Apparatus for automatically managing ballast water of ship, and operation method thereof

Abstract

The present invention relates to an apparatus for automatically managing the ballast water of a dual-hulled ship and, more specifically, to an apparatus for automatically managing the ballast water of a ship, the apparatus dividing the structure of an integrated ballast water tank into ballast water tanks of a multi-layered structure, and filling each ballast water tank with seawater, so as to perform the original function thereof of maintaining the water-line by means of the ballast water, and having a structure and a device so as to utilize the seawater, used as cooling water, residential water, water for miscellaneous use, and the like, as the seawater of the ballast water tanks, thereby integrally managing the usage of the seawater of the ship, and continuously and successively changing the seawater of the ballast water tanks while the ship is sailing.

Description

TECHNICAL FIELD[0001]The present invention relates to an apparatus for automatically managing the ballast water of a dual-hulled ship and, more specifically, to an apparatus for automatically managing the ballast water of a ship, the apparatus dividing the structure of an integrated ballast water tank into ballast water tanks of a multi-layered structure, and filling each ballast water tank with seawater, so as to perform the original function thereof of maintaining the water-line by means of the ballast water, and having a structure and a device so as to utilize the seawater, used as cooling water, residential water, water for miscellaneous use, and the like, as the seawater of the ballast water tanks, thereby integrally managing the usage of the seawater of the ship, and continuously and successively changing the seawater of the ballast water tanks while the ship is sailing.RELATED ART[0002]Since 1993, the shipbuilding industry has been booming in Korea as a requirement for the do...

AI Technical Summary

Benefits of technology

The present invention is a ballast water management system for a ship with double hull structure. It uses seawater stored in multiple ballast tanks to continuously and automatically exchange ballast water, which helps reduce energy usage and increase ship profit. The system also prevents ecosystem disturbance caused by transport-prohibited life species in the ballast water. Additionally, the system improves ship stability and reduces the possibility of sinking and insurance costs.

Problems solved by technology

Because of this, there is a risk of oil spillage from the ship and the insurance premium of the ship is high.

A ship such as a cargo ship cannot be navigated because the center of gravity of the ship is so high that the propeller is not submerged under water when the cargo is not loaded, and there is a high risk that it can be easily overturned by sea waves.

The isolation method is used when the ballast water is so polluted that it is difficult or impossible to purify.

The worldwide harbors are suffering by not only disturbance of the marine ecosystem but also propagation of pathogens, caused by the fact that more than 13 billion tons of ballast water are transported each year and about 7,000 kinds of forbidden marine living organisms are transported across ocean every day between harbors.

For example, the ecosystem disturbance that occurred near Chesapeake Bay in the US seriously damaged the sturgeon shark farm around the bay, causing a damage recovery cost of over US $1 billion per year.

It also adversely affected inside the Great Lakes, causing a serious ecosystem disturbance such as the extinction of some native species in the Great Lakes.

As described above, the conventionally used ballast water management system BWMS of the ship causes disturbance of the global marine ecosystem due to the transportation of prohibited life species.

The energy consumption for ballast water exchange is 3 to 5% of the annual consumption of the ship, which is very costly.

The installation and maintenance cost of the processing apparatus for treating the active substances is high.

There is a danger that the ship sinks during the ballast water exchange and there is a large economic loss such as a decrease in the number of times of sailings due to the time spent on the open sea for the ballast water exchange.

In addition, due to the structure of the ballast water tank, the structure of the ship is twisted.

In order to prevent this problem, the structure of the ballast water tank is strengthened by steel structure, which increases the installation amount of the steel structural member, and this increases the weight of the ship hull structure.

For these and other reasons, there were structural and mechanical problems in ship structure.

Images