| 摘要 |
PURPOSE: To maximize water saving by designing a double filtering system, thereby performing filtering operation over a long period of time in a small scaled second filtering system after storing backwashing water and washing water through first filtering system in a separate storage space. CONSTITUTION: The double filtering system comprises first water level control tank (10) for controlling a water level by temporarily storing water flown over a swimming pool; first filtering system (20) for filtering water drained through one side of the swimming pool to remove foreign materials, injecting various coagulants and disinfectants into the filtered water, boiling the chemical injected water to a proper temperature, circulating the boiled water into the swimming pool again, and discharging backwashed contaminants containing impurities to the outside; a filtered material storage tank (30) for temporarily storing contaminants discharged from the first filtering system; and second filtering system (40) for inputting retreated water into the water level control tank by refiltering the filtered material outputted from the filtered material storage tank, wherein the first filtering system comprises first collector (11) for removing foreign materials having a relatively large volume, first pressing pump (12), coagulant injector (13), first filter (16), heater (17), pH adjusting material injector (14) and disinfectant injector (15), and the second filtering system comprises second collector (41), second pressing pump (42) and second filter (43). |
