Comprehensive protection sealed cabin for electrical equipment in high-altitude region

Abstract

A comprehensive protection sealed cabin for electrical equipment in a high-altitude region comprises a sealed cabin body, an oxygen enrichment preparation unit, a compressed air unit, an airflow control unit, temperature sensors, a power supply treatment unit and a controller, wherein the sealed cabin is a heat-preservation, waterproof and airtight pressure-bearing cabin body; except the air compressor, the compressed air unit is mounted at the bottom in the sealed cabin; the airflow control units are mounted at the top and the bottom in the sealed cabin; except the oxygen-enriched air bag, the oxygen-enriched preparation units are all arranged on the side, close to the edge, of the top in the sealed cabin; the temperature sensors are mounted on electrical equipment in the sealed cabin; the power supply treatment unit is mounted in the lower gas control group; and the controller is embedded into a cabin door of sealed cabin. According to the comprehensive protection sealed cabin, positive pressure is formed in the sealed cabin through compressed air, the content of oxygen in the cabin is reduced through a membrane nitrogen-oxygen separation device by means of pressure difference, the power supply reliability is improved through power grid management, non-derating use of low-altitude electrical equipment in a high-altitude region is achieved, and dust prevention, fire prevention, directional temperature control and reliable power supply are achieved.

Description

technical field [0001] The invention relates to a sealed cabin. Background technique [0002] As we all know, the air at high altitudes is thinner, the lower the air density, the lower the atmospheric pressure, which increases the air viscosity coefficient, reduces the number of air molecules, and reduces the contact of molecules, which leads to the reduction of air convective heat transfer. [0003] For every increase of 1000 meters above sea level, the temperature drops by about 6.5°C and the atmospheric pressure drops by about 11KPa. At a height of 5000m, the atmospheric oxygen content and atmospheric pressure are about 60% of those in the plain area, the heat release coefficient is 21% lower than the value at sea level, and the heat transferred by convective heat exchange is also reduced by 21%, which will lead to a decrease in the temperature rise of the product Increase. [0004] According to Basson's law, the dielectric strength of the medium changes into a concave ...

AI Technical Summary

Problems solved by technology

At a height of 5000m, the atmospheric oxygen content and atmospheric pressure are about 60% of the plain area, the heat release coefficient is 21% lower than the value at sea level, and the heat transferred by convective heat exchange is also reduced by 21%, which will lead to a decrease in the temperature rise of the product. Increase

However, fires and explosions in energy storage battery cabinets often occur in newspapers. In addition to the battery itself, there are also reasons such as poor temperature control effect, dust accumulation reduces insulation strength, and meets the environment of combustion air.

However, the current countermeasures, such as the container-type energy storage automatic fire-fighting system, use sensors and other detection devices to detect temperature, smoke and combustion accidents before taking fire-fighting measures to control the fire. Most of them are post-event passive fire-fighting measures. Some property damage has been caused

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