Air separation units manufacturer

When the output pressure of turbine air compressor is constant, when the flow rate decreases to a certain value, surge will occur. Therefore, it is necessary to control the flow rate of the turbine air compressor and prevent its flow value from entering the surge zone. However, when the system resistance increases, the flow rate will surely decrease, which makes it possible for the flow value to enter the surge zone. Therefore, the common solution is to add a bypass valve from the outlet to the inlet or vent. When the turbine air compressor is normal, the valve is closed. The flow rate is reduced to a certain value, and then the flow through the turbine air compressor is increased.

The lower and upper columns are the main equipment in the distillation system of cryogenic oxygen air separation plant. The lower column and the upper column separate the components of the mixture gas into different components with the required purity by using the different boiling points. The upper and lower columns are of cylindrical structure. The lower column is equipped with multi-layer sieve plates, and the sieve plate is equipped with overflow bucket. There is an overflow baffle with dense holes. The upper column is equipped with regular packing and liquid distributor. In the distillation process of the lower column, the liquid flows through each sieve plate one by one from top to bottom. Due to the effect of overflow weir, a certain height of liquid level is created on the pedal. When the gas passes through the small hole of sieve plate from bottom to top, it contacts with the liquid and produces bubbles, which increases the gas-liquid contact area and makes the heat and mass e