High-temperature low-pressure and low-temperature high-pressure combined hot wind deicing method for transformer substation

Abstract

The invention discloses a high-temperature low-pressure and low-temperature high-pressure combined hot wind deicing method for a transformer substation, which belongs to the field of transformer substation maintenance. Based on the principle of deicing by heat power, high-temperature low-pressure hot wind blows ice coating on the surfaces of equipment or an insulator, so that the surface of the ice coating is heated uniformly and the ice coating can be melted quickly; meanwhile, since the expansion parameters on heating of the ice coating and the insulator are different, adhesive force between the ice coating and the insulator is weakened; and low-temperature high-pressure gas blows the ice coating to remove the ice coating entirely; and high-temperature low-pressure hot wind can evaporate captured overcooling water drops completely; the quick deicing effect is achieved by combining the high-temperature low-pressure hot wind and the low-temperature high-pressure hot wind. The high-temperature low-pressure hot wind is generated by a high-power hot wind fan, and the temperature is adjustable from 120 DEG C to 150 DEG C, the wind speed is adjustable from 1m / s to 30m / s; the low-temperature high-pressure hot wind is generated by a piston-type air compressor, and the wind pressure is adjustable from 1MPa to 3MPa.

Description

technical field [0001] The invention relates to a substation anti-icing and deicing method, in particular to a substation high-temperature low-pressure and low-temperature high-pressure combined hot air deicing method, which belongs to the field of substation maintenance. Background technique [0002] There are many kinds of equipment or devices in the substation, such as insulators, bushings, tube mothers, switch banks, filter banks, etc. The ice coating on these equipment or devices is one of the natural disasters of the power system. The fault repair caused by ice coating The work is difficult, the cycle is long, and the power outage affects a wide area, which is not conducive to the safe operation of the power system. It has always been a difficult problem that needs to be solved in the industry. [0003] At present, domestic substation anti-icing and deicing methods can be divided into thermal deicing method, mechanical deicing method, natural force deicing method, mate...

AI Technical Summary

Problems solved by technology

This utility model invention does not point out the specific method and exact wind speed, air volume or wind temperature data for the ice coating and deicing of the equipment in the substation, nor does it obtain the effect of hot air deicing and the feasibility of live working through theoretical analysis, simulation calculation and experiment.

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