Device and method for generating barometric pressure uniform discharge

An atmospheric pressure, uniform technology, applied in electrical components, plasma and other directions, can solve problems such as high maintenance costs, unfavorable large-scale assembly line operations, restricting the research and application of plasma technology, and achieves low gas consumption, simple structure, and low price. low cost effect

Inactive Publication Date: 2013-12-11
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because low-temperature plasma is generally generated under low pressure, so vacuum equipment and consequent high maintenance costs are required, and the existence of vacuum equipment is not conducive to large-scale assembly line operations
These limit the research and application of plasma technology

Method used

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  • Device and method for generating barometric pressure uniform discharge
  • Device and method for generating barometric pressure uniform discharge
  • Device and method for generating barometric pressure uniform discharge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: A device for generating uniform discharge at atmospheric pressure with a single set of discharge electrodes.

[0035] Such as figure 1 As shown, the present embodiment is a device for generating uniform discharge at atmospheric pressure composed of a single set of discharge electrodes. The device includes a discharge mechanism, a gas supply mechanism and a high-voltage power supply; Inert gas, the high voltage power supply 2 is used to provide the required discharge voltage for the discharge mechanism, and the discharge mechanism can generate uniform discharge at atmospheric pressure in the air environment.

[0036] The discharge mechanism includes two discharge electrodes and a glass tube 8, and the two discharge electrodes are hollow needle electrodes 10 and flat plate electrodes 1 respectively. The front end of the glass tube 8 is an air outlet, and the rear end of the glass tube 8 is an air inlet. The rear end of the hollow needle electrode 10 is plu...

Embodiment 2

[0046] Embodiment 2: A device for generating uniform discharge at atmospheric pressure with multiple sets of discharge electrodes.

[0047] This embodiment is a device that includes multiple sets of discharge electrodes to generate uniform discharge at atmospheric pressure, that is, at least two hollow needle electrodes 10 and flat plate electrodes 1 with the same number as the hollow needle electrodes 10 are included in the discharge mechanism, and all hollow needle electrodes After the electrodes 10 are connected in parallel, they are then electrically connected to the high-voltage power supply 2; after all the plate electrodes 1 are connected in parallel, they are then connected to the ground wire. Each hollow needle electrode 10 is plugged on the gas outlet at the front end of a glass tube 8 , and the gas bottle or gas pump 4 in the gas supply mechanism provides nitrogen and / or inert gas for each glass tube 8 . All the glass tubes 8 can be connected to the same gas cylinde...

Embodiment 3

[0048] Embodiment 3: A method for generating uniform discharge at atmospheric pressure under positive DC high voltage.

[0049] first press figure 1 Connect the parts as shown. The glass tube 8 used in this embodiment has a length of 5 cm and a radius of 1 cm; the inner and outer radii of the hollow needle electrode 10 inserted in the rubber stopper 9 are 0.9 cm and 1.2 cm respectively, and the hollow needle electrode 10 is exposed 1 cm outside the rubber stopper 9. The plate electrode 1 is a copper pillar, and the radius of the copper pillar is 5 cm. The high-voltage power supply 2 adopts a positive polarity DC high-voltage power supply, the voltage is 0-15kV, the current is 0-40mA, and the ballast resistance 3 in the circuit is 700kΩ. The gas supply mechanism adopts a gas cylinder to supply gas, and the gas supplied is argon.

[0050] Open the gas valve 5 and adjust the argon gas flow to 30mL / min; then turn on the switch of the high-voltage power supply 2 and adjust the v...

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Abstract

The invention provides a device and method for generating barometric pressure uniform discharge. The device for generating barometric pressure uniform discharge comprises a discharge mechanism, an air supply mechanism and a high-voltage power source, the discharge mechanism comprises a hollow needle electrode, a plate electrode and a glass tube, the hollow needle electrode is connected with the air supply mechanism through the glass tube, the hollow needle electrode is electrically connected with the high-voltage power source, and the plate electrode is connected with a ground wire. By means of the device for generating barometric pressure uniform discharge, barometric pressure uniform discharge can be generated in the air environment, therefore, low-temperature plasma generated by the barometric pressure uniform discharge does not depend on a vacuum device, production cost is reduced, and large-scale industrial application is achieved easily; moreover, nitrogen and /or inert gas enters the discharge space along the hollow needle electrode, gas consumption is low, and barometric pressure uniform discharge generated by the device is more economical compared with generating barometric pressure uniform discharge generated by a spray gun. The device for generating barometric pressure uniform discharge is simple in structure, convenient to operate, low in cost, suitable for batch production, and beneficial to popularization and application.

Description

technical field [0001] The invention relates to a low-temperature gas discharge method, in particular to a device and method for generating uniform discharge at atmospheric pressure. Background technique [0002] The low-temperature plasma generated by gas discharge has a very wide range of applications. For example, in the industrial field, ultraviolet light sources and large-area flat-panel displays can be produced. It can also be used for microchemical analysis, biomedicine, material surface modification and processing, and environmental pollutants. In the military, it can be used for aircraft drag reduction, aircraft stealth, etc. Therefore, low-temperature plasma technology is an important technology related to people's livelihood and medical care, national energy, environment, and national defense security. Although low-temperature plasma has such a wide range of applications, it also has obvious limitations. This is because low-temperature plasma is generally genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/24
Inventor 李雪辰狄聪
Owner HEBEI UNIVERSITY
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