Ballast water treatment device

Abstract

The invention provides a ballast water treatment device, the foreign matters attached to the filter can be removed, and the blockage of the filtering element can be eliminated. The ballast water treatment apparatus is provided with a filter in a housing, and is provided with: : and a lead-in port of the ballast water is introduced into the primary side of the filter, and a flow outlet enabling ballast water to flow out from the secondary side of the filter, and a connecting line which is arranged at any one of the primary side and the secondary side of the filter and is used for connecting the interior of the shell with the outside of the shell, the opening part of the connecting path is close to or in contact with the filter, the area of the opening part is smaller than the filtering area of the filter, and the ballast water treatment device further comprises a liquid medicine circulation path, the connecting path is connected with either one of the primary side and the secondary side of the filter, and the ballast water containing the liquid medicine is circulated; a pump and a control mechanism, wherein the pump is arranged in the liquid medicine circulation path; the control mechanism is used for enabling the shell to be filled with ballast water, a liquid medicine circulation path comprising a filter, a connection path and a liquid medicine circulation path is formed, and the ballast water containing the liquid medicine is circulated through the pump.

Description

technical field [0001] The present invention relates to a ballast water treatment device in which a cylindrical filter for filtering ballast water flowing into the inside and allowing it to flow outside is arranged in a casing. Background technique [0002] When a ship such as an oil tanker sails to a destination again after unloading loaded crude oil, etc., water called ballast water is generally stored in a ballast tank in order to balance the ship while sailing. Since ballast water is basically taken at the port of discharge and discharged at the port of loading, if the ballast water is discharged at a sea area different from the port of discharge, the water contained in the ballast water will be discharged to the port. Microorganisms such as plankton and bacteria may destroy the ecosystem of the sea area. In order to prevent damage to the marine environment caused by this ballast water, the International Maritime Organization (IMO) has concluded a ballast water manageme...

AI Technical Summary

Problems solved by technology

[0009] However, depending on the storage conditions after the operation of the ballast water treatment device, scale may adhere to the filter and clog the filter.

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