The PSA oxygen cylinder filling system utilizes Pressure Swing Adsulation (PSA) technology to produce oxygen and fill it into cylinders. While its core is similar to a standard PSA oxygen generation system, it incorporates additional components such as an oxygen booster, a filling manifold, and pressure sensors. These additions enable the system to pressurize the produced oxygen to the required filling pressure and to continuously monitor cylinder pressure throughout the filling process, ensuring both safety and accuracy.
The working principle involves the following sequential steps and components:
● Air Compression: An air compressor continuously supplies air to the system. The compressed air reaches a pressure sufficient for the subsequent PSA process.
● Air Purification: The compressed air passes through a filtration unit, which removes impurities, moisture, and oil, providing clean feed air for oxygen production.
● Oxygen Generation: Using PSA technology, the system employs zeolite molecular sieves to selectively adsorb nitrogen from the compressed air. This separates and enriches the oxygen, producing a stream of high-purity oxygen.
● Oxygen Boosting: The high-purity oxygen is then directed to an oxygen-specific booster compressor, which increases its pressure to the level required for cylinder filling, typically 150 Bar or higher.
● Oxygen Filling: Once a cylinder is connected to the filling manifold, the corresponding valve opens. The pressurized oxygen automatically flows into the cylinder. The system monitors the pressure in real-time and automatically terminates the filling process once the preset pressure is reached.
In summary, the PSA oxygen cylinder filling system integrates a series of coordinated components to complete the entire process from air compression to high-pressure cylinder filling. It reliably delivers high-purity, high-pressure oxygen for various applications.
