BALLAST SYSTEM

摘要

PURPOSE: A ballast system is provided to facilitate the stable installation of an air vent by forming a vent box on a ballast tank. CONSTITUTION: A ballast system comprises a vent box(20) and a first air vent(13). The vent box is connected to inside a first ballast tank(11a) to transfer air to a second ballast tank(11b). The second ballast tank is adjacent to one side of a first ballast tank. The first air vent is connected to the second ballast tank through a vent box. The first air vent is expended from the top of the vent box to a top deck(16) through an empty space of the partition wall.