ОСОБЕННОСТИ НЕРАСЧЁТНЫХ РЕЖИМОВ РАБОТЫ ВОЗДУШНОГО КОНДЕНСАТОРА КРУПНОТОННАЖНОЙ АММИАЧНОЙ ХОЛОДИЛЬНОЙ УСТАНОВКИ

Air cooling units are widely used in the chemical industry for condensation of ammonia. Generally they are manufactured as per a special design. Air-condenser design features of a large-capacity ammonia refrigerating system and the actual performance of its work are considered. The effect of different modes of operation of fans on the efficiency of the condenser are established. Two algorithms of putting cooling air fans into operation are proposed. The first one involves their consequent putting into operation. First, all odd fans located first along the path of ammonia, and then the even ones. The second algorithm is characterized by first putting into operation even fans located second along the path of ammonia and then the odd ones. Fans are put into operation symmetrically from the center of the condenser. Analysis showed that the second algorithm of using fans is preferable. The practical application of the new algorithm will allow the fans to adjust the condenser heat load, to stabilize its performance and reduce power consumption for fan drive.