Patents Assigned to NK CO., LTD.
  • Patent number: 11383816
    Abstract: The present invention relates to a ballast water treatment system including an air compressor for compressing air; an air receiver tank for receiving the compressed air from the air compressor and storing the compressed air; an oxygen generator for generating oxygen from the air supplied from the air receiver tank; an oxygen receiver tank for storing the oxygen supplied from the oxygen generator; an ozone generator for generating ozone from the oxygen supplied from the oxygen receiver tank; a ballast water pump for pumping ballast water; an inflow line for transferring the ballast water from the ballast water pump; a ballast water tank for receiving the ballast water from the inflow line and storing the ballast water; and an ozone injector for injecting the ozone into the ballast water of the inflow line.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 12, 2022
    Assignee: NK CO., LTD.
    Inventors: Seung Je Yoon, Mi Hyun Oh, Han Gong Kim
  • Patent number: 11332396
    Abstract: The present invention relates to a method of driving a ballast water treatment system. The ballast water treatment system includes an air compressor for compressing air, an air receiver tank for storing the compressed air, an oxygen generator for generating oxygen from the air, an oxygen receiver tank for storing the oxygen, an ozone generator for generating ozone from the oxygen, a ballast water pump for pumping ballast water, an inflow line for transferring the ballast water, an ozone injector for injecting the ozone into the inflow line, and a destructor for purging the ozone. The driving method includes a step of pressing a stop button to stop the ballast water treatment system, a step of purging ozone generated in the ozone generator, and a step of stopping each device of the ballast water treatment system.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 17, 2022
    Assignee: NK CO., LTD.
    Inventors: Seung Je Yoon, Mi Hyun Oh, Han Gong Kim
  • Patent number: 10974805
    Abstract: A ballast water treatment apparatus equipped with devices for injecting bromine salt and ozone includes a ballast pipe, a ballast pump, a bromine salt injection part and an ozone processor, wherein the injection part includes a bromine salt storage tank; a bromine salt transfer pipe connected to the ballast pipe for injecting bromine salt supplied from the bromine salt storage tank into the ballast pipe; and a bromine salt injection pump in the transfer pipe for pressurizing bromine salt to be injected into the ballast pipe, and the ozone processor includes an ozone injection device for supplying ozone to the ballast pipe; a mixer in the ballast pipe for mixing ozone supplied from the ozone injection device and seawater transferred into the ballast pipe; and an ozone transfer pipe connected to the mixer of the ballast pipe for injecting ozone supplied from the ozone injection device into the ballast pipe.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: April 13, 2021
    Assignee: NK CO., LTD.
    Inventors: Sung Jin Park, Seung Je Yoon, Dong Yeon Cho, Sang Yong Kim, Tae Hyeon Park, In Dong Kim
  • Publication number: 20200339451
    Abstract: The present invention relates to a method of driving a ballast water treatment system. The ballast water treatment system includes an air compressor for compressing air, an air receiver tank for storing the compressed air, an oxygen generator for generating oxygen from the air, an oxygen receiver tank for storing the oxygen, an ozone generator for generating ozone from the oxygen, a ballast water pump for pumping ballast water, an inflow line for transferring the ballast water, an ozone injector for injecting the ozone into the inflow line, and a destructor for purging the ozone. The driving method includes a step of pressing a stop button to stop the ballast water treatment system, a step of purging ozone generated in the ozone generator, and a step of stopping each device of the ballast water treatment system.
    Type: Application
    Filed: July 13, 2018
    Publication date: October 29, 2020
    Applicant: NK CO., LTD.
    Inventors: Seung Je YOON, Mi Hyun OH, Han Gong KIM
  • Publication number: 20200317317
    Abstract: The present invention relates to a ballast water treatment system including an air compressor for compressing air; an air receiver tank for receiving the compressed air from the air compressor and storing the compressed air; an oxygen generator for generating oxygen from the air supplied from the air receiver tank; an oxygen receiver tank for storing the oxygen supplied from the oxygen generator; an ozone generator for generating ozone from the oxygen supplied from the oxygen receiver tank; a ballast water pump for pumping ballast water; an inflow line for transferring the ballast water from the ballast water pump; a ballast water tank for receiving the ballast water from the inflow line and storing the ballast water; and an ozone injector for injecting the ozone into the ballast water of the inflow line.
    Type: Application
    Filed: July 13, 2018
    Publication date: October 8, 2020
    Applicant: NK CO., LTD.
    Inventors: Seung Je YOON, Mi Hyun OH, Han Gong KIM
  • Publication number: 20170341724
    Abstract: A ballast water treatment apparatus equipped with devices for injecting bromine salt and ozone includes a ballast pipe, a ballast pump, a bromine salt injection part and an ozone processor, wherein the injection part includes a bromine salt storage tank; a bromine salt transfer pipe connected to the ballast pipe for injecting bromine salt supplied from the bromine salt storage tank into the ballast pipe; and a bromine salt injection pump in the transfer pipe for pressurizing bromine salt to be injected into the ballast pipe, and the ozone processor includes an ozone injection device for supplying ozone to the ballast pipe; a mixer in the ballast pipe for mixing ozone supplied from the ozone injection device and seawater transferred into the ballast pipe; and an ozone transfer pipe connected to the mixer of the ballast pipe for injecting ozone supplied from the ozone injection device into the ballast pipe.
    Type: Application
    Filed: November 19, 2015
    Publication date: November 30, 2017
    Applicant: NK CO., LTD.
    Inventors: Sung Jin PARK, Seung Je YOON, Dong Yeon CHO, Sang Yong KIM, Tae Hyeon PARK, In Dong KIM