Ultra-deep water dynamic hose umbilical cable

Abstract

The utility model discloses an ultra-deep water dynamic hose umbilical cable which comprises a body, a cable group (1) is arranged on the inner ring of the body, the cross section of the cable group (1) is circular, an outer bandage shaping layer (2) is arranged on the outer layer of the cable group (1), and the outer bandage shaping layer (2) is used for shaping the cross section of the cable group (1) to be circular. The outer layer of the cable group (1) is provided with a protective outer layer (3) used for wrapping and shaping the cable group (1), the protective outer layer (3) comprises two outer sheath layers (3.1) made of polyurethane and an aramid fiber armor layer (3.2), and the aramid fiber armor layer (3.2) is arranged between the two outer sheath layers (3.1). The utility model relates to an ultra-deep water dynamic hose umbilical cable which is suitable for complex environments in deep and far sea areas.

Description

Technical Field

[0001] The utility model relates to the field of umbilical cables, in particular to an ultra-deep water dynamic hose umbilical cable. Background Art

[0002] With the transformation and upgrading of the global energy structure, the development of marine resources has gradually moved from the nearshore to the deep sea. Along with the large-scale development of deep-sea mineral resources, deep-sea wind power development, deep-sea oil and gas and other fields, the demand for deep-sea electricity and resource transportation has been greatly increased, and the high reliability demand for the "umbilical cable", an indispensable core device for deep-sea energy development, has also been increased.

[0003] Traditional umbilical cables mainly use steel wire armor as the load-bearing unit to provide mechanical strength protection. A PE sheath layer structure is added to its outer layer to provide wear resistance and corrosion resistance. However, in deep sea areas, the marine environment is complex. Traditional steel wire armor is subject to the loads and tension of the marine environment during service, and is prone to fatigue fracture and various failure problems. Its service life can no longer meet the needs of deep sea applications. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an ultra-deep water dynamic hose umbilical cable suitable for complex environments in deep sea areas.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problems is: an ultra-deepwater dynamic hose umbilical cable, comprising a body, the inner circle of the body is provided with a cable group, the cross-section of the cable group is circular, the outer layer of the cable group is provided with an outer binding tape shaping layer, the outer binding tape shaping layer is used to shape the cross-section of the cable group into a circular shape, the outer layer of the cable group is provided with a protective outer layer for wrapping and shaping the cable group, the protective outer layer comprises two outer sheath layers made of polyurethane and an aramid armor layer, and the aramid armor layer is arranged between the two outer sheath layers.

[0006] Compared with the prior art, the advantages of the utility model are: the armor structure is replaced by an aramid armor layer, which can increase the overall flexibility of the umbilical cable, and has stronger adaptability to the ocean current phenomenon in the deep sea environment. Long-term adaptive bending with the ocean current is not easy to cause fatigue fracture of the aramid armor layer, and it is not easy for the aramid armor layer to fail in protection. The two-layer outer sheath layer structure made of polyurethane also has better flexibility than the traditional PE sheath layer, and also increases the wear resistance. During the adaptive bending process, the outer sheath layer is not easily damaged, thereby ensuring the safety of the aramid armor and the cable group. In addition, the combined structure of the aramid armor layer and the outer sheath layer of the polyurethane material is lighter than the combined structure of the steel wire armor layer and the PE outer sheath layer, which can reduce the difficulty of deep sea laying and improve the laying safety of deep sea umbilical cables.

[0007] As an improvement of the utility model, the cable group includes a hose, a power cable unit, a communication cable unit, an optical cable unit, and a control cable unit. The hose, power cable unit, communication cable unit, optical cable unit, and control cable unit are evenly distributed in the cable group. Through the improvement, the overall uniformity of the umbilical cable is ensured. During the adaptive bending process, the umbilical cable is not easily subjected to uneven force, resulting in local extrusion damage or bending damage. At the same time, the traditional steel pipe structure for transporting oil and gas is replaced by a hose structure, which is more suitable for the complex environment of the deep sea.

[0008] As an improvement of the utility model, the control cable unit is provided with one, three combined conductors are arranged in the control cable unit, the three combined conductors are twisted into an axial cable with a circular cross-section, the outer layer of the three combined conductors is provided with an inner binding tape shaping layer, the inner binding tape shaping layer is used to wrap the three combined conductors and shape the cross-section of the three combined conductors into a circular shape, the axial cable is arranged along the axis of the body. Through the improvement, the control cable unit is selected as the axial cable according to the unit type and unit quantity of the cable group, and the cross-section is shaped into a circular shape, which is helpful for the twisting and positioning of other units.

[0009] As an improvement of the utility model, there are three power cable units and three hoses. The three power cable units and the three hoses are evenly arranged along the circumference of the axial cable, and the power cable units and the hoses are arranged at intervals. Through the improvement, the power cable units and hoses with larger diameters are evenly distributed to ensure the uniformity of the cable group.

[0010] As an improvement of the present invention, the outer layer of the hose, the outer layer of the power cable unit, and the outer layer of the control cable unit are all wrapped with a cable sheath layer made of polyurethane. Through the improvement, when the umbilical cable is adaptively bent, relative movement will also occur between the units inside the cable group. The design of the cable sheath layer can avoid relative wear between the units, thereby ensuring safety in use.

[0011] As an improvement of the utility model, the diameters of the axial cable, the hose and the power cable unit are made equal by adjusting the thickness of the cable sheath layer of the outer layer of the molding hose, the thickness of the cable sheath layer of the outer layer of the power cable unit and the thickness of the inner binding tape shaping layer. Through the improvement, when the hose and the power cable unit are distributed along the axial cable, adjacent units can be kept in close contact with each other and the gap can be reduced, thereby better ensuring the uniformity and compactness of the distribution of the cable group and ensuring the molding quality of the cable group.

[0012] As an improvement of the utility model, two optical cable units are provided, four communication cable units are provided, an optical cable unit or a communication cable unit is installed in the outer connecting gap between adjacent hoses and power cable units, and the two optical cable units are symmetrically arranged about the center of a circle. Through the improvement, the optical cable units and communication cable units with smaller diameters are evenly distributed to ensure the uniformity of the cable group.

[0013] As an improvement of the present invention, the outer layers of the two optical cable units and the outer layers of the four communication cable units are also wrapped with a cable sheath layer made of polyurethane. Through the improvement, when the umbilical cable is adaptively bent, relative movement will also occur between the units inside the cable group. The design of the cable sheath layer can avoid relative wear between the units and ensure safety of use.

[0014] As an improvement of the present invention, the thickness of the cable sheath layer of the molded optical cable unit is made so that the optical cable unit is simultaneously tangent to the adjacent hose, power cable unit, and outer binding tape shaping layer; the thickness of the cable sheath layer of the molded communication cable unit is made so that the communication cable unit is simultaneously tangent to the adjacent hose, power cable unit, and outer binding tape shaping layer. Through the improvement, when the optical cable units and the communication cable units are distributed, they can maintain mutual fit with adjacent units and reduce gaps, thereby better ensuring the uniformity and compactness of the distribution of the cable group and ensuring the molding quality of the cable group. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0016] As shown in the figure: 1. Cable group, 1.1. Hose, 1.2. Power cable unit, 1.3. Communication cable unit, 1.4. Optical cable unit, 1.5. Control cable unit, 1.5.1. Combined conductor, 1.5.2. Inner binding tape shaping layer, 2. Outer binding tape shaping layer, 3. Protective outer layer, 3.1. Outer sheath layer, 3.2. Aramid armor layer, 4. Cable sheath layer, 5. Filling strip, 6. Water-blocking glue. DETAILED DESCRIPTION

[0017] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0018] like Figure 1As shown, an ultra-deepwater dynamic hose umbilical cable comprises a body, the inner ring of the body is provided with a cable group 1, the cross-section of the cable group 1 is circular, the outer layer of the cable group 1 is provided with an outer binding tape shaping layer 2, the outer binding tape shaping layer 2 is used to shape the cross-section of the cable group 1 into a circular shape, the outer layer of the cable group 1 is provided with a protective outer layer 3 for wrapping and shaping the cable group 1, the protective outer layer 3 comprises two outer sheath layers 3.1 made of polyurethane and an aramid armor layer 3.2, the aramid armor layer 3.2 is arranged between the two outer sheath layers 3.1.

[0019] The cable group 1 includes a hose 1.1, a power cable unit 1.2, a communication cable unit 1.3, an optical cable unit 1.4, and a control cable unit 1.5. The hose 1.1, the power cable unit 1.2, the communication cable unit 1.3, the optical cable unit 1.4, and the control cable unit 1.5 are evenly distributed in the cable group 1.

[0020] The control cable unit 1.5 is provided with one, and three combined conductors 1.5.1 are arranged in the control cable unit 1.5. The three combined conductors 1.5.1 are twisted into an axial cable with a circular cross-section. The outer layer of the three combined conductors 1.5.1 is provided with an inner binding tape shaping layer 1.5.2. The inner binding tape shaping layer 1.5.2 is used to wrap the three combined conductors 1.5.1 and shape the cross-section of the three combined conductors 1.5.1 into a circular shape. The axial cable is arranged along the axis of the body.

[0021] There are three power cable units 1.2 and three hoses 1.1. The three power cable units 1.2 and the three hoses 1.1 are evenly arranged along the circumference of the axis cable, and the power cable unit 1.2 and the hose 1.1 are arranged at intervals. The outer layer of the hose 1.1, the outer layer of the power cable unit 1.2 and the outer layer of the control cable unit 1.5 are all wrapped with a cable sheath layer 4 made of polyurethane. By molding the thickness of the cable sheath layer 4 of the outer layer of the hose 1.1, the thickness of the cable sheath layer 4 of the outer layer of the power cable unit 1.2 and the thickness of the inner binding tape shaping layer 1.5.2, the diameters of the axis cable, the hose 1.1 and the power cable unit 1.2 are made equal.

[0022] During the forming process of the combined conductor 1.5.1 and the power cable, an inner binding tape shaping layer 1.5.2 is also used for forming and fixing.

[0023] There are two optical cable units 1.4, and four communication cable units 1.3. One unit 1.4 or one communication cable unit 1.3 is installed in the outer connecting gap between the adjacent hoses 1.1 and power cable units 1.2, and the two optical cable units 1.4 are symmetrically arranged about the center of a circle. The outer layers of the two optical cable units 1.4 and the outer layers of the four communication cable units 1.3 are also wrapped with a cable sheath layer 4 made of polyurethane. The thickness of the cable sheath layer 4 of the molded optical cable unit 1.4 is made so that the optical cable unit 1.4 is tangent to the adjacent hose 1.1, power cable unit 1.2, and outer binding tape molding layer 2 at the same time. The thickness of the cable sheath layer 4 of the molded communication cable unit 1.3 is made so that the communication cable unit 1.3 is tangent to the adjacent hose 1.1, power cable unit 1.2, and outer binding tape molding layer 2 at the same time.

[0024] Independent metal shielding layers are provided on the conductors inside the power cable unit 1.2, the communication cable unit 1.3, and the control cable unit 1.5 to ensure that there is no signal interference between the cables, which is a conventional design.

[0025] In order to ensure the compactness of the cable group 1 and reduce the probability of extrusion deformation during the bending of the umbilical cable, the areas with larger gaps between the units and the areas with larger gaps between the conductors inside the units are filled with filling strips 5, and then filled with water-blocking glue 6, so as to further improve the internal water-blocking effect of the umbilical cable.

[0026] In the utility model, the ultra-deepwater dynamic hose umbilical cable includes five units, namely a hose 1.1, a power cable unit 1.2, a communication cable unit 1.3, an optical cable unit 1.4 and a control cable unit 1.5, which fully meet the needs of electrical signal transmission, optical signal transmission and oil and gas transmission. At the same time, because of the protective structure composed of an outer sheath layer 3.1 made of polyurethane and an aramid armor layer 3.2, the ultra-deepwater dynamic hose umbilical cable has stronger underwater adaptability in deep sea water and has the ability to serve for a long time in the complex underwater environment of deep sea water. In addition, by utilizing the reasonable distribution of the hose 1.1, the power cable unit 1.2, the communication cable unit 1.3, the optical cable unit 1.4 and the control cable, the ultra-deepwater dynamic hose 1.1 umbilical cable is more evenly distributed, has stronger bending adaptability and a more stable structure.

[0027] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. An ultra-deepwater dynamic hose umbilical cable, characterized in that: The invention comprises a main body, wherein the inner ring of the main body is provided with a cable group (1), the cross section of the cable group (1) is circular, the outer layer of the cable group (1) is provided with an outer binding tape shaping layer (2), the outer binding tape shaping layer (2) is used to shape the cross section of the cable group (1) into a circular shape, the outer layer of the cable group (1) is provided with a protective outer layer (3) used to wrap and shape the cable group (1), the protective outer layer (3) comprises two outer sheath layers (3.1) made of polyurethane and an aramid armor layer (3.2), the aramid armor layer (3.2) is arranged between the two outer sheath layers (3.1).

2. The ultra-deepwater dynamic hose umbilical cable according to claim 1, characterized in that: The cable assembly (1) comprises a hose (1.1), a power cable unit (1.2), a communication cable unit (1.3), an optical cable unit (1.4), and a control cable unit (1.5); the hose (1.1), the power cable unit (1.2), the communication cable unit (1.3), the optical cable unit (1.4), and the control cable unit (1.5) are evenly distributed in the cable assembly (1).

3. The ultra-deepwater dynamic hose umbilical cable according to claim 2, characterized in that: The control cable unit (1.5) is provided with one, and three combined conductors (1.5.1) are arranged in the control cable unit (1.5), and the three combined conductors (1.5.1) are twisted into an axial cable with a circular cross-section, and the outer layer of the three combined conductors (1.5.1) is provided with an inner binding tape shaping layer (1.5.2), and the inner binding tape shaping layer (1.5.2) is used to wrap the three combined conductors (1.5.1) and shape the cross-section of the three combined conductors (1.5.1) into a circular shape, and the axial cable is arranged along the axis of the body.

4. The ultra-deepwater dynamic hose umbilical cable according to claim 3, characterized in that: A total of three power cable units (1.2) are provided, and a total of three hoses (1.1) are provided. The three power cable units (1.2) and the three hoses (1.1) are evenly arranged along the circumference of the axial cable, and the power cable units (1.2) and the hoses (1.1) are arranged at intervals.

5. The ultra-deepwater dynamic hose umbilical cable according to claim 4, characterized in that: The outer layer of the hose (1.1), the outer layer of the power cable unit (1.2), and the outer layer of the control cable unit (1.5) are all wrapped with a cable sheath layer (4) made of polyurethane.

6. The ultra-deepwater dynamic hose umbilical cable according to claim 5, characterized in that: The diameters of the shaft cable, the hose (1.1) and the power cable unit (1.2) are made equal by adjusting the thickness of the cable sheath layer (4) on the outer layer of the molding hose (1.1), the thickness of the cable sheath layer (4) on the outer layer of the power cable unit (1.2) and the thickness of the inner binding tape shaping layer (1.5.2).

7. The ultra-deepwater dynamic hose umbilical cable according to claim 4, characterized in that: Two optical cable units (1.4) are provided, and four communication cable units (1.3) are provided; an optical cable unit (1.4) or a communication cable unit (1.3) is installed in the outer connecting gap between adjacent hoses (1.1) and power cable units (1.2), and the two optical cable units (1.4) are symmetrically arranged about the center of a circle.

8. The ultra-deepwater dynamic hose umbilical cable according to claim 7, characterized in that: The outer layers of the two optical cable units (1.4) and the outer layers of the four communication cable units (1.3) are also wrapped with a cable sheath layer (4) made of polyurethane.

9. The ultra-deepwater dynamic hose umbilical cable according to claim 7, characterized in that: By shaping the thickness of the cable sheath layer (4) of the optical cable unit (1.4), the optical cable unit (1.4) is simultaneously tangent to the adjacent hose (1.1), the power cable unit (1.2), and the outer binding tape shaping layer (2); and by shaping the thickness of the cable sheath layer (4) of the communication cable unit (1.3), the communication cable unit (1.3) is simultaneously tangent to the adjacent hose (1.1), the power cable unit (1.2), and the outer binding tape shaping layer (2).

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