Working Principle Of Medical Oxygen Generator

Medical oxygen generator, the common type of pressure swing adsorption oxygen generator, the use of pressure swing adsorption technology to produce oxygen, can extract oxygen from the air. The medical oxygen generator is filled with molecular sieve, the surface area of each gram of molecular sieve can reach 800-1000m2/g, in the case of pressure, the use of molecular sieve physical adsorption technology and desorption technology, adsorption of nitrogen in the air, the unadsorbed oxygen will be collected, through its purification treatment, you can get relatively high purity of oxygen. In the case of decompression of the molecular sieve, the previously adsorbed nitrogen is discharged back into the air. When pressurized again, nitrogen can be adsorbed for oxygen production, therefore, the medical oxygen generator can achieve a periodic cycle of oxygen production, which is a dynamic process.
The oxygen production process of medical oxygen generator (pressure swing adsorption oxygen generator) is shown in the figure. The raw material for oxygen production is air. After the air is filtered (oil, dust, water, solid impurities in the air are removed), the compressed high pressure air is cooled and then enters the adsorption tower for adsorption and separation. The nitrogen and carbon dioxide in it will be adsorbed by molecular sieve, and the gas flowing out of the adsorption tower is the oxygen of relatively high purity, which can be used as medical oxygen. Part of the separated oxygen enters the gas storage tank through the check valve, and then flows out through the flow meter and humidification bottle for users to use after decompression by the pressure reducing valve. The other part of the oxygen in the desorption state of the adsorber for backblowing cleaning, desorption nitrogen through the silencer discharge