Apparatus for controlling coolant level in a liquid-metal-cooled

Details Apparatus for controlling coolant level in a liquid-metal-cooled Apparatus for controlling coolant level in a liquid-metal-cooled

1977-04-20

1978-09-12

Behrend, Harvey E.

176 38, 176 50, G21C 102

Patent

active

041135628

ABSTRACT:
A liquid-metal-cooled fast-breeder reactor which has a thermal liner spaced inwardly of the pressure vessel and includes means for passing bypass coolant through the annulus between the thermal liner and the pressure vessel to insulate the pressure vessel from hot outlet coolant includes control ports in the thermal liner a short distance below the normal operating coolant level in the reactor and an overflow nozzle in the pressure vessel below the control ports connected to an overflow line including a portion at an elevation such that overflow coolant flow is established when the coolant level in the reactor is above the top of the coolant ports. When no makeup coolant is added, bypass flow is inwardly through the control ports and there is no overflow; when makeup coolant is being added, coolant flow through the overflow line will maintain the coolant level.

REFERENCES:
patent: 3275521 (1966-09-01), Schluderberg et al.
patent: 3994777 (1976-11-01), Severson
patent: 4001079 (1977-01-01), Rylatt

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