FILTER FOR CLEANING PETROLEUM PRODUCTS Russian patent published in 2001 - IPC

FIELD: cleaning petroleum products by filtering at alternate regeneration of filter elements. SUBSTANCE: proposed filter has housing with lower chamber, main chamber and upper chamber. Main and upper chambers are provided with stacks of disk filter elements; filter elements are separated in sectors and are located on permeable casing having central chambers through which two-section distributor passes. This distributor is provided with longitudinal passages for alternate flushing of sectors. Flow flushing one column of sector stack in countercurrent enters next chamber where it is filtered by external surface of second stack. Flow of filtered product from main chamber flushes external side of second stack also in countercurrent. Contaminants and water are discharge from upper chamber. EFFECT: enhanced operational efficiency of filter. 2 cl, 4 dwg