Vapor density measurement system

Details Vapor density measurement system Vapor density measurement system

1994-06-13

1996-03-26

Williams, Hezron E.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 3002, 73 3003, 7386104, G01F 174

Patent

active

055010997

ABSTRACT:
The relative amount of liquid and vapor flowing in a pipe is measured by mixing the vapor and liquid into a gaseous like single phase mixture and passing the mixture through a venturi constriction to accelerate it. The pressure drop across the venturi is measured as an indication of the velocity change which varies with the density of the mixture. Mixtures with more liquid generate more pressure drop. The average velocity of the pipe contents is also monitored to eliminate pressure drop changes that result from average velocity changes rather than density changes.

REFERENCES:
patent: Re33909 (1992-05-01), Brenner et al.
patent: 2439723 (1948-04-01), Engdahl
patent: 4662219 (1987-05-01), Nguyen
patent: 4681466 (1987-07-01), Chien et al.
patent: 5031466 (1991-07-01), Redus
patent: 5035146 (1991-07-01), Chien et al.
patent: 5190103 (1993-03-01), Griston et al.
patent: 5302325 (1994-04-01), Cheng

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