Thermionic power generation experiment device with protective sleeve

Abstract

The invention provides a thermionic power generation experiment device with a protective sleeve. The device comprises an emitting electrode assembly for emitting electrons; a receiving electrode assembly which is aligned with the emitting electrode assembly and is used for receiving the electrons emitted by the emitting electrode assembly; and an electrode connecting assembly which is arranged between the emitting electrode assembly and the receiving electrode assembly and forms a space for the electrons to pass. The protective sleeve is arranged at the end part of the receiving electrode assembly and is used for preventing the plasma between the emitting electrode assembly and the receiving electrode assembly from overflowing. According to the thermionic power generation experiment device, the electrons emitted to the outer edge of the receiving end surface of the receiving electrode assembly can be eliminated through the protective sleeve; therefore, only electrons at the central position where the emitting electrode and the receiving electrode are aligned are emitted into the receiving electrode, thereby preventing the overflow of the plasma, facilitating the elimination of theelectrode edge effect of the thermionic power generation experimental device, guaranteeing the consistency of the characteristics of the transmitting surface and the receiving surface, and guaranteeing the strictly set opposite area is provided, and the precision of data processing by adopting the current density.

Description

technical field [0001] The invention relates to the technical field of thermionic power generation, and more particularly, relates to a thermionic power generation experimental device for experimentally researching the characteristics of a thermionic power generation system. Background technique [0002] Thermionic power generation is a technology that directly converts thermal energy into electrical energy by means of thermionic emission. Through the combination with specific heat supply methods, thermionic power generation can be applied in different occasions, especially the thermionic reactor power source combined with nuclear reactor fission energy has unique advantages in the field of space applications, and has been used in the Russian TOPAZ series of space nuclear power plants. The power system has been verified in flight tests. Thermion power generation experimental device is the necessary equipment for the development of thermion power generation technology. [0...

AI Technical Summary

Problems solved by technology

[0005] According to the literature survey of related technologies, the electrode system of the existing thermionic power generation experimental device has the problem of plasma edge effect, that is, the problem of plasma spillover, which is mainly due to the large curvature of the emitter edge, which will produce local Strengthening the electric field promotes Schottky emission, so that the formation area of ​​the plasma exceeds the range of the electrode facing area in the electrode gap, resulting in a larger measured value of the total current density, and, in the subsequent data processing process, converted to current The density value is larger than the actual value, resulting in experimental error

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