Method and apparatus for detecting liquid leaks

Details Method and apparatus for detecting liquid leaks Method and apparatus for detecting liquid leaks

1989-09-28

1990-10-23

Chapman, John

Measuring and testing

With fluid pressure

Leakage

73299, G01M 326

Patent

active

049642960

ABSTRACT:
A liquid leak detector for above-ground tanks includes an upright standpipe connected to the tank so that the standpipe can be filled with liquid from the tank to the same level as the liquid in the tank. A pressure transducer is connected between the bottom of the tank and the bottom of the standpipe to measure the difference in pressure of the liquids in the tank and standpipe. Any change in the liquid pressure at the bottom of the tank as a result of leakage from the tank will change the pressure differential on the pressure transducer. This changes the output of the transducer which can be recorded to indicate leakage from the tank.

REFERENCES:
patent: 3257851 (1966-06-01), Altman et al.
patent: 3902356 (1973-09-01), Rupf-Bolz
patent: 3939383 (1976-02-01), Alm
patent: 4389888 (1983-06-01), Morooka
patent: 4862734 (1989-09-01), Elderton

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