Super-flexible mineral fireproof cable

Abstract

The utility model discloses a super-flexible mineral fireproof cable, which comprises an inner insulating layer arranged on the side surface of a conductor, an inner protective layer arranged on the side surface of the inner insulating layer, a filling layer arranged on the side surface of the inner protective layer, an armor layer arranged on the side surface of the filling layer, and an anti-oxidation layer arranged on the side surface of the armor layer, the side surface of the anti-oxidation layer is provided with an outer insulation layer, the side surface of the outer insulation layer is provided with a moisture-proof layer, the side surface of the moisture-proof layer is provided with an anti-ultraviolet layer, and the side surface of the anti-ultraviolet layer is provided with a wear-resistant layer, through the above devices, the overall performance of the cable is improved, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a super-flexible mineral fireproof cable. Background Art

[0002] Fire-resistant cable refers to a cable that can maintain safe operation for a certain period of time under flame conditions. It is widely used in high-rise buildings, subways, underground streets, large power stations and important industrial and mining enterprises and other places related to fire safety and firefighting. At present, the flexibility of flexible fire-resistant cables is poor, the construction and installation requirements are large, and the construction cost is high. This is mainly because the cable outer diameter is large and the metal sheath is hard, which makes the cable flexibility unable to meet actual needs. For example, a Chinese patent discloses "an ultra-flexible mineral fire-resistant cable", and its application number is: "201922261834.9", and its gap filling layer is Mineral filling, the center is filled with carbon fiber composite material, which has good fire-resistant insulation performance. The waterproof and fire-proof wrapping layer is not directly wrapped outside the filling layer, but the oxygen insulation layer is directly extruded, which is equivalent to adding a secondary fire protection effect to the cable and has an isolation effect, and the waterproof and fire-proof wrapping layer is equivalent to adding a tertiary fire protection effect to the cable, which has good fire resistance. The setting of the low-smoke halogen-free polyolefin outer sheath has a good protective effect on the cable structure and has good fire resistance. However, the cable does not have good protection requirements under different environmental conditions (light, humidity, etc.), and there is a problem of affecting its service life. Utility Model Content

[0003] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide an ultra-flexible mineral fire-resistant cable. By setting a multi-layer protective layer, including an inner insulation layer, an inner protective layer, a filling layer, an armor layer, an anti-oxidation layer, an outer insulation layer, a moisture-proof layer, an anti-ultraviolet layer and a wear-resistant layer, the multi-layer setting provides comprehensive electrical, mechanical and environmental protection, can reduce damage to the cable caused by external factors, is beneficial to improving the overall performance of the cable and extending its service life.

[0004] The utility model also provides the above-mentioned super-flexible mineral fire-resistant cable, comprising: a conductor, the side surface of the conductor is provided with an inner insulating layer, the side surface of the inner insulating layer is provided with an inner protective layer, the side surface of the inner protective layer is provided with a filling layer, the side surface of the filling layer is provided with an armor layer, the side surface of the armor layer is provided with an anti-oxidation layer, the side surface of the anti-oxidation layer is provided with an outer insulating layer, the side surface of the outer insulating layer is provided with a moisture-proof layer, the side surface of the moisture-proof layer is provided with an anti-ultraviolet layer, and the side surface of the anti-ultraviolet layer is provided with a wear-resistant layer. The above devices are beneficial to improving the overall performance of the cable and extending its service life.

[0005] According to the ultra-flexible mineral fireproof cable described in the utility model, the inner insulating layer is composed of ceramic mica tape, and the inner protective layer is composed of metal tape. The above device is beneficial to provide protection for single-strand conductors.

[0006] According to the ultra-flexible mineral fire-resistant cable described in the utility model, the filling layer is composed of mineral compounds, and the conductor, inner insulation layer, and inner protective layer are all located inside the filling layer. The above device is beneficial to ensuring the structural stability of the multi-strand conductor.

[0007] According to the ultra-flexible mineral fireproof cable described in the utility model, the armor layer is made of metal, and the anti-oxidation layer is composed of silicate compounds. The above devices are beneficial to providing protection and anti-oxidation properties of the cable.

[0008] According to the ultra-flexible mineral fireproof cable described in the utility model, the outer insulation layer is composed of ethylene propylene rubber (EPR), and the moisture-proof layer is composed of polyvinyl chloride (PVC). The above devices are beneficial to providing insulation protection and moisture-proof performance of the cable.

[0009] According to the ultra-flexible mineral fire-resistant cable described in the utility model, the anti-ultraviolet layer is composed of chlorinated polyethylene (CPE), and the wear-resistant layer is composed of nylon material. The above devices are beneficial to improving the anti-ultraviolet and wear-resistant properties of the cable.

[0010] Beneficial effects

[0011] 1. Compared with the existing technology, this ultra-flexible mineral fire-resistant cable has multiple layers of protection, including an inner insulation layer, an inner protective layer, a filling layer, an armor layer, an anti-oxidation layer, an outer insulation layer, a moisture-proof layer, an anti-ultraviolet layer and a wear-resistant layer. The multi-layer setting provides comprehensive electrical, mechanical and environmental protection, which can reduce damage to the cable caused by external factors, is beneficial to improving the overall performance of the cable and extending its service life.

[0012] 2. Compared with the existing technology, this ultra-flexible mineral fire-resistant cable can protect the single-strand conductor through the inner insulation layer and the inner protective layer, and the anti-oxidation layer, outer insulation layer, moisture-proof layer, anti-ultraviolet layer and wear-resistant layer further enhance the cable's resistance to the external environment, providing strong mechanical protection for the cable, ensuring that the cable can maintain stable electrical performance in various complex environments, which is beneficial to improving the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a three-dimensional structural diagram of the utility model's super-flexible mineral fire-resistant cable;

[0015] Figure 2 This is a cross-sectional structural diagram of the utility model's ultra-flexible mineral fire-resistant cable;

[0016] Figure 3 This utility model is a super flexible mineral fireproof cable Figure 2 Enlarged view of point B in the middle;

[0017] Figure 4 This is a bottom-up structural diagram of the ultra-flexible mineral fire-resistant cable of the utility model.

[0018] Legend:

[0019] 1. Conductor; 2. Inner insulation layer; 3. Inner protective layer; 4. Filling layer; 5. Armor layer; 6. Anti-oxidation layer; 7. Outer insulation layer; 8. Moisture-proof layer; 9. Anti-ultraviolet layer; 10. Wear-resistant layer. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1-4 , an embodiment of the utility model is an ultra-flexible mineral fire-resistant cable, which includes: a conductor 1, which is the core part of the cable and is responsible for transmitting current; an inner insulating layer 2 is provided on the side surface of the conductor 1, and the inner insulating layer 2 is composed of ceramic mica tape, which is used to provide electrical insulation and prevent current from leaking between the conductor and the external environment or adjacent conductors; an inner protective layer 3 is provided on the side surface of the inner insulating layer 2, and the inner protective layer 3 is composed of a metal tape, which is used to enhance the mechanical strength of the cable and protect the inner insulating layer from external mechanical damage; a filling layer 4 is provided on the side surface of the inner protective layer 3, and the filling layer 4 is composed of a mineral compound, which is used to fill the gaps between the cable core wires to make the cable structure more compact and stable; the conductor 1, the inner insulating layer 2, and the inner protective layer 3 are all located inside the filling layer 4.

[0022] The side surface of the filling layer 4 is provided with an armor layer 5, which is made of metal and is used to provide additional mechanical protection and pressure resistance to prevent the cable from being damaged by external forces during laying and use. The side surface of the armor layer 5 is provided with an anti-oxidation layer 6, which is composed of silicate compounds and is used to prevent the cable from undergoing oxidation reactions in harsh environments, thereby extending the service life of the cable. The side surface of the anti-oxidation layer 6 is provided with an outer insulating layer 7, which is composed of ethylene propylene rubber (EPR) and is used to provide additional electrical insulation and protect the internal structure from the influence of the external environment. The side surface of the outer insulating layer 7 is provided with a moisture-proof layer 8, which is composed of polyvinyl chloride (PVC) and is used to prevent the cable from getting damp, keep the inside of the cable dry, and ensure stable electrical performance. The side surface of the moisture-proof layer 8 is provided with an anti-ultraviolet layer 9, which is composed of chlorinated polyethylene (CPE) and is used to prevent the cable from aging due to long-term exposure to ultraviolet rays and maintain the appearance and performance of the cable. The side surface of the anti-ultraviolet layer 9 is provided with a wear-resistant layer 10, which is composed of nylon material and is used to improve the wear resistance of the cable and prevent damage due to friction during laying and use.

[0023] Working principle: When current passes through the conductor 1, the inner insulation layer 2 provides electrical insulation to prevent current leakage. The inner protective layer 3 and the armor layer 5 provide mechanical protection and compressive resistance to ensure that the cable can maintain structural integrity in harsh environments. The filling layer 4 fills the gaps to improve the roundness and stability of the cable. The antioxidant layer 6 prevents the cable from oxidation. The outer insulation layer 7 provides additional electrical insulation and weather resistance. The moisture-proof layer 8, anti-ultraviolet layer 9 and wear-resistant layer 10 protect the cable from damage by moisture, ultraviolet rays and friction respectively. The combined effect of these layers makes the cable have many excellent properties such as super flexibility, fire resistance, wear resistance, moisture resistance, UV resistance and oxidation resistance, which reduces damage caused by environmental factors and enhances the service life of the cable.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An ultra-flexible mineral fire-resistant cable, characterized in that: include: A conductor (1), wherein the side surface of the conductor (1) is provided with an inner insulating layer (2), the side surface of the inner insulating layer (2) is provided with an inner protective layer (3), the side surface of the inner protective layer (3) is provided with a filling layer (4), the side surface of the filling layer (4) is provided with an armor layer (5), the side surface of the armor layer (5) is provided with an anti-oxidation layer (6), the side surface of the anti-oxidation layer (6) is provided with an outer insulating layer (7), the side surface of the outer insulating layer (7) is provided with a moisture-proof layer (8), the side surface of the moisture-proof layer (8) is provided with an anti-ultraviolet layer (9), and the side surface of the anti-ultraviolet layer (9) is provided with a wear-resistant layer (10).

2. The ultra-flexible mineral fire-resistant cable according to claim 1, characterized in that: The inner insulating layer (2) is composed of a ceramic mica tape, and the inner protective layer (3) is composed of a metal tape.

3. The ultra-flexible mineral fire-resistant cable according to claim 1, characterized in that: The filling layer (4) is composed of a mineral compound, and the conductor (1), the inner insulating layer (2), and the inner protective layer (3) are all located inside the filling layer (4).

4. The ultra-flexible mineral fire-resistant cable according to claim 1, characterized in that: The armor layer (5) is made of metal, and the anti-oxidation layer (6) is made of silicate compounds.

5. The ultra-flexible mineral fire-resistant cable according to claim 1, characterized in that: The outer insulating layer (7) is made of ethylene propylene rubber (EPR), and the moisture-proof layer (8) is made of polyvinyl chloride (PVC).

6. The ultra-flexible mineral fire-resistant cable according to claim 1, characterized in that: The anti-ultraviolet layer (9) is made of chlorinated polyethylene (CPE), and the wear-resistant layer (10) is made of nylon material.

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