IMPROVEMENT TO FLOATING ROOF TANKS FOR LIQUIDS, IN PARTICULAR STORAGE TANKS USED IN THE ELECTRONUCLEAR FIELD

摘要

P THE INVENTION CONCERNS FLOATING ROOF TANKS FOR LIQUIDS, OF THE TYPE COMPRISING A CYLINDRICAL WALL 2, A FLOATING ROOF 3 AND A FLEXIBLE MEMBRANE 4 CONNECTING THE PERFORMANCE OF THE ROOF FLOATING TO THE WALL. / P P CONFORMEMENT IN THE INVENTION, THE TANK BEHAVES, FOR PROTECTION AGAINST A PRESSURE AND / OR LOW PRESSURE, WHEN THE ROOF 3 IS IN A DOWN POSITION, OR COINCE IN THE INTERMEDIATE POSITION, A VACUUM TUBE 34 COMMUNICATING THE INTERIOR OF THE HOUSING FORMING THE ROOF WITH THE LIQUID OF THE RESERVOIR, THIS TUBULURE 34 BEING DIMENSIONED SO THAT ITS NATURAL TARIFF CORRESPONDS TO A PREDETERMINED PRESSURE. / P P APPLICATION IN PARTICULAR TO THE ELECTRONUCLEAR FIELD, FOR STORAGE TANKS PROVIDING DEGAZED WATER SUPPLY FOR A PRIMARY NUCLEAR REACTOR CIRCUIT. / P