Low-fluorine-content electric power insulation fireproof cable

Abstract

The invention discloses a low-fluorine-content power insulation fireproof cable, and relates to the technical field of fireproof cables, and the technical scheme is that the low-fluorine-content power insulation fireproof cable comprises a plurality of cable copper wires, the plurality of cable copper wires are sleeved with an insulation layer, the insulation layer is sleeved with an isolation layer, the plurality of cable copper wires are sleeved with a buffer layer, and the buffer layer is fixedly sleeved with a flame-retardant layer. The outer side of the flame-retardant layer is fixedly sleeved with a fireproof layer and a positioning mechanism, the positioning mechanism is arranged on the outer sides of the multiple isolation layers, and the positioning mechanism is used for positioning multiple cable copper wires. The cable has the beneficial effects that the fireproof efficiency of the cable is greatly improved, and meanwhile, the device adopts multiple layers of fireproof materials, so that fire cannot spread quickly, and the service life of the cable is prolonged. The fire-fighting time is greatly prolonged, the use safety of the cable is greatly improved, in addition, the device adopts the design of the flame retardant, so that the fire is subjected to flame retardance and fire extinguishment before the fire is in contact with the copper sheet of the cable, and the fire extinguishment efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof cables, and in particular to a low-fluorine content electric insulation fireproof cable. Background Art

[0002] Fireproof cable materials refer to cable materials with fireproof properties, usually including fireproof insulation materials, fireproof sheath materials, fireproof filling materials, etc. However, the existing fireproof cables only have the function of fireproof isolation, but not fire extinguishing. Therefore, the fire will only be weakened but cannot be extinguished or isolated. Summary of the invention

[0003] To this end, the present invention provides a low-fluorine content electric insulated fireproof cable. When the cable catches fire, the fireproof mechanism eliminates and controls the fire. At the same time, the positioning mechanism in the cable positions multiple cable copper wires, making the cable as a whole more stable, so as to solve the problem that the existing fireproof cable only has the function of fireproof isolation but not fire extinguishing, so the fire can only be weakened but cannot be extinguished or isolated.

[0004] In order to achieve the above object, the present invention provides the following technical solution: a low-fluorine content power insulated fireproof cable, comprising a plurality of cable copper wires, the outer sides of the plurality of cable copper wires are sheathed with an insulating layer, and the outer sides of the insulating layer are sheathed with an isolation layer;

[0005] A plurality of the cable copper wire jackets are provided with a buffer layer, and a fixed sleeve outside the buffer layer is provided with a flame retardant layer;

[0006] The outer fixed sleeve of the flame retardant layer is provided with a fireproof layer;

[0007] A positioning mechanism, which is arranged outside the plurality of insulating layers and is used for positioning the plurality of cable copper wires;

[0008] A fire prevention mechanism is arranged outside the copper wire of the cable and is used for extinguishing fire.

[0009] Preferably, the insulating layer is made of polyvinyl chloride material, and the polyvinyl chloride material is used to insulate the copper wire of the cable to isolate the circuit.

[0010] Preferably, the insulating layer is made of fire-retardant coating, and the insulating layer is used to isolate the fire.

[0011] Preferably, the buffer layer is made of natural rubber material, and the buffer layer performs buffering and shock-absorbing work on the overall structure.

[0012] Preferably, the flame retardant layer is made of cross-linked polyethylene material, and the flame retardant layer is used for further fire prevention.

[0013] Preferably, the fireproof layer is made of glass fiber cloth material, and the fireproof layer is used to perform the first step of fire prevention work.

[0014] Preferably, the positioning mechanism comprises a positioning frame, the positioning frame is fixedly embedded in the buffer layer, the positioning frame is fixedly sleeved on the outside of multiple insulation layers, and reinforcing ribs are provided between the multiple positioning frames.

[0015] Preferably, the fireproof mechanism comprises a plurality of fireproof boxes, the plurality of fireproof boxes are all made of ceramic silicone rubber material, and both sides of the plurality of fireproof boxes are provided with combustible blocking cloths.

[0016] Preferably, a plurality of connection boxes are fixedly connected to the outside of the fireproof layer, the plurality of connection boxes are respectively connected to a plurality of fireproof boxes, and a flame retardant is embedded inside the plurality of connection boxes, and the flame retardant is a mixture of aluminum hydroxide and magnesium hydroxide.

[0017] Preferably, a plurality of the connection boxes are each embedded with an extrusion plate, and a spring is fixedly connected to the outer side of each of the plurality of the extrusion plates, and the spring is fixedly connected to the inner wall of the connection box.

[0018] The beneficial effects of the present invention are:

[0019] When the cable catches fire, the fire prevention mechanism eliminates and controls the fire, and at the same time, the positioning mechanism in the cable positions multiple cable copper wires, making the cable more stable as a whole, so as to solve the problem that the existing fireproof cable only has the function of fireproof isolation, but not fire extinguishing, so the fire can only be weakened but cannot be extinguished and isolated. The present invention greatly improves the fire prevention efficiency of the cable. At the same time, the device adopts multi-layer fireproof materials, so that the fire will not spread quickly, which greatly prolongs the time of fire fighting and greatly improves the safety of cable use.

[0020] In addition, the device adopts a flame retardant design, so that the fire is extinguished before it contacts the cable copper sheet, greatly improving the efficiency of fire extinguishing. In addition, the structural design of the positioning frame and buffer layer in the device makes the overall stability of the cable higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0023] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0024] Figure 2 A partial front view and cutaway three-dimensional structure schematic diagram provided by the present invention;

[0025] Figure 3 A schematic diagram of the three-dimensional structure of the cable copper wire and the positioning frame provided by the present invention;

[0026] Figure 4 The present invention provides Figure 3 A in the enlarged view;

[0027] Figure 5 The present invention provides Figure 3 The enlarged view of point B in the figure;

[0028] Figure 6 The present invention provides Figure 3 The enlarged view of point C in the figure;

[0029] Figure 7 The present invention provides Figure 4 The enlarged view of point D in the figure;

[0030] In the figure: 1 cable copper wire; 2 insulation layer; 3 isolation layer; 4 buffer layer; 5 flame retardant layer; 6 fireproof layer; 7 positioning frame; 8 fireproof box; 9 combustible baffle cloth; 10 connection box; 11 flame retardant; 12 extrusion plate; 13 spring; 14 reinforcing ribs. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] See attached Figure 1 -Attached Figure 7 The present invention provides a low-fluorine content electric insulation fireproof cable, comprising a plurality of cable copper wires 1, an insulating layer 2 is sheathed outside the plurality of cable copper wires 1, and an insulating layer 3 is sheathed outside the insulating layer 2;

[0033] A plurality of cable copper wires 1 are provided with a buffer layer 4 on their outer jackets, and a flame retardant layer 5 is provided on the outer fixed jacket of the buffer layer 4;

[0034] The outer fixed sleeve of the flame retardant layer 5 is provided with a fireproof layer 6;

[0035] A positioning mechanism, which is arranged outside the plurality of insulating layers 3 and is used for positioning the plurality of cable copper wires 1;

[0036] Fire prevention mechanism, which is arranged outside the cable copper wire 1 and is used to extinguish fire;

[0037] In this embodiment, when the cable catches fire, the fire prevention mechanism eliminates and controls the fire, and at the same time, the positioning mechanism in the cable positions the multiple cable copper wires 1, making the cable as a whole more stable;

[0038] Among them, in order to achieve the purpose of fire barrier, the device adopts the following technical solutions: the insulating layer 2 is made of polyvinyl chloride material, and the polyvinyl chloride material is used to insulate the cable copper wire 1 to isolate the circuit. PVC has good insulation, which can effectively prevent current leakage, ensure the safe use of cables in high voltage or complex environments, and has strong resistance to chemical substances such as acids, alkalis, salts, and oils. It is suitable for corrosive environments such as chemicals and industries. Polyvinyl chloride can also achieve flame retardant effects by adding flame retardants to reduce fire risks. It is suitable for places with high safety requirements such as buildings and subways. The insulating layer 3 is made of fire retardant coating. The insulating layer 3 is used to isolate the fire. The flame retardant layer 5 is made of cross-linked polyethylene material. The heat resistance temperature of XLPE can reach 90°C and can withstand 105- 250℃, much higher than 70℃ of ordinary polyethylene, suitable for high temperature environment or overload conditions. The cross-linked structure is not easy to melt at high temperature, avoiding softening and deformation of the insulation layer. At the same time, it resists erosion by oil, acid, alkali and other chemical substances, and prolongs the service life. In addition, the insulation layer of the cross-linked polyethylene material is tight and has low water permeability, which is suitable for humid or underground laying. The flame retardant layer 5 is used for further fire prevention work. The fireproof layer 6 is made of glass fiber cloth material. The glass fiber can withstand temperatures from -60℃ to +500℃ for a long time. Some special coating models can reach higher temperatures, far exceeding ordinary PVC or rubber cables, which usually have a temperature limit of 70℃ to 105℃. At the same time, the glass fiber cloth is non-combustible and will not release toxic gases when encountering fire. It is suitable for high-temperature workshops, metallurgy, boilers and other scenes. The fireproof layer 6 is used for the first step of fire prevention work;

[0039] When the cable catches fire or is ignited, the flame burns the fireproof layer 6, and the fireproof layer 6 made of glass fiber cloth material performs the first step of fireproofing the flame. At the same time, the fireproof layer 6 made of glass fiber cloth material is also relatively wear-resistant, protecting the cable. When the fireproof layer 6 is burned through, the flame retardant layer 5 further performs fireproofing on the flame. The flame retardant layer 5 made of cross-linked polyethylene material retards the flame to prevent the fire from further expanding. When the flame retardant layer 5 is burned through, the flame enters the cable. At this time, the insulating layer 3 on the outside of the multiple cable copper wires 1 isolates the flame entering the cable again, which has a great fire protection effect on the cable copper wires 1.

[0040] Among them, in order to achieve the purpose of structural positioning, the device adopts the following technical solutions: the buffer layer 4 is made of natural rubber material, the buffer layer 4 performs buffering and shock absorption work on the overall structure, the positioning mechanism includes a positioning frame 7, the positioning frame 7 is fixedly embedded in the buffer layer 4, the positioning frame 7 is fixedly sleeved on the outside of multiple insulation layers 3, and reinforcing ribs 14 are provided between multiple positioning frames 7;

[0041] Multiple positioning frames 7 are used to position multiple cable copper wires 1 to prevent the cables from getting tangled inside when being moved and pulled, thereby affecting the fire prevention effect. The design of the buffer layer 4 and the reinforcing ribs 14 makes the cables more flexible and prevents the cables from being folded.

[0042] Among them, in order to achieve the purpose of fire extinguishing, the present device is implemented by the following technical solutions: the fire prevention mechanism includes multiple fireproof boxes 8, and the multiple fireproof boxes 8 are made of ceramic silicone rubber material. Both sides of the multiple fireproof boxes 8 are provided with combustible blocking cloths 9. The outer side of the fireproof layer 6 is fixedly connected with multiple connecting boxes 10, and the multiple connecting boxes 10 are respectively connected with the multiple fireproof boxes 8. The flame retardant 11 is embedded in the multiple connecting boxes 10, and the flame retardant 11 is a mixed material of aluminum hydroxide and magnesium hydroxide. Extrusion plates 12 are embedded in the multiple connecting boxes 10, and springs 13 are fixedly connected to the outer sides of the multiple extrusion plates 12. The springs 13 are fixedly connected to the inner wall of the connecting box 10;

[0043] When the flame contacts the combustible baffles 9 on both sides of the multiple connection boxes 10, the multiple combustible baffles 9 are burned, causing the flame retardant 11 inside the multiple connection boxes 10 and the fireproof box 8 to flow out, and the multiple extrusion plates 12 and the springs 13 squeeze the flame retardant 11 so that the flame retardant 11 is not subject to resistance, so that the flame retardant 11 is quickly ejected to extinguish the surrounding flames. Aluminum hydroxide (Al(OH)3) and magnesium hydroxide (Mg(OH)2) are common inorganic flame retardants. In fire extinguishing, they mainly suppress combustion by endothermic decomposition and release of inert gas (water vapor). When the two are used in combination, the fire extinguishing effect may show a synergistic effect. After mixing, it can cover a wider temperature range and is suitable for multi-stage flame retardancy. The water vapor produced by decomposition dilutes the oxygen concentration and suppresses the combustion chain reaction. Aluminum hydroxide is suitable for medium and low temperature fires, and magnesium hydroxide is suitable for high temperature fires. After mixing, they can cope with more complex fire environments.

[0044] The use process of the present invention is as follows: when the cable catches fire, the fire prevention mechanism eliminates and controls the fire, and at the same time, the positioning mechanism in the cable positions multiple cable copper wires 1, making the cable as a whole more stable. When the cable catches fire or is ignited, the flame burns the fire prevention layer 6, and the fire prevention layer 6 of the glass fiber cloth material performs the first step of fire prevention on the flame. At the same time, the fire prevention layer 6 of the glass fiber cloth material is also relatively wear-resistant, and protects the cable. When the fire prevention layer 6 is burned through, the flame retardant layer 5 further performs fire prevention on the flame, and the flame retardant layer 5 made of cross-linked polyethylene material retards the flame to prevent the fire from further expanding. When the flame retardant layer 5 is burned through, the flame enters the interior of the cable. At this time, the insulating layer 3 on the outside of the multiple cable copper wires 1 isolates the flame entering the cable again, which greatly provides fire protection for the cable copper wires 1. Effect, multiple positioning frames 7 position multiple cable copper wires 1 to prevent the cables from getting entangled internally when moving and pulling, thereby affecting the fire prevention effect, the design of the buffer layer 4 makes the cable more flexible and prevents the cable from being folded, when the flame contacts the combustible baffles 9 on both sides of the multiple connection boxes 10, the multiple combustible baffles 9 are burned, causing the flame retardant 11 inside the multiple connection boxes 10 and the fireproof box 8 to flow out, multiple extrusion plates 12 and springs 13 squeeze the flame retardant 11 so that the flame retardant 11 is not subject to resistance, thereby allowing the flame retardant 11 to be quickly ejected to extinguish the surrounding flames, aluminum hydroxide (Al(OH)3) and magnesium hydroxide (Mg(OH)2) are common inorganic flame retardants, and they mainly suppress combustion by absorbing heat and decomposing and releasing inert gas (water vapor) during fire extinguishing. When the two are used together, the fire extinguishing effect may show a synergistic effect. After mixing, they can cover a wider temperature range and are suitable for multi-stage flame retardancy. The water vapor produced by decomposition dilutes the oxygen concentration and inhibits the combustion chain reaction. Aluminum hydroxide is suitable for medium and low temperature fires, and magnesium hydroxide is suitable for high temperature fires. After mixing, they can cope with more complex fire environments.

[0045] The above is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A low-fluorine content power insulation fireproof cable, characterized in that: include A plurality of cable copper wires (1), wherein the outer sides of the plurality of cable copper wires (1) are provided with an insulating layer (2), and the outer sides of the insulating layer (2) are provided with an isolation layer (3); A plurality of the cable copper wires (1) are provided with a buffer layer (4) on their outer jackets, and a flame retardant layer (5) is provided on the outer fixed jacket of the buffer layer (4); The outer fixed sleeve of the flame retardant layer (5) is provided with a fireproof layer (6); A positioning mechanism, the positioning mechanism being arranged outside the plurality of insulating layers (3), and the positioning mechanism being used for positioning the plurality of cable copper wires (1); A fire prevention mechanism is provided on the outside of the cable copper wire (1) and is used for extinguishing fire.

2. A low-fluorine content power insulation fireproof cable according to claim 1, characterized in that: The insulating layer (2) is made of polyvinyl chloride material, and the polyvinyl chloride material is used to insulate the cable copper wire (1) to isolate the circuit.

3. The low-fluorine content power insulation fireproof cable according to claim 1, characterized in that: The insulating layer (3) is made of fireproof paint, and the insulating layer (3) is used to isolate fire.

4. The low-fluorine content power insulation fireproof cable according to claim 1, characterized in that: The buffer layer (4) is made of natural rubber material, and the buffer layer (4) performs buffering and shock-absorbing work on the overall structure.

5. The low fluorine content electric insulation fireproof cable according to claim 1, characterized in that: The flame retardant layer (5) is made of a cross-linked polyethylene material, and the flame retardant layer (5) is used for further fire prevention.

6. The low-fluorine content electric insulation fireproof cable according to claim 1, characterized in that: The fireproof layer (6) is made of glass fiber cloth material, and the fireproof layer (6) is used to perform the first step of fire prevention work.

7. The low-fluorine content electric insulation fireproof cable according to claim 2, characterized in that: The positioning mechanism comprises a positioning frame (7), the positioning frame (7) is fixedly embedded in the buffer layer (4), the positioning frame (7) is fixedly sleeved on the outside of a plurality of insulating layers (3), and reinforcing ribs (14) are provided between the plurality of positioning frames (7).

8. The low-fluorine content power insulated fireproof cable according to claim 4, characterized in that: The fire prevention mechanism comprises a plurality of fire prevention boxes (8), the plurality of fire prevention boxes (8) are all made of ceramic silicone rubber material, and both sides of the plurality of fire prevention boxes (8) are provided with combustible blocking cloths (9).

9. The low-fluorine content electric insulation fireproof cable according to claim 1, characterized in that: A plurality of connection boxes (10) are fixedly connected to the outside of the fireproof layer (6), the plurality of connection boxes (10) are respectively connected to the plurality of fireproof boxes (8), and a flame retardant (11) is embedded inside the plurality of connection boxes (10), and the flame retardant (11) is a mixed material of aluminum hydroxide and magnesium hydroxide.

10. The low fluorine content electric insulation fireproof cable according to claim 1, characterized in that: A plurality of the connection boxes (10) are each embedded with an extrusion plate (12), and a spring (13) is fixedly connected to the outside of each of the plurality of the extrusion plates (12), and the spring (13) is fixedly connected to the inner wall of the connection box (10).

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