Provide the required pressure for the process, and the air separation equipment separates oxygen, nitrogen, and other components from the air through low-temperature distillation. This process needs to be carried out in a high-pressure environment. The air compression system compresses ambient air to 0.5-1.0 MPa (medium pressure process) or higher pressure (high pressure process), providing necessary pressure conditions for subsequent cooling, liquefaction, and distillation. The increase in compressed air density leads to an increase in the number of gas molecules per unit volume, which can enhance the processing capacity of the distillation tower and optimize the separation efficiency.
Drive gas circulation and transportation, using compressed air as a power source to promote the circulation of air between equipment such as pre cooling systems, purification systems, heat exchangers, and distillation towers.
Optimizing thermodynamic performance, the heat generated during the air compression process can be recovered through an intercooler, which is used to preheat the raw air or other process links entering the system, improving energy utilization efficiency.
To ensure system stability and safety, the air compression system needs to be equipped with safety devices such as surge protection, pressure regulation, and temperature monitoring to ensure stable operation of the equipment under variable operating conditions.
To meet different process requirements, air separation equipment can choose between internal compression or external compression processes based on product specifications (such as gas/liquid, purity requirements). The air compression system needs to adjust the compression stage, cooling method, and driving method according to the process route to meet diversified production needs.
