A honeycomb insulation layer semi-thin film type enclosure system

CN121224919BActive Publication Date: 2026-07-24DALIAN SHIPBUILDING INDUSTRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN SHIPBUILDING INDUSTRY CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing membrane containment systems for LNG carriers have long construction cycles, and traditional structures are difficult to effectively resist the slamming loads caused by liquid cargo sloshing and ensure low evaporation rates.

Method used

A honeycomb-shaped insulation layer semi-film enclosure system is adopted, which is composed of modular prefabricated units, including a main shield, a sandwich-core secondary shield, a honeycomb insulation layer and a composite material plate. The multi-layer structure composed of a honeycomb partition frame and thermal insulation material realizes modular connection and thermal insulation functions, and the structural design is optimized through finite element analysis.

Benefits of technology

It enables rapid construction of LNG carriers, improves structural support and insulation performance, reduces evaporation rate, enhances resistance to slamming loads, and combines the advantages of both freestanding and membrane-type containment systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of cellular insulation layer semi-thin film type enclosure system, there is modular prefabricated unit with overall square, modular prefabricated unit is main shield, sandwich secondary shield, cellular insulation layer, composite material board from top to bottom in turn, the size of main shield, sandwich secondary shield, cellular insulation layer, composite material board is identical, and adhesive connection is used between each layer.Cellular insulation layer has cellular partition frame, cellular partition frame is composed of multiple regular hexagonal prism, and insulation material is filled in the space formed by regular hexagonal prism.The cellular insulation layer structure proposed in the application has excellent supporting capacity for the pressure load borne by the enclosure system, can effectively resist the slamming load caused by liquid cargo sloshing, and can also bear the static pressure of liquid cargo.Filling thermal insulation material in the cellular partition frame can realize the thermal insulation function of liquid cargo enclosure system, can effectively ensure the liquid tank airtightness, reduce the evaporation rate, and effectively shorten the construction period of LNG liquid tank.
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