| abstract |
Process and device for filling tanks (1) with pressurized gas, via a station (100) comprising at least one source (2, 3, 4) of pressurized gas and a fluid circuit (5) for the transfer of the gas comprising a first end connected to the at least one gas source (2, 3, 4) and a second end provided with a transfer pipe (6) intended to be joined in removable fashion to the tanks (1) to be filled, the circuit (5) comprising, positioned between the first end and the second end, a first isolation valve (7), a member (8) for regulation of flow rate or pressure, and a second isolation valve (11), the process comprising the successive filling of a first tank (1) and then of a second tank (1), the process comprising, between the filling of the first tank (1) and the filling of the second tank (1), a leaktightness test on the second tank (1) joined in leaktight fashion to the second end of the circuit, the leak test comprising placing the second tank (1) under pressure via the opening of the second valve (11), at the end of the filling of the first tank (1), in which a measurement of the pressure of the supply of gas trapped in the circuit (5) between these two closed valves (7, 11) is carried out and, when this measured pressure is greater than a predetermined threshold, the leak test on the second tank (1) is carried out with the gas supply via the opening of the second valve (11) and, when this measured pressure is lower than the predetermined threshold, the process comprises a stage of filling the circuit between the two valves (7, 11) with the gas source (2, 3, 4) via an opening of the first valve (7), a stage of closing of the first valve (7) when this measured pressure in the circuit (5) between these two valves (7, 11) reaches or exceeds the predetermined threshold, the leak test on the second tank (1) subsequently being carried out with the gas supply via the opening of the second valve (11). |