COMPOSITE FILTER UNIT CARTRIDGE, COMPOSITE FILTER UNIT CARTRIDGE ASSEMBLY AND WATER PURIFICATION SYSTEM Russian patent published in 2018 - IPC C02F1/28 B01D29/11 B01D27/00 

FIELD: cleaning system.

SUBSTANCE: composite filter unit cartridge, composite filter unit cartridge assembly and water purification system is proposed. Cartridge (12) of the composite filter contains filter assembly, first end cap (124) and second end cap (125), separately located at the two axial ends of the filtering unit, and cartridge (123) of the flavor filter, located in second end cap (125). Filter assembly contains pre-treatment filter cartridge (121) and secondary filter cartridge (122). Flavor filter cartridge (123) is connected to central pipe (1221) for collecting water and the fine filter cartridge is located after it. Between cartridge (123) of the taste filter and second end cap (125) channel (a1) for concentrated water and circulation channel (a2) are formed, which are separated from each other. In cartridge (123) of the taste filter, a channel (a3) for pure water is made. Water treatment system comprises an inlet pipe, a clean water pipe, a concentrated water pipe, and a composite filter cartridge assembly. Inlet pipe is connected to the inlet for untreated water, the clean water pipe is connected to the outlet for pure water, the concentrated water pipe is connected to the outlet for concentrated water.

EFFECT: technical result: increased wear resistance, simplicity and compactness with good quality of outgoing water.

9 cl, 4 dwg