Method and apparatus for determining characteristics of fluid fl

Details Method and apparatus for determining characteristics of fluid fl Method and apparatus for determining characteristics of fluid fl

1993-08-25

1994-11-15

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Combined

138 37, 138 40, 239 74, 239461, G01F 1500, F15D 102

Patent

active

053636996

ABSTRACT:
Highly reliable measurements of the fluid and/or fluid flow in a conduit are obtained by insertion within the conduit, upstream of a fluid measuring or sampling device, of a fluid flow straigntening and displacement apparatus which serves to stabilize, homogenize and condition the fluid flow and form at the device a uniform, axially centered, axially symmetrical, well defined and accurately measurable flow profile of large means flow diameter. The flow straightening and fluid displacement apparatus comprises, in sequence in the direction of fluid flow, a first swirl mitigating and flow straightening device, a fluid displacement member comprised of two oppositely facing frustums jointed at their larger ends and mounted coaxially within the conduit, and a second flow straightening device. Advantageous combinations of the flow straightening and fluid displacement apparatus with known measuring and sampling devices are provided.

REFERENCES:
patent: 3049009 (1962-08-01), McCall et al.
patent: 3572117 (1971-03-01), Rodely
patent: 3733898 (1973-05-01), Yamamoto et al.
patent: 4576204 (1986-03-01), Smallhorn et al.
patent: 4638672 (1987-01-01), McCall
patent: 4812049 (1989-03-01), McCall
"McCrometer Flow Measurement Products-A Complete Line of Flowmeters for the Municipal Water and Wastewater Industry", Ketema, Inc., 1991.
"V-Cone Meter", Ketema, Inc., 1993.
"McCrometer Product Data-Fire Hydrant Flowmeter", Ketema, Inc., 1992.

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