MULTIPLE INSULATION BOX FOR A LNG STORAGE TANK AND ITS MANUFACTURING METHOD

摘要

PURPOSE: An insulation box for a hold of an LNG vessel and a manufacturing method thereof are provided to improve the intensity and the performance of insulation and to simplify the manufacturing work of the insulation box. CONSTITUTION: An insulation box (1) for a hold of an LNG vessel comprises a storage tank, a first insulation box (110), a second insulation box (120), and coupling members (130). The storage tank stores LNG therein. The first and second insulation boxes are successively formed between the inner walls of a hull and have a multi-layer structure. The coupling members are supported to coupling areas and couple the insulation boxes to each other.