G - Physics – 01 – F
Patent
G - Physics
01
F
G01F 1/00 (2006.01) G01F 1/08 (2006.01) G01F 1/12 (2006.01)
Patent
CA 2233562
The device for metering the volume of gas flowing in a pipe, downstream from an expander-regulator, comprises in succession a flow straightener, a velocity-measuring flowmeter, and a silent flowrate limiter. The straightener comprises a support ring in which there are mounted a first perforated plate having holes distributed over its surface, together with a first porous plate and a spacer in the form of an annulus co-operating with the first perforated plate. The limiter comprises an upstream web defining a second perforated plate perforated by a defined number of calibrated holes, the total flow section thereof being much less than the total flow section of the first perforated plate, a second perforated plate, and a downstream web defining a third perforated plate having holes of total flow section that is much greater than the total flow section of the second perforated plate of the upstream web.
Cornil Jean-Philippe
de Laharpe Vincent
Dutertre Dominique
Mode Laurent
Gaz de France
Gdf Suez
Robic
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