AERATION DEVICE, USE THEREOF, AND WATER PURIFICATION INSTALLATION WITH SUCH AERATION DEVICE

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to an aerator for water aeration. Aerator comprise distribution system (4) for distributing air below water surface and compressor (2) with an air inlet and at least one air outlet (23), Compressor (2) is configured to be placed below water surface by this compressor (2) being provided with a housing that prevents infiltration of water into compressor (2). Infiltration of water at air inlet is prevented by intake pipe (3) being provided, of which one open end is above water surface and other open end has a watertight connection to compressor (2). Infiltration of water at air outlet (23) is prevented because distribution system (4) has a watertight connection to air outlet (23) and, due to its nature or by at least one valve, can hold back water. Housing is in thermal contact with water to cool compressor (2), wherein compressor (2) is a centrifugal compressor that comprises impeller (21) that is driven by shaft (17) that is mounted on air bearings (24), magnetic bearings or both.;EFFECT: technical result is high efficiency of aeration at minimum power losses.;14 cl, 5 dwg