DEVICE FOR PURIFYING LIQUID Russian patent published in 2017 - IPC C02F1/28 B01D24/10 

FIELD: chemistry.

SUBSTANCE: cleaning of fluid device includes a housing comprising the upper and lower filtering zone placed therein the filter medium, means for changing the flow of the cleaning fluid direction, the air outlet means for air evacuation from a lower filtration zone and having an element for the air outlet, located in the upper wall of the air deflecting means. The apparatus is adapted to discharge air from the bottom of the filtration zone via the upflow fluid being treated in the beginning of the filtering process during filling of the cleaning fluid devices. Means for changing the flow of the cleaning fluid destinations, comprising a filter medium, both a lower filtration zone formed chamber of the filtration medium and an inlet disposed in the upper or upper and lower parts of the side wall of the chamber, and a vertically oriented inner annular space being in fluid communication with the chamber through the inlets. The annular space formed by the inner side wall of the housing and the outer side wall of the chamber tapers towards the bottom of the enclosure for cleaning fluid, comprises a filter medium and serves for the passage of cleaning fluid from the upper zone into the filtering chamber through inlet openings in the radial direction.

EFFECT: increase in the filtration rate and increase of extent of cleaning fluid.

16 cl, 4 dwg