CN104619106A - Device for implementing uniform glow discharge in air under atmosphere pressure - Google Patents
Device for implementing uniform glow discharge in air under atmosphere pressure Download PDFInfo
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- CN104619106A CN104619106A CN201510021685.2A CN201510021685A CN104619106A CN 104619106 A CN104619106 A CN 104619106A CN 201510021685 A CN201510021685 A CN 201510021685A CN 104619106 A CN104619106 A CN 104619106A
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Abstract
The invention discloses a device for implementing uniform glow discharge in air under atmosphere pressure. The device comprises an AC power supply, an insulating medium plate, an upper discharging electrode and a lower discharging electrode; low-radioactivity materials are attached onto the discharging surface of the upper discharging electrode by the physical or chemical method; the insulating medium plate is positioned between the upper discharging electrode and the lower discharging electrode; the lower surface of the insulting medium plate is clung to the lower discharging electrode; the AC power supply supplies power to two ends of the upper discharging electrode and the lower discharging electrode. With the adoption of the device, the uniform glow discharge can be implemented in air under atmosphere pressure, and moreover, the discharging performance is stable; the device has a wide industrial application prospect in the field of material surface processing.
Description
Technical field
The present invention relates to gas discharge technical field, specifically a kind of device realizing uniform glow discharge in atmosphere air.
Background technology
The power density of low temperature plasma that uniform glow discharge produces is moderate, be evenly distributed, and is the desirable selection of field of material surface treatment.Current uniform glow discharge also depends on vacuum plant and special background gas, have impact on the pipelining in industrial processes widely, therefore realizes uniform glow discharge in atmosphere air and has wide prospects for commercial application.Do not take adequate measures to increase the initiating electron concentration needed for discharging if Chinese patent CN200510011372.5 introduces, just can not cause electric discharge under low electric field strength, realize uniform glow discharge in atmosphere air.
summary of the inventionthe object of this invention is to provide a kind of device realizing uniform glow discharge in atmosphere air, uneven, local overheating, discharge instability problem of discharging is there is to solve in prior art dielectric barrier discharge technology, and the circumscribed problem of material surface process.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of device realizing uniform glow discharge in atmosphere air, it is characterized in that: include the upper sparking electrode be oppositely arranged, lower sparking electrode, upper sparking electrode is discharging surface towards the lower surface of lower sparking electrode, and the discharging surface of upper sparking electrode is adsorbed with low-level radioactive substance, on, insulation medium board is provided with between lower sparking electrode, insulation medium board is close to lower electric discharge electrode top, and have air gap between the discharging surface of insulation medium board and upper sparking electrode, also include AC power, AC power is respectively with upper, lower sparking electrode electrical connection also interleaved power.
Described a kind of device realizing uniform glow discharge in atmosphere air, it is characterized in that: upper sparking electrode upper surface, lower sparking electrode lower surface are vertically connected with electrode terminal respectively, and AC power is electrically connected with the electrode terminal of upper and lower sparking electrode respectively by wire.
Described a kind of device realizing uniform glow discharge in atmosphere air, is characterized in that: the low-level radioactive substance being adsorbed on sparking electrode discharging surface is carbon-14.
Described a kind of device realizing uniform glow discharge in atmosphere air, is characterized in that: described upper sparking electrode and lower sparking electrode all adopt stainless steel material to make, and diameter is 100mm, and thickness is 6mm.
Described a kind of device realizing uniform glow discharge in atmosphere air, is characterized in that: described insulation medium board by glass or quartz or pottery or corundum material be made, dielectric board diameter is 200mm, thickness is 0.5 ~ 2mm.
Described a kind of device realizing uniform glow discharge in atmosphere air, is characterized in that: the Air gap thickness between the discharging surface of described upper sparking electrode and insulation medium board is 2 ~ 7mm.
Described a kind of device realizing uniform glow discharge in atmosphere air, is characterized in that: described ac power frequency is 5 ~ 50kHz, and crest voltage is 5 ~ 80KV, and operating power is 2 ~ 100W, alternately puts on sparking electrode and lower sparking electrode.
The present invention has the following advantages:
1, low-level radioactive substance is adsorbed on the discharging surface of sparking electrode, meeting under harmless condition, β ray is radiated continuously in air gap, for dielectric barrier discharge provides initiating electron, reduce the electric field strength required for atmospheric pressure discharge, the uniform glow discharge in atmosphere air can be realized.
2, low-level radioactive substance is adsorbed on the discharging surface of sparking electrode, significantly reduce the electric field strength required for atmospheric pressure discharge, reduce the heat produced in process gas discharge widely, be conducive to the stable discharging realized in atmosphere air.
In sum, the present invention can realize the uniform glow discharge in atmosphere air, and discharge performance is stablized, and has wide prospects for commercial application in field of material surface treatment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of device realizing uniform glow discharge in atmosphere air, include the upper sparking electrode 1 be oppositely arranged, lower sparking electrode 4, upper sparking electrode 1 is discharging surface towards the lower surface of lower sparking electrode 4, and the discharging surface of upper sparking electrode 1 is adsorbed with low-level radioactive substance 2, on, lower sparking electrode 1, insulation medium board 3 is provided with between 4, insulation medium board 3 is close to lower sparking electrode 4 upper surface, and have air gap between the discharging surface of insulation medium board 3 and upper sparking electrode 1, also include AC power 5, AC power 5 is respectively with upper, lower sparking electrode 1, 4 electrical connections also interleaved power.
Upper sparking electrode 1 upper surface, lower sparking electrode 4 lower surface are vertically connected with electrode terminal respectively, and AC power 5 is electrically connected with the electrode terminal of upper and lower sparking electrode 1,4 respectively by wire.
The low-level radioactive substance 2 being adsorbed on sparking electrode 1 discharging surface is carbon-14.
Upper sparking electrode 1 and lower sparking electrode 4 all adopt stainless steel material to make, and diameter is 100mm, and thickness is 6mm.
Insulation medium board 3 by glass or quartz or pottery or corundum material be made, dielectric board diameter is 200mm, thickness is 0.5 ~ 2mm.
Air gap thickness between the discharging surface of upper sparking electrode 1 and insulation medium board 3 is 2 ~ 7mm.
AC power 5 frequency is 5 ~ 50kHz, and crest voltage is 5 ~ 80KV, and operating power is 2 ~ 100W, alternately puts on sparking electrode and lower sparking electrode.
The present invention includes AC power, insulation medium board, upper sparking electrode and lower sparking electrode, by physics or chemical method the discharging surface there is low-level radioactive substance being adsorbed onto upper sparking electrode.Insulation medium board is placed between sparking electrode and lower sparking electrode and the lower surface of insulation medium board is close to the upper surface of lower sparking electrode; AC power is that upper sparking electrode and lower sparking electrode two ends power.
Be adsorbed on the radioactive substance of sparking electrode discharging surface, β ray can be radiated continuously in air gap, increase the concentration of initiating electron in air, the electric field strength of reduction required for gas discharge, realize the even of electric discharge.Because the activity of radioactive material has harm to human body on the one hand, be directly connected to the concentration of initiating electron in gas discharge air gap on the other hand, therefore choose the carbon-14 that the half-life is 5710.
Upper sparking electrode and lower sparking electrode all adopt stainless steel material, and diameter is 100mm, and thickness is 6mm.Stainless steel material not only has good conduction, heat dispersion, also has adsorbability, is convenient to the absorption of carbon-14.The diameter of institute's sparking electrode and lower sparking electrode and thickness are determined according to the radioactive activity of carbon-14, machining accuracy.
Air gap between upper sparking electrode and insulation medium board is 2 ~ 7mm.Air gap between upper sparking electrode and insulation medium board is determined according to the radioactive activity of the power of described power supply, the kind of ionized gas and carbon-14.
Insulation medium board is close to the upper surface of lower sparking electrode.Avoid there is air gap between insulation medium board and lower sparking electrode, the overall performance of electric discharge is had an impact.
Power supply is high-voltage ac power, and frequency is 5 ~ 50kHz, and crest voltage is 5 ~ 80KV, and operating power is 2 ~ 50W, alternately puts on sparking electrode and lower sparking electrode two ends.
Claims (7)
1. one kind realizes the device of uniform glow discharge in atmosphere air, it is characterized in that: include the upper sparking electrode be oppositely arranged, lower sparking electrode, upper sparking electrode is discharging surface towards the lower surface of lower sparking electrode, and the discharging surface of upper sparking electrode is adsorbed with low-level radioactive substance, on, insulation medium board is provided with between lower sparking electrode, insulation medium board is close to lower electric discharge electrode top, and have air gap between the discharging surface of insulation medium board and upper sparking electrode, also include AC power, AC power is respectively with upper, lower sparking electrode electrical connection also interleaved power.
2. a kind of device realizing uniform glow discharge in atmosphere air according to claim 1, it is characterized in that: upper sparking electrode upper surface, lower sparking electrode lower surface are vertically connected with electrode terminal respectively, and AC power is electrically connected with the electrode terminal of upper and lower sparking electrode respectively by wire.
3. a kind of device realizing uniform glow discharge in atmosphere air according to claim 1, is characterized in that: the low-level radioactive substance being adsorbed on sparking electrode discharging surface is carbon-14.
4. a kind of device realizing uniform glow discharge in atmosphere air according to claim 1, is characterized in that: described upper sparking electrode and lower sparking electrode all adopt stainless steel material to make, and diameter is 100mm, and thickness is 6mm.
5. a kind of device realizing uniform glow discharge in atmosphere air according to claim 1, it is characterized in that: described insulation medium board by glass or quartz or pottery or corundum material be made, dielectric board diameter is 200mm, thickness is 0.5 ~ 2mm.
6. a kind of device realizing uniform glow discharge in atmosphere air according to claim 1, is characterized in that: the Air gap thickness between the discharging surface of described upper sparking electrode and insulation medium board is 2 ~ 7mm.
7. a kind of device realizing uniform glow discharge in atmosphere air according to claim 1, it is characterized in that: described ac power frequency is 5 ~ 50kHz, crest voltage is 5 ~ 80KV, and operating power is 2 ~ 100W, alternately puts on sparking electrode and lower sparking electrode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510021685.2A CN104619106B (en) | 2015-01-15 | 2015-01-15 | A kind of device for realizing uniform glow discharge in atmosphere air |
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| CN201510021685.2A CN104619106B (en) | 2015-01-15 | 2015-01-15 | A kind of device for realizing uniform glow discharge in atmosphere air |
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| CN104619106B CN104619106B (en) | 2018-04-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768823A (en) * | 2017-02-24 | 2017-05-31 | 中国航天空气动力技术研究院 | A kind of hypersonic flow field wave system structure observation procedure |
| CN114126179A (en) * | 2021-11-09 | 2022-03-01 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Device and method for generating large-area uniform glow discharge plasma |
| CN114388150A (en) * | 2021-12-28 | 2022-04-22 | 核工业西南物理研究院 | Detachable plate type glow discharge electrode and electrode assembly |
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| EP0292974A2 (en) * | 1987-05-29 | 1988-11-30 | Martin Marietta Energy Systems, Inc. | Atmospheric sampling glow discharge ionization source |
| WO1999037581A2 (en) * | 1998-01-22 | 1999-07-29 | Moeny William M | High efficiency glow discharge gaseous processing system for hydrogen peroxide production and other chemical processing of gases |
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| CN1777347A (en) * | 2005-11-24 | 2006-05-24 | 南京航空航天大学 | Corona coupling medium discharge-blocking device for generating low-temperature plasma |
| WO2008147184A2 (en) * | 2007-05-25 | 2008-12-04 | Fujifilm Manufacturing Europe B.V. | Atmospheric pressure glow discharge plasma method and system using heated substrate |
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2015
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Patent Citations (5)
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| EP0292974A2 (en) * | 1987-05-29 | 1988-11-30 | Martin Marietta Energy Systems, Inc. | Atmospheric sampling glow discharge ionization source |
| WO1999037581A2 (en) * | 1998-01-22 | 1999-07-29 | Moeny William M | High efficiency glow discharge gaseous processing system for hydrogen peroxide production and other chemical processing of gases |
| CN1491527A (en) * | 2001-02-12 | 2004-04-21 | Se�������幫˾ | Apparatus for generating low temperature plasma at atmospheric pressure |
| CN1777347A (en) * | 2005-11-24 | 2006-05-24 | 南京航空航天大学 | Corona coupling medium discharge-blocking device for generating low-temperature plasma |
| WO2008147184A2 (en) * | 2007-05-25 | 2008-12-04 | Fujifilm Manufacturing Europe B.V. | Atmospheric pressure glow discharge plasma method and system using heated substrate |
Non-Patent Citations (4)
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| RT WATERS AND WB STARK: "Characteristics of the stabilized glow discharge in air", <J. PHYS. D: APPL. PHYS.> * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768823A (en) * | 2017-02-24 | 2017-05-31 | 中国航天空气动力技术研究院 | A kind of hypersonic flow field wave system structure observation procedure |
| CN106768823B (en) * | 2017-02-24 | 2018-11-23 | 中国航天空气动力技术研究院 | A kind of hypersonic flow field wave system structure observation method |
| CN114126179A (en) * | 2021-11-09 | 2022-03-01 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Device and method for generating large-area uniform glow discharge plasma |
| CN114388150A (en) * | 2021-12-28 | 2022-04-22 | 核工业西南物理研究院 | Detachable plate type glow discharge electrode and electrode assembly |
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| CN104619106B (en) | 2018-04-20 |
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