Anti-icing device for transmission line based on electrothermal hydrophobic material

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 [0001] The invention relates to the field of anti-icing technology for transmission lines, in particular to an anti-icing device for transmission lines based on electrothermal hydrophobic materials. Background technique [0002] According to the latest research results at home and abroad in recent years, there is no substantial progress in passive anti-icing technology for transmission lines. Scholars at home and abroad have explored and studied this problem from various aspects, mainly including reducing the adhesion of ice, reducing the freezing point of water, melting ice due to thermal effects, or their combination. However, the current technical solutions for anti-icing of transmission lines and insulators have their own shortcomings, and cannot completely solve the problem of line icing. In comparison, using thermal effects to melt ice is more obvious and is the most feasible way. [0003] The anti-icing technology using electrothermal hydrophobic coat...

AI Technical Summary

Problems solved by technology

However, the "ice water switch" used in this anti-icing technology cannot adapt to changing climatic conditions, and is only suitable for rainy weather, that is, when there is liquid water; when the ambient temperature is extremely low, the cooling water droplets In the future, if there is time to flow, it will condense into loose ice shoes, the conductive ions will stop moving, and the "switching effect" will disappear, so it will not be able to release heat and melt ice

Therefore, the existing electrothermal hydrophobic material anti-icing technology cannot cope with changeable weather conditions, especially the use effect of rime type icing is not good

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