Power transmission line deicing device propelled along spiral trajectory

Abstract

The invention relates to a power transmission line deicing device propelled along a spiral trajectory, and belongs to the field of power transmission line deicing and maintenance equipment, and the driving device body is driven by a drill bit and a driving mechanism to be inserted into the ice coating layer, an ice layer is broken by the aid of a blasting body dragged on the rear side of the device body, and the deicing effect is guaranteed. The spiral device body is wound on the power transmission line, so that the running track is spiral, the device is simple in structure, the drill bit andthe driving mechanism in the device are mechanically driven, damage caused by explosion due to an electrical element is avoided, and the safety and stability of equipment are guaranteed.

Description

technical field [0001] The invention belongs to the field of power transmission line deicing maintenance equipment, and in particular relates to a power transmission line deicing device propelled along a spiral track. Background technique [0002] Transmission lines are usually erected in an open field environment. When the ambient temperature drops in winter, the moisture in the air will condense on the transmission line to form icing, and the icing of transmission lines will cause the following hazards: [0003] (1) Damage to the tower. If the line is covered with ice too thick, the mechanical load of the tower will be overloaded and broken. [0004] (2) Line tripping. For lines with vertically arranged conductors, when the ice coating on the lower conductors falls off first (the ice coating on the conductors does not necessarily fall off at the same time), the conductors will rise rapidly or jump up and down, causing a phase-to-phase short circuit, causing the line swit...

AI Technical Summary

Problems solved by technology

For lines with vertically arranged conductors, when the ice coating on the lower conductors falls off first (the ice coating on the conductors does not necessarily fall off at the same time), the conductors will rise rapidly or jump up and down, causing a phase-to-phase short circuit, causing the line switch to trip and power supply to interrupt

[0005] (3) The insulator string is inclined and the wire is seriously drooping

In the span where the ice is too thick, it will cause the wire to droop seriously and cause a grounding accident

[0006] (4) After the insulator string is covered with ice, the insulation performance will be greatly reduced

When the hanging insulator string is covered with ice and melts, icicles may be formed, short-circuiting the insulator string and causing a grounding accident

[0007] At present, there are mainly two types of risk removal methods: ice melting and mechanical deicing. Among them, the ice melting method is to heat the transmission line to achieve ice melting. heat generation), short-circuit ice melting (suitable for three-phase power transmission lines), high-frequency excitation ice melting (using the skin effect of high-frequency high-voltage electricity to cause resistance loss and heat on the transmission line to melt ice), using The deicing method inevitably requires a certain degree of transformation of the transmission line, and requires a large amount of energy for heating, and the cost and difficulty of deicing are high; while mechanical deicing is mainly carried out by equipment installed on the transmission line. The main method is to use knocking, shaking or blasting. The problem is that the area where the transmission line is located is generally strong wind, and the equipment is deflected by the wind, making it difficult to work effectively. The thicker ice layer on the transmission line is crushed, which makes the deicing work less effective and difficult to achieve the expected effect. The blasting method needs to fix the blasting body on the ice layer in advance, and the blasting method is external blasting, which has limited deicing effect and low efficiency.

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