Nuclear reactor insulation and preheat system

Details Nuclear reactor insulation and preheat system Nuclear reactor insulation and preheat system

1976-09-27

1978-10-03

Nelson, Peter A.

176 38, 52224, G21C 1310

Patent

active

041182782

ABSTRACT:
An insulation and preheat system for preselected components of a fluid cooled nuclear reactor. A gas tight barrier or compartment of thermal insulation surrounds the selected components and includes devices to heat the internal atmosphere of the compartment. An external surface of the compartment or enclosure is cooled, such as by a circulating fluid. The heating devices provide for preheating of the components, as well as maintenance of a temperature sufficient to ensure that the reactor coolant fluid will not solidify during shutdown. The external cooling limits the heat transferred to other plant structures, such as supporting concrete and steel. The barrier is spaced far enough from the surrounded components so as to allow access for remote or manual inspection, maintenance, and repair.

REFERENCES:
patent: 3155595 (1964-11-01), Schluderberg
patent: 3188799 (1965-06-01), Flynn
patent: 3396079 (1968-08-01), Finzi et al.
patent: 3453177 (1969-07-01), Bilsborough et al.
patent: 3930939 (1976-01-01), Bittermann et al.
patent: 3991899 (1976-11-01), Vaessen

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