Continuous molten metal film generating device and method under high-intensity magnetic field

Abstract

The invention relates to the field of energy resources, particularly to a continuous molten metal film generating device and method under a high-intensity magnetic field. The continuous molten metal film generating device includes a plurality of mutually overlaid liquid film generation subunits made of insulating materials and unequal in length, wherein from the top layer to the bottom layer, the conveyed quantity of metal liquid is gradually increased; in the adjacent two liquid film generation subunits, the metal liquid transmitted from the tail end of an output passage of the lower liquid film generation subunit is combined with the metal liquid transmitted from the flowing area of the upper molten metal film, so as to form a continuous molten metal film. According to the continuous molten metal film generating device and method under a high-intensity magnetic field, provided by the embodiment of the invention, metal liquid of all the layers passing by the output passages is joined with the metal liquid of the upper layer, and the flowing area formed by the flowing molten metal film of metal liquid is shorter, so that an integral, stable and continuous molten metal film is formed, and the functions of taking heat and impurities away and the like of the molten metal film in a practical magnetic confinement fusion reactor device are realized.

Description

technical field [0001] The invention relates to the field of energy, in particular to a continuous metal liquid film generation device and method under a strong magnetic field. Background technique [0002] With the gradual depletion of exploitable natural resources such as coal and oil, human beings have less and less natural resources available, and the energy crisis is becoming more and more serious. The growth of the world population has further accelerated the onset of this crisis. The development of nuclear energy has opened up a new way to solve the energy crisis. Nuclear energy includes nuclear fission energy and nuclear fusion energy. Among them, nuclear fusion reaction is rich in raw materials, relatively safe in the reaction process, and less polluting to the environment by the products after the reaction. , The reaction produces a large energy density and other advantages, so it is called the development direction of the next generation of new energy. [0003] ...

AI Technical Summary

Problems solved by technology

[0006] However, according to the knowledge of magnetohydrodynamics, for a magnetic confinement fusion reactor, the strong magnetic field will generate a strong electromagnetic force in the flowing liquid metal, which acts on the fluid to cause the free surface of the liquid metal to generate magnetohydrodynamics (MHD) instability, intuitively manifested as a sharp increase in flow resistance

The increase in flow resistance will inevitably prevent the liquid film from forming continuously at high speed and covering the surface of the divertor, which will seriously restrict the function that the free lithium wall should perform.

[0007] At present, the traditional solution is to increase the flow rate of the liquid film inlet or reduce the flow distance. Among them, increasing the flow rate of the liquid film inlet requires additional metal fluid drive power consumption. For the actual magnetic confinement nuclear fusion reactor, the size of the liquid lithium divertor used is relatively small. Large, to ensure that the entire surface of the liquid lithium divertor has a large flow rate requires a large drive energy consumption; and the flow distance is determined by the size of the liquid divertor in the nuclear fusion reactor, which cannot be directly reduced

Therefore, neither of these two traditional methods can be directly applied to the liquid divertor in the nuclear fusion reactor to realize the generation of continuous metal liquid film

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