MABR membrane box gas flow control system

A gas flow control system for an MABR membrane box comprises: an MABR membrane box body having a membrane box gas inlet and a membrane box gas outlet; the air supply unit is used for providing air and oxygen; the air inlet flow adjusting unit is used for adjusting the air quantity and the oxygen concentration entering the air inlet of the membrane box; the drying unit is provided with a first gas inlet and a second gas outlet, and the first gas inlet is connected with the membrane box exhaust port and used for drying gas exhausted from the membrane box exhaust port; an exhaust flow rate adjusting unit; the sensor group is at least used for detecting the oxygen concentration of the air inlet of the membrane box and the oxygen concentration of the second air outlet; the display control unit is electrically connected with the air inlet flow adjusting unit, the exhaust flow adjusting unit and the sensor set. Through the system, the problems that the oxygen concentration of gas supply and exhaust of the MABR membr