G21C19/02

Pellet handling apparatus and fuel rod loading method
10720252 · 2020-07-21 · ·

A pellet magazine includes a plurality of pellet bores sized to receive pellets for loading into a fuel rod. A fuel rod loading system includes a plurality of pellet loading stations each designated to load a single pellet type into one or more pellet bores of the pellet magazine, a rod loading station configured to unload pellets from the pellet bores of the pellet magazine into a fuel rod, and a conveyance system configured to transport the pellet magazine to the loading stations and then to the rod loading station in a defined sequence.

Pellet handling apparatus and fuel rod loading method
10720252 · 2020-07-21 · ·

A pellet magazine includes a plurality of pellet bores sized to receive pellets for loading into a fuel rod. A fuel rod loading system includes a plurality of pellet loading stations each designated to load a single pellet type into one or more pellet bores of the pellet magazine, a rod loading station configured to unload pellets from the pellet bores of the pellet magazine into a fuel rod, and a conveyance system configured to transport the pellet magazine to the loading stations and then to the rod loading station in a defined sequence.

PELLET HANDLING APPARATUS AND FUEL ROD LOADING METHOD
20200203030 · 2020-06-25 ·

A pellet magazine includes a plurality of pellet bores sized to receive pellets for loading into a fuel rod. A fuel rod loading system includes a plurality of pellet loading stations each designated to load a single pellet type into one or more pellet bores of the pellet magazine, a rod loading station configured to unload pellets from the pellet bores of the pellet magazine into a fuel rod, and a conveyance system configured to transport the pellet magazine to the loading stations and then to the rod loading station in a defined sequence.

Sealing device between a tube and a column passing through the latter, method for mounting same
10692614 · 2020-06-23 · ·

The invention relates to a sealing device (30) intended to be fixed against an edge of a tube and against a column. According to the invention, the body (3060) thereof comprises guides (3030), distributed around its cavity (316) between an inner side (3064) that opens into the cavity (316) and an outer side (3062) that opens out against a concentric clamping ring (305), mounted so as to rotate about the axis (A), fingers (303) integral with outer actuating members (3031) being guided in the guides (3030), the ring (305) having actuating zones (3051) that are able to be positioned against the members (3031) so as make the fingers (303) protrude into the cavity (316) by sliding in order to clamp the fingers (303) against the edge of the tube when the ring (305) and the base (306) are in a first position of relative rotation, the ring (305) and the base (306) being able to pass, by rotation about the axis (A), between the first position and a second position in which the zones (3051) are spaced apart from the members (3031) so as to allow the fingers (303) to be returned into the body (3060).

Sealing device between a tube and a column passing through the latter, method for mounting same
10692614 · 2020-06-23 · ·

The invention relates to a sealing device (30) intended to be fixed against an edge of a tube and against a column. According to the invention, the body (3060) thereof comprises guides (3030), distributed around its cavity (316) between an inner side (3064) that opens into the cavity (316) and an outer side (3062) that opens out against a concentric clamping ring (305), mounted so as to rotate about the axis (A), fingers (303) integral with outer actuating members (3031) being guided in the guides (3030), the ring (305) having actuating zones (3051) that are able to be positioned against the members (3031) so as make the fingers (303) protrude into the cavity (316) by sliding in order to clamp the fingers (303) against the edge of the tube when the ring (305) and the base (306) are in a first position of relative rotation, the ring (305) and the base (306) being able to pass, by rotation about the axis (A), between the first position and a second position in which the zones (3051) are spaced apart from the members (3031) so as to allow the fingers (303) to be returned into the body (3060).

Sample container, sampling system, nuclear power plant and corresponding operating method
10670746 · 2020-06-02 · ·

A sample container, sampling system and operating methods permit representative sampling from a liquid phase or boiling liquid, a gaseous phase, a containment sump, containment atmosphere, or condensation chamber of a nuclear power plant following a severe accident. A sample container obtaining an environmental sample includes an outer chamber surrounded by an outer container wall, being directly fluidically connected to the environment through a passage opening in the outer container wall and being fillable with a liquid at least in a base region. An inner chamber surrounded by an inner container wall is fluidically connected to the base region through a passage opening in the inner container wall, has connections for sampling and conveyor medium lines and is otherwise pressure and media tightly sealed from the environment. A pneumatically or hydraulically actuatable closure device for the passage opening between the outer and inner chambers has an actuation medium line connection.

APPARATUS AND METHODS FOR GRAPPLING INSTRUMENTS
20240021329 · 2024-01-18 ·

An apparatus, such as a grapple device, may include a mounting plate that includes a top end and a bottom end. The grapple device may include a first fork coupled near the top end of the mounting plate and a second fork coupled near the bottom end. The first fork may include a first elongated member and a second elongated member and the second fork may include a third elongated member and a fourth elongated member. The first elongated member may be longer than the second elongated member. The grapple device may also include a lifting member coupled to the mounting plate and a lifting ring configured to move along the lifting member. The grapple device may also include a locking plate that includes an aperture. The grapple device may also include a cylinder and a locking pin coupled to the cylinder and configured to engage the aperture.

APPARATUS AND METHODS FOR GRAPPLING INSTRUMENTS
20240021329 · 2024-01-18 ·

An apparatus, such as a grapple device, may include a mounting plate that includes a top end and a bottom end. The grapple device may include a first fork coupled near the top end of the mounting plate and a second fork coupled near the bottom end. The first fork may include a first elongated member and a second elongated member and the second fork may include a third elongated member and a fourth elongated member. The first elongated member may be longer than the second elongated member. The grapple device may also include a lifting member coupled to the mounting plate and a lifting ring configured to move along the lifting member. The grapple device may also include a locking plate that includes an aperture. The grapple device may also include a cylinder and a locking pin coupled to the cylinder and configured to engage the aperture.

FLOATING MAINTENANCE PLATFORM FOR NUCLEAR FACILITY
20240021330 · 2024-01-18 ·

A platform comprises a floor comprising beams and removable slabs supported by the beams; and a floating support, arranged to float on the water filling a pool of the nuclear facility, a peripheral edge of the floor resting on the floating support. The floating support can annular and can internally define an opening. The floor can completely close the opening.

FLOATING MAINTENANCE PLATFORM FOR NUCLEAR FACILITY
20240021330 · 2024-01-18 ·

A platform comprises a floor comprising beams and removable slabs supported by the beams; and a floating support, arranged to float on the water filling a pool of the nuclear facility, a peripheral edge of the floor resting on the floating support. The floating support can annular and can internally define an opening. The floor can completely close the opening.