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A Petal Glow Discharge Jet Plasma Generation Structure

A jet plasma and glow discharge technology, applied in the direction of plasma, electrical components, etc., can solve the problems of unsafe discharge, unevenness and difficulty of electrodes, achieve wide application and promotion, reduce initial discharge voltage, space electric field, etc. Evenly distributed effect

Inactive Publication Date: 2019-01-04
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] In view of the above problems, the present invention proposes a petal-type generation structure of jet plasma that generates low-temperature jet plasma under atmospheric pressure, especially a jet plasma of glow discharge, aiming to solve the problem that the existing technology is difficult to produce under atmospheric pressure. The world-class technical problem of using non-inert gas to generate large-aperture and large-area glow discharge jet plasma
[0019] In addition, all discharge electrodes of the present invention are located inside a good insulating medium, and the jet plasma generated belongs to the category of glow discharge, which can effectively solve the problems of unsafe electrodes and uneven discharge existing in existing plasma jet devices

Method used

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  • A Petal Glow Discharge Jet Plasma Generation Structure
  • A Petal Glow Discharge Jet Plasma Generation Structure
  • A Petal Glow Discharge Jet Plasma Generation Structure

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Embodiment 1

[0044] image 3 It is a structural schematic diagram of Embodiment 1 of the present invention; Figure 4 It is a structural schematic diagram of Embodiment 1 of the present invention; Figure 5 It is a cross-sectional view of Embodiment 1 of the present invention; Figure 5 The air pipe that is connected with the external working gas pipe is omitted in the figure, and the cross-sectional view of two through holes is taken, as shown in image 3 , Figure 4 , Figure 5 As shown, it includes a dielectric container 101, the dielectric container 101 is cylindrical, the dielectric container 101 is provided with a first ground electrode 102 and a second ground electrode 103 at intervals, and the annular array between the first ground electrode 102 and the second ground electrode 103 is uniform. There are more than two through holes 104; the first ground electrode 102 and the second ground electrode 103 are provided with more than two high-voltage electrodes 105, and the high-volt...

Embodiment 2

[0048] Such as Figure 5 As shown, a petal-type glow discharge jet plasma generation structure of the present invention includes a dielectric container 101, the dielectric container 101 is cylindrical, and the dielectric container 101 is provided with a first ground electrode 102 and a second ground electrode 103 at intervals, The annular array between the first ground electrode 102 and the second ground electrode 103 is uniformly provided with more than two through holes 104; the first ground electrode 102 and the second ground electrode 103 are provided with more than two high voltage electrodes 105, the high voltage electrodes 105 passes through all the through holes 104 and crosses the section of the through holes 104; the first ground electrode 102 and the second ground electrode 103 are connected to the working power supply through the ground connection terminal; the high voltage electrode 105 is connected to the working power supply through the high voltage connection te...

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Abstract

The invention discloses a petal type glow discharge jet plasma generation structure comprising a medium container which is cylindrical. A first grounding electrode and a second grounding electrode are arranged in the medium container in a spacing way. More than two through holes are evenly distributed between the first grounding electrode and the second grounding electrode in a ring array. The first grounding electrode and the second grounding electrode are provided with more than two high voltage electrodes which penetrate through all the through holes and arranged to be intersected with the cross section of the through holes. The first grounding electrode and the second grounding electrode are connected with a working power supply through grounding connecting terminals. The high voltage electrodes are connected with the working power supply through high voltage connecting terminals. Working gas is piped in through the through holes and generates glow discharge under the effect of a strong electric field in the through holes. The plasmas generated by the working gas are jetted at the outlet of the through holes under the combined effect of the gas flow and the electric field so as to form the glow discharge jet plasmas.

Description

technical field [0001] The invention belongs to the technical field of gas discharge plasma generation, and more specifically relates to a low-temperature jet plasma generation under atmospheric pressure, especially a petal-shaped glow discharge jet plasma generation structure. Background technique [0002] Compared with the traditional gas discharge plasma, the biggest advantage of the atmospheric pressure low-temperature jet plasma is that the plasma is ejected out of the discharge area, and the operator does not need to touch the high-voltage electrode, which greatly improves the safety of use. In addition, the generation device of atmospheric pressure low-temperature jet plasma gets rid of the expensive vacuum system, and the Joule heating of this type of jet plasma is low, and almost all the electric energy is used for the excitation of particle activity in the plasma. Under certain conditions (such as The high-voltage electrode is connected with the external sinusoidal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/26
CPCH05H1/26
Inventor 刘文正马传龙李治一赵潞翔
Owner BEIJING JIAOTONG UNIV