Device for measuring mass flow

Details Device for measuring mass flow Device for measuring mass flow

1977-08-25

1978-12-26

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Combined

73205D, 73228, 62 49, G01F 128

Patent

active

041310152

ABSTRACT:
Measuring the mass flow of a liquid gas pumped from a storage tank to a consumer through a measuring station, includes the steps of throttling the flow of the liquid gas by a throttle in the measuring station; measuring the flow of the liquid gas according to the relationship ##EQU1## WHEREIN M is the flow rate, C and m are instrument constants evaluated by calibration, .DELTA.p is the head difference and .rho. is the liquid density; maintaining the delivery pressure of the liquid gas higher than its vapor pressure plus the maximum momentary head difference at the throttle; and compensating for the temperature-caused liquid density variation, including the steps of measuring the temperature of the liquid gas by a semiconductor having a resistance/temperature curve and adapting the curve to the density/temperature curve of the liquid gas.

REFERENCES:
patent: 2022695 (1935-12-01), Stuart
patent: 2284013 (1942-05-01), Pardoe
patent: 2291678 (1942-08-01), Benz et al.
patent: 2402355 (1946-06-01), Whaley, Jr.
patent: 2954692 (1960-10-01), Hornfeck
patent: 3173003 (1965-03-01), Moller-Girard
patent: 3247713 (1966-04-01), Reed
patent: 3691838 (1972-08-01), Kalotay
patent: 4000603 (1977-02-01), Golahny

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