KR-20260063977-A - Ballast water treatment system and ballast water treatment method using the same

KR20260063977AKR 20260063977 AKR20260063977 AKR 20260063977AKR-20260063977-A

Abstract

The present invention provides a ballast water treatment system and a ballast water treatment method using the same, characterized by comprising: a filter unit for filtering ballast water supplied from a ballast water pump that pressurizes ballast water; an electrolysis unit for generating an oxidizing agent by electrolyzing seawater supplied from the ballast water pump; a bypass channel unit for forming a bypass path for ballast water to bypass the filter unit; a sensor unit for measuring the load rate of the filter unit; and a control unit for receiving information regarding the load rate of the filter unit from the sensor unit and determining the opening or closing of the bypass path.

Inventors

김상준
이태영
백은성

Assignees

에이치디한국조선해양 주식회사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (15)

A filter unit that filters ballast water supplied from a ballast water pump that pressurizes ballast water; An electrolysis unit that generates an oxidizing agent by electrolyzing seawater supplied from the above-mentioned ballast water pump; A bypass channel section forming a bypass path for the ballast water to bypass the above-mentioned filter section; A sensor unit for measuring the load rate of the filter unit above; and A balance water treatment system characterized by including: a control unit that receives information regarding the load rate of the filter unit from the sensor unit and determines the opening or closing of the bypass path.
In paragraph 1, A equilibrium water treatment system characterized in that the oxidizing agent is sodium hypochlorite or hypochlorous acid.
In paragraph 1, A ballast water treatment system characterized by further including a tank section connected to the filter section, the electrolysis section, and the bypass section, and storing and discharging ballast water.
In paragraph 3, A ballast water treatment system characterized by further including a neutralization unit for neutralizing ballast water discharged out of the tank section.
In paragraph 1, A ballast water treatment system characterized by further including a liquefied carbon dioxide supply unit that supplies liquefied carbon dioxide to ballast water.
In paragraph 3, A ballast water treatment system characterized by further including a residual oxidant measuring unit for measuring residual oxidant in ballast water discharged out of the tank section.
In paragraph 1, A balance water treatment system characterized by the sensor unit measuring the differential pressure between the front and rear ends of the filter unit.
In paragraph 1, A equilibrium water treatment system characterized by the sensor unit measuring the turbidity of the filter unit and measuring the load rate of the filter unit.
In paragraph 1, A ballast water treatment system further comprising: a seawater supply pump that receives seawater from the ballast water pump and delivers it to the electrolysis unit.
In paragraph 1, A ballast water treatment system characterized by further including a plurality of valves capable of changing the flow path of the ballast water.
A step of supplying seawater flowing in from overboard as ballast water; A step of generating an oxidizing agent by electrolyzing seawater flowing in from outside the vessel; A step of filtering the above equilibrium water through a filter unit; A step of measuring the load rate of the filter unit; and A method for treating equilibrium water, characterized by including the step of a control unit controlling the opening and closing of a flow path formed to bypass the filter unit based on information regarding the load rate of the filter unit.
In Paragraph 11, A method for treating equilibrium water, further comprising the step of supplying liquefied carbon dioxide to the equilibrium water.
In Paragraph 11, A ballast water treatment method characterized by further including the step of discharging ballast water overboard.
In Paragraph 13, A method for treating equilibrium water characterized by further including the step of measuring residual oxidizing agents in discharged equilibrium water.
In Paragraph 13, A method for treating ballast water, further comprising the step of neutralizing ballast water discharged from the above tank section.

Description

Ballast water treatment system and ballast water treatment method using the same The present invention relates to a ballast water treatment system and a ballast water treatment method using the same. Generally, when operating a ship, ballast water is stored in the tanks to maintain the balance of the hull, and the tanks are filled or discharged depending on the cargo loading situation. Since ships navigate the ocean to destinations in various countries, there is a concern that they may contaminate the ocean due to microorganisms contained in the ballast water. In order to prevent marine pollution caused by ballast water, when filling the tanks of a ship with ballast water, sodium hypochlorite or hypochlorous acid generated by the electrolysis of seawater is supplied to the tanks along with the ballast water to sterilize it, and when discharging the ballast water from the tanks into the ocean, the ballast water is neutralized before discharge, thereby preventing marine pollution caused by ballast water. The background technology of the present invention is disclosed in Korean Published Patent Application No. 10-2017-0052027 (published May 12, 2017; Title of Invention: Ship Ballast Water Treatment System). FIG. 1 is a drawing illustrating a ship on which a ballast water treatment system according to one embodiment of the present invention is installed. FIG. 2 is a drawing illustrating a ballast water treatment system according to one embodiment of the present invention. FIG. 3 is a block diagram illustrating a control unit according to an embodiment of the present invention. FIG. 4 is a drawing illustrating the state in which ballast water passes through a filter section according to an embodiment of the present invention and is stored in a tank section. FIG. 5 is a diagram illustrating a state in which ballast water is guided along a bypass channel section and stored in a tank section according to one embodiment of the present invention. Figure 6 is a drawing illustrating the state in which ballast water from the tank section is discharged overboard. FIG. 7 is a flowchart illustrating a equilibrium water treatment method according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted. In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the following embodiments are not necessarily limited to those illustrated. FIG. 1 is a drawing illustrating a ship on which a ballast water treatment system according to an embodiment of the present invention is installed. FIG. 2 is a drawing illustrating a ballast water treatment system according to an embodiment of the present invention. FIG. 3 is a block diagram illustrating a control unit according to an embodiment of the present invention. FIG. 4 is a drawing illustrating a state in which ballast water passes through a filter unit according to an embodiment of the present invention and is stored in a tank unit. FIG. 5 is a drawing illustrating a state in which ballast water is guided along a bypass channel according to an embodiment of the present invention and is stored in a tank unit. FIG. 6 is a drawing illustrating a state in which ballast water from the tank unit is discharged overboard. Referring to FIGS. 1 to 3, a ballast water treatment system (1) according to one embodiment of the present invention may include a ballast water pump (100), a filter unit (200), an el