CN219553291U - Tidal power generation cable - Google Patents

Abstract

The utility model discloses a tidal power generation cable. In order to solve the problems that the cable is easy to be impacted, corroded and the like when running in a seawater environment for a long time, the service life of the cable is shortened. According to the utility model, a plurality of cable wires are arranged in parallel around the axis of the armor layer, the insulating layers cover the cable wires, the outer sides of the insulating layers are mutually contacted, the waterproof layers cover the insulating layers on the outer sides of the cable wires, the armor layers cover the waterproof layers, the filling layers are arranged between the waterproof layers and the insulating layers, the structure is more stable, the insulating layers are anti-creeping and the filling layers increase the shock resistance and the resilience of the cable, the waterproof layers are prevented from leaking, the armor layers increase the shock resistance and the corrosion resistance of the cable, and the service life of the cable is greatly prolonged.

Description

Tidal power generation cable

Technical Field

The utility model relates to the technical field of cables, in particular to a tidal power generation cable.

Background

For tidal power cables, which are operated in seawater for a long period of time, impact and corrosion resistance, the cables are required to have excellent softness, torsion resistance, stretch resistance, impact resistance, water resistance and weather resistance, because it is difficult for general cables to meet these severe requirements. A tidal energy wave energy power generation cable, for example, application number 201721071731.0, comprising: the outer sides of the four elastic filling support bars are respectively provided with three main power units and one power unit. The scheme solves the problem of compression resistance of the tidal power cable, but still has the following defects: the arrangement of the four elastic filling support bars ensures that when the tidal wave energy power generation cable bears the change of tides, the stress direction changes to cause the dislocation of the elastic filling support bars to be difficult to recover, and the shock resistance and the resilience are poor.

Disclosure of Invention

In view of the above, the present utility model provides a tidal power generation cable.

The specific scheme of the utility model is as follows:

the utility model provides a tidal power generation cable, includes cable wire, insulating layer, filling layer, waterproof layer and armor, its characterized in that, a plurality of cable wires around armor axis parallel arrangement, insulating layer cladding cable wire, the mutual contact in insulating layer outside, insulating layer in the waterproof layer cladding cable wire outside, armor cladding waterproof layer, the filling layer is located between water blocking layer and the insulating layer. The cable wires are arranged in parallel around the axis of the armor layer, the insulating layer is anti-creeping, the filling layer increases the shock resistance recovery capability of the cable, the waterproof layer is water leakage-proof, and the armor layer increases the shock resistance of the cable.

Preferably, the number of cable conductors is three, and the three cable conductors are arranged in parallel around the axis of the armor layer. The axle center of cable wire is at equilateral triangle's extreme point respectively, and the structure is more firm.

Preferably, the insulating layers include an insulating layer a and an insulating layer B, the insulating layer a covering the cable wire, and the insulating layer B covering the insulating layer a. The arrangement of the double-layer insulating layer greatly improves the anti-creeping performance of the cable and prolongs the service life of the cable.

Preferably, the insulating layer a is a rubber insulating layer, and the insulating layer B is a composite insulating layer. The rubber insulating layer is an ethylene propylene rubber insulating layer, the composite insulating layer is a nylon 12 insulating layer, the propylene rubber has excellent electrical performance, the nylon 12 has excellent protective performance, and the composite insulating layer is used as an outer protective layer of the insulating layer, can perform short-distance space sliding under strong seawater impact due to good self lubricating performance, and has a buffering effect and can resist distortion.

Preferably, the filling layer comprises reinforcing ribs and fillers, the reinforcing ribs are arranged between adjacent cable wires, and the fillers are arranged between the insulating layer and the waterproof layer. The reinforcing ribs are buried in the filler, the reinforcing ribs are arranged between adjacent cable wires, and the structure is more stable.

Preferably, the reinforcing ribs are fiber reinforcing ribs and the filler is rubber filler. The filling material is filled by ethylene propylene rubber strips, KEVLAR fibers are added in the rubber strips, the flexibility of the cable is increased to the greatest extent on the premise of packaging tensile strength, and the ethylene propylene rubber strips have excellent water resistance, and can achieve excellent waterproof performance after being tightly filled.

Preferably, the waterproof layer comprises a wrapping layer, a waterproof layer A and a waterproof layer B, wherein the wrapping layer is used for wrapping the insulating layer, the waterproof layer A is used for wrapping the wrapping layer, and the waterproof layer B is used for wrapping the waterproof layer A. The waterproof performance of the cable is greatly improved by the arrangement of the double-layer waterproof layer, and the service life of the cable is prolonged.

Preferably, the waterproof layer A is a composite belt waterproof layer, and the waterproof layer B is a linear low-density waterproof layer. The composite belt waterproof layer is an aluminum-plastic composite belt, the linear low-density waterproof layer is a polyethylene composite waterproof layer, and the composite waterproof layer has good waterproof performance.

Preferably, the armor layer comprises a protective layer and an outer protective layer, the protective layer coats the waterproof layer, and the outer protective layer coats the protective layer. The protective layer is an aluminum alloy belt, so that the seawater impact force in the using process can be effectively relieved, a good protective effect is achieved on the insulating layer, the outer protective layer is made of chlorinated polyethylene materials, and the material is environment-friendly, safe, wear-resistant and soft and has an excellent seawater corrosion prevention function and weather resistance.

Preferably, the protective layer is a chain armor protective layer. Compared with the traditional steel belt or steel wire armor, the interlocking armor has better compression resistance effect, can effectively relieve the impact force of seawater in the use process, and has good protection effect on the insulating layer.

The beneficial effects of the utility model are as follows: the utility model provides a corrosion-resistant waterproof power cable for tidal power generation, three cable wire is around armor axis parallel arrangement, and the axle center of cable wire is at equilateral triangle's extreme point respectively, and the structure is more firm. The cable conductor is provided with the ethylene propylene rubber insulating layer and the nylon 12 insulating layer, the propylene rubber has excellent electrical performance, the nylon 12 has excellent protective performance, and the cable conductor is used as an outer protective layer of the insulating layer, has good self-lubricating performance, can perform short-distance space sliding under strong seawater impact, plays a role in buffering, and can resist twisting. The filling material is filled by ethylene propylene rubber strips, KEVLAR fibers are added in the rubber strips, the flexibility of the cable is increased to the greatest extent on the premise of packaging tensile strength, and the ethylene propylene rubber strips have excellent water resistance, and can achieve excellent waterproof performance after being tightly filled. The aluminum-plastic composite belt and the polyethylene waterproof layer are arranged outside the armor layer, the aluminum alloy interlocking armor layer is arranged outside the waterproof layer, so that the shock resistance of the cable can be greatly enhanced, and the chlorinated polyethylene outer protective layer is arranged outside the armor layer, so that seawater corrosion can be effectively prevented.

Drawings

FIG. 1 is a tidal power generation cable;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

in the figure: 1, a cable wire; 2 an insulating layer; 2.1 insulating layer a;2.2 composite insulating layer B;3, filling a layer; 3.1 reinforcing ribs; 3.2 filler; 4, a waterproof layer; 4.1 wrapping the layer; 4.2 waterproof layer A;4.3 waterproof layer B;5 armor layers; 5.1 protecting layer; 5.2 outer sheath.

Detailed Description

Embodiment one:

as shown in FIG. 1, the innermost ring of the tidal power generation cable is formed by arranging three cable wires 1 in parallel with the axle center of an armor layer 5 as the center, the axle centers of the three cable wires are respectively arranged at three endpoints of an equilateral triangle, the outer side of each cable wire is coated with an insulating layer 2, the insulating layers on the outer sides of the three cable wires are mutually contacted, the outer sides of the insulating layers are coated with a waterproof layer 4, a filling layer 3 is filled between the waterproof layer and the insulating layers, three reinforcing ribs 3.1 are buried in the filling layer, the axle centers of the three reinforcing ribs are respectively arranged at three endpoints of the equilateral triangle, the reinforcing ribs are arranged between the adjacent cable wires, and the outer sides of the waterproof layers are coated with the armor layer 5.

As shown in fig. 2, the insulating layer outside the cable wire is divided into two layers, the insulating layer a2.1 is close to the cable wire, the composite insulating layer B2.2 is coated outside the insulating layer a, the filling layer between the insulating layer and the waterproof layer is divided into a filler 3.2 and a reinforcing rib 3.1, the reinforcing rib is embedded in the filler, the waterproof layer is divided into three layers, namely a wrapping layer 4.1, a waterproof layer a4.2 and a waterproof layer B4.3, the wrapping layer wraps the filling layer and the insulating layer, the waterproof layer a is arranged outside the wrapping layer, the waterproof layer B is arranged outside the waterproof layer a, the armor layer is wrapped outside the waterproof layer, the armor layer is divided into a protective layer 5.1 and an outer protective layer 5.2, the protective layer wraps the waterproof layer, and the outer protective layer wraps the protective layer.

The specific implementation process comprises the following steps:

1. firstly, an oxygen-free copper rod multi-head wire drawing machine is pulled to form a soft copper wire, KEVLAR fibers are added in the soft copper wire bundle wire process, the tensile strength of conductor strands is increased, and the strands are stranded into a cable wire in the same direction by using a cable former.

2. A layer of propylene rubber insulation was extruded using a SJ 90X 50 continuous vulcanization line (rubber extruder).

3. And extruding a nylon 12 protective insulating layer with the thickness of 0.5-0.8 mm on the SJ 150X 65 extruder.

4. 1600 cable forming machines are needed in the cable forming process, ethylene propylene rubber strips used in the cable forming process are formed by extruding through a 90+50 rubber extruder, twisted KEVLAR fiber reinforcing ribs are needed to be added to the central layer of the rubber strips during the extruding of the ethylene propylene rubber strips, the extruded shape is required to be satisfied, the ethylene propylene rubber strips are completely filled around the cable, the cable is filled round, a layer of light non-woven fabric is wrapped after filling, and the cable forming pitch diameter ratio is 20-30 times.

5. After wrapping the non-woven fabric, extruding and wrapping a layer of polyethylene waterproof layer by using an SJ 150X 65 sheath production line (an extruding machine), wherein the extruded and wrapped polyethylene waterproof layer is a composite aluminum-plastic belt with the thickness of 0.3 mm, and the composite waterproof layer can play a role in good waterproof performance.

6. The armor inoxidizing coating adopts 0.21 mm aluminum alloy area, uses chain armoring machine to armour, and chain armoring possesses better compressive effect than traditional steel band or steel wire armor, can effectively alleviate the sea water impact force in the use, plays fine protection effect to the insulating layer.

7. The anti-corrosion outer protective layer is made of chlorinated polyethylene material, and the material can be extruded by an SJ150 multiplied by 90 (rubber extruder), is environment-friendly, safe, wear-resistant and soft, and has excellent seawater corrosion resistance and weather resistance.

In conclusion, the cable integrates the performances of softness, torsion resistance, stretch resistance, impact resistance, water resistance, weather aging resistance and the like, and can be widely applied to a tidal power generation power system.

Embodiment two:

the innermost ring of the cable is formed by arranging four cable wires in parallel with the axis of the armor layer as the center, the axes of the four cable wires are respectively at four end points of a square, and the rest is the same as the first embodiment.

Claims (7)

1. The tidal power generation cable comprises cable wires (1), an insulating layer (2), a filling layer (3), a waterproof layer (4) and an armor layer (5), and is characterized in that a plurality of cable wires are arranged in parallel around the axis of the armor layer, the insulating layer coats the cable wires, the outer sides of the insulating layer are in contact with each other, the waterproof layer coats the insulating layer on the outer sides of the cable wires, the armor layer coats the waterproof layer, and the filling layer is arranged between the waterproof layer and the insulating layer; the insulation layer (2) comprises an insulation layer A (2.1) and an insulation layer B (2.2), wherein the insulation layer A (2.1) coats the cable wire (1), and the insulation layer B (2.2) coats the insulation layer A (2.1); the insulating layer A (2.1) is a rubber insulating layer, and the insulating layer B (2.2) is a composite insulating layer; the waterproof layer (4) comprises a wrapping layer (4.1), a waterproof layer A (4.2) and a waterproof layer B (4.3), wherein the wrapping layer (4.1) is wrapped with the insulating layer (2), the waterproof layer A (4.2) is wrapped with the wrapping layer (4.1), and the waterproof layer B (4.3) is wrapped with the waterproof layer A (4.2).

2. A tidal power generation cable according to claim 1, wherein the number of cable conductors is three, the three cable conductors (1) being arranged in parallel around the axis of the armour layer (5).

3. A tidal power generation cable according to claim 1, wherein the filler layer (3) comprises reinforcing ribs (3.1) and fillers (3.2), the reinforcing ribs (3.1) are arranged between adjacent cable conductors (1), and the fillers (3.2) are arranged between the insulating layer (2) and the waterproof layer (4).

4. A tidal power generation cable according to claim 3, wherein the reinforcing ribs (3.1) are fiber reinforcing ribs and the filler (3.2) is a rubber filler.

5. The tidal power generation cable according to claim 1, wherein the waterproof layer a (4.2) is a composite tape waterproof layer, and the waterproof layer B (4.3) is a linear low-density waterproof layer.

6. A tidal power generation cable according to claim 1 or 2 or 3 or 4 or 5, wherein the armouring layer (5) comprises a protective layer (5.1) and an outer sheath (5.2), the protective layer (5.1) covering the waterproof layer (4), the outer sheath (5.2) covering the protective layer (5.1).

7. A tidal power generation cable according to claim 6, wherein the protective layer (5.1) is a interlocked armor protective layer.