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CN207602263U - High ferro graphene semi-conductive screen novel cable - Google Patents

High ferro graphene semi-conductive screen novel cable Download PDF

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Publication number
CN207602263U
CN207602263U CN201721562624.8U CN201721562624U CN207602263U CN 207602263 U CN207602263 U CN 207602263U CN 201721562624 U CN201721562624 U CN 201721562624U CN 207602263 U CN207602263 U CN 207602263U
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CN
China
Prior art keywords
layer
screen
copper
high ferro
graphene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721562624.8U
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Chinese (zh)
Inventor
卫建良
胡涛
游靖华
张忠翠
黎亮
覃鹏
王雪
罗建国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI LONGTENG HONGQI CABLE GROUP CO Ltd
Original Assignee
HUBEI LONGTENG HONGQI CABLE GROUP CO Ltd
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Filing date
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Priority to CN201721562624.8U priority Critical patent/CN207602263U/en
Application granted granted Critical
Publication of CN207602263U publication Critical patent/CN207602263U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Insulated Conductors (AREA)

Abstract

A kind of high ferro graphene semi-conductive screen novel cable including conductor, is provided with conductor shield, insulating layer and insulation screen by the way of three-layer co-extruded outside conductor, conductor shield and insulation screen are graphene semiconductive shielding layer;Special more tengential belt layers, metal screen layer, inner restrictive coating, metal armor layers and external sheath layer are disposed with outside insulation screen from the inside to the outside;Metal screen layer is made of the copper wires dredge winding layer and copper strips lapping layer being set to outside special more tengential belt layers, and copper wires dredge winding layer copper wire is dredged opposite with the copper strips lapping direction of copper strips lapping layer around direction.High ferro graphene semi-conductive screen novel cable provided by the utility model, it is special can to solve the problems, such as that existing cable can not meet power supply safety, use condition, comprehensive performance is superior, electric property and excellent physical properties, waterproof, termite-resistant rodent-resistant integrated protection excellent effect, safe and reliable, service life increase by 2 times or so than traditional cable.

Description

High ferro graphene semi-conductive screen novel cable
Technical field
The utility model is related to high ferro field cable, especially a kind of high ferro graphene semi-conductive screen novel cable.
Background technology
The electric railway mileage in China will be only located at after Russia, leap to second place of the world.And electrization rate, Railway transporting amount proportion, electric railway technical equipment and the train operation that Electrified Double Track Railway rate, electric railway undertake Speed etc. will all enter world's rank of advanced units.
Electric energy needed for electric express locomotive by transmission line of electricity, transformation device, power for traction network, is returned from power plant The electricity supplying and using system supply of the compositions such as current circuit.The power supply system that countries in the world use is different, the electric railway in China 25 kilovolts of single phase industrial frequences (50 hertz) Alternating Current Power Supply standard is selected.Traction substation introduces 220 kilovolts or 110 from national grid Kilovolt three-phase alternating-current supply, three-phase electricity is converted to 27.5 kilovolts of power supplys of single phase ac that suitable electric train uses and served connect It touches net, according to railroad industry standard TB/T 2822-1997, the construction of cable is:
1st, conductor, 2, conductor shielding, 3, crosslinked polyetylene insulated, 4, insulation shielding, 5, brass wire shieldings, 6, polyethylene or Pvc sheath.
However, in practical application, the cable of above structure has the following disadvantages/deficiency:
1st, the electric property of cable is general, and service life is short, it is impossible to meet electrified rapid transit railway power supply safety;
2nd, the construction of cable is simple, can only meet the use under general condition, the use for not having specific condition.
Invention content
The technical problem to be solved by the utility model is to provide a kind of high ferro graphene semi-conductive screen novel cables, can To solve the problems, such as that it is special that existing cable can not meet power supply safety, use condition, comprehensive performance is superior, electric property and Excellent physical properties, waterproof, termite-resistant rodent-resistant integrated protection excellent effect, safe and reliable, service life increase by 2 times than traditional cable Left and right.
In order to solve the above technical problems, technical solution is used by the utility model:A kind of high ferro graphene semiconductive Novel cable is shielded, including conductor, is provided with conductor shield, insulating layer and insulation screen outside conductor by the way of three-layer co-extruded Cover layer,
Conductor shield and insulation screen are graphene semiconductive shielding layer;
Special more tengential belt layers, metal screen layer, inner restrictive coating, metal armouring are disposed with outside insulation screen from the inside to the outside Layer and external sheath layer;
Metal screen layer is made of the copper wires dredge winding layer and copper strips lapping layer being set to outside special more tengential belt layers, copper wires dredge winding layer Copper wire is dredged opposite with the copper strips lapping direction of copper strips lapping layer around direction;
Metal armor layers are aldray armor.
Insulating layer is 110KV grades of ultra-clean crosslinked polyetylene insulated layers.
Copper wires dredge winding layer is dredged around 14~18 times that pitch is brass wire shielding outer diameter, and it is left-hand to dredge around direction.
The surface of copper wires dredge winding layer is tightened by the wrapped copper strips lapping layer of dextrad.
The tensile strength of the aluminum-magnesium-silicon alloy wire of aldray armor is not less than 325MPa.
External sheath layer is environment protection, rat anti-termite agent high-density polyethylene outer sheath layer.
High ferro graphene semi-conductive screen novel cable provided by the utility model, has the beneficial effect that:
1st, conductor shielding, insulation shielding can substantially reduce semiconductive inside and outside cable using graphene semi-conductive shielding material The volume resistivity of shielded layer improves its thermal stability, improves homo-effect of the shielded layer to electric field, effectively reduces cable operation In the partial discharge phenomenon that is likely to occur, ensure the safety and reliability of power circuit operation, improve cable service life.
2nd, metal screen layer is made of the copper wires dredge winding layer and copper strips lapping layer being set to outside special more tengential belt layers, dredges copper wire Winding layer is electrically being connected, and what is generated when cable is run is electromagnetic-field-shielded in insulated wire cores, and is produced from the external world with reducing Raw electromagnetic interference and fault current is induced one safely earthed system, protect system safety operation.
3rd, the design of special more tengential belt layers can effectively ensure the quality of copper wires dredge winding layer shielding crosslinked cable, prevent copper wire pair Insulation screen causes to damage.
4th, the aluminum-magnesium-silicon alloy wire of aldray armor is doubled than fine aluminium silk power resistance strength so that cable can be held By larger longitudinal pulling force, not only can anti-geological disaster, but also can prevent mouse from being destroyed to cable.
Through testing to cable, the results showed that cable property indices are excellent, meet design requirement, suitable for electricity 27.5 kilovolts of power supplys of single phase ac that gas train uses simultaneously serve contact net.Compared with traditional cable, structure novel, material elder generation Into comprehensive performance is superior, electric property and excellent physical properties, and waterproof, termite-resistant rodent-resistant integrated protection excellent effect use Securely and reliably, the service life increases by 2 times or so than traditional cable.Cable is suitble to the layings such as direct-burried, poling, crane span structure, and in humidity and has In the plague of rats, termite attack environment.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the structure diagram of the utility model;
Fig. 2 is process flow chart prepared by the utility model.
Specific embodiment
As shown in Figure 1, a kind of high ferro graphene semi-conductive screen novel cable, including conductor 1, three layers are used outside conductor 1 The mode of co-extrusion is provided with conductor shield 2, insulating layer 3 and insulation screen 4,
Conductor shield 2 and insulation screen 4 are graphene semiconductive shielding layer;
Special more tengential belt layers 5, metal screen layer, inner restrictive coating 8, metal are disposed with outside insulation screen 4 from the inside to the outside Armor 9 and external sheath layer 10;
Metal screen layer is made of the copper wires dredge winding layer 6 and copper strips lapping layer 7 being set to outside special more tengential belt layers 5, and copper wire is dredged 6 copper wire of winding layer is dredged opposite with the copper strips lapping direction of copper strips lapping layer 7 around direction;
Metal armor layers 9 are aldray armor.
Insulating layer 3 is 110KV grades of ultra-clean crosslinked polyetylene insulated layers.
Copper wires dredge winding layer 6 is dredged around 14~18 times that pitch is brass wire shielding outer diameter, and it is left-hand to dredge around direction.
The surface of copper wires dredge winding layer 6 is tightened by the wrapped copper strips lapping layer 7 of dextrad.
The tensile strength of the aluminum-magnesium-silicon alloy wire of aldray armor is not less than 325MPa.
External sheath layer 10 is environment protection, rat anti-termite agent high-density polyethylene outer sheath layer, can effectively prevent mouse and white Ant bites.
Inner restrictive coating 8 is pe sheath, can effectively play waterproof purpose.
As shown in Fig. 2, the preparation process of the utility model is as follows:
1st, conductor 1 manufactures
Conductor 1 is formed (purity >=99.97% of copper) by meeting naked annealed copper wire as defined in GB/T3956.In cable conductor Manufacturing process in, oxygen-free copper bar is manufactured by the up-drawing method production line of import first, is drawn by the import big drawing machine of continuous annealing Single line processed.Conductor structure is designed to 48 gangs of 2.56mm, selects HDK12+18+24/500 frame type stranding machines, tight using diamond coatings Molding is pressed in pressing mold layering, ensure that the close and stable structure of conductor, tightening factor 0.9, conductive surface is bright and clean, oil-free The single line of dirty, not damaged shielding and burr, the sharp edge of insulation, no protrusion or fracture.D.C. resistance after process during 20 DEG C of conductor Meet GB/T3956-2008 regulations.
2nd, crosslinking process is squeezed out
Conductor shield 2, insulating layer, insulation screen 4 use three-layer co-extruded, totally-enclosed chemical crosslinking technique.
The three-layer co-extruded production line of cross linked insulation of Qingdao technical machinery factory production is selected, wherein extruding conductor shielding is equipped with φ 65/25 extruder;It extrudes XLPE insulating layers and is equipped with 150/25 extruders of φ;Extruded insulation shielded layer is equipped with 90/25 extruders of φ.
2.1st, conductor shield 2
Conductor shield 2 uses graphene semi-conductive shielding material, and extruding semi-conductive layer should be uniformly coated on conductor, Surface is smooth, and without apparent twisted wire burr, no wedge angle, particle are burnt or abrasive trace.When removing conductor shielding, semiconductive Layer should not result in the phenomenon that card is stayed between conductor strand.
Conductor shielding resistivity is no more than 500 Europe rice.Conductor shielding nominal thickness is 0.8mm, and minimum thickness should not be small In 0.48mm.
2.2nd, insulating layer 3
Insulating layer 3 use 110KV grade ultra-clean crosslinked polyethylenes, insulation nominal thickness be 11.5mm, insulation thickness average value Nominal value should be not less than, any point minimum, which measures thickness, should be not less than 2.52mm, and maximum, which measures thickness, should be not more than 3.0mm.
2.3rd, insulation screen 4
Insulation screen 4 uses graphene semi-conductive shielding material, and insulation shielding is the crosslinking semi-conductive layer extruded, is partly led Electric layer is uniformly coated on insulating surface, and surface should be smooth, no wedge angle, and particle is burnt or abrasive trace.
Insulation shielding resistivity is no more than 200 Europe rice.Insulation shielding nominal thickness is 0.8mm, and minimum thickness should not be small In 0.48mm.
3rd, metal screen layer
Metallic shield is dredged using 400 type copper wires around machine, is that 0.86mm copper wires are dredged around copper wire is dredged around section with 64 outer diameters Away from 14~18 times for brass wire shielding outer diameter, it is left-hand to dredge around direction, and surface is tightened with the wrapped copper strips of dextrad, adjacent copper wire Mean gap no more than 4mm, any adjacent two interradicular space is not more than 8mm, and copper wire external application thickness is 0.1mm, between copper strips is Gap is wrapped, and maximal clearance is not more than 25% copper strips width.
4th, inner restrictive coating 8
Layer of polyethylene is extruded using 90 extruding machines of φ.Nominal thickness is the regulation of 2.0mm.Jacket thickness average value should not Less than nominal value, any point minimum thickness should be not less than the 80%-0.2mm of nominal value.Oversheath appearance shall be rounded up, smoothly, nothing Damage, section pore-free.
5th, it is aluminum-magnesium-silicon alloy wire armoured
Using the type armoring machine of 72 disks/500, tensile strength is selected not less than 325MPa aluminum-magnesium-silicon alloy wires, aldray 67 monofilament outer diameters of silk are 2.5mm, and mold aperture is 58mm, and pitch control is maintained at 8m/ in 580mm~690mm, booting linear speed min。
6th, external sheath layer 10
One layer of addition environment protection, rat anti-termite agent high density polyethylene (HDPE) is extruded using 150 extruding machines of φ.Sheath nominal thickness Regulation for 3.0mm.Jacket thickness average value should be not less than nominal value, and any point minimum thickness should be not less than nominal value 80%-0.2mm.Oversheath appearance shall be rounded up, is smooth, is not damaged, section pore-free, and the outside diameter of cable, which is surveyed, after extrusion is 64.5mm。
Extrusion die:Mold core aperture is φ 65mm, and die sleeve aperture is φ 73mm.
150 extruding machine turn-on temperatures of φ press table 1, and booting linear speed is maintained at 10m/min.
1 extrusion temperature unit of table:0C
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model It makes, the feature in embodiment and embodiment in the application in the absence of conflict, mutually can be combined arbitrarily.This practicality is new The protection domain of type should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim Equivalents are protection domain.Equivalent replacement i.e. within this range is improved, also the scope of protection of the utility model it It is interior.

Claims (6)

1. a kind of high ferro graphene semi-conductive screen novel cable, including conductor(1), conductor(1)It is outer using three-layer co-extruded side Formula is provided with conductor shield(2), insulating layer(3)And insulation screen(4), it is characterised in that:
Conductor shield(2)And insulation screen(4)For graphene semiconductive shielding layer;
Insulation screen(4)It is outer to be disposed with special more tengential belt layers from the inside to the outside(5), metal screen layer, inner restrictive coating(8), gold Belong to armor(9)And external sheath layer(10);
Metal screen layer is by being set to special more tengential belt layers(5)Outer copper wires dredge winding layer(6)And copper strips lapping layer(7)Composition, copper wire Dredge winding layer(6)Copper wire is dredged around direction and copper strips lapping layer(7)Copper strips lapping direction it is opposite;
Metal armor layers(9)For aldray armor.
2. high ferro graphene semi-conductive screen novel cable according to claim 1, it is characterised in that:Insulating layer(3)For 110KV grades of ultra-clean crosslinked polyetylene insulated layers.
3. high ferro graphene semi-conductive screen novel cable according to claim 1, it is characterised in that:Copper wires dredge winding layer (6)To dredge around pitch be 14~18 times of brass wire shielding outer diameter, it is left-hand to dredge around direction.
4. high ferro graphene semi-conductive screen novel cable according to claim 3, it is characterised in that:Copper wires dredge winding layer (6)Surface pass through the wrapped copper strips lapping layer of dextrad(7)It tightens.
5. high ferro graphene semi-conductive screen novel cable according to claim 1, it is characterised in that:Aldray armour The tensile strength for filling the aluminum-magnesium-silicon alloy wire of layer is not less than 325MPa.
6. high ferro graphene semi-conductive screen novel cable according to claim 1, it is characterised in that:External sheath layer(10) For environment protection, rat anti-termite agent high-density polyethylene outer sheath layer.
CN201721562624.8U 2017-11-21 2017-11-21 High ferro graphene semi-conductive screen novel cable Expired - Fee Related CN207602263U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721562624.8U CN207602263U (en) 2017-11-21 2017-11-21 High ferro graphene semi-conductive screen novel cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721562624.8U CN207602263U (en) 2017-11-21 2017-11-21 High ferro graphene semi-conductive screen novel cable

Publications (1)

Publication Number Publication Date
CN207602263U true CN207602263U (en) 2018-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721562624.8U Expired - Fee Related CN207602263U (en) 2017-11-21 2017-11-21 High ferro graphene semi-conductive screen novel cable

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024134122A1 (en) * 2022-12-22 2024-06-27 Acome Electrical shielded cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024134122A1 (en) * 2022-12-22 2024-06-27 Acome Electrical shielded cable
FR3144386A1 (en) * 2022-12-22 2024-06-28 Acome Electrical armored cable

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180710

Termination date: 20211121

CF01 Termination of patent right due to non-payment of annual fee