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Title: Pump tank divider plate for sump suction sodium pumps

Abstract

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.

Inventors:
 [1];  [2]
  1. Greensburg, PA
  2. Murrysville, PA
Issue Date:
Research Org.:
Westinghouse Electric Corp., Madison, Pa.
OSTI Identifier:
862852
Patent Number(s):
4029123
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
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
DOE Contract Number:  
AT(30-1)-3762
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pump; tank; divider; plate; sump; suction; sodium; pumps; circular; extends; diameter; close; clearance; edge; wall; located; impeller; inlet; outlet; flow; nozzles; below; free; surface; effectively; divides; separate; chambers; change; speed; fitting; restriction; limits; rate; upper; chamber; minimizing; level; permitting; time; cover; gas; pressure; varied; maintain; essentially; constant; pump tank; separate chambers; pump impeller; upper chamber; gas pressure; cover gas; sump suction; sodium pumps; outlet flow; free surface; flow restriction; essentially constant; circular plate; constant level; flow nozzles; close fit; sodium pump; plate extends; /137/417/

Citation Formats

George, John A, and Nixon, Donald R. Pump tank divider plate for sump suction sodium pumps. United States: N. p., 1977. Web.
George, John A, & Nixon, Donald R. Pump tank divider plate for sump suction sodium pumps. United States.
George, John A, and Nixon, Donald R. Sat . "Pump tank divider plate for sump suction sodium pumps". United States. https://www.osti.gov/servlets/purl/862852.
@article{osti_862852,
title = {Pump tank divider plate for sump suction sodium pumps},
author = {George, John A and Nixon, Donald R},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

Patent:

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