Construction method of newly added and modified gravity device of ship

CN120646182BActive Publication Date: 2026-07-14CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
Filing Date
2025-07-10
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The installation of gravity flow cooling systems on existing ships is difficult due to challenges in ensuring the construction environment, space, and orientation, resulting in insufficient dimensional accuracy and affecting the applicability of the gravity flow devices.

Method used

A modular construction method was adopted, using a process of cutting, segmenting, modifying, and reassembling to determine the installation location of the gravity flow device, delineate the area to be cut, cut it into independent hull sections, and complete the fabrication and welding of the gravity flow device in the workshop to ensure the accuracy of the outer shape and the integrity of the structure.

Benefits of technology

It significantly improved the construction environment and space of the gravity flow device, reduced the construction difficulty, improved the accuracy of the outline, enhanced the applicability of the gravity flow device to ships, shortened the construction cycle, and reduced noise radiation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN120646182B_ABST
    Figure CN120646182B_ABST
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Abstract

The application relates to a construction method for adding and modifying a self-flow device of a ship, and belongs to the technical field of ships. The method comprises the following steps: determining the installation position of the self-flow device on the ship body according to the functional requirements of the self-flow device and the structural strength of the ship body; demarcating a to-be-cut region on the ship body with the installation position as the center; separating the to-be-cut region from the ship body to form a ship body segment; completing the manufacturing and installation of the self-flow device on the outer surface of the ship body segment in a workshop meeting the construction environment; and re-docking and welding the ship body segment integrated with the self-flow device to ensure that the ship body structure is restored to the original design load standard. The modular construction system of the application successfully solves the problems that the traditional shipbuilding construction cannot meet the high construction condition requirements and high precision forming requirements of the self-flow device, can significantly improve the construction environment, construction space and posture of the self-flow device manufacturing, reduces the construction difficulty, improves the profile precision of the self-flow device, and improves the applicability of the self-flow device to the ship.
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