CN111415768A - A multipurpose cable for salt lake projects - Google Patents

Abstract

The invention discloses a multipurpose cable used in a salt lake project, which comprises a cable body, and the cable body includes a conductor layer, an inner sheath, an aramid yarn braided shielding layer, a reinforcing layer, a water blocking layer from the inside to the outside, A low temperature resistant layer and an outer sheath; wherein, the conductor layer includes a cable core elastic support, a ground wire core, a power line core, and a control wire group; the cable core elastic support is a quadrilateral elastic support with four sides concave and hollow, so A ground wire core and a filling rope are placed inside the elastic support of the cable core; three power wire cores and a control wire group are arranged in the inner recesses on the four sides of the elastic support of the cable core; the control wire group includes at least one control wire core and At least one communication core. The invention has the advantages of reasonable structure design, good waterproof effect, excellent anti-corrosion performance, etc., achieves a multi-purpose compound integrating power, control and communication functions, effectively solves the problem of single cable transmission, and can not only transmit high-power electric energy, but also Signal transmission can be carried out; and the torsional and tensile strength of the cable are enhanced through the central elastic support and reinforcement layer.

Description

A multipurpose cable for salt lake projects

technical field

The invention relates to the field of cables, in particular to a multipurpose cable used in a salt lake project.

Background technique

Salt is a very important chemical raw material and one of the necessities of people's lives. China has many inland lakes, and a considerable part of them have high salt content, such as Xinjiang Salt Lake, Inner Mongolia Alxa, Qinghai Lake, Shanxi Yuncheng, Tibet Namtso and other inland lakes, coupled with China's extremely long coastline, there are many large-scale enterprises engaged in salt production or salt chemical industry in Shandong, Jiangsu, Fujian, Guangdong, Guangxi and Hainan and other coastal provinces and cities in the Bohai Bay, but they all have the same Problem: As a power supply cable for transmitting electric energy, due to the use of buoy support, it is laid above the lake or seawater, and the surface of the cable is easy to form salt, and the knot will become thicker and thicker, which not only increases the weight of the cable, but also easily corrodes the cable, and affects the The heat dissipation of the cable can only reduce the current carrying capacity of the cable conductor and the service life of the cable, and the water entering the corroded cable will easily cause a short circuit of the line, cause equipment damage, and bring greater losses to people, and in order not to increase Due to the self-weight of the cable, most of the current cables have a single-core structure, which cannot meet the demand. In addition, with the development of technology, the cable not only needs to have the function of transmitting power, but also need to have the function of transmitting video surveillance, digital control signals, etc., and the existing cables have problems such as single transmission function and poor tensile performance.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide a multi-purpose cable for a salt lake project.

The present invention is realized by adopting the following technical solutions: a multi-purpose cable used in a salt lake project, which includes a cable body, and the cable body includes a conductor layer, an inner sheath, an aramid yarn braided shielding layer from the inside to the outside, A reinforcement layer, a water blocking layer, a low temperature resistant layer and an outer sheath; wherein, the conductor layer includes a cable core elastic support, a ground wire core, a power core, and a control wire group; the cable core elastic support is concave on four sides and A hollow quadrilateral elastic support, the cable core elastic support is placed inside the ground wire core and the filling rope; the inner recesses on the four sides of the cable core elastic support are provided with 3 power wire cores and a control wire group; the power wire core is composed of It includes a power line conductor, a power line insulation layer, and a power line shielding layer from the inside to the outside; the control line group includes at least one control wire core and at least one communication wire core, a control wire sheath, and a control wire shield from the inside to the outside. The control wire core includes a control wire conductor, a control wire insulating layer, and a wire core shielding layer from the inside out; the communication wire core includes a communication wire conductor, a control wire insulating layer, and a wire core shielding layer from the inside out; A layer of filling layer is arranged in the gap between the shielding layer of the control wire, the shielding layer of the power wire and the inner sheath; and a plurality of carbon fiber composite core rods are arranged around the inside of the low temperature resistant layer.

In the above-mentioned multi-purpose cable used in a salt lake project, the material of the elastic support of the cable core is a polyurethane elastomer.

In the above-mentioned multi-purpose cable used in a salt lake project, the shielding layer of the control wire and the shielding layer of the wire core are both metal mesh shielding layers woven from tinned copper wires and fibers after twisting.

The above-mentioned multi-purpose cable used in the salt lake project, the power line shielding layer is a common metal mesh shielding layer woven with tinned copper wire, or tinned copper wire and fiber are twisted and woven. metal mesh shield.

In the above-mentioned multi-purpose cable used in a salt lake project, the conductors are all stranded by a plurality of tinned annealed soft copper wires.

In the above-mentioned multipurpose cable used in a salt lake project, the inner sheath is a rubber sheath.

In the above-mentioned multi-purpose cable used in a salt lake project, the power line insulating layer and the control line insulating layer are both rubber insulating layers.

In the above-mentioned multi-purpose cable used in a salt lake project, the filling layer is made of buffer cotton material.

In the above-mentioned multi-purpose cable used in a salt lake project, the water blocking layer is formed by overlapping and wrapping high-strength water blocking tapes.

In the above-mentioned multi-purpose cable used in a salt lake project, the low temperature resistant layer is made of TPU material.

In the above-mentioned multi-purpose cable used in a salt lake project, the outer sheath is made of chlorosulfonated polyethylene material.

To sum up, the present invention has the following beneficial effects: the cable of the present invention has the advantages of reasonable structure design, good waterproof effect, excellent anti-corrosion performance, etc. The outer sheath is made of chlorosulfonated polyethylene material, so that the cable body is It has excellent waterproof performance and the ability to prevent salt formation on the surface of the cable body, which greatly prolongs the service life of the cable body. The multi-purpose compound that integrates communication functions effectively solves the problem of single cable transmission, which can not only transmit high-power electric energy but also carry out signal transmission; and through the center elastic support and reinforcement layer, enhance the torsional and tensile strength of the cable .

Description of drawings

Fig. 1 is the cross-sectional structure schematic diagram of the present invention;

Among them: 1. Cable core elastic support; 2. Ground wire core; 3. Power wire conductor; 4. Power wire insulation layer; 5. Power wire shielding layer; 6. Filling rope; 7. Control wire conductor; 8. Control wire Insulation layer; 9. Core shielding layer; 10. Communication wire conductor, 11. Control wire sheathing; 12. Control wire shielding layer; 13. Filling layer; 14. Inner sheath; 15. Aramid yarn braided shielding layer; 16. Reinforcing layer; 17. Water blocking layer; 18. Low temperature resistance; 19. Outer sheath; 20. Carbon fiber composite mandrel.

Detailed ways

As shown in Figure 1, a multi-purpose cable for salt lake project includes a cable body, which includes a conductor layer, an inner sheath 14, an aramid yarn braided shielding layer 15, and a reinforcing layer 16 from the inside to the outside , a water blocking layer 17, a low temperature resistant layer 18 and an outer sheath 19; wherein, the conductor layer includes a cable core elastic support 1, a ground wire core 2, a power wire core, and a control wire group; the cable core elastic support 1 is Four-sided concave and hollow quadrilateral elastic support, the cable core elastic support 1 is placed with a ground wire 2 and a filling rope 6 inside; the cable core elastic support 1 is provided with three power cores and a control Line group; the power line core includes a power line conductor 3, a power line insulating layer 4, and a power line shielding layer 5 from the inside out; the control line group includes at least one control line core and at least one Communication wire core, control wire sheath 11, control wire shielding layer 12; the control wire core includes control wire conductor 7, control wire insulating layer 8, wire core shielding layer 9 from the inside to the outside; the communication wire core is from the inside to the outside The outer part includes the communication wire conductor 10, the control wire insulating layer 8, and the wire core shielding layer 9; the control wire shielding layer 12, the power wire shielding layer 5 and the inner sheath 14 are provided with a layer of filling layer 13 in the gap; and , a plurality of carbon fiber composite core rods 20 are arranged around the inside of the low temperature resistant layer 18 .

The material of the cable core elastic support 1 is polyurethane elastomer, which has good elasticity and ensures the flexibility of the cable.

The control wire shielding layer 12 and the wire core shielding layer 9 are both metal mesh shielding layers formed by twisting tinned copper wires and fibers and then braiding.

The power line shielding layer 5 is a common metal mesh shielding layer woven with tinned copper wires, or a metal mesh shielding layer woven from tinned copper wires and fibers after twisting. The fibers may be glass fibers, ceramic fibers, or organic fiber materials, etc., which are twisted with tinned copper wires.

The conductor is formed by twisting a plurality of tinned annealed soft copper wires, and the surface of the copper wires is tinned to improve its corrosion resistance.

The filling layer 13 is made of buffer cotton material, which can effectively reduce the gap inside the cable body, and at the same time utilize the good plasticity of cotton materials to improve the stability of the cable

The inner protective layer 14 is a rubber sheath, the power line insulating layer 4 and the control line insulating layer 8 are both rubber insulating layers, and the rubber insulating layer is made of EPDM rubber insulating material, and its temperature resistance level is 85°C, It is soft and can withstand high voltage.

The reinforcing layer 16 can effectively prevent excessive bending of the conductor inside the cable, and even if the conductor 2 breaks, it will not affect the normal power supply of the device.

The water blocking layer 17 is formed by overlapping and wrapping high-strength water blocking tapes to prevent lake water from penetrating into the cable.

The low temperature resistant layer 18 is made of TPU material, so that the cable body can maintain excellent elasticity in a low temperature environment, has strong tensile resistance, and will not crack even under constant twisting.

The outer sheath 19 is made of chlorosulfonated polyethylene material, so that the cable body has excellent waterproof performance and the performance of preventing salt formation on the surface of the cable body, which greatly prolongs the service life of the cable body. The formula design of the outer sheath is the key to preventing salt formation. The formula of the outer sheath (weight percentage) is as follows: chlorosulfonated polyethylene 38; talc 8.5; nano-kaolin 20; silica 3.5; carbon black 2.5; chlorinated paraffin 14 ; TAIC1.2; Magnesium oxide 4; Paraffin 0.6; Stabilizer 1.2; Antimony trioxide 2; DCP 1.5~2;

The above are the embodiments of the present application, so all equivalent changes or modifications made according to the structures, features and principles described in the protection scope of the present application are all included in the protection scope of the present application.

Claims (10)

1. A multi-purpose cable for a salt lake project, which includes a cable body, which includes a conductor layer, an inner sheath, an aramid yarn braided shielding layer, a reinforcing layer, a water blocking layer, a low temperature resistance layer from the inside out. layer and outer sheath; wherein, the conductor layer includes a cable core elastic support, a ground wire core, a power core, and a control wire group; the cable core elastic support is a quadrilateral elastic support with four sides concave and hollow, and the cable core elastic support A ground wire core and a filling rope are placed inside the core elastic support; three power wire cores and a control wire group are arranged in the inner recesses on the four sides of the cable core elastic support; the power wire core includes power wire conductors, power wire Line insulation layer and power line shielding layer; the control line group includes at least one control line core and at least one communication line core, control line sheath, and control line shielding layer from the inside to the outside; the control line core is from the inside. The outside includes a control wire conductor, a control wire insulating layer, and a wire core shielding layer; the communication wire core includes a communication wire conductor, a control wire insulating layer, and a wire core shielding layer from the inside out; the control wire shielding layer, the power wire A layer of filling layer is arranged in the gap between the shielding layer and the inner sheath; and a plurality of carbon fiber composite core rods are arranged around the inside of the low temperature resistant layer. 2 . The multipurpose cable according to claim 1 , wherein the material of the elastic support of the cable core is polyurethane elastomer. 3 . 3. A kind of multipurpose cable for salt lake project according to claim 1, it is characterized in that: described control wire shielding layer and wire core shielding layer are both tinned copper wire and fiber twisted and braided. Metal mesh shield. 4. A kind of multi-purpose cable for salt lake project according to claim 1, it is characterized in that: described power line shielding layer is the metal mesh shielding layer that adopts common tinned copper wire braided, or plated A metal mesh shielding layer made of tin copper wire and fiber twisted and braided. 5 . The multipurpose cable for salt lake projects according to claim 1 , wherein the inner sheath is a rubber sheath. 6 . 6 . The multipurpose cable for a salt lake project according to claim 1 , wherein the power line insulating layer and the control line insulating layer are both rubber insulating layers. 7 . 7. A multipurpose cable for a salt lake project according to claim 1, wherein the filling layer is made of buffer cotton material. 8 . The multipurpose cable for a salt lake project according to claim 1 , wherein the water blocking layer is formed by overlapping and wrapping high-strength water blocking tapes. 9 . 9 . The multipurpose cable for a salt lake project according to claim 1 , wherein the low temperature resistant layer is made of TPU material. 10 . 10. A kind of multipurpose cable for salt lake project according to claim 1, it is characterized in that: described outer sheath is made of chlorosulfonated polyethylene material; outer sheath formula is shown as follows by weight percentage: Sulfonated polyethylene 38; talc 8.5; nano-kaolin 20; silica 3.5; carbon black 2.5; chlorinated paraffin 14; TAIC 1.2; magnesium oxide 4; paraffin 0.6; stabilizer 1.2; antimony trioxide 2; DCP 2; Melting polytetrafluoroethylene 2.5.

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