Answer: In the precooler, hot and humid air flows into the evaporator along the shell side, and the cold and dry air from the evaporator is discharged through the precooler tube. After the compressed air passes through the precooler and evaporator, a pressure drop will occur. The pressure of the upstream hot and humid air is higher than that of the downstream cold and dry air. If the copper tube ruptures, the hot and humid compressed air with high pressure and high water content will directly enter the cold and dry air pipeline from the rupture point and condense in the pipe. The condensed water produced will be discharged outside the machine along a shortcut, resulting in the phenomenon of exhaust water.
