Leakage detector system

Details Leakage detector system Leakage detector system

G - Physics

01

F

340/145, 73/39

G01F 23/44 (2006.01) G01M 3/32 (2006.01)

Patent

CA 2021659

LEAKAGE DETECTION SYSTEM Abstract of the Disclosure Apparatus for detection leakage of hydrocarbon- containing liquid, such as gasoline, from a generally cylindrical tank. The apparatus includes an elongate displacer having a vertical axis and extending substantially the full height of the liquid in the tank. The displacer has an upper end and a lower end with the displacer lower end terminating closely adjacent but spaced from the bottom of the tank. The displacer is made of a material having a coefficient of linear expansion of less than 20 x 10-6 inches per inch per degree centigrade. Furthermore, the displacer is substantially symmetrical about any plane through its vertical axis and it has an outer surface which is a surface of revolution. The displacer has a varying diameter along its length corresponding to the horizontal surface area of the tank at the same height inside of the tank. The apparatus further includes a sensor for providing an indication of the weight of the displacer disposed in the liquid. The apparatus also includes a cable extending inside a upwardly extending pipe joining the tank and connecting the upper end of the displacer to the sensor.

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