FLUIDIZED FILTER TANK OF SEA WATER RECIRCULATING AQUACULTURE SYSTEM

摘要

A fluidized bed filter tank having a water current conversion film of a sweater circulating filter system is provided to increase dissolved oxygen in the filter tank and maximize filtration efficiency by smoothly guiding flows of seawater and air within the filter tank, converting directions of the flows thereof, and preventing clogging of pipes due to residues in the filter tank. A fluidized bed filter tank of a seawater circulating filter system biologically purifies the seawater using a filter media(103) while circulating the seawater and air by forming an internal space of the filter tank with a cylindrical wall body(101) having its top opened, connecting a seawater injection pipe(300) and an air injection pipe(400) through the bottom of the wall body, and injecting seawater and air into the filter tank. A fluidized bed filter tank(100) having a water current conversion film of the sweater circulating filter system comprises: an induction pipe(110) which is vertically installed in the internal space of the filter tank, and in which a water current conversion film(111) is formed to convert the direction of a fluid while inducing seawater injected from the bottom of the wall body to an upper part of the filter tank; and a plurality of induction pipe supports(120) of which one ends are fixedly attached to the outer peripheral surface of the induction pipe, and of which the other ends are fixedly attached to the inner peripheral surface of the wall body to support the induction pipe such that the induction pipe is located in the internal space of the filter tank.