| 摘要 |
PURPOSE: A floating structure is provided to reduce generation rate of evaporative gas by heat-exchanging LNG(Liquefied Natural Gas) and the evaporative gas in the upper and lower parts of a storage tank. CONSTITUTION: A floating structure(100) comprises a main body(110), first coffer dams(131), a second coffer dam(132), storage tanks(120), an LNG pipe, and an evaporative gas pipe. The first copper dams divide the main body along a lateral direction of the main body. The second coffer dam divides the main body in a longitudinal direction of the main body. The storage tanks are installed in spaces divided by the first and second coffer dams and store the LNG. The LNG pipe is installed in the second coffer dam. The LNG pipe delivers the LNG in the lower part of storage tank to an evaporative gas section in the upper part and connects the multiple storage tanks. The evaporative gas pipe installed in the second coffer dam delivers the evaporative gas in the upper part of the storage tanks to a LNG section in the lower part and connects the multiple storage tanks.
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