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A molten salt fuel multi-stack system

A molten salt and fuel technology, applied in the field of nuclear energy utilization, to achieve the effect of realizing production capacity

Active Publication Date: 2020-11-27
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a new molten salt fuel multi-stack system in order to overcome many problems existing in the design of the existing molten salt reactor

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  • A molten salt fuel multi-stack system
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Embodiment 1

[0044] This embodiment takes a molten salt fuel multi-stack system with thermal power of 2.0GW+1.0GW as an example.

[0045] Such as figure 1 The tandem molten salt fuel multi-reactor system shown, the molten salt fuel multi-reactor system includes 1 type I reactor module 1, 1 type II reactor module 2, 2 heat exchange modules 3, 2 pump modules 4 and 1 fuel processing module 5. One type I reactor module 1 and one type II reactor module 2 use the same molten salt fuel and flow in different modules, that is, the molten salt fuel flowing out of type I reactor module 1 directly flows to the next A Category II reactor module 2. Class I reactor modules are primarily used for production capacity. Class II reactor modules are primarily used for breeding.

[0046] Type I reactor module 1 with a thermal power of 2.0GW and a conversion ratio of 0.9. The radius of the active zone of the core is 2.5m, and the height is 5.0m; the proportion of the molten salt volume to the total volume i...

Embodiment 2

[0050] This embodiment takes a molten salt fuel multi-stack system with thermal power of 2.0GW+1.0GW as an example.

[0051] Such as figure 2 The parallel molten salt fuel multi-reactor system shown, the molten salt fuel multi-reactor system includes a type I reactor module 1, a type II reactor module 2, a heat exchange module 3, a pump module 4 and 1 Fuel processing module 5. One type I reactor module 1 and one type II reactor module 2 use the same molten salt fuel and flow in different modules, that is, enter type I reactor module 1 and type II reactor module 2 respectively , pass through the respective reactor modules, flow out and aggregate, and then flow into the heat exchange module 3 . Class I reactor modules are primarily used for production capacity. Class II reactor modules are primarily used for breeding.

[0052] Type I reactor module 1 with a thermal power of 2.0GW and a conversion ratio of 0.9. The radius of the active zone of the core is 2.5m, and the heigh...

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Abstract

The invention discloses a fused-salt fuel multi-reactor system. The fused-salt fuel multi-reactor system comprises a reactor module, a heat exchange module, a pump module and a fuel processing module,wherein the reactor module comprises a type I reactor module and a type II reactor module, which adopt the same kind of fused-salt fuel flowing therein; and the type I reactor module and the type IIreactor module are serially and / or parallelly arranged. The type I reactor module operates in an overmoderated region or near the optimal grid point, is used for realizing productivity and multiplication, and comprises a set of reactivity control system which is used for controlling reactivity variation of the rectors. The type II reactor module operates in an undermoderated region and non-moderated region, is used for multiplication and transmutation, belongs to a subcritical reactor, and comprises a set of neutron source systems for driving the reactors. The fused-salt fuel multi-reactor system disclosed by the invention fully utilizes the fluidity of the liquid fuel, and can realize the functions of productivity, multiplication, transmutation and the like in the same system.

Description

technical field [0001] The invention relates to the field of nuclear energy utilization, in particular to a molten salt fuel multi-stack system. Background technique [0002] As the only liquid fuel reactor among the six fourth-generation reactors, the molten salt reactor has unique advantages in inherent safety, economy, sustainable development of nuclear fuel, and nuclear proliferation prevention. The molten salt reactor uses the liquid fusion of thorium or uranium dissolved in fluoride salts such as lithium fluoride and sodium fluoride as fuel. The thermal agent is fused together, which is significantly different from traditional solid-state stacks. According to different purposes, the molten salt reactor structure can be adjusted accordingly, and can be designed as either a thermal spectrum or a fast spectrum. [0003] In view of the flexibility of molten salt reactor design, in order to obtain better neutron performance and engineering feasibility, several typical mol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21D1/00G21D1/02
CPCG21D1/00G21D1/02Y02E30/00
Inventor 于世和邹杨严睿刘亚芬杨璞
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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