Patent ID: 9181109
Filing Date: 2015-11-10
Classification: B63J,C02F

Abstract:
1. A ballast water treatment system, comprising a centrifugal separator, an ultrasonic sterilizer, and an ultraviolet sterilizer, wherein: the centrifugal separator is designed to separate large-particle foreign matter from the ballast water by centrifugal separation due to a density difference of the large-particular foreign matter; the ultrasonic sterilizer is arranged at a back of the centrifugal separator, and is designed to carry out ultrasonic sterilization of the ballast water passing through the centrifugal separator; the ultrasonic sterilizer comprises a pipe that is used for sterilization of the ballast water and an ultrasonic irradiation unit that performs ultrasonic irradiation of the ballast water in the pipe; the ultraviolet sterilizer is designed to accomplish sterilization by ultraviolet irradiation of the ballast water passing through the ultrasonic sterilizer; the ultrasonic irradiation unit comprises: a first plurality of ultrasonic vibrators that generate ultrasonic vibration and a plurality of vibrating plates, each respective vibrating plate of the plurality of vibrating plates is arranged at a fore-end of each of a second plurality of ultrasonic vibrators of the first plurality of ultrasonic vibrators and is designed to transfer an ultrasonic wave generated by the second plurality of ultrasonic vibrators to the ballast water passing through the pipe; and the plurality of vibrating plates are aligned along a length direction of the pipe for sterilization, and are arranged along a circumference of the pipe for sterilization, and the second plurality of ultrasonic vibrators is arranged in a length direction of the respective vibrating plate of the plurality of vibrating plates.