CN106028616A - Gliding arc discharge plasma jet generation device and method thereof - Google Patents
Gliding arc discharge plasma jet generation device and method thereof Download PDFInfo
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- CN106028616A CN106028616A CN201610549334.3A CN201610549334A CN106028616A CN 106028616 A CN106028616 A CN 106028616A CN 201610549334 A CN201610549334 A CN 201610549334A CN 106028616 A CN106028616 A CN 106028616A
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- electrode
- air
- outer tubular
- arc discharge
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
Abstract
The invention discloses a gliding arc discharge plasma jet generation device and a method thereof. The device comprises a plasma generator, an external power supply and an external gas source, wherein the plasma generator comprises a tubular external electrode with a tapered outlet, a central electrode and a hollow insulated supporting column. The device is mainly characterized in that the tubular external electrode has a forming and processing design which integrates a cavity body, a tapered nozzle, a gas inlet and a grounding electrode as a whole, and due to the tapered nozzle structure, arc striking is controlled to only happen at the outlet, and a beam current role is played; the external gas source is air or oxygen, and the air can be provided by an air compressor in the field. Under effects of high voltage, the plasma generator performs discharge and arc striking at the narrowest distance place between two electrodes and jetting out of the cavity under driving of a certain velocity of air or oxygen is carried out to form plasma jet. Different working parameters can be provided in view of different processing objects and application fields.
Description
Technical field
The present invention relates to a kind of plasma jet generating means and method, the sliding arc structure discharge low-temperature plasma jet flow generating apparatus of specially air or oxygen driving and method.
Background technology
Atmospheric non-equilibrium plasma has the advantages that electron temperature translation temperature high, heavy particle is relatively low, and can produce under conditions of atmospheric pressure or superatmospheric, therefore just can obtain the active particle required for chemical reaction at a lower temperature without vacuum system, it also has physical process and the chemical processes such as special light, heat, sound, electricity.Atmospheric non-equilibrium plasma has broad prospect of application in fields such as pollutant treatment, sterilizing, material surface modifying, oxidation operation process, thin film depositions, especially there is compared with killing with medicine in terms of sterilization more preferable safety, and secondary pollution will not be produced.
The production method of atmospheric non-equilibrium plasma is different with the production method of traditional hot plasma, cold plasma.The most conventional method has noble gas glow discharge, corona discharge, dielectric barrier discharge, microwave discharge and gliding arc discharge etc..Gliding arc discharge mode can utilize air mass flow to form plasma jet compared with other several discharge modes, is more beneficial for the application of nonequilibrium plasma.Research shows that the heating region that sliding arc produces shows obvious non-equilibrium property, the input electric energy of more than 80% raising by nonequilibrium plasma stimulating chemical reaction efficiency, therefore gliding arc discharge capacity usage ratio is the highest, it is thus possible to produce more and quantity active particle.Only need due to gliding arc discharge air to drive and can produce jet, air low cost, pollution-free and be readily available, it is especially suitable for disinfection application and the inactivation treatment of water surface microorganism.A large amount of active oxygen ions that gliding arc discharge produces, the composition such as energetic free radical group, easily with protein in antibacterial, mycete and spore, virus and nucleic acid substances generation oxidation reaction and degeneration, make each quasi-microorganism dead.As schistosomulum floats on the surface the most in a static manner, Gliding arc discharge plasma jet can be done directly on schistosomulum and reaches the purpose of inactivation, is so possible not only to the side effect avoiding medicine to cause human body, also will not damage environment.
Gliding arc discharge device is generally made up of 2 blade type electrodes, and the narrowest place punctures formation slip electric arc between electrode.Gliding arc discharge apparatus structure underaction that this blade type electrode is constituted, compact, portable and stable, therefore it is unfavorable for amplifying in reality the application especially application on water surface microbial treatments and field studies.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, flexible, compact, solid, the portable and atmospheric pressure Gliding arc discharge plasma jet flow generating method of discharge stability and device, the plasma jet produced can be applicable to the aspects such as disinfection, is particularly suitable for process and the on-site field use thereof of water surface microorganism.
In order to achieve the above object, the technical solution adopted in the present invention is: Gliding arc discharge plasma mjector involved in the present invention includes plasma generator, external power source and external air source；Described plasma generator includes the outer tubular electrode of band conical outlet, central electrode and hollow insulating supporting post, described insulating supporting post plays support and fixing described outer tubular electrode and described central electrode effect, described central electrode inserts described insulating supporting post center as high-field electrode, described outer tubular electrode has line effect as ground electrode simultaneously, and said two electrode is connected respectively to the two poles of the earth of described external power source；Described external power source is alternating current power supply or the pulse power of 5kHz ~ 30kHz；Described external air source is air or oxygen, enters plasma generator by airway.
Gliding arc discharge plasma mjector, it is characterised in that: described outer tubular electrode is the processing and forming design integrating cavity, conical nozzle, air inlet and ground electrode, and simple in construction and dependable performance are stable；Described outer tubular electrode main body is internal diameter 6 ~ 20mm, the metal tube of wall thickness 1 ~ 8mm, exports the pyramidal structure into internal diameter 4 ~ 18mm, is conducive to controlling the starting the arc and only occurs in exit, and has line effect；Described central electrode is the metal electrodes such as the stainless pin of external diameter 1 ~ 10mm, tungsten filament；Described insulating supporting post center drilling is used for fixing described central electrode；Said two electrode is connected respectively to the two poles of the earth of described external power source, owing to discharge loop is less by external interference in the formation of plasma generator intracavity, it is thus advantageous to be formed stable plasma jet, and the ground end ground connection that described outer tubular electrode is by power supply, to ensure equipment safety；Described external power source is alternating current power supply or the pulse power of 5kHz ~ 30kHz；Described external air source is air or oxygen, can be provided by gas bomb, and wherein air also can be provided by air compressor scene, enters plasma generator by airway.
Plasma generator is the spacing of the said two electrode the narrowest place electric discharge starting the arc under action of high voltage, and forms plasma jet outside ejection chamber under the air or oxygen of certain flow rate drives.Owing to described power supply is exchange or the pulse power, thus inhibiting arc discharge to develop into spark discharge, the plasma jet of formation is still maintained at low temperature state.This device can steady operation under atmospheric pressure and time source of the gas is air or oxygen, and to keep plasma jet temperature be room temperature or slightly above room temperature.The plasma jet area of this device generation, length, intensity can be adjusted by power supply electrical quantity and gas flow rate, it is possible to generator carries out overall amplification, can provide different running parameters for different process objects and application.
The use of this device is conducive to simplifying discharging structure, makes device more flexible, compact, solid, portable, and is provided that stable arc discharging plasma jet.Only need due to gliding arc discharge air or oxygen to drive and can produce jet, particularly air low cost, pollution-free and be readily available, therefore the present invention will be greatly improved the range of application of low temperature plasma, be particularly suitable for disinfection application and the inactivation treatment of water surface microorganism.
Accompanying drawing explanation
Fig. 1 is Gliding arc discharge plasma mjector structural representation.
Detailed description of the invention
As shown in Figure 1.Gliding arc discharge plasma mjector involved in the present invention includes plasma generator, external power source 1 and external air source 6；Described plasma generator includes the outer tubular electrode 3 of band conical outlet, central electrode 2 and hollow insulating supporting post 4, described insulating supporting post 4 acts the effect supporting and fixing described electrode 2 and 3, described central electrode 2 inserts described insulating supporting post 4 center as high-field electrode, described outer tubular electrode 3 is as ground electrode and provides gas passage, and said two electrode 2 and 3 is connected respectively to the two poles of the earth of described external power source 1；Described external power source 1 is alternating current power supply or the pulse power of 5kHz ~ 30kHz；Described external air source 6 is air or oxygen.It is characterized in that: described outer tubular electrode 3 is the processing and forming design integrating cavity, conical nozzle, air inlet and ground electrode, and simple in construction and dependable performance are stable；Described outer tubular electrode 3 main body is internal diameter 6 ~ 20mm, the metal tube of wall thickness 1 ~ 8mm, exports the pyramidal structure into internal diameter 4 ~ 18mm, is conducive to controlling the starting the arc and only occurs in exit, and has line effect；Described central electrode 2 is the metal electrodes such as the stainless pin of external diameter 1 ~ 10mm, tungsten filament；Described insulating supporting post 4 center drilling is used for fixing described central electrode 2.Described external air source 6 is air or oxygen, can be provided by gas bomb, and wherein air also can be provided by air compressor scene, enters plasma generator by airway.
The spacing the narrowest place electric discharge starting the arc of plasma generator said two electrode 2 and 3 under action of high voltage, and under the air or oxygen of certain flow rate drives, spray formation plasma jet 5 outside chamber.Owing to discharge loop is less by external interference in the formation of plasma generator intracavity, it is thus advantageous to be formed stable plasma jet 5, and the ground end ground connection that described outer tubular electrode 3 is by power supply, to ensure equipment safety.Owing to described external power source 1 is exchange or the pulse power, thus inhibiting arc discharge to develop into spark discharge, the plasma jet of formation is still maintained at low temperature state.This device can steady operation under atmospheric pressure and time external air source 6 is air or oxygen, and to keep plasma jet 5 temperature be room temperature or slightly above room temperature.Plasma jet 5 area of this device generation, length, intensity can be adjusted by the gas flow rate of the electrical quantity of external power source 1 and external air source 6, also generator can be carried out overall amplification, different running parameters can be provided for different process objects and application.
Claims (3)
1. a Gliding arc discharge plasma jet flow generating apparatus, described device includes plasma generator, external power source and external air source, it is characterized in that: described plasma generator includes the outer tubular electrode of band conical outlet, central electrode and hollow insulating supporting post, described insulating supporting post plays support and fixing described outer tubular electrode and described central electrode effect, described central electrode inserts described insulating supporting post center as high-field electrode, described outer tubular electrode has line effect as ground electrode simultaneously, said two electrode is connected respectively to the two poles of the earth of described external power source；Described external power source is alternating current power supply or the pulse power of 5kHz ~ 30kHz；Described external air source is air or oxygen, can be provided by gas bomb, and wherein air also can be provided by air compressor scene.
2. a Gliding arc discharge plasma mjector as claimed in claim 1, it is characterised in that: described outer tubular electrode is the processing and forming design integrating cavity, conical nozzle, air inlet and ground electrode；Described outer tubular electrode main body is internal diameter 6 ~ 20mm, the metal tube of wall thickness 1 ~ 8mm, exports the pyramidal structure into internal diameter 4 ~ 18mm, is conducive to controlling the starting the arc and only occurs in exit；Described central electrode is the metal electrode of external diameter 1 ~ 10mm；Described insulating supporting post center drilling is used for fixing described central electrode.
3. the gliding arc discharge method for generation of a Gliding arc discharge plasma mjector as claimed in claim 1, it is characterized in that: the spacing of described outer tubular electrode and the described central electrode the narrowest place electric discharge starting the arc under action of high voltage, and form plasma jet outside ejection chamber under the air or oxygen of certain flow rate drives.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610549334.3A CN106028616A (en) | 2016-07-13 | 2016-07-13 | Gliding arc discharge plasma jet generation device and method thereof |
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| CN201610549334.3A CN106028616A (en) | 2016-07-13 | 2016-07-13 | Gliding arc discharge plasma jet generation device and method thereof |
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Cited By (8)
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|---|---|---|---|---|
| CN106581709A (en) * | 2016-12-31 | 2017-04-26 | 合肥优亿科机电科技有限公司 | Atmospheric plasma sterilizer used in medical device sterilization apparatus |
| CN106665801A (en) * | 2017-01-10 | 2017-05-17 | 北京农学院 | Treatment method for prolonging storage period of pigeon eggs |
| CN108013930A (en) * | 2017-12-25 | 2018-05-11 | 中国科学院合肥物质科学研究院 | A kind of plasma treatment nasopharyngeal carcinoma generating means and conchoscope |
| CN108180075A (en) * | 2017-12-15 | 2018-06-19 | 中国人民解放军空军工程大学 | The rotational slide arc plasma fuel oil splitting decomposition head of aeroengine combustor buring room |
| CN109864646A (en) * | 2019-04-01 | 2019-06-11 | 安徽理工大学 | A kind of air plasma hand washing machine without water flow |
| CN110010444A (en) * | 2019-03-29 | 2019-07-12 | 广州安诺科技股份有限公司 | A kind of more electric field mass spectrometer ion sources |
| CN110036696A (en) * | 2016-10-21 | 2019-07-19 | 海别得公司 | Plasma electric tool |
| CN114051306A (en) * | 2021-11-15 | 2022-02-15 | 安徽工业大学 | Beam diameter-adjustable atmospheric pressure plasma jet generator and using method thereof |
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2016
- 2016-07-13 CN CN201610549334.3A patent/CN106028616A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110036696A (en) * | 2016-10-21 | 2019-07-19 | 海别得公司 | Plasma electric tool |
| CN110036696B (en) * | 2016-10-21 | 2024-03-08 | 海别得公司 | Plasma electric tool |
| CN106581709A (en) * | 2016-12-31 | 2017-04-26 | 合肥优亿科机电科技有限公司 | Atmospheric plasma sterilizer used in medical device sterilization apparatus |
| CN106665801A (en) * | 2017-01-10 | 2017-05-17 | 北京农学院 | Treatment method for prolonging storage period of pigeon eggs |
| CN108180075A (en) * | 2017-12-15 | 2018-06-19 | 中国人民解放军空军工程大学 | The rotational slide arc plasma fuel oil splitting decomposition head of aeroengine combustor buring room |
| CN108013930A (en) * | 2017-12-25 | 2018-05-11 | 中国科学院合肥物质科学研究院 | A kind of plasma treatment nasopharyngeal carcinoma generating means and conchoscope |
| CN110010444A (en) * | 2019-03-29 | 2019-07-12 | 广州安诺科技股份有限公司 | A kind of more electric field mass spectrometer ion sources |
| CN110010444B (en) * | 2019-03-29 | 2024-02-09 | 广州安诺科技股份有限公司 | Ion source of multi-electric-field mass spectrometer |
| CN109864646A (en) * | 2019-04-01 | 2019-06-11 | 安徽理工大学 | A kind of air plasma hand washing machine without water flow |
| CN114051306A (en) * | 2021-11-15 | 2022-02-15 | 安徽工业大学 | Beam diameter-adjustable atmospheric pressure plasma jet generator and using method thereof |
| CN114051306B (en) * | 2021-11-15 | 2024-02-06 | 安徽工业大学 | Atmospheric pressure plasma jet generator with adjustable beam diameter and use method |
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