CN205812485U - A kind of Gliding arc discharge plasma mjector - Google Patents

A kind of Gliding arc discharge plasma mjector Download PDF

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Publication number
CN205812485U
CN205812485U CN201620735798.9U CN201620735798U CN205812485U CN 205812485 U CN205812485 U CN 205812485U CN 201620735798 U CN201620735798 U CN 201620735798U CN 205812485 U CN205812485 U CN 205812485U
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electrode
air
outer tubular
plasma
source
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CN201620735798.9U
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王兴权
王凤鹏
黄骏
陈维
汪廷华
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GAN NAN NORMAL COLLEGE
Gannan Normal University
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GAN NAN NORMAL COLLEGE
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Abstract

The utility model discloses a kind of Gliding arc discharge plasma mjector, including 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, it is primarily characterized in that: described outer tubular electrode is the processing and forming design integrating cavity, conical nozzle, air inlet and ground electrode, conical nozzle structure is conducive to controlling the starting the arc and only occurs in exit, and has line effect;Described external air source is air or oxygen, and wherein air can be provided by air compressor scene.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.Different running parameters can be provided for different process objects and application.

Description

A kind of Gliding arc discharge plasma mjector
Technical field
This utility model relates to a kind of plasma jet device, and the sliding arc structure that specially air or oxygen drives is put Electricity low-temperature plasma jet device.
Background technology
Atmospheric non-equilibrium plasma has the advantages that electron temperature translation temperature high, heavy particle is relatively low, and permissible Produce under conditions of atmospheric pressure or superatmospheric, therefore just can obtain chemistry without vacuum system at a lower temperature Active particle required for reaction, it also has physical process and the chemical processes such as special light, heat, sound, electricity.Atmospheric pressure is non-flat Weighing apparatus plasma is in fields such as pollutant treatment, sterilizing, material surface modifying, oxidation operation process, thin film depositions There is broad prospect of application, especially there is compared with killing with medicine in terms of sterilization more preferable safety, and two will not be produced Secondary pollution.
The production method of atmospheric non-equilibrium plasma and traditional hot plasma, the production method of cold plasma Different.The most conventional method has noble gas glow discharge, corona discharge, dielectric barrier discharge, microwave discharge and sliding arc Electric discharge etc..Gliding arc discharge mode can utilize air mass flow to form plasma jet compared with other several discharge modes, It is more beneficial for the application of nonequilibrium plasma.It is the most non-flat that research shows that the heating region that sliding arc produces shows Weighing apparatus 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 air to drive due to gliding arc discharge Can produce jet, air low cost, pollution-free and be readily available, it is especially suitable for going out of disinfection application and water surface microorganism Live and process.The compositions such as a large amount of active oxygen ions of gliding arc discharge generation, energetic free radical group, easily with antibacterial, mycete and bud Protein and nucleic acid substances generation oxidation reaction in spore, virus and degeneration, make each quasi-microorganism dead.As schistosomulum is usual Floating on the surface in a static manner, Gliding arc discharge plasma jet can be done directly on schistosomulum and reaches inactivation Purpose, 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, be therefore unfavorable for amplifying in Actual the application especially application on water surface microbial treatments and field studies.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in construction, flexible, compact, solid, portable and discharge stability Atmospheric pressure Gliding arc discharge plasma mjector, the plasma jet of generation can be applicable to the aspects such as disinfection, especially Its process being suitable for water surface microorganism and on-site field use thereof.
In order to achieve the above object, the technical scheme that this utility model is used is: sliding arc involved by this utility model Discharge plasma mjector includes plasma generator, external power source and external air source;Described plasma generator Including outer tubular electrode, central electrode and the hollow insulating supporting post of band conical outlet, described insulating supporting post rise support and Fixing described outer tubular electrode and described central electrode effect, described central electrode inserts described insulating supporting post center as height Piezoelectricity pole, described outer tubular electrode has line effect as ground electrode simultaneously, and said two electrode is connected respectively to described The two poles of the earth of external power source;Described external power source is alternating current power supply or the pulse power of 5kHz ~ 30kHz;Described external air source is empty Gas or oxygen, enter plasma generator by airway.
Gliding arc discharge plasma mjector, it is characterised in that: described outer tubular electrode is collection cavity, tapered injection Mouth, air inlet and ground electrode are in the processing and forming design of one, 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 Only occur in exit, and there is line effect;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;Said two electrode is connected respectively to the two poles of the earth of described external power source, due to Discharge loop is less by external interference in the formation of plasma generator intracavity, is thus advantageous to form 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 be 5kHz ~ The alternating current power supply of 30kHz or the pulse power;Described external air source is air or oxygen, can be provided by gas bomb, and wherein air is also Can be provided by air compressor scene, enter 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 one The air or oxygen of constant current speed drives and forms plasma jet outside lower ejection chamber.Owing to described power supply is exchange or pulse electricity Source, thus inhibit arc discharge to develop into spark discharge, the plasma jet of formation is still maintained at low temperature state.This device energy 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, Also generator can be carried out overall amplification, different running parameters can be provided 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 this utility model will be greatly improved the range of application of low temperature plasma, especially It is 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.Involved by this utility model, Gliding arc discharge plasma mjector includes that plasma occurs Device, external power source 1 and external air source 6;Described plasma generator includes the outer tubular electrode 3 of band conical outlet, middle electrocardio Pole 2 and hollow insulating supporting post 4, described insulating supporting post 4 acts the effect supporting and fixing described electrode 2 and 3, described center Electrode 2 inserts described insulating supporting post 4 center as high-field electrode, and described outer tubular electrode 3 as ground electrode and provides gas Body passage, 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 be 5kHz ~ The alternating current power supply of 30kHz or the pulse power;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 steady Fixed;Described outer tubular electrode 3 main body is internal diameter 6 ~ 20mm, the metal tube of wall thickness 1 ~ 8mm, exports the taper into internal diameter 4 ~ 18mm and ties Structure, is conducive to controlling the starting the arc and only occurs in exit, and have line effect;Described central electrode 2 is the gold of external diameter 1 ~ 10mm Belong to electrode;Described insulating supporting post 4 center drilling is used for fixing described central electrode 2.Described external air source 6 is air or oxygen Gas, can be provided by gas bomb, and wherein air also can be provided by air compressor scene, enters plasma by airway and occurs Device.
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 Spray under the air or oxygen of certain flow rate drives and outside chamber, form plasma jet 5.Owing to discharge loop is at plasma Generator intracavity formed and less by external interference, be thus advantageous to be formed outside stable plasma jet 5, and described tubulose The electrode 3 ground end ground connection 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 be at air Pressure and external air source 6 steady operation when being 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 by the electrical quantity of external power source 1 and external air source 6 Gas flow rate be adjusted, it is possible to generator is carried out overall amplification, can carry for different process objects and application For different running parameters.

Claims (2)

1. a Gliding arc discharge plasma mjector, including plasma generator, external power source and external air source, its It is characterised by: described plasma generator includes that the outer tubular electrode of band conical outlet, central electrode and hollow insulation are propped up Dagger, described insulating supporting post plays support and fixing described outer tubular electrode and described central electrode effect, described central electrode Inserting described insulating supporting post center as high-field electrode, described outer tubular electrode has line simultaneously and makees as ground electrode With, said two electrode is connected respectively to the two poles of the earth of described external power source;Described external power source is the alternating current of 5kHz ~ 30kHz Source or the pulse power;Described external air source is air or oxygen, can be provided by gas bomb, and wherein air also can be by air compressor On-the-spot offer.
2. a Gliding arc discharge plasma mjector as claimed in claim 1, it is characterised in that: described tubulose dispatch from foreign news agency Extremely integrate the processing and forming design of 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, export 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 institute State central electrode.
CN201620735798.9U 2016-07-13 2016-07-13 A kind of Gliding arc discharge plasma mjector Active CN205812485U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106665801A (en) * 2017-01-10 2017-05-17 北京农学院 Treatment method for prolonging storage period of pigeon eggs
CN107420199A (en) * 2017-03-31 2017-12-01 中国人民解放军空军工程大学 The combustion-supporting driver of aeroengine combustor buring room rotational slide arc plasma

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106665801A (en) * 2017-01-10 2017-05-17 北京农学院 Treatment method for prolonging storage period of pigeon eggs
CN107420199A (en) * 2017-03-31 2017-12-01 中国人民解放军空军工程大学 The combustion-supporting driver of aeroengine combustor buring room rotational slide arc plasma

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