The present invention relates to a filter unit having a stirring means for preventing precipitation by preventing a sedimentation phenomenon from occurring in a water tank by allowing a part of a fluid to be pumped to be stirred to thereby stir the fluid in the water tank. A pump for pumping the fluid contained in the reservoir An injector connected to the pump through a fluid discharge pipe to inject fluid pumped through the pump A cylindrical frame body positioned within the water reservoir and maintaining a shape in which a plurality of through holes are formed on an outer circumferential surface thereof A filter installed on an outer circumferential surface of the frame body to block the inflow of foreign matter A screening panel type screening protection member installed outside the frame body on which the screening screen is installed to protect the screening screen A fluid return pipe branched from the discharge end of the pump to return part of the fluid pumped through the pump back to the reservoir First and second open / close valves respectively provided on the fluid discharge pipe and the fluid return pipe for interrupting discharge or return of the pumped fluid through the pump A central control unit for controlling pumping operation of the pump and opening and closing operations of the first and second open / close valves And an agitator tube connected to the discharge end of the fluid return tube fixed to the frame body and injecting the return fluid radiated through the fluid return tube radially around the frame body to agitate the fluid in the water reservoir.본 고안은 펌핑되는 유체 중 일부를 반환시켜 이를 통해 저수조 내의 유체를 교반시켜줌으로써 저수조내에서 침전현상이 발생하지 않도록 한 침전방지용 교반수단이 구비되는 필터유닛에 관한 것으로, 유체가 수용된 저수조 저수조에 수용된 유체를 펌핑하는 펌프 펌프와 유체 배출관을 통해 연결되어 펌프를 통해 펌핑된 유체를 분사하는 분사기 저수조내에 위치되며 외주면에 다수의 관통구가 형성된 형태를 유지시키는 원통형 프레임 몸체 프레임 몸체의 외주면에 설치되어 이물질의 유입을 차단하는 거름망 거름망이 설치되는 프레임 몸체의 외측에 설치되어 거름망을 보호하는 타공판 형태의 거름망 보호부재 펌프의 배출단부로부터 분지되어 펌프를 통해 펌핑된 유체 중 일부를 다시 저수조로 반환시키는 유체 반환관 유체 배출관과 유체 반환관
