CN217485130U - High temperature resistant protection type flame retarded cable - Google Patents

Abstract

The utility model discloses a high temperature resistant protection type flame retarded cable relates to high temperature resistant protection type flame retarded cable technical field, including the centerbody, the surface of centerbody is provided with the cable conductor, the surface of centerbody is provided with the tensile wire of glass fiber, the surface parcel of centerbody has the aluminium hydroxide layer, the surface of filling layer bonds and has the aluminium hydroxide layer, the surface of aluminium hydroxide layer bonds and has the fire-retardant layer of magnesium hydroxide, the surface of the fire-retardant layer of magnesium hydroxide bonds and has the hydrated boric acid layer, the surface of hydrated boric acid layer bonds and has halogen system fire retardant layer, the surface on polyvinyl chloride material layer is provided with cable protection sleeve. The utility model discloses a setting on aluminium hydroxide layer, the fire-retardant layer of magnesium hydrate, boric acid hydrate layer and the steamed fire retardant layer has reached the purpose of reinforcing fire behaviour, through the setting of expanded graphite piece, through the setting of cable protection sleeve provide more effective protection at the cable outside for the cable.

Description

High temperature resistant protection type flame retarded cable

Technical Field

The utility model relates to a high temperature resistant protection type flame retarded cable technical field specifically is a high temperature resistant protection type flame retarded cable.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

At present, the high-temperature-resistant protective flame-retardant cable in the prior art has poor flame-retardant performance, and when the cable is ignited and burned from the inside due to short circuit of a cable guide core or other high-temperature reasons, the spread of fire can not be well prevented, the high-temperature resistance is poor, and the service life of the cable is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high temperature resistant protection type flame retarded cable has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a high temperature resistant protection type flame retarded cable, includes the centerbody, the surface of centerbody is provided with the cable conductor, the surface of centerbody is provided with the anti stay wire of glass fiber, the surface parcel of centerbody has the aluminium hydroxide layer, the surface of filling layer bonds and has the aluminium hydroxide layer, the surface of aluminium hydroxide layer bonds and has the fire-retardant layer of magnesium hydroxide, the surface of the fire-retardant layer of magnesium hydroxide bonds and has the boric acid hydrate layer, the surface on boric acid hydrate layer bonds and has halogen flame retardant layer, the surface on halogen flame retardant layer bonds and has the polyvinyl chloride material layer, the surface on polyvinyl chloride material layer is provided with cable protection sleeve, cable protection sleeve's inside wall is provided with the expanded graphite piece.

Optionally, the cable conductors are uniformly distributed and spirally wound around the outer surface of the central body.

And selecting a plurality of glass fiber tensile wires which are uniformly distributed, wherein the glass fiber tensile wires are spirally wound on the outer surface of the central body.

And a filling layer is arranged among the central body, the cable conductor, the glass fiber tensile wire and the aluminum hydroxide layer, and the filling layer is made of insulating rubber mixed with ceramic fragments.

And a steel tape armor layer is arranged between the outer surface of the aluminum hydroxide layer and the inner side wall of the magnesium hydroxide flame-retardant layer, and the steel tape armor layer is spirally wound on the outer surface of the aluminum hydroxide layer.

The cable protection sleeve is manufactured by adopting Polyethylene (PE) and a high-quality steel pipe through processes of sand blasting and polishing, plastic dipping or coating, heating and curing.

(III) advantageous effects

The utility model provides a high temperature resistant protection type flame retarded cable possesses following beneficial effect:

1. this high temperature resistant protection type flame retarded cable, through the aluminium hydroxide layer, the fire-retardant layer of magnesium hydroxide, the setting on hydration boric acid layer and the halogen system flame retardant layer, make this high temperature resistant protection type flame retarded cable have possessed the effect of better fire behaviour, in the use, the aluminium hydroxide layer, the fire-retardant layer of magnesium hydroxide, hydration boric acid layer and halogen system flame retardant layer all can take place corresponding reaction when the high temperature, absorb a large amount of heat and produce water, thereby can reduce the temperature of high temperature zone section, and then reduce the possibility of taking place the burning, fire-retardant effect has been reached, the mesh of reinforcing fire behaviour has been reached.

2. This high temperature resistant protection type flame retarded cable, setting through the expanded graphite piece, make this high temperature resistant protection type flame retarded cable possess the effect of being convenient for judge the damage position, in the in-process of using, after certain section of cable produced high temperature, the expanded graphite piece meets the high temperature inflation, and then will wrap up in the cable protection cover pipe brace in the outside greatly, thereby can observe the position that takes place the high temperature through the naked eye fast, the maintenance personal of being convenient for maintains, through the setting of the anti-act wire of glass fiber, can absorb partial pulling force, the tensile strength of cable has been increased, the protective capacities of cable has been increased through setting up of steel band armor, prevent to receive and produce the damage when colliding with, the setting through cable protection sleeve provides more effective protection at the cable outside.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic structural view of a top view section of the present invention;

fig. 4 is a schematic structural diagram of a top view section of the cable protection sleeve of the present invention.

In the figure: 1. a central body; 2. a cable conductor; 3. a glass fiber tensile strand; 4. a filling layer; 5. an aluminum hydroxide layer; 6. a steel tape armor layer; 7. a magnesium hydroxide flame retardant layer; 8. a hydrated boric acid layer; 9. a halogen-based flame retardant layer; 10. a layer of polyvinyl chloride material; 11. a cable protection sleeve; 12. an expanded graphite block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a high-temperature-resistant protective flame-retardant cable comprises a central body 1, wherein a cable conductor 2 is arranged on the outer surface of the central body 1, the cable conductor 2 is provided with a plurality of uniformly distributed cables, the cable conductors 2 are spirally wound on the outer surface of the central body 1, a glass fiber tensile wire 3 is arranged on the outer surface of the central body 1, the glass fiber tensile wire 3 is provided with a plurality of uniformly distributed cables, the glass fiber tensile wire 3 is spirally wound on the outer surface of the central body 1, a filling layer 4 is arranged among the central body 1, the cable conductor 2, the glass fiber tensile wire 3 and an aluminum hydroxide layer 5, the filling layer 4 is made of insulating rubber mixed with ceramic fragments, the outer surface of the central body 1 is wrapped with the aluminum hydroxide layer 5, a steel strip armor layer 6 is arranged between the outer surface of the aluminum hydroxide layer 5 and the inner side wall of the magnesium hydroxide flame-retardant layer 7, and the steel strip armor layer 6 is spirally wound on the outer surface of the aluminum hydroxide layer 5, the outer surface of the filling layer 4 is bonded with an aluminum hydroxide layer 5, the outer surface of the aluminum hydroxide layer 5 is bonded with a magnesium hydroxide flame-retardant layer 7, the outer surface of the magnesium hydroxide flame-retardant layer 7 is bonded with a hydrated boric acid layer 8, the outer surface of the hydrated boric acid layer 8 is bonded with a halogen flame retardant layer 9, the outer surface of the halogen flame retardant layer 9 is bonded with a polyvinyl chloride material layer 10, the outer surface of the polyvinyl chloride material layer 10 is provided with a cable protective sleeve 11, the cable protective sleeve 11 is manufactured by adopting Polyethylene (PE) and a high-quality steel pipe through sand blasting polishing treatment, plastic dipping or coating and heating solidification processes, and the inner side wall of the cable protective sleeve 11 is provided with an expanded graphite block 12.

When the cable is used, the cable is connected between power equipment, when a circuit overload generates larger heat, the larger heat is often generated, even open fire is generated, at the moment, the glass fiber tensile wire 3 can isolate the open fire from the outside and wrap the cable conductor 2 inside to insulate the cable conductor from an external wrapping object, the aluminum hydroxide layer 5 reacts at high temperature, the aluminum hydroxide layer 5 has the advantages of good thermal stability, no harmful gas generated at high temperature or after being contacted with flame, capability of neutralizing acid gas released during pyrolysis of a polymer, less smoke, low price and the like, and releases chemically combined water by heating to absorb combustion heat and reduce combustion temperature, the steel tape armor layer 6 is arranged to wrap the cable conductor 2 and the central body 1 inside, effectively prevent the cable conductor 2 from being damaged by external collision, and has a protective effect on the cable conductor 2, the magnesium hydroxide flame-retardant layer 7 is arranged at a high temperature, and can absorb a large amount of heat energy to generate magnesium oxide and water through endothermic decomposition reaction, so that the temperature is reduced to achieve the flame-retardant effect, and the hydration boric acid layer 8 and the halogen flame retardant layer 9 are matched for use to have a good synergistic effect. Under the combustion condition, almost all flame-retardant elements can play a flame-retardant role through interaction between the flame-retardant elements and the cracking products thereof. The hydrated zinc borate reacts with a halogen flame retardant to generate zinc dihalide and boron trihalide, which can capture HO-and H-in a gas phase, form a vitreous isolating layer in a solid phase, insulate heat and oxygen, and generate water to dilute oxygen in a combustion area and take away reaction heat, thereby playing a large flame retardant role, the polyvinyl chloride material layer 10 is arranged to provide wrapping property in normal use, each layer of material in the cable is wrapped outside the cable, the cable protective sleeve 11 has good insulating property, high chemical stability, no rusting, no aging and harsh environment, when the cable shell is damaged by various factors in the external environment, the cable shell can be effectively protected, the expanded graphite block 12 is arranged on the inner side of the cable protective sleeve 11, and the volume can be instantly expanded to multiple due to high temperature, the surface area is enlarged, and the surface can be improved, Adsorb scale graphite reinforce, can gomphosis by oneself between the vermicular graphite, increased its compliance, resilience and plasticity like this, the cable protection sleeve 11 that surrounds the outside after the inflation props big, then can fix a position fast and take place dangerous position to and extrude each layer material in inside, reduce the space that can burn, strengthened fire extinguishing performance.

To sum up, the utility model discloses a setting of aluminium hydroxide layer 5, magnesium hydroxide fire-retardant layer 7, hydration boric acid layer 8 and halogen system fire retardant layer 9, make this high temperature resistant protection type flame retardant cable have better fire retardant performance's effect, in the in-process of using, aluminium hydroxide layer 5, magnesium hydroxide fire-retardant layer 7, hydration boric acid layer 8 and halogen system fire retardant layer 9 all can take place corresponding reaction when the high temperature, absorb a large amount of heat and produce water, thereby can reduce the temperature of high temperature zone section, and then reduce the possibility of taking place the burning, flame retardant effect has been reached, the purpose of reinforcing fire retardant performance has been reached, through the setting of expanded graphite piece 12, make this high temperature resistant protection type flame retardant cable have the effect of being convenient for judge the damage position, in the use, after certain section of cable produces high temperature, expanded graphite piece 12 meets high temperature inflation, and then the cable protection sleeve 11 who wraps up in the outside is propped up greatly, thereby can observe the position of taking place the high temperature through the naked eye fast, the maintenance personal of being convenient for maintains, through the setting of the tensile line 3 of glass fiber, can absorb partial pulling force, has increased the tensile strength of cable, has increased the protective capacities of cable through setting up of steel band armor 6, produces the damage when preventing to receive to collide with, through the setting of cable protective case 11 for the cable outside provides more effective protection.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A high temperature resistant protection type flame retarded cable, includes centriole (1) and filling layer (4), its characterized in that: the outer surface of the central body (1) is provided with a cable conductor (2), the outer surface of the central body (1) is provided with a glass fiber tensile wire (3), the outer surface of the central body (1) is wrapped with an aluminum hydroxide layer (5), the outer surface of the filling layer (4) is bonded with the aluminum hydroxide layer (5), the outer surface of the aluminum hydroxide layer (5) is bonded with a magnesium hydroxide flame-retardant layer (7), a hydrated boric acid layer (8) is bonded on the outer surface of the magnesium hydroxide flame-retardant layer (7), a halogen flame retardant layer (9) is bonded on the outer surface of the hydrated boric acid layer (8), a polyvinyl chloride material layer (10) is adhered to the outer surface of the halogen flame retardant layer (9), the outer surface of the polyvinyl chloride material layer (10) is provided with a cable protective sleeve (11), the inner side wall of the cable protective sleeve (11) is provided with an expanded graphite block (12).

2. The high temperature resistant protective flame retardant cable according to claim 1, characterized in that: the cable conductor (2) is provided with a plurality of strips which are evenly distributed, and the cable conductor (2) is spirally wound on the outer surface of the central body (1).

3. The high temperature resistant protective flame retardant cable according to claim 1, characterized in that: the glass fiber tensile wires (3) are uniformly distributed and spirally wound on the outer surface of the central body (1).

4. The high temperature resistant protective flame retardant cable according to claim 1, characterized in that: and a filling layer (4) is arranged among the central body (1), the cable conductor (2), the glass fiber tensile wire (3) and the aluminum hydroxide layer (5).

5. The high temperature resistant protective flame retardant cable according to claim 1, characterized in that: a steel tape armor layer (6) is arranged between the outer surface of the aluminum hydroxide layer (5) and the inner side wall of the magnesium hydroxide flame-retardant layer (7), and the steel tape armor layer (6) is spirally wound on the outer surface of the aluminum hydroxide layer (5).

Images