Cooling water cooling device of air separation device

The utility model belongs to the field of air separation devices, and particularly relates to a cooling water cooling device of an air separation device. Comprising a water cooling tower, a refrigerating machine and an air cooling tower, and cooling water in the water cooling tower flows into the air cooling tower through the refrigerating machine; the refrigerating machine comprises a low-temperature generator, a high-temperature generator, a condenser, an evaporator and an absorber, the low-temperature generator is connected with the condenser through a first steam flowing pipeline, and a second steam flowing pipeline is arranged on the high-temperature generator; the first steam flowing pipeline is connected to the outer surface of the condenser, the condenser is connected with the evaporator, an evaporator tube bundle for cooling water to flow is installed in the evaporator, and a steam recycling pipeline is arranged between the evaporator and the absorber. The utility model provides a cooling water cooli