CN208462124U - A kind of plasmatorch device - Google Patents

A kind of plasmatorch device Download PDF

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Publication number
CN208462124U
CN208462124U CN201821051962.XU CN201821051962U CN208462124U CN 208462124 U CN208462124 U CN 208462124U CN 201821051962 U CN201821051962 U CN 201821051962U CN 208462124 U CN208462124 U CN 208462124U
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positive electrode
electrode
negative electrode
insulator
target
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CN201821051962.XU
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Chinese (zh)
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周春光
张庆麟
严圣军
陈竹
李军
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Canadian Hop Corp Ltd
Jiangsu Tianying Environmental Protection Energy Equipment Co Ltd
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Canadian Hop Corp Ltd
Jiangsu Tianying Environmental Protection Energy Equipment Co Ltd
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Abstract

The utility model discloses a kind of plasmatorch devices, including negative electrode, negative electrode electromagnetic coil, target, intermediate inserting paragraph insulator, inserting paragraph insulator, positive electrode, positive electrode electromagnetic coil, positive electrode permanent magnet.There is intermediate inserting paragraph insulator between the target and negative electrode, there is inserting paragraph insulator between target and positive electrode.When work, under the action of voltage difference, electric arc is first formed between negative electrode and target.After the starting the arc succeeds and stablizes, ionised species are filled between negative electrode and positive electrode, under the action of upstream airflow, the arc between negative electrode and target is led to downstream, to puncture between negative electrode and positive electrode and form stable electric arc.In the case where air-flow and magnetic induction coil form magnetic field force effect, the electric arc formed between negative electrode and positive electrode can rotate and cyclical swing position, prevents electrode only in a certain narrow region ablation, to extend the service life of electrode.

Description

A kind of plasmatorch device
Technical field
The present invention relates to plasma torch technology fields, and in particular to a kind of plasmatorch device.
Background technique
Plasma torch generates the particle of superelevation temperature-heat-source and a large amount of high reaction activity ionic states by electric arc, can adopt Use the oxidation such as air, nitrogen, vapor, argon gas, reduction or inert gas as carrier gas, in gasification, cracking, reaction, melting With smelt etc. various functions industrial furnace in have wide application prospects.In industrial application, according to specific requirements, it can be designed to Transferred arc formula, untransferable arc formula and the association type plasma torch for having both transferred arc and untransferable arc.
US Westinghouse company and phoenix company develop and answer with more than 30 years high powered plasma torches (100-600kW) With experience, product is domestic in recent years also to have many companies in the exploitation for being dedicated to plasmatorch at series and highly developed, still Either there is larger difference in terms of the diversity of torch carrier gas and the maturation and stability of product with external plasmatorch product Away from.Electrode is the maximum consumable component of plasmatorch.On the one hand, the service life of electrode cross section will the amount of increasing consumption, thus increase operation at This.On the other hand, be excessively replaced as frequently as electrode, also increase human cost, influence technique production, thus influence product quality and Increase security risk.Currently, the plasmatorch production of domestic mainstream and research and development institution can achieve 300 hours electrode life, but It is that can achieve 1000 hours external some colleague's electrode lives.Especially for the plasma of super high power (megawatt or more) Torch, since it is desired that input current it is bigger, electrode life is shorter.The country there is no the plasmatorch of the even higher power of megawatt rank Exploitation report and commercial product.The plasmatorch of super high power metallurgy smelt and grey melt process in terms of be all widely used before Scape is successfully developed the promotion of greatly power-assisted related process level, and the promotion of especially crucial electrode life will be very big Ground reduces production and operation cost, provides safeguard for safe operation.
Summary of the invention
The purpose of the present invention is aiming at the problem that super high power plasmatorch consumption of electrode, optimize to improve solution never Foot proposes super high power plasmatorch device.
In order to solve the above technical problems, the present invention adopts the following technical scheme that: a kind of plasmatorch device, negative electrode, yin Electrode electromagnetic coil, target, intermediate inserting paragraph insulator, inserting paragraph insulator, positive electrode, positive electrode electromagnetic coil and sun Electrode permanent magnet;There is intermediate inserting paragraph insulator between the target and negative electrode;Have between target and positive electrode Inserting paragraph insulator;There is negative electrode electromagnetic coil in the outside of the negative electrode;The outside of the positive electrode is provided with positive electrode electricity Magnetic coil and positive electrode permanent magnet.
Further, the negative electricity extremely hollow structure, the tail portion of negative electrode are provided with wind distributing hole gas supply, and air-flow is along yin Electrode axis parallel direction is fed;Negative electrode electromagnetic coil is located at the outside of negative electrode, the magnetic field strength of negative electrode hollow region It can be realized by control electromagnetic coil;Negative electrode uses cooling by water.
Further, the target is hollow structure, and target uses cooling by water;The target and There is feeder between centre insertion insulator.
Further, there is feeder between the intermediate inserting paragraph insulator and negative electrode.
Further, the inserting paragraph insulator is multistage insulating part, the series of insulating part by plasmatorch power It determines;Cooling by water is used outside insulating part, and has feeder between insulating part and adjacent insulating part.
It further, is setting feeder between inserting paragraph insulator and target.
Further, the positive electricity extremely copper electrode, positive electrode are externally provided with positive electrode electromagnetic coil and positive electrode permanent magnetism Water cooling plant is arranged between positive electrode and positive electrode electromagnetic coil and positive electrode permanent magnet in body;The positive electrode and inserting paragraph Feeder is equipped between insulator.
This electrode uses target starting the arc mode, realizes that plasmatorch can be in the condition of low current intensity and high voltage The lower success starting the arc and stable operation, avoid ablation of the high current intensity to electrode under the conditions of super high power.
The present invention uses electric current magnetic induction coil, realizes the rotation of negative electrode region arc column, arc column starting point is along toroid Track rotation.
The present invention uses electric current magnetic induction coil, realizes the rotation of positive electrode region arc column, arc column drop point is along toroid Track rotation.
The present invention realizes arc using the start position of time-dependent current magnetic induction coil and inverted draft control negative electrode arc column Regional movement of the column starting point in certain area.
The present invention uses time-dependent current magnetic induction coil, permanent magnet coil and gas flow optimized positive electrode arc column drop point position It sets, realizes arc column drop point in the regional movement of certain area.
Beneficial effects of the present invention: present invention employs target strikings, realize and are formed between negative electrode and positive electrode Low current intensity high voltage differential arc column, avoids ablation of the high current intensity electric arc to electrode;Using strength and variable magnetic strength Answer coil formed magnetic field force control arc column moved between positive electrode and negative electrode, realize electric arc starting point and drop point compared with Wide regional activity greatly extends the service life of positive electrode and negative electrode.
Detailed description of the invention
It, below will be to needed in the embodiment in order to more clearly illustrate the technical solution in the embodiment of the present invention Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments recorded in the present invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is the striking schematic diagram of super high power plasmatorch target.
Change inter-electrode arc column starting point and drop point site schematic diagram under Fig. 2 invariable power, galvanostatic conditions.
Change inter-electrode arc column starting point and drop point site schematic diagram under the conditions of Fig. 3 invariable power, time-dependent current.
Specific embodiment
Technical solution of the present invention will be clearly and completely described by specific embodiment below.
Embodiment 1
As shown in Figure 1, being a kind of plasmatorch device of the invention, including negative electrode 1, negative electrode electromagnetic coil 2, centre Electrode 4, intermediate inserting paragraph insulator 3, inserting paragraph insulator 5, positive electrode 8, positive electrode electromagnetic coil 6 and positive electrode permanent magnet 7; There is intermediate inserting paragraph insulator 3 between the target 4 and negative electrode 1;There is inserting paragraph between target 4 and positive electrode 8 Insulator 5;There is negative electrode electromagnetic coil 2 in the outside of the negative electrode 1;The outside of the positive electrode 8 is provided with positive electrode electromagnetism Coil 6 and positive electrode permanent magnet 7.There is feeder A10 between target 4 and intermediate inserting paragraph insulator 3.Inserting paragraph insulation Body 5 is stagewise, series quantity and length by torch power decision, it is at different levels between have feeder B12.
Negative electrode 1 of the invention is hollow structure, and the tail portion of negative electrode 1 is provided with feeder, and air-flow is along negative electricity polar axis Line parallel direction is fed;Negative electrode electromagnetic coil 2 is located at the outside of negative electrode, and the magnetic field strength of negative electrode hollow region can lead to Cross the realization of control electromagnetic coil;Negative electrode 1 uses water cooling.
Target 4 of the invention is hollow structure, and target 4 uses water cooling;The target and intermediate insertion There is feeder between insulator.
There is feeder before intermediate inserting paragraph insulator 3 of the invention and negative electrode 1.
Inserting paragraph insulator 5 of the invention is multistage insulating part, the series of insulating part by plasmatorch power decision;Absolutely There is water cooling outside edge part, and has feeder between insulating part and adjacent insulating part.Inserting paragraph insulator 5 and centre of the invention Feeder is set between electrode 4.
Positive electrode 8 of the invention is externally provided with positive electrode electromagnetic coil 6 and positive electrode permanent magnet 7, in positive electrode 8 and positive electrode Water cooling is set between electromagnetic coil 6 and positive electrode permanent magnet 7;Gas supply dress is equipped between the positive electrode 8 and inserting paragraph insulator 5 It sets.
The feeder of the utility model is multiple air vents, and gas is entered by air vent tangent line.Cooling device, water cooling Device is by leak water in inside (electrode and insulating materials) in fact
When starting, the starting the arc between present negative electrode 1 and target 4 forms electric arc 9;After success striking, in gas velocity Under the action of degree 22, the downward downstream of arc, gas is ionized between negative electrode 1 and positive electrode 8, and forms electric arc by successfully breakdown 16。
Change inter-electrode arc column starting point and drop point method under 2 invariable power of embodiment, galvanostatic conditions
Under constant current service condition, it may be implemented changing arc column between a certain state modulator negative electrode and positive electrode Starting point perhaps move back forward dynamic formula control system change accordingly the drop point of another state modulator arc column to correspondingly preceding or It moves backward, compensates, to realize that electric arc column voltage and torch run the constant of power;As shown in Fig. 2, including following several Step:
1) electric arc 20 is formed between negative electrode 1 and positive electrode 8, electric arc rotates under the action of magnetic field 2 and 6;
2) increase the effect of air-flow 11, arc is mobile toward the left side in the starting point of cathode 1, at this point, correspondingly, arc column is in anode Drop point also will receive corresponding fluctuation and be no longer secured to original point, by adjusting the magnetic strength of air velocity 13 and electromagnetic coil 6 Intensity is answered, to change the drag of electric arc, by the drop point control of arc column as shown in 14 in figure, maintains arc column starting point and drop point position Set stabilization;
3) similarly, weaken air-flow 11, arc column moves right in the starting point of cathode 1, correspondingly changes air velocity at this time 13 and the magnetic induction intensity of electromagnetic coil 6 maintain arc column drop point as shown in 15 in figure, maintenance to change the drag of electric arc Arc column length, so that operation power be maintained to fluctuate in a small range;
Change inter-electrode arc column starting point and drop point method under the conditions of 3 invariable power of embodiment, time-dependent current
Under time-dependent current service condition, after changing electric current, by the relation equation of foundation, by changing a certain parameter control Arc column starting point forward or moves back the drop point phase of dynamic formula and another state modulator arc column between negative electrode processed and positive electrode It forward or moves backward with answering, changes the distance between starting point and drop point, to change voltage, voltage is carried out to curent change Compensation, to realize the output-constant operation of torch;As shown in figure 3, comprising the following steps:
1) electric arc 18 is formed between negative electrode 1 and positive electrode 8, electric arc rotates under the action of magnetic field 2 and 6;
2) increase arc column current strength, and maintain start position of the arc on cathode 1 constant, by adjusting air velocity 13 With the magnetic induction intensity of electromagnetic coil 6, to change the drag of electric arc, by the drop point control of arc column as shown in 17 in figure, phase It reduces arc column with answering in 1 starting point of cathode and in the distance of 8 drop point of anode, reduces arc voltage, to maintain operation power in small model Enclose interior fluctuation;
2) increase arc column current strength, change simultaneously the effect of air-flow 11, change start position of the arc on cathode 1 and move right It is dynamic, by adjusting the magnetic induction intensity of air velocity 13 and electromagnetic coil 6, to change the drag of electric arc, by the drop point of arc column Control correspondingly reduces arc column in 1 starting point of cathode and in the distance of 8 drop point of anode as shown in 19 in figure, and drop point is past moves to right It is dynamic, maintain operation power to fluctuate in a small range.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to design of the invention It is defined with range, without departing from the design concept of the invention, ordinary engineering and technical personnel is to this hair in this field The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, claimed skill of the invention Art content is all documented in technical requirements book.

Claims (7)

1. a kind of plasmatorch device, it is characterised in that: negative electrode, negative electrode electromagnetic coil, target, intermediate inserting paragraph are exhausted Edge body, inserting paragraph insulator, positive electrode, positive electrode electromagnetic coil and positive electrode permanent magnet;The target and negative electrode it Between have intermediate inserting paragraph insulator;There is inserting paragraph insulator between target and positive electrode;There is yin in the outside of the negative electrode Electrode electromagnetic coil;The outside of the positive electrode is provided with positive electrode electromagnetic coil and positive electrode permanent magnet.
2. a kind of plasmatorch device according to claim 1, it is characterised in that: the negative electricity extremely hollow structure, The tail portion of negative electrode is provided with wind distributing hole gas supply, and air-flow is fed along negative electrode axis parallel direction;Negative electrode electromagnetic coil is located at The magnetic field strength of the outside of negative electrode, negative electrode hollow region can be realized by control electromagnetic coil;Negative electrode uses water cooling It is cooling.
3. a kind of plasmatorch device according to claim 1, it is characterised in that: the target is hollow knot Structure, target use cooling by water;There is feeder between the target and intermediate insertion insulator, feeder is set There are multiple air vents, plasmatorch carrier gas is tangentially entered and by air vent along inner wall annularly flow.
4. a kind of plasmatorch device according to claim 1, it is characterised in that: the intermediate inserting paragraph insulator and yin There is feeder between electrode.
5. a kind of plasmatorch device according to claim 1, it is characterised in that: the inserting paragraph insulator is multistage Insulating part, the series of insulating part by plasmatorch power decision;Use cooling by water outside insulating part, and insulating part and adjacent There is feeder between insulating part.
6. a kind of plasmatorch device according to claim 1, it is characterised in that: inserting paragraph insulator and target it Between feeder is set.
7. a kind of plasmatorch device according to claim 1, it is characterised in that: the positive electricity extremely copper electrode, sun Electrode is externally provided with positive electrode electromagnetic coil and positive electrode permanent magnet, in positive electrode and positive electrode electromagnetic coil and positive electrode permanent magnet Between cooling device is set;Feeder is equipped between the positive electrode and inserting paragraph insulator.
CN201821051962.XU 2018-07-04 2018-07-04 A kind of plasmatorch device Active CN208462124U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108990249A (en) * 2018-07-04 2018-12-11 加拿大艾浦莱斯有限公司 A kind of plasmatorch device and the method for extending electrode life
CN109936904A (en) * 2019-04-23 2019-06-25 武汉天和技术股份有限公司 A kind of segmented plasma flare anode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108990249A (en) * 2018-07-04 2018-12-11 加拿大艾浦莱斯有限公司 A kind of plasmatorch device and the method for extending electrode life
CN108990249B (en) * 2018-07-04 2020-08-25 加拿大艾浦莱斯有限公司 Plasma torch device and method for prolonging service life of electrode
CN109936904A (en) * 2019-04-23 2019-06-25 武汉天和技术股份有限公司 A kind of segmented plasma flare anode

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