Carbon dioxide air conditioning system

Abstract

The invention discloses a carbon dioxide air conditioning system. The carbon dioxide air conditioning system comprises a liquid-state carbon dioxide storage tank, an evaporator, a pressure reducing valve, an overheater, a pneumatic blower and a filter, wherein a liquid outlet end of the liquid-state carbon dioxide storage tank is connected with a refrigerant liquid inlet of the evaporator; a refrigerant liquid outlet of the evaporator is connected with an air inlet of the overheater through the pressure reducing valve; an air outlet of the overheater is connected with an air inlet of the pneumatic blower; a hot air inlet of the evaporator is connected with an air outlet of the filter; and a cold air outlet of the evaporator is arranged relative to the pneumatic blower. The carbon dioxide air conditioning system is simple in structure and reliable and safe in refrigerating operation, and can fulfill the aims of refrigerating dehumidification and air purification of the internal environment of a rescue capsule under the condition of having no electric power driven equipment.

Description

[0001] technical field [0002] The invention relates to the field of air-conditioning and refrigeration systems, in particular to a carbon dioxide air-conditioning system used in a rescue cabin. Background technique [0003] my country's coal mine industry is currently promoting life-saving equipment. All coal mines will install life-saving equipment in 2013, and then further promote it to non-coal mines. Due to the particularity of the coal mine environment, the ambient temperature under the mine is constant, and the CH 4 , CO and other gas concentrations are high, dust and humidity are high, and the passive carbon dioxide air conditioner's outstanding performance in explosion-proof and energy-saving makes this type of air conditioner a major research direction for the environmental control equipment of the rescue cabin. [0004] Conventional refrigeration and ventilation systems usually require an external power drive to achieve cooling, but when all power or backup powe...

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Problems solved by technology

[0004] Conventional refrigeration and ventilation systems usually require an external power drive to achieve cooling, but when all power or backup power is lost, some specific occasions or important equipment, such as coal mine refuge facilities, high-end electronic equipment, Instruments, hospitals, weapons and other equipment still need refrigeration to ensure that they can be safely operated and shut down within a certain period of time. At this time, in an environment without external power drive, refrigeration cannot be realized.

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