On-board oxygen generation-nitrogen generation system based on chemical circulating air separation technology

Abstract

The invention discloses an on-board oxygen generation-nitrogen generation system based on a chemical circulating air separation technology. Air is introduced into a separation system; by using characteristics that a partial chemical material (an oxygen absorbent) can absorb oxygen under a condition of a certain pressure and temperature and can release the oxygen under different conditions, the oxygen and nitrogen in the air are separated. The obtained oxygen with higher purity is used for cabin passengers to breathe or other purposes; nitrogen-enriched air is introduced into a fuel tank to flush and inert the fuel tank so as to achieve a fire and explosion protection purpose. The on-board oxygen generation-nitrogen generation system based on the chemical circulating air separation technology has the advantages that the separation efficiency is high, the energy consumption is low, the system can continuously work and so on.

Description

technical field [0001] The invention belongs to the technical field of aviation systems, and relates to an airborne oxygen-generating coupled system, in particular to an airborne oxygen-nitrogen generating system based on chemical cycle air separation technology. Background technique [0002] To ensure long-term oxygen supply, advanced fighter jets have abandoned the traditional gas oxygen and liquid oxygen as the only oxygen supply method, and turned to airborne oxygen generation technology. It uses inexhaustible air as an oxygen supply source, and through the separation of air by onboard equipment, it meets the needs of the crew for breathing oxygen. Therefore, it has completely changed the situation that the aircraft's endurance time is limited by the onboard oxygen source, and has brought revolutionary changes to the aviation oxygen supply system. Not only that, the airborne oxygen generation technology also greatly reduces the difficulty of logistical support and reduc...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the existing aircraft onboard oxygen and nitrogen production systems that cannot effectively reduce the amount of bleed air from the engine compressor, the system is complex, and the work reliability is low, an airborne oxygen production system based on chemical cycle air separation technology is provided. Nitrogen production system, the air is passed into the separation system, and some chemical materials (oxygen absorbers) can absorb oxygen under certain pressure and temperature conditions, and release oxygen under different conditions, and convert the oxygen in the air separated from nitrogen

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