VPSA (Vacuum Pressure Swing Adsorption) oxygen generator is the innovation of traditional PSA (pressure swing adsorption) oxygen production technology. It works by adsorbing nitrogen under pressure to get oxygen, and then discharging the nitrogen through vacuum desorption.
The composition of VPSA (Vacuum Pressure Swing Adsorption) oxygen generator usually includes:
1. Air handling unit: involves primary air filtration, air compression, cooling, water removal.
2. Nitrogen and oxygen separation unit (oxygen generator) : through the adsorption tower molecular sieve to complete the separation of nitrogen and oxygen, to obtain oxygen
3. Nitrogen discharge device: vacuum suction to discharge nitrogen.
4. Oxygen treatment unit: deodorize and sterilize the obtained oxygen, and then pressurize the oxygen directly to the user for use or storage in the oxygen tank.
5. Intelligent control system: monitor, record and analyze various operating parameters of the entire system. It also provides automatic adjustment, automatic exception diagnosis and alarm notification, maintenance reminders and message sending.
Compared with PSA technology, VPSA does not require pressure vessels and oil treatment systems, making its overall structural design more scientific and reasonable, and improving the reliability of the equipment. It is easy to save energy, maintain and extend the service life of the equipment.
Compared with PSA oxygen generator (molecular sieve Swing Adsorption), VPSA oxygen generator (Vacuum Pressure Swing Adsorption) adds a vacuum device and uses oil-free smart components as an air source. In summary, the VPSA designed by Union Healthcare offers 10 significant advantages:
1. Energy saving: The system operates under low pressure to reduce energy consumption, and the simple structure further reduces energy loss. This makes VPSA very energy efficient.
2. Quick installation: Fewer parts, integrated and modular design, no pressure vessel, allowing for relatively quick and easy installation.
3. Low pressure operation: the air pressure is lower than 0.1MPa, and the molecular sieve adsorption pressure is also lower than 0.1MPa (about one-tenth of the traditional PSA pressure). This low-pressure environment minimizes the risk of molecular sieve crushing.
4. Oil-free oxygen production: The compressed air obtained is oil-free, preventing molecular sieve oil pollution. It also saves maintenance costs from oil treatment.
5. Extend the life of molecular sieve: the life of molecular sieve is affected by water, oil and pressure. VPSA addresses these three factors, reducing the risk of sieving, oil contamination and water softening failure of the molecular sieve.
6. No pressure vessel required: This makes operation and management easier and safer.
7. Environmental protection: The entire system does not require oil treatment system, oxygen is not polluted by oil, and the final product is oil-free, ensuring safe and clean oxygen use. This also contributes to environmental sustainability.
8. Low use cost: low energy consumption in system operation, and 40% reduction in unit oxygen production cost. Management costs reduced by 50%. Annual maintenance costs can be saved by more than 50%.
9. Simplify construction and reduce maintenance: VPSA does not require a special freeze dryer and multistage oil filter. The system structure is simplified, the energy consumption is reduced, and the maintenance cost is reduced.
10. Highly intelligent: The system can automatically adjust the operating parameters according to the environmental conditions, working frequency and use habits. It can also predict and handle anomalies and maintenance needs, ensuring equipment is operating at peak efficiency. This reduces the cost and complexity of hospital administration and ensures efficiency, longevity and safety.
Together, these features help to improve the energy saving, efficiency, reliability and sustainability of VPSA oxygen generators.