CN101296552B - Arc conveying device of plasma generator - Google Patents
Arc conveying device of plasma generator Download PDFInfo
- Publication number
- CN101296552B CN101296552B CN2007100975069A CN200710097506A CN101296552B CN 101296552 B CN101296552 B CN 101296552B CN 2007100975069 A CN2007100975069 A CN 2007100975069A CN 200710097506 A CN200710097506 A CN 200710097506A CN 101296552 B CN101296552 B CN 101296552B
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- CN
- China
- Prior art keywords
- arc
- plasma
- conveying
- carry
- anode
- 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.)
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- 238000005452 bending Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Images
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
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
-
- 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
- H05H1/28—Cooling arrangements
-
- 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
- H05H1/3421—Transferred arc or pilot arc mode
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a conveying arc device of a plasma generator, which is made from cylindrical magnetic conductive and heat conductive materials and comprises a conveying arc body and a conveying arc head. The external surface of the conveying arc head is provided with cooling fins and air-cooling grooves that are fully and axially distributed at intervals; the conveying arc body and the conveying arc head are welded together or casted into a whole. When in use, one end of the conveying arc body is sheathed on an anode and connected with the spout of the anode, and one end of the conveying arc head is extended to a place where arc plasma is required to reach. The conveying arc device of the invention can continuously and stably convey arc plasma jet spouted from the anode of the plasma generator to an appointed place and can ensure that the characteristics of the arc plasma such as temperature and the length of the plasma jet, etc. are not changed as far as possible in the conveying process.
Description
Technical field
The invention discloses a kind of conveying arc device that is used for plasma generator, belong to the servicing unit of plasma generator.
Background technology
Direct current atmospheric pressure arc-plasma is research and most widely used a kind of plasmoid.Because be subjected to the influence of eddy flow stabilising arc and electromagnetism stabilising arc, the high temperature and high speed jet of arc-plasma is after leaving anode nozzle, very serious to entrainmenting of ambient gas, hot and cold air mixes rapidly, the energy of jet is decayed fast, cause arc-plasma just to cool down at short notice, the gradient of axial temperature is very big.It is short to show as arc plasma jet length, can only be in the effect that obtains high temperature in the very near distance of spout.So, under particular environment, in the plasma ignition system such as pulverized-coal fired boiler, in the time of arc plasma jet being transported in anode spout plasma burner central tube far away, the arc plasma jet temperature that arrives in the central tube is just very low, causes coal dust to light.If increase electric current or increase the dielectric gas flow velocity, one side is DeGrain under distance situation far away, and anode and the cathode taps to generator may cause bigger infringement on the other hand.
Summary of the invention
The conveying arc device that the purpose of this invention is to provide a kind of plasma generator can successfully solve because under specific service condition, arc-plasma is transported to the technical barrier that causes from anode spout place far away.
The object of the present invention is achieved like this, this device is made up of the magnetic conduction of tubular, conveying arc body and the conveying arc head that Heat Conduction Material is made, carry axial alternate fin and the air-cooled groove of being a mass of of outer surface of arc head, carry the arc body and carry arc head for being connected or casting the all-in-one-piece structure, carry arc body one end to be enclosed within on the anode of plasma generator, and be connected with the anode spout, carry arc monic end to reach the place that requires arc-plasma to arrive.
The conveying arc device of aforesaid plasma generator scribbles insulating barrier at the outer surface of carrying the arc body.
The conveying arc device of aforesaid plasma generator, carrying the structure of arc head can be the straight section formula, also can be bending, the arc angle at bending structure circular arc place is realized the transmission of the various situations of arc-plasma between zero degree and 90 degree.
Advantage of the present invention is:
1, continual and steady being transported to from the distant place of anode spout of arc-plasma can be guaranteed that arc-plasma can be applied in a large amount of special environment;
2, reduce the length of anode carrier, cathode rod, anode in the plasma generator, saved a large amount of costs;
3, dwindle and safeguard the space, simplify the program of maintenance and reduced the cost of safeguarding;
4, promoted the application of arc-plasma, allowed arc-plasma be applied to the different aspect in various field and same field more flexibly.In the ignition system especially for pulverized-coal fired boiler, for country saves huge fund and a large amount of fuel oils.
Description of drawings
Fig. 1 is an example structure schematic diagram of the conveying arc device of plasma generator of the present invention.
Fig. 2 is another example structure schematic diagram of the conveying arc device of plasma generator of the present invention.
Embodiment
The present invention is by carrying the arc body and carrying arc head to form.It can be under temperature that does not change the arc-plasma that plasma generator produces and the situation that ambient gas is entrainmented, with arc-plasma from the spout of anode continue, the stable place that is transported to appointment.The used material of this device is magnetic conduction, Heat Conduction Material, as iron, and copper etc.After this device is used for plasma generator, the arc-plasma of anode spout ejection can be transported to the far-end of appointment, and carry finish after, the variations in temperature of arc ions body jet is little, and other character is not significant yet changes.
Because whole conveying arc device is made by permeability magnetic material, in the anode spout inserts device and near behind the device, the magnetic field that coil electricity produced also can axial distribution in carrying the arc device, because the effect in magnetic field, energy is the compression arc plasma effectively, increase electric arc and arc plasma jet rigidity, with continual and steady being transported to of arc plasma from plasma generator spout place far away.
There is fin and the air-cooled groove that axially distributes alternately at the outer surface of carrying arc head, increased the contact-making surface with outside atmosphere like this, can distribute fast and carry the first heat that produces because of contact arc and arc-plasma of arc, guarantee to carry the life-span of arc work; Carrying arc inside can continue rotational flow gas from generator, guaranteed the high concentration of the laminar flow shape arc-plasma energy of arc-plasma in rotational flow gas like this, the arc plasma physical efficiency is transported to efficiently the far-end of appointment.
Under special service condition, for example: be applied in the pulverized-coal fired boiler plasma ignition system, the part outer surface of this device scribbles heat-resisting insulating barrier, avoided carrying contacting of arc device and plasma burner like this, and significantly decay in the magnetic field that causes, and carries the intensity of arc internal magnetic field when having guaranteed operate as normal.
Below be further described with the accompanying drawing example illustrated:
Among the figure: the 1st, carry arc body, the 2nd, fin, the 3rd is carried arc head, the 4th, air-cooled groove.
Embodiment 1: conveying arc body 1 among Fig. 1 and conveying arc head 3 are made up of the material of magnetic conduction, heat conduction respectively.Carry arc body 1 to weld together with carrying arc head 3, wherein carry the outer surface of arc body 1 to scribble a layer insulating, fin and air-cooled groove are respectively distributing on the outer surface of conveying arc head 3.Carry the arc body to become 180 to spend angles between the arc head with carrying, the axial transmission of realization arc plasma.
Embodiment 2: Fig. 2 for realize plasma generator radially rotating shaft to the conveying arc device of technology.Carrying the structure of arc head is bending, and the angle of bending radian is adjusted the size of angle according to concrete applicable cases between zero degree and 90 degree.
Embodiment 3: the material of conveying arc body 1 among Fig. 1 and Fig. 2 and the first 3 usefulness magnetic conductions of conveying arc, heat conduction is cast as an integral body, and other structures and technology and Fig. 1 or Fig. 2 are identical.
Claims (1)
1. the conveying arc device of a plasma generator, it is characterized in that this device is by the magnetic conduction of tubular, conveying arc body that Heat Conduction Material is made with carry that arc is first to be formed, carry axial alternate fin and the air-cooled groove of being a mass of of outer surface of arc head, carry the arc body and carry arc head for being connected or casting the all-in-one-piece structure, carry arc body one end to be enclosed within on the anode, and be connected with the anode spout, carry arc monic end to reach the place that requires arc-plasma to arrive; Scribble insulating barrier at the outer surface of carrying the arc body; Carrying the first structure of arc is straight section or bending, and the arc angle at bending structure circular arc place is between zero degree and 90 degree.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100975069A CN101296552B (en) | 2007-04-25 | 2007-04-25 | Arc conveying device of plasma generator |
| PCT/CN2007/002085 WO2008131605A1 (en) | 2007-04-25 | 2007-07-06 | Transferring arc device of plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100975069A CN101296552B (en) | 2007-04-25 | 2007-04-25 | Arc conveying device of plasma generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101296552A CN101296552A (en) | 2008-10-29 |
| CN101296552B true CN101296552B (en) | 2011-04-20 |
Family
ID=39925175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100975069A Active CN101296552B (en) | 2007-04-25 | 2007-04-25 | Arc conveying device of plasma generator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101296552B (en) |
| WO (1) | WO2008131605A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2547178B1 (en) * | 2009-11-04 | 2014-07-16 | Siemens Aktiengesellschaft | Plasma spray nozzle with internal injection |
| FR2959906B1 (en) * | 2010-05-05 | 2012-05-04 | Pek 38 40 | METHOD AND DEVICE FOR GENERATING A NON-ISOTHERMIC PLASMA JET |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2251243Y (en) * | 1996-01-30 | 1997-04-02 | 核工业西南物理研究院 | Magnetic declination filtering guide-tube type cathod arc plasma source |
| US6215091B1 (en) * | 1998-06-03 | 2001-04-10 | Korea Accelerator And Plasma Research Association | Plasma torch |
| CN2479380Y (en) * | 2001-01-15 | 2002-02-27 | 烟台开发区龙源电力燃烧控制工程有限公司 | Plasma guide pipe for plasma igniter |
| CN201039577Y (en) * | 2007-04-25 | 2008-03-19 | 烟台龙源电力技术有限公司 | Transport arc device for plasm generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853515A (en) * | 1988-09-30 | 1989-08-01 | The Perkin-Elmer Corporation | Plasma gun extension for coating slots |
| US6888093B2 (en) * | 2003-06-26 | 2005-05-03 | Innerlogic, Inc. | Apparatus for proper alignment of components in a plasma arc torch |
| CN100585279C (en) * | 2006-05-10 | 2010-01-27 | 中国科学技术大学 | A pulverized coal ignition device and ignition method |
-
2007
- 2007-04-25 CN CN2007100975069A patent/CN101296552B/en active Active
- 2007-07-06 WO PCT/CN2007/002085 patent/WO2008131605A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2251243Y (en) * | 1996-01-30 | 1997-04-02 | 核工业西南物理研究院 | Magnetic declination filtering guide-tube type cathod arc plasma source |
| US6215091B1 (en) * | 1998-06-03 | 2001-04-10 | Korea Accelerator And Plasma Research Association | Plasma torch |
| CN2479380Y (en) * | 2001-01-15 | 2002-02-27 | 烟台开发区龙源电力燃烧控制工程有限公司 | Plasma guide pipe for plasma igniter |
| CN201039577Y (en) * | 2007-04-25 | 2008-03-19 | 烟台龙源电力技术有限公司 | Transport arc device for plasm generator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008131605A1 (en) | 2008-11-06 |
| CN101296552A (en) | 2008-10-29 |
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| C14 | Grant of patent or utility model | ||
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