Floating Structure

Abstract

This invention is to offer the floating structure to change oil tanker and oil barge of single hull into that of double hull by simple method. This floating structure is provided with central tanks, wing tanks on right and left of central tank and gate at the end of the floating structure. This floating structure can change the oil tanker or oil barge of the single hull to double hull by leading-in and fixing oil tanker or oil barge of single hull in concave portion formed between the central tanks, wing tanks and the gate. The gate has the connecting coupler with tugboat.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a floating structure which is used in the river and the ocean.[0003]2. Description of Related Art[0004]The oil tanker and the oil barge of the single hull have the cargo oil tanks directly facing to the outside by a partitioned steel wall at its bottom and side. (Hereafter, it is said “single hull”). However, the loaded cargo oil flows out from the damage part of cargo tank when damage to which single hull tears in some causes of the collision, grounding, corrosion, and breakage, etc. is received, and oil will pollute the river and the ocean.[0005]Therefore, cargo oil is obligated to be loaded inside of double skin of the oil tanker and the oil barge when transporting at sea (Hereafter, it is said “double hull”) by the international agreement (International Convention for the Prevention of Pollution from Ships, 1973 and Protocol of 1978).[0006]On the other hand, it is internationally ope...

AI Technical Summary

Benefits of technology

[0013]According to this invention, the oil tanker or the oil barge of the single hull can be changed to double hull. Therefore, it comes to be able to use the oil tanker or the oil barge of single hull for the transportation in the ocean and the river by observing the said international agreement even if the expensive remodeling construction work of the oil tanker or the oil barge of single hull is not done.

[0014]Moreover, the economic profit when applying this invention is large because the floating structure of this invention is an easy composition only of the provision with the central tank, the wing tank on right and left both sides of central tank and the concave portion, and the extraction work of the cargo oil from the oil tanker and the oil barge of single hull becomes unnecessary and the stopping period of the service of the oil tanker and the oil barge can be shorten.

[0020]As it is made to possible to sail pushing the floating structure at the gate by tugboat with connecting coupler, the improvement of maneuverability and the speed improvement can be aimed at. As a result, it becomes easy to sail the floating structure including oil tanker or oil barge of single hull according to the invention.

[0022]Because the oil tanker or the oil barge of the single hull is put on the central tank and the wing tank, the oil tanker or the oil barge of the single hull is fixed with fixing materials, the oil tanker and the oil barge of single hull can be changed into those of double hull without using the fire. Therefore safety can be secured, and the construction period can be shortened according to the invention.

Problems solved by technology

However, the loaded cargo oil flows out from the damage part of cargo tank when damage to which single hull tears in some causes of the collision, grounding, corrosion, and breakage, etc. is received, and oil will pollute the river and the ocean.

However, double hull change takes long working period and its construction expense often becomes large amount of money.

However, during long engagement of the service, cargo oil soaks into rusted steel part in cargo oil tank surface, and it is difficult to clean up the oil thoroughly from the hull structure.

Therefore, the period of remodeling construction work tends to become long because the use of the fire is limited, and the stopping period of the service of the oil tanker and the oil barge of shingle hull also tends to become long.

Thus the remodeling construction work expends large amount of money and it requires long period leading to large economic loss.

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