| 摘要 |
PROBLEM TO BE SOLVED: To allow a containment vessel cooling fluid supply apparatus that enhances cooling efficiency of a containment vessel of a pressurized-water reactor to be provided.SOLUTION: A containment vessel cooling fluid supply apparatus provided at a dome-shaped roof portion of a containment vessel of a pressurized-water reactor comprises: a cooling piping section comprising linear piping that is provided above a top portion of the dome-shaped roof portion at a predetermined interval with respect to the top portion and is provided with a shower section at a lower end thereof and spiral piping that is formed so as to branch from the linear piping, is provided above the dome-shaped roof portion at predetermined intervals with respect to the dome-shaped roof portion, covers at least a position of the dome-shaped roof portion by being outwardly spread in a spiral manner in a radial direction of the dome-shaped roof portion and has a plurality of holes formed in a lengthwise direction thereof; and water spray piping that is coupled to the linear piping and supplies cooling water to the linear piping and to the spiral piping. |
