Automatic leakage detection system for pipelines carrying fluids

Details Automatic leakage detection system for pipelines carrying fluids Automatic leakage detection system for pipelines carrying fluids

1976-02-17

1978-01-03

Woodiel, Donald O.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

73 405A, 137460, F16K 1720, G01M 308

Patent

active

040660958

ABSTRACT:
A plurality of ultrasonic flow meter measurement probes are located at spaced intervals along the length of a pipeline carrying a fluid and each probe measures the rate of flow of the fluid at each location along the line. If a leak develops at any point along the pipeline the nearest probe located upstream from the leak will read higher than the measurement being made by the nearest downstream flow meter probe. The difference in readings between the adjacent probes will be an indication of the magnitude of the leak and when the difference exceeds a preset threshold limit an alarm will sound and a coded command signal will be transmitted from the data monitoring center to initiate the immediate closing of the nearest upstream and downstream shut-off valves in the vicinity of the leak. This procedure will immediately isolate the damaged section of the pipe and prevent uncontrolled leakage of the fluid into the environment. The location of the damage along the pipeline is instantly displayed on a central panel so that a service crew can be immediately dispatched to the exact location of the fault to make the necessary repairs.

REFERENCES:
patent: 1881543 (1932-10-01), Hartig et al.
patent: 2151203 (1939-03-01), Hartig
patent: 3695094 (1972-10-01), Hulme

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