| 摘要 |
The present invention relates to a nuclear fuel bundle assembly which is installed in a row on a channel of a heavy water reactor. The nuclear fuel bundle assembly includes: a fuel cell bundle in which multiple nuclear fuel rods, filled with fuel pellets, are bundled to be closed to each other; a pressure tube which includes the nuclear fuel bundle, arranged therein, and spaces for circulating a coolant between the nuclear fuel rods; an end plate which is attached to an end portion of the nuclear fuel bundle and fixates the nuclear fuel rods; and a protrusion unit which is formed on the end plate, protrudes in the direction opposite to the direction of the nuclear fuel rods, and is formed to rotate with an adjacent nuclear fuel bundle as the protrusion unit is snagged by the end plate, arranged on another nuclear fuel bundle, arranged to be closed to the adjacent nuclear fuel bundle. |
