Method and apparatus for forming a non-isothermal plasma jet

Abstract

The invention relates to a method for generating a non-isothermal plasma axisymmetric jet by means of an electrical discharge in a gas flow at a single-phase or three-phase direct or alternating current high voltage, wherein said discharge is triggered by a plasma discharge and induced by an electromagnetic force and is pushed by the pulling force exerted by the gas flow and is confined to the end of the electrode, characterized in that the gas flow pushing the plasma of the discharge is stable at all points of the resulting plasma jet, the invention also relates to a device using the method , particularly gas push distributors include components of stratified flow or rapidly expanding systems in honeycomb systems where a magnetic field system forms plasma lines and conduits for directing the pushing and rotating gas components of the push gas flow.

Description

technical field [0001] The present invention relates to a method of controlling the generation of a non-isothermal plasma jet by a pressure close to atmospheric pressure and a device for implementing the method. Background technique [0002] The generation of plasma jets is related to the technology of material transformation, especially to plasma chemistry, and more particularly to the destruction of products, waste materials. [0003] In practice, the most known and used plasma generators, especially in industry and especially for the destruction of domestic, medical, industrial and other waste materials, are isothermal plasma generators using direct current, alternating current and high frequency, microwaves. [0004] "Isothermal" means that the temperature Ta of the different components of the plasma, especially the heavier particles (molecules, atoms, radicals and ions) and the temperature Te of the electrons are practically equal. According to the definition, no matte...

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Problems solved by technology

[0028] The mentioned methods and generators have the following disadvantages, which make their application difficult in practice or significantly reduce their effectiveness:

[0029] 1. The generated plasma jet is spatially inhomogeneous;

[0030] 2. The generated plasma is unstable;

[0031] 3. Cannot control the method and its parameters;

[0032] 4. The finite (reduced) size of the plasma region;

[0033] 5. The plasma generation area is limited by electrodes (the presence of electrodes in the plasma area hinders the generation area)

However, prolonging the plasma jet is not possible according to the prior art, since in the prior art this occurs considering that the increase in power loss is practically proportional to the square of the jet size, close to the square of the spherical shape The input power and energy efficiency of the converter are improved very little

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