Manufacturing method of ship sea chest grating and ship sea chest grating

Abstract

The invention discloses a manufacturing method of a ship sea chest grating.The method comprises the following steps: S10, determining the position and the size of a sea chest in an outer plate three-dimensional diagram, and obtaining a sea chest opening area; S20, selecting an opening area of a grating structure in the outer plate three-dimensional diagram to obtain a grating opening area, enabling the grating opening area to be located on a hull outer plate corresponding to the sea chest opening area, and determining the thickness of the grating structure; S30, obtaining a three-dimensional diagram of the sea chest grating according to the sea chest opening area, the grating opening area and the thickness of the grating structure; and S40, cutting water inlet holes in the hull outer plate according to the three-dimensional diagram of the sea chest grating, so that the grating structure is formed on the hull outer plate. The matching degree of the sea chest grating and the hull outer plate can be improved, and repeated machining of the hull outer plate is reduced.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a manufacturing method of a ship seabed door grille and a ship seabed door grille. Background technique [0002] A certain number of seabed doors will be set up on the underwater outer panels of large ships, through which seawater will be sucked into the hull for ballasting, fire extinguishing and equipment cooling. Generally, a grille plate is arranged in the seabed door, and the floating object is separated from the seawater by the grille plate, so as to prevent the floating object from being sucked into the suction pump along with the seawater, and prevent the floating object from blocking the suction pump and the pipeline system inside the hull. [0003] In the prior art, the grille plate and the outer plate at the seabed door are arranged separately, and the grille plate is connected and fixed with the outer plate at the seabed door through connecting bolts. The grid plate of...

AI Technical Summary

Problems solved by technology

The grid plate of this structure needs to be cut and opened on the outer plate of the hull, and then the grid plate is installed at the position of the hole, resulting in repeated processing and waste of material on the outer plate

In addition, the outer plate of the seabed door is a linear curved surface structure, while the grid plate in the prior art is usually a plane structure, resulting in a mismatch between the grid plate and the outer plate of the hull, causing the outer plate of the hull to be uneven

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