Tank depletion flow controller

Title: Tank depletion flow controller

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Abstract

A flow control system includes two bubbler tubes installed at different levels within a tank containing such as radioactive liquid. As the tank is depleted, a differential pressure transmitter monitors pressure differences imparted by the two bubbler tubes at a remote, shielded location during uniform time intervals. At the end of each uniform interval, balance pots containing a dense liquid are valved together to equalize the pressures. The resulting sawtooth-shaped signal generated by the differential pressure transmitter is compared with a second sawtooth signal representing the desired flow rate during each time interval. Variations in the two signals are employed by a control instrument to regulate flow rate.

Inventors:

Georgeson, Melvin A ^[1]

Idaho Falls, ID

Issue Date:: 1976-10-26

Research Org.:: Aerojet Nuclear Co., Idaho Falls, Idaho

OSTI Identifier:: 862676

Patent Number(s):: 3987815

Application Number:: 05/592,485

Assignee:: United States of America as represented by United States Energy (Washington, DC)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

G - PHYSICS G05 - CONTROLLING G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/7759 - Responsive to change in rate of fluid flow

G - PHYSICS G05 - CONTROLLING G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D7/0641 - {using a plurality of throttling means

G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G01F1/34 - by measuring pressure or differential pressure

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DOE Contract Number:: AT(10-1)-1375

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: tank; depletion; flow; controller; control; bubbler; tubes; installed; levels; containing; radioactive; liquid; depleted; differential; pressure; transmitter; monitors; differences; imparted; remote; shielded; location; uniform; time; intervals; interval; balance; pots; dense; valved; equalize; pressures; resulting; sawtooth-shaped; signal; generated; compared; sawtooth; representing; desired; rate; variations; signals; employed; instrument; regulate; radioactive liquid; desired flow; tank containing; signal representing; flow control; flow rate; signal generated; differential pressure; time interval; pressure difference; time intervals; flow controller; shielded location; active liquid; /137/73/

Citation Formats


                    Georgeson, Melvin A. Tank depletion flow controller.  United States: N. p., 1976. 
        Web.

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                    Georgeson, Melvin A. Tank depletion flow controller.  United States.

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                    Georgeson, Melvin A. Tue .  
        "Tank depletion flow controller".  United States.  https://www.osti.gov/servlets/purl/862676.

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@article{osti_862676,

  title        = {Tank depletion flow controller},

  author       = {Georgeson, Melvin A},

  abstractNote = {A flow control system includes two bubbler tubes installed at different levels within a tank containing such as radioactive liquid. As the tank is depleted, a differential pressure transmitter monitors pressure differences imparted by the two bubbler tubes at a remote, shielded location during uniform time intervals. At the end of each uniform interval, balance pots containing a dense liquid are valved together to equalize the pressures. The resulting sawtooth-shaped signal generated by the differential pressure transmitter is compared with a second sawtooth signal representing the desired flow rate during each time interval. Variations in the two signals are employed by a control instrument to regulate flow rate.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1976},

  month        = {10}

}

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