CN204215753U - Seabed high-tension cable - Google Patents
Seabed high-tension cable Download PDFInfo
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- CN204215753U CN204215753U CN201420662384.9U CN201420662384U CN204215753U CN 204215753 U CN204215753 U CN 204215753U CN 201420662384 U CN201420662384 U CN 201420662384U CN 204215753 U CN204215753 U CN 204215753U
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- 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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model belongs to technical field of cables, especially relates to seabed high-tension cable, and it is made up of the conductive unit set gradually from inside to outside, metal screen layer, water blocking layer, inner sheath, armour, oversheath, oversheath protective layer; Conductive unit is made up of conductor, insulating barrier, insulation screen, conductor sheath, and on arbitrary cross section, the center of circle and the insulating barrier center of circle of conductor coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Gasket for packing group and reinforcement group are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement group are all close to inner sheath; The material of oversheath protective layer is polyamide; Insulating barrier is organosilane crosslinked polyethylene or special material.Main beneficial effect below the utility model tool: mechanical performance amount of redundancy is more suitable, resource is more saved, more anti-wear performance, more can water-impervious, more anti-seawater, shielding properties better, more can transmit high voltage.
Description
The application is the applying date: on 09 15th, 2014, patent name is: seabed high-tension cable, the patent No. are: the divisional application of the utility model patent of 201420527487.4.
Technical field
The utility model belongs to seabed cable technical field, especially relates to seabed high-tension cable.
Background technology
Earth surface is divided into by each large land the vast waters communicated with each other and is called ocean, and its gross area of the earth is about 3.6 hundred million square kilometres, account for earth surface long-pending 71%, approximate greatly 2.5 times of land surface, world ocean is a huge treasure-house.It has the necessary a large amount of things of the mankind and abundant industrial resources.The main ocean of the earth five are the Pacific Ocean, the Atlantic Ocean and the Indian Ocean, the Arctic Ocean, Antarctic Ocean, major part with land and sea-floor relief line for boundary.
Along with the develop rapidly of industry, the exploration scale of people to Yu Haiyang increases day by day, the value of ocean is also paid attention to more by people, for this reason, need to lay various submarine cable and be used as infrastructure, the most frequently used in submarine cable is seabed high-tension cable, submarine fiber cable, sea floor optoelectronic composite cable.
In prior art, people carried out research for seabed high-tension cable, as: publication No. is CN102290135A, name is called: rated voltage 220kV tri-core photoelectric composite submarine cable, comprise distribute successively from outside to inside outer and drape over one's shoulders layer, armour and inner covering, the electric unit that three two two-phases are circumscribed is provided with in described inner covering, three gaps, place that described electric unit and described inner covering surround all are filled with multiple filler cells, electric unit described in three and the main core segment of the whole stranded formation one stock market cable of all filler cells, gluing strap is surrounded with outside the main core segment of extra large cable after stranded, in all filler cells, wherein at least one is light unit, remaining filler cells is gasket for packing, the rated voltage of this kind of cable reaches 220KV.
For another example: publication No. is CN101807450A, name is called: a kind of sea electric power cable; comprise arrange from the inside to the outside conductor (1), semi-conductive layer (2), insulating barrier (3), resilient coating (4), plumbous cover (5), inner restrictive coating (6), armour (7) and armouring external protection (8); it is characterized in that: the mixed layer that described inner restrictive coating (6) is in series by semiconductive inner restrictive coating and insulation inner restrictive coating two kinds of form head and the tail; solve the problem of induced potential; and reach and reduce the wastage, improve the object of ampacity.
Publication No. is CN101807453A, name is called: for the power cable in seabed; comprise arrange from the inside to the outside core (1), screen (2), insulation (3), insulator screen and sheath (4), armouring inner cushion layer (5), armour (6) and armouring external protection (7); it is characterized in that: described core (1) is made up of steel wire wire and aluminum conductor; described steel wire wire is positioned at the center of core (1), and steel wire wire and aluminum conductor are twisted into the core (1) that steel reinforced aluminium conductor structure is formed jointly.The core that it adopts is made up of steel wire wire and aluminum conductor, and described steel wire wire is positioned at the center of core, and steel wire wire and aluminum conductor are twisted into the core that steel reinforced aluminium conductor structure is formed jointly.Substituted for copper by aluminium, not only save cost, and conductivity also meets standard completely, and steel wire wherein twists the blend of aluminium, solves again the problem of aluminum conductor tensile strength deficiency.
But, applicant is after repetition test, think that seabed of the prior art high-tension cable also exists the space of architecture advances, be mainly manifested in (1) armour amount of redundancy excessive, mainly tensile strength aspect, main it is considered that the rounding of cable in prior art, therefore, the reinforcement that armour adopts, far beyond the tensile strength of demand, causes the waste of resource; (2) anti-wear performance of external protection, water-impervious, anti-seawater performance are to be improved; (3) set-up mode of screen and insulating barrier can improve further, to improve cable performance better; (4) material of insulating barrier needs to be researched and developed further, can reach higher voltage withstand class or performance.
Utility model content
In order to solve the problem, the purpose of this utility model discloses seabed high-tension cable and manufacture method thereof, and they realize by the following technical solutions.
In first embodiment of the present utility model, seabed high-tension cable, is characterized in that it is made up of the conductive unit 1 set gradually from inside to outside, metal screen layer 2, water blocking layer 3, inner sheath 5, armour, oversheath 8, oversheath protective layer 9; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, gasket for packing is one group with three and is formed gasket for packing group, reinforcement is one group with three and is formed reinforcement group, gasket for packing group and reinforcement group are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement group are all close to inner sheath; The material of described oversheath protective layer is polyamide; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
In second embodiment of the present utility model, seabed high-tension cable, it is characterized in that it is made up of the metal screen layer 2 set gradually from inside to outside, water blocking layer 3, tack coat 4, inner sheath 5, armour, oversheath 8, oversheath protective layer 9, metal screen layer inside has conductive unit 1, three conductive units and the metal screen layer phase inscribe of the circumscribed setting of three two two-phases; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of described oversheath protective layer is polyamide; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
In 3rd embodiment of the present utility model, seabed high-tension cable, it is characterized in that it is made up of the metal screen layer 2 set gradually from inside to outside, water blocking layer 3, tack coat 4, inner sheath 5, armour, oversheath 8, metal screen layer inside has conductive unit 1, three conductive units and the metal screen layer phase inscribe of the circumscribed setting of three two two-phases; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, and reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, and gasket for packing and reinforcement are alternately distributed at inner sheath outside, and gasket for packing and reinforcement are all close to inner sheath; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
In 4th embodiment of the present utility model, seabed high-tension cable, it is characterized in that it is made up of the metal screen layer 2 set gradually from inside to outside, water blocking layer 3, tack coat 4, inner sheath 5, armour, oversheath 8, metal screen layer inside has conductive unit 1, three conductive units and the metal screen layer phase inscribe of the circumscribed setting of three two two-phases; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
Seabed high-tension cable in the utility model first embodiment, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath;
Second step: manufacture the step of metal screen layer: get steel band or aluminium strip or copper strips with longitudinal coated mode or the wrapped coated conductive unit formed in a first step of mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: form the step of water blocking layer: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer;
4th step: the step manufacturing inner sheath: get polyethylene or the coated water blocking layer outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with three and is formed gasket for packing group, reinforcement is one group with three and is formed reinforcement group, gasket for packing group and reinforcement group are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement group are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath;
7th step: the step manufacturing oversheath protective layer: get polyamide and its extrusion molding be coated on the oversheath outside manufactured in the 6th step, form seabed high-tension cable finished product, the thickness of described oversheath protective layer is 1.0 ~ 2.0mm.
Seabed high-tension cable in the utility model second embodiment, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath; Above-mentioned steps repeatedly, until form three conductive units;
Second step: the step manufacturing metal screen layer: get three conductive unit two two-phases stranded or parallel placement circumscribedly manufactured in the first step, conductive unit intertwist body; Getting steel band or aluminium strip or copper strips again, to be close to the coated conductive unit intertwist body formed in a first step with longitudinal coated mode or the wrapped mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: the step forming water blocking layer and tack coat: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer; Get polypropylene extrusion molding to be coated on water blocking layer and to form tack coat outward;
4th step: the step manufacturing inner sheath: get polyethylene or the coated tack coat outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath;
7th step: the step manufacturing oversheath protective layer: get polyamide and its extrusion molding be coated on the oversheath outside manufactured in the 6th step, form seabed high-tension cable finished product, the thickness of described oversheath protective layer is 1.0 ~ 2.0mm.
Seabed high-tension cable in the utility model the 3rd embodiment, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath; Above-mentioned steps repeatedly, until form three conductive units;
Second step: the step manufacturing metal screen layer: get three conductive unit two two-phases stranded or parallel placement circumscribedly manufactured in the first step, conductive unit intertwist body; Getting steel band or aluminium strip or copper strips again, to be close to the coated conductive unit intertwist body formed in a first step with longitudinal coated mode or the wrapped mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: the step forming water blocking layer and tack coat: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer; Get polypropylene extrusion molding to be coated on water blocking layer and to form tack coat outward;
4th step: the step manufacturing inner sheath: get polyethylene or the coated tack coat outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing and reinforcement are alternately distributed at inner sheath outside, and gasket for packing and reinforcement are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath; Complete the manufacture of seabed high-tension cable finished product.
Seabed high-tension cable in the utility model the 4th embodiment, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath; Above-mentioned steps repeatedly, until form three conductive units;
Second step: the step manufacturing metal screen layer: get three conductive unit two two-phases stranded or parallel placement circumscribedly manufactured in the first step, conductive unit intertwist body; Getting steel band or aluminium strip or copper strips again, to be close to the coated conductive unit intertwist body formed in a first step with longitudinal coated mode or the wrapped mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: the step forming water blocking layer and tack coat: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer; Get polypropylene extrusion molding to be coated on water blocking layer and to form tack coat outward;
4th step: the step manufacturing inner sheath: get polyethylene or the coated tack coat outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath; Complete the manufacture of seabed high-tension cable finished product.
In the utility model, because reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, therefore, the size of stiffener can carry out appropriate design according to mechanical property requirements, and the plastic layer of its outside achieves technology that is tangent, rounding, namely armour amount of redundancy can be transferred to suitable, coordinates gasket for packing can order resource is more saved.
In the utility model, oversheath and presumable oversheath protective layer, make product be provided with the anti-wear performance more excellent than prior art, water-impervious, anti-seawater performance.
In the utility model, the set-up mode of screen and insulating barrier and of the prior art different, in prior art, screen is close to conductor, is in fact difficult to the effect realizing shielding; Therefore, make the shielding properties of cable greatly improve in the utility model, not only achieve the eliminating of external disturbance, considerably reduce the impact that conductor self radiation is external simultaneously.
In the utility model, owing to have employed special insulating layer material, and suitable thickness proportion and concentricity, the insulation property of cable are increased greatly, and through test, the utility model is for transmitting the electric power of 500 ~ 1000KV, 1000 meters, 30,000 hours, any punch-through is not had to occur.
Cable making method of the present utility model simply, is easily grasped, and adopt the conventional production equipment of cable production firm namely can produce, therefore, equipment investment is few, practical more economically, makes utilization rate of equipment and installations higher.
Therefore, the utility model has following main beneficial effect: cable machinery performance redundancy amount is more suitable, resource is more saved, more anti-wear performance, more can water-impervious, more anti-seawater, shielding properties better, more can transmit high voltage.
Accompanying drawing explanation
Fig. 1 is the perspective view after one section of stripping of the utility model embodiment 1.
Fig. 2 is the cross-sectional structure schematic diagram after Fig. 1 amplifies.
Fig. 3 is the perspective view after one section of stripping of the utility model embodiment 2.
Fig. 4 is the cross-sectional structure schematic diagram after Fig. 3 amplifies.
Fig. 5 is the perspective view after one section of stripping of the utility model embodiment 3.
Fig. 6 is the cross-sectional structure schematic diagram after Fig. 5 amplifies.
Fig. 7 is the perspective view after one section of stripping of the utility model embodiment 4.
Fig. 8 is the cross-sectional structure schematic diagram after Fig. 7 amplifies.
Embodiment
embodiment 1
Ask for an interview Fig. 1 and Fig. 2, seabed high-tension cable, it is characterized in that it is made up of the conductive unit 1 set gradually from inside to outside, metal screen layer 2, water blocking layer 3, inner sheath 5, armour, oversheath 8, oversheath protective layer 9; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, gasket for packing is one group with three and is formed gasket for packing group, reinforcement is one group with three and is formed reinforcement group, gasket for packing group and reinforcement group are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement group are all close to inner sheath; The material of described oversheath protective layer is polyamide; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
Seabed high-tension cable described above, is characterized in that the material of described metal screen layer is steel band or aluminium strip or copper strips, is to be coated on conductive unit outside with longitudinal coated mode or the wrapped mode of spiral; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm.
embodiment 2
Ask for an interview Fig. 3 and Fig. 4, seabed high-tension cable, it is characterized in that it is made up of the metal screen layer 2 set gradually from inside to outside, water blocking layer 3, tack coat 4, inner sheath 5, armour, oversheath 8, oversheath protective layer 9, metal screen layer inside has conductive unit 1, three conductive units and the metal screen layer phase inscribe of the circumscribed setting of three two two-phases; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of described oversheath protective layer is polyamide; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
embodiment 3
Ask for an interview Fig. 5 and Fig. 6, seabed high-tension cable, it is characterized in that it is made up of the metal screen layer 2 set gradually from inside to outside, water blocking layer 3, tack coat 4, inner sheath 5, armour, oversheath 8, metal screen layer inside has conductive unit 1, three conductive units and the metal screen layer phase inscribe of the circumscribed setting of three two two-phases; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, and reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, and gasket for packing and reinforcement are alternately distributed at inner sheath outside, and gasket for packing and reinforcement are all close to inner sheath; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
embodiment 4
Ask for an interview Fig. 7 and Fig. 8, seabed high-tension cable, it is characterized in that it is made up of the metal screen layer 2 set gradually from inside to outside, water blocking layer 3, tack coat 4, inner sheath 5, armour, oversheath 8, metal screen layer inside has conductive unit 1, three conductive units and the metal screen layer phase inscribe of the circumscribed setting of three two two-phases; Described conductive unit 1 is the insulating barrier 12 be coated on by conductor 11, extrusion molding outside conductor, be positioned at insulation screen 13 outside insulating barrier, conductor sheath 14 that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing 6, reinforcement 7, reinforcement 7 is made up of stiffener 71, the plastic layer 72 be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of described insulating barrier is organosilane crosslinked polyethylene or by weight, is made up of: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts following raw material.
Seabed high-tension cable described in arbitrary embodiment in above-mentioned embodiment 2-4, it is characterized in that the material of described metal screen layer is steel band or aluminium strip or copper strips, is the outside being coated on three conductive unit entirety with longitudinal coated mode or the wrapped mode of spiral; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm.
Seabed high-tension cable described in arbitrary embodiment in above-mentioned embodiment 2-4, is characterized in that the material of described tack coat is polypropylene.
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that described water blocking layer is waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape.
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that described insulation screen is conductive plastics.
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described protective cover of conductor is high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE).
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that the material of main part of described inner sheath is polyethylene or polyvinyl chloride.
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described oversheath is high density polyethylene (HDPE) or medium density polyethylene.
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described gasket for packing is polypropylene or LLDPE or low density polyethylene (LDPE).
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described stiffener is steel wire or fiberglass reinforced plastics or aramid yarn.
Seabed high-tension cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE).
Seabed high-tension cable in the utility model embodiment 1, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath;
Second step: manufacture the step of metal screen layer: get steel band or aluminium strip or copper strips with longitudinal coated mode or the wrapped coated conductive unit formed in a first step of mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: form the step of water blocking layer: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer;
4th step: the step manufacturing inner sheath: get polyethylene or the coated water blocking layer outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with three and is formed gasket for packing group, reinforcement is one group with three and is formed reinforcement group, gasket for packing group and reinforcement group are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement group are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath;
7th step: the step manufacturing oversheath protective layer: get polyamide and its extrusion molding be coated on the oversheath outside manufactured in the 6th step, form seabed high-tension cable finished product, the thickness of described oversheath protective layer is 1.0 ~ 2.0mm.
Seabed high-tension cable in the utility model embodiment 2, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath; Above-mentioned steps repeatedly, until form three conductive units;
Second step: the step manufacturing metal screen layer: get three conductive unit two two-phases stranded or parallel placement circumscribedly manufactured in the first step, conductive unit intertwist body; Getting steel band or aluminium strip or copper strips again, to be close to the coated conductive unit intertwist body formed in a first step with longitudinal coated mode or the wrapped mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: the step forming water blocking layer and tack coat: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer; Get polypropylene extrusion molding to be coated on water blocking layer and to form tack coat outward;
4th step: the step manufacturing inner sheath: get polyethylene or the coated tack coat outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath;
7th step: the step manufacturing oversheath protective layer: get polyamide and its extrusion molding be coated on the oversheath outside manufactured in the 6th step, form seabed high-tension cable finished product, the thickness of described oversheath protective layer is 1.0 ~ 2.0mm.
Seabed high-tension cable in the utility model embodiment 3, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath; Above-mentioned steps repeatedly, until form three conductive units;
Second step: the step manufacturing metal screen layer: get three conductive unit two two-phases stranded or parallel placement circumscribedly manufactured in the first step, conductive unit intertwist body; Getting steel band or aluminium strip or copper strips again, to be close to the coated conductive unit intertwist body formed in a first step with longitudinal coated mode or the wrapped mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: the step forming water blocking layer and tack coat: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer; Get polypropylene extrusion molding to be coated on water blocking layer and to form tack coat outward;
4th step: the step manufacturing inner sheath: get polyethylene or the coated tack coat outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing and reinforcement are alternately distributed at inner sheath outside, and gasket for packing and reinforcement are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath; Complete the manufacture of seabed high-tension cable finished product.
Seabed high-tension cable in the utility model embodiment 4, it by the following method step manufacture form:
The first step: manufacture the step of conductive unit: first get many copper wires or aluminium wire or many copper wires and carry out stranded with multiple aluminium wire, the conductor of sectional area needed for being formed; Get organosilane crosslinked polyethylene or by weight again, be made up of following raw material: high density polyethylene (HDPE): 70 ~ 85 parts, ethylene-vinyl acetate copolymer: 10 ~ 20 parts, ethylene-tetrafluoroethylene copolymer: 8 ~ 16 parts, magnesium hydroxide: 10 ~ 15 parts, antioxidant 1010: 3 ~ 5 parts, strontium titanates: 2 ~ 4 parts, calcium titanate: 2 ~ 4 parts, bismuth titanates: 2 ~ 4 parts, magnesium titanate: 2 ~ 4 parts, silicon dioxide: 3 ~ 5 parts, zirconium dioxide: 3 ~ 5 parts; Put into insulating barrier plastic extruding machine, at the outer plastic extruding insulated layer of conductor, the center of circle of conductor and the center of circle of insulating barrier are coincided, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Then conductive plastics extrusion molding is coated on outside insulating barrier and forms insulation screen; Then high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE) extrusion molding are coated on outside insulation screen and form conductor sheath; Above-mentioned steps repeatedly, until form three conductive units;
Second step: the step manufacturing metal screen layer: get three conductive unit two two-phases stranded or parallel placement circumscribedly manufactured in the first step, conductive unit intertwist body; Getting steel band or aluminium strip or copper strips again, to be close to the coated conductive unit intertwist body formed in a first step with longitudinal coated mode or the wrapped mode of spiral outside; When longitudinal direction is coated, have overlapping overlap joint, lap width is 2 ~ 5mm, and lap-joint's PUR bonds, and the peel strength minimum value between lap-joint's steel band or between aluminium strip or between copper strips is 1.6N/mm; When spiral is wrapped, have overlapping overlap joint between the spiral of front and back, lap width is 1 ~ 3mm;
3rd step: the step forming water blocking layer and tack coat: getting water blocking layer, to be that waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape are longitudinally coated on the metal screen layer manufactured in second step outside, forms water blocking layer; Get polypropylene extrusion molding to be coated on water blocking layer and to form tack coat outward;
4th step: the step manufacturing inner sheath: get polyethylene or the coated tack coat outside formation inner sheath manufactured in the third step of polyvinyl chloride extrusion molding;
5th step: manufacture the step of armour: get the inner sheath outside that pre-manufactured gasket for packing manufactures in the 4th step with reinforcement helical coated, wherein reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE); The diameter of gasket for packing is equal with the diameter of reinforcement;
6th step: the step manufacturing oversheath: the armour outside by oversheath plastic extruding machine, high density polyethylene (HDPE) or medium density polyethylene extrusion molding being coated on the 5th step formation, forms oversheath; Complete the manufacture of seabed high-tension cable finished product.
In the utility model, because reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, therefore, the size of stiffener can carry out appropriate design according to mechanical property requirements, and the plastic layer of its outside achieves technology that is tangent, rounding, namely armour amount of redundancy can be transferred to suitable, coordinates gasket for packing can order resource is more saved.
In the utility model, oversheath and presumable oversheath protective layer, make product be provided with the anti-wear performance more excellent than prior art, water-impervious, anti-seawater performance.
In the utility model, the set-up mode of screen and insulating barrier and of the prior art different, in prior art, screen is close to conductor, is in fact difficult to the effect realizing shielding; Therefore, make the shielding properties of cable greatly improve in the utility model, not only achieve the eliminating of external disturbance, considerably reduce the impact that conductor self radiation is external simultaneously.
In the utility model, owing to have employed special insulating layer material, and suitable thickness proportion and concentricity, the insulation property of cable are increased greatly, and through test, the utility model is for transmitting the electric power of 500 ~ 1000KV, 1000 meters, 30,000 hours, any punch-through is not had to occur.
Through applicant's repeated tests, find that the optimization formula of insulating barrier is: insulating layer material by weight, is made up of following raw material: high density polyethylene (HDPE): 80 parts, ethylene-vinyl acetate copolymer: 15 parts, ethylene-tetrafluoroethylene copolymer: 12 parts, magnesium hydroxide: 13 parts, antioxidant 1010: 4 parts, strontium titanates: 3 parts, calcium titanate: 3 parts, bismuth titanates: 3 parts, magnesium titanate: 3 parts, silicon dioxide: 4 parts, zirconium dioxide: 4 parts.
In the application, insulating barrier is through test, and its major parameter is as follows: melt flows mass rate :≤1.8g/10min; Density≤1.06g/cm
3; Hot strength>=21MPa; Break-draw strain>=550%; Resisting environmental stress and cracking F
0/ h>=130h; Dielectric strength>=75kV/mm; Specific insulation>=5 × 10
15ρ
v/ Ω m; Dielectric strength ε
r≤ 2.8.
Optimization formula is through test, and its major parameter is as follows: melt flows mass rate: 1.5g/10min; Density≤1.01g/cm
3; Hot strength: 25MPa; Break-draw strains: 580%; Resisting environmental stress and cracking F
0/ h:160h; Dielectric strength: 82kV/mm; Specific insulation: 5.9 × 10
15ρ
v/ Ω m; Dielectric strength ε
r: 2.6.
Above-mentioned parameter ensure that it has excellent insulation property and extrusion molding processing characteristics, enables cable of the present utility model transmit the electric power of 500 ~ 1000KV.
Cable making method of the present utility model simply, is easily grasped, and adopt the conventional production equipment of cable production firm namely can produce, therefore, equipment investment is few, practical more economically, makes utilization rate of equipment and installations higher.
Therefore, the utility model has following main beneficial effect: cable machinery performance redundancy amount is more suitable, resource is more saved, more anti-wear performance, more can water-impervious, more anti-seawater, shielding properties better, more can transmit high voltage.
The utility model is not limited to above-mentioned preferred forms, and should be appreciated that design of the present utility model can be implemented to use by other various forms, they drop in protection range of the present utility model equally.
Claims (7)
1. seabed high-tension cable, it is characterized in that it is made up of the metal screen layer set gradually from inside to outside, water blocking layer, tack coat, inner sheath, armour, oversheath, metal screen layer inside has the conductive unit of the circumscribed setting of three two two-phases, three conductive units and metal screen layer phase inscribe; Described conductive unit is the insulating barrier be coated on by conductor, extrusion molding outside conductor, be positioned at insulation screen outside insulating barrier, conductor sheath that extrusion molding is coated on outside insulation screen is formed, on arbitrary cross section, the center of circle of conductor and the center of circle of insulating barrier coincide, and the diameter of insulating barrier is 1.5 ~ 5 times of conductor diameter and thickness of insulating layer minimum value is 1.5mm; Described armour is made up of gasket for packing, reinforcement, reinforcement is made up of stiffener, the plastic layer be coated on outside stiffener, gasket for packing is one group with two and is formed gasket for packing group, gasket for packing group and reinforcement are alternately distributed at inner sheath outside, and gasket for packing group and reinforcement are all close to inner sheath; The material of described insulating barrier is organosilane crosslinked polyethylene.
2. seabed according to claim 1 high-tension cable, is characterized in that described water blocking layer is waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape.
3. seabed according to claim 2 high-tension cable, is characterized in that described insulation screen is conductive plastics.
4. seabed according to claim 3 high-tension cable, is characterized in that the material of described protective cover of conductor is high density polyethylene (HDPE) or medium density polyethylene or polyvinyl chloride or low density polyethylene (LDPE).
5. seabed according to claim 4 high-tension cable, is characterized in that the material of main part of described inner sheath is polyethylene or polyvinyl chloride.
6. seabed according to claim 5 high-tension cable, is characterized in that the material of described gasket for packing is polypropylene or LLDPE or low density polyethylene (LDPE).
7. seabed according to claim 6 high-tension cable, is characterized in that the material of described oversheath is high density polyethylene (HDPE) or medium density polyethylene.
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| CN201420662384.9U CN204215753U (en) | 2014-09-15 | 2014-09-15 | Seabed high-tension cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420662384.9U CN204215753U (en) | 2014-09-15 | 2014-09-15 | Seabed high-tension cable |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527487.4U Division CN204045244U (en) | 2014-09-15 | 2014-09-15 | Seabed high-tension cable |
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|---|---|
| CN204215753U true CN204215753U (en) | 2015-03-18 |
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ID=52984402
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2014
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Address after: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee after: Jiangsu Zhongli group Limited by Share Ltd Address before: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee before: Zhongli Science & Technology Group Co., Ltd. |