An ice storage refrigeration system for a non-electric refuge chamber or rescue chamber

Abstract

The invention relates to an ice storage refrigerating system for a powerless refuge chamber or rescue cabin, which comprises an electric refrigerating unit on the outside of the refuge chamber and an ice storage cabinet on the inside of the refuge chamber. The ice storage cabinet is mounted at the center of the top of the refuge chamber or the top of a side wall of the refuge chamber; and a detachable heat-insulation layer is disposed on the surface of the ice storage cabinet. When mining accidents occur in a mine, the power of an underground power grid is cut off, and the ice storage cabinet in the refuge chamber can realize refrigeration and dehumidification under the condition of power failure, does not depend on storage batteries, is not affected by indoor electric storage and directly realizes refrigeration for the inside of the refuge chamber. The ice storage cabinet supplies cold for the refuge chamber or rescue cabin by two heat exchange modes including natural convection and radiation, can lead distribution of temperature and humidity of the inside of the refuge chamber or rescue cabin to be uniform, does not occupy the ground space of the refuge chamber, increases space utilization rate, and does not make noise during working, and escape personnel can feel comfortable in the refuge chamber.

Description

technical field [0001] The invention relates to the field of safety equipment and air-conditioning refrigeration, in particular to an air-conditioning system for coal mine rescue chambers or refuge chambers (collectively referred to as chambers), that is, an electric-free refuge chamber or refuge chamber for ice storage Cooling System. The main function of the invention is to adjust the temperature and humidity inside the rescue cabin or refuge chamber when an accident occurs in the mine, and also to keep food fresh. Background technique [0002] The emergency escape facilities used in mines are mainly divided into refuge chambers and movable rescue cabins. The former is fixed underground in the mine; Workers shall provide a centralized refuge space. The escape cabin can accommodate less escape personnel, about 30 people or less; the refuge chamber can accommodate more people, about 20 to 200 people. [0003] Refuge chambers and rescue chambers (hereinafter collectively r...

AI Technical Summary

Problems solved by technology

The electric air conditioner is highly dependent on electricity. If the external power supply is cut off after a dangerous situation occurs, it must rely on the internal battery for power supply, which requires a higher capacity of the battery. At the same time, the compressor of the electric air conditioner is placed outside the cabin. Explosion-proof requirements are high, there are potential safety hazards, and when the outside temperature is higher than 50°C, the air conditioner cannot be cooled; compressed air cooling is mainly to connect the compressed air pipeline in the rescue cabin or the refuge copper room with the underground compressed air system. Oxygen supply and cooling for personnel in dangerous facilities, but after the occurrence of a dangerous situation, it is impossible to ensure that the power supply of the compressed air system is normal, the compressed air pipeline is not damaged, and the compressed air does not contain toxic and harmful gases; liquid carbon dioxide is used more for vaporization and heat absorption The most expensive is a jet refrigeration air conditioner imported from abroad, which has a high price and has safety problems such as carbon dioxide leakage.

[0007] CN 102312680A provides a cooling system used in rescue cabins and refuge chambers. The problem to be solved is: air conditioners or other refrigeration equipment are sometimes damaged at the same time when mining accidents occur, and the high temperature environment in the mine will endanger the life of refugees. life

Although the power of the DC fan is small, due to the need to maintain the temperature and humidity requirements of the chamber for 96 hours, the configured battery is still very large and takes up a lot of space in the chamber. In addition, the explosion-proof safety of the battery and other issues need to be considered. longevity problem

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