Frostless-air cooling and dehumidification system and method

Abstract

The invention relates to a frostless-air cooling and dehumidification system and a method. The system comprises CO2 liquid storage tanks, a manual valve, a regenerator, a first constant-pressure valve, a cooling evaporator, a second constant-pressure valve, an electromagnetic valve, a graded temperature control valve bank, a pneumatic fan, CO adsorbent, CO2 adsorbent and a CO2 storage room, liquid CO2 is throttled and cooled for two times after cold energy is recovered by the preposed regenerator, so that the evaporator cannot be frosted and the cold energy can be prerecovered, the graded temperature control valve bank regulates the flow of the CO2 in the cooling and dehumidification system by grading, so that the evaporation capacity of the cooling evaporator and the refrigerating output of the cooling and dehumidification system can be controlled and the system load and the temperature in an escape capsule can be regulated by grading, the pneumatic fan drives the air in the escape capsule to circulate, and thereby the environment in the escape capsule can be controlled in conditions suitable for living.

Description

technical field [0001] The invention relates to the field of refrigeration and air conditioning, especially a cooling and dehumidification device and method for extreme environments under the condition of no power supply, and is a frost-free air cooling and dehumidification system and method. Background technique [0002] In recent years, domestic mining accidents have occurred frequently, and are always accompanied by large and small casualties, and the life safety of miners cannot be guaranteed. According to the surveys of mine accidents in various countries in the world, the miners who were injured and died instantly at the scene of fire, explosion and other accidents only accounted for a part of the casualties in the accident. Fleeing from the scene of high-temperature toxic and harmful gases, resulting in drowning, suffocation or poisoning death. After the mine disaster occurs, the passages in the mine will be blocked due to landslides, making it difficult for rescue w...

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Problems solved by technology

[0004] The problem to be solved by the present invention is: the emergency escape cabin needs to cool down and dehumidify the cabin environment, remove CO 2 As well as air treatment such as purification of toxic and harmful gases, the existing CO 2 There is a problem of frosting in the driven refrigeration and cooling system, which makes the refrigeration and cooling system unable to operate stably and reliably, and the existing defrosting method cannot meet the application requirements of the rescue cabin

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