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Cylindrical plasma generator and application thereof

A plasma and generator technology, applied in the field of plasma, can solve the problems that the gas generation cannot be effectively adjusted, is not conducive to the uniform ignition and combustion of the propellant, and the ablation area of ​​the capillary wall is small, so as to ensure the uniformity of injection and the burning of Large etched wall surface, achieving the effect of secondary control

Active Publication Date: 2019-07-19
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Cylindrical plasma generator and application thereof
  • Cylindrical plasma generator and application thereof
  • Cylindrical plasma generator and application thereof

Examples

Experimental program
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Embodiment

[0043] A cylindrical plasma generator, the positive rod 11 is a rod with external threads, the size is Φ5mm×15mm, the positive disc 8 is a disc of Φ15mm×2mm, the positive rod 11 is connected to the positive disc 8, and the positive rod 11 passes through the through hole on the left side of the generator outer cylinder 2, and is fastened by the positive nut 10.

[0044] The generator outer cylinder 2 is made of polytetrafluoroethylene, the inner diameter is Φ15mm×150mm, and the outer diameter is Φ20mm×150mm, such as figure 2 As shown, there are three symmetrical grooves 12 on the wall of the cylinder. The length of the grooves 12 is 10 mm and the width is 2 mm. The right side of the generator outer cylinder 2 is connected with the negative electrode plug 4 .

[0045] The negative rod 6 is a rod with an external thread, and its size is Φ5mm×15mm. The negative disc 3 is a disc of Φ15mm×2mm. The hole is fastened by the negative nut 5.

[0046] Discharge wire 7 is the copper wir...

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Abstract

The invention discloses a cylindrical plasma generator and an application thereof. The cylindrical plasma generator comprises a generator outer cylinder, wherein a positive pole disc and a negative pole disc are arranged at the two ends of the generator outer cylinder respectively; the positive pole disc is provided with a positive pole rod, wherein the positive pole rod extends out of the generator outer cylinder to form a generator positive pole; a negative pole rod is arranged on the negative pole disc; discharge metal wires are arranged in the generator outer cylinder, and the two ends ofthe discharge metal wires are connected with the positive pole disc and the negative pole disc respectively; and grooves communicated with the inside and outside of the generator outer cylinder are axially and symmetrically formed in the cylinder wall of the generator outer cylinder. According to the generator, the plasma ablation wall surface is large, the pressure in the ablation space is controllable, and the quantity of the generated plasma is large, the generator can be directly used for a plasma generator of gunpowder ignition, and the problems of uniformity, consistency and controllability in the process of igniting the propellant powder by the plasma are solved.

Description

technical field [0001] The invention belongs to the field of plasma technology, in particular to a cylindrical plasma generator and its application, which can be directly used for the ignition of gunpowder. 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 by ablation of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/26F42B3/10F42C19/12
CPCF42B3/10F42C19/12H05H1/26
Inventor 张江波陈立李鹏辉李兴文杨伟鸿樊浩
Owner XI AN JIAOTONG UNIV
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