Tank depletion flow controller
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:
-
- Idaho Falls, ID
- Issue Date:
- 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):
-
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G - PHYSICS G05 - CONTROLLING G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- 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.
Georgeson, Melvin A. Tank depletion flow controller. United States.
Georgeson, Melvin A. Tue .
"Tank depletion flow controller". United States. https://www.osti.gov/servlets/purl/862676.
@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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