Steel wire armored watertight cable capable of supplying liquid

Abstract

The utility model discloses a steel wire armored watertight cable capable of supplying liquid, which particularly relates to the technical field of underwater cables and comprises a power supply unit and an armoring unit which are sequentially distributed from inside to outside. The oil conveying device is used for conveying oil and comprises an oil conveying pipe, the oil is conveyed from the interior of the oil conveying pipe, a reinforcing sheath is arranged outside the oil conveying pipe, and an oil pipe sheath is arranged outside the reinforcing sheath; the power supply unit is used for conducting electricity and comprises a plurality of electric wires and a plurality of filling wires, and the electric wires and the filling wires surround the oil pipe sheath in an annular array mode; and the armored unit comprises an inner sheath, a double-layer armored layer and an outer sheath which are sequentially distributed from inside to outside. According to the utility model, the cable and the power supply unit are integrated in a single cable, so that the cable has the functions of supplying power and conveying oil at the same time, breaks through the structural mode of energy-hydraulic dual-system separation of traditional seabed equipment, improves the tensile and compressive properties of the cable, and can be more suitable for the field of deep sea exploitation.

Description

Technical Field

[0001] This utility model relates to the field of underwater cable technology, and more specifically to a steel wire armored watertight cable that can be supplied with liquid. Background Technology

[0002] With the continuous emergence of new marine application scenarios such as deep-sea mining and hydrate extraction, and as deep-sea exploration equipment becomes increasingly intelligent, information-based, and mechanized, it is necessary to use underwater cables to power the seabed equipment in order to ensure its normal operation.

[0003] Currently, the underwater cables used in existing technologies, such as those disclosed in prior art publications CN209607456U and CN222233317U, are mainly used for transmitting power or communication signals. However, the operation of subsea equipment requires not only power and communication but also hydraulic fluid to support the normal operation of the hydraulic system. Since these cables only have the single function of transmitting power and communication signals, the hydraulic systems of subsea equipment require additional hydraulic fluid delivery pipelines, increasing the cost of underwater construction. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a steel wire armored watertight cable that can supply liquid. By integrating the power supply unit into a single cable, it can simultaneously provide power supply and transport oil, breaking through the traditional structure mode of separating the energy-hydraulic dual system of submarine equipment. At the same time, it improves the tensile and compressive strength of the cable, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid-supplying steel wire armored watertight cable, comprising a liquid supply unit, a power supply unit, and an armoring unit arranged sequentially from the inside to the outside;

[0006] The liquid supply unit is used to transport oil, including an oil delivery pipe. The oil is transported inside the oil delivery pipe. The oil delivery pipe is provided with a reinforcing sleeve, and the reinforcing sleeve is provided with an oil pipe sleeve.

[0007] The power supply unit is used for conducting electricity and includes multiple wires and multiple filler wires, which are arranged in a ring array around the outer side of the oil pipe sheath.

[0008] The armor unit comprises an inner sheath, a double-layer armor, and an outer sheath, arranged sequentially from the inside out.

[0009] In a preferred embodiment, the oil conveying pipe is made of PU material. PU is a multifunctional polymer material that is oil-resistant, solvent-resistant, and chemical-resistant, and can be used for oil conveying in this invention. The reinforcing sheath is woven from aramid fiber, a high-performance synthetic fiber with advantages such as high strength, heat resistance, chemical corrosion resistance, and electrical insulation, and is widely used in various fields. The oil pipe sheath is made of polyurethane material, which has good elasticity, enabling it to withstand mechanical stress and deformation. It also has high tear resistance, extending its service life. It is mainly used to protect cables, providing mechanical protection and environmental isolation.

[0010] In a preferred embodiment, each wire includes an insulating sheath containing multiple wire cores. These wire cores are galvanized copper conductors, a material in which a layer of zinc is plated onto the surface of a copper conductor, combining the excellent conductivity of copper with the corrosion resistance of zinc. The insulating sheath is made of high-temperature resistant fluoroplastic, a type of polymer material with excellent high-temperature resistance and chemical stability, and good electrical insulation properties.

[0011] In a preferred embodiment, each braided rope includes a braided rope and a braided rope sheath, the braided rope being disposed inside the braided rope sheath. The braided rope is a Kevlar rope, a high-performance rope made of Kevlar fiber, possessing excellent strength, heat resistance, and cut resistance. The braided rope sheath is made of polyethylene material.

[0012] In a preferred embodiment, both the inner and outer sheaths are made of high-strength polyurethane material, which has extremely high tensile strength and tear resistance, enabling it to enhance the mechanical properties of the cable. At the same time, the material also has good elasticity, can withstand repeated stress, and helps to enhance the cable's buffering capacity, improve its resistance to lateral pressure, and increase its longitudinal strain buffering efficiency.

[0013] In a preferred embodiment, the double-layer armor is made of double-layer high-strength galvanized steel wire in both directions, and the double-layer armor is wrapped around the outside of the inner sheath.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By integrating the power supply unit into a single cable, it can simultaneously provide power and transport hydraulic fluid, breaking through the traditional structure of separating the energy and hydraulic systems of subsea equipment. This saves on the laying of underwater pipelines, reduces the cost of underwater mining construction, and makes it more suitable for deep-sea mining.

[0016] 2. By setting up a reinforced sheath made of aramid fiber and an inner sheath made of high-strength polyurethane material for buffering, the cable's resistance to lateral pressure and longitudinal strain buffering efficiency are improved.

[0017] 3. The double-layer armor layer in this utility model adopts double-layer high-strength galvanized steel wire forward and reverse armor technology to improve the cable's resistance to breaking and torsion. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the conductor core and insulating sheath of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the braided rope and braided rope sheath of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Liquid supply unit; 11. Oil delivery pipe; 12. Reinforcing sleeve; 13. Oil pipe sheath;

[0023] 2. Power supply unit; 21. Wire core; 22. Insulating sheath; 23. Braided rope; 24. Braided rope sheath;

[0024] 3. Armor unit; 31. Inner sheath; 32. Double armor layer; 33. Outer sheath. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Refer to the instruction manual appendix Figure 1 This utility model provides a liquid-resistant steel wire armored watertight cable, which includes 1, a power supply unit 2 and an armor unit 3 distributed from the inside to the outside.

[0027] The liquid supply unit 1 is used to transport oil. The liquid supply unit 1 includes an oil delivery pipe 11, which is made of PU material. The oil is transported inside the oil delivery pipe 11. A reinforcing sleeve 12 is provided outside the oil delivery pipe 11. The reinforcing sleeve 12 is woven from aramid fiber. An oil pipe sheath 13 is provided outside the reinforcing sleeve 12. The oil pipe sheath 13 is made of polyurethane material.

[0028] The power supply unit 2 is configured to conduct electricity, and includes multiple wires and multiple filler wires. The wires and filler wires are arranged in a ring array around the oil pipe sheath 13, specifically as follows: Figure 2 and Figure 3 As shown: Each wire includes an insulating sheath 22, inside which are multiple wire cores 21. The wire cores 21 are galvanized copper conductors. The insulating sheath 22 is made of high-temperature resistant fluoroplastic. Each braided rope includes a braided rope 23 and a braided rope sheath 24. The braided rope 23 is located inside the braided rope sheath 24. The braided rope 23 is Kevlar rope. The braided rope sheath 24 is made of polyethylene material.

[0029] This invention utilizes a system 1 to supply oil to the subsea equipment and a power supply unit 2 to supply power to the subsea equipment. This design breaks through the traditional structural mode of separating the energy and hydraulic systems of subsea equipment. This composite cable design achieves: 1) a reduction in system complexity of more than 40% (based on comparative data of similar equipment); 2) a pressure resistance of ≥50MPa corresponding to a water depth of 5000 meters.

[0030] In this embodiment, the armor unit 3 includes an inner sheath 31, a double-layer armor layer 32, and an outer sheath 33 arranged sequentially from the inside to the outside. The inner sheath 31 and the outer sheath 33 are both made of high-strength polyurethane material. The double-layer armor layer 32 is made of double-layer high-strength galvanized steel wire in both directions. The double-layer armor layer 32 is wrapped around the outside of the inner sheath 31.

[0031] The inner sheath 31 and the reinforcing sheath 12 work together to improve the cable's lateral pressure resistance to 300 N / mm and increase the longitudinal strain buffering efficiency by 85% (compared to traditional single-layer sheaths).

[0032] The double-layer armor layer 32 employs bidirectional armoring technology using 1.5mm grade 316L stainless steel wire, increasing the cable's breaking strength to 180kN and ensuring a torque balance coefficient of ≤0.15. This design provides the cable with excellent tensile strength, a minimum breaking strength of 180kN, and the ability to withstand a weight of 18,000kg. It can effectively supply oil and electricity to underwater equipment or devices even under extremely strong towing forces. The rated pressure of the oil delivery pipe 11 is 43MPa, with a maximum pressure of 51.7MPa. This means the cable can supply oil and electricity to equipment or devices at depths of up to 5100m underwater, meeting the oil and electricity requirements of deep-sea underwater mining.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A watertight steel wire armored cable suitable for use with liquid, characterized in that: It includes a liquid supply unit (1), a power supply unit (2), and an armored unit (3) arranged sequentially from the inside out; The liquid supply unit (1) is used to transport oil, including an oil delivery pipe (11). The oil is transported inside the oil delivery pipe (11). The oil delivery pipe (11) is provided with a reinforcing sleeve (12) outside the oil delivery pipe (11), and an oil pipe sleeve (13) is provided outside the reinforcing sleeve (12). The power supply unit (2) is used for conducting electricity and includes multiple wires and multiple filler wires, which are arranged in a ring array around the outside of the oil pipe sheath (13). The armor unit (3) includes an inner sheath (31), a double armor layer (32), and an outer sheath (33) arranged sequentially from the inside to the outside.

2. The liquid-resistant steel wire armored watertight cable according to claim 1, characterized in that: The oil delivery pipe (11) is made of PU material, the reinforcing sleeve (12) is woven from aramid fiber, and the oil pipe sleeve (13) is made of polyurethane elastomer.

3. The liquid-resistant steel wire armored watertight cable according to claim 1, characterized in that: Each wire includes an insulating sheath (22) with multiple wire cores (21) inside. The wire cores (21) are galvanized copper conductors, and the insulating sheath (22) is made of high-temperature resistant fluoroplastic.

4. A liquid-resistant steel wire armored watertight cable according to claim 1, characterized in that: Each braided rope includes a braided rope (23) and a braided rope sheath (24), wherein the braided rope (23) is disposed inside the braided rope sheath (24), the braided rope (23) is Kevlar rope, and the braided rope sheath (24) is made of polyethylene material.

5. A liquid-resistant steel wire armored watertight cable according to claim 1, characterized in that: Both the inner sheath (31) and the outer sheath (33) are made of high-strength polyurethane material.

6. A liquid-resistant steel wire armored watertight cable according to claim 1, characterized in that: The double-layer armor layer (32) is made of double-layer high-strength galvanized steel wire in both directions and is wrapped around the outside of the inner sheath (31).

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