Cryogenic liquid tank
A cryogenic liquid tank ( 1 ) includes a reservoir ( 5 ) that includes a bottom portion ( 5 a, 5 a 1 , or 5 a 2 ) and a side wall ( 5 b ), a support portion ( 4 ) that supports the reservoir ( 5 ), and an intermediate member ( 10 ) that is provided between the reservoir ( 5 ) and the support portion ( 4 ). The support portion ( 4 ) includes an outer support portion ( 4 b ) which supports the side wall ( 5 b ), and an inner support portion ( 4 a ) which is disposed to be adjacent to an inner side of the outer support portion ( 4 b ), includes a heat insulating layer formed of an elastic material, and supports the bottom portion ( 5 a, 5 a 1 , or 5 a 2 ) of the reservoir ( 5 ). A cover portion ( 9 a, 9 a 1 , or 15 ) covering a boundary between the outer support portion ( 4 b ) and the inner support portion ( 4 a ) is provided between the support portion ( 4 ) and the intermediate member ( 10 ).
1. A cryogenic liquid tank comprising:
a reservoir that includes a bottom portion and a side wall;
a support portion that supports the reservoir; and
an intermediate member that is provided between the reservoir and the support portion,
wherein the support portion includes an outer support portion which supports the side wall, and an inner support portion which is disposed to be adjacent to an inner side of the outer support portion, includes a heat insulating layer formed of an elastic material, and supports the bottom portion of the reservoir,
wherein a cover portion covering a boundary between the outer support portion and the inner support portion is provided between the support portion and the intermediate member,
wherein an annular plate is disposed on the outer support portion, and
wherein the cover portion is a cover plate which is provided to be adjacent to an inner side of the annular plate and is a member separated from the annular plate.
2. The cryogenic liquid tank according to claim 1 ,
wherein the cover portion includes a recess portion provided at a position overlapping the boundary between the outer support portion and the inner support portion.