Other

Hideo Morishima

Kenji Tominaga

Kumiaki Moriya

Tooru Takahashi

Tetsuo Horiuchi

Tsuyoshi Niino

Minoru Miki

Shouichirou Kinoshita

Kanehiro Ochiai

Masaki Matsumoto

Minoru Akita

Takashi Nakayama

Yuichi Uchiyama

Kazuo Kage

Ryuji Kubota

Toyoharu Yasuno

Kenji Moriya

Akihiko Shiozawa

A nuclear reactor facility including a primary containment vessel, a reactor pressure vessel installed in the primary containment vessel and accommodating a reactor core in a lower part thereof, and a vertical cylindrical wall disposed in a lower part of the primary containment vessel around and spaced from the reactor pressure vessel so as to delimit an annular space therebetween. The vertical cylindrical wall has an upper end disposed at a position higher than an upper end of the reactor core and a diaphragm extends substantially horizontally between the upper end of the vertical cylindrical wall and an inner wall of the primary containment vessel for cooperating with the vertical cylindrical wall to separate a space in the primary containment vessel around the reactor pressure vessel into a pressure suppression chamber and a drywell which includes annular space. The pressure suppression chamber accommodates therein a pool of liquid coolant wherein a level of the liquid coolant of the pool is higher than the upper end of the reactor core. The vertical cylindrical wall has a plurality of vent passages having an upper part at the upper end of the vertical cylindrical wall and exposed to the drywell and a lower part exposed to the pool of the liquid coolant in the pressure suppression chamber. A submergence line and a channel member are also provided.

Nuclear power facilities

Growing community of inventors

Hitachi-shi, Japan

Hideo Morishima