Porous plasma generator and closed bomb vessel

Abstract

The invention discloses a porous plasma generator and a closed bomb vessel. The porous plasma generator comprises a porous nozzle. The center of the porous nozzle is provided with an axial circular hole. A discharge metal wire is disposed in the axial circular hole. The two ends of the axial circular hole are connected with a positive plug and a negative plug at both ends of the porous nozzle respectively and the two ends of the discharge metal wire are connected with the positive plug and the negative plug at both ends of the porous nozzle respectively. Orifices are arranged between the axialcircular hole and the porous nozzle at intervals. The porous plasma generator solves the uniformity, the consistency, the controllability during a process that the plasma ignites the propellant.

Description

technical field [0001] The invention belongs to the field of plasma technology, and in particular relates to a porous plasma generator, which can be directly used for the ignition of gunpowder and a closed explosive device. Background technique [0002] Plasma is an ionized gas-like substance composed of atoms deprived of some electrons and positive and negative ions generated after ionization of atomic groups. It is a macroscopically neutral ionized gas whose scale is larger than the Debye length. Its movement is mainly dominated by electromagnetic force and exhibits significant collective behavior. Depending on the application object, the plasma generator is also different. Capillary discharge plasma generators are commonly used in electrothermal chemical guns to generate thermal plasma and ignite the propellant by plasma. The structure of the capillary discharge plasma makes the direction of the plasma more constrained, and more plasma-state substances can be generated b...

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Problems solved by technology

[0003] (1) The plasma is ejected from the bottom, which is not conducive to the uniform ignition and combustion of the propellant;

[0004] (2) The nozzle pressure is difficult to control, and it cannot be adjusted accurately during the ignition process of the propellant;

[0005] (3) The ablation area of ​​the capillary wall is small, and the generation of gas cannot be effectively adjusted

[0006] Therefore, different ignition conditions are required under different propellants and charge conditions. In order to obtain ideal plasma ignition conditions, it cannot be achieved through existing technologies.

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