| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas supply device used for an LNG fuel ship, for instance, which is high in safety and easy in maintenance, moreover can perform prompt pressure control.SOLUTION: A gas supply device 11 includes a supplying passage 31 supplying a vaporized gas to a consuming facility 13 in a tank 21 accumulating an LNG 12 and a circulating passage 41 circulating a vaporized gas guided from an inner heat shield chamber 25 and returns the gas to the tank 21, and supplies the gas through the supplying passage 31 by adjusting a pressure within the tank 21 with a pressure adjusting mechanism 42 arranged in the circulating passage 41. The tank 21 includes inside a liquefied gas accumulating section 24 accumulating the LNG 12 and the inner heat shield chamber 25 partitioned by a vacuum insulating layer 22a. A leading passage 26 leading the LNG 12 to the inner heat shield chamber 25 is formed in a liquefied gas accumulating section 24, and an upstream section of the circulating passage 41 is formed within the tank 21. The inner heat shield chamber 25 includes a heat exchanging section 27 using gas as heat medium for evaporating the LNG 12 and moreover a liquid phase part is housed within the tank 21. |
