A Small Modular Flowing Pebble Bed Fluorine Salt Cooled High Temperature Reactor

Abstract

The invention relates to a small-size modular flow ball bed fluorine salt cooling high-temperature reactor. The reactor comprises a nuclear fuel operating system, a nuclear heat generation system, a nuclear heat transmission system and nuclear heat utilization system; the nuclear fuel operating system is used for storing nuclear fuel; the nuclear heat generation system is used for controlling fission of the nuclear fuel and generating nuclear heat, and the nuclear heat generation system contains a reactor main vessel and a fluorine salt which is placed in the reactor main vessel and used for carrying out heat exchange with the nuclear fuel; heat is transmitted between the first circuit and the second circuit of the nuclear heat transmission system through a first-second circuit heat exchanger, and the second circuit is provided with a high-temperature fused-salt storage tank and a low-temperature fused-salt storage tank which are connected with the first-second circuit heat exchanger through a pipeline and used for storing a heat exchange medium; the nuclear heat utilization system is used for carrying out heat utilization on the nuclear heat; the nuclear fuel operating system is connected with the nuclear heat generating system, so that the nuclear fuel is fed into the nuclear heat generating system and unloaded from the nuclear heat generating system; and the nuclear heat transmission system is respectively connected with the nuclear heat generating system and the nuclear heat utilization system, so that the nuclear heat is transmitted from the nuclear heat generating system to the nuclear heat utilization system. The reactor simultaneously meets economic and security requirements.

Description

technical field [0001] The invention relates to a molten salt reactor, more particularly to a small-scale modular flow pebble bed fluorine salt cooling high temperature reactor. Background technique [0002] Flowing pebble bed fluorine salt cooled high temperature reactor, also known as fluorine salt cooled high temperature pebble bed reactor, was developed on the basis of the fourth generation nuclear energy system molten salt reactor, specifically using graphite matrix spherical fuel elements coated with fuel particles ( Fuel balls) are piled up in the core to form a pebble bed, and the flowing molten salt takes heat out of the core. [0003] Fluoride-salt cooled high-temperature pebble bed reactors usually use the online refueling mode: the fuel balls enter the core from the bottom of the core vessel by buoyancy, after a period of combustion, they rise to the top of the core vessel by buoyancy, and leave the core by the unloading device , which also poses a greater chall...

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Problems solved by technology

[0003] Fluoride-salt cooled high-temperature pebble bed reactors usually use the online refueling mode: the fuel balls enter the core from the bottom of the core vessel by buoyancy, after a period of combustion, they rise to the top of the core vessel by buoyancy, and leave the core by the unloading device , which also poses a greater challenge to the design

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