CN105555003B - A kind of method and device for reducing arc plasma generator electrode erosion - Google Patents
A kind of method and device for reducing arc plasma generator electrode erosion Download PDFInfo
- Publication number
- CN105555003B CN105555003B CN201510887674.2A CN201510887674A CN105555003B CN 105555003 B CN105555003 B CN 105555003B CN 201510887674 A CN201510887674 A CN 201510887674A CN 105555003 B CN105555003 B CN 105555003B
- Authority
- CN
- China
- Prior art keywords
- anode
- plasma generator
- interlude
- arc plasma
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H05H1/48—Generating plasma using an arc
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
Abstract
The present invention relates to a kind of method and apparatus for reducing arc plasma generator electrode erosion, the arc plasma generator device mainly includes negative electrode, anode, insulating part and outer tube.By carrying out the processing such as mechanical annular knurl, wire drawing, sandblasting, shot-peening to arc plasma generator electrode surface, change electrode surface pattern, stress state and microstructure and crystal phase structure, change the energy state of electrode surface with this, influence electric arc and be attached at the attaching reaction energy of electrode surface or scattered macro attachment point, so as to reduce the electrode erosion of arc plasma generator.
Description
Technical field
The present invention relates to a kind of method and device for reducing arc plasma generator electrode erosion.
Background technology
The non-diverting formula arc plasma generator of direct current industrial manufacture, Science Explorations, environmental protection, health care,
The application of the existing many decades in the wide field such as national defense safety and research history.The form of generator is even more varied, from normal
It is the simplest only structure of cylindrical cathode and sheath, pipe arc, stacked, to miscellaneous special construction.Nothing
By which kind of structure and purposes and the non-diverting formula electric arc of power grade, it is common the characteristics of be to lead to by electric current of gas discharge arc
Road connects negative electrode and anode.In the gases such as the argon of flowing, nitrogen, hydrogen, air or gaseous mixture, produce put between a cathode and an anode
Electric arc and heated working gas, form thousands of jets down to degree up to ten thousand.
Current density of the electric arc in electrode surface adhesion zone can exceed that 108A/m2, the generator life-span caused by electrode erosion
Problem is always this kind of generator effective use of influence, reduction maintenance cost and technical requirements, it is continuous to push wider array of long-time to
Run the bottleneck factor of application.Meanwhile the pollution of electrode erosion product also limit this kind of plasma in fine components material
Synthesis, in wind tunnel experiment the field such as material thermal characteristics accurate evaluation application.Therefore, recent decades, various reduction electrodes burn
Erosion is never interrupted with the trial for improving the plasma generator life-span.
What the large power electric arc plasma generator that high-efficiency and continuous operates in commercial Application lost with greater need for high life low fever
Generator.At present, sandwich longer interlude between a cathode and an anode in generator, widen the distance between negative electrode and anode
To improve arc voltage so that arc current is reduced under the conditions of identical arc power, to reduce electrode erosion.Or adopt simultaneously
Disperse attaching of the electric arc in electrode surface with multipair electrode group, to reduce the local current density for attaching arc root, slow down electrode
The pernicious ablation of local.Simply the hot plasma generator architecture of this structure is complicated, safeguards and expends big, the high electricity of power supply needs
Pressure design.
The content of the invention
It is an object of the invention to：For the non-diverting formula arc plasma generator anode ablation problem of direct current, propose
One kind, which reduces, can reduce arc plasma generator electrode erosion method and apparatus.
The object of the present invention is achieved like this：
The present invention provides a kind of method for reducing arc plasma generator electrode erosion,
The first step, the anode of arc plasma generator is surface-treated, electrode is attached at for influenceing electric arc
The attaching reaction energy on surface or scattered macro attachment point, so as to reduce electrode erosion；
Second step, external voltage excite and electric arc are produced between negative electrode and anode, and the electric arc transmits along negative electrode to anode direction；
3rd step, the electric arc attach the anode for carrying out surface treatment, and electric arc weakens to anode ablation.
Preferably, the anod surface treatment is mechanical annular knurl processing, wire drawing process, blasting treatment or bead.
Giving a kind of arc plasma generator for reducing electrode erosion using the above method present invention includes：
Negative electrode；
Anode, is arranged on the cathode arc transmission direction downstream, and the anode makes anode have spy by surface treatment
Determine surface texture；
Preferably, in addition to：
Interlude, it is arranged between the negative electrode and anode；
Insulating part, the insulating part both ends connect the interlude and anode respectively；
Outer tube, wrap up the interlude, the insulating part connects assembly with the anode.
Preferably, in addition to gas circuit and water cooling path,
The gas circuit, it is arranged between negative electrode and interlude and between interlude and anode, providing work for generator uses
Gas；
The water cooling path, it is arranged on space between the interlude, anode and insulating part assembly and the outer tube
It is interior, for cooling down anode, negative electrode and the interlude.
Preferably, the anod surface treatment is mechanical annular knurl processing, wire drawing process, blasting treatment or bead.
Preferably, the mechanical annular knurl processing and wire drawing process change anode surface pattern, stress state；At the sandblasting
Reason and bead change anode surface microstructure and crystal structure.
Preferably, the thickness of the anode surface mechanical treatment is on 1 millimeter magnitude, the anode surface raised points side after processing
Edge is smooth, without sharp point.
Beneficial effects of the present invention：
First, according to the species and flow and condition of work of practical application gas, generator electrode surface can be passed through
The methods of mechanical annular knurl, wire drawing, sandblasting, shot-peening, is handled.Improve operation stability and the life-span of arc plasma generator.
Brief description of the drawings
Fig. 1 is by the treated arc plasma generator schematic diagram of electrode surface；
Fig. 2 is a-quadrant enlarged drawing in Fig. 1.
Embodiment
The basic thought of the present invention be arc plasma generator electrode surface is carried out mechanical annular knurl, wire drawing, sandblasting,
The processing such as shot-peening, changes electrode surface pattern, stress state and microstructure and crystal phase structure, changes electrode surface with this
Energy state, influence electric arc and be attached at the attaching reaction energy of electrode surface or scattered macro attachment point, so as to reduce electrode erosion,
Improve operation stability and the life-span of arc plasma generator.
Fig. 1 provides a kind of arc plasma generator for reducing electrode erosion, negative electrode 1, interlude 2, anode 3, insulation
Part 4 and outer tube 5.Interlude 2 is arranged on the electric arc transmission direction downstream of negative electrode 1；Anode 3 has anode 3 by surface treatment
Specific surface structure；The both ends of insulating part 4 connect interlude 2 and anode 3 respectively；Outer tube 5 wraps up interlude 2, insulating part 4 and sun
Pole 3 connects assembly.This generator also includes gas circuit 8 and water cooling path 9.
Gas circuit 8, it is arranged between negative electrode 1 and interlude 2 and between interlude 2 and anode 3, providing work for generator uses
Gas；Water cooling path 9, it is arranged between interlude 2, anode 3 and the assembly of insulating part 4 and the outer tube in space, for cold
The anode 3, negative electrode 1 and interlude 2.The electric arc arc root 7 after jet 6 and diffusion is given in figure.
If generator does not include interlude, gas circuit 8 is positioned only between negative electrode 1 and anode 3.Water cooling path 9, is used for
Cool down the anode 3, negative electrode 1.
External voltage excites and produces electric arc between plasma cathode 1 and anode 3；Electric arc is from negative electrode 1 by the He of interlude 2
Insulating part 4 moves to the direction of anode 3, and final electric arc arc root 7 attaches anode 1.Anode 1 changes electrode surface shape by surface treatment
Looks, stress state and microstructure and crystal phase structure, change the energy state of electrode surface with this, influence electric arc and be attached at electricity
The attaching reaction energy on pole surface or scattered macro attachment point, so as to reduce electrode erosion.
Such as Fig. 2, after doing bead to anode surface, anode surface finer structures.Bead causes anode surface shape
Looks, stress state and microstructure and crystal phase structure change.Now the thickness of anode surface mechanical treatment is in 1 millimeter of amount
Level, the anode surface raised points the smooth of the edge after processing, without sharp point.
The methods of can also carrying out mechanical annular knurl, wire drawing, sandblasting to anode surface, is handled, and is equally reached change anode
The energy state on surface, influence electric arc and be attached at the attaching reaction energy of anode surface or scattered macro attachment point, reduce electric arc
The effect of ablation to anode.Mechanical annular knurl processing and wire drawing process change anode surface pattern, stress state；Blasting treatment and
Bead changes anode surface microstructure and crystal structure.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
- A kind of 1. method for reducing arc plasma generator electrode erosion, it is characterised in that comprise the following steps：The first step, the anode of arc plasma generator is surface-treated, electrode surface is attached at for influenceing electric arc Attaching reaction can or scattered macro attachment point, so as to reduce electrode erosion；The surface treatment is the processing of mechanical annular knurl, wire drawing Processing, blasting treatment or bead；Second step, external voltage excite and electric arc are produced between negative electrode and anode, and the electric arc transmits along negative electrode to anode direction；3rd step, the electric arc attach the anode for carrying out surface treatment, and electric arc weakens to anode ablation.
- A kind of 2. arc plasma generator for reducing electrode erosion, it is characterised in that including：Negative electrode；Anode, is arranged on the cathode arc transmission direction downstream, and the anode makes anode have specific table by surface treatment Face structure, the surface treatment is mechanical annular knurl processing, wire drawing process, blasting treatment or bead.
- 3. arc plasma generator according to claim 2, it is characterised in that also include：Interlude, it is arranged between the negative electrode and anode；Insulating part, the insulating part both ends connect the interlude and anode respectively；Outer tube, wrap up the interlude, the insulating part connects assembly with the anode.
- 4. arc plasma generator according to claim 3, it is characterised in that also including gas circuit and water cooling path,The gas circuit, it is arranged between negative electrode and interlude and between interlude and anode, work gas is provided for generator；The water cooling path, it is arranged between the interlude, anode and insulating part assembly and the outer tube in space, uses In cooling anode, negative electrode and the interlude.
- 5. arc plasma generator according to claim 2, it is characterised in that the mechanical annular knurl processing and wire drawing Processing changes anode surface pattern, stress state；The blasting treatment and bead change anode surface microstructure and crystalline substance To structure.
- 6. arc plasma generator according to claim 2, it is characterised in that the anode surface mechanical treatment Thickness is in 1 millimeter magnitude, the anode surface raised points the smooth of the edge after processing, without sharp point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887674.2A CN105555003B (en) | 2015-12-07 | 2015-12-07 | A kind of method and device for reducing arc plasma generator electrode erosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887674.2A CN105555003B (en) | 2015-12-07 | 2015-12-07 | A kind of method and device for reducing arc plasma generator electrode erosion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105555003A CN105555003A (en) | 2016-05-04 |
| CN105555003B true CN105555003B (en) | 2018-01-23 |
Family
ID=55833864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510887674.2A Expired - Fee Related CN105555003B (en) | 2015-12-07 | 2015-12-07 | A kind of method and device for reducing arc plasma generator electrode erosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105555003B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109949263B (en) * | 2017-12-18 | 2021-06-01 | 西安交通大学 | In-situ observation method for sputtering ablation of gas arc electrode |
| CN110220842B (en) * | 2019-05-13 | 2021-07-27 | 江苏天楹环保能源成套设备有限公司 | Electrode ablation detection tool and detection method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63154272A (en) * | 1986-12-17 | 1988-06-27 | Mitsubishi Heavy Ind Ltd | Plasma torch |
| DE4440323A1 (en) * | 1994-11-11 | 1996-05-15 | Sulzer Metco Ag | Nozzle for a torch head of a plasma spraying unit |
| DE102008022719A1 (en) * | 2007-12-06 | 2009-06-18 | Iffländer, Reinhard | Plasma burner for plasma applications e.g. powder coatings and welding and cutting, comprises toroidal cathode, plasma nozzle with connection to mounting plate comprising cooler, gas intake ports, and electrode acting as toroidal anode |
| CN203368892U (en) * | 2013-06-06 | 2013-12-25 | 深圳东方锅炉控制有限公司 | Contact arcing device for plasma generators |
-
2015
- 2015-12-07 CN CN201510887674.2A patent/CN105555003B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105555003A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102946685B (en) | Atmospheric pressure induced air dielectric barrier discharge low-temperature plasma generating means | |
| CN104244557B (en) | Atmosphere protection coaxial powder feeding plasma gun | |
| CN102149247B (en) | Device and method for generating low-energy high-density plasma by multi-level ionization | |
| CN105555003B (en) | A kind of method and device for reducing arc plasma generator electrode erosion | |
| CN203015262U (en) | Pressure-induced air dielectric barrier discharge low temperature plasma generation device | |
| CN100358198C (en) | Method for uniform glow discharge in atmosphere air | |
| CN102927570A (en) | Dielectric barrier discharge plasma axial rotational flow device | |
| CN103841741A (en) | Barometric pressure plasma generator based on dielectric barrier discharge | |
| CN105451425A (en) | Low-temperature plasma generation device in honeycomb structure | |
| CN108282950B (en) | Atmospheric pressure plasma generating device based on three-electrode surface dielectric barrier discharge | |
| CN105578699B (en) | A kind of device and method for generating cold plasma brush | |
| CN102548178A (en) | Arc plasma generator | |
| CN105491775B (en) | A kind of raising arc plasma generator operation stability and the method and apparatus in life-span | |
| CN201904965U (en) | Arc plasma generator | |
| CN202103933U (en) | Device producing low-energy high-density plasma by multistage ionization | |
| CN205249593U (en) | Honeycomb low temperature plasma generating device | |
| CN203645905U (en) | Large-power V-shaped plasma torch | |
| CN104566378B (en) | Burner nozzle based on electric arc discharge plasma | |
| CN105228329A (en) | A kind of method and arc plasma generator disperseing the electric arc raising generator life-span | |
| WO2015147703A3 (en) | Method for producing thermal and electrical energy and device for implementing said method | |
| CN104470182A (en) | Microwave plasma barometric pressure jetting device based on surface plasmon polariton | |
| Xiuquan et al. | Study on the ignition process of a segmented plasma torch | |
| CN1863429A (en) | Double hole type atmos glow discharge low-temp plasma source | |
| CN103747607A (en) | Far zone plasma spray gun device | |
| CN206181520U (en) | Laminar flow plasma generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20211207 |