CN104619106B - A kind of device for realizing uniform glow discharge in atmosphere air - Google Patents
A kind of device for realizing uniform glow discharge in atmosphere air Download PDFInfo
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- CN104619106B CN104619106B CN201510021685.2A CN201510021685A CN104619106B CN 104619106 B CN104619106 B CN 104619106B CN 201510021685 A CN201510021685 A CN 201510021685A CN 104619106 B CN104619106 B CN 104619106B
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- sparking electrode
- glow discharge
- electrode
- insulation medium
- uniform glow
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Abstract
The invention discloses a kind of device for realizing uniform glow discharge in atmosphere air, including AC power, insulation medium board, upper sparking electrode and lower sparking electrode, by the discharging surface for either physically or chemically material with low-activity being adsorbed onto upper sparking electrode；Insulation medium board is placed between sparking electrode and lower sparking electrode, and lower sparking electrode is close in the lower surface of insulation medium board；AC power is powered for upper sparking electrode and lower sparking electrode both ends.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.
Description
Technical field
It is specifically a kind of to realize uniform glow discharge in atmosphere air the present invention relates to gas discharge technical field
Device.
Background technology
Uniform glow discharge produce low temperature plasma power density it is moderate, be evenly distributed, be material surface processing
Field preferably selects.Uniform glow discharge also relies on vacuum plant and special background gas at present, greatly affects
Pipelining in industrial processes, therefore realize that uniform glow discharge should with wide industry in atmosphere air
Use prospect.If Chinese patent CN200510011372.5 introduces the initiating electron do not taken needed for adequate measures increase electric discharge
Concentration, cannot trigger electric discharge under existing fringing field intensity, realize uniform glow discharge in atmosphere air.
The content of the invention the object of the present invention is to provide a kind of device for realizing uniform glow discharge in atmosphere air,
To solve the problems, such as to exist in prior art media barrier discharge technology discharge uneven, hot-spot, discharge instability, and
Material surface handles the problem of limitation.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：Include what is be oppositely arranged
Upper sparking electrode, lower sparking electrode, upper sparking electrode towards the lower surface of lower sparking electrode be discharging surface, and upper sparking electrode
Discharging surface be adsorbed with low-level radioactive substance, insulation medium board is provided between upper and lower sparking electrode, insulation medium board is close to
Lower electric discharge electrode top, and have the air gap between the discharging surface of insulation medium board and upper sparking electrode, further include friendship
Galvanic electricity source, AC power is electrically connected respectively with upper and lower sparking electrode and interleaved power.
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：Upper sparking electrode
Upper surface, lower sparking electrode lower surface are respectively perpendicular and are connected with electrode terminal, and AC power is put with upper and lower respectively by conducting wire
The electrode terminal of electrode is electrically connected.
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：Absorption is put upper
The low-level radioactive substance of electric electrode discharge surface is carbon-14.
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：The upper electric discharge
Electrode and lower sparking electrode are made of stainless steel material, and diameter is 100mm, and thickness is 6mm.
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：The insulation is situated between
Scutum is made by glass or quartz or ceramics or corundum material, and a diameter of 200mm of insulation medium board, thickness are
0.5~2mm.
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：The upper electric discharge
Air gap thickness between the discharging surface and insulation medium board of electrode is 2~7mm.
A kind of device for realizing uniform glow discharge in atmosphere air, it is characterised in that：The alternating current
Source frequency is 5~50kHz, and crest voltage is 5~80KV, and operating power is 2~100W, is alternately applied to sparking electrode with
Sparking electrode.
The present invention has the following advantages：
1st, low-level radioactive substance absorption upper sparking electrode discharging surface, meet it is harmless under conditions of, hold
It is continuous that β rays are constantly radiated into air gap, initiating electron is provided for dielectric barrier discharge, gas under atmospheric pressure is reduced and puts
The required electric field strength of electricity, it is possible to achieve the uniform glow discharge in atmosphere air.
2nd, low-level radioactive substance adsorbs the discharging surface in upper sparking electrode, significantly reduces atmospheric pressure discharge
Required electric field strength, considerably reduces the heat produced in process gas discharge, is advantageously implemented atmosphere air
In stable discharging.
In conclusion the present invention can realize the uniform glow discharge in atmosphere air, and discharge performance is stablized,
Field of material surface treatment has wide prospects for commercial application.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Embodiment
As shown in Figure 1, a kind of device for realizing uniform glow discharge in atmosphere air, include be oppositely arranged it is upper
Sparking electrode 1, lower sparking electrode 4, upper sparking electrode 1 towards the lower surface of lower sparking electrode 4 be discharging surface, and upper electric discharge electricity
The discharging surface of pole 1 is adsorbed with low-level radioactive substance 2, and insulation medium board 3 is provided between upper and lower sparking electrode 1,4, and insulation is situated between
Scutum 3 is close to lower 4 upper surface of sparking electrode, and has between the discharging surface of insulation medium board 3 and upper sparking electrode 1 between air
Gap, has further included AC power 5, and AC power 5 is electrically connected respectively with upper and lower sparking electrode 1,4 and interleaved power.
Upper 1 upper surface of sparking electrode, 4 lower surface of lower sparking electrode are respectively perpendicular and are connected with electrode terminal, AC power 5
It is electrically connected by electrode terminal of the conducting wire respectively with upper and lower sparking electrode 1,4.
Absorption is carbon-14 in the low-level radioactive substance 2 of upper 1 discharging surface of sparking electrode.
Upper sparking electrode 1 and lower sparking electrode 4 are made of stainless steel material, and diameter is 100mm, and thickness is
6mm。
Insulation medium board 3 is made by glass or quartz or ceramics or corundum material, dielectric board diameter
It is 0.5~2mm for 200mm, thickness.
Air gap thickness between the discharging surface and insulation medium board 3 of upper sparking electrode 1 is 2~7mm.
5 frequency of AC power is 5~50kHz, and crest voltage is 5~80KV, and operating power is 2~100W, is alternately applied
In upper sparking electrode and lower sparking electrode.
The present invention includes AC power, insulation medium board, upper sparking electrode and lower sparking electrode, passes through physically or chemically side
Method is the discharging surface that upper sparking electrode is adsorbed onto with low-level radioactive substance.Insulation medium board is placed in sparking electrode and decentralization
It is close to the upper surface of lower sparking electrode between the electrode and lower surface of insulation medium board；AC power for upper sparking electrode and
Lower sparking electrode both ends power supply.
The radioactive substance in upper sparking electrode discharging surface is adsorbed, β can be continuously radiated into air gap
Ray, increases the concentration of initiating electron in air, reduces the required electric field strength of gas discharge, realize the uniform of electric discharge.By
On the one hand it is hazardous to the human body in the activity of radioactive material, is on the other hand directly related to initiating electron in gas discharge air gap
Concentration, therefore it is the carbon-14 of 5710 to choose half-life period.
Upper sparking electrode and lower sparking electrode use stainless steel material, a diameter of 100mm, thickness 6mm.Stainless steel
Material not only has good conduction, heat dissipation performance, also with adsorbability, easy to the absorption of carbon-14.Institute's sparking electrode and decentralization
The diameter and thickness of electrode is determined according to the radioactive activity of carbon-14, machining accuracy.
The air gap between upper sparking electrode and insulation medium board is 2~7mm.Upper sparking electrode and insulation medium board it
Between the air gap determined according to the radioactive activity of the power of the power supply, the species of ionized gas and carbon-14.
Insulation medium board is close to the upper surface of lower sparking electrode.Avoid existing between insulation medium board and lower sparking electrode
The air gap, has an impact the overall performance of electric discharge.
Power supply is high-voltage ac power, and frequency is 5~50kHz, and crest voltage is 5~80KV, and operating power is 2~50W,
It is alternately applied to sparking electrode and lower sparking electrode both ends.
Claims (6)
- A kind of 1. device for realizing uniform glow discharge in atmosphere air, it is characterised in that：Include be oppositely arranged it is upper Sparking electrode, lower sparking electrode, upper sparking electrode towards the lower surface of lower sparking electrode be discharging surface, and upper sparking electrode Discharging surface is adsorbed with low-level radioactive substance, insulation medium board is provided between upper and lower sparking electrode, under insulation medium board is close to Sparking electrode upper surface, and have the air gap between the discharging surface of insulation medium board and upper sparking electrode, further include exchange Power supply, AC power is electrically connected respectively with upper and lower sparking electrode and interleaved power；Absorption is in the low of upper sparking electrode discharging surface Radioactive substance is carbon-14.
- A kind of 2. device for realizing uniform glow discharge in atmosphere air according to claim 1, it is characterised in that： Upper sparking electrode upper surface, lower sparking electrode lower surface are respectively perpendicular and are connected with electrode terminal, and AC power passes through conducting wire point Electrode terminal not with upper and lower sparking electrode is electrically connected.
- A kind of 3. device for realizing uniform glow discharge in atmosphere air according to claim 1, it is characterised in that： The upper sparking electrode and lower sparking electrode are made of stainless steel material, and diameter is 100mm, and thickness is 6mm.
- A kind of 4. device for realizing uniform glow discharge in atmosphere air according to claim 1, it is characterised in that： The insulation medium board is made by glass or quartz or ceramics or corundum material, and insulation medium board is a diameter of 200mm, thickness are 0.5~2mm.
- A kind of 5. device for realizing uniform glow discharge in atmosphere air according to claim 1, it is characterised in that： Air gap thickness between the discharging surface and insulation medium board of the upper sparking electrode is 2~7mm.
- A kind of 6. device for realizing uniform glow discharge in atmosphere air according to claim 1, it is characterised in that： The ac power frequency is 5~50kHz, and crest voltage is 5~80KV, and operating power is 2~100W, is alternately applied to put Electrode and lower sparking electrode.
Priority Applications (1)
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN104619106A CN104619106A (en) | 2015-05-13 |
| CN104619106B true CN104619106B (en) | 2018-04-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
-
2015
- 2015-01-15 CN CN201510021685.2A patent/CN104619106B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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)
| Title |
|---|
| Characteristics of the stabilized glow discharge in air;RT Waters and WB Stark;<J. Phys. D: Appl. Phys.>;19751231;第8卷;416-426 * |
| μs振荡脉冲电源激励的多针-平板电极DBD特性;解向前 等;《印染》;20100530(第5期);1-4 * |
| 大气压空气中均匀介质阻挡放电的产生及放电特性;方志 等;《中国电机工程学报》;20101005;第30卷(第28期);126-132 * |
| 大气压空气辉光放电;郝艳捧 等;《电工电能新技术》;20050430;第24卷(第2期);69-72 * |
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| CN104619106A (en) | 2015-05-13 |
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