VPSA Oxygen Plant
VPSA special molecular sieve adsorbs impurities such as nitrogen, carbon dioxide, and water from the air.
The molecular sieve is desorbed under vacuum to produce high purity oxygen (90-95%).
The energy consumption of VPSA is low; more larger the equipment, the lower the energy consumption.
- Oxygen Purity: 60%-95%±2%
- Oxygen Capacity: 50-80000Nm³/h
- Start-up Time: ＜20mins
- Service life: ≧10 years
- Noise (at 1m from plant): ≦85dB
- Operating mode: Automatic control, continuous running
- Delivery Time: 30-45 days
How Does VPSA Oxygen Plant Work?
Low-pressure adsorption vacuum desorption
nitrogen oxygen in the air under low-pressure conditions, adsorption saturated molecular sieve desorption under vacuum conditions, the nitrogen from the discharge port, oxygen into the purification system, molecular sieve continuous adsorption decompression, and thus the cycle to produce a higher purity of oxygen (90 ~ 95%).
Compared to PSA, VPSA consumes less energy. The larger the oxygen plant, the lower the energy consumption.
VPSA Oxygen Plant Working Flow
The VPSA oxygen system consists of a blower, vacuum pump, switching valve, adsorber and oxygen buffer tank.
1. The blower conveys low-pressure air to purify and remove the dust
2. The air after dust removal enters the adsorption tower VPSA-02 from the bottom of the tower.
3. The nitrogen, water, carbon dioxide, and hydrocarbons in the air are adsorbed by the adsorbent (molecular sieve) inside the tower
4. first through the atmospheric pressure desorption, and then through the vacuum pump vacuum to reach a certain vacuum, so that the adsorption tower adsorption magazine completely desorption regeneration
5. Oxygen is piped from the top of the tower into the oxygen buffer tank for backup.
6. Under the control of the PLC control system, when the adsorption in the tower reaches a certain saturation level, the programmed control valve is switched to complete the continuous oxygen production.
