PASSIVE TYPE EMERGENCY CORE COOLING SYSTEM FOR AN INTEGRAL REACTOR WITH A SAFEGUARD VESSEL

摘要

A passive type emergency core cooling system of an integral reactor having a safeguard vessel is provided to reduce a manufacturing cost and power consumption by having an emergency core cooling facility as a pressure limitation pool, and a safe insertion tank and a collection tank which are passively operated in a loss of a coolant accident. A passive type emergency core cooling system of an integral reactor having a safeguard vessel includes a safeguard vessel(20), a safe insertion tank(21), a collection tank(22), a pressure limitation pool(23), and a connection tube(33). The safeguard vessel covers an outer circumference of a reactor vessel(11). The safe insertion tank is installed the safeguard vessel, and is connected to a safe insertion nozzle(17) of the reactor vessel through a first safe insertion tube. The collection tank is formed on an upper part of an internal wall of the safeguard vessel along a circumference of an internal wall, and is connected to the safe insertion nozzle through a second safe insertion tube. The pressure limitation pool is installed inside the safeguard vessel. An end of the connection tube is connected to the pressure limitation pool. The other end of the connection tube is formed to be extended to a stand-by area of an upper part of the collection tank.