Key Considerations for the Startup Process of Air Separation Units

During the startup of an air separation unit, the monitoring and adjustment of various parameters are of critical importance. Airflow must be monitored in real time and adjusted appropriately based on the equipment load; generally, airflow fluctuations should be kept within a range of ±5%. Close attention must also be paid to the equipment's pressure and temperature parameters; should any anomalies arise, the underlying causes must be analyzed immediately, and appropriate corrective measures taken.

 

During the process, a comprehensive inspection of the equipment's operational status is also required. Checks should be conducted to detect any abnormal vibrations or noises, as well as any leaks at connection points. If any anomalies are discovered, the equipment must be shut down immediately for troubleshooting; startup may only resume once the fault has been resolved.

 

Furthermore, the startup of an air separation unit is a gradual, step-by-step process that must not be rushed. At each stage, it is essential to ensure that the equipment is operating stably before proceeding to the next step. For instance, after the fractionation column has been started, it must be allowed to operate stably for 2 to 4 hours; product gas extraction should commence only after the internal operating conditions of the column have stabilized.