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Molten fuel nuclear reactor with neutron reflecting coolant

專利號
US10867710B2
公開日期
2020-12-15
申請人
TerraPower, LLC（US WA Bellevue）
發(fā)明人
Anselmo T. Cisneros, Jr.; Charles Gregory Freeman; Kevin Kramer; Jeffery F. Latkowski
IPC分類
G21C7/28; G21C3/54; G21C1/02; G21C7/22; G21C1/22; G21C15/28; G21C1/32; G21C7/27; G21C11/06; G21C15/02
技術(shù)領(lǐng)域
neutron,reflector,reactor,fuel,neutrons,in,core,flowing,material,molten
地域： WA WA Bellevue

摘要

Configurations of molten fuel salt reactors are described that utilize neutron-reflecting coolants or a combination of primary salt coolants and secondary neutron-reflecting coolants. Further configurations are described that circulate liquid neutron-reflecting material around a reactor core to control the neutronics of the reactor. Furthermore, configurations which use the circulating neutron-reflecting material to actively cool the containment vessel are also described. A further configuration is described that utilizes a core barrel between a reactor core volume of molten fuel salt and a reflector volume, in which the reflector volume contains a plurality of individual reflector elements separated by an interstitial space filled with molten fuel salt.

說明書

FIG. 1 is a schematic view of an example molten salt reactor (MSR) system 100 enabling an open breed-and-burn fuel cycle with fuel feed 102 and fuel outlet 104. The fuel outlet 104 flows molten fuel salt 108 from a reactor vessel 107 through a primary coolant loop to an external heat exchanger (not shown), which extracts heat (e.g., for use in a steam turbine) and cools the molten fuel salt 108 for return to the reactor vessel 107 via the fuel feed 102. The molten fuel salt 108 flows into the reactor vessel 107 through a molten fuel salt input 111 and flows out of the reactor vessel 107 through a molten fuel salt output 113.

The reactor core section 106 is enclosed by the reactor vessel 107, which may be formed from any material suitable for use in molten salt nuclear reactors. For example, the bulk portion of the reactor core section 106 may be formed from one or more molybdenum alloys, one or more zirconium alloys (e.g., Zircaloy), one or more niobium alloys, one or more nickel alloys (e.g., Hastelloy N) or high temperature steel and other similar materials. The internal surface 109 of the reactor core section 106 may be coated, plated or lined with one or more additional material in order to provide resistance to corrosion and/or radiation damage.

權(quán)利要求

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