SEPARATE TYPE SAFETY INJECTION TANK

摘要

Provided is a separation type safety injection tank comprising a coolant injection part connected to a nuclear furnace tank by a safety injection pipe to inject coolant, internally filled, into the nuclear furnace tank by a difference between the pressure of the coolant and the pressure within the nuclear furnace tank when a loss-of-coolant accident occurs; a gas injection part communicating with the coolant injection part, and when a coolant leakage accident occurs, inducing inner gas into the upper part of the safety injection tank to pressurize the coolant injected into the nuclear furnace tank; and an orifice installed between the coolant injection part and the gas injection part for reducing the flow area of the gas induced into the coolant injection part and maintaining the flow rate and flux of the gas, induced into the coolant injection part, at the critical flow rate and flux if a pressure difference more than a critical pressure difference is created between the coolant injection part and the gas injection part.