EMERGENCY HEAT EXCHANGER FOR COOLING THE PRIMARY FLUID OF A NUCLEAR REACTOR, AND METHOD OF ASSEMBLING THIS HEAT EXCHANGER

摘要

A liquid metal cooled pool type nuclear reactor incorporates an emergency heat exchanger having a novel geometry. The heat exchanger comprises circular and annular tube plates coaxially aligned. The tube bundle has a vertical straight part connected to the central tube plate, a bent horizontal circular portion extending over one-third of the heat exchanger's circumference for returning the bundle, and a vertical straight return part joining the peripheral tube plate.