The role of the nitrogen water pre-cooler in liquid air separation units

The nitrogen water pre-cooler is a room temperature heat exchanger, installed outside the holding tank. It generally has two roles. One is to use the unsaturated degree of dirty nitrogen to cool the water, in the process air by water cooling, so that both the temperature of the air and the moisture content of the air can be reduced. The other role is in the air-cooled tower, the air and water contact, you can wash the air, to further remove the dust in the air and dissolve part of the impurities in the air.