Installation and method for liquefying a cryogenic fluid

An installation for liquefying a cryogenic fluid, the installation comprising:

• a circuit configured to supply fluid to be cooled that is provided with an upstream end that is configured to gas from a source of gas and a downstream end connected in parallel to a plurality of cryogenic stores for liquefied fluid;
• a set of heat exchanger(s) in heat exchange with the supply circuit and a cooling device in heat exchange with the set of heat exchanger(s), said cooling device comprising a refrigerator with a cycle of refrigeration of a cycle gas comprising at least one of:
• hydrogen and/or helium;
• a set of liquid withdrawal ducts provided with a set of valve(s) and connecting the plurality of cryogenic stores to at least one connecting end configured to connect to a tank to be filled;
• a common heater connected in parallel to the plurality of cryogenic stores for fluid via a set of pressurization ducts provided with valves, the set of pressurization ducts and the corresponding valve(s) being configured to allow the pressurization of each of the cryogenic stores via drawing off liquid from the store, heating the drawn-off liquid in the common heater and returning the heated fluid to the store and in that the heater comprises two heat exchangers disposed in parallel, each ensuring an exchange of heat between the fluid conveyed by the set of pressurization ducts and a heating fluid;
• and
• a set of valve(s) configured to distribute the flow of the fluid conveyed by the set of pressurization ducts into the one or two heat exchangers disposed in parallel.