Ventilation structure for a cabin of a marine vessel

By adopting detachable flange connections and reducing joint designs in the ship's cabin ventilation structure, the problems of difficult welding and high ventilation resistance are solved, achieving convenient welding, post-weld grinding, and improved ventilation effect, while also providing rainproof and exhaust functions.

CN224349119UActive Publication Date: 2026-06-12WUHU SHIPYARD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU SHIPYARD CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In the existing technology, when connecting the ventilation pipes of ship cabins to the ventilation covers on the outside of the cabins, welding is difficult, post-weld grinding and painting are inconvenient, and ventilation resistance is large when connecting ventilation pipes of different diameters.

Method used

The design employs a detachable flange connection structure and a reducing joint. The detachable structure is achieved through the flange connection between the first and second ventilation pipes, which facilitates welding and post-weld grinding. A reducing joint is installed between the second and third ventilation pipes to solve the problem of abrupt changes in ventilation cross-section and reduce ventilation resistance.

Benefits of technology

It enables convenient welding and post-weld grinding of ventilation ducts, reduces ventilation resistance, improves ventilation effect, and has rainproof and exhaust functions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a ventilation structure of ship cabin belongs to ship technical field, including first ventilation pipe (1) and second ventilation pipe (2), first ventilation pipe (1) one end is equipped with ventilation opening (17), ventilation opening (17) is equipped with the ventilation cover (8) of openable, realizes exhaust and waterproof. First ventilation pipe (1) other end and second ventilation pipe (2) one end are connected through connecting mechanism (4), connecting mechanism (4) includes first flange (6) and second flange (7), through setting a group of flanges between first ventilation pipe (1) and second ventilation pipe (2), form detachable structure, convenient welding, polishing and coating after welding, second ventilation pipe (2) other end is connected with reducing adapter (5), be used for ventilation cross section sudden change problem, reduce ventilation resistance.
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Citation Information

Patent Citations

  • Ventilation pipe

    CN212511716U