Fluid leak detection process and installation

Details Fluid leak detection process and installation Fluid leak detection process and installation

G - Physics

01

M

340/102, 340/145

G01M 3/28 (2006.01) F17D 5/06 (2006.01) G01L 13/06 (2006.01)

Patent

CA 1041192

Abstract of the Disclosure A process and an installation for detecting a fluid leak in a pipe sub-divided into sealable sections by a series of isolating valves. The pressure difference between a reference pressure and the instantaneous pressure in a pipe section is continuously compared to a pressure differ- ence threshold value. When this threshold value is exceeded, the instantaneous gas pressure in the pipe section is stored as new reference pressure and a second comparison cycle is performed using this new reference pressure. The closing of at least one of the isolating valves arranged at the ends of said pipe section is controlled if the pressure difference threshold value is again exceeded during said second comparison cycle and within a predetermined time starting from the beginning of this second comparison cycle.

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