FIELD: process engineering.
SUBSTANCE: invention may be used in chemical and petrochemical industries. Proposed unit comprises moisture separator 1 arranged between inlet pipeline 2 and active nozzle 3 of ejector 4 with its outlet communicated with inlet of vortex tube 5. Said inlet with hot gas flow 6 communicates via heat exchanger 7 with passive nozzle 8 of ejector 4. Vortex tube cold gas outlet 9 is communicated successively with two parallel moisture separators 10 and 11, heat exchanger 7 and outlet pipeline 12. Moisture separators 10 and 11 incorporate pressure difference meters 13 and 14. Shut-off devices 15, 16, 17 and 18 are arranged inlets of moisture separators 10 and 11. Shut-off devices 19, 20, 21 and 22 are arranged at outlets of moisture separators 10 and 11.
EFFECT: reduced gas drying depth due to entire gas flow cooling and reduced drying temperature in defrosting of moisture separators.
2 cl, 1 dwg
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