SAFETY DEVICE FOR A TANK INTENDED TO CONTAIN A PRESSURISED GAS

• Main Authors: BOPWA MUNTU, Christian, MESJASZ, Claude, SINAULT, Yann
• Format: Patent
• Language: English; French; German
• Published: 03.07.2024
• Subjects: BLASTING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; STORING OF DISTRIBUTING GASES OR LIQUIDS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

The invention relates to a safety device (3) comprising: - an aeration channel (9) fluidly connecting an internal volume (10) defined by a tank and the outside of the tank (2);; - a safety piston (5) that is movable between a position in which it blocks the aeration channel (9) and a safety position in which it does not block the aeration channel; - a first deformable safety member (6) that keeps the safety piston in the blocking position against a spring force for returning the safety piston to the safety position; - means (7) for deforming the first safety member (6), which means are movable between a rest position and a deformation position; and - at least a second safety member (8) intended, in the rest position, to hold the deformation means in the rest position against a spring force for returning the deformation means back to the deformation position when the second safety member experiences a temperature lower than a predetermined temperature and, in the work position, to release the spring for for returning the deformation means back to the deformation position when the second safety member experiences a temperature higher than a predetermined temperature, the second safety member (8) being formed by a safety line (16) made of a material that has low mechanical resistance to fire.