Reactor container

Object: To stand a vapor passage extending through a diaphragm floor from a bottom of a pressure restraining chamber and to position a steam ejecting outlet, which is disposed in pressure restraining water, so as not to directly be directed toward the body of a container and the bottom of the pressure restraining chamber, thereby eliminating influence due to blow-off condensation of steam. Structure: In an arrangement wherein a container is divided by a diaphragm floor into two portions, i.e., an upper drywell and a lower pressure restraining chamber containing pressure restraining water to from a steam communicating duct which communicates said drywell with said pressure restraining chamber, said communicating duct being stood extending through the diaphragm floor from the bottom of the pressure restraining chamber, and a steam ejecting outlet of said communicating duct disposed in pressure restraining water being fitted so as not to directly be directed toward the body of the container and the bottom of the pressure restraining chamber. (Ohara, T.)