High-accuracy quick assembling and disassembling structure for tokamak divertor module

Abstract

The invention discloses a high-accuracy quick assembling and disassembling structure for a tokamak divertor module. The high-accuracy quick assembling and disassembling structure comprises two high-accuracy installed guide rails, the high-accuracy processed divertor module, a movable wedge block, an auxiliary support, two connecting bolts and two stopping blocks. The divertor module can be quickly installed in place through small-distance movement in two directions, and the divertor module and the guide rails are wedged by the wedge blocks to restrain the freedom degree in the axial direction and the freedom degree in the vertical direction. The stopping blocks are used for controlling the freedom degree in the annular direction, and the connecting bolts can further fasten the divertor module.

Description

technical field [0001] The invention relates to the field of large-scale high-precision rapid assembly, specifically a high-precision tokamak divertor with complex structure, large size, high installation accuracy requirements, and each divertor module can be independently installed and replaced. Quick assembly and disassembly structure. Background technique [0002] The tokamak divertor directly faces the plasma in the tokamak device, and is one of the important components in the magnetic confinement nuclear fusion tokamak device. The main function of the divertor is to discharge heat, remove impurities and reaction products; different behaviors of the plasma during the operation of the tokamak device will generate a strong electromagnetic force on the divertor module, and the divertor must be able to withstand the strong electromagnetic force . The energy density of the plasma deposited on the divertor is very high, and the material of the divertor facing the plasma ...

AI Technical Summary

Problems solved by technology

The energy density of the plasma deposited on the divertor is very high, and the material of the divertor facing the plasma will be damaged due to thermal fatigue and other reasons, and the damaged divertor module needs to be replaced in time to ensure the normal operation of the device. The assembly structure of the module makes the divertor module easy to disassemble and install; the heat flow deposited by the plasma on the divertor is the energy brought to the divertor by the ions moving along the magnetic field line and intersecting the surface of the divertor facing the plasma. The shape accuracy of the magnetic field lines of the magnetic field generated by the magnet is an ideal shape. The surface of the divertor facing the plasma requires its shape accuracy to be very high, which is equivalent to the accuracy of the magnetic field lines. Only in this way can the heat from the plasma be uniformly deposited on the divertor. If a module or a part of the same module protrudes, the heat will be concentrated and deposited on this part, causing the part to be ablated rapidly and damaged

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