SYSTEM OF LONG-TERM HEAT REMOVAL FROM THE PROTECTIVE SHELL Russian patent published in 2023 - IPC G21C15/12 

FIELD: nuclear power plant reactors.

SUBSTANCE: invention relates to a system for long-term heat removal from the containment shell of a nuclear power plant reactor. The system contains a cold circuit and a hot circuit, while the cold circuit contains a make-up pumping station 1, which on the one hand is connected to the coolant source of the cold circuit and on the second side is connected to a fine impurities filter 2, which is connected to the main pumping station 3, connected by means of an inlet valve 4 with turbine 5, and then through the cold circuit of the cooler 6 and outlet valve 7 with the coolant source of the cold circuit. The hot circuit contains a pump 8 of the hot circuit, at the outlet connected through the hot circuit of the cooler 6 with a shower unit 9 located in the containment 10, and at the inlet through a mechanical strainer 11 to the heat carrier source of the hot circuit. The main pumping station 3 is connected via the primary branch 19a for additional cooling of the thermal circuit with the inlet of the pump 8 of the hot circuit. The coolant in the cold circuit is mixed with the coolant in the hot circuit.

EFFECT: improving the safety of nuclear power plants by increasing the efficiency of long-term heat removal from the containment.

3 cl, 1 dwg