| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling facility for a reactor containment vessel capable of uniformly cooling the surface of the reactor containment vessel without being influenced by manufacturing accuracy of the reactor containment vessel. <P>SOLUTION: The cooling facility for the reactor containment vessel cools the inside of the reactor containment vessel by spraying cooling water by a water spray nozzle 12 provided at the upper part of the reactor containment vessel 2. The water spray nozzle 12 includes: a rotating shaft 13 which is rotatable in parallel to the central axis of the reactor containment vessel 2; and a plurality of nozzle parts 14 which are extended outwardly in a radial direction from the rotating shaft 13 and bent in a predetermined direction. In the nozzle parts 14, a plurality of injection holes 15-18 are provided which rotate the rotating shaft 13 by injection force of the cooling water and of which the injection direction for injecting the cooling water to the entire upper surface of the reactor containment vessel 2 is set. <P>COPYRIGHT: (C)2012,JPO&INPIT |
