Separation and receiving device for spent nuclear fuel rods
AssigneesKorea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
InventorsJaehoo Jung, Jisup Yoon, Younghwan Kim, Jaehyun Jin, Donghee Hong
Life of this patent
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Abstract
Disclosed is a separation and receiving apparatus for a spent nuclear fuel rod. The spent nuclear fuel rod is mounted and downwardly transferred by a pin. At this time, a blade peels the hull of the spent nuclear fuel rod. The hull and a pellet positioned therein are separated by a separator. The peeled hull and pellet are each received in respective receiving vessels. Accordingly, since the hull and pellet made of uranium oxide (UO2) may be automatically separated and received in each respective vessel, safety and automation may be guaranteed.
Claims19
A separation and receiving apparatus of a hull and a pellet from a spent nuclear fuel rod, the apparatus comprising:
- a driving unit comprising a pin for pressing the spent nuclear fuel rod;
- a slitting unit comprising a blade portion cutting the hull of the nuclear fuel rod the nuclear fuel rod moving according to the pressing of the pin and a separator separating the hull cut by the blade portion and the pellet positioned within the hull;
- and
- a receiving unit receiving each the hull and the pellet in separate vessels,
- wherein the receiving unit is configured to automatically receive the separated pellet and hull in the separated vessels immediately after leaving the slitting unit during the pressing of the pin,
- wherein the vessel for receiving the separated hull has a plurality of passing holes formed on the side of the pellet vessel at intervals of 120 degrees according to a circumferential direction of the pellet vessel for receiving a respective portion of the separated hull during the pressing of the pin,
- wherein a hull guide guiding the peeled hull by the blade portion is inwardly concaved from the outside of the separator.
A separation and receiving apparatus of a spent nuclear fuel rod for separating and storing a hull and a pellet from a nuclear fuel rod, the apparatus comprising:
- a driving unit comprising a pin for downwardly pressing the nuclear fuel rod;
- a slitting unit comprising a nuclear fuel rod guide offering a passage to vertically pass the nuclear fuel rod according to the downward pressing of the pin and a blade module vertically peeling a hull of the nuclear fuel rod passing through the passage of the nuclear fuel rod guide, the blade module comprising a plurality of blades provided according to the passage;
- a separator in the shape of a cone having a passing hole in its center;
- a pellet receiving portion provided below the passing hole;
- and
- a hull receiving portion provided around the passing hole,
- wherein the receiving portions are configured to automatically receive the separated pellet and hull immediately after leaving the slitting unit during the downward pressing of the pin,
- wherein the receiving portion for receiving the separated hull has a plurality of passing holes formed on the side of the pellet vessel at intervals of 120 degrees according to a circumferential direction of the pellet vessel for receiving a respective portion of the separated hull during the pressing of the pin,
- wherein a hull guide guiding the peeled hull by the blade portion is inwardly concaved from the outside of the separator.
Dependencies are inferred from the claim text.