FIELD: cleaning of filters from contamination. SUBSTANCE: method is intended for cleaning of filter surface and preventing its aeration. It relates to filters with three-chamber housing and filtering passages in middle chamber connected with branching of filtrate, distributor interacting with inlets of passages and having line for branching away of fractions trapped by filter, and also with delivery of medium being cleaned to one of end chambers. By means of distributor, inlets of passages are alternately connected in different combinations with end chambers, thus organizing tangential filtration in them and washing away trapped fractions, or closing inlet from medium liquid delivery chamber at open second inlet for organizing cleaning of part of liquid remaining after tangential filtration of part of liquid, or connecting inlet at side of delivery of medium being filtered with line for branching away of trapped fractions at closed second inlet for washing of channels by counterflow of filtrate liquid. Gas and impurities collected in second end chamber are branched away from filter. EFFECT: high efficiency. 4 dwg
