Accelerator driven lead bismuth cooling subcritical traveling wave reactor

An accelerator-driven, subcritical technology, applied in cooling devices, reactors, nuclear power generation, etc., can solve the problems of high burnup of traveling wave reactors, reduce the practical feasibility of traveling wave reactors, etc., achieve high neutron economy, and eliminate nuclear power. Possibility of critical accident, good effect of safety

Active Publication Date: 2015-03-25
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] 3. In order to maintain the propagating wave and burning wave, the fuel consumption of the traveling wave reactor is required to be higher than 40%, which makes the fuel and cladding material requirements far exceed the current limit standard of less than 20% of the fuel consumption (Yang Bo, Shen T

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  • Accelerator driven lead bismuth cooling subcritical traveling wave reactor

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[0021] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0022] See figure 1 , The accelerator-driven lead-bismuth cooling subcritical traveling wave reactor disclosed in the present invention includes a movable neutron source target 1, a core fuel 2, a reactor internals 3, a main heat exchanger 4, a reactor top cover 5, a reactor vessel 6, and The main pump 7 and the core fuel 2 are divided into four areas: spent fuel area 2-1, incineration wave area 2-2, breeder wave area 2-3, and new fuel area 2-4. The top cover 5 of the stack is in the form of a flat cover and is installed on the upper edge of the stack vessel 6; the internal components 3 of the stack are welded to the position above the bottom head of the stack vessel 6, which is the core fuel 2, the main heat exchanger 4, the main pump 7, etc. Provide support and positioning and separate the cold pool and the hot pool. The upper part of the reactor ...

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Abstract

The invention discloses an accelerator driven lead bismuth cooling subcritical traveling wave reactor. The accelerator driven lead bismuth cooling subcritical traveling wave reactor comprises a mobile neutron source target, a reactor core fuel, a reactor inner component, main heat exchangers, a reactor top cover, a reactor container and a main pump. An external source neutron is provided via the mobile neutron source target; the reactor is started and ignited; the traveling wave type reactor is driven to run under the subcritical state, and a combustion wave and a proliferation wave are continued; meanwhile, the heat of the reactor core is taken out by a lead bismuth cooling agent with good chemical inertness so as to guarantee the safety of the reactor, so that the requirement for high-enrichment-degree fissile nuclear fuels for realizing critical start by the critical traveling wave reactor is prevented, the requirements for reactor core materials and high fuel consumption by the traveling of the proliferation wave are lowered, and the practical feasibility, reliability and safety of the traveling wave reactor are improved effectively.

Description

technical field [0001] The invention belongs to the field of advanced fast neutron reactors, in particular to an accelerator-driven lead-bismuth cooled subcritical traveling wave reactor. Background technique [0002] Traveling wave reactor is a new type of deep burn-up fission reactor that uses natural nuclides or spent fuel as fuel, and the breeding of fertile nuclides and the incineration of fissile nuclides move in traveling waves. The traveling wave propagates in the fuel at a speed of several centimeters per year in the manner of "breeding wave goes forward, burning wave follows", and one charge can run continuously for decades. [0003] At present, the design of TWR is sodium-cooled critical TWR, and the core fuel is divided into waste area, critical area (combustion area, breeding area), and new fuel area. The sodium-cooled critical traveling wave reactor has the following technical shortcomings and deficiencies: [0004] 1. When the traveling wave reactor is initi...

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Application Information

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IPC IPC(8): G21C7/00
CPCG21C7/08G21C15/28Y02E30/30
Inventor 柏云清师雪艳黄超吴宜灿
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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