CN216212385U

CN216212385U - Low-smoke halogen-free corrosion-resistant direct-buried cable

Info

Publication number: CN216212385U
Application number: CN202122266493.1U
Authority: CN
Inventors: 李志强; 张宾宾; 刘美帅; 李畅
Original assignee: Henan Qingzhou Cable Co ltd
Current assignee: Henan Qingzhou Cable Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-04-05
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a low-smoke halogen-free corrosion-resistant directly-buried cable which sequentially comprises an insulating wire core, a first water-blocking wrapping layer, a shielding wrapping layer, an antioxidant weaving layer, a moisture-proof filling layer, a second water-blocking wrapping layer, a water-blocking ointment adhesive layer, a polyester tape wrapping layer, a galvanized steel tape armor layer, an anticorrosion reinforcing layer and an outer sheath from inside to outside; the dampproofing filling layer comprises the yarn and the aramid fiber silk that expand to block water, and insulating sinle silk is two, and it has flexible fire prevention mud to block water at two insulating sinle silks and first gap department of blocking water between the covering inner wall. The utility model has the performances of corrosion resistance, wear resistance, moisture resistance, flame retardance and the like required by the particularity of the environment where the buried cable is located, and can prevent the cable from being damaged by being bitten by animals such as insects, ants and the like by arranging the zinc steel wire armor layer, thereby improving the hardness of the cable, playing a role in protection, meeting the requirements of ecological and environmental protection and prolonging the service life of the cable.

Description

Low-smoke halogen-free corrosion-resistant direct-buried cable

The technical field is as follows:

the utility model relates to a direct-buried cable, in particular to a low-smoke halogen-free corrosion-resistant direct-buried cable.

Background art:

along with the rapid development of the cable material industry, the market demand is greatly increased, the specialized production is stronger and stronger, the variety of the cable material tends to be diversified, the cable is buried in the agricultural land, meanwhile, the green environment-friendly material becomes the mainstream of the cable material, the market of the halogen-free low-smoke flame-retardant cable material is developed at a high speed, the special cable material is gradually increased, the requirement on the agricultural buried cable is higher and higher, and particularly, when the cable is directly buried and laid, the requirements on ecology and environmental protection are required to be met.

The utility model has the following contents:

the technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, the low-smoke halogen-free corrosion-resistant direct-buried cable is provided, and the cable has good performances of corrosion resistance, wear resistance, moisture resistance, water resistance and the like, and meets the requirements of ecology and environment.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a low-smoke halogen-free corrosion-resistant buried cable comprises an insulating wire core, a first water-blocking wrapping layer, a shielding wrapping layer, an antioxidant weaving layer, a moisture-proof filling layer, a second water-blocking wrapping layer, a water-blocking factice adhesive layer, a polyester tape wrapping layer, a galvanized steel tape armor layer, an anticorrosion reinforcing layer and an outer sheath in sequence from inside to outside; the dampproofing filling layer comprises yarn and aramid fiber silk that blocks water by the inflation, insulating sinle silk is two, and every insulating sinle silk includes conductor, conductor insulation layer and corrosion resistant layer by interior outside in proper order, and just blocks water at two insulating sinle silks and first and pack flexible fire prevention mud around the gap department between the covering inner wall.

The conductor is processed by high-purity electrolytic oxygen-free copper type 2 stranded copper soft wires, the conductor insulating layer is formed by extruding crosslinked polyethylene, and the corrosion-resistant layer is processed by high-flame-retardant, oil-resistant and wear-resistant polyvinyl chloride rubber-plastic elastomer plastics.

The first water-blocking wrapping layer and the second water-blocking wrapping layer are formed by wrapping double-sided water-blocking tapes, the shielding wrapping layer is formed by wrapping aluminum-plastic composite tapes, and the anti-oxidation weaving layer is formed by weaving tinned round copper wires.

The anticorrosion reinforcing layer is made of flame-retardant high-density polyethylene high polymer materials, and the outer sheath is made of irradiation cross-linking type low-smoke halogen-free special cable materials.

The aramid fiber yarns are uniformly distributed on the outer wall of the anti-oxidation weaving layer and are wound and tightened through the expansion water-blocking yarns.

The utility model keeps the insulating property of the original cable, has the performances of corrosion resistance, wear resistance, moisture resistance, flame retardance and the like, can prevent the cable from being damaged by being bitten by animals such as insects, ants and the like by arranging the galvanized steel wire armor layer, improves the hardness of the cable, plays a role in protection, meets the requirements of ecological and environmental protection, and prolongs the service life of the cable.

Compared with the common cable, the key technology of the utility model is innovated in the following points:

firstly, a conductor: the high-purity electrolytic oxygen-free copper category 2 stranded copper soft wire is processed, and has the advantages of softness, large carrying current and the like.

② conductor insulation layer: the cable is formed by extruding crosslinked polyethylene, and the cable plays a role in radial water resistance after encountering fire, provides a good barrier for excellent insulation performance, and plays a role in color separation.

③ corrosion resistant layer: the high-flame-retardant, oil-resistant and wear-resistant polyvinyl chloride rubber-plastic elastomer plastic is processed, and has the characteristics of wear resistance, water resistance, tensile resistance, oil stain resistance and the like while maintaining the original insulating property.

Fourthly, the first water-blocking wrapping layer and the second water-blocking wrapping layer are: the waterproof tape is formed by wrapping a double-sided waterproof tape, when the waterproof tape meets water, the high-water-absorption material contained in the waterproof tape can be rapidly expanded to form a large-volume jelly which is filled in a water seepage channel of the cable, so that the water is prevented from continuously permeating and diffusing, and the aim of preventing water is fulfilled.

Fifth, shielding the lapping layer: the aluminum-plastic composite belt is adopted for wrapping, so that the conductor can be tightened to be not loose, the interference of an external electromagnetic field can be shielded, and the stability of power transmission is ensured.

Sixth, the anti-oxidation braid layer: is woven by tin-plated round copper wires and has oxidation resistance and corrosion resistance.

And a corrosion-resistant reinforcing layer: the material is processed by adopting a flame-retardant high-density polyethylene high polymer material, has good pressure resistance, water resistance, hardness, tensile strength and creep property, and simultaneously has better wear resistance, electrical insulation property, toughness and cold resistance.

Eighthly, outer sheath: the cable material is processed by adopting the irradiation crosslinking type low-smoke halogen-free special cable material, has excellent thermal aging resistance and oil resistance, does not release hydrogen halide or other acids during combustion, and meets the requirement of environmental protection.

Ninthly, the aramid fiber has the anti-aging effect, and meanwhile, the insulation property is very strong, so that the service life of the cable is prolonged.

R, expansion water-blocking yarn: the cable can expand rapidly when meeting water, so that water is prevented from entering the cable, and a damp-proof effect is achieved.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

The specific implementation mode is as follows:

the utility model will be further explained and explained with reference to the drawings and the specific embodiments:

example (b): referring to fig. 1, the low-smoke halogen-free corrosion-resistant buried cable sequentially comprises an insulating wire core, a first water-blocking wrapping layer 4, a shielding wrapping layer 5, an antioxidant weaving layer 6, a moisture-proof filling layer, a second water-blocking wrapping layer 9, a water-blocking ointment adhesive layer 10, a polyester tape wrapping layer 11, a galvanized steel tape armor layer 12, an anticorrosion reinforcing layer 13 and an outer sheath 14 from inside to outside; the dampproofing filling layer comprises inflation yarn 7 and aramid fiber silk 8 that blocks water, and insulating sinle silk is two, and every insulating sinle silk includes conductor 1, conductor insulation 2 and corrosion resistant layer 3 by interior outside in proper order, and has flexible fire prevention mud at two insulating sinle silks and the first gap department of blocking water between 4 inner walls of package.

The conductor 1 is processed by high-purity electrolytic oxygen-free copper type 2 stranded copper soft wires, the conductor insulation 2 is extruded by crosslinked polyethylene, and the corrosion-resistant layer 3 is processed by high-flame-retardant, oil-resistant and wear-resistant polyvinyl chloride rubber-plastic elastomer plastics.

The first winding layer 4 and the second winding layer 9 that blocks water all adopt two-sided water-blocking tape to wind and form, and shielding winding layer 5 adopts aluminium-plastic composite tape to wind and forms, and anti-oxidant weaving layer 6 adopts tin-plated round copper wire to weave and forms.

The anti-corrosion reinforcing layer 13 is made of flame-retardant high-density polyethylene high polymer material, and the outer sheath 14 is made of irradiation cross-linking type low-smoke halogen-free special cable material.

The aramid fiber yarns 8 are uniformly distributed on the outer wall of the anti-oxidation weaving layer 6 and are wound and tightened through the expansion water-blocking yarns 7.

In the above description, the fireproof mud plays a role in filling, has flame retardant and corrosion resistant properties, and is wound and fastened with the two insulated cables through the first water-blocking wrapping layer; the water-blocking ointment is arranged between the second water-blocking wrapping layer and the polyester tape wrapping layer, so that the effects of moisture prevention, buffering and adhesion are achieved, the cable is tightened layer by layer, and the overall stability is improved.

The utility model has the performances of corrosion resistance, wear resistance, moisture resistance, flame retardance and the like required by the particularity of the environment where the buried cable is located, and can prevent the cable from being damaged by being bitten by animals such as insects, ants and the like by arranging the zinc steel wire armor layer, thereby improving the hardness of the cable, playing a role in protection, meeting the requirements of ecological and environmental protection and prolonging the service life of the cable.

Claims

1. The utility model provides a corrosion-resistant buried cable of low smoke and zero halogen which characterized in that: the low-smoke halogen-free corrosion-resistant direct-buried cable sequentially comprises an insulating wire core, a first water-blocking wrapping layer (4), a shielding wrapping layer (5), an antioxidant weaving layer (6), a moisture-proof filling layer, a second water-blocking wrapping layer (9), a water-blocking ointment adhesive layer (10), a polyester tape wrapping layer (11), a galvanized steel tape armor layer (12), an anticorrosion reinforcing layer (13) and an outer sheath (14) from inside to outside; the dampproofing filling layer blocks water yarn (7) and aramid fiber silk (8) by the inflation and constitutes, insulating sinle silk is two, and every insulating sinle silk includes conductor (1), conductor insulation layer (2) and corrosion resistant layer (3) outside by interior in proper order, and blocks water at two insulating sinle silks and first and locate to fill flexible fire prevention mud around the gap between covering (4) inner wall.

2. The low-smoke halogen-free corrosion-resistant buried cable according to claim 1, characterized in that: the conductor (1) is processed by high-purity electrolytic oxygen-free copper type 2 stranded copper soft wires, the conductor insulating layer (2) is extruded by cross-linked polyethylene, and the corrosion-resistant layer (3) is processed by high-flame-retardant, oil-resistant and wear-resistant polyvinyl chloride rubber-plastic elastomer plastics.

3. The low-smoke halogen-free corrosion-resistant buried cable according to claim 1, characterized in that: the first water-blocking winding layer (4) and the second water-blocking winding layer (9) are formed by winding double-sided water-blocking tapes, the shielding winding layer (5) is formed by winding aluminum-plastic composite tapes, and the anti-oxidation weaving layer (6) is formed by weaving tinned round copper wires.

4. The low-smoke halogen-free corrosion-resistant buried cable according to claim 1, characterized in that: the anti-corrosion reinforcing layer (13) is made of flame-retardant high-density polyethylene high polymer materials, and the outer sheath (14) is made of irradiation cross-linking type low-smoke halogen-free special cable materials.

5. The low-smoke halogen-free corrosion-resistant buried cable according to claim 1, characterized in that: the aramid fiber yarns (8) are uniformly distributed on the outer wall of the anti-oxidation weaving layer (6) and are wound and tightened through the expansion water-blocking yarns (7).