FLAT BOTTOM CYLINDER LOW TEMPERATURE TANK AND ITS CONSTRUCTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a flat bottom cylinder low temperature tank having a simple structure which leads to reduction of construction time, and its constructing method. SOLUTION: Instead of a conventional constructing method of a flat bottom cylinder low temperature tank capable of storing low temperature liquid, an inner tank which has an inner tank bottom plate and an inner tank side plate and can store low temperature liquid, and an outer tank bottom plate and outer tank side plate of an outer tank surrounding the outside of the inner tank are manufactured. An upper side plate is manufactured. The lower end of the upper side plate is coupled with the upper end of the inner tank side plate. The midsection of the outer tank roof plate is formed at the bottom of the inner tank. The sealing structure is formed on the outer periphery of the midsection of the outer tank roof plate. The midsection of the outer tank roof plate is lifted by air pressure so as to couple the midsection of the outer tank roof plate with the outer periphery of the outer tank roof plate. COPYRIGHT: (C)2004,JPO