Principle of Medical Molecular Sieve Oxygen Generator

The main components of air are nitrogen and oxygen. By utilizing the different adsorption properties of nitrogen and oxygen on zeolite molecular sieve (ZMS) at ambient temperature (oxygen can pass through while nitrogen is adsorbed), an appropriate process is designed to separate nitrogen and oxygen to produce oxygen. Nitrogen has a stronger adsorption capacity on the zeolite molecular sieve than oxygen (due to stronger interactions between nitrogen and the surface ions of the molecular sieve). When air passes through an adsorption bed filled with zeolite molecular sieve adsorbent under pressure, nitrogen is adsorbed by the molecular sieve, while oxygen, being less adsorbed, is enriched in the gas phase and flows out of the adsorption bed, thereby separating oxygen from nitrogen to obtain oxygen. When the molecular sieve is nearly saturated with adsorbed nitrogen, the air supply is stopped, and the pressure in the adsorption bed is reduced, allowing the adsorbed nitrogen to desorb. The molecular sieve is thus regenerated and can be reused. By alternating between two or more adsorption beds, oxygen can be produced continuously.

Technical Features of Medical Molecular Sieve Oxygen Generator

1. Easy installation, compact equipment structure, integrated skid-mounted design, small footprint, no need for infrastructure investment, low investment cost.

2. Filled with high-quality zeolite molecular sieve, featuring high adsorption capacity, strong compression resistance, and long service life.

3. Reliable fail-safe system, equipped with fault alarm and automatic startup functions to ensure safe system operation.

4. More economical than other oxygen supply methods, PSA process is a simple oxygen production method using air as the raw material, with energy consumption limited to the electricity used by the air compressor. It offers low operating costs, low energy consumption, and high efficiency.

5. Integrated mechanical-electrical-instrumentation design for automated operation, using imported PLC for fully automatic control. Oxygen flow, pressure, and purity are adjustable and continuously displayed. Pressure, flow, and purity alarms can be set, and remote automatic control and detection measurement are achievable, enabling truly integrated operation. The advanced control system simplifies operation, allowing for unattended operation and remote control, with real-time monitoring of various working conditions, ensuring stable gas purity and flow.

6. Equipped with high-quality components. Key components such as pneumatic valves and solenoid pilot valves use imported configurations, ensuring reliable operation, fast switching speed, service life of over a million cycles, low failure rate, easy maintenance, and low maintenance costs.

7. Continuous oxygen content display and automatic alarm system for exceeding limits, monitoring oxygen purity online to ensure stable required oxygen purity.

8. Advanced filling technology ensures equipment service life, zeolite molecular sieve is filled using the "blizzard" method, ensuring uniform distribution without dead corners and reducing pulverization. The adsorption tower uses a multi-stage airflow distribution device and an automatic balancing compression device, keeping the zeolite molecular sieve adsorption performance in a compressed state, preventing fluidization during adsorption, and effectively extending the service life of the zeolite molecular sieve.

9. Automatic discharge system for non-compliant oxygen, automatically discharging low-purity oxygen during startup and supplying gas only after reaching the standard.

10. Ideal purity selection range, oxygen purity is easily adjustable, and can be set anywhere between21% and93±2% according to user requirements.

11. Unique cyclic switching process of the system, reducing valve wear, extending equipment service life, and lowering maintenance costs.

12. Free debugging and lifetime maintenance. Strong technical expertise and high-quality after-sales service provide continuous technical support, ensuring worry-free operation for users.