PSA的氧气发生器

The oxygen generator operates on pressure swing adsorption (PSA) principle to produce continuous stream of high purity oxygen from compressed air with zeolite molecular sieve (ZMS) at room temperature. Nitrogen, carbon dioxide and other gases are preferentially adsorbed by the ZMS, allowing oxygen to pass through. Usually, smaller oxygen generators use PSA technology, that is, adsorbing under 4 8 bars and desorbing at atmospheric pressure. The bigger ones use VPSA technology, which adsorbs around 0.3 bar and desorbs in the vacuum so that the power consumption falls to 0.45kW/Nm3. PSA oxygen generators contain single, two, three or more adsorbent vessels, but the majority of them contain two vessels. With promotion of LIX molecular sieve, the oxygen capacity of adsorbent increased and the consumption is lower currently. Parameters: 1) O2 flow-rate: 1 3,000Nm3/h 2) O2 purity: 93±2% or ≥99% 3) Outlet pressure: ≤0.6MPa 4) Energy consumption: ≤0.45kW/m3O2 5) Compressed air pressure: ≥0.6MPa (fan pressure: ≥30KPa) 6) Dew point: ≤-40° 7) Oil content: ≤0.01mg/m3 New type of oxygen generation molecular sieve largely increases the oxygen capacity and reduces the powder consumption of the equipment.Air flow disposal and reliable molecular sieve impaction of adsorption prevent the loss of molecular sieve and guarantee the adsorbent for more than 10 years' using.The pneumatic program control valve makes the equipment start and stop quickly, which can be used more than 1,000,000 times in 2 years. Imported PLC control system is easy to set and monitor to ensure the equipment stabile and reliable in a long term. Analyzer continuously examines and displays the oxygen purity.