Overall heating in cold state

In order to remove the residual water, carbon dioxide, acetylene and other impurities to ensure the long-term stable operation of the next cycle. After the shutdown of the air separation unit, it is necessary to conduct comprehensive heating and blowing, that is, comprehensive heating in cold state. The program is shutdown, liquid discharge, standing, cold blowing, heating and system blowing. When the outlet temperature reaches normal temperature, it can be stopped.