MARINE VESSEL WITH PIPELINE FOR DUMPING LIQUID HYDROGEN

摘要

PROBLEM TO BE SOLVED: To provide a marine vessel equipped with a pipeline for dumping liquid hydrogen on the sea capable of restricting the blockage of the tip of the pipe outer peripheral portion caused by solid air at the time of dumping on the sea.SOLUTION: In a liquid hydrogen transport ship 1 having a pipeline 7 for dumping liquid hydrogen on the sea which is a load stored in a spherical tank 2, the pipeline 7 includes: an inner pipe 7a through which liquid hydrogen flows; an outer pipe 7b which includes a part with a larger surface area than other parts on its tip side and which forms a vacuum layer 7f in a radial direction gap with the inner pipe 7a; and a plurality of fins 9 which are arranged substantially parallel to the axis at least at the tip side portion of the outer pipe 7b and extend radially.SELECTED DRAWING: Figure 5