CN210167144U

CN210167144U - Flame-retardant, water-blocking and pressure-resistant cable for offshore wind power generation

Info

Publication number: CN210167144U
Application number: CN201920742207.4U
Authority: CN
Inventors: 李万松; 闵泽宇
Original assignee: Anhui Lingyu Cable Technology Co Ltd
Current assignee: Anhui Lingyu Cable Technology Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-03-20
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses an offshore wind power generation is with fire-retardant, block water, resistance to compression cable, including the cable core, the cable core includes support, ground wire and power line, the inside intermediate position of support is provided with the through-hole, the outside of support evenly is provided with 3 recesses. The utility model discloses a strengthen a steel wire spiral winding in the water-blocking tape outside, similar spring has certain bearing capacity, when the cable receives the extrusion, because strengthen steel wire two inside the filler, make the tubulose shell of the similar stereoplasm of filler, and strengthen two settings of steel wire in a reinforcing steel wire outside, make the extrusion action and strengthen steel wire one, can improve the compressive property of cable, prevent that the cable core from receiving destruction, simultaneously because heating calcium carbonate to 900 ℃ can decompose into quick lime and carbon dioxide under an atmospheric pressure, when meetting the conflagration, carbon dioxide can prevent the burning of flame, quick lime has certain thermal-insulated effect and quick lime can not burn, the melting point is 2580 ℃, can prevent the intensity of a fire from stretching, the protection cable core.

Description

Flame-retardant, water-blocking and pressure-resistant cable for offshore wind power generation

Technical Field

The utility model relates to the technical field, specificly relate to an offshore wind power generation is with fire-retardant, block water, resistance to compression cable.

Background

Cables are generally rope-like cables made up of several or groups of conductors (at least two in each group) stranded together, the conductors of each group being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering, for transmitting power or information from one location to another. The cable has the characteristics of internal electrification and external insulation, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable and a coaxial cable

With the continuous development of the industry in China and the development of the wind power generation in a daily and special way, the use amount of the cable is larger and larger, but the existing cable for the offshore wind power generation is weaker in compression resistance, insufficient in strength and poorer in flame retardance and water resistance, and the problems are actually and urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide an offshore wind power generation is with fire-retardant, block water, resistance to compression cable to solve the problem that proposes in the above-mentioned background art.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides an offshore wind power generation is with fire-retardant, block water, resistance to compression cable, includes the cable core, the cable core includes support, ground wire and power line, the intermediate position of support inside is provided with the through-hole, the outside of support evenly is provided with 3 recesses, the inside of through-hole is provided with the ground wire, the ground wire includes ground core conductor and the ground core insulating layer of parcel in the ground core conductor outside, recess position department is provided with the power line, the power line includes power core conductor and the power core insulating layer of parcel in the power core conductor outside, the outside of cable core is wrapped there is the water-blocking area, and is provided with the powder that blocks water between water-blocking area and the cable core, the outside of water-blocking area is provided with withstand voltage flame retardant coating, the outside of withstand voltage flame retardant coating is provided with, withstand voltage flame retardant coating includes the enhancement steel wire one of spiral winding in the water-blocking area outside, evenly sets up a plurality of enhancement steel wire A filler between the bands.

Preferably, the filler is calcium carbonate powder, and the particle size of calcium carbonate powder particles is 20-50 μm.

Preferably, the material of the bracket is PFPE material.

Preferably, the power wire core conductor is made of a scandium-aluminum alloy conductor, and the power wire core insulating layer and the ground wire core insulating layer are made of ethylene propylene diene monomer materials.

Preferably, the number of the second reinforcing steel wires is 20.

3. Advantageous effects

The utility model discloses a cable core includes the support, ground wire and power line, the intermediate position in the support sets up the through-hole, the outside that the inside of through-hole set up ground wire support evenly sets up 3 recesses, groove position department is provided with power line, realize to realize effective fixed to the sinle silk, through outside at the cable core around wrapping the water blocking tape, and set up the water blocking powder between water blocking tape and the cable core, the water blocking powder and the water blocking tape expand immediately when the cable meets water and prevent the cable intaking, through set up withstand voltage flame retardant coating in the outside of water blocking tape, the outside of withstand voltage flame retardant coating sets up the oversheath, withstand voltage flame retardant coating includes the reinforcing steel wire one that spiral winding outside the water blocking tape, along the circumferencial direction evenly set up a plurality of reinforcing steel wire two outside the water blocking tape and set up the filler between oversheath and water blocking tape, and the filler is calcium carbonate, reinforcing steel wire, similar spring has certain bearing capacity, when the cable receives the extrusion, at first the filler receives inside extrusion, because reinforcing steel wire two is inside the filler, make the similar stereoplasm's of filler tubulose shell, and reinforcing steel wire two sets up in reinforcing steel wire one outside, make the extrusion effect with reinforcing steel wire one on, can improve the compressive property of cable, prevent that the cable core from receiving destruction, simultaneously because heating calcium carbonate to 900 ℃ can decompose into quick lime (calcium oxide) and carbon dioxide under an atmospheric pressure, when meetting the conflagration, carbon dioxide can stop the burning of flame, quick lime has certain thermal-insulated effect and quick lime can not burn, the melting point is 2580 ℃, can prevent the intensity of a fire from spreading, protect the cable core.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: 1-reinforcing steel wire I, 2-power wire core conductor, 3-power wire core insulating layer, 4-bracket, 5-ground wire core insulating layer, 6-reinforcing steel wire II, 7-groove, 8-filler, 9-outer sheath, 10-water-blocking powder, 11-water-blocking tape, 12-through hole and 13-ground wire core conductor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

The flame-retardant, water-blocking and pressure-resisting cable for offshore wind power generation shown in figure 1 comprises a cable core, wherein the cable core comprises a support 4, a ground wire and a power wire, the support 4 is made of PFPE (Poly ethylene propylene polyethylene) material, a through hole 12 is formed in the middle of the inside of the

support

4, 3 grooves 7 are uniformly formed in the outer side of the support 4, the ground wire is arranged in the through hole 12 and comprises a ground wire core conductor 13 and a ground wire core insulating layer 5 wrapping the outer side of the ground wire core conductor 13, the power wire is arranged at the position of the groove 7 and comprises a power wire core conductor 2 and a power wire core insulating layer 3 wrapping the outer side of the power wire core conductor 2, the power wire core conductor 2 is made of scandium-aluminum alloy conductor, the power wire core insulating layer 3 and the ground wire core insulating layer 5 are made of ethylene propylene diene rubber material, a water-blocking tape 11, the outer side of the water blocking tape 11 is provided with a pressure-resistant fireproof layer, the outer side of the pressure-resistant fireproof layer is provided with an outer sheath 9, the pressure-resistant fireproof layer comprises a first reinforcing steel wire 1 spirally wound on the outer side of the water blocking tape 11, 20 second reinforcing steel wires 6 uniformly arranged on the outer side of the water blocking tape 11 along the circumferential direction, and a filler 8 arranged between the outer sheath 9 and the water blocking tape 11, the filler 8 is calcium carbonate powder, and the particle size of calcium carbonate powder particles is 20-50 mu m.

The working principle is as follows: because the through hole 12 is arranged in the middle of the inside of the bracket 4, the ground wire is arranged in the through hole 12, the 3 grooves 7 are uniformly arranged on the outer side of the bracket 4, the power wire is arranged at the position of the groove 7 to realize the effective fixation of the cable core, the water blocking tape 11 is wound on the outer side of the cable core, the water blocking powder 10 is arranged between the water blocking tape 11 and the cable core, the water blocking powder 10 and the water blocking tape 11 immediately expand to prevent the water from entering the cable when the cable encounters water, the reinforcing steel wire I1 is spirally wound on the outer side of the water blocking tape 11, the similar spring has certain bearing capacity, when the cable is extruded, the filler 8 is firstly extruded inwards, the filler 8 is enabled to be similar to a hard tubular shell because the plurality of reinforcing steel wires II 6 are arranged in the filler 8, and the reinforcing steel wire II 6 is arranged on the outer side of the reinforcing steel wire I1, the extrusion force acts on the reinforcing, the cable core is prevented from being damaged, meanwhile, the filler 8 is calcium carbonate, the calcium carbonate is heated to 900 ℃ under one atmosphere and can be decomposed into quicklime (calcium oxide) and carbon dioxide, when a fire hazard occurs, the carbon dioxide can prevent flame from burning, the quicklime has a certain heat insulation effect and can not burn, the melting point is 2580 ℃, the fire can be prevented from spreading, and the cable core is protected.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The flame-retardant, water-blocking and pressure-resisting cable for offshore wind power generation is characterized by comprising a cable core, wherein the cable core comprises a support (4), a ground wire and a power wire, a through hole (12) is formed in the middle of the inside of the support (4), 3 grooves (7) are uniformly formed in the outer side of the support (4), the ground wire is arranged in the through hole (12), the ground wire comprises a ground wire core conductor (13) and a ground wire core insulating layer (5) wrapped on the outer side of the ground wire core conductor (13), the power wire is arranged at the position of the groove (7), the power wire comprises a power wire core conductor (2) and a power wire core insulating layer (3) wrapped on the outer side of the power wire core conductor (2), a water-blocking tape (11) is wrapped on the outer side of the cable core, water-blocking powder (10) is arranged between the water-blocking tape (11) and the cable core, and a pressure-resisting, the outer side of the pressure-resistant fireproof layer is provided with an outer sheath (9), and the pressure-resistant fireproof layer comprises a first reinforcing steel wire (1) which is spirally wound on the outer side of the water blocking tape (11), a plurality of second reinforcing steel wires (6) which are uniformly arranged on the outer side of the water blocking tape (11) along the circumferential direction and a filler (8) which is arranged between the outer sheath (9) and the water blocking tape (11).

2. The cable of claim 1, wherein the filler (8) is calcium carbonate powder, and the particle size of the calcium carbonate powder particles is 20-50 μm.

3. The flame-retardant, water-blocking and pressure-resistant cable for offshore wind power generation according to claim 1, wherein the bracket (4) is made of PFPE material.

4. The cable as claimed in claim 1, wherein the power core conductor (2) is made of scandium-aluminum alloy, and the power core insulating layer (3) and the ground core insulating layer (5) are made of ethylene propylene diene monomer.

5. The flame-retardant, water-blocking and pressure-resistant cable for offshore wind power generation according to claim 1, wherein the number of the second reinforcing steel wires (6) is 20.