Corrosion-resistant power cable

Abstract

The utility model belongs to the field of cables, particularly relates to a corrosion-resistant power cable, and aims to solve the problems that most of the conventional power cables are used outdoors and are easy to extrude in the installation process, and rainwater is easy to enter the cable after an outer protective layer is damaged, so that the interior of the cable is corroded, and the service life of the cable is shortened. According to the scheme, the cable comprises a plurality of wires, a wrapping tape used for wrapping the wires is arranged among the peripheries of the wires, an armor layer used for protecting the wires is arranged on the periphery of the wrapping tape, and an outer protective layer is arranged on the periphery of the armor layer; according to the utility model, after the outer protective layer is punctured, the water-absorbing swelling ointment can absorb water to swell and block a water leakage position, so that further corrosion by rainwater is avoided, the service life of the cable is prolonged, and the service life of the cable is prolonged. And meanwhile, the pressure borne by the arc-shaped pressing groove and the rubber belt is dispersed, so that the compression resistance effect of the cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a corrosion -resistant power cable. BACKGROUND

[0002] Power cable is used for transmission and distribution of electric energy cable, power cable is often used in urban underground power network, power station lead-out line, industrial and mining enterprise internal power supply and cross river and sea underwater power transmission line, in power line, the cable proportion is gradually increasing. Power cable is used for transmission and distribution of high -power electric energy cable product in the main line of power system, the existing power cable is mostly used outdoors in use, is easily extruded in the installation process, and rainwater is easy to enter into the cable inside after the outer sheath is damaged, and then corrodes the inside of cable, reduces the life of cable, and therefore a kind of corrosion -resistant power cable is presented. SUMMARY

[0003] The utility model discloses a kind of corrosion -resistant power cables to solve the shortcomings that the existing power cable in prior art is mostly used outdoors in use, is easily extruded in the installation process, and rainwater is easy to enter into the cable inside after the outer sheath is damaged, and then corrodes the inside of cable, reduces the life of cable.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of corrosion -resistant power cable, including multiple wires, multiple wires are provided with wrapping tape for covering wire between the periphery of multiple wires, the periphery of wrapping tape is provided with armored layer for protecting wire, the periphery of armored layer is provided with outer sheath;

[0006] The circumference of the armored layer is pressed with spiral pressure groove, the inside of pressure groove is arc-shaped, rubber belt is wound in the pressure groove, one side of rubber belt is attached to pressure groove, the outer diameter of rubber belt is greater than the outer diameter of armored layer, the rubber belt is located in the inside of outer sheath, water-absorbing expansion oil paste is arranged between the armored layer and outer sheath.

[0007] As a further scheme of the utility model, the outer ring of the rubber belt is provided with a plurality of communication grooves.

[0008] As a further scheme of the utility model, the wire includes core wire, the periphery of core wire is covered with insulating layer, the periphery of insulating layer is covered with shielding layer.

[0009] As a further scheme of the utility model, the periphery of wrapping tape is covered with water barrier layer, and the water barrier layer is located between the armored layer and wrapping tape.

[0010] As a further scheme of the utility model, wrapping tape is coated with fireproof coating inside.

[0011] As a further scheme of the utility model, a plurality of the wires are provided with filling ropes.

[0012] As a further scheme of the utility model, the outer protective layer and the water-proof layer are both made of polyethylene.

[0013] As a further scheme of the utility model, the fireproof coating is chlorinated paraffin coating.

[0014] As a further scheme of the utility model, the insulation layer is made of polyethylene.

[0015] In the application, the wires are used for conducting electricity, the rubber bands are used for buffering when the cable is compressed, the pressure received is dispersed by the arc-shaped pressure grooves, the compression effect of the cable is improved, the spiral pressure grooves are pressed on the periphery of the armored layer, the wires inside can be compressed tightly, the tightness between the wires is improved, the wires inside can be protected by the armored layer when the outer protective layer is pierced by a sharp object, further piercing is prevented, the water absorption and expansion grease can be water-absorbed and expanded when the cable is eroded by rainwater, the water leakage is blocked, further erosion of rainwater is avoided, and the service life of the cable is improved.

[0016] Advantages:

[0017] In the utility model, the water absorption and expansion grease and the rubber bands are arranged between the outer protective layer and the armored layer, the water absorption and expansion grease can be water-absorbed and expanded after the outer protective layer is pierced, the water leakage is blocked, further erosion of rainwater is avoided, and the service life of the cable is improved.

[0018] In the utility model, the water absorption and expansion grease and the rubber bands are arranged between the outer protective layer and the armored layer, the water absorption and expansion grease can be water-absorbed and expanded after the outer protective layer is pierced, the water leakage is blocked, further erosion of rainwater is avoided, and the service life of the cable is improved.

[0019] In the utility model, the water absorption and expansion grease and the rubber bands are arranged between the outer protective layer and the armored layer, the water absorption and expansion grease can be water-absorbed and expanded after the outer protective layer is pierced, the water leakage is blocked, further erosion of rainwater is avoided, and the service life of the cable is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model of a kind of corrosion-resistant electric power cable;

[0021] Figure 2 It is a sectional structure schematic view of the utility model of a kind of corrosion-resistant electric power cable;

[0022] Figure 3 A kind of wire section structure schematic diagram of corrosion-resistant electric power cable is proposed in the utility model;

[0023] Figure 4 A kind of structure schematic diagram of armour layer, rubber band of corrosion-resistant electric power cable is proposed in the utility model.

[0024] In the drawing: 1, wire;2, filling rope;3, outer sheath;4, armour layer;5, rubber band;6, water barrier layer;7, wrapping tape;8, fireproof coating;9, core wire;10, insulating layer;11, shielding layer;12, pressure groove;13, communication groove;14, water-absorbing expansion oil paste. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Embodiment 1

[0027] Referring to Figures 1-4 A kind of corrosion-resistant electric power cable, it includes: multiple wires 1, the periphery between multiple wires 1 is equipped with the wrapping tape 7 for covering wire 1, wrapping tape 7 is made of PVC plastic, avoid internal wire 1 loose, the periphery of wrapping tape 7 is provided with the armour layer 4 for protecting wire 1, armour layer 4 is aluminum alloy, it is well protected to its inside, the periphery of armour layer 4 is provided with outer sheath 3;

[0028] The circumference of armour layer 4 is pressed with spiral pressure groove 12, the inside of pressure groove 12 is arc, rubber band 5 is wound in pressure groove 12, one side of rubber band 5 is attached to pressure groove 12, the outer diameter of rubber band 5 is greater than the outer diameter of armour layer 4, the pressure received can be dispersed by the cooperation of arc-shaped pressure groove 12 and rubber band 5, improve the compression resistance of cable, rubber band 5 is located inside outer sheath 3, water-absorbing expansion oil paste 14 is arranged between armour layer 4 and outer sheath 3, outer sheath 3 is damaged, when being eroded by rainwater, water-absorbing expansion oil paste 14 can be water-absorbed and expanded, to seal the water leakage, to avoid further corrosion of rainwater, improve the life of cable.

[0029] Embodiment 2

[0030] Referring to Figures 1-4 On the basis of embodiment 1, a kind of corrosion-resistant electric power cable is improved,

[0031] In the utility model, the outer ring of rubber band 5 is provided with multiple communication grooves 13, which facilitates the flow of medium.

[0032] It should be noted that the wire 1 comprises a core wire 9, the periphery of the core wire 9 is coated with an insulating layer 10, the periphery of the insulating layer 10 is coated with a shielding layer 11, and the shielding layer 11 plays a role of shielding electromagnetic interference.

[0033] In particular, the periphery of the wrapping tape 7 is coated with a water-blocking layer 6, the water-blocking layer 6 is located between the armor layer 4 and the wrapping tape 7, and the water-blocking layer 6 further plays a water-blocking effect.

[0034] In the utility model, the wrapping tape 7 is coated with a fireproof coating 8 inside, and the fireproof coating 8 has a fireproof effect.

[0035] It should be noted that the filling rope 2 is provided between the plurality of wires 1, the filling rope 2 is made of polypropylene, keeps the roundness of the cable, and can also improve the tensile and swing resistance of the cable.

[0036] In particular, the outer protective layer 3 and the water-blocking layer 6 are both made of polyethylene.

[0037] In the utility model, the fireproof coating 8 is chlorinated paraffin paint.

[0038] It should be noted that the insulating layer 10 is made of polyethylene.

[0039] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A corrosion-resistant power cable, comprising a plurality of conductors (1), characterized in that, A wrapping tape (7) for covering the conductors (1) is provided between the peripheries of multiple conductors (1), an armor layer (4) for protecting the conductors (1) is provided around the wrapping tape (7), and an outer sheath (3) is provided around the armor layer (4). The armor layer (4) has a spiral groove (12) pressed around its circumference. The inside of the groove (12) is arc-shaped. A rubber strip (5) is wound inside the groove (12). One side of the rubber strip (5) is in contact with the groove (12). The outer diameter of the rubber strip (5) is larger than the outer diameter of the armor layer (4). The rubber strip (5) is located inside the outer protective layer (3). A water-absorbing and swelling grease (14) is provided between the armor layer (4) and the outer protective layer (3).

2. The corrosion-resistant power cable according to claim 1, characterized in that, The outer ring of the rubber belt (5) is provided with multiple connecting grooves (13).

3. The corrosion-resistant power cable according to claim 1, characterized in that, The conductor (1) includes a core wire (9), the core wire (9) is covered with an insulation layer (10), and the insulation layer (10) is covered with a shielding layer (11).

4. The corrosion-resistant power cable according to claim 1, characterized in that, The outer periphery of the wrapping tape (7) is covered with a water-proof layer (6), which is located between the armor layer (4) and the wrapping tape (7).

5. The corrosion-resistant power cable according to claim 1, characterized in that, The wrapping tape (7) is coated with a fire-retardant coating (8).

6. The corrosion-resistant power cable according to claim 1, characterized in that, A filler rope (2) is provided between the plurality of said conductors (1).

7. The corrosion-resistant power cable according to claim 1, characterized in that, Both the outer protective layer (3) and the waterproof layer (6) are made of polyethylene.

8. A corrosion-resistant power cable according to claim 5, characterized in that, The fireproof coating (8) is a chlorinated paraffin coating.

9. A corrosion-resistant power cable according to claim 3, characterized in that, The insulating layer (10) is made of polyethylene.

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