Large air separation unit heat exchanger head improvement

With the continuous development of air separation plant manufacturing technology and the popularization and application of new equipment and process, the process of air separation plant has become increasingly mature and gradually reached the international level. The large-scale air separation plant is bound to bring a high increase in energy consumption. Energy saving and consumption reduction of air separation plant through advanced technology and equipment has become an important means for large-scale air separation users to reduce the operating costs of air separation plants and improve economic benefits.

If the air temperature in the small air separation unit expander is lower than the liquefaction temperature corresponding to the local pressure, part of the gas will liquefy and droplets will appear in the expander. However, the rotating speed of the working wheel of the turbo expander is very high, and the droplet impact on the impeller will cause the impeller surface wear. The droplets may also be thrown to the gap ...