Aluminum alloy core high-strength flexible cable for offshore oil platform
Through the aluminum alloy core structure and multi-layer composite design, the problems of heavy weight, high cost and poor mechanical performance of traditional offshore oil platform cables are solved, and low-cost, high-strength, easy to lay and safely operate cables are achieved.
Patent Information
- Application Number
- CN202421651484.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Traditional offshore oil platforms have high procurement costs, heavy weight, poor anti-aging performance, poor mechanical performance and single functions.
It adopts an aluminum alloy core structure, combined with Kevla's high-strength reinforced core, waterproof isolation layer, armor layer and waterproof elastomer polymer shield, designed as a triangular distribution of multiple aluminum alloy cable conductors, filled with polypropylene rope and other materials, plus shielding and water-blocking layers, galvanized steel wire braid, and rubber fixing rings and wear-resistant strips are installed on the outside.
It reduces cable costs, reduces weight, improves mechanical performance and laying convenience, and enhances the safety and tensile performance of system operation.
Smart Images
Figure CN223218016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-strength flexible cable, in particular to a high-strength flexible cable with an aluminum alloy core for offshore oil platforms, belonging to the technical field of cables. Background Art
[0002] Offshore oil platforms are platforms used for offshore and offshore oil production. Crude oil production and daily activities can be carried out on the platform. Offshore oil platforms are offshore work platforms built with steel, concrete or a mixture of both. They are used as places for offshore oil production operations. The structural form of offshore oil platforms varies depending on the shallow sea, deep sea, and the methods of offshore oil and gas gathering and production. Operations on offshore oil platforms require a large amount of electricity and a large number of cables.
[0003] Cables used on offshore oil platforms are typically transmitted from land, then transferred to the platform via power cables used by the ship's electrical equipment. Transformers then convert power to various systems, eliminating the drawbacks of previous generator sets, such as high energy consumption, high noise, and large space requirements. However, traditional offshore platform cable construction typically utilizes twisted tinned soft copper conductors, extruded EPDM insulation, and a neoprene sheath, which is then inspected after extrusion. This cable structure presents drawbacks such as high procurement cost, heavy weight, poor aging resistance, poor mechanical properties, and limited functionality. Utility Model Content
[0004] In view of the defects of the existing technology, the utility model provides a high-strength flexible cable with an aluminum alloy core for offshore oil platforms. The cable has the advantages of low material cost, excellent mechanical properties, easy laying, and high system operation safety.
[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:
[0006] A high-strength flexible cable with an aluminum alloy core for offshore oil platforms comprises a plurality of aluminum alloy cable conductors, wherein a plurality of monofilaments are arranged inside the aluminum alloy cable conductors, and the diameter of each monofilament is not greater than 0.31 mm. The surface of the aluminum alloy cable conductor is fixedly sleeved with an elastomeric high-voltage EPDM insulation layer, a Kevlar high-strength reinforcement core is arranged between the plurality of aluminum alloy cable conductors, the outer side of the plurality of aluminum alloy cable conductors is sleeved with a waterproof isolation layer, the outer side of the waterproof isolation layer is provided with an armor layer, and the outer fixed sleeve of the armor layer is provided with a waterproof elastomeric polymer sheath.
[0007] Furthermore, the plurality of aluminum alloy cable conductors are distributed in a triangular shape inside the waterproof isolation layer, and the Kevlar high-strength reinforcement core is located at the center of the plurality of aluminum alloy cable conductors and fits with the elastomeric high-voltage EPDM insulation layer on the surface of the aluminum alloy cable conductors.
[0008] Furthermore, the interior of the waterproof isolation layer is filled with a filling layer, and the filling layer includes one or more of polypropylene rope, glass fiber rope, asbestos rope, rubber, mineral filler, polystyrene foam, and silicone filler.
[0009] Furthermore, the surface fixing sleeve of the elastic high-voltage EPDM insulation layer is provided with a shielding layer, and the surface fixing sleeve of the waterproof isolation layer is provided with a water-blocking layer.
[0010] Furthermore, the armor layer is composed of galvanized steel wire and super-flexible tensile-resistant strands. The galvanized steel wire is made of low-carbon material, and the super-flexible tensile-resistant strands are made of high-elasticity Kevlar material.
[0011] Furthermore, the galvanized steel wire and the ultra-flexible tensile-resistant strands are evenly mixed and woven and arranged on the surface of the water-blocking layer.
[0012] Furthermore, the waterproof elastomeric polymer protective layer is coated with an anti-corrosion coating, and the anti-corrosion coating is perchlorethylene paint.
[0013] Furthermore, a plurality of rubber fixing rings are fixedly installed on the surface of the waterproof elastomeric polymer protective layer, and rubber anti-wear strips are arranged between the plurality of rubber fixing rings.
[0014] Furthermore, the outer sides of the plurality of rubber anti-wear strips are all configured to be arc-shaped, and the plurality of rubber anti-wear strips are evenly distributed on the outer side of the waterproof elastomer polymer protective layer.
[0015] Furthermore, the shielding layer is made of one or more of aluminum foil, copper foil and semiconductor paper, and the water-blocking layer is made of high-molecular polyethylene material.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] The present application can effectively reduce the cost and weight of cables by setting up aluminum alloy cable conductors, elastomer high-voltage EPDM insulation layer, Kevlar high-strength reinforcement core, waterproof isolation layer, armor layer and waterproof elastomer polymer sheath; the Kevlar high-strength reinforcement core made of Kevlar fiber is set between multiple aluminum alloy cable conductors as a central reinforcement structure. The tensile strength of the Kevlar high-strength reinforcement core can reach about times that of steel, which can greatly increase the overall tensile strength of the aluminum alloy cable conductor. Because it is between multiple aluminum alloy cable conductors, it does not increase the overall outer diameter of the cable. , which is convenient for laying, can improve construction efficiency, and save laying space at the same time; an elastomeric high-voltage EPDM insulation layer is set on the outside of the aluminum alloy cable conductor as the cable insulation material, which can increase the thermal extension, tensile strength, insulation resistance and other properties of the aluminum alloy cable conductor; a waterproof elastomeric polymer sheath is designed as the cable sheath layer on the outermost side, which not only ensures that the cable has good bending performance, but also improves the mechanical properties and oil resistance of the cable; under the overall structural design, the cable has the advantages of low overall material cost, excellent mechanical properties, easy laying, and high system operation safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a front view structural diagram of the utility model;
[0020] Figure 3 This is a schematic diagram of the Kevlar high-strength reinforcement core structure of the utility model;
[0021] Figure 4 This is a schematic diagram of the rubber fixing ring (and rubber anti-wear strip structure of the utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the galvanized steel wire and super-flexible tensile rope of the utility model;
[0023] Figure 6 This is a schematic diagram of the water-blocking layer structure of the present utility model.
[0024] In the figure, 1. Aluminum alloy cable conductor; 2. Elastomer high-voltage EPDM insulation layer; 3. Kevlar high-strength reinforcement core; 4. Waterproof isolation layer; 5. Armor layer; 6. Waterproof elastomer polymer sheath; 7. Filling layer; 8. Shielding layer; 9. Water-blocking layer; 10. Galvanized steel wire; 11. Ultra-flexible tensile-resistant strands; 12. Anti-corrosion coating; 13. Rubber fixing ring; 14. Rubber anti-wear strip. DETAILED DESCRIPTION
[0025] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings and specific embodiments.
[0026] like Figures 1-6 As shown, this embodiment provides an embodiment of a high-strength flexible cable with an aluminum alloy core for offshore oil platforms.
[0027] A high-strength flexible cable with an aluminum alloy core for offshore oil platforms comprises a plurality of aluminum alloy cable conductors 1, wherein a plurality of monofilaments are arranged inside the aluminum alloy cable conductors 1, and the diameter of each monofilament is not greater than 0.31 mm. An elastomeric high-voltage EPDM insulation layer 2 is fixedly sleeved on the surface of the aluminum alloy cable conductors 1, a Kevlar high-strength reinforcement core 3 is arranged between the plurality of aluminum alloy cable conductors 1, a waterproof isolation layer 4 is sleeved on the outer side of the plurality of aluminum alloy cable conductors 1, an armor layer 5 is arranged on the outer side of the waterproof isolation layer 4, and a waterproof elastomeric polymer sheath 6 is fixedly sleeved on the outer side of the armor layer 5. By setting up the aluminum alloy cable conductor 1, the elastomer high-voltage EPDM insulation layer 2, the Kevlar high-strength reinforcement core 3, the waterproof isolation layer 4, the armor layer 5 and the waterproof elastomer polymer sheath 6, the cable cost and the cable weight can be effectively reduced; the Kevlar high-strength reinforcement core 3 is set between multiple aluminum alloy cable conductors 1 as a central reinforcement structure. Since the Kevlar high-strength reinforcement core 3 is made of Kevlar fiber, its tensile performance can reach about 100 times that of steel, which can greatly increase the overall tensile performance of the aluminum alloy cable conductor 1. Because it is between multiple aluminum alloy cable conductors 1, it does not increase the cable The overall outer diameter makes laying convenient, improves construction efficiency, and saves laying space at the same time; an elastomeric high-voltage EPDM insulation layer 2 is set on the outside of the aluminum alloy cable conductor 1 as the cable insulation material, which can increase the thermal extension, tensile strength, insulation resistance and other properties of the aluminum alloy cable conductor 1; a waterproof elastomeric polymer sheath 6 is designed on the outermost side as the cable sheath layer, which not only ensures that the cable has good bending performance, but also improves the mechanical properties and oil resistance of the cable; under the overall structural design, the cable has the advantages of low overall material cost, excellent mechanical properties, convenient laying, and high system operation safety.
[0028] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown, multiple aluminum alloy cable conductors 1 are distributed in a triangular shape inside the waterproof isolation layer 4, and the Kevlar high-strength reinforcement core 3 is located at the center of the multiple aluminum alloy cable conductors 1, and is in contact with the elastomeric high-voltage ethylene propylene insulation layer 2 on the surface of the aluminum alloy cable conductor 1; the interior of the waterproof isolation layer 4 is filled with a filling layer 7, and the filling layer 7 includes one or more of polypropylene rope, glass fiber rope, asbestos rope, rubber, mineral filler, polystyrene foam, and silicone filler; the surface fixing sleeve of the elastomeric high-voltage ethylene propylene insulation layer 2 is provided with a shielding layer 8, and the surface fixing sleeve of the waterproof isolation layer 4 is provided with a water-blocking layer 9. By arranging multiple aluminum alloy cable conductors 1 into a triangular distribution in the waterproof isolation layer 4, since the triangular structure is the most stable, the multiple aluminum alloy cable conductors 1 are not easy to shake inside the waterproof isolation layer 4 after the triangular distribution, making the overall structure more stable; the Kevlar high-strength reinforcement core 3 is arranged at the center of the multiple aluminum alloy cable conductors 1, so that the Kevlar high-strength reinforcement core 3 can fit and contact with the multiple aluminum alloy cable conductors 1, not only does not increase the overall outer diameter, but also has a tensile effect on the multiple aluminum alloy cable conductors 1; by filling the filling layer 7 inside the waterproof isolation layer 4, the filling aluminum alloy cable conductor 1 and the waterproof isolation layer 4 are connected. The gaps between the isolation layers 4 make the cable look round as a whole and ensure that multiple aluminum alloy cable conductors 1 will not be misplaced in the waterproof isolation layer 4, thereby maintaining the structural stability of the cable; and the filling layer 7 is made of one or more of polypropylene rope, glass fiber rope, asbestos rope, rubber, mineral filler, polystyrene foam, and silicone filler, which also plays the role of moisture-proof and heat-dissipating, water-proof and flame-retardant; through the setting of the shielding layer 8 and the water-blocking layer 9, the setting of the shielding layer 8 can provide the aluminum alloy cable conductor 1 with good conductivity and flexibility, and effectively shield electromagnetic interference; and the setting of the water-blocking layer 9 can further improve the waterproof performance of the aluminum alloy cable conductor 1.
[0029] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, the armor layer 5 is composed of galvanized steel wire 10 and ultra-flexible tensile strands 11. The galvanized steel wire 10 is made of a low-carbon material; the ultra-flexible tensile strands 11 are made of a highly elastic Kevlar material. The galvanized steel wire 10 and ultra-flexible tensile strands 11 are evenly mixed and woven and arranged on the surface of the water-blocking layer 9. The waterproof elastomeric polymer sheath 6 is coated with an anti-corrosion coating 12, which is a perchlorethylene paint. The armor layer 5 is composed of galvanized steel wire 10 and ultra-flexible tensile strands 11, which can further improve the high tensile strength requirements of cables used in oil platforms. The galvanized steel wire 10 and ultra-flexible tensile strands 11 are mixed and woven on the water-blocking layer 9, so that the armor layer 5 can be fully covered on the water-blocking layer 9, avoiding the occurrence of gaps that lead to uneven distribution of tensile strength. The provision of the anti-corrosion coating 12 can improve the corrosion resistance of the waterproof elastomeric polymer sheath 6, reduce damage caused by seawater, and increase its service life.
[0030] In this embodiment, Figures 1-6 As shown, the surface of the waterproof elastomeric polymer sheath 6 is fixedly mounted with multiple rubber fixing rings 13, and rubber anti-wear strips 14 are arranged between the multiple rubber fixing rings 13. The outer sides of the multiple rubber anti-wear strips 14 are all arranged in an arc shape, and the multiple rubber anti-wear strips 14 are evenly distributed on the outer side of the waterproof elastomeric polymer sheath 6. The shielding layer 8 is made of one or more of aluminum foil, copper foil, and semiconductor paper, and the water-blocking layer 9 is made of high-molecular polyethylene. By providing the rubber fixing rings 13 and the rubber anti-wear strips 14, and by the multiple rubber anti-wear strips 14 being evenly distributed on the waterproof elastomeric polymer sheath 6, an additional layer of anti-wear protection can be added to the outer surface of the waterproof elastomeric polymer sheath 6, reducing direct contact between the waterproof elastomeric polymer sheath 6 and the platform or seabed. The outer sides of the rubber anti-wear strips 14 are arranged in an arc shape to reduce friction and enhance protective performance. The shielding layer 8 is made of one or more of aluminum foil, copper foil, and semiconductor paper to enhance its shielding performance. The water-blocking layer 9 made of high-molecular polyethylene also helps to enhance its waterproof performance.
[0031] In this embodiment, if Figures 1-6 As shown, the working process of the aluminum alloy core high-strength flexible cable for offshore oil platforms provided in this embodiment is as follows:
[0032] A Kevlar high-strength reinforcing core 3 is arranged between multiple aluminum alloy cable conductors 1 as a central reinforcement structure. Since the Kevlar high-strength reinforcing core 3 is made of Kevlar fiber, its tensile strength can reach about 100 times that of steel, which can greatly increase the overall tensile strength of the aluminum alloy cable conductor 1. Because it is located between multiple aluminum alloy cable conductors 1, it does not increase the overall outer diameter of the cable, making it convenient to lay, improving construction efficiency, and saving laying space. An elastomer high-voltage ethylene propylene insulation layer 2 is arranged on the outside of the aluminum alloy cable conductor 1 as a cable insulation material, which can increase the thermal extension, tensile strength, insulation resistance and other properties of the aluminum alloy cable conductor 1. A waterproof elastomer polymer sheath 6 is designed as the cable sheath layer on the outermost side, which not only ensures that the cable has good bending performance, but also improves the mechanical properties and oil resistance of the cable.
[0033] A filling layer 7 is filled inside the waterproof isolation layer 4 to fill the gap between the aluminum alloy cable conductor 1 and the waterproof isolation layer 4, so that the cable as a whole looks round, and ensures that multiple aluminum alloy cable conductors 1 will not be misplaced in the waterproof isolation layer 4, thereby maintaining the structural stability of the cable; the filling layer 7 is made of one or more of polypropylene rope, glass fiber rope, asbestos rope, rubber, mineral filler, polystyrene foam, and silicone filler, and also has the functions of moisture-proof and heat-dissipating, water-proof and flame-retardant; the shielding layer 8 and the water-blocking layer 9 are provided to shield electromagnetic interference and improve the waterproof performance.
[0034] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.
Claims
1. A high-strength flexible cable with an aluminum alloy core for use on offshore oil platforms, characterized by: The invention comprises a plurality of aluminum alloy cable conductors (1), wherein a plurality of monofilaments are arranged inside the aluminum alloy cable conductors (1), and the diameter of each monofilament is not greater than 0.31 mm, the surface of the aluminum alloy cable conductors (1) is fixedly provided with an elastomeric high-voltage ethylene-propylene rubber insulation layer (2), a Kevlar high-strength reinforcement core (3) is provided between the plurality of aluminum alloy cable conductors (1), the outer side of the plurality of aluminum alloy cable conductors (1) is provided with a waterproof isolation layer (4), the outer side of the waterproof isolation layer (4) is provided with an armor layer (5), and the outer side of the armor layer (5) is fixedly provided with a waterproof elastomeric polymer sheath (6).
2. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 1, characterized in that: The plurality of aluminum alloy cable conductors (1) are distributed in a triangular pattern inside the waterproof isolation layer (4); the Kevlar high-strength reinforcement core (3) is located at the center of the plurality of aluminum alloy cable conductors (1) and is in contact with the elastomeric high-voltage ethylene propylene insulation layer (2) on the surface of the aluminum alloy cable conductor (1).
3. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 1, characterized in that: The interior of the waterproof isolation layer (4) is filled with a filling layer (7), and the filling layer (7) includes one or more of polypropylene rope, glass fiber rope, asbestos rope, rubber, mineral filler, polystyrene foam, and silicone filler.
4. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 1, characterized in that: The surface fixing sleeve of the elastic high-voltage EPDM insulation layer (2) is provided with a shielding layer (8), and the surface fixing sleeve of the waterproof isolation layer (4) is provided with a water-blocking layer (9).
5. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 4, characterized in that: The armor layer (5) is composed of galvanized steel wire (10) and super-flexible tensile-resistant strands (11); the galvanized steel wire (10) is made of a low-carbon material, and the super-flexible tensile-resistant strands (11) are made of a high-elasticity Kevlar material.
6. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 5, characterized in that: The galvanized steel wire (10) and the ultra-flexible tensile-resistant strands (11) are uniformly mixed and woven and arranged on the surface of the water-blocking layer (9).
7. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 1, characterized in that: The waterproof elastomer polymer protective layer (6) is coated with an anti-corrosion coating (12), and the anti-corrosion coating (12) is a perchlorethylene paint.
8. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 1, characterized in that: A plurality of rubber fixing rings (13) are fixedly mounted on the surface of the waterproof elastomer polymer protective layer (6), and rubber anti-wear strips (14) are arranged between the plurality of rubber fixing rings (13).
9. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 8, characterized in that: The outer sides of the plurality of rubber anti-wear strips (14) are all arranged in an arc shape, and the plurality of rubber anti-wear strips (14) are evenly distributed on the outer side of the waterproof elastomer polymer protective layer (6).
10. The aluminum alloy core high-strength flexible cable for offshore oil platforms according to claim 4, characterized in that: The shielding layer (8) is made of one or more of aluminum foil, copper foil and semiconductor paper, and the water-blocking layer (9) is made of high-molecular polyethylene material.