CN105336436A - High voltage transmission line having weak electromagnetic influence on buried pipelines and production equipment thereof - Google Patents
High voltage transmission line having weak electromagnetic influence on buried pipelines and production equipment thereof Download PDFInfo
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- CN105336436A CN105336436A CN201510798825.7A CN201510798825A CN105336436A CN 105336436 A CN105336436 A CN 105336436A CN 201510798825 A CN201510798825 A CN 201510798825A CN 105336436 A CN105336436 A CN 105336436A
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Abstract
The invention discloses a high voltage transmission line having weak electromagnetic influence on buried pipelines and production equipment thereof, belonging to the field of high voltage transmission lines. The high voltage transmission line having weak electromagnetic influence on buried pipelines comprises an insulating outer layer, wherein a plurality of inner cores are wrapped in the insulating outer layer and are formed by hinging a plurality of sub-cores; an inner surface of the insulating outer layer is covered by a metal shielded layer; the metal shielded layer is a ZnO/SiO2 nanofiber layer and is 150nm in thickness. The high voltage transmission line having weak electromagnetic influence on buried pipelines has the characteristic of superstrong tensile strength, torsion resistance, high mechanical stress resistance, waterproofness, flame retardance, high temperature resistance, chemical corrosion resistance, and the like, also has weak electromagnetic influence on pipelines and has the effects of reducing the contradictions between pipelines and transmission cables and eliminating the potential safety hazards.
Description
Technical field
The present invention relates to a kind of high voltage transmission line, particularly a kind of high voltage transmission line to the magnetic influence of buried pipeline light current and production equipment thereof.
Background technology
High-tension cable is a kind of cable for transmitting and distribute electric energy, be usually used in Urban Underground electrical network, the lead line in power station, the in-line power of industrial and mining enterprises and cross river, excessively extra large defeated high-tension cable under water, high-tension cable provides required supply of electric power for daily life, plays vital effect.Because the applied environment of high-tension cable is relatively severe, need to possess the features such as superpower stretching resistance, twisting resistance, anti-high mechanical stress, waterproof, fire-retardant, high temperature resistant, resist chemical.
Meanwhile, along with domestic ultra-high-tension power transmission line, the great development of pipe-line construction, interactional contradiction between buried pipeline and high voltage transmission line.Such as high voltage transmission line can produce electromagnetic induction to pipeline, makes pipeline charged, causes potential safety hazard.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, one is provided to possess the features such as superpower stretching resistance, twisting resistance, anti-high mechanical stress, waterproof, fire-retardant, high temperature resistant, resist chemical, simultaneously to the magnetic influence of pipeline light current, reduce the contradiction between pipeline and power transmission cable, the high voltage transmission line to the magnetic influence of buried pipeline light current eliminated safe hidden trouble and production equipment thereof.
The technical solution used in the present invention is as follows:
A kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, comprises insulating outer layer, parcel some inner cores in described insulating outer layer, and described inner core is linked by some root cores and forms; The inner surface of described insulating outer layer is coated with metal screen layer, and described metal screen layer is ZnO/SiO
2layers of nanofibers, the thickness of described metal screen layer is 150nm.
Owing to have employed technique scheme, link by sub-core the inner core formed and there is superpower stretching resistance, twisting resistance, anti-high mechanical stress; The electromagnetic energy absorption that high-voltage power transmission cable can produce by metal screen layer, thus mask electromagnetism, reduce power transmission cable to the electromagnetic effect of pipeline, reduce the contradiction between pipeline and power transmission cable, eliminate safe hidden trouble.
Of the present invention a kind of to the magnetic influence of buried pipeline light current high voltage transmission line, the cross section of described inner core is fan-shaped, and described fan-shaped central angle is 40 °, and radius is 2.1cm, and described three fan-shaped angles are the rounding of radius 0.2cm; The number of described inner core is 4, in 360 ° of annular array arrangements; The cross section of described sub-core is circular, and the diameter of described sub-core is 200nm.
Owing to have employed technique scheme, can ensure that the gap between sub-core is minimum, the combination between sub-core is tight, thus the stretching resistance of raising inner core, twisting resistance and anti-high mechanical stress.
A kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, is filled with insulation sealing between described inner core and inner core, and described insulation sealing comprises 11% dimethicone, 10% talcum powder, 31%TPR, 3% zinc stearate, 1% white carbon, 1% boric acid, 2% linseed oil, 5% erucyl amide, 13% swelling agent, 4% peroxidating phenyl-diformyl, 13% trimethylolpropane triacrylate, 6% decabromodiphenyl oxide.
Owing to have employed technique scheme, the cross section of inner core is fan-shaped, may produce the phenomenon of point discharge in edge, and the insulation sealing of filling between inner core and inner core effectively can avoid the generation of this phenomenon, this insulation sealing has good insulating properties, anti-flammability and heat-resisting quantity; Swelling agent can make sealing inside produce a large amount of cavernous structures simultaneously, makes the lighter weight of sealing own.
A kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, described sub-core is the CuO/Cu of core-intermediate layer-shell three-decker
2snO
4/ SnO
2coaxial cable.Sub-core adopts the coaxial cable of this structure, and transmission performance is good, and stable in properties, not only the adaptive surface of working temperature is extensive, and has breakdown characteristics, substantially increases the fail safe of high voltage power transmission.
A kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, described sub-core is prepared by following step:
Step one: by purity be 99.97% Cu and purity be 99.97% Sn mix according to mass ratio 12.5:1, being ground to fineness is 325 orders, Homogeneous phase mixing;
Step 2: the metal powder mixed evenly is divided and is sprinkling upon in quartz boat, quartz boat is placed in the program control high temperature furnace earthenware of atmosphere heat treatment, earthenware is evacuated to 1Pa, passes into the argon gas that flow is 80sccm, the temperature be warming up in high temperature furnace reaches 900 DEG C;
Step 3: keep the temperature in stove to be 900 DEG C, pass into the oxygen that flow is 40sccm, reaction 2h;
Step 4: naturally cool to room temperature under vacuum condition, obtains the CuO/Cu of core-intermediate layer-shell three-decker
2snO
4/ SnO
2coaxial cable.
A kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, described insulating outer layer comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral.
Owing to have employed technique scheme, this insulating outer layer has the features such as waterproof, fire-retardant, high temperature resistant, resist chemical, and lighter weight, be good high voltage transmission line insulating outer layer.
The production equipment of a kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, comprises base and is located at the some wire twisters on base, and the inner horizontal of described wire twister is laterally provided with some wire holes; One side of described wire twister is provided with capstan winch, and described capstan winch is rounded, can be that axle point moves in a circle with the center of circle, described capstan winch is evenly equipped with circular hole; The number of described wire twister is 4, is respectively wire twister one, wire twister two, wire twister three and wire twister four; The outside of described wire twister one is provided with shell one; Described wire twister two upper end is provided with spray equipment, and the outside of described wire twister two and spray equipment is provided with shell two; Described wire twister three upper end is provided with electric field generation device, and the outside of described wire twister three and electric field generation device is provided with shell three; The cross section of the wire hole of described wire twister one is fan-shaped, described fan-shaped central angle is 40 °, and radius is 2.1cm, and the capstan winch rotating speed of described wire twister one is 300r/min, described shell one inside is provided with pressure control device, can add shell one internal pressure and maintain 2000kPa; The wire hole diameter of described wire twister two is 200nm, the capstan winch rotating speed of described wire twister two is 150r/min, described wire twister two upper end is provided with spray equipment, insulation sealing is sprayed on electric wire according to 23mg/s by described spray equipment, the outside of described wire twister two is provided with shell two, be provided with thermostat in described shell two, can maintain thermally insulating housing two internal temperature is 80 DEG C; Described wire twister three is provided with 4 wire holes, and the capstan winch rotating speed of described wire twister three is 3r/min; The offside of described wire twister three capstan winch is provided with solution injection apparatus; Be provided with control of temperature and humidity device in described shell three, the temperature of shell three inside can be maintained 27 DEG C, humidity maintains 43.6%; It is 11.4kV DC electric field that described field generator can produce voltage, and the distance of the wire hole of described field generator and wire twister three is 12cm; Described wire twister four is provided with 1 wire hole, and the capstan winch rotating speed of described wire twister four is 3r/min, is provided with the program control high temperature furnace of atmosphere heat treatment in described wire twister four.
The production equipment of a kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, the solution that described solution injection apparatus sprays comprises 12.1% polyvinylpyrrolidone, 5.2% methyl alcohol, 1.7% tetraethoxysilane, 60.4%DMF, 12.1% glycerol and 8.5% zinc nitrate.
The production equipment of a kind of high voltage transmission line to the magnetic influence of buried pipeline light current of the present invention, it is 1 DEG C/min that the program control high temperature furnace of described atmosphere heat treatment can control heating rate, is warming up to 900 DEG C, keeps 900 DEG C of constant temperature 10h.
Owing to have employed technique scheme, layer of ZnO/SiO can be prepared on power transmission line surface by wire twister four
2nanofiber screen, the shield effectiveness of this fiber is good.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the combination between sub-core is tight, thus the stretching resistance of raising inner core, twisting resistance and anti-high mechanical stress; Transmission performance is good, and stable in properties, not only the adaptive surface of working temperature is extensive, and has breakdown characteristics.
2, have good insulating properties, anti-flammability and heat-resisting quantity, shield effectiveness is good, has the features such as waterproof, fire-retardant, high temperature resistant, resist chemical, substantially increases the fail safe of high voltage power transmission.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the high voltage transmission line to the magnetic influence of buried pipeline light current
Fig. 2 is a kind of structural representation of high voltage transmission line production equipment.
Mark in figure: 1 for wire twister one, 2 be wire twister two, 3 is wire twister three, and 4 is wire twister four, and 5 is wire hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make the object of invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, a kind of high voltage transmission line to the magnetic influence of buried pipeline light current, comprises insulating outer layer, parcel some inner cores in described insulating outer layer, and described inner core is linked by some root cores and forms; The inner surface of described insulating outer layer is coated with metal screen layer, and described metal screen layer is ZnO/SiO
2layers of nanofibers, the thickness of described metal screen layer is 150nm.
The cross section of inner core is fan-shaped, and described fan-shaped central angle is 40 °, and radius is 2.1cm, and three fan-shaped angles are the rounding of radius 0.2cm; The number of inner core is 4, in 360 ° of annular array arrangements; The cross section of sub-core is circular, and the diameter of sub-core is 200nm.
Be filled with insulation sealing between inner core and inner core, insulation sealing comprises 11% dimethicone, 10% talcum powder, 31%TPR, 3% zinc stearate, 1% white carbon, 1% boric acid, 2% linseed oil, 5% erucyl amide, 13% swelling agent, 4% peroxidating phenyl-diformyl, 13% trimethylolpropane triacrylate, 6% decabromodiphenyl oxide.
Sub-core is the CuO/Cu of core-intermediate layer-shell three-decker
2snO
4/ SnO
2coaxial cable.
Insulating outer layer comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, and 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral.
Embodiment 2
Sub-core is prepared by following step:
Step one: by purity be 99.97% Cu and purity be 99.97% Sn mix according to mass ratio 12.5:1, being ground to fineness is 325 orders, Homogeneous phase mixing;
Step 2: the metal powder mixed evenly is divided and is sprinkling upon in quartz boat, quartz boat is placed in the program control high temperature furnace earthenware of atmosphere heat treatment, earthenware is evacuated to 1Pa, passes into the argon gas that flow is 80sccm, the temperature be warming up in high temperature furnace reaches 900 DEG C;
Step 3: keep the temperature in stove to be 900 DEG C, pass into the oxygen that flow is 40sccm, reaction 2h;
Step 4: naturally cool to room temperature under vacuum condition, obtains the CuO/Cu of core-intermediate layer-shell three-decker
2snO
4/ SnO
2coaxial cable.
Embodiment 3
As shown in Figure 2, a kind of high voltage transmission line production equipment, comprises base and is located at 4 wire twisters on base, be respectively wire twister 1, wire twister 22, and the inner horizontal of wire twister 33 and wire twister 44 wire twister is laterally provided with some wire holes 5; One side of wire twister is provided with capstan winch, and capstan winch is rounded, can be that axle point moves in a circle with the center of circle, capstan winch is evenly equipped with circular hole.
The outside of wire twister 1 is provided with shell one; Wire twister 22 upper end is provided with spray equipment, and the outside of wire twister 22 and spray equipment is provided with shell two; Wire twister 33 upper end is provided with electric field generation device, and the outside of wire twister 33 and electric field generation device is provided with shell three.
The cross section of the wire hole of wire twister 1 is fan-shaped, and fan-shaped central angle is 40 °, and radius is 2.1cm, and the capstan winch rotating speed of wire twister 1 is 300r/min, and shell one inside is provided with pressure control device, can add shell one internal pressure and maintain 2000kPa.Sub-core is put into wire twister 1, and through the rotation of capstan winch, sub-core being linked into cross section is 40 °, central angle, radius 2.1cm, and three angles are the fan-shaped inner core of radius 0.2cm rounding.
The wire hole diameter of wire twister 22 is 200nm, the capstan winch rotating speed of wire twister 22 is 150r/min, wire twister 22 upper end is provided with spray equipment, insulation sealing is sprayed on electric wire according to 23mg/s by spray equipment, the outside of wire twister 22 is provided with shell two, be provided with thermostat in shell two, can maintain thermally insulating housing two internal temperature is 80 DEG C.Insulation sealing comprises 11% dimethicone, 10% talcum powder, 31%TPR, 3% zinc stearate, 1% white carbon, 1% boric acid, 2% linseed oil, 5% erucyl amide, 13% swelling agent, 4% peroxidating phenyl-diformyl, 13% trimethylolpropane triacrylate, 6% decabromodiphenyl oxide.Inner core is through wire twister two, and surface spraying has insulation sealing.
Wire twister 33 is provided with 4 wire holes 5, and the capstan winch rotating speed of wire twister 34 is 3r/min; The offside of wire twister 33 capstan winch is provided with solution injection apparatus, solution injection apparatus according to 12mg/s by solution spraying on electric wire; Be provided with control of temperature and humidity device in shell three, the temperature of shell three inside can be maintained 27 DEG C, humidity maintains 43.6%; It is 11.4kV DC electric field that field generator can produce voltage, and the distance of the wire hole of field generator and wire twister 33 is 12cm.The solution that solution injection apparatus sprays comprises 12.1% polyvinylpyrrolidone, 5.2% methyl alcohol, 1.7% tetraethoxysilane, 60.4%DMF, 12.1% glycerol and 8.5% zinc nitrate.
Wire twister 44 is provided with 1 wire hole 5, and the capstan winch rotating speed of wire twister 44 is 3r/min, is provided with the program control high temperature furnace of atmosphere heat treatment in wire twister 44.It is 1 DEG C/min that the program control high temperature furnace of atmosphere heat treatment can control heating rate, is warming up to 900 DEG C, keeps 900 DEG C of constant temperature 10h.Pipeline is put into wire twister four, it is 1 DEG C/min that the program control high temperature furnace of atmosphere heat treatment controls heating rate, is warming up to 900 DEG C, keeps 900 DEG C of constant temperature 10h, be cooled to room temperature under natural conditions, obtains on pipeline surface the ZnO/SiO that a layer thickness is 150nm
2layers of nanofibers.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. to a high voltage transmission line for buried pipeline light current magnetic influence, it is characterized in that: comprise insulating outer layer, parcel some inner cores in described insulating outer layer, described inner core is linked by some root cores and forms; The inner surface of described insulating outer layer is coated with metal screen layer, and described metal screen layer is ZnO/SiO
2layers of nanofibers, the thickness of described metal screen layer is 150nm.
2. as claimed in claim 1 a kind of to the magnetic influence of buried pipeline light current high voltage transmission line, it is characterized in that: the cross section of described inner core is fan-shaped, described fan-shaped central angle is 40 °, and radius is 2.1cm, and described three fan-shaped angles are the rounding of radius 0.2cm; The number of described inner core is 4, in 360 ° of annular array arrangements; The cross section of described sub-core is circular, and the diameter of described sub-core is 200nm.
3. a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as claimed in claim 1 or 2, it is characterized in that: be filled with insulation sealing between described inner core and inner core, described insulation sealing comprises 11% dimethicone, 10% talcum powder, 31%TPR, 3% zinc stearate, 1% white carbon, 1% boric acid, 2% linseed oil, 5% erucyl amide, 13% swelling agent, 4% peroxidating phenyl-diformyl, 13% trimethylolpropane triacrylate, 6% decabromodiphenyl oxide.
4. a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as claimed in claim 3, is characterized in that: described sub-core is the CuO/Cu of core-intermediate layer-shell three-decker
2snO
4/ SnO
2coaxial cable.
5. a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as claimed in claim 4, it is characterized in that, described sub-core is prepared by following step:
Step one: by purity be 99.97% Cu and purity be 99.97% Sn mix according to mass ratio 12.5:1, being ground to fineness is 325 orders, Homogeneous phase mixing;
Step 2: the metal powder mixed evenly is divided and is sprinkling upon in quartz boat, quartz boat is placed in the program control high temperature furnace earthenware of atmosphere heat treatment, earthenware is evacuated to 1Pa, passes into the argon gas that flow is 80sccm, the temperature be warming up in high temperature furnace reaches 900 DEG C;
Step 3: keep the temperature in stove to be 900 DEG C, pass into the oxygen that flow is 40sccm, reaction 2h;
Step 4: naturally cool to room temperature under vacuum condition, obtains the CuO/Cu of core-intermediate layer-shell three-decker
2snO
4/ SnO
2coaxial cable.
6. a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as described in claim 4 or 5, it is characterized in that: described insulating outer layer comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral.
7. the production equipment of a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as claimed in claim 6, is characterized in that: comprise base and be located at the some wire twisters on base, and the inner horizontal of described wire twister is laterally provided with some wire holes (5); One side of described wire twister is provided with capstan winch, and described capstan winch is rounded, can be that axle point moves in a circle with the center of circle, described capstan winch is evenly equipped with circular hole; The number of described wire twister is 4, is respectively wire twister one (1), wire twister two (2), wire twister three (3) and wire twister four (4); The outside of described wire twister one (1) is provided with shell one; Described wire twister two (2) upper end is provided with spray equipment, and the outside of described wire twister two (2) and spray equipment is provided with shell two; Described wire twister three (3) upper end is provided with electric field generation device, and the outside of described wire twister three (3) and electric field generation device is provided with shell three; The cross section of the wire hole of described wire twister one (1) is fan-shaped, described fan-shaped central angle is 40 °, and radius is 2.1cm, and the capstan winch rotating speed of described wire twister one (1) is 300r/min, described shell one inside is provided with pressure control device, can add shell one internal pressure and maintain 2000kPa; The wire hole diameter of described wire twister two (2) is 200nm, the capstan winch rotating speed of described wire twister two (2) is 150r/min, described wire twister two (2) upper end is provided with spray equipment, insulation sealing is sprayed on electric wire according to 23mg/s by described spray equipment, the outside of described wire twister two (2) is provided with shell two, be provided with thermostat in described shell two, can maintain thermally insulating housing two internal temperature is 80 DEG C; Described wire twister three (3) is provided with 4 wire holes (5), and the capstan winch rotating speed of described wire twister three (4) is 3r/min; The offside of described wire twister three (3) capstan winch is provided with solution injection apparatus; Be provided with control of temperature and humidity device in described shell three, the temperature of shell three inside can be maintained 27 DEG C, humidity maintains 43.6%; It is 11.4kV DC electric field that described field generator can produce voltage, and the distance of the wire hole of described field generator and wire twister three (3) is 12cm; Described wire twister four (4) is provided with 1 wire hole (5), and the capstan winch rotating speed of described wire twister four (4) is 3r/min, is provided with the program control high temperature furnace of atmosphere heat treatment in described wire twister four (4).
8. the production equipment of a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as claimed in claim 7, it is characterized in that: the solution that described solution injection apparatus sprays comprises 12.1% polyvinylpyrrolidone, 5.2% methyl alcohol, 1.7% tetraethoxysilane, 60.4%DMF, 12.1% glycerol and 8.5% zinc nitrate.
9. the production equipment of a kind of high voltage transmission line to the magnetic influence of buried pipeline light current as claimed in claim 7 or 8, is characterized in that: it is 1 DEG C/min that the program control high temperature furnace of described atmosphere heat treatment can control heating rate, is warming up to 900 DEG C, keeps 900 DEG C of constant temperature 10h.
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Application publication date: 20160217 |