RAINWATER COLLECTION AND FILTRATION EQUIPMENT WITHOUT POWER

摘要

PURPOSE: A non-power rainwater treatment unit is provided to prevent a rainwater filtering device installed in the rear end from being overloaded and extend the replacement period of a filtering net by separating and excluding initial rainwater which contains a great deal of foreign substances. CONSTITUTION: A non-power rainwater treatment unit (1) comprises an initial rainwater exclusion device (10) and a non-power filtering device (50). The initial rainwater exclusion device comprises a rainwater pipe (11), a collecting pipe (15), and a rainwater intake pipe (12). The rainwater pipe drains rainwater collected from a rooftop or roof underground or to the surface of the earth. The collecting pipe excludes initial rainwater which flows through the inner surface (11a) of the rainwater pipe by passing the rainwater through. The collecting pipe only collects rainwater which flows through the center (11b) of the rainwater pipe. The rainwater intake pipe supplies the collected rainwater to the non-power filtering device. The non-power filtering device comprises a water turbine (53), a case (51), a wedge drum (56), and a rake (57). The water turbine rotates using rainwater discharged from the rainwater intake pipe. The case supports to the water turbine to be rotatable. The wedge drum passes rainwater through and filters adulteration included in the rainwater. The rake separates the adulteration from the surface of the wedge drum.