Beryllium-free molten salt reactor core using beryllium oxide for moderating
The technology of beryllium oxide and molten salt reactor is applied in the core design of molten salt reactor and the field of molten salt reactor core, which can solve the difficulty of increasing radioactive waste treatment, unsatisfactory radiation resistance performance, low graphite hardness and strength, etc. problems, to achieve the effects of high fuel salt solubility, improved structural mechanics and radiation resistance, and high fuel breeding ratio
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[0037] Example 1
[0038] Such as figure 1 Shown is a molten salt reactor core with beryllium-free molten salt beryllium oxide moderation. The molten salt reactor core with beryllium-free molten salt beryllium oxide moderation includes a fuel grid 1 and a reflector grid 2. The reflective layer grid 2 is arranged outside the fuel grid 1 and is arranged around the fuel grid 1. The fuel grid 1 uses beryllium oxide as the moderator.
[0039] Such as figure 2 As shown, preferably, the fuel grid 1 includes a plurality of first claddings 13, and the first claddings 13 are cylinders. The plurality of first claddings 13 are arranged in sequence along the radial direction of the first cladding. Each first cladding 13 is provided with a second cladding 14. A gap is left between the first cladding 13 and the second cladding 14. The space between the first cladding 13 and the second cladding 14 is filled with a moderator 11. A fuel flow passage 12 is provided in the second cladding 14. ...
Example Embodiment
[0058] Example 2
[0059] Such as Figure 7-9 As shown, the difference from Embodiment 1 is that the fuel grid 1 of the core of this embodiment includes a plurality of third cladding shells 15. The third cladding 15 is a cylinder. The plurality of third claddings 15 are arranged in sequence along the radial direction of the third cladding and spaced apart. The third cladding 15 is filled with a moderator 11. The third cladding 15 is made of silicon carbide or carbon / carbon composite material. The space between each third cladding 15 is a fuel flow channel 12. The third members 15 are arranged in an array or a regular hexagon, and the six corners and the center of the regular hexagon are distributed with third cladding.
[0060] Each fuel flow channel 12 of the core 01 of this embodiment is located outside each third cladding 15 and communicates with each other. The fuel channels 12 communicate with each other, thereby allowing the molten salt to be mixed with each other, whic...
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