Air separation internal compression oxygen adjusting system

The utility model discloses an air separation internal compression oxygen adjusting system. The system comprises a fractionating tower system, a heat exchanger and a controller, liquid oxygen generated by the fractionating tower system is pressurized by the liquid oxygen pump and then conveyed to the heat exchanger for heat exchange and gasification into oxygen; an outlet pipeline of the liquid oxygen pump is connected with a backflow pipeline, and a backflow control module connected with the controller is arranged on the backflow pipeline; an oxygen output regulating valve is arranged on an oxygen out-of-tower conveying pipeline connected with the heat exchanger, and the oxygen out-of-tower conveying pipeline is communicated with an oxygen emptying pipeline provided with an oxygen emptying regulating valve; detection equipment for detecting the oxygen output pressure, the oxygen concentration and the oxygen tower outlet flow is arranged on the oxygen tower outlet conveying pipeline; a detection device for de