Venturi tube apparatus and ballast water treatment apparatus using the venturi tube apparatus

摘要

PROBLEM TO BE SOLVED: To provide a venturi tube device which can materialize ballast water treatment equipment requiring no large space as the installation place and, when discharging ballast water, can prevent an adverse influence to surrounding environment.;SOLUTION: The venturi tube device comprises: a plurality of venturi tubes 23 which are arranged in parallel to a flow path of treatment water and have injection ports 30 respectively disposed on throat parts 24; distribution pipes 35 for receiving the supply of liquid chemicals and distributing the liquid chemicals to the plurality of venturi tubes 23; and injection branch pipes 37 which are branched from the distribution pipes 35 and are connected to the injection ports 30 of the plurality of venturi tubes 23.;COPYRIGHT: (C)2009,JPO&INPIT