Fireproof high-temperature-resistant cable

Abstract

The utility model discloses a fireproof high-temperature-resistant cable which comprises a sheath and a protection mechanism. Insulating rubber sleeves are arranged in the middles of the inner arc surfaces of the sheaths, and conductive metal wires are arranged in the middles of the inner arc surfaces of the insulating rubber sleeves; the protection mechanism comprises a waterproof layer, an explosion-proof coating, a heat-resistant ceramic net and glass fiber cotton, the glass fiber cotton is arranged in a cavity formed in the sheath, the heat-resistant ceramic net is arranged in the middle of the inner arc surface of the glass fiber cotton, the explosion-proof coating is arranged in the middle of the inner arc surface of the heat-resistant ceramic net, the waterproof layer is arranged in the middle of the inner arc surface of the explosion-proof coating, and the heat-resistant ceramic net is arranged in the cavity. The protection mechanism further comprises a buffer layer, and the buffer layer is arranged between the middle part of the inner arc surface of the waterproof layer and the inner wall of the cavity. According to the fireproof high-temperature-resistant cable, the problem that the fireproof high-temperature-resistant cable leaks electricity due to the fact that the sheath is damaged by high temperature in the working process is solved; and the service life of the fireproof high-temperature-resistant cable is further prolonged.

Description

Technical Field

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

[0002] The function of cables is to transmit electrical energy from one place to another. Cables are widely used to transmit electricity from power plants to cities, industrial areas and residential areas. They carry high voltage and high current to deliver electricity to various facilities such as residences, commercial buildings, factories and public facilities.

[0003] The internal structure of the cable is usually composed of conductor, insulation layer, filler, shielding layer and sheath. The conductor is the core part of the cable, usually made of copper or aluminum. Its material and cross-sectional area determine the conductivity and current carrying capacity of the cable. The insulation layer is the layer that protects the conductor. Commonly used insulation materials include polyolefin, polytetrafluoroethylene, etc.

[0004] Most of the existing cable sheaths are made of materials with good acid and alkali resistance or oxidation resistance to prevent the external environment from causing corrosion damage to the cables. However, correspondingly, the high temperature resistance of these materials is relatively poor. During the operation, the cables are easily damaged by high temperature, resulting in cable leakage, which affects the transmission effect of the cables. For this reason, we propose a fire-proof and high-temperature resistant cable. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fireproof and high-temperature resistant cable. Through the coordinated arrangement of the heat-resistant ceramic mesh and the glass fiber cotton, the overall high-temperature resistance of the fireproof and high-temperature resistant cable is improved, and the problem of leakage of the fireproof and high-temperature resistant cable caused by damage to the sheath due to high temperature during operation is solved, the service life of the fireproof and high-temperature resistant cable is further improved, and the problems in the background technology can be effectively solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireproof and high temperature resistant cable, comprising a sheath and a protective mechanism;

[0007] Sheath: The middle of the inner arc surface is provided with an insulating rubber sleeve, and the middle of the inner arc surface of the insulating rubber sleeve is provided with a conductive metal wire;

[0008] Protection mechanism: it includes a waterproof layer, an explosion-proof coating, a heat-resistant ceramic mesh and glass fiber wool, the glass fiber wool is arranged in a cavity opened inside the sheath, a heat-resistant ceramic mesh is arranged in the middle of the inner arc surface of the glass fiber wool, an explosion-proof coating is arranged in the middle of the inner arc surface of the heat-resistant ceramic mesh, and a waterproof layer is arranged in the middle of the inner arc surface of the explosion-proof coating. Through the coordinated arrangement of the heat-resistant ceramic mesh and the glass fiber wool, the overall high-temperature resistance of the fire-resistant and high-temperature resistant cable is improved, the problem of leakage of the fire-resistant and high-temperature resistant cable caused by damage to the sheath due to high temperature during operation is solved, and the service life of the fire-resistant and high-temperature resistant cable is further improved.

[0009] Furthermore, the protection mechanism also includes a buffer layer, which is arranged between the middle part of the inner arc surface of the waterproof layer and the inner wall of the cavity, and can improve the ability of the sheath to buffer shock and pressure.

[0010] Furthermore, it also includes a filler, which is arranged between the sheath and the insulating rubber sleeve and can improve the high temperature resistance of the fireproof and high temperature resistant cable.

[0011] Furthermore, it also includes an anti-oxidation layer, which is arranged in an installation groove opened inside the insulating rubber sleeve. The anti-oxidation layer can effectively slow down the decomposition of the insulating rubber sleeve by the air after inflation, thereby increasing the service life of the insulating rubber sleeve.

[0012] Furthermore, it also includes a polyvinyl alcohol fiber layer, which is arranged in the middle of the inner arc surface of the anti-oxidation layer to improve the overall acid and alkali resistance of the fire-resistant and high-temperature resistant cable.

[0013] Furthermore, it also includes a resin film, which is arranged in the middle of the inner arc surface of the polyvinyl alcohol fiber layer. The resin film can further improve the airtightness of the insulating rubber sleeve and prevent the conductive metal wire from being damaged.

[0014] Furthermore, it also includes an anti-seepage membrane, which is arranged between the inner arc surface of the resin membrane and the inner wall of the installation groove, is corrosion-resistant, low-temperature-resistant, and frost-resistant, and can better protect the conductive metal wire.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The sheath is made of polyvinyl chloride, which has good corrosion resistance, acid and alkali resistance, and aging resistance. The buffer layer is an elastic buffer rubber, which improves the sheath's ability to buffer shock and pressure. The waterproof layer is a polyester tire layer, which can improve the waterproof effect of the sheath. The explosion-proof coating is a thermoplastic polyurethane elastomer rubber layer, which can improve the overall strength of the sheath. The heat-resistant ceramic mesh is a protective mesh made of high-temperature resistant ceramic material, which has high heat resistance, corrosion resistance and wear resistance. The glass fiber wool is made of glass balls or waste glass as raw materials through high-temperature melting, wire drawing, winding, weaving and other processes. It is an inorganic non-metallic material with excellent performance, good insulation, strong heat resistance, and good corrosion resistance. It can further improve the high temperature resistance of the sheath. Through the coordinated setting of the heat-resistant ceramic mesh and the glass fiber wool, the overall high temperature resistance of the fire-resistant and high temperature resistant cable is improved, and the problem of leakage of the fire-resistant and high temperature resistant cable caused by damage to the sheath due to high temperature during work is solved, and the service life of the fire-resistant and high temperature resistant cable is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The figure is a schematic diagram of the internal structure of the insulating rubber sleeve of the utility model.

[0019] In the figure: 1 sheath, 2 insulating rubber sleeve, 3 conductive metal wire, 4 filler, 5 protection mechanism, 51 buffer layer, 52 waterproof layer, 53 explosion-proof coating, 54 heat-resistant ceramic mesh, 55 glass fiber wool, 6 antioxidant layer, 7 polyvinyl alcohol fiber layer, 8 resin film, 9 anti-seepage membrane. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 , This embodiment provides a technical solution: a fireproof and high temperature resistant cable, comprising a sheath 1 and a protective mechanism 5;

[0022] Sheath 1: The middle of its inner arc surface is provided with an insulating rubber sleeve 2, and the middle of the inner arc surface of the insulating rubber sleeve 2 is provided with a conductive metal wire 3. The sheath 1 is made of polyvinyl chloride, which has good corrosion resistance, acid and alkali resistance, and aging resistance. The conductive metal wire 3 is made of copper or aluminum, and its material and cross-sectional area determine the conductive performance and current load capacity of the fireproof and high temperature resistant cable;

[0023] Protection mechanism 5: It includes a waterproof layer 52, an explosion-proof coating 53, a heat-resistant ceramic mesh 54 and glass fiber wool 55. The glass fiber wool 55 is arranged in the cavity opened inside the sheath 1. The middle part of the inner arc surface of the glass fiber wool 55 is provided with a heat-resistant ceramic mesh 54, the middle part of the inner arc surface of the heat-resistant ceramic mesh 54 is provided with an explosion-proof coating 53, and the middle part of the inner arc surface of the explosion-proof coating 53 is provided with a waterproof layer 52. The protection mechanism 5 also includes a buffer layer 51, which is arranged between the middle part of the inner arc surface of the waterproof layer 52 and the inner wall of the cavity. The buffer layer 51 is an elastic buffer rubber to improve the ability of the sheath 1 to buffer shock and pressure. The waterproof layer 52 is a polyester tire layer, which can improve the waterproof effect of the sheath 1. The explosion-proof coating 53 is a thermoplastic polyurethane elastomer rubber layer, which can provide The overall strength of the high sheath 1 is improved. The heat-resistant ceramic mesh 54 is a protective mesh made of high-temperature resistant ceramic material, which has high heat resistance, corrosion resistance and wear resistance. The glass fiber cotton 55 is made of glass balls or waste glass as raw materials through high-temperature melting, wire drawing, yarn winding, weaving and other processes. It is an inorganic non-metallic material with excellent performance, good insulation, strong heat resistance and good corrosion resistance. It can further improve the high temperature resistance of the sheath 1. Through the coordinated setting of the heat-resistant ceramic mesh 54 and the glass fiber cotton 55, the overall high temperature resistance of the fireproof and high temperature resistant cable is improved, and the problem of leakage of the fireproof and high temperature resistant cable caused by damage to the sheath 1 due to high temperature during operation is solved, and the service life of the fireproof and high temperature resistant cable is further improved.

[0024] Among them: it also includes a filler 4, which is arranged between the sheath 1 and the insulating rubber sleeve 2. The filler 4 is magnesium oxide, which is the most important insulating and high-temperature resistant filling material for fire-resistant and high-temperature resistant cables.

[0025] Among them: it also includes an anti-oxidation layer 6, which is arranged in an installation groove opened inside the insulating rubber sleeve 2. The anti-oxidation layer 6 is a graphene coating. The anti-oxidation layer 6 can effectively slow down the decomposition of the insulating rubber sleeve 2 by the air after inflation, thereby increasing the service life of the insulating rubber sleeve 2.

[0026] The polyvinyl alcohol fiber layer 7 is also included. The polyvinyl alcohol fiber layer 7 is arranged in the middle of the inner arc surface of the anti-oxidation layer 6. The polyvinyl alcohol fiber layer 7 is a synthetic fiber made of high-quality polyvinyl alcohol with high polymerization degree as raw material, and has high acid and alkali resistance.

[0027] Wherein: it also includes a resin film 8, which is arranged in the middle of the inner arc surface of the polyvinyl alcohol fiber layer 7. The resin film 8 can further improve the airtightness of the insulating rubber sleeve 3 and prevent the conductive metal wire 3 from being damaged.

[0028] Among them: it also includes an anti-seepage membrane 9, which is arranged between the inner arc surface of the resin membrane 8 and the inner wall of the installation groove. The anti-seepage membrane 9 is a polyethylene geomembrane. The polyethylene geomembrane has a small specific gravity, strong elongation, high adaptability to deformation, corrosion resistance, low temperature resistance, and frost resistance, and can better protect the conductive metal wire 3.

[0029] The working principle of a fireproof and high-temperature resistant cable provided by the utility model is as follows: before use, the fireproof and high-temperature resistant cable is moved to the designated work location. During operation, the fireproof and high-temperature resistant cable is connected to the corresponding transmission interface through a joint, and then electric energy is transmitted through the conductive metal wire 3. The conductive metal wire 3 is made of copper or aluminum, and its material and cross-sectional area determine the conductive performance and current load capacity of the fireproof and high-temperature resistant cable. The sheath 1 is made of polyvinyl chloride, which has excellent corrosion resistance, acid and alkali resistance, and aging resistance. The buffer layer 51 is an elastic buffer rubber, which improves the sheath 1's ability to buffer shock and pressure. The waterproof layer 52 is a polyester tire layer, which can improve the waterproof effect of the sheath 1. The explosion-proof coating 53 is a thermoplastic polyurethane elastomer rubber layer, which can improve the overall strength of the sheath 1. The heat-resistant ceramic mesh 54 is a protective mesh made of high-temperature resistant ceramic material, which has high heat resistance, corrosion resistance and wear resistance. The glass fiber cotton 55 is made of glass The insulating rubber sleeve 2 is made of spherical ball or waste glass as raw materials through high-temperature melting, wire drawing, yarn winding, weaving and other processes. It is an inorganic non-metallic material with excellent performance, good insulation, strong heat resistance and good corrosion resistance, and can further improve the high temperature resistance of the sheath 1. The filler 4 is magnesium oxide, which is the most important insulating and high temperature resistant filling material for fire-resistant and high temperature resistant cables. The antioxidant layer 6 is a graphene coating, which can effectively slow down the decomposition of the insulating rubber sleeve 2 by the air after inflation, and improve the service life of the insulating rubber sleeve 2. The polyvinyl alcohol fiber layer 7 is a synthetic fiber processed with high-quality polyvinyl alcohol with high polymerization degree as raw material, and has high acid and alkali resistance. The resin film 8 can further improve the airtightness of the insulating rubber sleeve 3 and prevent the conductive metal wire 3 from being damaged. The anti-seepage membrane 9 is a polyethylene geomembrane, which has a small specific gravity, strong elongation, high adaptability to deformation, corrosion resistance, low temperature resistance, and frost resistance, and can better protect the conductive metal wire 3.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fireproof and high temperature resistant cable, characterized in that: It comprises a sheath (1) and a protection mechanism (5); The sheath (1) has an insulating rubber sleeve (2) disposed in the middle of its inner arc surface, and a conductive metal wire (3) disposed in the middle of the inner arc surface of the insulating rubber sleeve (2); The protective mechanism (5) comprises a waterproof layer (52), an explosion-proof coating (53), a heat-resistant ceramic mesh (54) and glass fiber wool (55), wherein the glass fiber wool (55) is arranged in a cavity opened inside the protective sleeve (1), the heat-resistant ceramic mesh (54) is arranged in the middle of the inner arc surface of the glass fiber wool (55), the explosion-proof coating (53) is arranged in the middle of the inner arc surface of the heat-resistant ceramic mesh (54), and the waterproof layer (52) is arranged in the middle of the inner arc surface of the explosion-proof coating (53).

2. A fireproof and high temperature resistant cable according to claim 1, characterized in that: The protection mechanism (5) further comprises a buffer layer (51), wherein the buffer layer (51) is arranged between the middle portion of the inner arc surface of the waterproof layer (52) and the inner wall of the cavity.

3. The fireproof and high temperature resistant cable according to claim 1, characterized in that: It also comprises a filler (4), wherein the filler (4) is arranged between the sheath (1) and the insulating rubber sleeve (2).

4. The fireproof and high temperature resistant cable according to claim 1, characterized in that: It also comprises an anti-oxidation layer (6), wherein the oxidation layer (6) is arranged in a mounting groove opened inside the insulating rubber sleeve (2).

5. A fireproof and high temperature resistant cable according to claim 4, characterized in that: It also comprises a polyvinyl alcohol fiber layer (7), wherein the polyvinyl alcohol fiber layer (7) is arranged in the middle of the inner arc surface of the anti-oxidation layer (6).

6. A fireproof and high temperature resistant cable according to claim 5, characterized in that: It also comprises a resin film (8), wherein the resin film (8) is arranged in the middle of the inner arc surface of the polyvinyl alcohol fiber layer (7).

7. A fireproof and high temperature resistant cable according to claim 6, characterized in that: It also comprises an anti-seepage membrane (9), wherein the anti-seepage membrane (9) is arranged between the inner arc surface of the resin membrane (8) and the inner wall of the installation groove.

Images