Liquefied gas storage tank
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsNicolas JANNIN, Jerome LOSCO, Thomas FAYER
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Abstract
Tank for storing liquefied gas comprising a sealed housing defining a storage space for the liquefied gas, the housing comprising a lower end and an upper end, the tank comprising a device for measuring the level of liquid in the housing, the device for measuring the level of liquid comprising, arranged in the housing, a float and a guide for moving the float, characterized in that the guide comprises an end connected to an upper portion of the housing and a lower end connected to a lower portion of the housing, the float being mounted moveably in translation on the guide such that the float is free to slide along the guide, the device for measuring the level of liquid further comprising at least one float position sensor.
Claims9
1-6. (canceled)
A liquefied gas storage tank comprising an sealed housing, a device for measuring a level of liquid in the housing, and an outer wall disposed around the housing, wherein:
- the housing delimits a storage volume for the liquefied gas and has a lower end and an upper end;
- the device for measuring the level of liquid is disposed in the housing and comprises a float, a guide for the displacement of the float, and at least one sensor sensing the position of the float;
- the guide comprises an end which is connected to an upper part of the housing and a lower end which is connected to a lower part of the housing;
- the float is fitted such as to be translationally movable on the guide such that the float is free to slide along the guide;
- the outer wall has an intermediate space containing thermal insulation;
- the at least one position sensor is secured on an exterior of a volume delimited by the outer wall and the housing,
- and in that the at least one position sensor is an optical or laser detection sensor which is configured to detect the position or the distance of the float relative to a reference point, and in that the housing comprises at least one window which is situated between the sensor and the float, the window being configured to permit the passage of a signal for detection of the sensor, such as an optical or laser signal.
Dependencies are inferred from the claim text.