MANAGEMENT OF FLUIDS IN A SEALED AND THERMALLY INSULATED TANK

摘要

The invention relates to a method for managing fluids in a sealed and thermally insulated tank (1) containing a liquefied gas (8) at low temperature, in which method one wall of the tank has a multilayer structure comprising an exterior bearing wall (2), a primary sealing membrane (9) intended to be in contact with the liquefied gas contained in the tank, an intermediate space (3) situated between the primary sealing membrane and the exterior bearing wall, the method involving: drawing a gaseous phase from the intermediate space toward the outside of the wall of the tank in order to lower the pressure in the intermediate space to below an operating pressure of the intermediate space, detecting that the pressure in the intermediate space has stabilized during the sucking-out step, and warming the wall of the tank.