Submarine mixed transportation hose of integrated cable

Abstract

The utility model relates to a submarine mixed transportation hose of an integrated cable, which comprises an inner pressure sealing layer, a pressure bearing layer, an inner wear-resistant adhesive tape, an inner tensile armor layer, an outer wear-resistant adhesive tape, an outer tensile armor layer, an anti-buckling layer, a hose outer sheath and an outer sheath which are sequentially arranged from inside to outside, and a steel pipe and the cable are arranged between the hose outer sheath and the outer sheath. The space among the hose outer sheath, the steel pipe, the cable and the outer sheath is filled with a filling layer. The submarine mixed transportation hose of the integrated cable has the functions of power transmission, liquid-gas mixed transportation and structure bearing; by internally integrating a multi-core cable, a pressure-bearing structure and a tensile structure, coexistence of electric power signal transmission, liquid-gas mixed transmission and structure safety is realized; structural integration and space optimization are achieved, multiple functional units are integrated in a limited cross section, and the requirements of deep sea engineering for compact structure and reasonable weight are met; power transmission, liquid-gas mixed transmission, compression resistance, tensile resistance and a multi-layer sealing structure are integrated, and the operation requirements in a complex marine environment are met.

Description

Technical Field

[0001] This utility model relates to the field of submarine cable technology, and in particular to a submarine hybrid transmission hose for an integrated cable. Background Technology

[0002] With the continuous advancement of global marine resource development and utilization, the rapid development of deep-sea oil and gas extraction, submarine wind power, and transoceanic communications has placed higher demands on submarine power transmission systems and flexible connection structures.

[0003] Traditional submarine cables mainly transmit electricity or signals, while flexible hoses are mainly used for fluid transport. However, the two are often independent in structure and function, making it difficult to achieve multi-functional integration, structural compactness, and mechanical stability.

[0004] Existing flexible composite structures, such as dynamic umbilical cables and flexible risers, while possessing excellent performance in certain aspects, often focus on oil and gas transportation and are unable to meet the requirements of simultaneously transmitting power signals and bearing structural pressure. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing technology, in which submarine cables and hoses are independent working structures that realize signal transmission and fluid transportation respectively, cannot meet the ever-increasing requirements of submarine power transmission.

[0006] To solve the above-mentioned technical problems, this utility model provides a submarine hybrid transmission hose for integrated cables, comprising: an inner pressure sealing layer disposed within the inner layer of the hose; a pressure-bearing layer sleeved on the outer surface of the inner pressure sealing layer; an inner wear-resistant tape spirally wound around the outside of the pressure-bearing layer; an inner tensile armor layer spirally wound around the outside of the inner wear-resistant tape; an outer wear-resistant tape spirally wound around the outside of the inner tensile armor layer; an outer tensile armor layer spirally wound around the outside of the outer wear-resistant tape; and a buckling-resistant layer spirally wound around... The system comprises: an outer sheath surrounding the outer tensile armor layer; an outer sheath covering the outer buckling-resistant layer; and an outer sleeve fitted over the outer sheath, with a gap between the outer wall and inner wall of the outer sheath. A steel pipe and cable are housed within this gap, which is also filled with a filler material that defines the position of the steel pipe and cable within the gap and supports the outer sheath. This integrated cable subsea hybrid transport hose is suitable for power connection and control transmission on subsea wind power platforms, and can be extended to deep-sea oil and gas exploration, observation nodes, and floating platform riser systems, adapting to different engineering needs and possessing broad application prospects.

[0007] In one embodiment of this utility model, the material of the inner pressure sealing layer is PVDF or HDPE, and the inner pressure sealing layer is formed into a hollow cylindrical shape by extrusion.

[0008] In one embodiment of this utility model, the pressure-bearing layer is an armor layer, and the pressure-bearing layer is used to provide radial section support for the hose.

[0009] In one embodiment of this utility model, both the inner and outer wear-resistant tapes are polyurethane elastic tapes, and the inner and outer wear-resistant tapes are used to reduce interlayer friction.

[0010] In one embodiment of this utility model, the inner tensile armor layer and the outer tensile armor layer are used to provide the axial tensile strength of the hose.

[0011] In one embodiment of the present invention, the buckling-resistant layer is used to resist radial bending of the outer tensile armor layer.

[0012] In one embodiment of this utility model, the steel pipe is configured as one or more pipes.

[0013] In one embodiment of this utility model, the cable is a multi-core high-voltage cable.

[0014] In one embodiment of this utility model, the filler material is rubber.

[0015] In one embodiment of this utility model, the outer sheath is formed by hot extrusion and then wrapped around the outside of the filler.

[0016] Compared with the prior art, the integrated cable submarine mixed-transmission hose of this utility model has the following advantages:

[0017] 1. It combines the functions of power transmission, liquid-gas mixed transmission and structural load-bearing; through the internal integration of multi-core cables, pressure-bearing structure and tensile structure, it achieves the coexistence of power signal transmission, liquid-gas mixed transmission and structural safety.

[0018] 2. Achieve structural integration and space optimization; integrate multiple functional units within a limited cross-section to meet the requirements of deep-sea engineering for compact structure and reasonable weight.

[0019] This utility model relates to a submarine hybrid power transmission hose that integrates power transmission, liquid-gas hybrid transmission, pressure and tensile strength, and a multi-layer sealing structure, making it suitable for operational needs in complex marine environments. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a cross-sectional view of the submarine mixed-transmission hose with integrated cable in a preferred embodiment of this utility model.

[0022] Explanation of reference numerals in the accompanying drawings: 1. Inner pressure sealing layer; 2. Pressure bearing layer; 3. Inner wear-resistant tape; 4. Inner tensile armor layer; 5. Outer wear-resistant tape; 6. Outer tensile armor layer; 7. Buckling-resistant layer; 8. Outer sheath of the hose; 9. Steel pipe; 10. Cable; 11. Filler; 12. Outer sheath. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1 As shown, the integrated cable of this utility model for submarine hybrid transmission includes: an inner pressure sealing layer 1, a pressure-bearing layer 2, an inner wear-resistant tape 3, an inner tensile armor layer 4, an outer wear-resistant tape 5, an outer tensile armor layer 6, a buckling-resistant layer 7, an outer sheath 8, and an outer sheath 12, arranged sequentially from the inside out. A steel pipe 9 and a cable 10 are disposed between the outer sheath 8 and the outer sheath 12. The outer sheath 8, steel pipe 9, cable 10, and outer sheath 12 are filled by a filler layer, which provides zoned support and vibration isolation protection, preventing the cable core from being subjected to eccentric bending or load impact during service, thereby improving the cable transmission performance and safety. The structure of the inner pressure sealing layer 1, the outer sheath 8, and the outer sheath 12 forms a multi-level seepage prevention, and the materials used are corrosion-resistant, seawater-resistant, and adaptable to high-temperature environments. It can be used in combination with different cable types (such as high-voltage cables and fiber optic hybrid cables), and the outer sheath can be made of corrosion-resistant materials such as polyamide, cross-linked polyethylene, or high-density polyethylene. The materials and winding method of the armor structure are selected based on the pressure level of the sea area. The structural dimensions can be customized according to requirements.

[0025] In the above structure, the inner pressure sealing layer 1 is disposed within the inner layer of the hose; the pressure bearing layer 2 is sleeved on the outer surface of the inner pressure sealing layer 1; the inner wear-resistant tape 3 is spirally wound around the outside of the pressure bearing layer 2; the inner tensile armor layer 4 is spirally wound around the outside of the inner wear-resistant tape 3; the outer wear-resistant tape 5 is spirally wound around the outside of the inner tensile armor layer 4; the outer tensile armor layer 6 is spirally wound around the outside of the outer wear-resistant tape 5; the buckling-resistant layer 7 is spirally wound around the outside of the outer tensile armor layer 6; and the hose outer sheath 8 covers the hose. The outer layer of the buckling-resistant layer 7; the outer sheath 12, which is sleeved on the outside of the outer sheath 8 of the hose, and there is a gap between the outer wall of the outer sheath 8 of the hose and the inner wall of the outer sheath 12. A steel pipe 9 and a cable 10 are arranged in the gap between the outer sheath 8 of the hose and the outer sheath 12, and the gap between the outer sheath 8 of the hose and the outer sheath 12 is filled with a filler 11. The filler 11 is used to define the position of the steel pipe 9 and the cable 10 in the gap, and the filler 11 is used to support the outer sheath 12.

[0026] In the above structure, the inner pressure sealing layer 1 is made of PVDF or HDPE, and is formed into a hollow cylindrical tube by extrusion. The inner pressure sealing layer 1 is located on the innermost side of the pipeline, and is formed by extrusion in a continuous annular shape, creating a boundary layer for the transported fluid, which is pressure-resistant and corrosion-resistant.

[0027] In the above structure, the pressure-bearing layer 2 is an armor layer, and it provides radial cross-sectional support for the hose. The pressure-bearing layer 2 adopts a C or Z-type interlocking winding structure with a winding angle close to 90 degrees, and is fitted outside the inner pressure sealing layer. It is made of high-strength stainless steel or duplex steel, withstands external pressure, and provides circumferential support for the entire pipeline. The armor structure of the pressure-bearing layer 2 is based on prior art patent application number CN200820039913.4, entitled "Structure of Armor Layer 3 in Armored Cables".

[0028] In the above structure, both the inner wear-resistant tape 3 and the outer wear-resistant tape 5 are polyurethane elastic tapes, and the inner wear-resistant tape 3 and the outer wear-resistant tape 5 are used to reduce interlayer friction.

[0029] In the above structure, the inner tensile armor layer 4 and the outer tensile armor layer 6 are used to provide axial tensile strength for the hose. The inner tensile armor layer 4 and the outer tensile armor layer 6 have the same structure, both made of multiple high-strength flat steels wound at a certain helical angle, usually 35-60°, to provide longitudinal tensile strength and prevent the hose from being damaged during laying or under tensile loads.

[0030] In the above structure, the buckling-resistant layer 7 is used to resist the radial bending of the outer tensile armor layer 6. Specifically, the buckling-resistant layer 7 is made of fiberglass tape or aramid tape, and the buckling-resistant layer 7 is wear-resistant to prevent radial buckling of the tensile armor steel wire.

[0031] In the above structure, the outer sheath 8 of the hose is continuously extruded and coated, which can prevent seawater, corrosion and mechanical damage.

[0032] In the above structure, the steel pipe 9 is configured as one or more. Preferably, the number of multiple steel pipes 9 is 12, and the 12 steel pipes 9 are arranged in pairs, with the pairs of steel pipes 9 arranged in a circular array centered on the center of the inner pressure sealing layer 1. The steel pipe 9 is a hollow steel tube located in the center of the cable filling area. The material of the steel pipe 9 is 304 or 316L stainless steel, and it is used to transport liquids or gases. Its purpose is: 1. Media transportation; 2. Local heating or cooling to prevent low-temperature embrittlement or high-temperature aging; 3. The steel pipe provides radial support.

[0033] In the above structure, the cable 10 is a multi-core high-voltage cable. Preferably, the number of cables 10 is set to 6, and the 6 cables 10 are arranged in a circular array with the center of the inner pressure sealing layer 1 as the center. The cables 10 are spaced apart from the steel pipes 9 in pairs. The structure in which the cables 10 and steel pipes 9 are on the same circumference and coaxially arranged, with the help of the filling layer for partition support, improves space utilization and wiring safety. The multi-core high-voltage cable is built in and covered with a waterproof protective layer to realize the transmission of electrical energy or signals from the submarine equipment to the shore or platform.

[0034] In the above structure, the filler 11 is made of rubber. The space between the cable and the steel pipe is uniformly filled with lightweight rubber, which serves as a buffer, protector, and heat insulation to prevent the cables from moving or colliding with each other.

[0035] In the above structure, the outer sheath 12 is formed in one step by hot extrusion to cover the outside of the filler 11. The outer sheath 12 is continuously extruded and formed in one step by hot extrusion molding.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An integrated cable subsea hybrid in-line hose, characterized in that, The utility model relates to a kind of flexible pipe, including: An inner pressure sealing layer is arranged in the inner layer of the hose; A pressure bearing layer is sleeved on the outer surface of the inner pressure sealing layer; An inner wear-resistant tape is spirally wound outside the pressure bearing layer; An inner layer tensile armor layer is spirally wound outside the inner wear-resistant tape; An outer wear-resistant tape is spirally wound outside the inner layer tensile armor layer; An outer layer tensile armor layer is spirally wound outside the outer wear-resistant tape; A buckling-resistant layer is spirally wound outside the outer layer tensile armor layer; A hose outer sheath is wrapped outside the buckling-resistant layer; An outer sheath is sleeved outside the hose outer sheath, and there is a gap between the outer wall of the hose outer sheath and the inner wall of the outer sheath, a steel pipe and a cable are arranged in the gap between the hose outer sheath and the outer sheath, and a filler is filled in the gap between the hose outer sheath and the outer sheath, the filler is used to define the position of the steel pipe and the cable in the gap, and the filler is used to support the outer sheath.

2. The integrated cable's subsea hybrid in-line hose according to claim 1, characterized in that: The material of the inner pressure sealing layer is PVDF or HDPE, and the inner pressure sealing layer is formed into an internally hollow circular tube by extrusion.

3. The submarine hybrid cable of claim 1, wherein: The pressure bearing layer is an armor layer, and the pressure bearing layer is used to provide radial cross-sectional support for the hose.

4. The integrated cable's subsea hybrid in-line hose of claim 1, characterized by: The inner wear-resistant tape and the outer wear-resistant tape are both polyurethane elastic tapes, and the inner wear-resistant tape and the outer wear-resistant tape are used to reduce interlayer friction.

5. The integrated cable's subsea hybrid in-line hose according to claim 1, characterized in that: The inner layer tensile armor layer and the outer layer tensile armor layer are used to provide axial tensile capacity for the hose.

6. The integrated cable's subsea hybrid in-line hose of claim 1, characterized by: The buckling-resistant layer is used to resist the radial bending of the outer layer tensile armor layer.

7. The submarine hybrid cable of claim 2, wherein: The steel pipe is arranged as one or more.

8. The submarine hybrid cable's in-line hose according to claim 7, characterized in that: The cable is a multi-core high-voltage cable.

9. The submarine hybrid cable of claim 1, wherein: The material of the filler is rubber.

10. The submarine hybrid cable of claim 1, wherein: The outer sheath is formed by hot extrusion once and wrapped outside the filler.

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