Cooling, heating and power integrated system based on fuel cell and hydrogen storage device of fuel cell for extravehicular spacesuit

Abstract

The invention discloses a cooling, heating and power integrated system based on a fuel cell and a hydrogen storage device of the fuel cell for an extravehicular spacesuit. The integrated system comprises a fuel cell hydrogen storage device, a proton exchange membrane fuel cell, a thermoelectric cooling component, a liquid cooling suit and a radiator. The liquid cooling suit is used for collecting human body metabolism produced heat and electric equipment produced heat in the extravehicular spacesuit; the fuel cell hydrogen storage device is used for absorbing heat transmitted from the liquid cooling suit and releasing hydrogen to be used by the proton exchange membrane fuel cell simultaneously; the proton exchange membrane fuel cell is used for using the hydrogen released by the hydrogen storage device to generate power to provide power sources for the extravehicular spacesuit; the thermoelectric cooling component is used for matching cooling capacities that can be supplied by the fuel cell hydrogen storage device with heat dissipating capacities needed by the liquid cooling suit so as to enable the capacities to be balanced; and the radiator is used for discharging waste heat produced in a proton exchange membrane fuel cell power generation process and heat discharge by the thermoelectric cooling component into space. The system has the advantages of being small in size, few in consumptive working medium requirements, quick in regeneration process and the like.

Description

technical field [0001] The invention relates to an integrated cooling, heating and electricity system for spacesuits outside the cabin, which is especially suitable for long-time, high-frequency, and multiple times of going out of the cabin. Background technique [0002] The extravehicular spacesuit provides the necessary environmental protection and life support for the astronauts when they perform extravehicular missions. In order to maintain the thermal comfort of the astronauts, the extravehicular space suit needs to provide a cold source; in order to supply power to the components of the life support system such as fans, pumps and separators, as well as the display and control modules, alarm and alarm systems, and radio systems, the extravehicular spaceflight The service needs to provide power. The development of cold source and power supply technologies for extravehicular spacesuits that are easy to maintain, small in size, and less consumable working fluid can reduce...

AI Technical Summary

Problems solved by technology

There are two main disadvantages of the secondary battery power supply. One is that its energy storage density (30-120Wh / Kg) has limited room for improvement, and it is difficult to meet the growing power supply requirements of extravehicular spacesuits; the other is the number of charge / discharge cycles The power supply needs to be replaced frequently when there are many times of going out of the cabin, which increases the difficulty and cost of resupply

Although the principles of these cold sources and power sources are different, they have one thing in common with the currently widely used water sublimator as the cold source and the secondary battery as the power source: the cold source and power supply are designed separately, without cooling Thermal and electrical integration design, which objectively limits the improvement of the overall performance of the system

Images