CN102956319A - Inner-parallel high pressure power transmission wire capable of automatically removing coated ice by auxiliary heating - Google Patents
Inner-parallel high pressure power transmission wire capable of automatically removing coated ice by auxiliary heating Download PDFInfo
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- CN102956319A CN102956319A CN2012104091797A CN201210409179A CN102956319A CN 102956319 A CN102956319 A CN 102956319A CN 2012104091797 A CN2012104091797 A CN 2012104091797A CN 201210409179 A CN201210409179 A CN 201210409179A CN 102956319 A CN102956319 A CN 102956319A
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Abstract
The invention relates to an inner-parallel high pressure power transmission wire capable of automatically removing coated ice by auxiliary heating. The inner-parallel power transmission wire provided by the invention is characterized in that auxiliary heating wires are added between steel cores and aluminum twisted wires on the basis of the common high pressure power transmission wire; two layers of graded insulation sheaths and conducting rings are added on the surface of the steel core; a conducting ring is connected in parallel between the two sections of each layer of sheaths; the auxiliary heating wires are clamped between the two layers of sheath and the inner and outer conducting rings; the aluminum twisted wires are wound on the exterior of the outer layer sheaths and the outer conducting rings so as to become a whole; and the inner and outer conducting rings and the auxiliary heating wires form a subsection parallel circuit in the interior through two layers of graded insulation sheaths. The aluminum twisted wires are used for delivering a high-voltage power supply at original times, a low temperature ice rain weather possibly cause ice coating of the high pressure power transmission wire, or the ice covers on the high pressure power transmission wire, thus when automatic removal of coated ice is needed, an auxiliary power source is loaded on the steel core under a power-on condition, the opposite voltage is generated among the aluminum twisted wires, and the auxiliary heating wires can generate heat energy when current passes; and the temperatures of the steel cores and the aluminum twisted wires rise, thereby preventing or automatically removing the coated ice purpose.
Description
Technical field
The present invention relates to a kind of high voltage electricity transmission conductive wire and lightning conducter thereof, the auxiliary heating that relates in particular to a kind of inner sectional parallel removes the high voltage electricity transmission conductive wire of icing automatically.
Background technology
In recent years, for ultra-high-tension power transmission line suffer at low-temperature frozen rainy day gas that serious icing causes that electric wire is waved, the phenomenon such as broken string and shaft tower collapse, some scientific research institutions, high institutes and electric power enterprise have proposed various lines except the icing method both at home and abroad.Be summed up and mainly contain three major types.
1, machinery is except the icing method.Be with robot back and forth operation on ultra-high-tension power transmission line, that is that all right is ripe because of its technology, and ultra-high-tension power transmission line needs to have a power failure during operation, and the loss that causes is larger.Therefore, this method is not also applied in practice, and prospect also allows of no optimist;
2, naturally except icing.Relying on the rising of weather temperature automatically except icing, is a kind of de-icing method of passive type, also is the current main de-icing method that adopts;
3, thermal ice-melting method.There are again two kinds of de-icing methods the most representative.
(1) icing transmission line high-frequency and high-voltage is except the icing method.By imposing about 33KV, the excitation of 100KHz, utilize icing under high-frequency electric field dielectric loss and the Joule heat that causes of high frequency state lower wire kelvin effect to the icing power transmission line comprehensive effect carry out ice-melt.But this method energy consumption is large, control is comparatively complicated, application cost is higher.Although on probation at few places, inconvenience is popularized in an all-round way.
(2) auxiliary heating ice-melting method.Between steel core and aluminium hinge line, increase an insulating barrier, or in the middle of steel core, increase the auxiliary heating resistance of a tape insulation layer.When transmitting electricity at ordinary times, only aluminium hinge lineman does.When needing except icing, give steel core or auxiliary heating resistance for electric heating, steel core and aluminium hinge line temperature is raise, reach the purpose except icing.But also there is technological deficiency in this auxiliary heating except the icing mode.The heating efficiency that is steel core is low, needs larger electric current, and long-time energising, if control was lost efficacy, steel core (particularly joint area) heating temp is too high, or after the energising of auxiliary heating resistance, resistance temperature is difficult to control, and excess Temperature easily destroys insulating sleeve, steel core and aluminium hinge line.Therefore, the scope of application is restricted, and also can't promote the use of.
Through retrieval, not yet find similar high voltage electricity transmission conductive wire of the present invention.
Summary of the invention
Purpose of the present invention just is to provide a kind of internal parallel auxiliary heating automatically except the icing high voltage electricity transmission conductive wire.Between the steel core and aluminium hinge line of common high voltage electricity transmission conductive wire, increased the auxiliary heating wire, and increased two-layer segmentation insulating sleeve and inside and outside conducting ring.By two-layer segmentation insulating sleeve, inside and outside conducting ring and auxiliary heating wire have formed the sectional parallel circuit in inside.Aluminium cuts with scissors line conveying high-pressure power supply at ordinary times, such as low-temperature frozen rainy day gas, may cause the high voltage electricity transmission conductive wire icing, or when icing has needed automatically except icing, in the situation that do not have a power failure, accessory power supply is loaded on the steel core, and produce relative voltage between the aluminium hinge line, the auxiliary heating wire has electric current through just producing heat energy, and steel core and aluminium hinge line temperature is raise, and reaches the purpose that prevents or automatically remove icing.
The object of the present invention is achieved like this;
The present invention is on the basis of common high voltage electricity transmission conductive wire, between steel core and aluminium hinge line, increased the auxiliary heating wire, and segmentation has increased two-layer insulating sleeve and inside and outside conducting ring; Internal layer sheath and interior conducting ring fragmented packets are rolled on the steel core, and conducting ring in the parallel connection contacts with the auxiliary heating wire with steel core respectively between two sections internal layer sheaths; The auxiliary heating wire kinks in the outside of internal layer sheath and interior conducting ring; Outer protective sleeve and outer conducting ring fragmented packets are rolled in the outside of auxiliary heating wire, and conducting ring in the parallel connection between two sections outer protective sleeves contacts with auxiliary heating wire and aluminium hinge line respectively; Aluminium hinge line hinge twines in the outside of outer protective sleeve and outer conducting ring, becomes one, and inside has formed the sectional parallel circuit; Aluminium cuts with scissors line conveying high-pressure power supply at ordinary times, such as low-temperature frozen rainy day gas, may cause the high voltage electricity transmission conductive wire icing, or when icing has needed automatically except icing, in the situation that do not have a power failure, accessory power supply is loaded on the steel core, and produce relative voltage between the aluminium hinge line, the auxiliary heating wire has electric current through just producing heat energy, and steel core and aluminium hinge line temperature is raise, and reaches the purpose that prevents or automatically remove icing.
Specifically, the present invention includes steel core, internal layer sheath, auxiliary heating wire, outer protective sleeve, aluminium hinge line, interior conducting ring and seven parts of outer conducting ring forms:
1, steel core
Steel core is twined by many steel wire hinges and forms; Be mainly used to satisfy the mechanical resistance tensile strength of high voltage electricity transmission conductive wire.
2, internal layer sheath
The internal layer sheath is made by the rubber combined insulating material of high thermal conductive silicon; Fragmented packets is rolled in the outside of steel core, is mainly used to the graded insulation layer as steel core, makes itself and auxiliary heating wire graded insulation.
3, auxiliary heating wire
The auxiliary heating wire is kinked by the many wires that can produce low temperature heat energy and makes; Kink in the outside of internal layer sheath and interior conducting ring, be clipped between two-layer sheath and the inside and outside conducting ring, can produce low temperature heat energy after the energising, be mainly used to the high voltage electricity transmission conductive wire auxiliary heating.
4, outer protective sleeve
Outer protective sleeve is made by the rubber combined insulating material of high thermal conductive silicon; Fragmented packets is rolled in the outside of auxiliary heating wire, is mainly used to the graded insulation layer as the auxiliary heating wire, makes itself and aluminium cut with scissors the line graded insulation.
5, aluminium hinge line
Aluminium hinge line is mutually cut with scissors to twine by many aluminum steels and forms; Hinge twines the outside in outer protective sleeve, becomes one, and is mainly used to satisfy the high voltage and current of carrying different capacity.
6, interior conducting ring
Interior conducting ring is made by aluminum family wire material; Be surrounded on the outside of steel core, be parallel between two sections internal layer sheaths, contact with the auxiliary heating wire with steel core respectively, be mainly used in making auxiliary heating wire and steel core to form sectional parallel, and the electric current between conduction auxiliary heating wire and the steel core.
7, outer conducting ring
Outer conducting ring is made by aluminum family wire material; Be surrounded on the outside of auxiliary heating wire, be parallel between two sections outer protective sleeves, contact with aluminium hinge line with the auxiliary heating wire respectively, be mainly used in making auxiliary heating wire and aluminium hinge line to form sectional parallel, the electric current between conduction auxiliary heating wire and the aluminium hinge line.
Operation principle of the present invention is as follows:
The present invention is that by two-layer segmentation insulating sleeve, inside and outside conducting ring and auxiliary heating wire have formed the sectional parallel circuit between steel core and aluminium hinge; Aluminium cuts with scissors line conveying high-pressure power supply at ordinary times, when running into low-temperature frozen rainy day gas, may cause the high voltage electricity transmission conductive wire icing, or when icing has needed automatically except icing, accessory power supply is loaded on the steel core, and produce relative voltage between the aluminium hinge line, because there are a plurality of sectional parallel circuit in inside, electric current is from aluminium hinge line end, through outer conducting ring, the auxiliary heating wire, interior conducting ring, steel core, return aluminium hinge line end, formed a plurality of sectional parallels loop, the auxiliary heating wire has electric current through just producing heat energy, steel core and aluminium hinge line temperature is raise, reach the purpose that prevents or automatically remove icing.
Key technology innovative point of the present invention is as follows:
1, the present invention is on the basis of common high voltage electricity transmission conductive wire, has increased the auxiliary heating wire between steel core and aluminium hinge line, and has increased two-layer segmentation insulating sleeve and inside and outside conducting ring; The auxiliary heating wire is divided into countless segments by two-layer segmentation insulating sleeve and inside and outside conducting ring, and is connected in parallel between steel core and the aluminium hinge line, has formed the sectional parallel circuit; As long as between steel core and aluminium hinge line, have certain voltage, just have electric current through the auxiliary heating wire and produce heat energy, greatly reduce the electric pressure of auxiliary heating power supply, improve the heating efficiency of auxiliary heating wire, createed the internal parallel auxiliary heating automatically except the icing high voltage electricity transmission conductive wire.Solved common ultra-high-tension power transmission line length apart from auxiliary heating automatically when the icing, the technical barrier that required accessory power supply overtension, electric current is excessive, energy consumption is high, difficult control, the class of insulation are too high, can't apply.
2, the present invention is inner double hyer insulation sectional parallel structure with its structural design.Between the steel core and aluminium hinge line of common high voltage electricity transmission conductive wire, increased the auxiliary heating wire, and segmentation two-layer high heat conductive insulating sheath and inside and outside conducting ring have been increased; Internal layer sheath and interior conducting ring fragmented packets are rolled on the steel core, and conducting ring in the parallel connection contacts with the auxiliary heating wire with steel core respectively between two sections internal layer sheaths; The auxiliary heating wire is wound in the outside of internal layer sheath and interior conducting ring; Outer protective sleeve and outer conducting ring fragmented packets are rolled in the outside of auxiliary heating wire, and conducting ring in the parallel connection between two sections outer protective sleeves contacts with auxiliary heating wire and aluminium hinge line respectively; Aluminium hinge line hinge is entangled in outer outside of leading sheath and outer conducting ring, becomes one, and makes the auxiliary heating wire form the sectional parallel circuit between steel core and aluminium hinge line.This structure also can prevent high heat conductive insulating sheath and auxiliary heating wire in transportation, install in by accidental damage.
3, the selected auxiliary heating wire of the present invention, when diameter was 0.5 millimeter, its resistance value R was 13-30k Ω/m, and in rated power, adstante febre self surface temperature T is 40-100 ℃, the maximum temperature of self-heating is 180 ℃ when surpassing rated power.Reason is: the maximum operating temperature of high heat conductive insulating sheath is 200 ℃; The fusing point of steel core is 1550 ℃, and the fusing point of aluminium hinge line is 660 ℃; The maximum operating temperature of steel-core-aluminium hinge line is 200 ℃, in the situation that 180 ℃, its tensile strength 1350Mpa is than the also slightly enhancing of 1300Mpa of normal temperature.
The advantage that the present invention has and good effect:
1, the invention solves the technical barrier of a key.Solved common ultra-high-tension power transmission line length apart from auxiliary heating automatically when the icing, required accessory power supply relative voltage is high, electric current large, difficult control, energy consumption is high, the class of insulation is high, the technical barrier that can't apply.This high voltage electricity transmission conductive wire indoor design is two-layer graded insulation parallel-connection structure, greatly reduces the electric pressure of auxiliary heating power supply, has improved the heating efficiency of auxiliary heating wire.Carry out auxiliary heating with relatively low voltage and less electric current, just can prevent or automatically except the icing on the ultra-high-tension power transmission line.And common ultra-high-tension power transmission line takes the high-frequency and high-voltage auxiliary heating when the icing, and invar core heating efficiency is low, and used overtension, electric current are excessive, if control was lost efficacy, the steel core heating temp is too high, easily destroys insulating sleeve and aluminium hinge line, causes auxiliary heating to remove the icing failure; Or invar core excess Temperature, self is softening, and the mechanical resistance tensile strength reduces and is broken, and produces serious accident; Or when making the auxiliary heating wire with resistance, if the control of resistance heating temperature was lost efficacy, excess Temperature easily destroys insulating sleeve, steel core and aluminium hinge line etc.
2, structure is unique, technique is simple.The present invention is inner double-deck graded insulation parallel-connection structure with its structural design, and structure is unique, but its production technology is identical with common high voltage electricity transmission conductive wire major part, is easy to processing.
3, safe and reliable, applicability is strong.With the design of auxiliary heating wire and two-layer segmentation edge sheath and between steel core cuts with scissors with aluminium hinge line, become one.Can prevent that graded insulation sheath and auxiliary heating wire from being decreased by unexpected in transportation, installation.Safe and reliable, applicability is strong.
4, cost lower, be convenient to promote.Auxiliary heating wire and two-layer segmentation high heat conductive insulating sheath, the two is home made article, and cost is lower.If consider that this high voltage electricity transmission conductive wire can prevent or automatically remove icing, there has not been the icing load on the circuit, the mechanical resistance tensile strength of wire itself requires and safety factor all can significantly reduce, the wire diameter of steel core can reduce, own wt can alleviate, and the weight capacity of the supporting members such as shaft tower is required also can reduce.This measure can be saved the investment of whole transmission line, and economic benefit and social benefit are huge, has comparatively wide commercial promise.
Description of drawings
Fig. 1 is section of structure of the present invention;
Fig. 2 is fundamental diagram of the present invention;
Wherein:
The 1-steel core;
2-internal layer sheath;
3-auxiliary heating wire;
The 4-outer protective sleeve;
5-aluminium hinge line;
Conducting ring in the 6-;
The outer conducting ring of 7-;
Embodiment
One, overall
Such as Fig. 1, the present invention includes steel core (1), internal layer sheath (2), auxiliary heating wire (3), outer protective sleeve (4), aluminium hinge line (5), interior conducting ring (6) and outer conducting ring (7).
Steel core (1) is made sheath with internal layer sheath (2) and interior conducting ring (6), and the two segmentation is wrapped in steel core (1); Conducting ring (6) in parallel between two sections internal layer sheaths (2) contacts with auxiliary heating wire (3) with steel core (1) respectively; Auxiliary heating wire (3) is wound in the outside of internal layer sheath (2) and interior conducting ring (6); Outer protective sleeve (4) and outer conducting ring (7) fragmented packets are rolled in the outside of auxiliary heating wire (3), inner pivot ring in parallel (7) between two sections outer protective sleeves (4) contacts with aluminium hinge line (5) with auxiliary heating wire (3) respectively; Aluminium hinge line (5) hinge is entangled in outer outside of leading sheath (4) and outer conducting ring (7), becomes one.
Two, function parts
1, steel core (1) is identical with common high voltage electricity transmission conductive wire function, can many steel cores be cut with scissors tangle up mutually according to different demands, is mainly used to satisfy the mechanical resistance tensile strength of high voltage electricity transmission conductive wire.
2, internal layer sheath (2) is made by the rubber combined insulating material of high thermal conductive silicon, and fragmented packets is rolled in the outside of steel core (1), is mainly used in the graded insulation layer to steel core (1).Existing preferably thermal conduction characteristic, heat-resistant quality have again splendid electric insulation characteristic.
3, auxiliary heating wire (3) is made by the heating-wire that can produce low temperature heat energy and have certain resistance value to require, can be according to the needs of caloric value, many heating-wires are kinked in the outside of internal layer sheath and interior conducting ring, be mainly used to remove icing to steel core and aluminium hinge line auxiliary heating.
4, outer protective sleeve (4) is made by the rubber combined insulating material of high thermal conductive silicon, and fragmented packets is rolled in the outside of auxiliary heating wire (3), is mainly used in the graded insulation layer to auxiliary heating wire (3).
5, aluminium hinge line (5) is identical with common high voltage electricity transmission conductive wire function, can be according to different demands, and will many aluminum steels mutually cut with scissors and twine in the steel core outside, become one, be mainly used to the current/voltage of satisfied conveying different capacity.
6, interior conducting ring (6) is made by common aluminum family wire material, be surrounded on the outside of steel core (1), be parallel between two sections internal layer sheaths (2), contact with auxiliary heating wire (3) with steel core (1) respectively, be mainly used in making auxiliary heating wire (3) and steel core (1) segmentation to form parallel connection.
7, outer conducting ring (7) is made by aluminum family wire material, be surrounded on the outside of auxiliary heating wire (3), be parallel between two sections outer protective sleeves (4), respectively with auxiliary heating wire (3)) contact with aluminium hinge line (5), be mainly used in making the segmentation of auxiliary heating wire (3) and aluminium hinge line (5) to form parallel connection.
Claims (5)
1. an internal parallel auxiliary heating removes the icing high voltage electricity transmission conductive wire automatically,
It is characterized in that:
Steel core (1), internal layer sheath (2), auxiliary heating wire (3), outer protective sleeve (4), aluminium hinge line (5), interior conducting ring (6) and outer conducting ring (7) cut with scissors mutually tangle up, become one.
2. a kind of internal parallel auxiliary heating as claimed in claim 1 removes the icing high voltage electricity transmission conductive wire automatically, wherein said a kind of auxiliary heating wire (3),
It is characterized in that:
When the auxiliary heating diameter of wire was 0.5 millimeter, its resistance value R was 13-30k Ω/m, and in rated power, its adstante febre self surface temperature T is 40-100 ℃, and the maximum temperature of self-heating is no more than 180 ℃ when surpassing rated power.
3. except the icing high voltage electricity transmission conductive wire, wherein said internal layer sheath (2) and outer protective sleeve (4) are the rubber combined insulating material of high thermal conductive silicon to a kind of internal parallel auxiliary heating as claimed in claim 1 automatically,
Its characteristic is:
The existing preferably thermal conduction characteristic of the rubber combined insulating material of this high thermal conductive silicon, heat-resistant quality have again splendid insulation characterisitic, and main technical characteristics is as follows:
Table 1.
4. except the icing high voltage electricity transmission conductive wire, wherein said internal layer conducting ring (6) and outer conducting ring (7) are common aluminum family wire material to a kind of internal parallel auxiliary heating as claimed in claim 1 automatically,
Its characteristic is:
Electric conductivity with the used aluminum material of common high voltage electricity transmission conductive wire aluminium hinge line.
5. a kind of internal parallel auxiliary heating as claimed in claim 1 is automatically except the icing high voltage electricity transmission conductive wire, and wherein said internal parallel auxiliary heating is inner double-deck graded insulation parallel-connection structure except the structural design of icing high voltage electricity transmission conductive wire automatically,
Its characteristic is:
Internal layer sheath (2) and interior conducting ring (6) fragmented packets are rolled on the steel core (1); Conducting ring (6) in parallel between two sections internal layer sheaths (2) contacts with auxiliary heating wire (3) with steel core (1) respectively; Auxiliary heating wire (3) is wound in the outside of internal layer sheath (2) and interior conducting ring (6); Outer protective sleeve (4) and outer conducting ring (7) fragmented packets are rolled in the outside of auxiliary heating wire (3), inner pivot ring in parallel (7) between two sections outer protective sleeves (4) contacts with aluminium hinge line (5) with auxiliary heating wire (3) respectively; Aluminium hinge line (5) hinge is entangled in outer outside of leading sheath (4) and outer conducting ring (7), becomes one, and makes the auxiliary heating wire form the sectional parallel circuit between steel core and aluminium hinge line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104091797A CN102956319A (en) | 2012-10-23 | 2012-10-23 | Inner-parallel high pressure power transmission wire capable of automatically removing coated ice by auxiliary heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104091797A CN102956319A (en) | 2012-10-23 | 2012-10-23 | Inner-parallel high pressure power transmission wire capable of automatically removing coated ice by auxiliary heating |
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| CN102956319A true CN102956319A (en) | 2013-03-06 |
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| CN2012104091797A Pending CN102956319A (en) | 2012-10-23 | 2012-10-23 | Inner-parallel high pressure power transmission wire capable of automatically removing coated ice by auxiliary heating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632764A (en) * | 2013-12-22 | 2014-03-12 | 李天昌 | Internally parallel-connected high-voltage power transmission line overhead ground wire capable of performing auxiliary heating and automatically removing ice coating |
| CN110112694A (en) * | 2019-05-14 | 2019-08-09 | 凯里学院 | A kind of high-tension cable, cable connection methods, de-icing method and deicing system |
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- 2012-10-23 CN CN2012104091797A patent/CN102956319A/en active Pending
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| CN1347630A (en) * | 1999-03-01 | 2002-05-01 | 达特茅斯学院理事会 | Methods and systems for removing ice from surfaces |
| CN2689638Y (en) * | 2004-03-30 | 2005-03-30 | 李林林 | Carbon fibric heating cable with single conducting wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103632764A (en) * | 2013-12-22 | 2014-03-12 | 李天昌 | Internally parallel-connected high-voltage power transmission line overhead ground wire capable of performing auxiliary heating and automatically removing ice coating |
| CN110112694A (en) * | 2019-05-14 | 2019-08-09 | 凯里学院 | A kind of high-tension cable, cable connection methods, de-icing method and deicing system |
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Application publication date: 20130306 |