Passive cooling system for coal mine rescue capsule

Abstract

The invention discloses a passive cooling system for a coal mine rescue capsule. The system comprises an air channel arranged inside a personnel capsule and used for conveying cold air, and a concrete foundation arranged outside the personnel capsule. One end of the air channel is enclosed, and the other end of the air channel is sequentially connected to a hand-operated blower fan and a return air inlet. Multiple gas distributors and condensed water outlets are arranged on the air channel. Each condensed water outlet penetrates a base plate of the personnel capsule through an explosion-proof port, and then is downwardly connected to a one-way water discharging valve. Heat dissipation panels and heat pipes connected to the heat dissipation panels are pre-embedded in the concrete foundation, wherein the heat pipes are partially pre-embedded in the concrete foundation. The heat pipes enter the personnel capsule and the air channel through the explosion-proof ports arranged on the base plate of the personnel capsule, and the top portions of the heat pipes in the air channel are sleeved with heat dissipation jackets. The system is low in consumption, is safe, and can effectively cool and dehumidify the rescue capsule.

Description

technical field [0001] The invention relates to a passive cooling system for a coal mine rescue cabin. Background technique [0002] With the continuous development of coal mine mining and safety control technology and the great emphasis on safety production in coal mines all over the world, the safety accidents in coal mines show a decreasing trend year by year. However, safety accidents in coal mines still occur frequently. It has been proved by the practice of various countries in the world that the coal mine rescue cabin, as an independent confined space, can avoid the death of those in distress who cannot ascend the well in time due to inhalation of toxic and harmful gases, and win time for rescue. How to make the coal mine rescue cabin maximize its airtight effect of isolating toxic and harmful gases when saving the lives of people in distress, and create a living environment with a suitable temperature for the refugees. The temperature control in the rescue cabin is ...

AI Technical Summary

Problems solved by technology

However, the refrigerating system it adopts uses the mine power supply to maintain the cooling of the air-conditioning device under normal conditions, and still needs other energy sources such as batteries to provide power to maintain the normal operation of the refrigerating system when an accident occurs. Therefore, although this air-conditioning system solves the problem of explosion-proof Problem, however, when an accident occurs, the temperature and humidity adjustment capability of the air conditioning system still depends on the ice storage situation of the ice storage unit and the power storage situation in the rescue cabin.

Invention patent application No. 201110020347.9 provides the use of liquid carbon dioxide as a refrigerant, and the gasification process of liquid carbon dioxide is used to control the temperature and humidity in the rescue cabin. The advantage of this system is that it does not require a power supply or an external compressor to cool down Dehumidification device, but the disadvantage of this system is that the gasified carbon dioxide gas after absorbing heat is directly discharged outside the rescue cabin, and a large amount of carbon dioxide gathers outside the rescue cabin, which will cause huge obstacles to the rescue work of ground rescuers. Rescuers must carry a large amount of Oxygen can only approach the rescue chamber, and the carbon dioxide concentration must be reduced to the allowable range before opening the rescue chamber, which delays the rescue time

Invention patent application No. 201210175861.4 provides a passive air conditioning device for coal mine rescue cabins. The advantage of this invention is that it can achieve refrigeration by dissolving inorganic salts and water and absorbing fusion heat without consuming any electric energy. The air in the rescue cabin is cooled and dehumidified; however, the disadvantage of this system is that the inorganic salt used in this invention is nitrate, which is dangerous during storage, transportation and use.

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