BALLASTING DEVICE HAVING A FREEZING PREVENTION FUNCTION USING AN ULTRASOUND AND A VESSEL INCLUDING THEREOF, CAPABLE OF BEING CONFIGURED TO PREVENT A FREEZING OF A BALLAST WATER EFFECTIVELY

摘要

PURPOSE: A ballasting device for having a freezing prevention function using an ultrasound and a vessel including thereof are provided to prevent water inside a ballast tank from being frozen effectively by launching an ultrasound to an underwater inside the ballast tank.;CONSTITUTION: A ballasting device (10) having a freezing prevention function using an ultrasound comprises a ballast tank (110), an ultrasonic generator (120), and a piezoelectric element height controller (130). The ultrasonic generator comprises a piezoelectric element positioned in an underwater inside the ballast tank, and launches an ultrasound to an underwater inside the ballast tank. The piezoelectric element height controller controls a height of the piezoelectric element according to a water height inside the ballast tank. The piezoelectric element height controller supports the piezoelectric element, and comprises a floater which floats on water inside the ballast tank.;COPYRIGHT KIPO 2013