The present invention relates to a facility for storing and transporting a cryogenic fluid on a shipSaid facilityIt comprises a closed insulation tank (2) and a sealed lineThe closed insulation tank 2 has a ceiling wallCeiling wallFrom the outside of the sealed heat insulating tank (2) along the thickness direction of the ceiling wallPrimary thermal barrier (11) andA primary sealing membrane (10) configured to contact said low temperature fluidEquipped withThe closed line (14) penetrates the ceiling wall of the closed insulation tankThe closed line (14) has a lower (15) and an upper (16);Said bottomA first end positioned inside said ceiling wall of said closed thermal insulation tankA second end positioned outside the ceiling wall of the closed insulation tankIn the thickness direction of the ceiling wallThe upper portion is fixed to the second end of the lower portion;The lower portion (15) is made of an alloy having a low coefficient of thermal expansion, andThe primary sealing membrane (10) is firmly fixed to the lower portion (15) of the sealed line (14) around the closed line (14).Diagram
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