FIELD: creation of vacuum. SUBSTANCE: plant is provided with condenser, jet pump and additional vacuum-building device including final-stage liquid-gas ejector, outlet separator, additional pump and additional condenser. Evacuated medium inlet of jet pump is connected to separator and its outlet is connected to pump inlet; ejecting medium inlet is connected to pump outlet. Inlet of condenser is connected to outlet of ejector and its outlet is connected to separator. Gas inlet of final-stage ejector is connected to compressed gas discharge main; liquid inlet is connected to outlet of additional pump and outlet is connected to inlet of additional condenser. Outlet separator is connected to outlet of additional condenser and to inlet of additional pump. EFFECT: enhanced reliability of operation. 3 cl, 1 dwg
