A fusion reactor tungsten divertor structure based on high temperature molten salt cooling

Abstract

The present invention discloses a fusion reactor tungsten divertor structure design based on high temperature fused salt cooling. The fusion reactor tungsten divertor structure design comprises a tungsten surface pair plasma material and tungsten and lanthanum alloy heat sinks. The tungsten and lanthanum alloy heat sinks comprises a tungsten and lanthanum alloy heat sink 1 and a tungsten and lanthanum alloy heat sink 2. The tungsten and lanthanum alloy heat sink 1 is a half pipe with a C-shaped cross section, and the tungsten and lanthanum alloy heat sink 2 is a half pipe with a round angle and a semi-rectangle-shaped cross section. The tungsten surface pair plasma material is connected to the tungsten and lanthanum alloy heat sink 1, and the tungsten and lanthanum alloy heat sink 1 is connected to the tungsten and lanthanum alloy heat sink 2 to form a whole pipe. through the effective combination of tungsten and lanthanum alloy materials and a high-temperature fused salt cooling agent, the fusion reactor tungsten divertor structure design based on high temperature fused salt cooling is provided to adapt to a fusion reactor high-flux neutron irradiation environment, the heat bearing capacity can reach a 10-20MW / m2 steady-state thermal load, the structural material neutron activation is low, the , nuclear waste processing after component retirement is relatively easy, and the improvement of fusion reactor power generation economical efficiency is facilitated.

Description

technical field [0001] The invention relates to the technical field of divertors of nuclear fusion devices, in particular to a structural design of a fusion reactor tungsten divertor based on high-temperature molten salt cooling. Background technique [0002] As one of the core components of the nuclear fusion device, the divertor is responsible for the function of eliminating the high heat flow and particle flow from the plasma. In future fusion reactors, due to the operating environment of high-flux neutron irradiation and the requirements of power generation economy, the divertor must: (1) withstand 10MW / m 2 The above steady-state heat load has high structural strength; (2) The neutron activation degree of the structural material is low to reduce the difficulty of nuclear waste disposal after component decommissioning; (3) The operating temperature of the coolant is as high as possible to improve the economy of power generation. [0003] At present, the most mature advan...

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Problems solved by technology

However, due to the poor cooling capacity and heat carrying capacity of helium, it is difficult to further improve the heat carrying capacity of this structure. At the same time, the structure design is extremely complex, and helium is an extremely scarce strategic resource. Therefore, it is used as a fusion reactor divertor structure. Poor engineering feasibility

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