Bottom nozzle with internal debris filter
AssigneeWestinghouse Electric Corp.
InventorsMichael E. Conner, Thanh H. Do, Caroline K. Duncan, Robert A. Brewster, Artem Aleshin
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Abstract
A debris filter bottom nozzle for a nuclear reactor fuel assembly. The nozzle comprising venturi-shaped flow passages within a plate body. At least one flow passage has a filter therein, with the uppermost and lowermost ends of the filter being situated between the upper and lower ends of the flow passage. The plate body, the flow passages, and each filter are co-formed as a single piece unitary body. The co-forming may be via additive manufacturing.
Claims16
A debris filter bottom nozzle configured for use in a nuclear reactor fuel assembly, the debris filter bottom nozzle comprising:
- a plate body;
- a plurality of flow passages formed within the plate body, wherein each flow passage of the plurality of flow passages comprises an inlet proximal to a first surface of the plate body and an outlet proximal to a second surface of the plate body, wherein the second surface is opposite the first surface,
- wherein at least one flow passage of the plurality of flow passages has a filter respectively positioned therein, the filter comprising an uppermost end and a lowermost end,
- wherein each of the at least one flow passage comprises a venturi-shape having:
- an upper end in communication with the outlet and defining a first diameter;
- a central portion defining a second diameter;
- and
- a lower end in communication with the inlet and defining a third diameter;
- the second diameter being less than the first diameter and the third diameter,
- wherein the uppermost end of the filter and the lowermost end of the filter are situated between the upper end of the venturi-shape and the lower end of the venturi-shape, and
- wherein the plate body, the plurality of flow passages, and each filter are co-formed as a single piece unitary body.
Dependencies are inferred from the claim text.