Three-Stage Water Filtration Device

摘要

A three-stage water filtration device includes a mounting box, a compound filter cartridge, a RO filter cartridge, a booster pump and an active carbon filter cartridge. Water to be filtered sequentially goes through an inlet of the compound filter cartridge, an inlet and an outlet of the booster pump, an inlet and a filtered water outlet of the RO filter cartridge, an inlet and a filtered water outlet of the active carbon filter cartridge, and a filtered water outlet on the mounting box to get the water filtered. Waste water generated in the RO filter cartridge is drained to sequentially flows through a waste water outlet of the RO filter cartridge and a waste water outlet on the mounting box. Given the foregoing structure, the three-stage water filtration device is compact in size, convenient for assembly and good in filtering effect.

主权项

1. A three-stage water filtration device including:
a mounting box being hollow and having a bottom portion formed on a bottom of the mounting box and two lateral portions; a compound filter cartridge mounted through the bottom portion of the mounting box and having: a compound filtration inlet serving for water entering the compound filter cartridge to flow therein; and a compound filtration outlet serving for water filtered by the compound filter cartridge to exit therefrom; a booster pump mounted through the bottom portion of the compound filter cartridge, boosting pressure of water therein to a specific pressure, and having: a pump inlet connected with the compound filtration outlet of the compound filter cartridge through a tube for the water filtered by the compound filter cartridge to flow therein; and a pump outlet serving for the water with the boosted pressure to exit therefrom; a RO (Reverse Osmosis) filter cartridge mounted through the bottom portion of the mounting box and having: an RO water inlet connected to the pump outlet of the booster pump through a filtered water pipeline for the water with the pressure boosted by the booster pump to flow therein; an RO filtered water outlet serving for water filtered by the RO filter cartridge to exit therefrom; and an RO waste water outlet connected to a waste water outlet formed on the mounting box through the tube for waste water generated by the RO filter cartridge to exit therefrom and flow in the waste water outlet; and an active carbon filter cartridge mounted through the bottom of the mounting box and having: an active carbon filtration inlet connected to the RO filtered water outlet through a filtered water pipeline for the water filtered by the RO filter cartridge to flow therein; and an active carbon filtration outlet connected to a filtered water outlet formed on the mounting box for water filtered by the active carbon filter cartridge to exit therefrom and flow in the filtered water outlet.