Fast ignition target fuel layering device based on fluid magnetic suspension and fast ignition target fuel layering method based on fluid magnetic suspension

Abstract

The invention discloses a fast ignition target fuel layering device based on fluid magnetic suspension and a fast ignition target fuel layering method based on the fluid magnetic suspension. The fast ignition target fuel layering device based on the fluid magnetic suspension comprises a turnplate mechanism which is composed of a drive shaft, a turnplate and a target making chamber. The turnplate is fixed on the drive shaft, a groove is formed in the plate face of the turnplate along the radial direction, the target making chamber is installed, a guide rail is fixed in the target making chamber, a heat exchanger and a target seat are placed on the two sides of a slide block, an anti-radiation shield is fixed on the target seat, one end of a clamping arm is fixed to the slide block, the other end of the clamping arm is connected with a supporting rod which is bonded to a gold cone shell of a target pellet, a hydrogen filing tube is communicated with a capillary tube and a liquid hydrogen container, and the hydrogen filling tube is also communicated with the anti-radiation shield and a gas hydrogen container. When fuel is layered, the slide block is located at the tail end of the guide rail, and the layering method includes that the fluid magnetic suspension technology is adopted to basically counteract the gravity force of liquid fuel, the strength of foamed material is enabled not to be a restraining factor for fuel layering, and therefore the requirements for fast ignition target fuel layering of large-diameter thick material layers are met. The fast ignition target fuel layering device based on the fluid magnetic suspension and the fast ignition target fuel layering method based on the fluid magnetic suspension have the advantages of being simple in structure, reliable in operation, and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of inertial confinement nuclear fusion, in particular to a fast-ignition target fuel stratification device and method based on fluid magnetic levitation. Background technique [0002] Fluid magnetic levitation technology means that by applying an external magnetic field, the magnetic field force and gravity are basically offset on each particle of the target fluid, and then the weak molecular cohesion in the fluid is used to make the fluid microgroup achieve a suspension effect. The magnetic acceleration generated by the artificial magnetic field generally changes with the spatial position, while the gravitational acceleration can be regarded as uniform in space, so the magnetic field force cannot completely offset the gravity at each particle point of the object, and it needs to be realized through the joint action of the magnetic field force, gravity, and molecular cohesion. Maglev. The molecular cohesion...

AI Technical Summary

Problems solved by technology

Among the three target types, only the structure of the fast-ignition target is non-spherically symmetrical, so traditional layering techniques such as β-layering and infrared-assisted layering are difficult to work on it

The radius of each micropore in the foam material should be as large as possible to avoid interference with fuel ignition, which limits the adsorption capacity and strength of the foam material

Therefore, when performing fuel stratification on a fast-ignition target with a large diameter and thick fuel layer, the weight of the liquid fuel itself will exceed the supporting capacity of the foam material, resulting in deformation of the foam material support and affecting the uniformity of the fuel layer

At present, researchers have not yet produced an ideal low-density, high-strength porous nano-foam material. Therefore, compared with other target types, the size of the fast-ignition target is relatively small, the amount of fuel filling is relatively small, and the scope of use is limited.

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