Fireproof cable for building

Abstract

The utility model provides a fireproof cable for buildings, which belongs to the technical field of buildings and comprises a lining layer and a fireproof mechanism arranged outside the lining layer, the fireproof mechanism comprises a fireproof sleeve uniformly arranged on the outer cambered surface of the lining layer, dry powder is filled in a cavity arranged in the middle of the fireproof sleeve, and a fireproof assembly is further arranged in the lining layer; the fireproof mechanism further comprises a mica layer arranged on the outer arc face of the fireproof sleeve. The fireproof mechanism further comprises a glass fiber tape layer arranged on the outer cambered surface of the mica layer. According to the utility model, through cooperation of the fireproof mechanism and the fireproof assembly, release can be realized when the sheath layer is damaged, combustion chain reaction can be interrupted through a chemical inhibition effect, a heat insulation covering layer is formed, oxygen can be effectively isolated, and a certain active fire extinguishing effect can be realized; double guarantee of continuous power supply capability and personnel safety of the cable under the fire hazard condition is realized, and reliability and safety of the cable under the extreme environment are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and in particular relates to a fireproof cable for construction. Background Art

[0002] Fire-resistant cables for buildings are cables specially designed to improve the safety of electrical systems in buildings, especially to maintain the integrity of circuits in the event of a fire, prevent the spread of fire, and ensure the operation of critical power systems;

[0003] The current fire-resistant cables for construction generally adopt a standard strategy, which is to integrate a fire-resistant layer into the structure. Magnesium oxide is usually used as the core material, and a variety of fire-resistant materials are used in combination to enhance the flame retardant performance. However, this configuration is essentially still at the passive defense level, so its protective performance has certain limitations. Utility Model Content

[0004] In view of this, the utility model provides a fireproof cable for construction, which can cooperate with fireproof mechanisms and fireproof components. The built-in dry powder can be released when the sheath is damaged, interrupting the combustion chain reaction through chemical inhibition, and forming a heat-insulating covering layer to effectively isolate oxygen, which can achieve a certain active fire extinguishing effect. The design of the entire fireproof cable uses a multi-layer protective structure combined with the characteristics of different materials to ensure the reliability and safety of the cable in extreme environments.

[0005] In order to solve the above technical problems, the utility model provides a fireproof cable for construction, including an inner lining layer and a fireproof mechanism arranged outside the inner lining layer, the fireproof mechanism includes a fireproof sleeve evenly arranged on the outer arc surface of the inner lining layer, the cavity arranged in the middle of the fireproof sleeve is filled with dry powder, the fireproof sleeve provides fixed support for the dry powder, and a fireproof component is also provided in the inner lining layer.

[0006] The fireproof mechanism also includes a mica layer arranged on the outer arc surface of the fireproof sleeve, and the fireproof sleeve provides support for the mica layer.

[0007] The fireproof mechanism also includes a glass fiber belt layer arranged on the outer arc surface of the mica layer, and the mica layer provides fixed support for the glass fiber belt layer.

[0008] The fireproof component includes a flame-retardant wrapping tape layer arranged on the inner arc surface of the inner lining layer, a uniformly distributed polyethylene insulation layer is arranged in the flame-retardant wrapping tape layer, and the gaps formed between the multiple polyethylene insulation layers and the flame-retardant wrapping tape layer are filled with a mineral mud fireproof layer, which provides fixed support for the polyethylene insulation layer, and a fire-resistant tape layer is arranged in the polyethylene insulation layer, which provides fixed support for the fire-resistant tape layer, and conductors are arranged in the fire-resistant tape layer.

[0009] The outer arc surface of the glass fiber belt layer is provided with a sheath to protect its internal structure, and the sheath is a low-smoke halogen-free flame-retardant sheath.

[0010] A carbon fiber composite core is provided in the middle of the mineral mud fireproof layer.

[0011] The beneficial effects of the above technical solution of the utility model are as follows:

[0012] 1. The mica layer enhances the fire resistance of the cable because mica has excellent thermal stability and electrical insulation, is not easy to decompose at high temperatures, and can effectively prevent the spread of flames. The glass fiber tape layer increases the mechanical strength and fire resistance, and has good heat resistance and flame retardancy. The fireproof sleeve is evenly wrapped on the outside of the inner lining layer. The built-in dry powder can be released when the sleeve is damaged, interrupting the combustion chain reaction through chemical inhibition, and forming a heat-insulating covering layer to effectively isolate oxygen and achieve a certain active fire extinguishing effect.

[0013] 2. The flame retardant wrapping tape layer is tightly wrapped on the inner side of the inner lining layer to enhance the fireproof effect. The polyethylene insulation layer provides insulation protection for the conductor. The mineral mud fireproof layer fills the gap between the polyethylene insulation layer and the flame retardant wrapping tape layer to improve the fireproof ability. The fire-resistant tape layer surrounds the conductor to provide additional fire protection to ensure the normal operation of the conductor under fire conditions. The sheath is covered on the outermost layer and is made of low-smoke halogen-free flame retardant material to reduce the toxic smoke generated during fire and enhance the stability and fireproof performance of the overall structure. The design of the entire fireproof cable uses a multi-layer protective structure combined with the characteristics of different materials to achieve dual guarantees of the cable's continuous power supply capacity and personnel safety under fire conditions, ensuring the reliability and safety of the cable in extreme environments.

[0014] 3. The carbon fiber composite core is placed in the center of the mineral mud fireproof layer, which improves the mechanical strength and tensile properties of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model fireproof cable for construction;

[0016] Figure 2 This is a schematic diagram of the fire protection structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the fireproof sleeve and dry powder structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0019] Explanation of the reference numerals: 100, inner lining layer; 200, fireproof sleeve; 201, dry powder; 202, mica layer; 203, glass fiber tape layer; 300, flame retardant wrapping tape layer; 301, mineral mud fireproof layer; 302, polyethylene insulation layer; 303, fire-resistant tape layer; 304, conductor; 400, sheath; 500, carbon fiber composite core. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] like Figure 1-4 As shown:

[0022] The present embodiment provides a fireproof cable for construction, comprising an inner lining layer 100 and a fireproof mechanism arranged outside the inner lining layer 100, wherein the fireproof mechanism comprises a fireproof sleeve 200 uniformly arranged on the outer arc surface of the inner lining layer 100, a cavity arranged in the middle of the fireproof sleeve 200 is filled with dry powder 201, the fireproof sleeve 200 provides fixed support for the dry powder 201, and a fireproof component is also arranged in the inner lining layer 100; the fireproof mechanism also comprises a mica layer 202 arranged on the outer arc surface of the fireproof sleeve 200, the fireproof sleeve 200 provides support for the mica layer 202; the fireproof mechanism also comprises a glass fiber tape layer 203 arranged on the outer arc surface of the mica layer 202, and the mica layer 20 2 provides fixed support for the glass fiber tape layer 203; the fireproof component includes a flame retardant wrapping tape layer 300 arranged on the inner arc surface of the inner lining layer 100, and a uniformly distributed polyethylene insulation layer 302 is arranged in the flame retardant wrapping tape layer 300, and a mineral mud fireproof layer 301 is filled in the gap formed between the multiple polyethylene insulation layers 302 and the flame retardant wrapping tape layer 300, and the mineral mud fireproof layer 301 provides fixed support for the polyethylene insulation layer 302, and a fire-resistant tape layer 303 is arranged in the polyethylene insulation layer 302, and the polyethylene insulation layer 302 provides fixed support for the fire-resistant tape layer 303, and the fire-resistant tape layer 303 is provided with a conductor 304

[0023] like Figure 1-4 As shown, the outer arc surface of the glass fiber tape layer 203 is provided with a sheath 400, which plays a protective role for the internal structure thereof, and the sheath 400 is a low-smoke halogen-free flame-retardant sheath.

[0024] The working principle of the fireproof cable for construction provided by the utility model is as follows: the inner lining layer 100 serves as the base layer of the cable, and is used to carry the internal conductor and other components. The mica layer 202 enhances the fireproof performance of the cable, because mica has excellent thermal stability and electrical insulation, is not easy to decompose at high temperatures, and can effectively prevent the spread of flames. The glass fiber tape layer 203 increases the mechanical strength and fireproof performance, and has good heat resistance and flame retardancy. The fireproof sleeve 200 is evenly wrapped on the outside of the inner lining layer 100, and the built-in dry powder 201 can be released when the sleeve is damaged, interrupting the combustion chain reaction through chemical inhibition, and forming a heat-insulating covering layer, which effectively isolates oxygen and can achieve a certain active fire extinguishing effect. The flame-retardant wrapping tape layer 300 is tightly wrapped on the inner lining layer 10 0 inside to enhance the fireproof effect, the polyethylene insulation layer 302 provides insulation protection for the conductor 304, the mineral mud fireproof layer 301 fills the gap between the polyethylene insulation layer 302 and the flame retardant wrapping tape layer 300 to improve the fireproof ability, the fire-resistant tape layer 303 surrounds the conductor 304 to provide additional fire protection to ensure the normal operation of the conductor under fire conditions, the sheath 400 covers the outermost layer and is made of low-smoke halogen-free flame retardant material to reduce the toxic smoke generated during fire and enhance the stability and fireproof performance of the overall structure. The design of the entire fireproof cable uses a multi-layer protective structure combined with the characteristics of different materials to achieve dual guarantees of the cable's continuous power supply capability and personnel safety under fire conditions, ensuring the reliability and safety of the cable in extreme environments.

[0025] like Figure 1-2 As shown, a carbon fiber composite core 500 is provided in the middle of the mineral mud fireproof layer 301 . The carbon fiber composite core 500 is placed at the center of the mineral mud fireproof layer 301 , thereby improving the mechanical strength and tensile strength of the cable.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. Fireproof cable for construction, characterized by: The invention comprises an inner lining layer (100) and a fire protection mechanism arranged outside the inner lining layer (100), wherein the fire protection mechanism comprises a fire protection sleeve (200) evenly arranged on the outer arc surface of the inner lining layer (100), a cavity arranged in the middle of the fire protection sleeve (200) is filled with dry powder (201), and a fire protection component is also arranged in the inner lining layer (100).

2. The fireproof cable for construction as claimed in claim 1, characterized in that: The fireproof mechanism also includes a mica layer (202) arranged on the outer arc surface of the fireproof sleeve (200).

3. The fireproof cable for construction as claimed in claim 2, characterized in that: The fire protection mechanism also includes a glass fiber tape layer (203) arranged on the outer curved surface of the mica layer (202).

4. The fireproof cable for construction as claimed in claim 1, characterized in that: The fireproof component comprises a flame retardant wrapping tape layer (300) arranged on the inner arc surface of the inner lining layer (100), a uniformly distributed polyethylene insulation layer (302) is arranged in the flame retardant wrapping tape layer (300), a mineral mud fireproof layer (301) is filled in the gaps formed between the plurality of polyethylene insulation layers (302) and the flame retardant wrapping tape layer (300), a fire-resistant tape layer (303) is arranged in each of the polyethylene insulation layers (302), and a conductor (304) is arranged in each of the fire-resistant tape layers (303).

5. The fireproof cable for construction as claimed in claim 3, characterized in that: The outer arc surface of the glass fiber belt layer (203) is provided with a sheath (400).

6. The fireproof cable for construction as claimed in claim 4, characterized in that: A carbon fiber composite core (500) is provided in the middle of the mineral mud fireproof layer (301).

7. The fireproof cable for construction as claimed in claim 5, characterized in that: The sheath (400) is a low-smoke, halogen-free, flame-retardant sheath.

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