Research on extension design of airborne electronic equipment audio management module cabin environment oxygen supply and purification system
Xiaomin Xie, Hui You Chang · 2025
Aiming at the shortage of air purification caused by ventilation in the cabin environment of the audio management module, the internal circulation adsorption purification measures are adopted, the cabin air is sucked by the fan, and the harmful gas is filtered by the primary filter purification filter element, and the gas concentration ratio in the cabin reaches a reasonable range through circular filtration. Regenerative purification filter element adopts the principle of variable temperature adsorption/desorption, and the special adsorbent contained in it can adsorb and remove a variety of harmful gases at room temperature. In oxygen supply and oxygen production, aiming at the shortage of pure flexibility in the spring damper in the compressor, the plateau adaptive frequency conversion technology is adopted to make the oxygen production module work at high altitude, and the frequency conversion can be automatically performed according to the external air pressure, so as to ensure that the output air source of the compressor can meet the oxygen production requirements in the low air pressure environment. Aiming at the problem that the oxygen production performance of the traditional oxygen production system decreases at high altitude, based on the pressure swing adsorption oxygen production technology, the automatic frequency conversion adjustment technology is innovatively integrated, and an altitude adaptive frequency conversion oxygen production system is designed, which can automatically adjust the oxygen production performance with the change of atmospheric pressure, so as to improve the oxygen production flow and concentration of the oxygen production system at high altitude, so as to meet the requirements of the oxygen concentration and oxygen flow of the system at high altitude.