Waterproof high-temperature-resistant power cable

Abstract

The utility model discloses a waterproof high-temperature-resistant power cable, which relates to the technical field of power cables and comprises a cable tube, a plurality of copper cores are arranged in the cable tube, a fireproof layer is arranged on the outer side of the cable tube, a waterproof layer is arranged on the outer side of the fireproof layer, and a wear-resistant protective sleeve is arranged on the outer side of the waterproof layer. A cavity is formed between the waterproof layer and the wear-resistant protective sleeve; the reinforcing rings and the reinforcing ribs play a role in protecting the waterproof layer, the strength and the toughness of the waterproof layer can be enhanced, the phenomenon that the power cable is broken is avoided, the fireproof layer can play a role in flame retardance on fire, and continuous combustion of the fire is avoided; wherein the set metal wire mesh is high in ignition point and plays a role in binding the cable tube, so that the copper core in the cable tube is connected more tightly, and the set plaster tube is made of rubber tube coated plaster, so that the plaster tube has good elasticity and buffering performance, and damage to the cable tube caused by external force of the power cable is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a waterproof and high temperature resistant power cable. Background Art

[0002] Power cable refers to a cable used to transmit and deliver electric energy. Power cables are commonly used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. Power cables are an indispensable part of the development of electric power, and the quality of power cables also directly affects the development of electric power. Modern power cables have many defects. For example, modern power cables will overheat during the transmission process, and the resistance value will increase as the temperature rises, thereby increasing the loss of electric energy. A Chinese patent discloses a new type of wear-resistant, high-temperature, and waterproof power cable (authorization announcement number CN107705904A). The patented technology can use a three-layer co-extrusion extrusion method for the insulation layer to prevent the uneven electric field of the core and the gap between the shield and the insulation from causing partial discharge. Outside the insulation layer, a layer of glass fiber tape is wrapped between the copper wire shield and the polyurethane waterproof material to prevent the copper wire shield and the polyurethane material from being embedded in the outer screen during the high-temperature extrusion process, affecting the performance of the product. The multi-layer waterproof structure can improve the waterproof, high temperature resistance and wear resistance of the product during use. At the same time, the new product can be used in some high temperature resistant occasions such as metallurgy and steel. However, the bending resistance of the power cable in the above structure is low, which makes the cable easy to bend and cause damage to the cable. Therefore, the technical personnel in this field provide a waterproof and high temperature resistant power cable to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a waterproof and high temperature resistant power cable to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A waterproof and high temperature resistant power cable comprises a cable tube, wherein a plurality of copper cores are arranged inside the cable tube, a fireproof layer is arranged outside the cable tube, a waterproof layer is arranged outside the fireproof layer, a wear-resistant protective sleeve is arranged outside the waterproof layer, and a cavity is arranged between the waterproof layer and the wear-resistant protective sleeve.

[0006] As a further solution of the utility model: wherein, a flame retardant core is filled between the plurality of copper cores, and the copper core is formed by twisting a plurality of copper wires.

[0007] As a further solution of the utility model: wherein, the fireproof layer is made of fireproof clay, wherein a metal wire mesh is arranged inside the fireproof layer, and a plurality of clay tubes are fixedly connected between the metal wire meshes.

[0008] As a further solution of the utility model: wherein, the mastic tube is a hollow structure, and the mastic tube is located between the waterproof layer and the cable tube.

[0009] As a further solution of the utility model: wherein, a plurality of reinforcing ribs are fixedly connected to the outer side of the waterproof layer, and reinforcing rings are sleeved between the reinforcing ribs.

[0010] As a further solution of the utility model: wherein, the side of the wear-resistant protective sleeve adjacent to the waterproof layer is coated with a shielding layer, and the shielding layer is a silver-plated material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The wear-resistant protective sleeve can protect the cable pipe and prevent the power cable from being damaged due to wear. The waterproof layer can prevent water from penetrating into the inside of the power cable, thereby preventing the power cable from being short-circuited. The reinforcing ring and reinforcing ribs can protect the waterproof layer and enhance the strength and toughness of the waterproof layer to prevent the power cable from being broken. The fireproof layer can retard fire and prevent the fire from being continuously burned. The metal wire mesh has a high ignition point and restrains the cable pipe, making the copper core inside the cable pipe more tightly connected. The clay pipe is made of a rubber tube coated with clay, which results in the clay pipe having good elasticity and buffering properties, preventing the power cable from being damaged due to external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0015] Figure 3 This is a schematic diagram of Embodiment 1 of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0017] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0018] 1. Wear-resistant protective cover; 2. Waterproof layer; 201. Reinforcement ring; 202. Reinforcement rib; 203. Shielding layer; 3. Fireproof layer; 301. Clay tube; 4. Cable tube; 401. Flame retardant core; 402. Copper core. DETAILED DESCRIPTION

[0019] See also Figures 1 to 4: A waterproof and high-temperature resistant power cable, including a cable tube 4, a plurality of copper cores 402 are arranged inside the cable tube 4, a fireproof layer 3 is arranged on the outside of the cable tube 4, a waterproof layer 2 is arranged on the outside of the fireproof layer 3, a wear-resistant protective sleeve 1 is arranged on the outside of the waterproof layer 2, and a cavity is arranged between the waterproof layer 2 and the wear-resistant protective sleeve 1.

[0020] Preferably, a flame retardant core 401 is filled between the multiple copper cores 402, and the copper core 402 is formed by twisting multiple copper wires.

[0021] The flame retardant core 401 is provided to prevent the copper core 402 from being overheated, thereby preventing the flame retardant core 401 from burning.

[0022] Preferably, the fireproof layer 3 is made of fireproof clay, wherein a metal mesh is arranged inside the fireproof layer 3, and a plurality of clay tubes 301 are fixedly connected between the metal meshes.

[0023] The provided metal wire mesh has a high ignition point and plays a binding role on the cable tube 4, so that the copper core 402 inside the cable tube 4 is connected more tightly.

[0024] Preferably, the mastic tube 301 is a hollow structure, and the mastic tube 301 is located between the waterproof layer 2 and the cable tube 4 .

[0025] The provided mastic tube 301 is made of a rubber tube coated with mastic, so that the mastic tube 301 has good elasticity and buffering properties, thereby preventing the power cable from being damaged by external forces on the cable tube 4 .

[0026] Preferably, a plurality of reinforcing ribs 202 are fixedly connected to the outer side of the waterproof layer 2 , and reinforcing rings 201 are sleeved between the reinforcing ribs 202 .

[0027] The provided reinforcing ring 201 and reinforcing ribs 202 play a protective role on the waterproof layer 2, and can enhance the strength and toughness of the waterproof layer 2, thereby preventing the power cable from being broken.

[0028] Preferably, the side of the wear-resistant protective sleeve 1 adjacent to the waterproof layer 2 is coated with a shielding layer 203, and the shielding layer 203 is a silver-plated material.

[0029] The shielding layer 203 can prevent the wireless signal from interfering with the copper core 402, thereby causing circuit distortion.

[0030] Embodiment 1: Figure 3 The structure shown and Figure 2 The main structures are the same, except that the cable tube 4 is formed by twisting two cables.

[0031] Embodiment 2: Figure 4 The structure shown and Figure 2The main structure is the same, the difference is that the cable tube 4 is made of four cables twisted together

[0032] Working principle: the wear-resistant protective sleeve 1 can protect the cable tube 4 and prevent the power cable from being damaged due to wear. The waterproof layer 2 can prevent water from penetrating into the inside of the power cable, thereby preventing the power cable from being short-circuited. The reinforcing ring 201 and reinforcing ribs 202 can protect the waterproof layer 2 and enhance the strength and toughness of the waterproof layer 2 to prevent the power cable from being broken. The fireproof layer 3 can retard the fire and prevent the fire from being continuously burned. The metal wire mesh has a high ignition point and restrains the cable tube 4, so that the copper core 402 inside the cable tube 4 is more tightly connected. The clay tube 301 is made of a rubber tube coated with clay, so that the clay tube 301 has good elasticity and buffering properties, thereby preventing the power cable from being damaged due to external force.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof and high temperature resistant power cable, comprising a cable tube (4), characterized in that: A plurality of copper cores (402) are arranged inside the cable tube (4), a fireproof layer (3) is arranged on the outside of the cable tube (4), a waterproof layer (2) is arranged on the outside of the fireproof layer (3), a wear-resistant protective sleeve (1) is arranged on the outside of the waterproof layer (2), and a cavity is arranged between the waterproof layer (2) and the wear-resistant protective sleeve (1).

2. A waterproof and high temperature resistant power cable according to claim 1, characterized in that: A flame retardant core (401) is filled between the plurality of copper cores (402), and the copper core (402) is formed by twisting a plurality of copper wires.

3. A waterproof and high temperature resistant power cable according to claim 1, characterized in that: The fireproof layer (3) is made of fireproof clay, wherein a metal mesh is arranged inside the fireproof layer (3), and a plurality of clay tubes (301) are fixedly connected between the metal meshes.

4. A waterproof and high temperature resistant power cable according to claim 3, characterized in that: The mastic tube (301) is a hollow structure, and the mastic tube (301) is located between the waterproof layer (2) and the cable tube (4).

5. The waterproof and high temperature resistant power cable according to claim 1, characterized in that: A plurality of reinforcing ribs (202) are fixedly connected to the outer side of the waterproof layer (2), and reinforcements (201) are sleeved between the reinforcing ribs (202).

6. The waterproof and high temperature resistant power cable according to claim 1, characterized in that: The side of the wear-resistant protective sleeve (1) adjacent to the waterproof layer (2) is coated with a shielding layer (203), and the shielding layer (203) is a silver-plated material.

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