Mobile direct-current ice melting device for efficient ice melting of 500kV line and ice melting method

Abstract

The invention discloses a mobile direct-current ice melting device for efficient ice melting of a 500kV line and an ice melting method. The device comprises a vehicle body; a box body is fixedly installed on the top of the vehicle body; a machine shell is fixedly installed on the left side of the bottom of an inner cavity of the box body; and a silicon controlled module is fixedly installed on the inner wall of the machine shell. According to the device, by arranging an air extractor, heat generated by the silicon controlled rectifier module can be transmitted into the box body for warming workers, the workers in a low-temperature state for a long time are prevented from being frostbitten, and therefore the heat generated by the silicon controlled rectifier module is fully utilized; a blocking curtain and a hot air curtain are further arranged in the device, flying snow and low-temperature air can be prevented from entering the box body, the safety of equipment can be guaranteed, and the heat preservation performance of the box body can be improved; and meanwhile, the box door in the device is designed to be opened upwards instead of being opened towards the two sides, and by means of the design mode, rain and snow can be blocked at the opening of the box door and further prevented from entering the box body. The method is suitable for power transmission lines.

Description

technical field [0001] The invention relates to the technical field of ice-melting equipment, in particular to a mobile DC ice-melting device and an ice-melting method for efficient ice-melting of 500kV lines. Background technique [0002] DC icing mainly applies DC voltage to the transmission line and short-circuits the end of the transmission line to make the conductor heat up to thaw the transmission line, so as to avoid the line being broken due to icing. The DC icing technology is advanced and does not require Very large loads generally only need 10,000 to 20,000 kilowatts, and the DC output voltage is adjustable, which can melt ice for a single line of different lengths within a certain range, no need to connect lines in series, and the operation is relatively simple. The ice melting work provides a more convenient way. [0003] The current mobile DC deicing device is mainly designed in the form of a car body, but there are the following defects in the current use pro...

AI Technical Summary

Problems solved by technology

[0004] 1. During the use of the mobile DC ice-melting device, the thyristor will emit a large amount of heat, which is often directly exchanged by the cooling device to the outside of the car body, resulting in waste of heat, because the ice-melting process requires a lot of energy. For a certain period of time, workers must be in a relatively warm environment during this period, otherwise there will be a risk of frostbite, but during the operation of the equipment, someone must take care of the equipment, so the current device of the heat does not Not being used effectively;

[0005] 2. In some bad weather, such as sleet weather, the movable door of the compartment needs to be opened during the use of the equipment, which makes the equipment easily exposed to the air. If a gust of wind is generated, it is easy to blow the rain and snow into the compartment. Since the interior of the carriage is basically electrical equipment, it is very easy to cause safety accidents; in order to solve the above-mentioned problems, the present invention designs a mobile DC ice-melting device for efficient ice-melting of 500kV lines

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