CN117766208B - High-strength pressure-resistant shore power cable for ship - Google Patents
High-strength pressure-resistant shore power cable for ship Download PDFInfo
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- CN117766208B CN117766208B CN202311776547.6A CN202311776547A CN117766208B CN 117766208 B CN117766208 B CN 117766208B CN 202311776547 A CN202311776547 A CN 202311776547A CN 117766208 B CN117766208 B CN 117766208B
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- 239000010410 layer Substances 0.000 claims abstract 26
- 238000001816 cooling Methods 0.000 claims abstract 14
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract 10
- 239000003063 flame retardant Substances 0.000 claims abstract 10
- 239000011241 protective layer Substances 0.000 claims abstract 7
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract 6
- 239000010935 stainless steel Substances 0.000 claims abstract 6
- 239000004020 conductor Substances 0.000 claims abstract 3
- 239000002184 metal Substances 0.000 claims 6
- 230000037431 insertion Effects 0.000 claims 5
- 238000003780 insertion Methods 0.000 claims 5
- 238000005192 partition Methods 0.000 claims 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000010445 mica Substances 0.000 claims 1
- 229910052618 mica group Inorganic materials 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The application discloses a high-strength pressure-resistant marine shore power cable which comprises a cable body, wherein the cable body sequentially comprises an outer protective layer, an armor layer, a water-blocking wrapping layer, a flame-retardant wrapping layer and a cable core unit from outside to inside, the cable core unit sequentially comprises an inner protective layer, a water-blocking layer, a flame-retardant layer and a plurality of core wires from outside to inside, and the core wires comprise an insulating layer and conductors positioned in the insulating layer. The shore power cable provided by the application has the advantages that the wavy stainless steel plate provides better pressure-resistant buffer performance, better buffer pressure resistance can be realized by matching with the pressure-resistant block, the tensile rope provides better tensile performance, the cooling pipe can realize water cooling or air cooling, and the cooling effect is good; the end joint that sets up makes things convenient for the cable to be connected with external equipment to the end joint adopts split type installation, thereby simple to operate, and end joint can realize spacing to the tip of corrosion resistant plate, and realizes the butt joint with the cooling tube.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a shore power cable for a high-strength pressure-resistant ship.
Background
The marine shore power cable is mainly suitable for various river and sea ship shore wharf power supply systems, is used as a power supply connection flexible wire, and is a special wire cable for power, illumination, control, communication, microcomputer and other systems of various ships, offshore oil platforms and water buildings. The finished cable is not broken down when subjected to an alternating voltage of 3.5kV/5min, and the cable conductor has a maximum operating temperature of 90 ℃ allowed for a long period of time.
The existing shore power cable has the problems of dragging, pressing, frequent cable winding and unwinding and the like when in use, the cable is easy to damage, the service life of the cable is influenced, the service place is close to the shore, the air humidity of the working environment is relatively large, moisture is easy to dip into the cable from the damaged part, insulation is affected with damp to generate short circuit or electric leakage fault, the damaged part is thoroughly broken down to form fault when the cable is seriously damaged, the normal use of the cable is influenced, and the equipment cannot normally run. In addition, in the power transmission process of the cable, the power is generally larger, so that the cable is easy to generate heat, if heat is gathered and cannot be rapidly radiated, the temperature is easy to exceed the maximum working temperature allowed by a cable conductor, the aging and the denaturation of an insulating layer can be accelerated by long-term high temperature, even insulation breakdown can be caused, the cable is scrapped, fire can be caused, and great economic loss is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-strength pressure-resistant shore power cable for a ship.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a cable, includes the cable body, the cable body includes outer sheath, armor from outside to interior in proper order, blocks water around the covering, fire-retardant around the covering and be located fire-retardant around the intraductal cable core unit of covering, the cable core unit includes interior sheath, water-blocking layer, fire-retardant layer and a plurality of heart yearns that are located fire-retardant in proper order from outside to interior, the heart yearn includes the insulating layer and is located the conductor in the insulating layer.
Further, a surrounding limit unit is arranged between the flame-retardant wrapping layer and the cable core unit, a plurality of pressure-resistant units and a plurality of cooling units are arranged between the surrounding limit unit and the cable core unit, the surrounding limit unit comprises a wrapping plate and a plurality of partition plates fixed on the inner side of the wrapping plate, one pressure-resistant unit and one cooling unit are arranged between two adjacent partition plates, a plurality of convex rib parts extending along the length direction of the cable core unit are arranged on the outer side of the inner protective layer, the number of the pressure-resistant units, the number of the cooling units and the number of the convex rib parts are equal, an accommodating groove part extending along the length direction of the cable core unit is formed between two adjacent convex rib parts, and an abutting groove part with an arc-shaped cross section extending along the length direction of the cable core unit is arranged at the convex rib part; the pressure-resistant unit is a wavy stainless steel plate, and the cooling unit comprises a heat-conducting metal plate with an arc-shaped cross section, a heat-conducting metal block fixedly connected with the heat-conducting metal plate, a cooling pipe connected with the heat-conducting metal block through heat-conducting glue and a plurality of pressure-resistant blocks fixedly connected with the heat-conducting metal plate, wherein the stainless steel plate is installed in the accommodating groove part, and the cooling pipe is abutted to the abutting groove part.
Therefore, the wavy stainless steel plate provides better pressure-resistant buffering performance for the cable, better buffer pressure resistance can be realized by matching with the pressure-resistant block, the stainless steel plate, the heat-conducting metal plate and the heat-conducting metal block can guide heat in the cable into the cooling pipe, and the cooling pipe can realize water cooling or air cooling, so that better cooling is realized.
Further, the surrounding plate has a strip-shaped slit extending in the length direction of the cable core unit.
Thereby the surrounding plate is convenient to be unfolded and installed, and the position limit of a plurality of cooling units and a plurality of pressure-resistant units is realized.
Further, in the section of the partition plate, the width of the end connected with the surrounding plate is larger than that of the end far away from the surrounding plate.
Matching the spaces between adjacent pressure-resistant units and adjacent cooling units.
Further, the cooling pipe is a stainless steel pipe.
Further, the heat conducting metal plate and the heat conducting metal block extend along the length direction of the cable core unit.
Thereby realizing better guiding of heat in the cable into the cooling pipe, thereby having good cooling effect.
Further, the plurality of pressure-resistant blocks at each heat-conducting metal plate are rubber blocks and are distributed at equal intervals, and each pressure-resistant block is provided with an abutting cambered surface for abutting against the stainless steel plate.
So that the pressure-resistant block of rubber material provides sufficient pressure-resistant performance.
Further, the number of the pressure-resistant units, the cooling units and the protruding rib parts is 6-8.
Preferably 8.
So that the cable has good pressure resistance and good cooling effect.
Further, an anti-pulling rope is arranged in the convex rib part; the pull-resistant rope is a glass fiber pull-resistant rope.
Thereby providing better tensile properties for the cable.
Further, the flame-retardant wrapping layer is a mica wrapping tape layer.
So that the cable has better flame retardant property.
Further, the armor is a steel wire armor.
Thereby improving the mechanical properties of the cable.
Further, the insulating layer is an ethylene propylene rubber insulating layer.
Thus having excellent performances such as flexibility, bending resistance, heat resistance, corrosion resistance and the like.
Further, the inner sheath is a polyethylene inner sheath.
Further, the water-blocking layer is a water-blocking adhesive layer.
Therefore, the cable has a good water-blocking and damp-proof effect and can effectively prevent moisture from entering.
Further, end joints are mounted at two ends of the cable body, each end joint comprises a first joint and a second joint, each first joint comprises a first cylinder shell part, a first annular mounting block surrounded by the first cylinder shell part and fixedly connected with the first cylinder shell part, and a first flange fixedly connected with the first cylinder shell part, a plurality of annular equidistant fixing blocks are fixed at the first annular mounting block, curved pressing plates are mounted at the fixing blocks, each pressing plate abuts against one end part of the stainless steel plate, each first annular mounting block is provided with an annular inner cavity, each first annular mounting block is provided with a through hole penetrated by the cable core unit, a plurality of insertion pipes communicated with the inner cavity are further connected at the first annular mounting block, each insertion pipe is inserted into one cooling pipe and is fixedly connected with the insertion pipe in a sealing manner, and a communicating pipe shell part communicated with the inner cavity is further fixed at the outer side wall of the first cylinder; the second connector comprises a second cylinder shell part, a second annular mounting block surrounded by the second cylinder shell part and fixedly connected with the second cylinder shell part, and a second flange fixedly connected with the second cylinder shell part, wherein a plurality of conductive mounting pipes and a plurality of conductive pins are fixed at the second annular mounting block, the plurality of conductive mounting pipes and the plurality of conductive pins are equal in quantity and correspond to each other one by one, the corresponding conductive mounting pipes and conductive pins are electrically connected, the quantity of the conductive mounting pipes is equal to the quantity of the cable core units, and conductors of each cable core unit are inserted into one conductive mounting pipe and electrically connected with the conductive mounting pipes.
Thereby make things convenient for the cable to be connected with external equipment through the end connection to the end connection adopts split type installation, thereby installs very conveniently.
Further, the pressing plate is U-shaped and bent, and two ends of the pressing plate are fixedly connected with the fixing blocks.
Further, a sealing ring is arranged between the insertion tube and the cooling tube.
Further, the insertion tube and the cooling tube are connected in a sealing manner through adhesive glue.
Thereby increasing the stability and tightness of the connection between the cannula and the cooling tube.
Further, the corresponding conductive mounting tube and the conductor are welded and fixed.
Thereby achieving a stable connection between the conductive mounting tube and the conductor.
Further, the end part of the cable body is inserted into the first cylinder shell part, the first cylinder shell part and the outer protection layer of the cable body are fixed through adhesive glue, and the inner side wall of the first cylinder shell part is provided with a plurality of strip-shaped bulges.
Thereby increasing the stability of the bond between the first barrel casing portion and the outer jacket of the cable body.
Further, the number of the fixing blocks, the pressing plates and the cannulas at the first joint is 6-8.
Further, the number of the fixing blocks, the pressing plate, the insertion pipe, the cooling pipe and the stainless steel plates are equal.
Further, the first flange is provided with a first sealing gasket, and the second flange is provided with a second sealing gasket.
Thereby improving the sealability and stability of the end fitting.
Further, the first flange and the second flange are fixedly connected through bolts and nuts.
Thereby achieving stable connection of the first joint and the second joint.
Further, the first and second cartridge portions are both cylindrical.
Further, the outer side walls of the first and second cartridge portions each have a plurality of annular cleats.
Therefore, the anti-skid effect is achieved, and the fixed installation of the end connector is facilitated.
The beneficial effects are that:
1. According to the shore power cable, the wavy stainless steel plate provides better pressure-resistant buffer performance, the pressure-resistant block is matched with the stainless steel plate to realize better buffer pressure resistance, the tensile rope provides better tensile performance, the cooling pipe can realize water cooling or air cooling, and the stainless steel plate, the heat-conducting metal plate and the heat-conducting metal block can better guide heat in the cable into the cooling pipe, so that better cooling is realized.
2. The shore power cable is provided with the end connector, so that the cable is convenient to connect with external equipment, and the end connector is installed in a split mode, so that the shore power cable is convenient to install, and good sealing is realized.
3. The end connector provided by the application can limit the end of the stainless steel plate, so that the pressure-resistant unit is stably installed, and the end connector is in butt joint with the cooling pipe, so that the cooling medium is conveniently conveyed to the cooling pipe.
4. According to the shore power cable, the water-blocking wrapping layer, the flame-retardant layer and the water-blocking layer are arranged, so that the cable has good flame-retardant performance and good water-blocking and moisture-proof performance, and is suitable for ships.
Drawings
FIG. 1 is a schematic illustration of a cable body connected to an end fitting;
FIG. 1A is an enlarged schematic view of the area 1A;
FIG. 2 is a schematic view of the cable body, first connector and second connector separated;
FIG. 2A is an enlarged schematic view of the area 2A;
FIG. 3 is a schematic view of a cable body;
FIG. 3A is an enlarged schematic view of the area 3A;
FIG. 4 is a schematic diagram showing the cooperation of the surrounding limit unit with a plurality of cooling units and pressure-proof units;
FIG. 4A is an enlarged schematic view of the area 4A;
FIG. 5 is a schematic illustration of the separation of the internal components of the cable;
fig. 5A is an enlarged schematic view of the area 5A.
Reference numerals illustrate: 1, a cable body; 1.1 an outer sheath; 1.2 armor layers; 1.3, a water-blocking wrapping layer; 1.4 flame retardant wrapping; 1.5 inner sheath; 1.5.1 raised rib portions; 1.5.2 accommodating groove portions; 1.5.3 abutting groove portions; 1.6 a water blocking layer; 1.7 flame retardant layer; 1.8 insulating layers; 1.9 conductors; 2 surrounding the limiting unit; 2.1 enclosing the board; 2.1.1 bar-shaped slits; 2.2 dividing plates; 3 stainless steel plate; 4.1 a heat conductive metal plate; 4.2 a heat conducting metal block; 4.3 cooling pipes; 4.4, briquetting resistance; 5, pulling resistance rope; 6.1 a first cartridge portion; 6.1.1 strip-shaped protrusions; 6.1.2 anti-slip protrusions; 6.2 a first annular mounting block; 6.2.1 perforation; 6.3 a first flange; 6.4 fixing blocks; 6.5 pressing the plate; 6.6 intubation; 6.7 communicating pipe; 7.1 a second cartridge portion; 7.2 a second annular mounting block; 7.3 a second flange; 7.4 conductive mounting tubes; 7.5 conductive pins.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The invention provides a high-strength pressure-resistant marine shore power cable as shown in fig. 1-5, which comprises a cable body 1, wherein the cable body 1 sequentially comprises an outer protective layer 1.1, an armor layer 1.2, a water-blocking wrapping layer 1.3, a flame-retardant wrapping layer 1.4 and a cable core unit positioned in the flame-retardant wrapping layer 1.4 from outside to inside, the cable core unit sequentially comprises an inner protective layer 1.5, a water-blocking layer 1.6, a flame-retardant layer 1.7 and a plurality of core wires positioned in the flame-retardant layer 1.7 from outside to inside, and the core wires comprise an insulating layer 1.8 and a conductor 1.9 positioned in the insulating layer 1.8.
The flame-retardant wrapping layer 1.4 and the cable core unit are provided with a surrounding limit unit 2, a plurality of pressure-resistant units and a plurality of cooling units are arranged between the surrounding limit unit 2 and the cable core unit, the surrounding limit unit 2 comprises a wrapping plate 2.1 and a plurality of partition plates 2.2 fixed on the inner side of Bao Weiban 2.1.1, one pressure-resistant unit and one cooling unit are arranged between two adjacent partition plates 2.2, the outer side of the inner sheath 1.5 is provided with a plurality of protruding rib parts 1.5.1 extending along the length direction of the cable core unit, the pressure-resistant units, the cooling units and the protruding rib parts 1.5.1 are equal in number, a containing groove part 1.5.2 extending along the length direction of the cable core unit is formed between two adjacent protruding rib parts 1.5.1, and the protruding rib parts 1.5.1 are provided with abutting groove parts 1.5.3 with arc-shaped cross sections extending along the length direction of the cable core unit; the pressure-resistant unit is a corrugated stainless steel plate 3, the cooling unit comprises a heat-conducting metal plate 4.1 with an arc-shaped cross section, a heat-conducting metal block 4.2 fixedly connected with the heat-conducting metal plate 4.1, a cooling pipe 4.3 connected with the heat-conducting metal block 4.2 through heat-conducting glue and a plurality of pressure-resistant blocks 4.4 fixedly connected with the heat-conducting metal plate 4.1, the stainless steel plate 3 is installed in the accommodating groove part 1.5.2, and the cooling pipe 4.3 is abutted with the abutting groove part 1.5.3.
The pressure-resistant blocks 4.4 at each heat-conducting metal plate 4.1 are rubber blocks and are distributed at equal intervals, and the pressure-resistant blocks 4.4 are provided with an abutting cambered surface for abutting against the stainless steel plate 3; the number of the pressure-resistant units, the cooling units and the protruding rib parts 1.5.1 is 6-8; the convex rib part 1.5.1 is internally provided with an anti-pulling rope 5; the tensile rope 5 is a glass fiber tensile rope; the flame-retardant wrapping layer 1.4 is a mica wrapping tape layer; the armor layer 1.2 is a steel wire armor layer; the insulating layer 1.8 is an ethylene propylene rubber insulating layer; the inner protective layer 1.5 is a polyethylene inner protective layer.
The two ends of the cable body 1 are provided with end joints, each end joint comprises a first joint and a second joint, each first joint comprises a first cylinder shell part 6.1, a first annular mounting block 6.2 surrounded by the first cylinder shell part 6.1 and fixedly connected with the first cylinder shell part 6.1, and a first flange 6.3 fixedly connected with the first cylinder shell part 6.1, a plurality of annular equally-spaced fixing blocks 6.4 are fixed at the first annular mounting block 6.2, curved pressing plates 6.5 are arranged at the fixing blocks 6.4, each pressing plate 6.5 abuts against one end part of the stainless steel plate 3, each first annular mounting block 6.2 is provided with an annular inner cavity, a through hole 6.2.1 penetrated by the cable core unit is formed at the first annular mounting block, a plurality of insertion pipes 6.6 communicated with the inner cavity are also connected at the first annular mounting block 6.2, each insertion pipe 6.4 is inserted into the inner cavity of the first cylinder shell part 6.1, and the insertion pipe 6.4 is fixedly connected with the outer side wall of the first insertion pipe 6.7; the second connector comprises a second cylinder shell part 7.1, a second annular mounting block 7.2 which is surrounded by the second cylinder shell part 7.1 and fixedly connected with the second cylinder shell part 7.1, and a second flange 7.3 which is fixedly connected with the second cylinder shell part 7.1, wherein a plurality of conductive mounting pipes 7.4 and a plurality of conductive pins 7.5 are fixed at the second annular mounting block 7.2, the plurality of conductive mounting pipes 7.4 and the plurality of conductive pins 7.5 are equal in quantity and correspond to each other one by one, the corresponding conductive mounting pipes and conductive pins are electrically connected, the quantity of the conductive mounting pipes is equal to that of the cable core units, and conductors 1.9 of each cable core unit are inserted into one of the conductive mounting pipes 7.4 and are electrically connected with the conductive mounting pipes.
The end part of the cable body 1 is inserted into the first cylinder shell part 6.1, the first cylinder shell part 6.1 and the outer protective layer 1.1 of the cable body 1 are fixed through adhesive glue, and the inner side wall of the first cylinder shell part 6.1 is provided with a plurality of strip-shaped bulges 6.1.1; the number of the fixing blocks 6.4, the pressing plates 6.5 and the insertion tubes 6.6 at the first joint is 6-8; the number of the fixing blocks 6.4, the pressing plates 6.5, the insertion tubes 6.6, the cooling pipes 4.3 and the stainless steel plates 3 are equal; a first sealing gasket is arranged at the first flange 6.3, and a second sealing gasket is arranged at the second flange 7.3; the first flange 6.3 and the second flange 7.3 are fixedly connected through bolts and nuts; the first cylinder shell part 6.1 and the second cylinder shell part 7.1 are cylindrical; the outer side walls of the first and second cartridge parts 6.1, 7.1 each have a plurality of annular cleats 6.1.2.
Working principle: according to the shore power cable, the wavy stainless steel plate provides better pressure-resistant buffer performance, the rubber-made pressure-resistant block is matched with the shore power cable, the better buffer pressure-resistant performance can be achieved, the tensile rope provides better tensile performance, the cooling pipe can realize water cooling or air cooling, and the stainless steel plate, the heat-conducting metal plate and the heat-conducting metal block can better guide heat in the cable into the cooling pipe, so that better cooling is achieved. The end connector is arranged, so that the cable is connected with external equipment conveniently, and the end connector is installed in a split mode, so that the installation is convenient, and good sealing is realized. The end connector can limit the end of the stainless steel plate, so that the pressure-resistant unit is stably installed, the end connector is in butt joint with the cooling pipe, and the cooling medium is conveniently conveyed to the cooling pipe. By arranging the water-blocking wrapping layer, the flame-retardant layer and the water-resistant layer, the cable has good flame-retardant performance and good water-blocking and moisture-proof performance, and is suitable for ships.
During concrete installation, firstly manufacturing a cable core unit, installing a pressure-resistant unit after the cable core unit is manufactured, installing a stainless steel plate in a containing groove part, then installing a cooling unit, enabling an abutting cambered surface of a pressure-resistant block to abut against the stainless steel plate, enabling a cooling pipe to abut against the abutting groove part, then unfolding and installing a surrounding plate, and limiting the positions of a plurality of cooling units and a plurality of pressure-resistant units through a partition plate; sequentially manufacturing a flame-retardant wrapping layer, a water-blocking wrapping layer, an armor layer and an outer protective layer, thereby finishing the manufacturing of the cable body; then installing a first connector, firstly inserting the end part of the cable body into the first cylinder shell part and penetrating through the perforation at the first annular installation block, so that the insertion pipe is inserted into the corresponding cooling pipe and is fixedly connected in a sealing way through adhesive, meanwhile, the curved pressing plate abuts against the end part of the corresponding stainless steel plate to limit the stainless steel plate, and then fixing the first cylinder shell part and the outer protection layer of the cable body through adhesive; and then installing a second connector, inserting the conductors of the cable core units into the corresponding conductive installation pipes, welding and fixing, and then fixedly connecting the first flange and the second flange through bolts and nuts.
When the cable cooling device is particularly used, the cable cooling device is electrically connected with external equipment through the conductive pins, the cooling mode can be water-cooling or air-cooling, air is injected into one end of the communicating pipe when air-cooling is selected, air is discharged from the other end of the communicating pipe, cooling liquid is injected into one end of the communicating pipe when water-cooling is selected, and the cooling liquid is discharged from the other end of the communicating pipe, so that the cooling medium is conveyed into the cooling pipe through the pins, and the autonomous cooling of the cable is realized. Therefore, the shore power cable has better pressure resistance and tensile property and an autonomous cooling function, thereby being more suitable for high-power transmission.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the following claims.
Claims (8)
1. The shore power cable for the high-strength pressure-resistant ship is characterized by comprising a cable body, wherein the cable body sequentially comprises an outer protective layer, an armor layer, a water-blocking wrapping layer, a flame-retardant wrapping layer and a cable core unit positioned in the flame-retardant wrapping layer from outside to inside, the cable core unit sequentially comprises an inner protective layer, a water-blocking layer, a flame-retardant layer and a plurality of core wires positioned in the flame-retardant layer from outside to inside, and the core wires comprise an insulating layer and conductors positioned in the insulating layer; the flame-retardant cable core unit comprises a cable core unit, wherein a flame-retardant wrapping layer and a cable core unit are arranged between the flame-retardant wrapping layer and the cable core unit, a plurality of pressure-resistant units and a plurality of cooling units are arranged between the wrapping layer and the cable core unit, the wrapping layer comprises a wrapping plate and a plurality of partition plates fixed on the inner side of the wrapping plate, one pressure-resistant unit and one cooling unit are arranged between two adjacent partition plates, a plurality of convex rib parts extending along the length direction of the cable core unit are arranged on the outer side of the inner protective layer, the pressure-resistant units, the cooling units and the convex rib parts are equal in number, a containing groove part extending along the length direction of the cable core unit is formed between two adjacent convex rib parts, and the convex rib parts are provided with abutting groove parts with arc-shaped sections extending along the length direction of the cable core unit; the pressure-resistant unit is a wavy stainless steel plate, and the cooling unit comprises a heat-conducting metal plate with an arc-shaped cross section, a heat-conducting metal block fixedly connected with the heat-conducting metal plate, a cooling pipe connected with the heat-conducting metal block through heat-conducting glue and a plurality of pressure-resistant blocks fixedly connected with the heat-conducting metal plate, wherein the stainless steel plate is installed in the accommodating groove part, and the cooling pipe is abutted to the abutting groove part.
2. The high-strength pressure-resistant marine shore power cable according to claim 1, wherein a plurality of pressure-resistant blocks at each heat-conducting metal plate are rubber blocks and are distributed at equal intervals, and the pressure-resistant blocks are provided with abutting cambered surfaces which abut against the stainless steel plates.
3. The shore power cable for high-strength and pressure-resistant ship according to claim 1, wherein the number of the pressure-resistant units, the cooling units and the ribs is 6-8.
4. The high strength, pressure resistant marine shore power cable of claim 1, wherein said ribs have tensile cords therein; the anti-pulling rope is a glass fiber anti-pulling rope; the flame-retardant wrapping layer is a mica wrapping tape layer; the armor layer is a steel wire armor layer; the insulating layer is an ethylene propylene rubber insulating layer; the inner protective layer is a polyethylene inner protective layer.
5. The shore power cable for high-strength and pressure-resistant ship according to claim 1, wherein end joints are mounted at two ends of the cable body, the end joints comprise a first joint and a second joint, the first joint comprises a first cylinder shell part, a first annular mounting block surrounded by the first cylinder shell part and fixedly connected with the first cylinder shell part, and a first flange fixedly connected with the first cylinder shell part, a plurality of annular equally-spaced fixing blocks are fixed at the first annular mounting block, curved pressing plates are mounted at the fixing blocks, each pressing plate abuts against one end part of the stainless steel plate, the first annular mounting block is provided with an annular inner cavity, the first annular mounting block is provided with a through hole penetrated by the cable core unit, a plurality of insertion pipes communicated with the inner cavity are further connected at the first annular mounting block, each insertion pipe is inserted into one cooling pipe and fixedly connected with the insertion pipe in a sealing manner, and a communicating pipe is further fixedly connected with the outer side wall of the first cylinder shell part; the second connector comprises a second cylinder shell part, a second annular mounting block surrounded by the second cylinder shell part and fixedly connected with the second cylinder shell part, and a second flange fixedly connected with the second cylinder shell part, wherein a plurality of conductive mounting pipes and a plurality of conductive pins are fixed at the second annular mounting block, the plurality of conductive mounting pipes and the plurality of conductive pins are equal in quantity and correspond to each other one by one, the corresponding conductive mounting pipes and conductive pins are electrically connected, the quantity of the conductive mounting pipes is equal to the quantity of the cable core units, and conductors of each cable core unit are inserted into one conductive mounting pipe and electrically connected with the conductive mounting pipes.
6. The shore power cable for high-strength and pressure-resistant ship of claim 5, wherein the end of the cable body is inserted into the first cylinder shell part, the first cylinder shell part and the outer sheath of the cable body are fixed by adhesive, and the inner side wall of the first cylinder shell part is provided with a plurality of strip-shaped bulges.
7. The shore power cable for high-strength and pressure-resistant ship of claim 5, wherein the number of the fixing blocks, the pressing plates and the insertion pipes at the first joint is 6-8; the number of the fixing blocks, the pressing plates, the insertion pipes, the cooling pipes and the stainless steel plates are equal.
8. The high strength, pressure resistant marine shore power cable of claim 5, wherein said first flange has a first gasket and said second flange has a second gasket; the first flange and the second flange are fixedly connected through bolts and nuts; the first cylinder shell part and the second cylinder shell part are cylindrical; the outer side walls of the first cylinder shell and the second cylinder shell are respectively provided with a plurality of annular anti-slip protrusions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311776547.6A CN117766208B (en) | 2023-12-21 | 2023-12-21 | High-strength pressure-resistant shore power cable for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311776547.6A CN117766208B (en) | 2023-12-21 | 2023-12-21 | High-strength pressure-resistant shore power cable for ship |
Publications (2)
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| CN119833222B (en) * | 2025-01-23 | 2025-07-18 | 广州珠江电缆集团(陕西)有限公司 | Environmentally friendly cable and its preparation process |
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| CN207097479U (en) * | 2017-06-14 | 2018-03-13 | 扬州曙光电缆股份有限公司 | A motion-controlled composite flame-retardant, fire-proof, waterproof, rodent-proof and ant-proof flexible cable for rail transit |
| CN116779226A (en) * | 2023-07-25 | 2023-09-19 | 扬州市金鑫电缆有限公司 | Longitudinal watertight net electric cable for underwater cabin penetration |
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| CN202549388U (en) * | 2012-03-25 | 2012-11-21 | 扬州市红旗电缆制造有限公司 | High current-carrying composite shielding armored cable for vessel electric equipment system |
| CN104252906A (en) * | 2014-09-18 | 2014-12-31 | 安徽国电电缆集团有限公司 | Special cable for offshore oil platform |
| CN109949979B (en) * | 2019-02-25 | 2024-04-12 | 高邮市鼎天高分子材料有限公司 | High-flame-retardance high-insulation pressure-resistant cable |
| CN111768908B (en) * | 2020-07-09 | 2021-08-27 | 安徽凌宇电缆科技有限公司 | High-compression-resistance flame-retardant high-temperature-resistant 5G cable |
| CN111883294B (en) * | 2020-07-09 | 2021-12-10 | 扬州市红旗电缆制造有限公司 | Stretch-proofing durability shore connection cable device |
| CN217444091U (en) * | 2021-11-10 | 2022-09-16 | 江苏润华电缆股份有限公司 | Fire-resistant B1-grade flame-retardant power cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207097479U (en) * | 2017-06-14 | 2018-03-13 | 扬州曙光电缆股份有限公司 | A motion-controlled composite flame-retardant, fire-proof, waterproof, rodent-proof and ant-proof flexible cable for rail transit |
| CN116779226A (en) * | 2023-07-25 | 2023-09-19 | 扬州市金鑫电缆有限公司 | Longitudinal watertight net electric cable for underwater cabin penetration |
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