AIR LIFT PLANT INSTALLATION Russian patent published in 2001 - IPC

FIELD: pump engineering, air lift installation for lifting the fluids containing solid particles. SUBSTANCE: air lift installation contains mixer provided with suction pipe-line connected with inclined lifting pipe and inclined air duct at an angle not less than 100 deg to the mixer axis. The air duct is inside the lifting pipe and provided with injector on its end. The injector is provided with expanding nozzles which are tangentially arranged by layers form top to bottom of the injector. The internal surface of the nozzles are provided with spiral grooves. The mixer is made of hyperboloid of revolution of the first type and cycloidal guides. The bottom part of the mixer is overturned truncated cone provided with bristle made of grinder. The cone is connected to the suction pipe-line made of conical nozzles provided with internal curvilinear helix grooves. EFFECT: enhanced efficiency of the air lift installation via more total mixing of the compressed air with the working fluid and reducing pressure loss of the installation. 3 dwg