Passive system for exhausting residual heat from nuclear reactors.

摘要

A system (10) for exhausting residual heat from a nuclear reactor (1), the system transferring first heat from a primary fluid (5) of a nuclear reactor (1) to a secondary fluid (15). Heat exchanger (11), second heat exchanger (12), wherein the secondary fluid (15) is cooled by an auxiliary fluid (16) across the cooling duct (17) and a control part (40), where it undergoes thermal expansion due to the effect of heating the secondary fluid (15) in the control portion (40), induced by an increase in the temperature of the primary fluid (5) exceeding a predetermined threshold. Including, the control part (40) to open the cooling duct (17) and allow the auxiliary fluid (16) to pass through the second heat exchanger (12) into the cooling duct (17). , Mechanical actuators moved by thermal expansion of the control part (40) It is connected to Joo eta device (32), the system (10).