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|1. (WO2017034109) INSULATION SYSTEM FOR MEMBRANE-TYPE STORAGE TANK AND MEMBRANE-TYPE STORAGE TANK COMPRISING SAME|
|Applicants:||DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
|Inventors:||PYO, Chang Min
PARK, Kwang Jun
KANG, Bong Ho
HEO, Haeng Sung
|Title:||INSULATION SYSTEM FOR MEMBRANE-TYPE STORAGE TANK AND MEMBRANE-TYPE STORAGE TANK COMPRISING SAME|
An insulation system for a membrane-type storage tank, according to the present invention, comprises: a secondary insulating wall which is for insulating the inner space of a liquefied natural gas storage tank from the outside and has a bent shape so as to be provided on the corner of the liquefied natural gas storage tank; a secondary sealing wall which is stacked on the secondary insulating wall and is formed from a stainless steel material having a corrugated part; a primary insulating wall which is stacked on the secondary sealing wall and has a bent shape so as to be attached to the secondary insulating wall; and a primary sealing wall, formed from a stainless steel material, which is stacked on the primary insulating wall and has a corrugated part formed in the inward direction of the liquefied natural gas storage tank, wherein a primary insulating wall attaching means provided on the secondary insulating wall is inserted to an attachment hole provided on the primary insulating wall and thus the primary insulating wall is attached to the secondary insulating wall. Therefore, the present invention provides an insulation system structure that is appropriate even for a secondary sealing wall formed from stainless steel in a membrane-type storage tank.