| 摘要 |
<p>PURPOSE:To improve performance for reliquefying boiloff gas by reliquefying boiloff gas by heat reserve of internal liquefied gas. CONSTITUTION:A heat-transfer pipe 5 is disposed in the periphery of a tower 2 erected in a cargo tank 1. The upper and lower end portions 5a, 5b of the heat-transfer pipe 5 are disposed in a gas phase portion and a liquid phase portion of the cargo tank 1, respectively. Boiloff gas in the gas phase portion is sucked in the heat-transfer pipe 5 by a transfer pump 6 attached to the heat- transfer pipe 5 and let flow downward. In this arrangement, performance for reliquefying boiloff gas can be improved.</p> |
