3) is adjustable within the range of 65-85 degrees, and the thickness of the tensile layer (3) is adjustable within the range of 3-7 mm;
the anti-seepage layer (4) is wound on the outer side of the tensile layer (3), the anti-seepage layer (4) is made of ethylene-vinyl alcohol copolymer materials through extrusion molding, and the thickness of the anti-seepage layer (4) is adjustable within the range of 1.5-2.5 mm;
the waterproof layer (5) is wound on the outer side of the anti-seepage layer (4), the waterproof layer (5) is made of medium-density polyethylene materials, and the thickness of the waterproof layer (5) is adjustable within the range of 1.5-3.5 mm;
the waterproof layer is characterized in that the outer protection layer (7) is wound on the outer side of the waterproof layer (5), the outer protection layer (7) is made of any one of high-density polyethylene, medium-density polyethylene and heat-resistant polyethylene materials, and the thickness of the outer protection layer (7) is adjustable within the range of 5.5-8 mm.
2. The high-pressure bonding thermoplastic composite pipe suitable for the submarine oil-gas medium transportation according to claim 1, wherein an elastic filling layer (9) is arranged between the inner liner layer (1) and the acid-base resistant layer (6), the elastic filling layer (9) is made of a thermoplastic polyester elastomer material, and the thickness of the elastic filling layer (9) is adjustable within a range of 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122235711.5U CN215568543U (en) | 2021-09-15 | 2021-09-15 | High-pressure adhesive thermoplastic composite pipe suitable for submarine oil-gas medium transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122235711.5U CN215568543U (en) | 2021-09-15 | 2021-09-15 | High-pressure adhesive thermoplastic composite pipe suitable for submarine oil-gas medium transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215568543U true CN215568543U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122235711.5U Active CN215568543U (en) | 2021-09-15 | 2021-09-15 | High-pressure adhesive thermoplastic composite pipe suitable for submarine oil-gas medium transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215568543U (en) |
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2021
- 2021-09-15 CN CN202122235711.5U patent/CN215568543U/en active Active
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