Passive Safety System of Integral Reactor

The present invention relates to a passive safety system of a nuclear reactor, in particular nuclear reactor containment and; And the reactor is installed in the nuclear reactor containment; The first is by the safety injection pipe communicating safety injection pipe connected to the reactor, and the water and the nitrogen gas filled in the inside, when the inside the reactor water level decreases to the generation of loss-of-coolant accident through the first safety injection pipe safety injection tank for supplying water into the reactor, and; Second safety injection being by the safety injection pipe in communication with the pipe connected to the reactor, and the water stored therein, the coolant loss and the second safety injection when the internal nuclear reactor water level decreased to accident or the occurrence of a non-loss-of-coolant accident core replacement tank through a pipe feeding water into the reactor, and; Is composed of; passive residual heat removal system for removing decay heat of the nuclear reactor, when connected to a water supply pipe and steam pipes connected to the steam generator is installed in the interior of the reactor is a loss-of-coolant accident or a non-loss-of-coolant accident occurs; When the loss-of-coolant accident occurs remove reliably the residual heat of the reactor core to the driven residual heat removal system, and the water received in a safety injection tank, and a long time stably fed to the head drive reactor by the gas pressure or gravity, and is stored in the core replacement tank there is an effect that water can be supplied to the reactor.