Swirl partition type ballast water treatment device for ship

Abstract

The invention relates to a swirl partition type ballast water treatment device for a ship, in particular to a device for sterilizing treatment of ballast water in a ship ballast device. The invention aims to provide a swirl partition type ballast water treatment device with good treatment effects for a ship. The device is in a cylindrical shape, and a tunnel column sonochemical ultrasound system (1) is arranged on the top wall of a cylinder; a ballast water inlet (2) is arranged on the side wall near the top wall, and the direction of the channel of the ballast water inlet is the same as that of the tangent on the cross section of the cylinder at the ballast water inlet; the inner diameter of the middle (4) of the cylinder is smaller than the inner diameters of upper and lower parts (3,5), and a plurality of ultraviolet sterilizers (6) are arranged on the inner side wall of the middle of the cylinder; a ballast water outlet (7) is arranged in the side wall of the lower part of the cylinder, and the lower part of the cylinder is communicated with an inert gas tank (8) through a pipeline; the bottom end of the cylinder is sealed, and the upper, middle and lower parts of the cylinder are respectively an initial sterilization area, a strong sterilization area and an emergency sterilization discharge area; and the ballast water outlet is positioned in the emergency sterilization area.

Description

technical field [0001] The invention relates to a ship ballast device, in particular to a device for sterilizing ballast water in the ship ballast device. Background technique [0002] In order to maintain the stability and seaworthiness of ships in seas and lakes, ships must carry a certain amount of ballast water. Every year, nearly 1 billion tons of marine ballast water is transferred between global hub ports on the earth. This poses a serious biological invasion problem. In the ballast water management treaty adopted by the International Maritime Organization in 2004, in order to prevent microorganisms from moving and spreading through ballast water, destroying the ecosystem and endangering health, ships are required to carry treatment for killing plankton in ballast water, etc. device. According to the "International Convention on the Management of Ships' Ballast Water and Ballast Water Sediments" issued by the International Maritime Organization, 2014 and 2016 are t...

AI Technical Summary

Problems solved by technology

However, when the technologies disclosed in the above-mentioned publications are used to treat large-capacity ballast water, it is difficult to see the basis for killing microorganisms and bacteria in the ballast water from the records of the above-mentioned publications.

In addition, in the technology disclosed in Japanese Patent Laid-Open No. 2008-110276, although microorganisms and bacteria contained in ballast water can be removed in the form of magnetic flocs, it is pointed out that microorganisms that threaten the ecosystem and health , the danger of flocs formed by bacterial agglomeration

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