Air separation system device

The utility model relates to the technical field of oxygenerator molecular sieve drums, and particularly discloses an air separation system device, which is provided with a first molecular sieve drum, a second molecular sieve drum and an oxygen storage tank, the molecular sieve drum device comprises an upper concentrator, a lower concentrator, a lower concentrator, a first air inlet and a second air inlet, the upper concentrator comprises an upper pressing body, and the upper pressing body is provided with a first through hole; the lower concentrator comprises a lower pressing body, and a second through hole is formed in the lower pressing body; a first molecular sieve cylinder, a second molecular sieve cylinder and an oxygen storage tank are clamped between the upper pressing body and the lower pressing body; the connecting screw rod is installed in the first through hole and the second through hole in a penetrating mode, a limiting head is arranged at one end of the connecting screw rod, and a locking nut i