Working principle of air separation unit heat exchanger

Working principle of heat exchanger of air separation unit: the heat exchanger is the heat exchange structure between multiple streams in the air separation unit, which is multi-layer plate fin type. The material flow between adjacent channels is used for good heat exchange through fins. The compressed air which is adsorbed by molecular sieve to remove water and carbon dioxide is cooled, and the reflux gas (liquid) is heated to normal temperature here.

Faq of Working principle of air separation unit heat exchanger

Precautions for equipment installation in cold box of air separation unit

1. Before connecting the pipe orifice of each container, clean white cloth shall be used to tie the orifice to prevent grease and dirt from entering. 2. When welding in the cold box and in the condensing evaporator, it is strictly forbidden for flame or arc to touch the surface of vessels and pipes. 3. The containers, valves, pipes and corresponding supports in the cold box, the surface of the cold box and the foundation surface shall not be stained with grease after installation, otherwise, degreasing treatment shall be carried out.

Mar 12, 2026