Two-round energy recovery system of extra vehicular activity space suit life support system

Abstract

The invention discloses a two-round energy recovery system of an extra vehicular activity space suit life support system. The energy recovery system of the extra vehicular activity space suit life support system comprises an oxygen supply loop, a turbine power device and a ventilation and circulation loop, wherein the oxygen supply loop is used for supplementing oxygen consumed by metabolic exhaustion of an astronaut and keeping the absolute work pressure necessarily required inside an extra vehicular activity space suit and takes high-pressure oxygen as power for driving the turbine power device to work and driving a fan in ventilation and circulation to work, and the turbine plays roles of parts of pressure reducers due to acting caused by expansion at the same time; and the ventilation and circulation loop realizes gas circulation and regeneration inside the extra vehicular activity space suit by means of a purification can and the fan driven by the turbine power device, so that carbon dioxide and other harmful gases produced by the metabolic activities of the astronaut are removed, and at the same time, the ventilation and circulation loop absorbs partial produced heat inside the extra vehicular activity space suit. The extra vehicular activity space suit can effectively reduce the total electrical power consumption of the extra vehicular activity space suit, reduce the weight of a storage battery carried with the extra vehicular activity space suit, and improve the energy utilization rate inside the extra vehicular activity space suit.

Description

technical field [0001] The invention relates to a two-wheel energy recovery system for a life protection system of an extravehicular space suit. The system can reduce the power consumption of the life protection system of the space suit and reduce the quality of batteries for out-of-cabin activities, and is suitable for long-term and multiple out-of-cabin activities. Background technique [0002] When astronauts go out of the cabin for detection activities, they will face the extremely harsh space environment. Space suits become the core equipment for astronauts to go out of the cabin, providing the necessary environmental protection and oxygen supply, water supply, ventilation, temperature control, communication functions. Among them, oxygen supply and pressure control, CO 2 and other pollutant control, thermal control, humidity control and other functions are provided by the spacesuit life support system. To complete the above functions, the batteries carried by astronau...

AI Technical Summary

Problems solved by technology

Fans (1-4W) and centrifugal pumps (≤9W) in the ventilation circuit and heat dissipation water circulation circuit need to be driven by the electric drive device provided by the life support system of the space suit, and the efficiency of the electric drive device is often low (15%). To a certain extent, it limits the quality of the power supply system in the space suit

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