Onboard double-bed temperature swing adsorption oxygen generation system with low air entraining content, and working method thereof

The invention discloses an onboard double-bed temperature swing adsorption oxygen generation system with a low air entraining content, and a working method thereof. The system comprises an air entraining module, an oxygen generating module and a temperature regulating module; and air is introduced from an engine through the air entraining module, and oxygen is alternately generated in the separation bed of the oxygen generating module by the principle of temperature swing adsorption. The cold energy required by the oxygen generating module is provided by an evaporative cycle refrigeration system in the temperature regulating module, and required heat energy is provided by a combination of the evaporative cycle refrigeration system and a heater without entraining hot air from the engine. The cold energy and the heat energy undergo closed cycle transmission generated by waste gas generated by the oxygen generating module. The onboard double-bed temperature swing adsorption oxygen generation system realizes oxyg