After the air compressor compressed and pre-cooled air, and then by the purification system to remove water, carbon dioxide and other harmful impurities, into the main heat exchanger cooling part directly into the lower part of the distillation tower. Another part of the liquefier in the liquefied also into the lower tower of liquid air separation plant, in the lower tower in the initial distillation, in turn to obtain high purity nitrogen with liquid nitrogen, dirty liquid nitrogen, poor liquid air, oxygen-rich liquid air, oxygen-rich liquid air, poor liquid air, dirty liquid nitrogen, after the cooler subcooling throttling to the upper tower, to participate in the distillation of the upper tower. Part of the nitrogen at the top of the lower tower is condensed into liquid nitrogen in the condensing evaporator, part of the liquid nitrogen is used as the reflux liquid in the lower tower and part of the liquid nitrogen is also throttled to the upper tower for further distillation after being sub-cooled by the cooler.
Dear Air's air compressor system encounters cold technology quality to meet the liquid air separation plant production .
