Method and filling installation for filling a hydrogen gas into a vessel

摘要

Method and filling installation for filling a hydrogen gas into a vessel (1) having a first port (2) for passing the hydrogen gas and a second port (3) for passing a fluid, wherein the second port (3) is separate from the first port (2). In a first phase a hydraulic fluid is introduced into the vessel (1) through the second port (3) by applying pressure to the hydraulic fluid, such that the hydraulic fluid in the vessel (1) causes a hydrostatic pressure having a pre-determined value. In a second phase the hydrogen gas is introduced into the vessel (1) through the first port (2) by controlling a difference of pressure relative to a current pressure in the vessel (1) for controlling expansion of the hydrogen gas and thereby temperature inside the vessel (1), such that the vessel (1) is filled with the hydrogen gas. To that end the hydraulic fluid is removed from the vessel (1) through the second port (3).

主权项

1. A filling station for filling a vessel with hydrogen gas at a predetermined pressure, said vessel having a first port for passing said hydrogen gas and a second port for passing a fluid, said second port being separate from said first port, said filling station comprising:
a hydrogen gas supply for supplying hydrogen gas under pressure; a fluid supply for supplying a hydraulic fluid under pressure; a fluid coupling for coupling with said second port of said vessel for introducing hydraulic fluid under pressure from said fluid supply into said vessel such that said hydraulic fluid in said vessel causes a hydrostatic pressure having a value substantially equal to said predetermined pressure of said hydrogen gas in said vessel, and for removing said hydraulic fluid from said vessel, and a gas coupling for coupling with said first port of said vessel for introducing hydrogen gas from said hydrogen gas supply into said vessel to fill said vessel with said hydrogen gas at said predetermined pressure by controlling a difference of pressure relative to a current pressure in said vessel for controlling expansion of said hydrogen gas in said vessel and thereby temperature inside said vessel.