Hydraulic sealing door structure for ship cargo hold and method for horizontally rolling cargos in multi-layer hold

Abstract

Disclosed is a hydraulic sealing door structure for a ship cargo hold. A door frame is arranged at a port of the cargo hold. A sealing door plate corresponding to the door frame is arranged on the inner side of the door frame. The bottom of the sealing door plate is hinged to a deck and can swing up and down relative to the deck, and when the sealing door plate swings to the upmost part, the sealing door plate and the door frame can be compressed and sealed; a groove is formed in the portion, on the inner side of the door frame, of the deck; when the sealing door plate swings downwards to thebottom, the sealing door plate can be hidden into the groove, and the sealing door plate and the deck part are flushed to form a plane; a pressure cylinder driving the door plate to swing is further arranged inside the groove. Certainly, the completely-sealed technical scheme can also be adopted, the sealing effect is better compared with the semi-sealed mode, and the phenomenon that a bottom layer cargo hold is likely to leak water when the multi-layer ro-ro passenger ship adopts semi-sealing is avoided. On the premise that a tail plate is not folded, loading for the horizontal roll-roll shipment mode of the multi-layer cargo hold can be completed, the loading efficiency is greatly improved, the problem that the ro-ro passenger ship loading mode is limited by the tail plate is solved, andthe suitable loading mode can be selected more flexibly.

Description

technical field [0001] The invention relates to a hermetic door structure, in particular to a hydraulic hermetic door structure of a ship's cargo hold, and also relates to a method for rolling and rolling cargo horizontally in a multi-layered ship's hold. Background technique [0002] A ro-ro ship is a means of transportation, a special ship that uses freight vehicles to directly enter and exit the cargo hold to load and unload cargo. At present, ro-ro ships will have more than two floors of cargo holds to increase the cargo capacity. However, the two-story cargo compartment will share a huge tailgate. When the bottom cargo compartment is loaded with horizontal roll-off, the tailgate needs to be retracted. [0003] However, when the retracted tailgate blocks the bottom hatch, it also blocks the upper hatch, making it impossible for the upper cargo compartment to be loaded in a horizontal roll-off manner. That is to say, if the bottom layer carries out horizontal ro-ro firs...

AI Technical Summary

Problems solved by technology

However, if the multi-storey cabins of the ro-ro ship cannot be loaded in the way of horizontal ro-ro, it will limit the loading form of the ro-ro ship and affect its loading efficiency

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