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Pressure swing adsorption oxygen production is to use zeolite molecular sieve as adsorbent, using the principle of pressure adsorption and pressure desorption to adsorb and release nitrogen from the air, so as to separate oxygen. Zeolite molecular sieve is a kind of spherical granular adsorbent which is processed by special pore type treatment process, and its surface and interior are full of micropores. The characteristics of its pore make it possible to realize the kinetic separation of O2 and N2. The separation of O2 and N2 by zeolites is based on the small difference of the kinetic diameters of the two gases. N2 has a faster diffusion rate in the micropores of zeolites, while O2 has a slower diffusion rate. The diffusion of water and CO2 in compressed air is similar to that of nitrogen. Finally, oxygen molecules are enriched from the adsorption tower.
Oxygen generators produce gaseous oxygen from compressed air on site and offer a cost-effective, reliable and safe alternative to traditional oxygen gas supplies such as cylinders or cryogenic liquid. Oxywise Oxygen Generators are available in 40 standard models with capacity ranging from 1 to 200 Nm3/hour at 90-99% purity. The design is made for round the clock 24/7 operation. Each generator is equipped with automatic start&stop function, enabling the generator to start and stop automatically according to the consumption.
Oxygen generator incorporated with oxygen high pressure compressor for filling cylinders creates a system called Oxygen generating and filling station. System consists of essentials such as air compressor, dryer, filtration etc. and standard features including molecular sieve protection, stainless steel piping and many more.
The technical features of the oxygen generator after PSA are as follows
(1) Imported PLC control system and imported pneumatic angle seat valve with switching life up to 3 million times are adopted to ensure the continuous and reliable operation of the device.
(2) Imported PLC intelligent controller, easy to operate, stable operation, high degree of automation. Can choose touch screen control system, computer industrial control system.
(3) Reasonable internal components, uniform airflow distribution, reduce the impact of high-speed airflow.
(4) Special molecular sieve protection measures extend the service life of zeolite molecular sieve.
(5) The automatic interlock oxygen emptying device ensures the oxygen quality of the product.
(6) The operation of the whole machine can be: depending on the organic combination of advanced oxygen production process design, scientific gas distribution structure, adsorption tower with compound bed structure, unique molecular sieve filling process, unique molecular sieve protection measures and automatic compression compensation device of cylinder, it is conducive to the long-term use of oxygen molecular sieve.
Process flow chart for reference only
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1~200Nm3/h |
Oxygen purity |
30%-98% |
Oxygen dew point |
≤-45ºC |
Export pressure |
0.1~0.8Mpa |
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