AIR-LIFT PLANT Russian patent published in 2000 - IPC

FIELD: manufacture of pumps; air-lift plants for lifting liquids with solid inclusions; designing hydraulic transport facilities; water supply systems; water removal systems. SUBSTANCE: air-lift plant has vertical mixer with suction pipe line communicated with inclined rising pipe and inclined air line at angle no less than 100 deg relative to axis of mixer. Mixer is provided with nozzle fitted at its end; this nozzle has curvilinear helical grooves where compressed air is twisted under excessive pressure entrapping working medium through inlet branch pipe with inner curvilinear helical guides where working medium is twisted. Pipe line with risers and nozzles at the end is lowered in well from air separator. EFFECT: increased productivity due to more complete mixing of compressed air with working medium; reduced hydraulic resistance in mixer, suction pipe line and rising pipe. 2 dwg