Integrated treatment device and method for non-consumption type carbon dioxide and water

Abstract

The invention belongs to the technical field of space flight and aviation life support and environmental control, particularly relates to an integrated combined treatment device and method for non-consumption type carbon dioxide and water. The device comprises an air supply unit, an adsorption and desorption unit, and necessary control valves, connection pipelines and control systems, wherein the adsorption and desorption unit is an integrated separator and is divided into a lower adsorber and an upper adsorber; a hydrophobic carbon dioxide hollow fiber molecular sieve in the lower adsorber is used as an adsorbent and is used for adsorbing the carbon dioxide in gas; a mesoporous zeolite hollow fiber molecular sieve in the upper adsorber is used as an adsorbent and is used for adsorbing the water in the gas; a desorption device is arranged between the lower adsorber and the upper adsorber and is used for performing heating and regeneration on the used adsorbent. A plurality of integrated separators can be provided, which are connected in parallel or series to operate. The device can effectively realize integrated treatment of the carbon dioxide and the water in a cabin, and can reduce the weight and the power consumption of a system and the consumable supply demand.

Description

technical field [0001] The invention belongs to the technical field of aerospace bio-protection and environmental control, and specifically relates to a treatment device for carbon dioxide and water in the atmospheric regeneration subsystem in a bio-protection and environmental control system, and more specifically, to a non-consumable integration of carbon dioxide and water Joint processing unit. Background technique [0002] The environmental control and life support system (ECLSS for short) is the most important system of a manned space vehicle. Usually, the environmental control and life support system consists of six subsystems: temperature and humidity control subsystem, atmospheric control and supply subsystem , Atmospheric Regeneration Subsystem, Fire Detection and Suppression Subsystem, Water Recovery and Management Subsystem, and Waste Management Subsystem. [0003] The atmospheric regeneration subsystem is directly related to the life safety of the aircraft crew....

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Problems solved by technology

However, because the traditional 5A molecular sieve adsorbs carbon dioxide and absorbs water strongly at the same time, there is competitive adsorption, so the pre-drying treatment has to be used, which will make the device design more complicated, control difficult, weight, volume, and regeneration power consumption are large, and , the traditional zeolite molecular sieves are granular molecular sieves, and these molecular sieves are easily broken into powder under environmental conditions such as launch and vibration, and even if they are in normal operation, they will be frequently switched and the design airspeed is too high due to the limited conditions of space and volume. The fluidization phenomenon of molecular sieves caused by advanced objective design conditions will not only reduce the service life of the system, but also pollute its downstream equipment

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