WATER TANK EQUIPPED WITH SCREW-NOZZLE

摘要

PURPOSE: A water tank including a screw nozzle is provided to effectively remove radon by installing screw wings on a nozzle for spraying water by being submerged in the water tank. CONSTITUTION: A water tank(100) comprises the following: a space unit divided into cylindrical wall bodies installed on the concentric circle with the constant interval to have more than two divided spaces; a water inlet pipe(200) vertically installed inside the divided spaces of the cylindrical wall bodies; a screw nozzle(300) branched from the water inlet pipe, with an opening facing the wall bodies by forming the acute angle with the water inlet pipe; an overflow prevention pipe(400) arranged in the lower height than the water inlet pipe; a water outlet pipe(500) protruded from the bottom of the water tank; and screw wings(320) protruded from the inner circumference of a circular pipe(310) in a spiral board shape.