Novel underwater composite monitoring cable

Abstract

The utility model relates to a novel underwater composite monitoring cable, which comprises at least one group of power lines and at least four groups of signal lines, all the signal lines are wrapped in the same mylar layer, and a plurality of first filling pieces are filled in gaps between the signal lines and between the signal lines and the inner wall of the mylar layer, so that the cross section of the mylar layer is circular; a second shielding layer and a first sheath are sequentially arranged on the outer surface of the mylar layer from inside to outside, the power lines and the signal lines are wrapped in the same belting layer, and a plurality of second filling pieces are filled in gaps between the power lines and between the power lines and the inner wall of the belting layer, so that the cross section of the belting layer is circular; and an inner sheath, a waterproof layer and an outer sheath are sequentially arranged on the outer surface of the belting layer from inside to outside. According to the scheme, electrostatic interference, electromagnetic induction, crosstalk induction and other signal interference are effectively prevented, the tensile strength and the elongation at break are high, and the oil resistance, the wear resistance, the environment resistance, the weather resistance, the corrosion resistance, the low-temperature flexibility and the tear resistance are good.

Description

Technical Field

[0001] The utility model relates to the field of cable production and processing, in particular to a new type of underwater composite monitoring cable. Background Art

[0002] As an important communication and power transmission tool, underwater composite monitoring cables have been widely used in fields such as ocean engineering, military reconnaissance, and scientific research. With the progress of technology and the increase in demand, the technology of underwater composite monitoring cables is also constantly developing and improving. The underwater environment is complex and changeable, posing high requirements for the performance of the cables. For example, the cables need to have good waterproof performance to prevent moisture intrusion from damaging the insulation layer. In addition, underwater cables also need to have characteristics such as corrosion resistance, pressure resistance, and tensile resistance to cope with the complex seabed environment.

[0003] Traditional cables have some deficiencies when applied to the underwater environment, mainly including: insufficient waterproof performance, insufficient mechanical properties, and poor signal transmission stability. To overcome the deficiencies of traditional cables, researchers have developed many new materials and technologies. For example, using polymer waterproof materials, tin-plated aluminum-magnesium alloys and other materials to improve the waterproof and corrosion resistance of the cables. At the same time, using support members with a spiral annular structure to enhance the mechanical strength and flexibility of the cables.

[0004] Modern underwater composite monitoring cables are not just single power transmission or signal transmission tools, but integrated devices with multiple functions. For example, combining multiple components such as power lines, signal lines, and optical fibers together to achieve synchronous power supply and signal transmission. Therefore, in order to ensure the reliable operation of underwater composite monitoring cables in various complex environments, it is urgent to improve the waterproof, corrosion-resistant and mechanical properties of underwater composite monitoring cables, as well as the power and signal transmission quality.

[0005] To solve the above technical problems, this solution proposes a new type of underwater composite monitoring cable. Content of the Utility Model

[0006] The invention purpose of the utility model is to solve the problems that traditional cables have some deficiencies when applied to the underwater environment, ensure the reliable operation of underwater composite monitoring cables in various complex environments, and urgently improve the waterproof, corrosion-resistant and mechanical properties of underwater composite monitoring cables, as well as the power and signal transmission quality. This solution specifically solves as follows:

[0007] A new type of underwater composite monitoring cable includes at least one group of power lines and at least four groups of signal lines. All the signal lines are wrapped within the same Mylar layer. Multiple first filling members are filled in the gaps between the signal lines and between the signal lines and the inner wall of the Mylar layer, making the cross-section of the Mylar layer circular. The outer surface of the Mylar layer is successively provided with a second shielding layer and a first sheath from the inside to the outside. The power lines and the signal lines are wrapped within the same tape layer. Multiple second filling members are filled in the gaps between the power lines and between the power lines and the inner wall of the tape layer, making the cross-section of the tape layer circular. The outer surface of the tape layer is successively provided with an inner sheath, a waterproof layer, and an outer sheath from the inside to the outside.

[0008] Further, each group of the signal lines includes two signal core conductors. Each signal core conductor is stranded by multiple strands of tinned copper wires. A signal insulation layer is provided on the outer surface of each signal core conductor. Each group of the signal lines is wrapped with a first shielding layer.

[0009] Further, each group of the power lines includes two power core conductors. Each power core conductor is stranded by multiple strands of tinned copper wires. A power insulation layer is provided on the outer surface of each power core conductor.

[0010] Further, the first filling member is a waterproof cotton thread, and the Mylar layer is a high-temperature resistant Mylar.

[0011] Further, the second shielding layer is a tinned copper wire braided shielding wire, and the braiding density is ≥80%.

[0012] Further, the tape layer is a non-woven fabric wrapped around.

[0013] Further, the second filling member is a waterproof filling rope.

[0014] Further, the inner sheath, the outer sheath, and the first sheath are all TPU sheaths.

[0015] Further, the waterproof layer is a water-blocking tape wrapped around.

[0016] Further, the first shielding layer is aluminum foil.

[0017] In summary, adopting the technical solution of the present utility model has the following beneficial effects:

[0018] In this solution, at least one group of power lines and at least four groups of signal lines are combined in the same cable. Each group of signal lines is provided with aluminum foil as the first shielding layer. Between multiple groups of signal lines, a waterproof cotton thread is used as the first filling member for isolation and at the same time as a supplement to the interval structure strength, and multiple groups of signal lines and multiple first filling members together form a solid signal area circular body, which is then fixed by winding with high-temperature Mylar of the Mylar layer. Winding the high-temperature Mylar provides additional insulation and protection functions to enhance the performance and stability of the cable in a high-temperature environment. Outside the Mylar layer, a tinned copper wire braid is provided as the second shielding layer, which effectively prevents electrostatic interference, electromagnetic induction, crosstalk induction, and interference generated by other signal lines in the energy storage system, ensuring the normal operation of system transmission. Outside the second shielding layer, a first sheath made of TPU material is provided. It not only has high tensile strength and elongation at break, and can maintain good elasticity and toughness even at high hardness, but also has good oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility, and tear resistance. Between the power line group (referring to at least one group of power lines) and the signal line group (referring to at least four groups of signal lines) in this solution, multiple waterproof filling ropes are used as the second filling member for isolation and at the same time as a supplement to the interval structure strength, and the power line group, the signal line group, and multiple second filling members together form a solid composite area circular body, which is then wound with non-woven fabric outside the composite area circular body to form a strong tape layer, which can prevent the cable core from loosening or deforming when bent, ensuring the roundness and tightness of the cable core. Outside the tape layer, an inner sheath made of TPU material is provided, making the composite cable have good waterproofness, oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility, and tear resistance. Outside the inner sheath, a waterproof layer wrapped with a water-blocking tape is provided, which can prevent the cable from being eroded by moisture in an underwater or humid environment, thereby improving the water resistance and corrosion resistance of the cable and ensuring the electrical performance and service life of the cable. Outside the waterproof layer, an outer sheath made of TPU material is provided, further strengthening and improving the waterproofness, oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility, and tear resistance of the composite cable. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings in the following description are only a part of the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a cross-sectional structure schematic diagram of a new type of underwater composite monitoring cable of the present invention.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1 - Signal core conductor, 2 - Signal insulation layer, 3 - First shielding layer, 4 - First filler, 5 - Mylar layer, 6 - Second shielding layer, 7 - First sheath, 8 - Power core conductor, 9 - Power insulation layer, 10 - Second filler, 11 - Tape layer, 12 - Inner sheath, 13 - Waterproof layer, 14 - Outer sheath. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0024] As Figure 1 shown, a new type of underwater composite monitoring cable includes at least one group of power lines and at least four groups of signal lines. All the signal lines are wrapped in the same mylar layer 5. A plurality of first fillers 4 are filled in the gaps between the signal lines and between the signal lines and the inner wall of the mylar layer 5, so that the cross-section of the mylar layer 5 is circular. The outer surface of the mylar layer 5 is also successively provided with a second shielding layer 6 and a first sheath 7 from the inside to the outside. The power lines and the signal lines are wrapped in the same tape layer 11. A plurality of second fillers 10 are filled in the gaps between the power lines and between the power lines and the inner wall of the tape layer 11, so that the cross-section of the tape layer 11 is circular. The outer surface of the tape layer 11 is also successively provided with an inner sheath 12, a waterproof layer 13, and an outer sheath from the inside to the outside.

[0025] Specifically, each group of signal lines includes two signal core conductors 1. Each signal core conductor 1 is stranded by a plurality of tinned copper wires. The outer surface of each signal core conductor 1 is provided with a signal insulation layer 2, and its insulating material is high-density polyethylene (HDPE), which can not only provide good insulation performance but also resist the erosion of seawater and other harmful substances. Each group of signal lines is wrapped with a first shielding layer 3, and the cross-section of the first shielding layer 3 is drum-shaped. In this embodiment, preferably, there are four groups of signal lines, and each group of signal lines is evenly spaced along the radius of the circular cross-section of the mylar layer 5.

[0026] Specifically, each group of power lines includes two power core conductors 8. Each power core conductor 8 is stranded by a plurality of tinned copper wires. The outer surface of each power core conductor 8 is provided with a power insulation layer 9, and the power insulation layer 9 uses TPU insulating material, which has excellent impact resistance, load-bearing capacity, and cold resistance, can maintain stable performance in harsh environments, and also has oil resistance, water resistance, and chemical resistance, can effectively resist the erosion of various media, and extend the service life.

[0027] The core wire conductor is made of multiple strands of tinned copper wire twisted together and has good bending characteristics. The tinned copper wire has good electrical conductivity; the surface coating of the tinned copper wire can prevent the oxidation of copper, improve its anti-corrosion performance, and has good mechanical properties, capable of withstanding various physical impacts and abrasions.

[0028] Specifically, the first filling member 4 is a waterproof cotton thread, and the Mylar layer 5 is a high-temperature-resistant Mylar.

[0029] Specifically, the second shielding layer 6 is a tinned copper wire braided shield wire, and the braiding density is ≥80%.

[0030] Specifically, the tape layer 11 is wrapped with non-woven fabric.

[0031] Specifically, the second filling member 10 is a waterproof filling rope.

[0032] Specifically, the inner sheath 12, the outer sheath 14, and the first sheath 7 are all TPU sheaths.

[0033] Specifically, the waterproof layer 13 is wrapped with a water-blocking tape.

[0034] Specifically, the first shielding layer 3 is aluminum foil, which is mainly used to reduce the interference of external irrelevant signals on the transmitted signal to improve the stability of data transmission.

[0035] In the embodiments of this solution, the composite cable listed is suitable for use as a monitoring cable for underwater equipment, including a group of power lines and four groups of signal lines. This is only one application of this solution and does not limit this solution.

[0036] In summary, adopting the technical solution of the present utility model has the following beneficial effects:

[0037] In this solution, at least one group of power lines and at least four groups of signal lines are combined in the same cable. Each group of signal lines is provided with aluminum foil as the first shielding layer. Between multiple groups of signal lines, a waterproof cotton thread is used as the first filler to isolate them and at the same time supplement the strength of the spacer structure. And multiple groups of signal lines and multiple first fillers together form a solid signal area circular body, which is then fixed by winding high-temperature Mylar. Winding the high-temperature Mylar provides additional insulation and protection to enhance the performance and stability of the cable in a high-temperature environment. Outside the Mylar layer, a tinned copper wire braid is provided as the second shielding layer, which effectively prevents electrostatic interference, electromagnetic induction, crosstalk induction and interference generated by other signal lines in the energy storage system, ensuring the normal operation of the system transmission. Outside the second shielding layer, a first sheath made of TPU material is provided. It not only has high tensile strength and elongation at break, and can maintain good elasticity and toughness even under high hardness, but also has good oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility and tear resistance. Between the power line group (referring to at least one group of power lines) and the signal line group (referring to at least four groups of signal lines) in this solution, multiple waterproof filling ropes are used as the second filler to isolate them and at the same time supplement the strength of the spacer structure. And the power line group, the signal line group and multiple second fillers together form a solid composite area circular body, which is then wrapped with non-woven fabric outside the composite area circular body to form a strong tape layer, which can prevent the cable core from loosening or deforming when bent, ensuring the roundness and tightness of the cable core. Outside the tape layer, an inner sheath made of TPU material is provided, making the composite cable have good waterproofness, oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility and tear resistance. Outside the inner sheath, a waterproof layer wrapped with a water-blocking tape is provided, which can prevent the cable from being eroded by water in an underwater or humid environment, thereby improving the water resistance and corrosion resistance of the cable and ensuring the electrical performance and service life of the cable. Outside the waterproof layer, an outer sheath made of TPU material is provided, further strengthening and improving the waterproofness, oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility and tear resistance of the composite cable.

[0038] The above-described embodiments do not constitute a limitation on the protection scope of this technical solution. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the above embodiments shall be included within the protection scope of this technical solution.

Claims

1. A new type of underwater composite monitoring cable, characterized in that: It includes at least one group of power lines and at least four groups of signal lines. All the signal lines are wrapped within the same mylar layer. Multiple first filler pieces are filled in the gaps between the signal lines and between the signal lines and the inner wall of the mylar layer, making the cross-section of the mylar layer circular. From the inside to the outside, a second shielding layer and a first sheath are sequentially provided on the outer surface of the mylar layer. The power lines and the signal lines are wrapped within the same tape layer. Multiple second filler pieces are filled in the gaps between the power lines and between the power lines and the inner wall of the tape layer, making the cross-section of the tape layer circular. From the inside to the outside, an inner sheath, a waterproof layer, and an outer sheath are sequentially provided on the outer surface of the tape layer.

2. The novel underwater composite monitoring cable according to claim 1, wherein: Each group of the signal lines includes two signal core conductors. Each signal core conductor is stranded by multiple strands of tinned copper wires. A signal insulation layer is provided on the outer surface of each signal core conductor. A first shielding layer is wrapped outside each group of the signal lines.

3. The novel underwater composite monitoring cable according to claim 1, wherein: Each group of the power lines includes two power core conductors. Each power core conductor is stranded by multiple strands of tinned copper wires. A power insulation layer is provided on the outer surface of each power core conductor.

4. The novel underwater composite monitoring cable according to claim 1, characterized in that: The first filler pieces are waterproof cotton threads, and the mylar layer is a high-temperature-resistant mylar.

5. The novel underwater composite monitoring cable according to claim 1, wherein: The second shielding layer is a tinned copper wire braided shielding wire, and the braiding density is ≥80%.

6. The novel underwater composite monitoring cable according to claim 1, wherein: The tape layer is wrapped with non-woven fabric.

7. The novel underwater composite monitoring cable according to claim 1, wherein: The second filler pieces are waterproof filler ropes.

8. The novel underwater composite monitoring cable according to claim 1, wherein: The inner sheath, the outer sheath, and the first sheath are all TPU sheaths.

9. The novel underwater composite monitoring cable according to claim 1, wherein: The waterproof layer is wrapped with a water-blocking tape.

10. The novel underwater composite monitoring cable according to claim 2, wherein: The first shielding layer is aluminum foil.

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