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Toxic gas removal and air conditioning system for human life support in enclosed refuge spaces
Toxic gas removal and air conditioning system for human life support in enclosed refuge spaces
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机译:封闭式避难所中有毒气体和空调系统可为人类生命提供支持
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摘要
An intrinsically safe, self-contained toxic gas removal and air conditioning system for use in an underground mine environment to continuously remove from air sealed in the chamber the CO2 and/or CO from exhalations of up to thirty adult occupants. The system includes an explosion-proof/fire-proof shell strong enough to withstand a 15 psi explosion outside the survival chamber in which the air-scrubbing system is installed. In the event of normal power loss, the system runs on an internal battery capable of 96+ hours of continuous operation while incapable of creating an explosion hazard. A fan motor mounted inside the external shell is driven by a fan driver circuit and is coupled to a driveshaft extending outside the external shell to drive an air scrubber fan. A fan driver/controller circuit powers the fan and detects the loss of externally-provided AC power to automatically start operation when such power loss is detected.
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