CN104376904A - Submarine high voltage cable and manufacturing method thereof - Google Patents

Submarine high voltage cable and manufacturing method thereof Download PDF

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Publication number
CN104376904A
CN104376904A CN201410467691.6A CN201410467691A CN104376904A CN 104376904 A CN104376904 A CN 104376904A CN 201410467691 A CN201410467691 A CN 201410467691A CN 104376904 A CN104376904 A CN 104376904A
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China
Prior art keywords
parts
coated
outside
conductor
layer
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CN201410467691.6A
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CN104376904B (en
Inventor
沈群华
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Haiyue Cable Manufacturing Co., Ltd.
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沈群华
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Priority to CN201610398241.5A priority Critical patent/CN105913907A/en
Priority to CN201410467691.6A priority patent/CN104376904B/en
Priority to CN201610398242.XA priority patent/CN105957589A/en
Priority to CN201610254161.2A priority patent/CN105976912A/en
Priority to CN201610361002.2A priority patent/CN106024104A/en
Priority to CN201610398243.4A priority patent/CN105957607A/en
Priority to CN201610361003.7A priority patent/CN106098168A/en
Priority to CN201610397407.1A priority patent/CN106098170A/en
Application filed by 沈群华 filed Critical 沈群华
Priority to CN201610397375.5A priority patent/CN105931745A/en
Publication of CN104376904A publication Critical patent/CN104376904A/en
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Publication of CN104376904B publication Critical patent/CN104376904B/en
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    • H—ELECTRICITY
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    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
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Abstract

The invention belongs to the technical field of cables and particularly relates to a submarine high voltage cable which is formed by a conducting unit, a metal shielding layer, a water-resistant layer, an inner sheath, an armoring layer, an outer sheath and an outer sheath protective layer which are arranged sequentially from inside to outside. The conducting unit is formed by a conductor, an insulation layer, an insulation shielding layer and a conductor protective layer. On one of any cross sections, the circle center of the conductor coincides with the circular center of the insulation layer, the diameter of the insulation layer is 1.5 to 5 times that of the conductor, and the minimum value of the thickness of the insulation layer is 1.5mm. Filling rope groups and reinforcing part groups are distributed outside the inner sheath in an alternating mode and cling to the inner sheath. The outer sheath protective layer is made of polyamide. The insulation layer is made of organosilane crosslinked polyethylene or special materials. The invention further discloses a manufacturing method of the submarine high voltage cable. The submarine high voltage cable mainly has the following advantages of being proper in mechanical performance redundancy, capable of saving resources, high in abrasion resistance, water seepage resistance, sea water resistance and shielding performance and good in high voltage transmission.

Description

Seabed high-tension cable and manufacture method thereof
Technical field
The invention belongs to seabed cable technical field, especially relate to seabed high-tension cable and manufacture method thereof.
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.
Summary of the invention
In order to solve the problem, the object of the invention is to disclose seabed high-tension cable and manufacture method thereof, they realize by the following technical solutions.
In first embodiment of the present invention, 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 invention, 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 invention, 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 invention, 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 present invention 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 present invention 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 present invention 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 present invention 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 present invention, 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 present invention, 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 present invention, 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 present invention, not only achieve the eliminating of external disturbance, considerably reduce the impact that conductor self radiation is external simultaneously.
In the present invention, 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 present invention 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 invention 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 present invention 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 invention process example 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 invention process example 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 invention process example 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 invention process example 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 invention process example 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 invention process example 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 invention process example 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 invention process example 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 present invention, 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 present invention, 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 present invention, 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 present invention, not only achieve the eliminating of external disturbance, considerably reduce the impact that conductor self radiation is external simultaneously.
In the present invention, 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 present invention 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 invention transmit the electric power of 500 ~ 1000KV.
Cable making method of the present invention 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 present invention 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 present invention is not limited to above-mentioned preferred forms, and should be appreciated that design of the present invention can be implemented to use by other various forms, they drop in protection scope of the present invention equally.

Claims (10)

1. seabed high-tension cable, is characterized in that 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; 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 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.
2. 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, oversheath protective layer, 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 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.
3. 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, and reinforcement is made up of stiffener, the plastic layer 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.
4. 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 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.
5. the seabed high-tension cable according to claim 1 to claim 4 any one, is characterized in that described water blocking layer is waterstop or nonwoven fabrics or polyester band or aluminium-plastic tape; Described insulation screen is conductive plastics; 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); The material of main part of described inner sheath is polyethylene or polyvinyl chloride; The material of described gasket for packing is polypropylene or LLDPE or low density polyethylene (LDPE); The material of described stiffener is steel wire or fiberglass reinforced plastics or aramid yarn; The material of described plastic layer is polypropylene or LLDPE or low density polyethylene (LDPE) or high density polyethylene (HDPE).
6. seabed according to claim 5 high-tension cable, is characterized in that the material of described oversheath is high density polyethylene (HDPE) or medium density polyethylene.
7. the manufacture method of seabed high-tension cable, is characterized in that it comprises following methods step:
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: 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 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.
8. the manufacture method of seabed high-tension cable, is characterized in that it comprises following methods step:
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.
9. the manufacture method of seabed high-tension cable, is characterized in that it comprises following methods step:
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.
10. the manufacture method of seabed high-tension cable, is characterized in that it comprises following methods step:
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.
CN201410467691.6A 2014-09-15 2014-09-15 Submarine high voltage cable and manufacturing method thereof Active CN104376904B (en)

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CN201610398242.XA CN105957589A (en) 2014-09-15 2014-09-15 Watertight submarine high-voltage cable with good shielding performance
CN201610254161.2A CN105976912A (en) 2014-09-15 2014-09-15 Undersea high-voltage cable, undersea high-voltage cable manufacturing method and insulation layer material for high-voltage cables
CN201610361002.2A CN106024104A (en) 2014-09-15 2014-09-15 Inner sheath for seafloor high-voltage power cable and manufacturing method for inner sheath
CN201610398243.4A CN105957607A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610398241.5A CN105913907A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610397407.1A CN106098170A (en) 2014-09-15 2014-09-15 A kind of seabed high tension cable of water-impervious
CN201410467691.6A CN104376904B (en) 2014-09-15 2014-09-15 Submarine high voltage cable and manufacturing method thereof
CN201610397375.5A CN105931745A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable with relatively good shielding performance
CN201610361003.7A CN106098168A (en) 2014-09-15 2014-09-15 One seabed high voltage power cable armouring cable core and manufacture method thereof

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CN201610397078.0A Division CN105825954A (en) 2014-09-15 2014-09-15 Submarine high-pressure cable good in shielding performance
CN201610324922.7A Division CN105825928A (en) 2014-09-15 2014-09-15 Seabed high-voltage power cable and manufacture method for same
CN201510049124.3A Division CN104700936A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable and production method for same
CN201610254161.2A Division CN105976912A (en) 2014-09-15 2014-09-15 Undersea high-voltage cable, undersea high-voltage cable manufacturing method and insulation layer material for high-voltage cables
CN201610398243.4A Division CN105957607A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610398241.5A Division CN105913907A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610397407.1A Division CN106098170A (en) 2014-09-15 2014-09-15 A kind of seabed high tension cable of water-impervious
CN201610361002.2A Division CN106024104A (en) 2014-09-15 2014-09-15 Inner sheath for seafloor high-voltage power cable and manufacturing method for inner sheath
CN201610361003.7A Division CN106098168A (en) 2014-09-15 2014-09-15 One seabed high voltage power cable armouring cable core and manufacture method thereof
CN201610397375.5A Division CN105931745A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable with relatively good shielding performance
CN201510049122.4A Division CN104700935A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable and production method for same
CN201510049118.8A Division CN104700934A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable and production method for same
CN201610398242.XA Division CN105957589A (en) 2014-09-15 2014-09-15 Watertight submarine high-voltage cable with good shielding performance

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CN201610361002.2A Pending CN106024104A (en) 2014-09-15 2014-09-15 Inner sheath for seafloor high-voltage power cable and manufacturing method for inner sheath
CN201610398242.XA Withdrawn CN105957589A (en) 2014-09-15 2014-09-15 Watertight submarine high-voltage cable with good shielding performance
CN201610397375.5A Withdrawn CN105931745A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable with relatively good shielding performance
CN201610398243.4A Withdrawn CN105957607A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610398241.5A Withdrawn CN105913907A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610254161.2A Pending CN105976912A (en) 2014-09-15 2014-09-15 Undersea high-voltage cable, undersea high-voltage cable manufacturing method and insulation layer material for high-voltage cables
CN201410467691.6A Active CN104376904B (en) 2014-09-15 2014-09-15 Submarine high voltage cable and manufacturing method thereof
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CN201610361002.2A Pending CN106024104A (en) 2014-09-15 2014-09-15 Inner sheath for seafloor high-voltage power cable and manufacturing method for inner sheath
CN201610398242.XA Withdrawn CN105957589A (en) 2014-09-15 2014-09-15 Watertight submarine high-voltage cable with good shielding performance
CN201610397375.5A Withdrawn CN105931745A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable with relatively good shielding performance
CN201610398243.4A Withdrawn CN105957607A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
CN201610398241.5A Withdrawn CN105913907A (en) 2014-09-15 2014-09-15 Submarine high-voltage cable
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CN105885465A (en) * 2016-05-18 2016-08-24 无为县金华电缆材料有限公司 Formula of ultraviolet-resistant waterproof cable armored layer
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CN105931745A (en) 2016-09-07
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CN105913907A (en) 2016-08-31
CN105957589A (en) 2016-09-21

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