Thin-wall fusion target chamber for Z-pinch driven fusion-fission hybrid power reactor

A hybrid energy and fusion target technology, which is applied in the field of fusion target chambers, can solve problems such as heat ablation resistance and thermodynamic shock requirements, and achieve the effects of improving safety margin, safety, and thermal shock resistance

Active Publication Date: 2014-11-19
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Z-FFR fusion release energy exceeds 1-3GJ per pulse, which is much stronger than the In-Zinerator. Therefore, the small-radius target chamber of the In-Zinerator cannot solve the heat ablation and thermodynamic shock requirements faced by Z-FFR.

Method used

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  • Thin-wall fusion target chamber for Z-pinch driven fusion-fission hybrid power reactor
  • Thin-wall fusion target chamber for Z-pinch driven fusion-fission hybrid power reactor
  • Thin-wall fusion target chamber for Z-pinch driven fusion-fission hybrid power reactor

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Experimental program
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Effect test

Embodiment 1

[0055] refer to Figures 1 to 6 As shown, a thin-walled fusion target chamber for a Z-pinch fusion-fission hybrid energy reactor includes a target chamber surrounded by the first wall 6 facing the plasma, and the inner wall surface of the first wall 6 facing the plasma is provided with a heat-resistant The ablation protection layer 5, the target chamber is a spherical shell structure, the upper end is provided with a refueling passage opening 7, and the lower end is provided with a waste removal passage opening 8; The center of the body structure and the wastes are moved out of some faces at three points in the center of the channel opening 8 to be divided to form some structural units 9 (the divided planes are Figure 6 As shown in the longitudinal sectional view), the spherical shell structure of the target chamber is formed by the splicing of the several structural units 9, and the cross section of the structural units 9 is arc-shaped, and protrudes toward the inside of the...

Embodiment 2

[0057] This embodiment is basically the same as Embodiment 1, the difference being that the radius of the target chamber is 8m, and the first wall facing the plasma is Ti with a thickness of 1cm. 3 Al alloy, the heat-resistant ablation protective layer is 0.1mm W, the target chamber is composed of 36 structural units evenly spliced, the cross-section of the structural units is arc-shaped, the radius of curvature is 0.7m, and the interior of the target chamber is filled with 1000Pa Ar gas. Under the condition of 1.5GJ fusion energy release, the radiation energy density on the inner surface of the first wall is calculated to be 0.05J / cm by using the calculation program of the radiation hydrodynamic model 2 , less than the ablation limit of W coating, the impact strength received by the first wall at the same time is 0.24MPa. Using ANSYS14.0 finite element analysis software to calculate the internal impact pressure of 1MPa, the peak value of the internal stress intensity of the f...

Embodiment 3

[0059] This embodiment is basically the same as Embodiment 1, the difference being that the radius of the target chamber is 7m, the first wall facing the plasma is a TiAl alloy with a thickness of 1.5cm, and the heat-resistant ablation protection layer is a W-10%Re alloy of 0.15mm. The target chamber is composed of 30 structural units evenly spliced. The cross-section of the structural units is arc-shaped with a radius of curvature of 0.7m. The interior of the target chamber is filled with 2000Pa of Ar gas. Under the condition of 1.5GJ fusion energy release, the radiation energy density on the inner surface of the first wall is calculated to be 0.06J / cm by using the calculation program of the radiation hydrodynamic model 2 , less than the ablation limit of W coating, the impact strength received by the first wall at the same time is 0.3MPa. Using ANSYS14.0 finite element analysis software, it is calculated that under the condition of 1MPa internal impact pressure, the peak val...

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Abstract

The invention discloses a thin-wall fusion target chamber for a Z-pinch driven fusion-fission hybrid power reactor and belongs to the field of a nuclear reactor device. The thin-wall fusion target chamber comprises a target chamber enclosed by a plasma facing first wall. The inner wall surface of the plasma facing first wall is provided with a thermal ablation protective layer; the target chamber is in a ball-shaped housing structure; the upper end of the target chamber is provided with a refueling (target) channel opening, and the lower end is provided with a waste-removing channel opening; the ball-shaped housing structure carries out segmentation on a plurality of faces passing the three points of the center of the refuelingchannel opening, the center of the ball-shaped housing structure and the center of the waste-removing channel opening to form a plurality of structure units; the ball-shaped housing structure of the target chamber is formed by splicing the plurality of structure units; and the cross section of each structure unit is in arc shape which protrudes to the inner portion of the target chamber. The target chamber designed in the invention can deal with the thermodynamic impact and mechanical impact produced during the fusion reaction, and can meet the Z-FFR neutron physics performance requirements.

Description

technical field [0001] The invention belongs to the field of nuclear reactor devices, in particular to a fusion target chamber for a Z-pinch fusion fission hybrid energy reactor. Background technique [0002] Z-Pinch-Driven Fusion-Fission Hybrid Power Reactor (Z-FFR) uses Z-pinch to drive a large number of neutrons generated by inertial confinement fusion (ICF) to drive subcriticality The release of energy by fission reactor is a new energy that can effectively deal with future energy crisis and environmental and climate issues. Z-FFR requires a fusion target chamber (Fusion Chamber) to provide the necessary environment for fusion generation, contain fusion products and provide fusion safety protection functions. The Z-pinch fusion release energy of the energy application scale is about 1~3GJ per pulse (1GJ=10 9 J), where 80% of the energy is carried by fusion high-energy neutrons and used to drive subcritical fission stacking energy. The remaining 20% ​​of the energy is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21B1/11G21B1/13G21B1/17
CPCY02E30/10
Inventor 祁建敏王真周林梁川褚衍运黄洪文李正宏彭述明郭海兵曾和荣张建华许泽平
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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