The VPSA oxygen plant consists of power system, adsorption system, valve system, instrument control system, electronic control system and supporting public & auxiliary system, which are respectively described as follows:

The power system, consisting of Roots blower, Roots vacuum pump, electric motor, air filter, silencer, elastic joint and other ancillary parts, works to provide the positive pressure and vacuum level as required for adsorption and desorption of the adsorbent.

The adsorption system is made up by stuffing, adsorption vessel, and a buffer tank and heat exchanger matched thereto.

The valve system is composed of special regulating valves, switching valves and hand valves. The regulating and switching valves are all pneumatic butterfly valves controlled by PLC. Both adsorber-to-adsorber and adsorber-to-power equipment disconnecting and connecting can be realized by switching valves.

The instrument control system contains the control system and field instruments. The latter is composed of transmitter, oxygen analyzer, orifice flow-meter, vibration sensor, etc.

The electronic control system is made up by the inlet cabinet, PT cabinet, outlet cabinet, soft starting cabinet, uninterrupted power supply, etc.

The public auxiliary system, mostly provided by users, offers the necessary circulating water, soft water, electricity and instrument gas for the VPSA plant.