FIELD: heat power engineering. SUBSTANCE: vortex tube 7 with hot and cold air branch pipes is arranged in condenser 1 of steam turbine directly at outlet 5 of outlet chamber 4 of condenser 1 in its top portion perpendicularly to axis of drain pipe line 3. Cooler 15 is mounted in vertical portion 14 of steam-and-air mixture suction pipe line 13 of condenser 1. Cooler 15 is connected at inlet with cold air branch pipe of vortex tube 7; cooler air outlet is connected with jet apparatus 10. EFFECT: enhanced efficiency of cleaning of condenser tubes, formation of higher vacuum in steam space of condenser and reduced thermal losses in the cycle of steam turbine plant. 2 dwg
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