Novel coal safety explosion-proof video monitoring power cable

Abstract

The utility model discloses a novel coal safety explosion-proof video monitoring power cable, and relates to the technical field of cables, the novel coal safety explosion-proof video monitoring power cable comprises a cable core, an insulating layer is arranged outside the cable core, a winding layer I is arranged outside the insulating layer, a shielding layer is arranged outside the winding layer I, and an oxygen barrier layer I is arranged outside the shielding layer; an explosion-proof layer is arranged outside the first oxygen isolation layer. The insulating layer, the first winding layer, the first oxygen isolation layer, the second winding layer and the second oxygen isolation layer are arranged outside the cable core so that the flame retardant effect of the cable can be improved, the shielding layer is arranged so that the anti-electromagnetic wave interference performance of the cable in use can be enhanced, and the anti-explosion layer and the compression-resistant layer are arranged so that the tensile resistance and the anti-explosion performance of the cable can be enhanced. The cable is not easy to be damaged by external force in use, the overall safety and reliability of the cable are improved through the arrangement of the outer protection layer, and the cable has certain durability in a coal mine.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a novel power cable for explosion-proof video surveillance in coal mines. Background Technology

[0002] A cable is an electrical energy or signal transmission device, typically composed of several or groups of conductors. Cables are commonly used in a wide variety of environments, such as those in explosive environments like coal mines. Their main function is to transmit electrical signals, ensuring the normal operation of electrical equipment in coal mines, including the power and signal transmission required by lighting, communication, and monitoring equipment. Due to the presence of explosive gases or dust in coal mine environments, cables have special explosion-proof properties, preventing the generation of sparks or electric arcs in the event of an explosion, thus avoiding larger explosion accidents. Furthermore, coal mine environments are typically harsh, with conditions such as high temperature, high humidity, and corrosion.

[0003] The shortcomings of existing technology are that when cables are used in coal mining environments, due to the presence of explosive gases or dust, they have special explosion-proof properties that can prevent the generation of sparks or electric arcs in the event of an explosion, thereby avoiding larger explosion accidents. Summary of the Invention

[0004] The purpose of this invention is to provide a new type of power cable for explosion-proof video surveillance in coal mines, so as to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel power cable for explosion-proof video surveillance in coal mines, comprising a cable core, an insulation layer disposed on the outside of the cable core, a first winding layer disposed on the outside of the insulation layer, a shielding layer disposed on the outside of the first winding layer, an oxygen barrier layer disposed on the outside of the shielding layer, an explosion-proof layer disposed on the outside of the first oxygen barrier layer, a second winding layer disposed on the outside of the explosion-proof layer, an oxygen barrier layer disposed on the outside of the winding layer, a pressure-resistant layer wound on the outside of the second oxygen barrier layer, and an outer sheath disposed on the outside of the pressure-resistant layer.

[0006] As a further description of the above technical solution:

[0007] The cable core is a monitoring radio frequency line, and the insulation layer is made of multiple insulated wire cores twisted and wound together.

[0008] As a further description of the above technical solution:

[0009] Both the first and second winding layers are made of glass fiber wrapping tape, and both the first and second oxygen barrier layers are made of nanomaterials.

[0010] As a further description of the above technical solution:

[0011] The shielding layer is made of copper mesh material, and the explosion-proof layer is made of galvanized steel wire material.

[0012] As a further description of the above technical solution:

[0013] The pressure-resistant layer is made of galvanized steel strip, and the outer protective layer is made of low-smoke halogen-free flame-retardant polyolefin material.

[0014] In the above technical solution, the novel power cable for coal mine safety explosion-proof video monitoring provided by the present invention has the following beneficial effects:

[0015] This invention utilizes the interplay of a cable core, insulation layer, first winding layer, shielding layer, first oxygen barrier layer, explosion-proof layer, second winding layer, second oxygen barrier layer, compression-resistant layer, and outer sheath. The insulation layer, first winding layer, first oxygen barrier layer, second winding layer, and second oxygen barrier layer are all designed to enhance the cable's flame-retardant effect. The shielding layer enhances the cable's resistance to electromagnetic interference. The explosion-proof and compression-resistant layers increase the cable's tensile strength and explosion-proof performance, making it less susceptible to damage from external forces during use. The outer sheath improves the overall safety and reliability of the cable, providing it with durability in coal mines.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0017] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is an exploded view of the cable structure provided in an embodiment of the present invention;

[0020] Figure 2 This is a longitudinal sectional view of the cable structure provided in an embodiment of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] 1. Cable core; 2. Insulation layer; 3. Wrapping layer one; 4. Shielding layer; 5. Oxygen barrier layer one; 6. Explosion-proof layer; 7. Wrapping layer two; 8. Oxygen barrier layer two; 9. Compression-resistant layer; 10. Outer sheath. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0024] Please see Figure 1-3 This embodiment provides a novel power cable for coal mine safety explosion-proof video monitoring, comprising a cable core 1, an insulation layer 2 on the outside of the cable core 1, a first winding layer 3 on the outside of the insulation layer 2, a shielding layer 4 on the outside of the first winding layer 3, an oxygen barrier layer 5 on the outside of the shielding layer 4, an explosion-proof layer 6 on the outside of the oxygen barrier layer 5, a second winding layer 7 on the outside of the explosion-proof layer 6, an oxygen barrier layer 8 on the outside of the winding layer, a compression-resistant layer 9 wound around the oxygen barrier layer 8, and an outer sheath 10 on the outside of the compression-resistant layer 9. The insulation layer 2, the first winding layer 3, the first oxygen barrier layer 5, the second winding layer 7, and the second oxygen barrier layer 8 on the outside of the cable core 1 are all designed to increase the flame-retardant effect of the cable. The shielding layer 4 is designed to enhance the cable's resistance to electromagnetic interference during use. The explosion-proof layer 6 and the compression-resistant layer 9 are designed to increase the cable's tensile strength and explosion-proof performance, making the cable less susceptible to damage from external forces during use. The outer sheath 10 is designed to improve the overall safety and reliability of the cable.

[0025] In a further embodiment of the present invention, the cable core 1 is a monitoring radio frequency line, and the insulation layer 2 is formed by twisting and winding multiple insulated wire cores. The insulated wire cores have a certain flame retardancy, and when multiple insulated wire cores are twisted and wound around the outside of the cable core 1, they can achieve a good flame retardant effect.

[0026] In a further embodiment of the present invention, both the first winding layer 3 and the second winding layer are made of glass fiber wrapping tape, and both the first oxygen barrier layer 5 and the second oxygen barrier layer 8 are made of nanomaterials. Specifically, the nanomaterials can be diamond mud refractory mineral oxygen barrier material. This material expands when heated to form a porous, highly foamed thermal resistance material, which has excellent flame retardant, fire resistant, fireproof and fireproof properties. It can maintain the integrity and electrical performance of the cable in a fire and ensure the stability of power supply in emergency situations.

[0027] In a further embodiment of the present invention, the shielding layer 4 is made of copper mesh material, and the explosion-proof layer 6 is made of galvanized steel wire material.

[0028] In a further embodiment of the present invention, the compression-resistant layer 9 is made of galvanized steel strip material, and the outer protective layer 10 is made of low-smoke halogen-free flame-retardant polyolefin material.

[0029] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel explosion-proof power cable for coal mine safety video surveillance, comprising a cable core (1), characterized in that: The cable core (1) is provided with an insulation layer (2) on the outside, a first winding layer (3) is provided on the outside of the insulation layer (2), a shielding layer (4) is provided on the outside of the first winding layer (3), an oxygen barrier layer (5) is provided on the outside of the shielding layer (4), an explosion-proof layer (6) is provided on the outside of the oxygen barrier layer (5), a second winding layer (7) is provided on the outside of the explosion-proof layer (6), an oxygen barrier layer (8) is provided on the outside of the winding layer, a pressure-resistant layer (9) is wound on the outside of the oxygen barrier layer (8), and an outer protective layer (10) is provided on the outside of the pressure-resistant layer (9).

2. The novel explosion-proof power cable for coal mine safety video surveillance according to claim 1, characterized in that, The cable core (1) is a monitoring radio frequency line, and the insulation layer (2) is formed by twisting and winding multiple insulated wire cores.

3. The novel explosion-proof power cable for coal mine safety video surveillance according to claim 1, characterized in that, Both the first winding layer (3) and the second winding layer are made of glass fiber wrapping tape, and both the first oxygen barrier layer (5) and the second oxygen barrier layer (8) are made of nanomaterials.

4. The novel explosion-proof power cable for coal mine safety video surveillance according to claim 1, characterized in that, The shielding layer (4) is made of copper mesh material, and the explosion-proof layer (6) is made of galvanized steel wire material.

5. The novel explosion-proof power cable for coal mine safety video surveillance according to claim 1, characterized in that, The pressure-resistant layer (9) is made of galvanized steel strip material, and the outer protective layer (10) is made of low-smoke halogen-free flame-retardant polyolefin material.

Images