The present invention relates to an insulation system for a liquefied gas storage tank for insulating liquefied gas stored inside a tank body, comprising: an insulation part formed by spraying and stacking foam from the outside of the tank body; and a sheet part provided between the tank body and the insulation part before spraying the foam to the tank body, wherein the sheet part includes two or more breathable insulation materials having different densities from each other, and the breathable insulation material having a relatively high density is installed at a position affected by the weight of the insulation part in the tank body. An objective of the present invention is to provide the insulation system for a liquefied gas storage tank and a construction method thereof, that can prevent damage to the insulation system due to a difference in thermal expansion coefficient between an outer wall of a storage tank and a foam in a cryogenic environment and maintain the insulation performance of the insulation system.
본 발명은 탱크 몸체 내부에 저장된 액화가스를 단열하기 위한 액화가스 저장탱크의 단열시스템에 관한 것으로, 상기 탱크 몸체의 외부에서 발포폼을 분사 적층시켜 형성되는 단열부; 및 상기 탱크 몸체에 상기 발포폼을 분사하기 이전에 상기 탱크 몸체와 상기 단열부 사이에 마련되는 시트부를 포함하고, 상기 시트부는 서로 밀도가 다른 두개 이상의 통기성 단열재를 포함하며, 상대적으로 높은 밀도를 갖는 통기성 단열재는 상기 탱크 몸체에서 상기 단열부의 자중 영향을 받는 위치에 설치된다.
INSULATION SYSTEM FOR LIQUIFIED GAS STORAGE TANK AND CONTRUCTION METHOD THEREOF
액화가스 저장탱크의 단열시스템 및 그 시공방법
2022-03-23
Patent
Electronic Resource
Korean
INSULATION SYSTEM FOR LIQUIFIED GAS STORAGE TANK AND CONTRUCTION METHOD THEREOF
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