Wind electric field collector line leading wire spraying de-icing method and system

Abstract

The invention provides a wind electric field collector line leading wire spraying de-icing method. The method comprises steps that (1), in-situ molded anti-pollution flashover PRTV paint is prepared;(2), on-site investigation before construction is carried out in advance; (3), insulators are cleaned; (4), adjacent parts of suspended string spraying parts are protected; (5), a lead part is sprayed; (6), one or two times of high-altitude spraying are carried out through utilizing scaffolds, ladders or work vehicles, high-altitude spraying from top to bottom without trampling, stepping or colliding with the sprayed insulators is carried out, damage to the spraying surface is avoided, and influence on the spraying quality is avoided; and (7), quality inspection is carried out to guarantee thespraying effect. The invention discloses a corresponding wind electric field collector line leading wire spraying de-icing system. Collapse of towers and line break caused by severe icing are solved,leading wire icing is effectively reduced, bird damage is prevented, lower leading wire insulation is enhanced, the anti-pollution flashoverover effect after equipment operation is guaranteed, and endless cleaning, lifting and other maintenance works are omitted.

Description

technical field [0001] The invention belongs to the field of electric equipment repair and maintenance, and in particular relates to a method and system for spraying and anti-icing the leading wires of the collector lines of wind farms. Background technique [0002] Ice can adhere to the surface of any object, and the tiny cracks and sunken pits on the surface of the object are the main reasons why ice can firmly adhere to the surface of the object. Therefore, the different structural shapes, structural materials, structural organization, surface smoothness, surface energy and surface rigidity of wires are intrinsically related to icing. [0003] 1. Causes and process of ice formation [0004] Conductor icing is firstly determined by meteorological conditions, which is a comprehensive physical phenomenon determined by factors such as temperature, humidity, cold and warm air convection, circulation, and wind. Icing occurs when water droplets in clouds or fog collide with th...

AI Technical Summary

Problems solved by technology

[0012] 2. Factors Affecting Icing

[0014] 3. Characteristics of transmission line icing hazards

[0033] 3) High-frequency excitation ice melting: At the end of the 20th century, Charles RSullivan et al. proposed a method of using 8-200kHz high-frequency excitation to melt ice. The mechanism is that ice is a lossy dielectric at high frequencies, which can directly cause heat generation, and the skin effect causes The current only flows in a very shallow range on the surface of the conductor, causing resistance loss and heating

In the anti-pollution flashover technical measures of insulators, silicone coatings are mainly used, such as silicone oil, silicone grease, long-term silicone grease and room temperature vulcanized silicone rubber (RTV), but the existing anti-icing coatings cannot fundamentally prevent the formation of ice , and it can only take effect under sufficient radiation. When the temperature is low and the water mist is supercooled, the anti-icing effect is poor

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