Medical oxygen is separated from atmospheric oxygen by cryogenic separation. After repeated compression and cooling, the gaseous oxygen was transformed into liquid oxygen at a low temperature of-183℃. After repeated rectification and purification, dust and impurities, carbon monoxide, carbon dioxide and water vapor are removed, then compressed and gasified, and directly filled into oxygen cylinders.
Whether the oxygen generator uses molecular sieve or oxygen-enriched membrane to make oxygen; The purity of oxygen is lower than that of bottled medical oxygen. When using the oxygen generator to absorb oxygen, it is necessary to open the window for ventilation or lead the gas collector of the oxygen generator to the outdoor for ventilation to improve the oxygen concentration.
Extended data:
The use of medical oxygen:
1, slowly open the gas cylinder valve, and the pressure indicator is within the normal range (13.3-15mp), and then the regulating valve is closed. Fill the humidifying bottle with purified water, cold boiled water or distilled water to the specified scale.
2. Connect the oxygen inhalation tube, open the regulating valve, and adjust the flow to the normal value (1.5 L-2 L/min). Please follow the doctor's advice when in urgent need.
3. After the airflow is stable, gently insert the nose end of the straw into the nostril and start oxygen inhalation.
4. After oxygen inhalation, close the valve of the gas cylinder first, close the regulating valve after the small floating ball of the flowmeter returns to zero, and take out the nose of the straw from the nostril.
Baidu encyclopedia-medical oxygen