COMPOSITE FILTER CARTRIDGE, COMPOSITE FILTER CARTRIDGE UNIT FOR A WATER PURIFIER AND WATER PURIFIER Russian patent published in 2019 - IPC B01D27/00 B01D29/11 C02F1/00 

FIELD: water and air purification technology.

SUBSTANCE: composite filter cartridge (100), composite filtration cartridge unit for a water purifier and water purifier are disclosed. Composite filtration cartridge (100) comprises pre-treatment filter cartridge (110), fine filtration cartridge (120) and filter cartridge with activated carbon (130) arranged in series from the outside to the inside. Filtering cartridge for fine filtration (120) comprises first water collection pipe (121) and fine filtration membrane (122). Filter cartridge with activated carbon (130) comprises second water collecting pipe (131), outer circumferential wall of the second water collection pipe, excluding its lower end, and an inner peripheral wall of the first water collection pipe, located at a distance from each other; and activated carbon (132), wherein lower ends of activated carbon (132) and second water collection pipe (131) are sealed. Outlet for water (132a) is made in activated carbon and passes into the activated carbon in the axial direction, and upper end of water outlet hole (132a) is closed.

EFFECT: reduced labor input of filter cartridge replacement, high rate of water flow.

10 cl, 3 dwg