Reactor internal pump maintenance cover
AssigneeGeneral Electric Company
InventorKirti Kumar
Life of this patent
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Abstract
A maintenance cover for use in a nuclear reactor including a pump deck having at least one pump diffuser opening is described. The cover includes, in one embodiment, a substantially cylindrical member having a first end and a second end. The first end has a diameter larger than the diameter of the pump diffuser opening. The substantially cylindrical member includes a substantially cylindrical frame having a plurality of window openings formed therein. Grating is secured to the frame and extends over the window openings. The cover further includes an end member secured to and positioned over the second end of the substantially cylindrical member. The end member also includes grating. A handle is secured to the substantially cylindrical member.
Claims16
A maintenance cover for use in a nuclear reactor including a pump deck having at least one pump diffuser opening having a first diameter, said cover comprising:
- a substantially cylindrical member having a first end and a second end, said first end having a second diameter, said second diameter being at least equal to the first diameter;
- and
- an end member secured to and positioned over said second end of said substantially cylindrical member.
A cover for use in a nuclear reactor including a pump deck having at least one pump diffuser opening having a first diameter, said cover comprising grating configured to be positioned over the diffuser opening, said grating configured to allow water flow therethrough and to substantially prevent tools from passing therethrough.
A method for preventing objects from falling into the diffuser space in a reactor pressure vessel of a nuclear reactor, the nuclear reactor including a pump deck having at least one pump diffuser opening, the diffuser opening having a first diameter, said method comprising the steps of:
- lowering a cover into the reactor pressure vessel, and
- positioning the cover in preventive position over the diffuser opening, whereby the lower end of the cover is above the diffuser opening.
Dependencies are inferred from the claim text.