Storage facility for a liquid-state gas comprising a tank and a suction device of an insulation layer of said tank

A storage facility for gas in a liquid state comprising:

• at least one tank for transporting and/or storing the gas in the liquid state, the tank including at least one insulation layer;
• at least one gas-consuming device;
• at least one device for suctioning gas present in the insulation layer, the suction device including:
• at least one primary branch fluidly connected to the gas-consuming device,
• at least one secondary branch fluidly connected to the insulation layer of the tank and through which the gas from the insulation layer flows, and
• at least one suction member configured to suction the gas flowing through the secondary branch;
• a circuit for inerting the insulation layer, wherein an inerting gas is circulated by a dinitrogen source within the insulation layer, the secondary branch being connected to the inerting circuit, the inerting circuit including a valve isolating the secondary branch from the inerting circuit:
• an analysis module, connected to the inerting circuit, which analyzes the gas suctioned through the inerting circuit;
• and
• an additional valve positioned at the inerting circuit, the storage facility being configured to, by opening one of the valves and closing the other valve, make the fluid connection to the insulation layer with the inerting circuit or with the suction device, depending on whether or not gas is detected by the analysis module.