Sealed, insulating walls for cryogenic storage tanks - which are assembled in situ and sealed at all interfaces

摘要

A leak-proof thermally insulating wall comprises a layer of a rigid thermal insulation which can be mountedon a supporting wall and which can carry panel of bulky insulating material covered on the exposed surface with a sheet of impermeable, strong and cold-resistant material. Strips or layers of an adhesive, insulating sealant cured in situ fill the joints between the panels. Esp. for lining tanks for storing cryogenic liquids. The supporting wall may be the metal hull or hold of a ship or the concrete side of an underground reservoir. The walls can be constructed on site from prefabricated components, the sheet and slabs being mounted and sealed before being covered with a film cut to size to suit the size of the reservoir, or other areas much larger than individual core insulation panels.