Heat-collecting de-icing device and method for ice-coating power transformation device

Abstract

The invention discloses a heat-collecting de-icing device and method for an ice-coating power transformation device. The heat-collecting de-icing device comprises a plurality of light-gathering units; each light-gathering unit comprises a parabolic reflector and an infrared lamp; the infrared lamp is arranged on the focus of the parabolic reflector; light of the infrared lamp is reflected by the parabolic reflector to form a collimated light beam; several light-gathering units are configured in a way that several light-gathering units are installed on the internal surface of an internal fixed paraboloid dispersedly, the light beam emitted by each light-gathering unit is perpendicular to the tangent plane of the internal fixed paraboloid on the corresponding mounting point; the focal length b of the internal fixed paraboloid is larger than the safe distance when ice is melt; the ice-coating power transformation device is arranged on the focus of the internal fixed paraboloid; and therefore light of the light-gathering units are gathered to the focus of the internal fixed paraboloid, and safe ice melting can be carried out to the ice-coating power transformation device arranged on the focus. According to the invention, energy loss can be greatly reduced, and the ice-melting efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of disaster prevention and mitigation in electric power systems, and in particular relates to a heat-gathering and deicing device and method for ice-covered substation equipment. Background technique [0002] In southern my country, the winter is low temperature and rainy, and when the temperature is around zero, it is easy to form freezing rain. Freezing rain adheres to the surface of substation facilities and seriously damages the electrical and mechanical properties of the equipment. It is one of the most important natural disasters that threaten the safe and stable operation of the power grid. At present, there are complete sets of ice-melting technology and devices for power substation equipment at home and abroad. The ice-melting methods mainly include thermal deicing and steam melting. The former uses heated air to melt the ice layer, and the latter uses high-temperature saturated steam to melt or ev...

AI Technical Summary

Problems solved by technology

Devices that use thermal deicing need to use long insulated hot air pipes to achieve long-distance deicing work. In order to ensure the safety of ice melting, it requires a very high insulation performance of the insulating pipes, so the equipment of this type is usually large in size, resulting in Poor adaptability to small spaces

Although steam melting ice can also achieve good results, but because the spray is water vapor, it will inevitably reduce the insulation performance of the air gap, so usually only power failure can be used to remove ice, which limits its economic performance

[0003] Aiming at the shortcomings of the above two ice-melting methods for substation equipment, the patent ZL201320355815.2 proposes a device that installs several high-energy photon lamps on a concentrating panel for concentrating heat and melting ice, which can be used for ice-coated substation equipment. It is safe to melt ice, but a single high-energy photon lamp is a scattered point light source, and there is still a large amount of light scattered when it is directly installed on the concentrating panel. It cannot gather all the light, which will inevitably cause a large amount of energy loss and affect the ice-melting effect.

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