CN112804804A - Constant electromagnetic field constraint plasma arc generating device - Google Patents
Constant electromagnetic field constraint plasma arc generating device Download PDFInfo
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- CN112804804A CN112804804A CN202011499137.8A CN202011499137A CN112804804A CN 112804804 A CN112804804 A CN 112804804A CN 202011499137 A CN202011499137 A CN 202011499137A CN 112804804 A CN112804804 A CN 112804804A
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- plasma
- generator
- electromagnetic field
- liquid nitrogen
- generating device
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- 230000005672 electromagnetic field Effects 0.000 title claims abstract description 22
- 230000002035 prolonged effect Effects 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 48
- 239000007788 liquid Substances 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000007771 core particle Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Classifications
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- 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
- H05H1/02—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a constant electromagnetic field constraint plasma arc generating device, which generates plasma through the action of a cathode and an anode, the plasma generates regular motion in a generator under the action of a constant circular magnetic field and is compressed to form a plasma beam, and the formed plasma beam is further cooled and compressed to form an ultra-energy plasma beam at an anode nozzle and is finally ejected. The plasma beam generated by the device has larger energy and improved efficiency through two-time compression, and the continuous impact of the plasma on the inner wall of the generator is avoided under the condition of the constraint of the constant electromagnetic field, so that the service life of the generator is prolonged.
Description
Technical Field
The invention relates to the field of plasma generating devices, in particular to a plasma arc generating device constrained by a constant electromagnetic field.
Background
By plasma is meant an uncharged ionised species having ions, electrons and core particles. The plasma includes: almost the same number of free electrons and anode electrons. In a plasma, the particles therein have been ionized from the core particles. Thus, when a plasma contains a large number of ions and electrons, it is the best conductor of electricity and it is influenced by the magnetic field, and at high temperatures, the electrons are separated from the core particles.
Plasma arcs are arcs that utilize a plasma generating device to compress a free arc between a cathode (e.g., a tungsten electrode) and an anode into a high temperature, high ionization degree, and high energy density arc. Plasma arcs are currently widely used in welding, spraying, build-up welding and cutting.
The electromagnetic confinement of the plasma is an efficient plasma auxiliary treatment process, the plasma generated by the generating device is further compressed by utilizing the action of a constant electromagnetic field, the diameter of the generated plasma beam is further reduced, the energy of the generated plasma arc is further increased, the efficiency of the plasma arc generating device is greatly improved, and the electromagnetic confinement plasma auxiliary treatment process has profound significance for improving the arc temperature.
Plasma that traditional plasma generating device produced is because having the conductivity, event itself can produce certain magnetic field, rotary motion can be done because the effect of magnetic field in generating device to the plasma of high-speed motion, rotary motion can make plasma collide the generator inner wall to the rotary motion of plasma, because momentum conservation law, can cause the energy of the plasma arc of production to reduce, in the long run, plasma generating device's inner wall also can progressively damage, and then need periodic maintenance or replacement, and the production cost is improved, influence production efficiency.
The nozzle of the traditional plasma arc generally adopts a water-cooling mode, high-temperature and high-speed plasma is cooled at the nozzle, the plasma is further compressed, and the energy of the generated arc is higher.
Disclosure of Invention
The plasma generator aims to solve the problems that the energy of compressed plasma is reduced and the plasma which rotates is not compressed tightly because the plasma generated in the existing plasma generating device impacts the inner wall of the generator. The invention designs a plasma arc generating device constrained by a constant electromagnetic field, which consists of a plasma generating device, an external electromagnet and a liquid nitrogen cooling nozzle, wherein plasma beams generated by the plasma arc generating device are constrained and generate regular motion in the generator under the action of the magnetic field of the external electromagnet, and then are further compressed into the plasma beams through the liquid nitrogen cooling nozzle to be sprayed out. The impact of the rotating plasma in the conventional generating device on the inner wall of the generator is avoided, the service life of the plasma arc generating device is effectively prolonged, the energy of the plasma beam is improved, the production efficiency is improved, and the cost is saved.
The technical scheme of the invention is realized as follows:
a constant electromagnetic field confined plasma arc generating device comprising:
(1) a plasma generating section;
(2) an additional electromagnet part;
(3) the liquid nitrogen cools the nozzle portion.
A plasma arc generator with constant electromagnetic field constraint is composed of a plasma generator for generating plasma, an external electromagnetic field for constraining the motion track of generated plasma, and a liquid nitrogen cooling nozzle with cooling function. A large amount of plasma generated by the plasma generating device is constrained in motion trail and compressed to form high-energy plasma beams after passing through a constant magnetic field generated by an external electromagnet, the plasma beams are further cooled by liquid nitrogen when passing through a liquid nitrogen nozzle, and the plasma beams are further compressed and then ejected to generate high-energy and ultrahigh-temperature plasma arcs. The external electromagnet is positioned at the lower part of the plasma arc generating device generator, and the liquid nitrogen cooling nozzle is positioned at the tail end of the whole device.
In the plasma generating device, free arcs between a cathode (such as a tungsten electrode) and an anode generate a large amount of plasma by compressing and ionizing sucked air (mainly oxygen), and the generated plasma freely moves into a compression cavity under the action of an electric field force.
The external constant electromagnetic field is circularly enclosed outside the generator, and the two ends of the N pole and the S pole of the external constant electromagnetic field are respectively connected with external high voltage to generate a magnetic field with enough magnitude, so that the magnetic field lines generated by the N pole and the S pole are ensured to be converged to the circle center.
The liquid nitrogen cooling nozzle mainly comprises an external liquid nitrogen cooling circulation system and an internal nozzle, the cooling circulation system is filled with liquid ammonia, the sealing and heat-insulating effects are good, the liquid nitrogen cooling nozzle is guaranteed to have a good cooling effect, leakage of the liquid nitrogen is prevented, and personal injury is caused.
The invention has the beneficial effects that:
the plasma arc generated by the device has the advantages of heat concentration, good controllability, stable arc and the like. Can be widely applied to welding, spraying, surfacing and cutting. The plasma generating device constrained by the constant electromagnetic field can ensure that the generated plasma beam has higher temperature and stronger energy. The production efficiency is improved, continuous impact of plasma on the inner wall of the generator is avoided under the constraint of a constant electromagnetic field, and the service life of the generator is prolonged. The nozzle of the liquid nitrogen cooling system can further compress the generated plasma beam, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings required for the technical examples will be briefly described below.
FIG. 1 is a simplified diagram of a constant electromagnetic field confining plasma arc generating device.
Fig. 2 is a diagram showing the effect of the magnetic field generated by the electromagnet.
FIG. 3 is a simplified schematic of a liquid nitrogen cooling system.
In the attached figure 1, a cathode head; 2. a plasma torch; 3. an anode head; 4. transferring an arc; 5. an electromagnet; 6. an air inlet; 7. an anode nozzle; 8. an external electric field anode; 9. an external electric field cathode; 10. a nozzle; 11. and a liquid nitrogen cooling circulation system.
Detailed Description
The device of the invention is shown in figure 1, and the whole constant electromagnetic field constraint plasma arc generating device comprises a cathode head 1, a plasma torch 2, an anode head 3, a transfer arc 4, an electromagnet 5, an air inlet 6, an anode nozzle 7 and a liquid nitrogen cooling circulation system nozzle.
The working principle of the plasma generating device is that a plasma arc with high energy density is obtained by taking a transfer arc 4 as a heat source, an anode nozzle 7 and a cathode plasma torch 2 are respectively connected to a positive electrode and a negative electrode, gas passes through the plasma torch 6 during working, the gas is ionized to generate plasma through the compression effect, the generated plasma moves forwards in the plasma torch 6 to a magnetic field generated by an electromagnet 5, the plasma is constrained to move and converged to the central position of a magnetic field line generated by the circular electromagnet 5 under the action of a constant electromagnetic field generated by the electromagnet 5, the plasma is compressed into a plasma beam under the action of the constant magnetic field and then enters the anode nozzle 7, and the plasma beam is further compressed by a liquid nitrogen circulating system with extremely low temperature to form the plasma beam with extremely high energy and finally ejected in the form of the plasma stream.
The N pole and the S pole of the electromagnet are respectively connected with an external electric field anode 8 and an external electric field cathode 9 through leads, and the electromagnet is enabled to generate a larger constant electromagnetic field through connection with external high voltage, so that the plasma is enabled to move in a relatively standard manner under the action of the magnetic field force, and energy loss and consumption caused by collision with the inner wall of the generator are avoided.
The liquid nitrogen circulation system wraps the outside of the anode nozzle and adopts a material with excellent sealing performance, so that personal injury caused by leakage of liquid nitrogen is prevented.
When the plasma arc generating device is restricted by the constant electromagnetic field to work, plasma is compressed into plasma beams with higher energy under the action of the strong constant magnetic field generated by the electromagnet 5, then is further compressed through the anode nozzle 11 of the liquid nitrogen cooling system, and then is sprayed to form the plasma beams with higher energy. The problem of traditional plasma generating device because plasma is rotary motion collision generator inner wall under the effect of self electric field power, causes the loss of energy and inner wall to damage can be solved, make the plasma beam that the device produced have higher energy through twice compression, effectively promoted plasma generating device's life-span, practiced thrift the cost, improved the efficiency of welding, spraying, build-up welding and cutting process.
Claims (4)
1. A plasma arc generating device constrained by a constant electromagnetic field comprises a plasma generator, an electromagnet device and a liquid nitrogen circulating cooling system, wherein the plasma generator is installed at the central part of the whole device, the electromagnet device is installed outside a transferred arc of the generator, and the liquid nitrogen circulating system is installed at the bottommost end of the whole device and outside an anode nozzle.
2. The apparatus of claim 1, wherein the air is compressed inside the apparatus by the interaction of the anode and the cathode to generate plasma, and the generated plasma is compressed and moves to the nozzle area of the anode due to the action of the external constant electromagnetic field.
3. The liquid nitrogen cooling circulation system according to claim 1, wherein liquid nitrogen is used for cooling and sealing instead of a water circulation cooling system widely used in the market. When the compressed plasma enters the area of the anode nozzle, the liquid nitrogen cooling system further cools and compresses the compressed plasma to form a plasma beam with extremely high energy, and then the plasma beam is ejected at high speed.
4. The plasma generated by the device cannot collide with the inner wall of the generator under the constraint of the constant electromagnetic field, so that the energy loss is avoided, and the service life of the generator is prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499137.8A CN112804804A (en) | 2020-12-17 | 2020-12-17 | Constant electromagnetic field constraint plasma arc generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499137.8A CN112804804A (en) | 2020-12-17 | 2020-12-17 | Constant electromagnetic field constraint plasma arc generating device |
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| Publication Number | Publication Date |
|---|---|
| CN112804804A true CN112804804A (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011499137.8A Withdrawn CN112804804A (en) | 2020-12-17 | 2020-12-17 | Constant electromagnetic field constraint plasma arc generating device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06267903A (en) * | 1993-01-12 | 1994-09-22 | Tokyo Electron Ltd | Plasma device |
| US5896407A (en) * | 1996-07-23 | 1999-04-20 | Japan Atomic Energy Research Institute | High-efficiency plasma confining method, laser oscillating method and laser oscillator |
| CN200980199Y (en) * | 2006-12-08 | 2007-11-21 | 航天空气动力技术研究院 | An industrial plasma spray gun |
| US20100300335A1 (en) * | 2007-12-27 | 2010-12-02 | Beijing GuangYao Electricity Equipment Co. Ltd | AC Plasma Ejection Gun, the Method for Supplying Power to it and Pulverized Coal Burner |
| US20110095198A1 (en) * | 2008-06-13 | 2011-04-28 | Olivier Smiljanic | System and method for fabricating macroscopic objects, and nano-assembled objects obtained therewith |
| CN207746531U (en) * | 2017-11-21 | 2018-08-21 | 成都纵远机械设备有限公司 | A kind of plastic cutting burner |
| CN109366021A (en) * | 2018-09-12 | 2019-02-22 | 费杰福 | A kind of laminar flow plasma water cutting gun |
-
2020
- 2020-12-17 CN CN202011499137.8A patent/CN112804804A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06267903A (en) * | 1993-01-12 | 1994-09-22 | Tokyo Electron Ltd | Plasma device |
| US5896407A (en) * | 1996-07-23 | 1999-04-20 | Japan Atomic Energy Research Institute | High-efficiency plasma confining method, laser oscillating method and laser oscillator |
| CN200980199Y (en) * | 2006-12-08 | 2007-11-21 | 航天空气动力技术研究院 | An industrial plasma spray gun |
| US20100300335A1 (en) * | 2007-12-27 | 2010-12-02 | Beijing GuangYao Electricity Equipment Co. Ltd | AC Plasma Ejection Gun, the Method for Supplying Power to it and Pulverized Coal Burner |
| US20110095198A1 (en) * | 2008-06-13 | 2011-04-28 | Olivier Smiljanic | System and method for fabricating macroscopic objects, and nano-assembled objects obtained therewith |
| CN207746531U (en) * | 2017-11-21 | 2018-08-21 | 成都纵远机械设备有限公司 | A kind of plastic cutting burner |
| CN109366021A (en) * | 2018-09-12 | 2019-02-22 | 费杰福 | A kind of laminar flow plasma water cutting gun |
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Application publication date: 20210514 |