CN104600649A - Power transmission line anti-icing device based on electric heating type hydrophobic materials - Google Patents
Power transmission line anti-icing device based on electric heating type hydrophobic materials Download PDFInfo
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- CN104600649A CN104600649A CN201510006693.XA CN201510006693A CN104600649A CN 104600649 A CN104600649 A CN 104600649A CN 201510006693 A CN201510006693 A CN 201510006693A CN 104600649 A CN104600649 A CN 104600649A
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- transmission line
- ice
- insulator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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Abstract
The invention provides a power transmission line anti-icing device based on electric heating type hydrophobic materials. The power transmission line anti-icing device based on the electric heating type hydrophobic materials is arranged on the tower, the transmission wire and the insulator of a transmission line, wherein the insulator is fixedly connected with the transmission wire. The power transmission line anti-icing device based on the electric heating type hydrophobic materials is characterized in that the transmission wire is coated with a wire insulating layer, and the wire insulating layer is coated with a first conducting coating for emitting heat to melt ice; the insulator is covered with a second conducting coating; the transmission wire is provided with an equipotential point electrically connected to the first conducting coating; the first conducting coating and the second conducting coating are connected with a conducting soft connecting wire. The power transmission line anti-icing device based on the electric heating type hydrophobic materials also comprises a gravity switch, which can be electrically connected to the second conducting coating and the tower under the action of gravity of ice coating. The power transmission line anti-icing device based on the electric heating type hydrophobic materials can accurately determine whether ice coating occurs on the transmission line, is more accurate and more reasonable in a thermal effect ice melting control mode, saves a series of complex, time-consuming and labor-consuming operations of personnel such as real-time monitoring, line patrol measurement and ice treading inspection, and is economical, simple and reliable in technology implementation.
Description
Technical field
The present invention relates to Anti-icing of Transmission Lines technical field, particularly relate to a kind of preventing ice coating in electric transmission line device based on electroheating type hydrophobic material.
Background technology
By the achievement in research that recent domestic is up-to-date, in the passive anti-icing technical not substantial progress of transmission line.Chinese scholars is explored in all its bearings this problem and is studied, and is mainly divided into the adhesive force reducing ice, the freezing point reducing water, thermal effect ice melting or their compound.But at present all there is respective shortcoming for transmission line and the anti-icing technical scheme of insulator, the problem that circuit freezes can not be solved completely, comparatively speaking, utilize the effectiveness comparison of thermal effect ice-melt to be also obviously a kind of mode the most feasible.
The anti-shoe ice technology utilizing electroheating type hydrophobic coating is the ice-covering-proof technology that immediate development is got up, it assembles " frozen water switch " on the insulator of transmission line, be somebody's turn to do the conductivity that " frozen water switch " utilizes nature precipitation, the electrically-conducting paint of tandem tap band both sides, thus form complete conducting channel at insulator surface, during without precipitation, " switching effect " disappears, thus controls the energy loss that the non-weather that congeals brings.This ice-covering-proof technology can utilize the hydrophobic material coating being coated in insulator surface, and the electric current being leaked into steel tower by wire produces electrocaloric effect, thus melts the icing of transmission line.But " the frozen water switch " that use in this ice-covering-proof technology can not adapt to changeable climate condition, is only suitable under glaze weather, be namely effective when there is aqueous water; When ambient temperature is extremely low, following must and the flowing of cooling water droplet just condenses into loose shoe ice, conductive ion stop motion, and " switching effect " disappears, and then cannot heat release ice-melt.Therefore, the anti-icing technology of existing electroheating type hydrophobic material can not tackle changeable weather conditions, and particularly the shoe ice result of use of rime type is not good.
Summary of the invention
The object of the invention is to overcome above-mentioned prior art Problems existing, propose a kind of preventing ice coating in electric transmission line device based on electroheating type hydrophobic material, electrocaloric effect ice-melt can be utilized when reaching constant weight by the shoe ice on transmission pressure and insulator.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows:
Based on the preventing ice coating in electric transmission line device of electroheating type hydrophobic material, be arranged on the shaft tower of transmission line, on transmission pressure and insulator, insulator is fixedly connected with transmission pressure, the outside coated wire insulating barrier of described transmission pressure, this wire insulation outer cladding is for the first conductive coating of ice-melt of generating heat, described insulator is coated with the second conductive coating, described transmission pressure is also provided with the isopotential point being electrically connected to the first conductive coating, be connected by the flexible connecting line of conduction between described first conductive coating and the second conductive coating, also comprise the gravity switch for being electrically connected described second conductive coating and shaft tower under the Action of Gravity Field of icing.
Isopotential point on circuit is the UNICOM's point of directly following transmission pressure contact in order to enable electric current be arranged by its conductive coating of covering, on transmission pressure, insulating layer coating is coated with under first conductive coating, electric current is made to leak from isopotential point and to flow through the first conductive coating, second conductive coating etc., when the stressed threshold value that the icing weight that transmission pressure and insulator bear reaches, gravity switch closes, make to be electrically connected between the second conductive coating and shaft tower, and then formed by transmission pressure, isopotential point, first conductive coating, flexible connecting line, second conductive coating, the loop of the Leakage Current that gravity switch is formed to shaft tower, thus utilize the icing on electrocaloric effect thawing transmission line, and after having melted, automatic disconnection gravity switch, terminate deicing processes.This device can judge whether transmission line occurs to carry out ice accurately, in the control mode of thermal effect ice-melt more accurately, rationally, the personnel that eliminate monitor in real time, line walking is measured, carry out the series of complexes such as ice inspection, the work of consuming time, effort, and the operation of equipment does not need DC ice melting to have a power failure like that ice-melt, under transmission line normally runs, ice-melting device just can work, thus also reducing the destabilizing factor affecting operation of power networks, technology realizes upper more economical, simple, reliable.
Described gravity switch comprises Metallic rod and the metal shell of mutual fit, the lower end of described Metallic rod is fixedly connected with insulator joint, the upper end end face of Metallic rod is provided with the first raised brim, this Metallic rod to be also provided with and the first raised brim keeps second raised brim at interval, the upper end of described metal shell is fixed on the connecting ring of shaft tower, lower end is provided with the flanging towards described Metallic rod, and be provided with at the inwall of described metal shell and be placed in location-plate between the first raised brim and the second raised brim, in Metallic rod between described second raised brim and flanging, cover has spring, this spring, flanging, Metallic rod, mutually insulated between second raised brim.It is simple and reasonable, parts low price, low cost of manufacture, and is convenient to transform on existing equipment, practical.
Described isopotential point is arranged on the mid point of adjacent two Ji Ta of transmission line.Transmission line and insulator ice-melt simultaneously can be enable, and the probability that the insulating barrier reducing the larger transmission line of span punctures or comes off, reduce the probability that whole piece transmission line is malfunctioning.
Advantage of the present invention is: this device can judge whether transmission line occurs to carry out ice accurately, in the control mode of thermal effect ice-melt more accurately, rationally, the personnel that eliminate monitor in real time, line walking is measured, carry out the series of complexes such as ice inspection, the work of consuming time, effort, and the operation of equipment does not need DC ice melting to have a power failure like that ice-melt, under transmission line normally runs, ice-melting device just can work, thus also reducing the destabilizing factor affecting operation of power networks, technology realizes upper more economical, simple, reliable; Gravity switch advantages of simple, parts low price, low cost of manufacture, and be convenient to transform on existing equipment, practical; Transmission line and insulator can ice-melts simultaneously, and the probability that the insulating barrier reducing the larger transmission line of span punctures or comes off, reduce the probability that whole piece transmission line is malfunctioning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of gravity switch in the present invention;
Fig. 3 is the structural representation of transmission pressure in the present invention;
Description of reference numerals: 1, transmission pressure; 2, shaft tower; 3, insulator; 4, insulating barrier; 5, the first conductive coating; 6, the second conductive coating; 7, isopotential point; 8, flexible connecting line; 9, metal larynx is pricked; 10, gravity switch; 11, Metallic rod; 12, metal shell; 13, the first raised brim; 14, the second raised brim; 15, location-plate; 16, flanging; 17, spring; 18, combined utensil is connected.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment
As shown in Figure 1-Figure 3, based on the preventing ice coating in electric transmission line device of electroheating type hydrophobic material, be arranged on the shaft tower 2 of transmission line, on transmission pressure 1 and insulator 3, insulator 3 is fixedly connected with transmission pressure 1, the outside coated wire insulating barrier 4 of described transmission pressure 1, this wire insulation 4 outer cladding is for the first conductive coating 5 of ice-melt of generating heat, described insulator 3 is coated with the second conductive coating 6, described transmission pressure 1 is also provided with the isopotential point 7 being electrically connected to the first conductive coating 5, flexible connecting line 8 by conduction between described first conductive coating 5 and the second conductive coating 6 is connected, also comprise the gravity switch 10 for being electrically connected described second conductive coating 6 and shaft tower 2 under the Action of Gravity Field of icing.
In figure, metal larynx is pricked 9 and is played the effect connecting coating on transmission pressure 1 and fixing flexible connecting line 8; Isopotential point 7 on circuit is the UNICOM's points of directly following transmission pressure 1 to contact in order to enable electric current be arranged by its conductive coating of covering, and on transmission pressure 1, the first conductive coating 5 times is coated with insulating layer coatings 4, electric current can be leaked from isopotential point 7 and flows through the first conductive coating 5, second conductive coating 6 etc.Insulating barrier 4 cover whole transmission pressure 1 until with insulator 3 junction, the connection combined utensil 18 between insulator 3 and transmission pressure 1 can choose insulating material, and to avoid between them vibration to cause insulating barrier 4 to break, galvanic circle is imperfect.The first conductive coating 5 outside transmission pressure 1 be connected combined utensil 18 place and maintain a certain distance, the insulating barrier 4 between avoiding breaks and causes creepage distance too low.
When the stressed threshold value that the icing weight that transmission pressure 1 and insulator 3 bear reaches, gravity switch 10 closes, make to be electrically connected between the second conductive coating 6 and shaft tower 2, and then form the loop of the Leakage Current be made up of transmission pressure 1, isopotential point 7, first conductive coating 5, flexible connecting line 8, second conductive coating 6, gravity switch 10 to shaft tower 2, thus utilize the icing on electrocaloric effect thawing transmission line, and after having melted, automatically disconnect gravity switch 10, terminate deicing processes.Wherein, the threshold value of gravity switch 10 is mainly to the stressed limit of the icing weight and transmission pressure 1 and insulator 3 of considering transmission pressure 1 and insulator 3, consider that the elastic deformation of transmission pressure 1 is little, here threshold value can need ice-melt situation to carry out estimating according to practical work experience, avoids icing to the infringement of transmission line in maximum magnitude.
Gravity switch 10 comprises Metallic rod 11 and the metal shell 12 of mutual fit, the lower end of described Metallic rod 11 is fixedly connected with insulator 3 joint, the upper end end face of Metallic rod 11 is provided with the first raised brim 13, this Metallic rod 11 to be also provided with and the first raised brim 13 keeps second raised brim 14 at interval, the upper end of described metal shell 12 is fixed on the connecting ring of shaft tower 2, lower end is provided with the flanging 16 towards described Metallic rod 11, and be provided with at the inwall of described metal shell 12 and be placed in location-plate 15 between the first raised brim 13 and the second raised brim 14, in Metallic rod 11 between described second raised brim 14 and flanging 16, cover has spring 17, this spring 17, flanging 16, Metallic rod 11, mutually insulated between second raised brim 14.Its course of work and principle are: the upper end of metal shell 12 is fixed by the connecting ring of shaft tower 2, the lower end of spring 17 is supported on the flanging 16 of metal shell 12 lower end, and constantly increase along with icing weight, insulator 3 joint can toward tenesmus, haul Metallic rod 11 to move down simultaneously, and then the second raised brim 14 extrusion spring 17 upper end in Metallic rod 11, spring 17 is compressed, the first raised brim 13 simultaneously in Metallic rod 11 progressively moves down, until be stuck on the location-plate 15 of metal shell 12, thus Metallic rod 11 is electrically connected with metal shell 12, namely gravity switch 10 closes, during ice-melt, icing weight progressively alleviates, and spring 17 progressively recovers deformation, and then Metallic rod 11 is separated with metal shell 12, and namely gravity switch 10 disconnects.
This gravity switch 10 is connected on the joint on insulator 3 top, carries out ice weight for perception transmission pressure 1 and insulator 3.Can be the anti-icing electroheating type coating of material base by RTV Silicone Rubber Based Coatings in the coating of the side of Metallic rod 11, play insulating effect, opposite side be connected on the metal parts of shaft tower 2.RTV Silicone Rubber Based Coatings has excellent hydrophobic character and low adhesive force, the electric conducting materials such as carbon fiber are added in RTV silastic material, conductivity can be made it have, form conductive coating, again by adding material number and kind control the resistivity of conductive coating, mate with actual Leakage Current, play electrocaloric effect, under low temperature congeals weather, carry out ice-melt.
Described isopotential point 7 is arranged on the mid point of adjacent two Ji Ta of transmission line.Can transmission line and insulator 3 can ice-melt simultaneously, and the probability that the insulating barrier 4 reducing the larger transmission line of span punctures or comes off, reduces the probability that whole piece transmission line is malfunctioning.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (3)
1. based on the preventing ice coating in electric transmission line device of electroheating type hydrophobic material, be arranged on the shaft tower of transmission line, on transmission pressure and insulator, insulator is fixedly connected with transmission pressure, it is characterized in that, the outside coated wire insulating barrier of described transmission pressure, this wire insulation outer cladding is for the first conductive coating of ice-melt of generating heat, described insulator is coated with the second conductive coating, described transmission pressure is also provided with the isopotential point being electrically connected to the first conductive coating, be connected by the flexible connecting line of conduction between described first conductive coating and the second conductive coating, also comprise the gravity switch for being electrically connected described second conductive coating and shaft tower under the Action of Gravity Field of icing.
2. the preventing ice coating in electric transmission line device based on electroheating type hydrophobic material according to claim 1, it is characterized in that, described gravity switch comprises Metallic rod and the metal shell of mutual fit, the lower end of described Metallic rod is fixedly connected with insulator joint, the upper end end face of Metallic rod is provided with the first raised brim, this Metallic rod to be also provided with and the first raised brim keeps second raised brim at interval, the upper end of described metal shell is fixed on the connecting ring of shaft tower, lower end is provided with the flanging towards described Metallic rod, and be provided with at the inwall of described metal shell and be placed in location-plate between the first raised brim and the second raised brim, in Metallic rod between described second raised brim and flanging, cover has spring, this spring, flanging, Metallic rod, mutually insulated between second raised brim.
3. the preventing ice coating in electric transmission line device based on electroheating type hydrophobic material according to claim 1 and 2, is characterized in that, described isopotential point is arranged on the mid point of adjacent two Ji Ta of transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006693.XA CN104600649B (en) | 2015-01-07 | 2015-01-07 | Preventing ice coating in electric transmission line device based on electroheating type hydrophobic material |
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| CN201510006693.XA CN104600649B (en) | 2015-01-07 | 2015-01-07 | Preventing ice coating in electric transmission line device based on electroheating type hydrophobic material |
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| CN104600649A true CN104600649A (en) | 2015-05-06 |
| CN104600649B CN104600649B (en) | 2017-04-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565489A (en) * | 2017-11-01 | 2018-01-09 | 林永贵 | A kind of preventing ice coating in electric transmission line device based on electroheating type hydrophobic material |
| CN110954167A (en) * | 2019-12-11 | 2020-04-03 | 云南电网有限责任公司昆明供电局 | Line inspection robot fault maintenance and self-checking data acquisition method |
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| JPS62211806A (en) * | 1986-03-11 | 1987-09-17 | 北海道電力株式会社 | Snow coating proof wire |
| JPH0374130A (en) * | 1989-08-10 | 1991-03-28 | Kansai Electric Power Co Inc:The | Transmission line ice and snow accretion preventive device |
| CN2130295Y (en) * | 1992-05-09 | 1993-04-21 | 能源部武汉高压研究所 | Automatic ice-melting device for transmission line without power-cut |
| CN101252056A (en) * | 2008-03-25 | 2008-08-27 | 肖明训 | Switch device of overhead electric power line compound wire automatic melting ice |
| CN202231394U (en) * | 2011-10-27 | 2012-05-23 | 邵鹏万 | Automatic ice-melting wire |
| CN203839895U (en) * | 2014-05-23 | 2014-09-17 | 国家电网公司 | Automatic control anti-freezing power transmission line |
| CN204424844U (en) * | 2015-01-07 | 2015-06-24 | 中国南方电网有限责任公司超高压输电公司梧州局 | Based on the preventing ice coating in electric transmission line device of electroheating type hydrophobic material |
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2015
- 2015-01-07 CN CN201510006693.XA patent/CN104600649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS62211806A (en) * | 1986-03-11 | 1987-09-17 | 北海道電力株式会社 | Snow coating proof wire |
| JPH0374130A (en) * | 1989-08-10 | 1991-03-28 | Kansai Electric Power Co Inc:The | Transmission line ice and snow accretion preventive device |
| CN2130295Y (en) * | 1992-05-09 | 1993-04-21 | 能源部武汉高压研究所 | Automatic ice-melting device for transmission line without power-cut |
| CN101252056A (en) * | 2008-03-25 | 2008-08-27 | 肖明训 | Switch device of overhead electric power line compound wire automatic melting ice |
| CN202231394U (en) * | 2011-10-27 | 2012-05-23 | 邵鹏万 | Automatic ice-melting wire |
| CN203839895U (en) * | 2014-05-23 | 2014-09-17 | 国家电网公司 | Automatic control anti-freezing power transmission line |
| CN204424844U (en) * | 2015-01-07 | 2015-06-24 | 中国南方电网有限责任公司超高压输电公司梧州局 | Based on the preventing ice coating in electric transmission line device of electroheating type hydrophobic material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565489A (en) * | 2017-11-01 | 2018-01-09 | 林永贵 | A kind of preventing ice coating in electric transmission line device based on electroheating type hydrophobic material |
| CN110954167A (en) * | 2019-12-11 | 2020-04-03 | 云南电网有限责任公司昆明供电局 | Line inspection robot fault maintenance and self-checking data acquisition method |
| CN110954167B (en) * | 2019-12-11 | 2022-02-15 | 云南电网有限责任公司昆明供电局 | Line inspection robot fault maintenance and self-checking data acquisition method |
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| CN104600649B (en) | 2017-04-05 |
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