Pump tank divider plate for sump suction sodium pumps

Patent · 31 December 1976

OSTI ID:862852

George, John A ^[1]; Nixon, Donald R ^[2]

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1. Greensburg, PA
2. Murrysville, PA

A circular plate extends across the diameter of "sump suction" pump, with a close clearance between the edge of the plate and the wall of the pump tank. The plate is located above the pump impeller, inlet and outlet flow nozzles but below the sodium free surface and effectively divides the pump tank into two separate chambers. On change of pump speed, the close fitting flow restriction plate limits the rate of flow into or out of the upper chamber, thereby minimizing the rate of level change in the tank and permitting time for the pump cover gas pressure to be varied to maintain an essentially constant level.

• Research Organization: Westinghouse Electric Corp., Madison, Pa.
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 4029123
• OSTI ID: 862852
• Country of Publication: United States
• Language: English

Related Subjects

/137/417/
below
chamber
chambers
change
circular
circular plate
clearance
close
close fit
constant
constant level
cover
cover gas
diameter
divider
divides
edge
effectively
essentially
essentially constant
extends
fitting
flow
flow nozzles
flow restriction
free
free surface
gas
gas pressure
impeller
inlet
level
limits
located
maintain
minimizing
nozzles
outlet
outlet flow
permitting
plate
plate extends
pressure
pump
pump impeller
pump tank
pumps
rate
restriction
separate
separate chambers
sodium
sodium pump
sodium pumps
speed
suction
sump
sump suction
surface
tank
time
upper
upper chamber
varied
wall