CN203134467U - A fireproof anti-interference data communication high-voltage oil-filled cable - Google Patents

Abstract

The utility model relates to the field of household communication electric power equipment and relates to an oil-filled cable. A fireproof anti-interference data communication high-voltage oil-filled cable comprises conductors, an optical fiber communication cable core, insulating layers, conductive shielding layers, an inner sheath, a shielding armored layer, and an outer sheath. An oil channel is disposed in the hollow conductor wrapped in the conductive shielding layer. The insulating layer is wrapped round the conductive shielding layer and is wrapped in an aluminum foil shielding layer to form a power cable core. The optical fiber communication cable core is arranged among four power cable cores arranged annularly and then the optical fiber communication cable core and the four power cable cores are twisted to form a cable. Then the cable is successively wrapped in the inner sheath, the shielding armored layer, and the outer sheath from inside to outside. Fillers are disposed in a gap between the power cable cores and the optical fiber communication cable core. The outer sheath is low-smoke halogen-free flame-retardant vulcanized nitrile rubber. The fireproof anti-interference data communication high-voltage oil-filled cable has characteristics of a strong fireproof capability, security and reliability, superimposed and offset electromagnetic field at the position of an optical fiber, excellent electrical performance, and high signal transmission frequency.

Description

Fireproof anti-jamming data communication high voltage oil-filled cable

technical field

The utility model relates to the field of household communication power equipment, in particular to an oil-filled cable.

Background technique

As people's demand for information in production and life becomes larger and wider, communication technology advances by leaps and bounds, presenting a prosperous scene of information technology in the ascendant. Under the demand of widely adopting information technology in various fields, communication products that are born on demand have sprung up one after another. However, in major equipment such as aerospace, ships, offshore platforms, oil exploration, power plants and other major equipment with large temperature difference between high and low temperatures, high flame retardancy requirements, and strict communication requirements, due to the small demand for communication products, strict quality requirements, and performance factors The requirements are constantly changing due to different occasions. So far, no professional industry standards and product series have been formed in terms of high-end communication products, especially communication cable products.

Existing offshore engineering, large-scale power equipment, oil production equipment or monitoring systems generally use mutually independent cable systems. This type of cable usually has problems such as high cable laying cost and high difficulty factor. In order to monitor the working status of the equipment, laying monitoring cables independently not only takes up expensive equipment space, but also easily damages the previous cables when laying cables repeatedly, although some The cable is a data/electricity integrated cable, but most of the existing cables have weak data transmission capability and unstable data transmission due to the interference of the power cable core to the data cable core.

Contents of the invention

The technical problem to be solved by the utility model is to provide a high-voltage oil-filled cable for fire-proof and anti-interference data communication. The cable uses low-smoke, halogen-free, flame-retardant and vulcanized nitrile rubber as the outer sheath. The generated electromagnetic field is offset at the location of the optical fiber communication cable core, which greatly reduces the interference to the optical fiber communication cable core and has excellent electrical performance.

The utility model is achieved in the following way: a high-voltage oil-filled cable for fire-proof and anti-interference data communication, including a conductor, an optical fiber communication cable core, an insulating layer, a conductive shielding layer, an inner sheath, a shielding armor layer and an outer sheath; The conductor is a hollow structure, with an oil passage inside the conductor, and a conductive shielding layer wrapped around the conductor. The insulating layer is wrapped around the conductive shielding layer, and the aluminum foil is wrapped around the insulating layer to form a power core wire; the four power core wires are ring-shaped Array and set an optical fiber communication cable core at the center and then twisted into a cable. After twisting into a cable, the inner sheath, shielding armor layer and outer sheath are wrapped in sequence from the inside to the outside. The power core wire and the optical fiber communication cable core Fillers are provided in the gaps between them, and the outer sheath is low-smoke, halogen-free, flame-retardant vulcanized nitrile rubber.

An oil hole communicated with the insulating layer is opened at intervals on the conductor.

The optical fiber communication cable core includes an optical fiber, an optical fiber paste filling, a loose tube, an aramid yarn and a sheath tube. After the optical fiber is twisted, it is covered with a loose tube, and the gap in the loose tube is filled with an optical fiber paste. Lun thread, and then extrude the sheath tube.

The filler is flame retardant polypropylene.

The inner sheath is flame retardant rubber.

The shielding armor layer is a braided layer of galvanized steel wire.

The conductive shielding layer is conductive paper.

The insulating layer is oil-soaked kraft paper.

The utility model fire-proof anti-interference data communication high-voltage oil-filled cable uses low-smoke, halogen-free, flame-retardant vulcanized nitrile rubber as the outer sheath, has strong fire resistance, is safe and reliable, and the optical fiber communication cable core is arranged in the center of the circular array of four power cable cores. position, where the electromagnetic fields generated by the four power cable cores are superimposed and offset, which greatly reduces the interference to the optical fiber communication cable core, has excellent electrical performance, and has high frequency of signal transmission; this cable is strengthened by rounding the filler Tensile strength and pressure resistance grade, with good repeated bending strength, so that the wire has high reliability.

Description of drawings

Fig. 1 is a cross-sectional schematic diagram of a fireproof anti-jamming data communication high-voltage oil-filled cable of the present invention;

Fig. 2 is a schematic cross-sectional view of the optical fiber data cable core in the present invention.

In the figure: 1 conductor, 2 optical fiber communication cable core, 3 insulating layer, 4 conductive shielding layer, 5 filler, 6 inner sheath, 7 shielding armor layer, 8 outer sheath, 9 aluminum foil, 10 oil channel, 21 optical fiber , 22 optical fiber paste, 23 loose tube, 24 aramid yarn, 25 sheath tube.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Example 1

As shown in Figure 1, a high-voltage oil-filled cable for fire-proof and anti-interference data communication includes a conductor 1, an optical fiber communication cable core 2, an insulating layer 3, a conductive shielding layer 4, an inner sheath 6, a shielding armor layer 7 and an outer sheath Cover 8, in this embodiment, the conductive shielding layer 4 is conductive paper; the conductor 1 is a hollow structure, the conductor 1 is provided with an oil channel 10, the conductor 1 is wrapped around the conductive shielding layer 4, and the insulation The layer 3 is wrapped around the conductive shielding layer 4, and the insulating layer 3 is wrapped around the aluminum foil 9 to form a power core wire; four power core wires are arranged in a circular array and an optical fiber communication cable core 2 is set at the center, and then twisted into a cable. After the synthetic cable is wrapped around the inner sheath 6, the shielding armor layer 7 and the outer sheath 8 in sequence from the inside to the outside, the gap between the power core wire and the optical fiber communication cable core 2 is provided with a filler 5, and the outer sheath Set 8 is low-smoke, halogen-free, flame-retardant vulcanized nitrile rubber.

The utility model can be further described as, the insulating layer 3 is oil-impregnated kraft paper, in order to ensure the insulating ability of the oil-impregnated kraft paper, an oil hole communicating with the insulating layer 3 is provided on the conductor 1 at intervals, and the use of The high-pressure oil in the oil passage 10 makes the insulating layer 3 fully infiltrate to fill the gaps and improve the insulation strength.

In this embodiment, the filling core 5 between the core wires is flame-retardant polypropylene, and when twisted into a cable, a layer of flame-retardant rubber is wrapped around it as the inner sheath 6, and the inner sheath 6 mainly acts as a support for the inner pair of twisted core wires. The thickness of the inner sheath 6 is about 0.15mm. When there is an external force, it can play the role of force recoil. The inner sheath 6 is shielded by the shielding armor layer 7 braided by galvanized steel wire. The density is more than 85%, reducing the interference of external signals.

As shown in Figure 2, the utility model can be further described as, the optical fiber data cable core includes optical fiber 21, optical fiber paste filling 22, loose tube 23, aramid yarn 24 and sheath tube 25, and the outer sheath 25 It is a high-density polyethylene tube, and the optical fiber 21 is stranded and outsourced with a loose tube 23, the gap in the loose tube 23 is filled with optical fiber paste 22, the loose tube 23 is outsourced with aramid fiber 24, and then extruded into a high-density polyethylene sheath Tube 25.

Claims (8)

1. the anti-interference data communication high-tension oilfilled cable of fire prevention is characterized in that: comprise conductor (1), optical-fibre communications cable core (2), insulating barrier (3), conductive shielding layer (4), inner sheath (6), shield layer (7) and oversheath (8); Described conductor (1) is hollow structure, is provided with oil duct (10) in the conductor (1), the outer wrapped conductive shielding layer (4) of conductor (1), and described insulating barrier (3) is wrapped outside conductive shielding layer (4), and the outer wrapped aluminium foil (9) of insulating barrier (3) shields into the electric power heart yearn; Four electric power heart yearn annular arrays also arrange the stranded stranding in an optical-fibre communications cable core (2) back in the center, from inside to outside wrapped inner sheath (6), shield layer (7) and oversheath (8) in turn behind the stranded stranding, gap between electric power heart yearn and the optical-fibre communications cable core (2) is provided with filler (5), and described oversheath (8) is the low-smoke non-halogen flame-retardant sulfurized nitrile rubber.

2. the anti-interference data communication high-tension oilfilled cable of fire prevention as claimed in claim 1 is characterized in that: offers an oilhole that communicates with insulating barrier (3) every a segment distance on the described conductor (1).

3. the anti-interference data communication high-tension oilfilled cable of fire prevention as claimed in claim 1, it is characterized in that: described optical-fibre communications cable core (2) comprises optical fiber (21), the filling of optical fiber cream (22), loose sleeve pipe (23), aramid yarn (24) and protecting pipe (25), the stranded back of optical fiber (21) outsourcing pine sleeve pipe (23), space in the pine sleeve pipe (23) is filled by optical fiber cream (22), pine sleeve pipe (23) outsourcing aramid line (24) extrudes protecting pipe (25) again.

4. as the anti-interference data communication high-tension oilfilled cable of the described fire prevention of any claim in the claim 1～3, it is characterized in that: described filler (5) is polypropylene flame redardant.

5. as the anti-interference data communication high-tension oilfilled cable of the described fire prevention of any claim in the claim 1～3, it is characterized in that: described inner sheath (6) is flame retardant rubber.

6. as the anti-interference data communication high-tension oilfilled cable of the described fire prevention of any claim in the claim 1～3, it is characterized in that: described shield layer (7) is the zinc-coated wire braid.

7. as the anti-interference data communication high-tension oilfilled cable of the described fire prevention of any claim in the claim 1～3, it is characterized in that: described conductive shielding layer (4) is conductive paper.

8. as the anti-interference data communication high-tension oilfilled cable of the described fire prevention of any claim in the claim 1～3, it is characterized in that: described insulating barrier (3) is immersion oil brown paper.

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