CN211979273U

CN211979273U - High-strength anti-corrosion optical cable

Info

Publication number: CN211979273U
Application number: CN202020289355.8U
Authority: CN
Inventors: 孙祖国; 耿纪鲜
Original assignee: Yangzhou Gaotong Photoelectric Technology Co ltd
Current assignee: Yangzhou Gaotong Photoelectric Technology Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-11-20
Anticipated expiration: 2030-03-10

Abstract

The utility model relates to an optical cable technical field especially relates to a high strength anticorrosion optical cable, including anticorrosive sheath, armor, inner sheath, shielding layer, band layer, water blocking layer, loose tube, optic fibre, reinforced core, filling rope and fine cream, anticorrosive sheath cup joints on the surface of armor, the armor cup joints on the surface of inner sheath, the inner sheath cup joints on the surface of shielding layer, the shielding layer cup joints on the surface of band layer, the band layer cup joints on the surface of water blocking layer, fine cream is filled in the inside at the water blocking layer, the loose tube is located the inside of water blocking layer. The utility model discloses reached the purpose that improves the anticorrosion and the mechanical strength performance of optical cable self, made the resistance to compression and the tensile strength performance of optical cable obtain promoting, consequently can satisfy in the demand in complicated soil property region to the armor can prevent stinging of mouse, thereby cracked phenomenon can not appear in the protection optical cable, has consequently improved the security performance of optical cable.

Description

High-strength anti-corrosion optical cable

Technical Field

The utility model relates to an optical cable technical field especially relates to an anticorrosive optical cable of high strength.

Background

The geological conditions and the natural environment of the west of China are much worse than those of the east, particularly in the northwest and the southwest, the terrain of a passing region is complex, a fracture layer exists, the air temperature is ultralow, perennial frozen soil exists, and the requirements on the optical cable are quite severe. If a common pipeline optical cable is used, an air blowing mode is required during construction, the construction process is complex, the cost is high, and stress action in alternative seasons of frozen soil layer freezing or unfreezing cannot be borne; if use aerial optical cable, meet the frozen soil layer region, because the annual freezing, melt for the pole upwards emits gradually, and the pole root can emerge ground when serious, and consequently, the direct-burried optical cable will be the optical cable that western region is the most suitable for laying.

The fault type of the direct-buried optical cable in the region is summarized through investigation, analysis and research on the direct-buried optical cable under severe geological conditions in the west: firstly, the environmental temperature affects the optical cable, the optical fiber attenuation is increased due to expansion caused by heat and contraction caused by cold, and the service life is reduced; secondly, the optical cable is damaged due to geological motion, such as earthquake, landslide, debris flow and the like, and the strength of the optical cable cannot meet the requirement; thirdly, severe corrosion is easily caused to the optical cable in a severe soil environment, and the optical fiber of the optical cable is broken.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a high strength anticorrosion optical cable has reached the anticorrosion that improves optical cable self and mechanical strength performance's purpose, makes the resistance to compression and the tensile strength of optical cable obtain promoting, consequently can satisfy in the demand in complicated soil property region to the armor can prevent stinging of mouse, thereby cracked phenomenon can not appear in the protection optical cable, has consequently improved the security performance of optical cable.

(II) technical scheme

In order to realize the technical problem, the utility model provides a following technical scheme: the utility model provides a high strength anticorrosive optical cable, includes anticorrosive sheath, armor, inner sheath, shielding layer, band layer, water blocking layer, loose tube, optic fibre, reinforced core, packing rope and fine cream, anticorrosive sheath cup joints on the surface of armor, the armor cup joints on the surface of inner sheath, the inner sheath cup joints on the surface of shielding layer, the shielding layer cup joints on the surface of band layer, the band layer cup joints on the surface of water blocking layer, fine cream is filled in the inside of water blocking layer, the loose tube is located the inside of water blocking layer, the loose tube cup joints on the surface of optic fibre, reinforced core is located the inside intermediate position of fine cream, the packing rope is located the inside of water blocking layer.

Furthermore, the anti-corrosion sheath is formed by mixing HDPE (high-density polyethylene) and polyvinyl chloride together, and the content ratio of the HDPE to the polyvinyl chloride is 1: 1.

Further, the armor layer is of a corrugated plastic-coated aluminum strip structure, and the shape of the corrugations on the outer surface of the armor layer is a continuous thread shape.

Furthermore, the inner sheath is a high-strength polyethylene rubber sheath, and the shielding layer is formed by weaving copper wires in a criss-cross mode.

Further, the inside wall and the outside wall of band layer contact with the outside wall of water-blocking layer and the inside wall of shielding layer respectively, the band layer is aramid fiber non-woven fabrics around the package on the surface of water-blocking layer.

Further, the water-blocking layer is of a water-blocking belt structure, the reinforcing core is of a reinforcing steel wire structure, and the filling ropes are of a mesh strand splicing filling structure.

(III) advantageous effects

The utility model provides an anticorrosive optical cable of high strength possesses following beneficial effect:

1. the utility model discloses because the setting of anticorrosive sheath, mix jointly to form by HDPE high density polyethylene and polyvinyl chloride through anticorrosive sheath, high density polyethylene use temperature can reach 100 ℃, hardness, tensile strength and creep nature are superior to low density polyethylene, the wearability, electrical insulation, toughness and cold resistance are better, chemical stability is good, it is insoluble in any organic solvent, acidproof, the corruption of alkali and various salts, the film is little to the permeability of vapor and air, the hydroscopicity is low, the cooperation polyvinyl chloride has better mechanical properties simultaneously, tensile strength is about 60MPa, consequently, make optical cable self possess good corrosion resisting property, with this anticorrosive demand that satisfies in complicated region, thereby the life of optical cable has been improved, avoid the optical cable to lead to appearing damaging the phenomenon because environmental factor, and then the reliability of optical cable embedding mode has been improved.

2. The utility model discloses because the setting of armor, armor through wrinkle plastic-coated aluminum strip structure, can improve the barrier propterty to the cable, the rust-resistant moisture barrier performance of aluminum strip is better than the steel band simultaneously, can improve the rust-resistant demand to buryying, the aluminum strip of wrinkle state can improve the mechanical strength of self simultaneously, make the resistance to compression and the tensile strength of optical cable obtain promoting, consequently can satisfy the demand in complicated soil property region, and the armor can prevent the bite of tearing of mouse, thereby cracked phenomenon can not appear in the protection optical cable, consequently, the security performance of optical cable has been improved.

3. The utility model discloses because the setting of band layer and water-blocking layer, through the band layer of aramid fiber non-woven fabrics and the water-blocking layer of water-blocking area, can form effectual safeguard measure to the inside of optical cable, bury during the underground is in the overcast tide environment for a long time, and aramid fiber non-woven fabrics has the moisture absorption characteristic, can completely cut off external moist steam, the area that absorbs water simultaneously can expand to the gel state when meeting water, consequently can form effectual shutoff effect to the inside of cable, avoided optic fibre to receive moist and appear damaging.

Drawings

Fig. 1 is a schematic structural view of a cross section of an optical cable according to the present invention;

fig. 2 is a top view of the optical cable of the present invention.

In the figure: 1. an anti-corrosion sheath; 2. an armor layer; 3. an inner sheath; 4. a shielding layer; 5. a belting layer; 6. a water resistant layer; 7. loosening the sleeve; 8. an optical fiber; 9. a reinforcing core; 10. filling a rope; 11. and (7) fiber paste.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a high-strength anticorrosion optical cable comprises an anticorrosion sheath 1, an armor layer 2, an inner sheath 3, a shielding layer 4, a belting layer 5, a water-blocking layer 6, a loose tube 7, optical fibers 8, a reinforcing core 9, a filling rope 10 and fiber paste 11, wherein the anticorrosion sheath 1 is sleeved on the outer surface of the armor layer 2, the armor layer 2 is sleeved on the outer surface of the inner sheath 3, the inner sheath 3 is sleeved on the outer surface of the shielding layer 4, the shielding layer 4 is sleeved on the outer surface of the belting layer 5, the belting layer 5 is sleeved on the outer surface of the water-blocking layer 6, the fiber paste 11 is filled in the water-blocking layer 6, the loose tube 7 is positioned in the water-blocking layer 6, the loose tube 7 is sleeved on the outer surface of the optical fibers 8, the reinforcing core 9 is positioned in the middle position in the fiber paste 11, the filling rope 10 is positioned in the water-blocking layer 6, because the anticorrosion sheath 1 is formed by mixing HDPE high-density polyethylene and polyvinyl chloride together through, the high-density polyethylene has the service temperature of 100 ℃, the hardness, the tensile strength and the creep property which are superior to those of the low-density polyethylene, good wear resistance, electrical insulation property, toughness and cold resistance, good chemical stability, insolubility in any organic solvent, acid resistance, alkali resistance and corrosion of various salts, small permeability of a film to water vapor and air, low water absorption, good mechanical property by matching with polyvinyl chloride, and about 60MPa of tensile strength, so that the optical cable has excellent corrosion resistance, the anticorrosion requirement in a complex region is met, the service life of the optical cable is prolonged, the optical cable is prevented from being damaged due to environmental factors, and the reliability of an optical cable embedding mode is improved.

The anti-corrosion sheath 1 is formed by mixing HDPE (high-density polyethylene) and polyvinyl chloride together, the content ratio of the HDPE and the polyvinyl chloride is 1:1, the armor layer 2 is of a corrugated plastic-coated aluminum strip structure, the shape of a corrugation on the outer surface of the armor layer 2 is a continuous thread shape, due to the arrangement of the armor layer 2, the protective performance of the cable can be improved through the armor layer 2 of the corrugated plastic-coated aluminum strip structure, meanwhile, the anti-rust moisture-proof performance of the aluminum strip is better than that of a steel strip, the embedded anti-rust requirement can be improved, meanwhile, the mechanical strength of the aluminum strip in the corrugated state can be improved, the compression resistance and the tensile resistance of the optical cable are improved, the requirement of a complex soil region can be met, the armor layer 2 can prevent mice from being bitten, the optical cable can be protected from being broken, the safety performance of the optical cable is improved, the inner sheath 3 is a high-strength polyethylene rubber sheath, the shielding layer 4 is formed by weaving copper wires in a criss-cross manner, the inner side wall and the outer side wall of the belting layer 5 are respectively contacted with the outer side wall of the waterproof layer 6 and the inner side wall of the shielding layer 4, the belting layer 5 is aramid fiber non-woven fabric wrapped on the outer surface of the waterproof layer 6, the waterproof layer 6 is of a waterproof belt structure, the reinforcing core 9 is of a reinforcing steel wire structure, the filling rope 10 is of a net-shaped strand-spliced filling structure, due to the arrangement of the belting layer 5 and the water-blocking layer 6, effective protection measures can be formed inside the optical cable through the belting layer 5 of the aramid fiber non-woven fabric and the water-blocking layer 6 of the water-blocking tape, the optical cable is buried underground and is in a damp environment for a long time, the aramid non-woven fabric has the moisture absorption characteristic, can isolate external moist water vapor, and simultaneously can expand into a gel state when meeting water, therefore, an effective plugging effect can be formed in the cable, and the optical fiber is prevented from being damaged due to moisture.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anticorrosive optical cable of high strength, includes anticorrosive sheath (1), armor (2), inner sheath (3), shielding layer (4), band layer (5), water-blocking layer (6), pine sleeve pipe (7), optic fibre (8), strengthens core (9), filling rope (10) and fine cream (11), its characterized in that: the anticorrosion protective sleeve (1) is sleeved on the outer surface of an armor layer (2), the armor layer (2) is sleeved on the outer surface of an inner protective sleeve (3), the inner protective sleeve (3) is sleeved on the outer surface of a shielding layer (4), the shielding layer (4) is sleeved on the outer surface of a belting layer (5), the belting layer (5) is sleeved on the outer surface of a waterproof layer (6), fiber paste (11) is filled in the waterproof layer (6), a loose tube (7) is located in the waterproof layer (6), the loose tube (7) is sleeved on the outer surface of an optical fiber (8), a reinforcing core (9) is located in the middle of the interior of the fiber paste (11), and a filling rope (10) is located in the interior of the waterproof layer (6).

2. A high strength corrosion resistant optical cable according to claim 1, wherein: the armor layer (2) is of a corrugated plastic-coated aluminum strip structure, and the shape of the corrugations on the outer surface of the armor layer (2) is a continuous thread shape.

3. A high strength corrosion resistant optical cable according to claim 1, wherein: the inner sheath (3) is a high-strength polyethylene rubber sheath, and the shielding layer (4) is formed by weaving copper wires in a criss-cross mode.

4. A high strength corrosion resistant optical cable according to claim 1, wherein: the inside wall and the outside wall of band layer (5) contact with the outside wall of water-blocking layer (6) and the inside wall of shielding layer (4) respectively, band layer (5) are aramid fiber non-woven fabrics around the package on the surface of water-blocking layer (6).

5. A high strength corrosion resistant optical cable according to claim 1, wherein: the waterproof layer (6) is of a waterproof belt structure, the reinforcing core (9) is of a reinforcing steel wire structure, and the filling rope (10) is of a net-shaped strand splicing filling structure.