CN200997720Y - Plasma torch device for producing activated gas - Google Patents
Plasma torch device for producing activated gas Download PDFInfo
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- CN200997720Y CN200997720Y CN 200720002200 CN200720002200U CN200997720Y CN 200997720 Y CN200997720 Y CN 200997720Y CN 200720002200 CN200720002200 CN 200720002200 CN 200720002200 U CN200720002200 U CN 200720002200U CN 200997720 Y CN200997720 Y CN 200997720Y
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- plasma
- hollow structure
- high activity
- plasma flare
- gas
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Abstract
A plasma torch assembly which can produce high-activity gas is characterized in that an internal electrode, which can produce arc column, is arranged in a seat, and a nozzle, which can overpass the arc column, is arranged on the seat at the front end of the internal electrode; the internal electrode is a hollow structure with a holding space at the front end, and the holding space is provided with the arc column.
Description
Technical field
The utility model refers to especially that relevant for a kind of plasma flare device that produces high activity gas a kind of arc column that makes is elongated to increase the plasma flare device of usefulness.
Background technology
The dioxin pollution that the offal treatment technology is derived, flying dust and end slag contain puzzlements such as heavy metal, it is the problem that Environmental Protection in China unit, technical research unit and green group are perplexed most always, and at the cleaning body surface organic pollution with increase the surface activity, improve the adhesion strength of back manufacture process, change body surface characteristic (hydrophilic, hydrophobic property or different functional group), also be the problem that industrial quarters is paid close attention to always; And the plasma fusion program is exactly the novel high-tech that produces at this subject under discussion, what is meant by the plasma fusion technology? promptly be on the purposes of burning, decomposition and fusion, to use plasma science and technology, can be divided into high frequency plasma (Radio Frequency Generated Plasma) and direct current or medium and low frequency electric arc electricity (DC or Middle Frequeney Arc-Generated Plasma) two big classes.The former utilizes high frequency electromagnetic field accelerated electron bump neutral atom or molecule repeatedly, and produces plasma; The latter produces secondary electron by the ionic bombardment electrode to keep plasma.
Be used to the technology that addresses the above problem at present, major part is to adopt with direct current or medium and low frequency arc-plasma as thermal source, this arc-plasma is normally produced by plasma flare, basically be utilize the gas that sprays in the torch to make two interelectrode discharge effect stabilisations and form high temperature wait the ionization of gas field, and with regard to the mode of electric arc generation and the difference of two electrode positions, plasma flare can be divided into conveying type (transferred) and two kinds of non-conveying types (non-transferred) again.Have only an electrode in the conveying type torch, another electrode is exactly an object being treated, and therefore, the generation of plasma is that the electrode from torch extends to object being treated always.All be positioned at torch but not the conveying type plasma flare then is two electrodes, plasma only produces in torch, and the initial and terminal point of plasma is all on the two poles of the earth in torch; Therefore,, must there be gases at high pressure that plasma is blown out outside the torch in the torch, object being treated be heated so that high-temperature gas to be provided in order to handle object being treated.
And general plasma flare (plasma torch, as shown in Figure 1) utilize gas discharge (gasdischarge) electric energy to be changed into the mode of gas internal energy, can make reactions such as gas generation ionization, decomposition, and then generate highly active species of gases (for example: free radical, charged ion, excited state molecule etc.), can obtain high activity (or high temperature) gaseous species that general chemical method can't obtain.But, existing plasma flare 1 operates in high electric current (more than tens of amperes), the state of low-voltage (about tens of volts), high electric current will reduce electrode life, and, existing plasma flare 1 its electric arc is created in interior electrode 11 front ends, the heat that electrode produces can only be dispelled the heat by the rear, be unfavorable for high power operation, in addition, 12 of the arc columns of existing plasma flare 1 are created between interior electrode 11 front ends and the nozzle 13, when gas flow rate increases, will shorten the time of contact of gas and arc column 12, can't effectively electric energy be transferred to gas by arc column 12; So, the existing all unlikely in the use ideal of plasma flare 1 structure.
The inventor in view of this, adhere to the abundant meter exploitation and the actual fabrication experience of these relevant industries for many years, studied improvement at traditional structure and disappearance, a kind of plasma flare device that produces high activity gas is provided, in the hope of improving the disappearance of existing plasma flare fully.
Summary of the invention
The purpose of this utility model is to provide a kind of plasma flare device that produces high activity gas, the plasma flare device can increase contacting of gas and arc column, promote plasma flare with the efficient of electrical energy transfer, and can increase electrode life to gas.
The purpose of this utility model is to realize like this, a kind of plasma flare device that produces high activity gas, this plasma torch assembly is to be provided with the interior electrode that can produce arc column in a pedestal, the pedestal of interior electrode front end is provided with the nozzle that arc column is passed through, should interior electrode be the hollow structure that a front end is provided with accommodation space, this accommodation space be installed with described arc column.
From the above mentioned, plasma flare of the present utility model can make plasma flare after interior electrode front end is lighted, because of the effect in flow field make electric arc be pushed in the hollow structure of electrode, make arc column elongated, thereby make under the same plasma power, the voltage of plasma flare improves, electric current descends, to increase electrode life; In addition, the narrowest and small place of nozzle opening cross section of plasma flare is smaller or equal to interior electrode hollow structure front opening, the resistance of may command gas flow, gas can be rotated earlier flow into the interior jet hole that flows to again afterwards of interior electrode hollow structure, therefore, can increase contacting of gas and arc column, and then promote plasma flare the efficient of electrical energy transfer to gas.
Description of drawings
Fig. 1: the cross-sectional schematic of prior art.
Fig. 2: cross-sectional schematic of the present utility model.
Fig. 3: the embodiment one of electrode hollow structure in the utility model.
Fig. 4: the embodiment two of electrode hollow structure in the utility model.
Fig. 5: the embodiment three of electrode hollow structure in the utility model.
Fig. 6: the embodiment four of electrode hollow structure in the utility model.
Fig. 7: the embodiment five of electrode hollow structure in the utility model.
Fig. 8: the embodiment six of electrode hollow structure in the utility model.
Drawing reference numeral:
Electrode in 2 pedestals 21
211 hollow structures, 22 arc columns
23 nozzles
Electrode in 1 plasma flare 11
12 arc columns, 13 nozzles
Embodiment
At first, see also shown in Figure 2, be a kind of cross-sectional schematic that produces the plasma flare device of high activity gas of the present utility model, this plasma torch assembly is to be provided with the interior electrode 21 that can produce arc column 22 in a pedestal 2, pedestal 2 in interior electrode 21 front ends is provided with the nozzle 23 that arc column 22 is passed through, wherein:
Should interior electrode 21 be the hollow structure 211 that a front end is provided with accommodation space, this accommodation space be installed with described arc column 22.
During use, gas rotational flow in the order around the electrode 21, can make plasma flare after interior electrode 21 front ends are lighted, because of the effect in flow field make electric arc be pushed in the hollow structure 211 of electrode 21, make arc column 22 elongated, thereby make under the same plasma power, the voltage of plasma flare improves, electric current descends, and when the outside and the inboard of gas stream through hollow structure, can improve the effect of electrode heat radiation relatively, so, can increase electrode life.
In addition, the stenosis of nozzle 23 openings of may command plasma flare is smaller or equal to interior electrode 21 hollow structures 211 front openings, resistance with the may command gas flow, gas can be rotated earlier in the inflow flow to 23 mouthfuls at nozzle again in electrode 21 hollow structures 211, so, can increase contacting of gas and arc column 22, and then promote plasma flare the efficient of electrical energy transfer to gas.
Further, see also Fig. 2～shown in Figure 7, enforcement view for interior electrode 21, the spatial design of the hollow structure 211 of electrode 21 in being somebody's turn to do, according to various structure or various special purpose different spatial forms can arranged, be the long straight hole shape (as shown in Figure 2) that above-mentioned enforcement state is presented, or following various execution mode: its hollow structure 211 can be up-small and down-big convergent poroid (as shown in Figure 3), the leading hypotenuse and can help arc column 22 to be pulled in the hollow structure of convergent; Or ladder as shown in Figure 4 is poroid, can prevent that arc column 22 is trapped in the central authorities of hollow structure bottom; Or be inner fin shape, can strengthen radiating effect (as shown in Figure 6); Or up big and down small gradually perforate shape as shown in Figure 7, prevent that arc column 22 from resting on the hollow structure bottom; Or the top of hollow structure 211 is oblique top shape (as shown in Figure 5), can strengthen the translational speed of the root of arc column 22 in the hollow structure bottom.
See also shown in Figure 8ly again, for the radiating rate of electrode 21 in increasing, electrode 21 outsides can form the fin shape in it, utilize the fin shape to strengthen the effect of heat radiation.
Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.
And according to as can be known above-mentioned, the plasma flare device that can be produced high activity gas by the utility model has plurality of advantages really than prior art, and details are as follows for it:
1. a kind of plasma flare device that produces high activity gas of the present utility model can be provided with hollow structure in the interior electrode, makes arc column elongated, and under same plasma power, the voltage of plasma flare improves, electric current descends, to increase electrode life.
2. a kind of plasma flare device that produces high activity gas of the present utility model, set hollow structure in electrode can have different hollow space kenels according to demand in it, so, can increase the use effect.
3. a kind of plasma flare device that produces high activity gas of the present utility model, the design of its nozzle opening size needs smaller or equal to interior electrode hollow structure front opening, so, can increase contacting of gas and arc column, and then promote plasma flare the efficient of electrical energy transfer to gas.
Claims (9)
1. plasma flare device that can produce high activity gas, this plasma torch assembly is to be provided with the interior electrode that can produce arc column in a pedestal, pedestal in interior electrode front end is provided with the nozzle that arc column is passed through, it is characterized in that: electrode is the hollow structure that a front end is provided with accommodation space in this, and this accommodation space is installed with described arc column.
2. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the stenosis of the nozzle opening of this plasma torch is smaller or equal to interior electrode hollow structure front opening.
3. the plasma flare device that produces high activity gas as claimed in claim 1, it is characterized in that: the accommodation space of this hollow structure is long straight hole shape.
4. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the accommodation space of this hollow structure is that up-small and down-big convergent is poroid.
5. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the accommodation space of this hollow structure is that ladder is poroid.
6. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the accommodation space of this hollow structure is the fin shape.
7. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the accommodation space of this hollow structure is up big and down small gradually perforate shape.
8. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the top of the accommodation space of this hollow structure is the oblique top shape.
9. the plasma flare device that produces high activity gas as claimed in claim 1 is characterized in that: the outside fin shape that forms of interior electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720002200 CN200997720Y (en) | 2007-01-25 | 2007-01-25 | Plasma torch device for producing activated gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720002200 CN200997720Y (en) | 2007-01-25 | 2007-01-25 | Plasma torch device for producing activated gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200997720Y true CN200997720Y (en) | 2007-12-26 |
Family
ID=38996154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720002200 Expired - Fee Related CN200997720Y (en) | 2007-01-25 | 2007-01-25 | Plasma torch device for producing activated gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200997720Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483968B (en) * | 2008-01-08 | 2012-01-11 | 财团法人工业技术研究院 | Ejection type plasma gun and plasma processing device applying the same |
-
2007
- 2007-01-25 CN CN 200720002200 patent/CN200997720Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483968B (en) * | 2008-01-08 | 2012-01-11 | 财团法人工业技术研究院 | Ejection type plasma gun and plasma processing device applying the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 |