CN-122025232-A - Long-service-life water floating luminous cable and manufacturing method thereof

CN122025232ACN 122025232 ACN122025232 ACN 122025232ACN-122025232-A

Abstract

The invention discloses a long-life water floating luminous cable and a manufacturing method thereof, which belong to the technical field of cables and comprise a conductor, an insulating layer, a protective layer and a water-resistant layer from inside to outside in sequence, wherein the conductor adopts a stranded conductor formed by stranded wires, the insulating layer adopts crosslinked polyethylene, the insulating layer is of an 8-shaped structure, the 8-shaped structure forms two annular rings on the cross section, and the conductor is arranged in the annular rings; the air bags are symmetrically arranged outside the annular ring, and the volume fraction of the air bags is configured to ensure that the overall average density of the cable is not more than 0.90g cm < -3 >. According to the invention, the axially extending and closed air bags are arranged in the cable, the cable can float on the water surface, so that a great amount of dependence on shore-based fixed lamps or external floating bodies is eliminated, the cost of on-site installation and fixed components is obviously reduced, the mobility is improved, the air bags are continuously distributed along the axial direction, the stability of the linear floating bodies is ensured, and the maintenance frequency and the labor cost are reduced.

Inventors

XUE MINGSHENG
LIU QI
YING CHAO
OU YIBO
AN YANG
ZHANG YULIN
WEN WEILIANG
DING FUZENG

Assignees

广州电缆有限公司

Dates

Publication Date: 20260512
Application Date: 20260331

Claims (10)

1. A long-life water floating luminous cable comprises Comprises a conductor, an insulating layer, a protective layer and a water-resistant layer from inside to outside in sequence, The method is characterized in that: The cable comprises a conductor, an insulating layer, an air bag, a protective layer, an energy storage type noctilucent powder, a cable body and a cable, wherein the conductor is a stranded conductor formed by stranding a plurality of monofilaments, the insulating layer is made of crosslinked polyethylene, the insulating layer is of an 8-shaped structure, two annular rings are formed in the cross section of the 8-shaped structure, the conductor is arranged in the annular rings, the air bag is symmetrically arranged on the outer side of the annular rings, the protective layer is wrapped on the outer sides of the air bag and the insulating layer, the protective layer is dispersed with the energy storage type noctilucent powder, and the volume fraction of the air bag is configured to ensure that the overall average density of the cable is not more than 0.90g cm & lt-3 & gt.
2. The high life water floating light emitting cable of claim 1 wherein the conductor is seven strands, one monofilament is provided in the center, and the remaining monofilaments are circumferentially provided on the outside of the center conductor.
3. A long life water floating light emitting cable according to claim 1 wherein the conductor is annealed after filamentization, and is heated to 280 ℃ during annealing, maintained at 2-4H, and then naturally cooled.
4. The long-life water-floating light-emitting cable of claim 1, wherein the insulating layer is a crosslinked polyethylene material.
5. The long-life water floating light emitting cable of claim 4 wherein a connecting rib is disposed in the 8-shaped structure to connect the two annular rings to form the insulating layer.
6. The high life water floating light emitting cable of claim 1 wherein: The protective layer is made of natural-color medium-density polyethylene, and superfine red energy-storage type noctilucent powder is dispersed in the protective layer.
7. The long-life water floating light emitting cable of claim 5, wherein the air bags are arranged on both sides of the connecting rib and extend along the axial direction of the cable to form linear distribution.
8. The long-life water-floating light-emitting cable according to claim 1, wherein the water-resistant layer is arranged on the periphery of the protective layer and is formed on the outer side of the protective layer by extrusion through polyether polyurethane.
9. The long-life water-floating light-emitting cable of claim 1, wherein the insulating layer has a thickness of 0.6-0.7 mm, the protective layer has a thickness of 1.2-1.3-mm, and the water-blocking layer has a thickness of 0.4-0.5-mm.
10. A method for preparing the high-life water floating luminescent cable, which is characterized by comprising the following steps of: s1, drawing raw materials to obtain a plurality of monofilaments, carrying out aging annealing treatment on the monofilaments, heating to 280 ℃ and keeping the temperature outside a furnace for 2-4H, and naturally cooling; S2, twisting the annealed monofilaments into the conductor according to a preset strand number; s3, extruding the insulating layer from the conductor and forming an 8-shaped structural cavity by adopting a non-concentric opposite mold, wherein the insulating layer is subjected to quick cross-linking and shaping by adopting ultraviolet irradiation after extrusion; S4, mixing the natural-color medium-density polyethylene with superfine red energy-storage luminous powder, extruding the protective layer by adopting a semi-extrusion pipe type die, and blowing air into a die core in the extrusion process of the protective layer so as to form the air bag between the protective layer and the insulating layer; And S5, extruding the waterproof layer to serve as an outer coating layer after the protective layer is formed, so that the integrity and the water resistance of the waterproof layer are ensured.

Description

Long-service-life water floating luminous cable and manufacturing method thereof Technical Field The invention relates to a long-service-life water floating luminous cable and a manufacturing method thereof, and belongs to the technical field of cables. Background The existing scheme for lighting and marking on water mainly comprises a shore-based fixed lamp, a waterproof lamp arranged on a floating body and a mode of matching a conventional luminous cable or optical cable with an external light source. The shore-based lamp and the fixed floating body lamp generally depend on an external power supply and a rigid fixed structure, cables, a mounting base or a floating body are required to be laid in construction, and the engineering quantity is large and mobility is lacking. The transmission water lamplight lighting or marking system has the advantages that the installation and maintenance cost is high, complex construction and fixing devices are needed for shore-based or floating body type lamps and is not beneficial to rapid paving and moving, the reliability is insufficient, the lamps and cables are exposed or soaked in water and a marine environment for a long time, the lamps and the cables are susceptible to damage caused by damp water, salt fog, ultraviolet rays and biological fouling and corrosion, sealing failure, insulation aging, conductor corrosion and even potential safety hazards are caused, the visual effect is limited, uniform and continuous linear luminous effect is difficult to form due to point light sources or intermittent arrangement, and the existing luminous cable can not simultaneously meet the low specific gravity floating requirement, the internal long-term air tightness and the multi-layer structural design of electrical safety when the existing luminous cable is luminous. Therefore, there is a need to design a long-life water floating light emitting cable and a manufacturing method thereof, which solve the above problems. Disclosure of Invention The invention aims to solve the technical problems of high installation cost, easiness in external influence, limited visual effect and difficulty in floating by providing the water floating luminous cable with long service life and the manufacturing method. The invention aims to solve the technical problems by adopting the following technical scheme that the water floating luminous cable with long service life comprises Comprises a conductor, an insulating layer, a protective layer and a water-resistant layer from inside to outside in sequence, The cable comprises a conductor, an insulating layer, an air bag, a protective layer, an energy storage type noctilucent powder, a cable body and a cable, wherein the conductor is a stranded conductor formed by stranding a plurality of monofilaments, the insulating layer is made of crosslinked polyethylene, the insulating layer is of an 8-shaped structure, two annular rings are formed in the cross section of the 8-shaped structure, the conductor is arranged in the annular rings, the air bag is symmetrically arranged on the outer side of the annular rings, the protective layer is wrapped on the outer sides of the air bag and the insulating layer, the protective layer is dispersed with the energy storage type noctilucent powder, and the volume fraction of the air bag is configured to ensure that the overall average density of the cable is not more than 0.90g cm & lt-3 & gt. Preferably, the conductor is seven strands, one monofilament is arranged in the center, and the rest of the monofilaments are arranged on the outer side of the center conductor in a surrounding manner. Preferably, the conductor is annealed after wire formation, and is heated to 280 ℃ during annealing, kept for 2-4H, and then naturally cooled. Preferably, the insulating layer is a crosslinked polyethylene material. Preferably, a connecting rib is arranged in the '8' -shaped structure to connect the two annular rings, so as to form the insulating layer. Preferably, the protective layer is made of natural-color medium-density polyethylene, and superfine red energy-storage luminous powder is dispersed in the protective layer. Preferably, the air bags extend along the axial direction of the cable to form linear distribution, and the air bags are arranged at two sides of the connecting rib. Preferably, the water-resistant layer is arranged at the periphery of the protective layer, and is formed at the outer side of the protective layer in an extrusion mode by polyether polyurethane. Preferably, the thickness of the insulating layer is 0.6-0.7 mm, the thickness of the protective layer is 1.2-1.3 mm, and the thickness of the water-resistant layer is 0.4-0.5 mm. The preparation method of the long-life water floating luminous cable preferably comprises the following steps: s1, drawing raw materials to obtain a plurality of monofilaments, carrying out aging annealing treatment on the monofilaments, heating to 280 ℃ and keeping the temperature