Power cable capable of resisting acid and alkali

By using metal aluminum conductors, polyethylene insulating layer, polyurethane sheath layer and polymer water barrier layer in power cables, the problems of poor flexibility and insufficient acid and alkali resistance of the cable are solved, the flexibility and fire resistance of the cable are improved, the service life is extended, and the stability and safety of power transmission are ensured.

CN223273036UActive Publication Date: 2025-08-26胜华电缆科技(哈尔滨)股份有限公司
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Patent Information

Application Number
CN202420768440.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-15
Publication Date
2025-08-26
Estimated Expiration
2034-04-15

AI Technical Summary

Technical Problem

Existing power cables are poorly flexible, difficult to bend and install, have low fire resistance, and are not resistant to acid and alkali, resulting in insufficient safety and reliability.

Method used

A metal aluminum material with good conductivity is used as a conductor. A polyethylene insulating layer, a polyurethane sheath layer, a polymer water barrier layer and a cooling tube are arranged in sequence on the outside. A coolant cooling tube is wrapped around the inside, and a polyurethane sheath is connected to the drainage tank on the outside to improve flexibility and corrosion resistance.

Benefits of technology

It achieves good flexibility and bending performance of the cable, enhances fire resistance, improves the acid and alkali resistance and service life of the cable, and ensures the stability and reliability of power transmission.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223273036U_ABST
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Abstract

The utility model discloses an acid and alkali resistant power cable, which comprises a conductor, an insulating layer arranged on the outer side of the conductor, a sheath layer arranged on the outer side of the insulating layer, a waterproof layer arranged on the outer side of the sheath layer, a cooling pipe arranged on the inner side of the waterproof layer, and a sheath arranged on the outer side of the waterproof layer. According to the utility model, the sheath layer is made of a polyurethane material with relatively high softness, so that the cable has good flexibility and bending performance and is not easy to break or damage, which is very important for installation, wiring and maintenance of the cable, and damage and faults caused by bending of the cable can be reduced. And the cable adopts a corrosion-resistant, wear-resistant and high-temperature-resistant polyurethane material as the sheath layer, so that the corrosion of corrosive media such as acid and alkali can be effectively resisted. Therefore, the conductor and other internal parts can be protected from being influenced by corrosion, the service life of the cable is prolonged, and the stability and reliability of the whole power transmission system are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cable production, in particular to an acid and alkali resistant power cable. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. Composed of a conductor, insulation, sheath, and other accessories, power cables are primarily used to transmit and distribute electrical energy and have a wide range of applications. Power cables play a crucial role in transporting large amounts of electrical energy within power systems. They are used to transmit electricity generated by power plants from power plants to substations, as well as between substations. Power cables are widely used in building electrical systems to connect power supplies, lighting fixtures, sockets, and other electrical devices. They transmit electrical energy from the power source to various electrical devices, and they play a key role in the industrial sector. They are used to connect and power various mechanical equipment, motors, sensors, and other industrial equipment, ensuring reliable power transmission and supply during industrial production processes.

[0003] Existing traditional power cables are usually relatively rigid, difficult to bend and install, and lack flexible design, making them difficult to bend, wire and install. Acid and alkali resistant power cables have low fire resistance and cannot reduce the spread of flames and smoke generation in the event of a fire, reducing safety and reliability. Utility Model Content

[0004] The purpose of the utility model is to provide an acid and alkali resistant power cable to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: an acid- and alkali-resistant power cable, comprising a conductor, an insulating layer provided on the outside of the conductor, a sheath layer provided on the outside of the insulating layer, a water-blocking layer provided on the outside of the sheath layer, a cooling pipe provided on the inside of the water-blocking layer, a sheath provided on the outside of the water-blocking layer, and a drainage groove provided on the outside of the sheath.

[0006] Preferably, the conductor is made of aluminum metal with good electrical conductivity, and the conductor is tightly combined with other parts in sequence.

[0007] Preferably, the insulating layer is made of polyethylene material.

[0008] Preferably, the sheath layer is made of polyurethane material.

[0009] Preferably, the water-blocking layer is a polymer composite material.

[0010] Preferably, the cooling pipe is wound around the inner side of the water-blocking layer, and a coolant is provided in the cooling pipe.

[0011] Preferably, the sheath is made of a relatively soft polyurethane material, the sheath is connected to the drainage grooves via a card slot, and the drainage grooves are evenly arranged.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model adopts a relatively soft polyurethane material for the sheath layer, so that the cable has good flexibility and bending performance and is not easy to break or damage. This is very important for installing, wiring and maintaining cables, and can reduce damage and failures caused by cable bending.

[0014] Good anti-corrosion performance, the cable adopts corrosion-resistant, wear-resistant, and high-temperature resistant polyurethane material as the sheath layer, which can effectively resist the erosion of corrosive media such as acids and alkalis. This can protect the conductors and other internal parts from corrosion, extend the service life of the cable, and improve the stability and reliability of the entire power transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the water-blocking layer and cooling pipe structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present utility model.

[0018] Figure 4 This is a schematic diagram of the sheath structure of the present utility model.

[0019] In the figure: 1. Conductor; 2. Insulation layer; 3. Sheath layer; 4. Water-blocking layer; 5. Cooling pipe; 6. Sheath; 7. Drainage trough. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-4 The utility model provides an embodiment: an acid and alkali resistant power cable, comprising a conductor 1, an insulating layer 2 is provided on the outside of the conductor 1, a sheath layer 3 is provided on the outside of the insulating layer 2, a water-blocking layer 4 is provided on the outside of the sheath layer 3, a cooling pipe 5 is provided on the inside of the water-blocking layer 4, a sheath 6 is provided on the outside of the water-blocking layer 4, and a drainage groove 7 is provided on the outside of the sheath 6.

[0022] The conductor 1 is made of aluminum metal with good electrical conductivity, and the conductor 1 is tightly combined with other parts in sequence.

[0023] The insulating layer 2 is made of polyethylene material.

[0024] The sheath layer 3 is made of polyurethane material.

[0025] The water-blocking layer 4 is a polymer composite material.

[0026] The cooling pipe 5 is wound around the inner side of the water blocking layer 4 , and a coolant is provided in the cooling pipe 5 .

[0027] The sheath 6 is made of a relatively soft polyurethane material. The sheath 6 is connected to the drainage grooves 7 by a card slot, and the drainage grooves 7 are evenly arranged.

[0028] Working Principle: First, a highly conductive aluminum material is selected as conductor 1, which is then tightly integrated with other components. An insulating layer 2 is added above conductor 1, using polyethylene for insulation to isolate conductor 1 and prevent current leakage or short circuits. A corrosion-resistant and wear-resistant polyurethane material is applied to the right side of insulating layer 2 to provide additional mechanical and environmental protection. A water-blocking layer 4, made of a polymer composite material, is placed on the right side of conductor 1 to ensure the cable has good water-blocking properties. A cooling tube 5 is tightly wrapped around the inside of water-blocking layer 4, and coolant is injected into the cooling tube 5 to achieve a cooling effect on the cable. A sheath 6 layer 3, made of a soft polyurethane material that is corrosion-resistant, wear-resistant, and heat-resistant, is applied to the outside of water-blocking layer 4. The sheath 6 is connected to the drainage grooves 7 via a slot. Drainage grooves 7 are evenly arranged on the outside of the sheath 6 layer 3 to drain any liquid that may accumulate inside the cable, providing corrosion resistance, durability, waterproofing, and cooling functions.

[0029] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A power cable resistant to acid and alkali, comprising a conductor (1), characterized in that: An insulating layer (2) is provided on the outside of the conductor (1), a sheath layer (3) is provided on the outside of the insulating layer (2), a water-blocking layer (4) is provided on the outside of the sheath layer (3), a cooling pipe (5) is provided on the inside of the water-blocking layer (4), a sheath (6) is provided on the outside of the water-blocking layer (4), and a drainage groove (7) is provided on the outside of the sheath (6).

2. The acid and alkali resistant power cable according to claim 1, characterized in that: The conductor (1) is made of a metal aluminum material with good electrical conductivity, and the conductor (1) is tightly combined with other parts in sequence.

3. The acid and alkali resistant power cable according to claim 1, characterized in that: The insulating layer (2) is made of polyethylene material.

4. The acid and alkali resistant power cable according to claim 1, characterized in that: The sheath layer (3) is made of polyurethane material.

5. The acid and alkali resistant power cable according to claim 1, characterized in that: The water-blocking layer (4) is a polymer composite material.

6. The acid and alkali resistant power cable according to claim 1, characterized in that: The cooling pipe (5) is wound around the inner side of the water-blocking layer (4), and a cooling liquid is provided in the cooling pipe (5).

7. The acid and alkali resistant power cable according to claim 1, characterized in that: The sheath (6) is made of a relatively soft polyurethane material, the sheath (6) is connected to the drainage groove (7) via a card slot, and the drainage grooves (7) are evenly arranged.