Measuring and testing – With fluid pressure – Leakage
Patent
1981-11-18
1984-05-29
Goldberg, Gerald
Measuring and testing
With fluid pressure
Leakage
73 407, 340605, G01M 328
Patent
active
044507119
ABSTRACT:
A pipe-line for conveying a fluid submerged in an ambient fluid medium has an inner conveying tube surrounded by an outer tube radially spaced from the inner tube and defining a continuous annular space therebetween. A leak conductor communicating with a leak collector and surrounding the inner conveying tube conducts leaks of conveyed fluid to the leak collector. The leak collector has a reduced cross-section and is divided into adjacent sections isolated in a fluid-tight manner relative to each other and extending throughout the length of the tube. Each of the sections has at least a single valve automatically opened by predetermined pressure of the conveyed fluid leaks for providing communication with the annular space surrounding the inner tube. A leak detecting system in the annular space includes a sweeping device for sweeping the annular space with an auxiliary fluid and an analyzing device for analyzing the composition of the auxiliary fluid at one accessible end of the pipe-line and at spaced locations along the pipe-line. A warning device connected to the analyzing device is operable when the analyzing device indicates a predetermined condition.
REFERENCES:
patent: 3184958 (1965-05-01), Eaton
patent: 3191427 (1965-06-01), Rapson, Jr.
patent: 3276247 (1966-10-01), Bunn
patent: 3339415 (1967-09-01), Wild
patent: 3402596 (1968-09-01), Woodruff
patent: 3802456 (1974-04-01), Wittgenstein
patent: 3943965 (1976-03-01), Matelena
patent: 4259553 (1981-03-01), Tanaka et al.
Goldberg Gerald
Roskos Joseph W.
Technigaz
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