Pump station for radioactive waste water
AssigneeThe United States of America as represented by the United States Department of Energy
InventorsJohn P. Whitton, Dean M. Klos, Danny T. Carrara, John J. Minno
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Abstract
A pump station for transferring radioactive particle containing waste water, includes: (a.) an enclosed sump having a vertically elongated right frusto conical wall surface and a bottom surface and (b.) a submersible volute centrifugal pump having a horizontally rotating impeller and a volute exterior surface. The sump interior surface, the bottom surface and the volute exterior surface are made of stainless steel having a 30 Ra or finer surface finish. A 15 Ra finish has been found to be most cost effective. The pump station is used for transferring waste water, without accumulation of radioactive fines.
Claims18
A pump station for transferring radioactive particle containing waste water, including:
- a. an enclosed sump having:
- i. a vertically elongated generally frusto conical wall having a sump interior surface arcuately joined to
- ii. a bottom surface, the enclosed sump containing:
- b. a submersible volute centrifugal pump having:
- i. a volute having a volute exterior surface and a volute inlet providing entry to
- ii. a horizontally rotating impeller, the sump interior surface, the bottom surface and the volute exterior surface having a 30 Ra or finer surface finish.
A pump station for transferring radioactive particle containing waste water, including:
- a. an enclosed first sump having:
- i. a vertically elongated generally frusto conical wall having a sump interior surface arcuately joined to
- ii. a bottom surface,
- b. a submersible volute centrifugal pump contained in the enclosed sump, the volute centrifugal pump having:
- i. a volute having a volute exterior surface and a volute inlet providing entry to
- ii. a horizontally rotating impeller,
- c. a second containment sump enclosing the first sump,
- d. first sump outlet conduits including:
- i. a pump discharge conduit having a 10 micron or finer filter, and
- ii. a vapor vent conduit having a particulate filter, the sump interior surface, the bottom surface and the volute exterior surface having a 30 Ra or finer surface finish.
A pump station for transferring radioactive particle containing waste water, including:
- a. an enclosed sump having:
- i. a vertically elongated generally frusto conical wall having a sump interior surface arcuately joined to
- ii. a bottom surface, the enclosed sump containing:
- b. a submersible volute centrifugal pump having a horizontally rotating impeller, the sump interior surface and the bottom surface made of a stainless steel having a 30 Ra or finer surface finish.
Dependencies are inferred from the claim text.