CN219225933U

CN219225933U - Shore-sea connection power cable for ocean engineering equipment

Info

Publication number: CN219225933U
Application number: CN202320807179.6U
Authority: CN
Inventors: 于海鹏; 于廷忠; 宫家亮; 姜楠; 刘远峰; 王丽艳; 周盛玉
Original assignee: Dalian Kepule Cable Group Co ltd
Current assignee: Dalian Kepule Cable Group Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-06-20
Anticipated expiration: 2033-04-13

Abstract

The utility model provides a shore-sea connection power cable for ocean engineering equipment, which comprises an oxygen-free copper conductor, wherein a first water blocking tape is wrapped outside the oxygen-free copper conductor, a wire core is made by extruding an insulating layer outside the first water blocking tape, 3 wire cores are cabled, and a first high-strength non-woven fabric and a second water blocking tape are wrapped after the wires are cabled, wherein a gap between the cabled cores is filled by adopting a water blocking filling rope, an inner sheath is extruded outside the second water blocking tape, and a second high-strength non-woven fabric and a third water blocking tape are sequentially arranged outside the inner sheath; the third water-blocking band is provided with an armor layer, the armor layer adopts a double-layer steel wire armor reverse sparse winding steel belt tightening structure armor, and the outermost layer of the cable is a cable outer sheath. The shore-sea connection power cable for the ocean engineering equipment has compact and reasonable structure, has the longitudinal and radial water blocking performances of the cable, is excellent in performance, and is particularly suitable for a power cable of a shore-sea connection matched equipment.

Description

Shore-sea connection power cable for ocean engineering equipment

Technical Field

The utility model relates to a cable technology, in particular to a shore-sea connection power cable for ocean engineering equipment.

Background

Humans rely on various congenital sources on the earth for survival.

However, with the development of the current technology, land life cannot be taken away, but the land area is about 1/3 of the earth, and more congenital resources still exist in the sea.

For this reason, in order to obtain more ocean resources, people want to use various methods, and basically rely on development of electric appliances and mechanical equipment, and in the process of using the electric appliances and the mechanical equipment, currently, main kinetic energy is still dependent on electric power transmission, especially in offshore areas, often ocean engineering machinery works in seawater, and a power line extends from the shore to the water.

Although the actual distance is not far from the shore to the offshore underwater, the laying environment of the underwater cable is extremely severe, and the underwater cable can only reach the underwater cable from the shore to the offshore underwater through a sand and stone area, a reef area and a cement area. The cable needs to withstand the conditions of undercurrent swaying, physical impact and seawater corrosion for a long time after the cable is laid, thus leading to the current situation that the service life of the cable is extremely low, the cable is half-loaded in one year for three and five months for a long time, the cable is sequentially subject to water inflow, short circuit and even mechanical equipment failure,

a large amount of manpower and material resources are consumed for replacing the cable every time, and a series of resources are consumed for replacing the cable from personnel, ships and new cables, so that great waste is caused, and therefore, the novel ocean engineering cable capable of prolonging the service life of the cable is urgently needed to improve the product characteristics along with the progress of technology.

Disclosure of Invention

The utility model aims to solve the problem of resource waste caused by extremely low service life of a traditional underwater cable due to severe service environment, and provides a shore-sea connection power cable for ocean engineering equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the shore-sea connection power cable for the ocean engineering equipment comprises an oxygen-free copper conductor, wherein a first water blocking tape is wrapped outside the oxygen-free copper conductor, a wire core is made by wrapping an insulating layer in an extrusion mode, 3 wire cores are cabled, and a first high-strength non-woven fabric and a second water blocking tape are wrapped after the 3 wire cores are cabled, gaps between the cabled cores are filled by water blocking filling ropes, an inner sheath is wrapped outside the second water blocking tape in an extrusion mode, and a second high-strength non-woven fabric and a third water blocking tape are sequentially arranged outside the inner sheath; the third water-blocking band is provided with an armor layer, the armor layer adopts a double-layer steel wire armor reverse sparse winding steel belt tightening structure armor, and the outermost layer of the cable is a cable outer sheath.

Further, the oxygen-free copper conductor is a 5-class conductor or better than a 5-class conductor, and water blocking yarns are arranged in the conductor.

Further, the oxygen-free copper conductor is a tinned copper conductor, so that marine environment oxidation is effectively avoided.

Further, water blocking yarns are filled in the middle of the oxygen-free copper conductor.

Further, the water-blocking yarn is a very fine structure which is suitable for filling gaps among the conductor monofilaments, and the structure is formed by combining water-absorbing resin and reinforcing ribs, and is water-swelling and adhesive-binding, so that moisture is prevented from spreading.

Further, the insulating layer is a nitrile elastomer insulation.

Further, the water blocking tapes (the first water blocking tape, the second water blocking tape, the third water blocking tape, the fourth water blocking tape and the fifth water blocking tape) are formed by processing materials such as polyester non-woven fabrics, adhesives, high-speed expansion high polymer water absorbing resins and the like, and contact with the water absorbing resins in the water blocking tapes when water is infiltrated. The water-absorbing resin rapidly expands hundreds of times after absorbing water, is filled in a gel state, and effectively permeates the water of the tissue into the cable.

Further, the inner sheath is made of thermoplastic polyether polyurethane elastomer, and has the excellent characteristics of high strength, high toughness, wear resistance, oil resistance, seawater corrosion resistance and the like.

Further, the power cable is connected with the shore and sea for ocean engineering equipment, double-layer steel wire armor is adopted to reversely sparse winding steel belt to tighten structural armor, a water blocking belt is arranged between armor layers, and the armor layers are of three-layer metal three-dimensional structures. Specifically, the armor adopts double-deck steel wire armor reverse sparse winding steel band to tie up its structure armor from inside to outside and is respectively: the novel high-strength waterproof tape comprises a first steel wire armor layer, a third high-strength non-woven fabric, a fourth waterproof tape, a second steel wire armor layer, a steel tape layer, a fourth high-strength non-woven fabric and a fifth waterproof tape.

Further, the double-layer steel wire reversely winds around the armor, the first steel wire armor layer and the second steel wire armor layer adopt 316 stainless steel wires, the anti-oxidation and anti-corrosion properties are extremely strong, and meanwhile, the overall tensile resistance of the cable can be remarkably improved.

Further, the steel belt layer is a stainless steel belt, so that the integral pressure resistance of the cable can be effectively improved.

Furthermore, the high-density polyethylene sheath has extremely strong low-temperature resistance and abrasion resistance, and simultaneously has extremely excellent water resistance in the cable sheath material.

The shore-sea connection power cable for the ocean engineering equipment has reasonable and compact structure, and has the following advantages compared with the prior art:

(1) The cable has long service life, fully considers the severe environment of ocean engineering cable laying in the whole design, sets up multilayer anti-swaying, tensile and anti-mechanical impact structure, provides powerful shelter for the steady operation of inner core cable.

(2) The lateral pressure resistance is strong. The outermost layer of the cable armor is provided with a stainless steel tape armor, and has stronger lateral pressure resistance.

(3) The cable armor layer is designed according to a double-layer steel wire armor structure, so that the tensile resistance and the anti-swaying performance of the cable can be greatly improved.

(4) The cable is high in abrasion resistance, the cable is provided with the high-density polyethylene as the outer sheath, the excellent abrasion resistance of the material is utilized, a powerful shielding barrier is arranged for the cable inner core structure, and meanwhile, the 3 layers of three-dimensional armor layers in the cable provide powerful structural support for the outer sheath.

(5) The cable has strong corrosion resistance, from the adoption of a corrosion-resistant tin-plated copper conductor to the adoption of polyurethane for the inner sheath and high-density polyethylene for the outer sheath, even the armor layer is made of stainless steel, all structures take the high corrosiveness of the seawater environment into consideration, and the cable is ensured to safely and stably transmit electric energy.

(6) The cable is provided with a radial waterproof layer 2 layer, a polyurethane inner sheath and a high-density polyethylene outer sheath, and the two materials are 2 materials with the best waterproof performance in the extrusion structure, so that moisture can be effectively prevented from spreading from the inside of the cable.

(7) The longitudinal waterproof capability is strong, the waterproof yarns are arranged from the inner structure of the conductor, the waterproof strips are arranged between the cable layer-by-layer structure, and the two materials can expand when meeting water, so that the water can be effectively prevented from diffusing longitudinally along the cable.

(8) The practicality is strong, and the cable itself is soft outside hard in the structure, and the cable sets up inside and outside 2 layers of anti-wear corrosion protection cover, and when the bank termination line, adaptable bank electric cabinet, automatically controlled room lay the characteristics that the environmental bending point is many, and the bank lays the environment and does not have mechanical external damage, and the customer can get rid of armor and oversheath structure, still guarantees power supply safety and life.

In summary, the shore-sea connection power cable for the ocean engineering equipment has a compact structure, and can replace the existing product under the condition of ensuring continuous and safe power supply from the aspects of corrosion resistance, tensile resistance, compressive resistance, oxidation resistance, radial water resistance and longitudinal water resistance multi-point design, thereby greatly prolonging the service life of the ocean engineering cable.

Drawings

FIG. 1 is a schematic cross-sectional view of a shore-sea power cable for marine engineering equipment according to the present utility model.

Detailed Description

The utility model is further illustrated by the following examples:

examples

The embodiment discloses a shore-sea connection power cable for ocean engineering equipment, as shown in fig. 1, the shore-sea connection power cable comprises an oxygen-free copper conductor 1, wherein the oxygen-free copper conductor 1 is 5 types or better than five types of conductors, the oxygen-free copper conductor 1 in the embodiment is tin-plated copper, water-blocking yarns are arranged in a conductor structure, and the addition of the water-blocking yarns can improve the longitudinal water-blocking capacity of the cable conductor.

The oxygen-free copper conductor 1 is externally wrapped with a first water-blocking tape 2, an insulating layer 3 is extruded outside the first water-blocking tape 2 to form wire cores, the 3 wire cores are cabled, and after the cabling, a first high-strength non-woven fabric 5 and a second water-blocking tape 6 are wrapped, wherein a gap between the cabled wire cores is filled by a water-blocking filling rope 4, an inner sheath 7 is extruded outside the second water-blocking tape 6, and a second high-strength non-woven fabric 8 and a third water-blocking tape 9 are sequentially arranged outside the inner sheath 7; the third water blocking strip 9 is provided with the armor outward, the armor adopts the reverse sparse steel strip of double-deck steel wire armor to tie up structural armor its structure from inside to outside respectively: a first steel wire armor layer 10, a third high-strength non-woven fabric 11, a fourth water-blocking tape 12, a second steel wire armor layer 13, a steel tape layer 14, a fourth high-strength non-woven fabric 15 and a fifth water-blocking tape 16; at the outermost layer of the cable is a cable jacket 17.

The insulating layer 3 is made of nitrile elastomer. The first water-blocking tape 2, the second water-blocking tape 6, the third water-blocking tape 9, the fourth water-blocking tape 12 and the fifth water-blocking tape 16 are formed by processing materials such as polyester non-woven fabrics, adhesives, high-speed expansion high-molecular water-absorbing resins and the like, and are contacted with the water-absorbing resins in the water-blocking tapes when water is infiltrated. The water-absorbing resin rapidly expands hundreds of times after absorbing water, is filled in a gel state, and effectively permeates the water of the tissue into the cable. The inner sheath 7 is a thermoplastic polyether polyurethane elastomer inner sheath. The first steel wire armor layer 10 and the second steel wire armor layer 13 adopt 316 stainless steel wires. The steel belt layer 14 is a stainless steel belt. The cable outer sheath 17 is a crack resistant high density polyethylene.

The utility model is not limited to the shore-sea connection power cable for ocean engineering equipment described in the above embodiments, wherein the change of the structure of the oxygen-free copper conductor and the change of the thickness of each layer are all within the protection scope of the utility model.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The shore-sea connection power cable for the ocean engineering equipment comprises an oxygen-free copper conductor, wherein a first water-blocking tape (2) is wrapped outside the oxygen-free copper conductor (1), an insulating layer (3) is extruded outside the first water-blocking tape (2) to form a wire core, 3 wire cores are cabled, a first high-strength non-woven fabric (5) and a second water-blocking tape (6) are wrapped after the wire cores are cabled, gaps between the cabled cores are filled by adopting water-blocking filling ropes (4), an inner sheath (7) is extruded outside the second water-blocking tape (6), and a second high-strength non-woven fabric (8) and a third water-blocking tape (9) are sequentially arranged outside the inner sheath (7); the third water blocking belt (9) is externally provided with an armor layer, the armor layer adopts a double-layer steel wire armor reverse sparse winding steel belt tightening structure armor, and the outermost layer of the cable is a cable outer sheath (17).

2. A shore-sea connection power cable for marine engineering equipment according to claim 1, characterized in that the oxygen-free copper conductor (1) is a class 5 or better conductor.

3. A shore-sea connection power cable for marine engineering equipment according to claim 1, characterized in that the oxygen-free copper conductor (1) is a tin-plated copper conductor.

4. Shore-sea connection power cable for marine engineering equipment according to claim 1, characterized in that the middle of the oxygen-free copper conductor (1) is filled with water-blocking yarns.

5. A shore-sea connection power cable for marine engineering equipment according to claim 1, wherein the insulating layer (3) is a nitrile elastomer insulation.

6. A shore-sea connection power cable for marine engineering equipment according to claim 1, wherein the inner sheath (7) is a thermoplastic polyether polyurethane elastomer inner sheath.

7. The shore-sea power cable for ocean engineering equipment according to claim 1, wherein the armor layer adopts a double-layer steel wire armor reverse sparse winding steel belt tightening structure to armor the structure from inside to outside respectively: the novel high-strength waterproof belt comprises a first steel wire armor layer (10), a third high-strength non-woven fabric (11), a fourth water-blocking belt (12), a second steel wire armor layer (13), a steel belt layer (14), a fourth high-strength non-woven fabric (15) and a fifth water-blocking belt (16).

8. A shore-sea connection power cable for marine engineering equipment according to claim 7, wherein the first wire armour layer (10) and the second wire armour layer (13) are made of 316 stainless steel wires.

9. A shore-sea connection power cable for marine engineering equipment according to claim 7, wherein said steel band layer (14) is a stainless steel band.

10. A shore-sea connection power cable for marine engineering equipment according to claim 1, wherein the cable outer jacket (17) is a crack-resistant high density polyethylene.