CN216697918U - Novel high-temperature-resistant cable - Google Patents

Abstract

The utility model discloses a novel high-temperature-resistant cable, and belongs to the field of cables. A novel high temperature resistant cable, comprising: the inner conductor, the filling rope and the shielding layer; the filling rope is arranged inside the cable; the inner conductors are uniformly distributed on the outer circumference of the filling rope; the inner conductor is wrapped with an insulating layer; the inner conductors are all arranged inside the shielding layer; a second wrapping layer is arranged on the outer side of the shielding layer, and a first wrapping layer is arranged on one side, close to the inner conductor, of the shielding layer; a tinned wire drainage wire is arranged between the wrapping layer II and the shielding layer; compared with the prior art, the novel high-temperature-resistant cable is simple in structure, has smaller insulating dielectric loss and good shielding performance, has excellent thermal aging characteristics, and also has the characteristics of good high-temperature resistance, good insulating performance, good flame retardant performance, good corrosion resistance and the like. When in use, the temperature can be manually reduced by adopting a ventilation mode.

Description

Novel high-temperature-resistant cable

Technical Field

The utility model relates to the field of cables, in particular to a novel high-temperature-resistant cable.

Background

With the rapid development of science and technology and economy, the high temperature resistance of cables in most industries is higher and higher, and particularly, the cables used in some industries such as energy sources and power plants have more lines working at high temperature for a long time, so that the high temperature resistance of the most cables is higher. In the past, due to the characteristic that wires and cables cannot resist high temperature, the fire accident happens in a long time, so that great loss is caused to the country, and great harm is brought to the life safety of workers; in the construction of large-scale projects such as modern power plants, chemical engineering and the like, a large number of cables are needed; therefore, a novel high-temperature-resistant cable is provided.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a novel high-temperature-resistant cable.

The purpose of the utility model can be realized by the following technical scheme:

a novel high temperature resistant cable comprising: the inner conductor, the filling rope and the shielding layer;

the filling rope is arranged inside the cable; the inner conductors are uniformly distributed on the outer circumference of the filling rope; the inner conductor is wrapped with an insulating layer; the inner conductors are all arranged inside the shielding layer; a second wrapping layer is arranged on the outer side of the shielding layer, and a first wrapping layer is arranged on one side, close to the inner conductor, of the shielding layer; a tinned wire drainage wire is arranged between the wrapping layer II and the shielding layer; an inner protective layer is arranged on the outer side of the second wrapping layer; an armor layer is arranged on the outer side of the inner protection layer; and a rubber protective sleeve is arranged on the outer side of the armor layer.

Further, an inner sleeve is sleeved outside the filling rope; the inner sleeve is provided with a partition plate between two adjacent inner conductors; the partition plate is uniformly provided with air holes I; the inner sleeve is provided with a second air hole; the first air hole is communicated with the second air hole; both ends of the cable are sleeved with circular rings; the inner side of the circular ring is provided with a clamping block; the clamping block is provided with a clamping groove; the baffles are all arranged in one clamping groove; the inner conductor is arranged between two adjacent clamping blocks; the circular ring is fixedly provided with a pipeline; an annular groove is formed in one side, close to the inner conductor, of the annular ring; the pipeline is communicated with the annular groove.

Furthermore, the inner conductor is stranded with the same core by adopting a tinned soft copper wire.

Further, the insulating layer adopts tetrafluoroethylene.

Furthermore, the first wrapping layer and the second wrapping layer both adopt glass fibers; the shielding layer is made of copper strips.

Further, the inner sheath layer is tetrafluoroethylene-ethylene copolymer.

Further, the armor layer is a steel belt armor layer.

The utility model has the beneficial effects that:

the novel high-temperature-resistant cable is simple in structure, has small insulating dielectric loss, good shielding performance and excellent thermal aging characteristic, and also has the characteristics of good high-temperature resistance, good insulating performance, good flame retardant performance, good corrosion resistance and the like. When in use, the temperature can be manually reduced by adopting a ventilation mode.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of the interior of a cable of the present application;

FIG. 2 is a schematic cross-sectional view of a thermally conductive sleeve with an attached cable according to the present application;

fig. 3 is a schematic view of a ring of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A novel high temperature resistant cable, comprising: an inner conductor 1, a filling rope 4 and a shielding layer 5;

a filling rope 4 is arranged inside the cable; inner conductors 1 are uniformly distributed on the outer circumference of the filling rope 4; the inner conductor 1 is wrapped with an insulating layer 2; the inner conductors 1 are all arranged inside the shielding layer 5; the inner conductor 1 and the filling rope 4 jointly form a cable core, the cable core has high roundness, and the filling rope 4 can also assist in improving the tensile resistance and the swing resistance of the cable;

a second wrapping layer 7 is arranged on the outer side of the shielding layer 5, and a first wrapping layer 3 is arranged on one side, close to the inner conductor 1, of the shielding layer 5; a tinned wire drainage wire 6 is arranged between the second wrapping layer 7 and the shielding layer 5; the first wrapping layer 3 can not only play a role of wrapping and preventing the cable core inside from loosening, but also can buffer and transition the inside; the second wrapping layer 7 plays a role in external protection; the double-layer wrapping layer can avoid the fracture of the shielding layer 5 and the cable core, and meanwhile, the double-layer wrapping layer can play an internal flame-retardant effect; an inner protective layer 8 is arranged on the outer side of the second wrapping layer 7, and the inner protective layer 8 enables the pressure resistance of the cable to be stronger; an armor layer 9 is arranged on the outer side of the inner protection layer 8; a rubber protective sleeve 10 is arranged on the outer side of the armor layer 9; the rubber protective sleeve 10 can be made of high-strength, tear-resistant and high-pressure-resistant silicone rubber, has a strong fire-resistant and flame-retardant effect, is high in environmental protection performance, and can still maintain good dielectric strength at a combustion temperature.

Further, an inner sleeve 11 is sleeved outside the filling rope 4; the inner sleeve 11 is provided with a partition plate 12 between two adjacent inner conductors 1; the partition plate 12 is uniformly provided with air holes I17; the inner sleeve 11 is provided with a second air hole 18; the first air hole 17 is communicated with the second air hole 18; both ends of the cable are sleeved with circular rings 16; the inner side of the circular ring 16 is provided with a clamping block 15; the clamping block 15 is provided with a clamping groove; the clapboards 12 are all arranged in a clamping groove; the inner conductor 1 is arranged between two adjacent clamping blocks 15; the circular ring 16 is fixedly provided with a pipeline 13; one side of the circular ring 16 close to the inner conductor 1 is provided with a circular groove 14; the pipe 13 is communicated with the annular groove 14; when the cable is used, if the cable is known to generate a large amount of heat in advance, in order to prolong the service life, the pipelines 13 on the two sides can be opened, and the pipeline 13 on one side is connected with the air pump; the air pump outputs air, the air enters the pipeline 13, the annular groove 14, the first air hole 17 and the second air hole 18 and is finally discharged from the pipeline 13 on the other side, and the air takes away heat generated by use, so that the phenomenon that the internal temperature is too high, and the cable is aged or even burnt out is avoided.

Furthermore, the inner conductor 1 is formed by stranding tinned soft copper wires together, and has small outer diameter, good conductivity and smooth and round surface.

Furthermore, the insulating layer 2 is made of tetrafluoroethylene, so that the insulating layer has good environmental protection performance and excellent high-temperature resistance.

Furthermore, the first wrapping layer 3 and the second wrapping layer 7 both adopt glass fibers; the shielding layer 5 is a copper strip; the cable core is not loose in structure, and has 500 ℃ high temperature resistance and flame retardant property by adopting copper strip wrapping shielding and double-layer glass fiber material wrapping.

Furthermore, the inner sheath layer 8 is tetrafluoroethylene-ethylene copolymer, so that the cable has certain protection capability, smooth and round surface and good high-temperature flame retardant property.

Furthermore, the armor layer 9 is a steel tape armor layer, has good corrosion prevention effect and high environmental protection performance, and can still maintain good dielectric strength at the combustion temperature.

The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (7)

1. A novel high temperature resistant cable, comprising: the cable comprises an inner conductor (1), a filling rope (4) and a shielding layer (5);

the filling rope (4) is arranged inside the cable; the inner conductors (1) are uniformly distributed on the outer circumference of the filling rope (4); the inner conductor (1) is wrapped with an insulating layer (2); the inner conductors (1) are all arranged inside the shielding layer (5); a second wrapping layer (7) is arranged on the outer side of the shielding layer (5), and a first wrapping layer (3) is arranged on one side, close to the inner conductor (1), of the shielding layer (5); a tinned wire drainage wire (6) is arranged between the second wrapping layer (7) and the shielding layer (5); an inner protective layer (8) is arranged on the outer side of the second wrapping layer (7); an armor layer (9) is arranged on the outer side of the inner protection layer (8); and a rubber protective sleeve (10) is arranged on the outer side of the armor layer (9).

2. The novel high-temperature-resistant cable as claimed in claim 1, wherein an inner sleeve (11) is sleeved outside the filling rope (4); the inner sleeve (11) is provided with a partition plate (12) between two adjacent inner conductors (1); the partition plate (12) is uniformly provided with air holes I (17); the inner sleeve (11) is provided with a second air hole (18); the first air hole (17) is communicated with the second air hole (18); both ends of the cable are sleeved with circular rings (16); a clamping block (15) is arranged on the inner side of the circular ring (16); the clamping block (15) is provided with a clamping groove; the clapboards (12) are all arranged in one clamping groove; the inner conductor (1) is arranged between two adjacent clamping blocks (15); the circular ring (16) is fixedly provided with a pipeline (13); an annular groove (14) is formed in one side, close to the inner conductor (1), of the annular ring (16); the conduit (13) communicates with the annular groove (14).

3. The new high temperature resistant cable according to claim 1, characterized in that the inner conductor (1) is stranded with tinned soft copper wire.

4. The novel high-temperature-resistant cable according to claim 1, wherein the insulating layer (2) is made of tetrafluoroethylene.

5. The novel high-temperature-resistant cable as claimed in claim 1, wherein glass fibers are adopted for both the first wrapping layer (3) and the second wrapping layer (7); the shielding layer (5) is made of copper strips.

6. The new high temperature cable according to claim 1, characterized in that the inner sheath (8) is a tetrafluoroethylene-ethylene copolymer.

7. The new high temperature resistant cable according to claim 1, characterized in that the armor layer (9) is a steel tape armor layer.

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