Abstract: A cryogenic vessel includes a shell, an inner vessel and a thermal insulation layer arranged on a periphery of the inner vessel, a gap is provided between the shell and the inner vessel to form a sandwich space in a vacuum environment. The pressurizing device includes a fixing member, a protruding member, a heat conducting member, an operating member and a connecting member.

Abstract: An inner and outer tank connection device for a cryogenic storage tank includes a suspension belt; a first connection assembly for connecting the outer tank, wherein the first connection assembly includes a first connection seat and a first connection member, and the first connection seat is configured for connecting the outer tank and the first connection seat is provided with a first limiting seat, the first connection member is rotatably connected to one end of the suspension belt, and the first connection member is provided with a first limiting portion, and the first limiting portion fits with the first limiting seat to limit the first connection member from twisting on the first connection seat with the suspension belt as a rotation axis; and a second connection assembly for connecting the inner tank, wherein the second connection assembly is rotatably connected to another end of the suspension belt.

Abstract: cryogenic vessel includes a shell, an inner vessel and a thermal insulation layer arranged on a periphery of the inner vessel, a gap is provided between the shell and the inner vessel to form a sandwich space in a vacuum environment. The pressurizing device includes a fixing member, a protruding member, a heat conducting member, an operating member and a connecting member.