OPERATION OF CIRCULATING WATER COOLER OF MOLECULAR SIEVES TYPE OXYGEN PLANT

摘要

PURPOSE:To prevent H2O and CO2 from penetrating into an air separator by keeping the temp. of the circulating water of a raw material-air washing and cooling tower constant and holding the temp. of the inlet air temp. of a molecular sieves type adsorbing device at a definite temp. or lower. CONSTITUTION:A bypass 11 is provided in a primary cooler 7 cooling the circulating water 20 of a raw material-air washing and cooling tower 3 and a bypass valve 15 is controlled so that the temp. of the circulating water 21 of the inlet of a secondary cooler 8 becomes a set temp. or higher enabling the min. load operation of the secondary cooler 8.