Abstract:
단열시스템의 체결 구조 및 체결 방법이 개시된다. 본 발명의 단열시스템의 체결 구조는, 선박 또는 해양구조물의 화물창에 마련되는 단열시스템의 체결 구조에 있어서, 상기 단열시스템은 1차 밀봉벽 및 1차 단열벽과, 2차 밀봉벽과 및 2차 단열벽이 교대로 적층되어 이루어지고, 상기 2차 단열벽을 관통하여 지지구조체가 마련되되, 상기 지지구조체의 일단부는 선체 내벽에 마련된 보스에 체결되고, 타단부는 상기 지지구조체의 단부가 삽입될 수 있는 공간이 마련된 서포트 부재에 삽입되어 상기 2차 단열벽의 상단에 체결되는 것을 특징으로 한다.
Abstract:
An insulation box of an LNG storage tank is disclosed. The insulation box of the LNG storage tank according to the present invention, to form an insulation wall of the LNG storage tank, comprises: a support frame coupled therein and arranging a plurality of pillars spaced apart from each other; and a wave type partition body including wave form partitions arranged in the support frame to be positioned between the pillars and having a continuous wave shape in a longitudinal direction.
Abstract:
PURPOSE: An LNG cargo is provided to improve structural strength by manufacturing an insulation box for forming an insulation wall using a fiber reinforced plastic material. CONSTITUTION: An LNG cargo (1) comprises a primary barrier wall (10), a secondary barrier wall (20), and a vacuum insulation panel (30). LNG touches the primary barrier wall. The second barrier wall is arranged under the primary barrier wall and prevents the LNG leaking from the primary barrier wall from touching a hull. The vacuum insulation wall is formed on one or more of the primary and secondary barrier walls and insulates the LNG. A primary insulation wall (12) of the primary barrier wall and a secondary insulation wall (22) of the secondary barrier wall are manufactured using a fiber reinforced plastic material.
Abstract:
PURPOSE: A liquefied natural gas (LNG) hold and a thermal performance maintaining method are provided to maintain thermal performance while satisfying a required boil of ratio (BOR) by using the effect of vacuum pressure on the thermal performance of a particle type insulation material. CONSTITUTION: A liquefied natural gas (LNG) hold (1) and a thermal performance maintaining method includes a first insulation box (100), a vacuum pressure control unit (300), and a control unit (400). The first insulation box first insulates the LNG which is stored in a storage tank; has the inside to be maintained to be in a vacuum state; and is filled with the insulating material. The vacuum pressure control unit controls the vacuum pressure of the first insulation box. The control unit maintains a boil off ratio (BOR) within a predetermined range by controlling a vacuum pressure control unit in case the BOR is out of the predetermined range.