CN110662338B - Arc channel structure of long arc plasma beam generator - Google Patents
Arc channel structure of long arc plasma beam generator Download PDFInfo
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- CN110662338B CN110662338B CN201910924500.7A CN201910924500A CN110662338B CN 110662338 B CN110662338 B CN 110662338B CN 201910924500 A CN201910924500 A CN 201910924500A CN 110662338 B CN110662338 B CN 110662338B
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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
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
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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
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/28—Cooling arrangements
Abstract
The invention discloses an arc channel structure of a long-arc plasma beam generator, which comprises a main body, wherein an arc channel extending along the axial direction of the main body is arranged in the main body, the main body is composed of a plurality of groups of heat-resistant insulator parts, electric and heat conducting parts and gradient body parts which are manufactured by an additive manufacturing technology, the heat-resistant insulator parts and the electric and heat conducting parts are connected through the gradient body parts, the heat-resistant insulator parts are made of heat-resistant insulating materials, the electric and heat conducting parts are made of electric and heat conducting materials, the gradient body parts are formed by mixing the heat-resistant insulating materials and the electric and heat conducting materials, and the content of the heat-resistant insulating materials in the gradient body parts is gradually reduced and the content of the electric and heat conducting materials is gradually increased in the process that one end of the gradient body part, which is close to the heat-resistant insulator parts, extends to the electric and heat conducting parts. The main body provided by the invention has a flat, reliable and perfect arc channel.
Description
Technical Field
The invention belongs to the technical field of plasma beam generators, and particularly relates to an arc channel structure of a long-arc plasma beam generator.
Background
The long plasma beam of DC arc laminar flow is a basic heat source widely used in various industrial fields. The plasma beam can generate a stable and controllable long-beam high-temperature heat source, and the temperature can be adjusted between 50000 ℃ and 2000 ℃. The plasma beam generator manufactured by the traditional method has numerous internal arc channel parts, and the requirements of insulation, water sealing, high temperature resistance and the like cause uneven inner wall of the arc channel, so that the generator has small power, unstable work and short service life, and simultaneously has complicated structure and high cost.
Disclosure of Invention
The invention aims to: the defects in the prior art are overcome, and the arc channel structure of the long-arc plasma beam generator is provided.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a long arc plasma beam generator arc passageway structure, includes the main part, have the arc passageway along its axial extension in the main part, the main part comprises heat-resisting insulator portion, electrically and thermally conductive body portion and the gradual change somatic part that the material increase manufacturing technique was made through the multiunit, pass through between heat-resisting insulator portion and the electrically and thermally conductive body portion the gradual change somatic part is connected, heat-resisting insulator portion is made by heat-resisting insulating material, the electrically and thermally conductive body portion is made by electrically and thermally conductive material, the gradual change somatic part is formed by mixing heat-resisting insulating material and electrically and thermally conductive material, the gradual change somatic part is close to heat-resisting insulator portion's one end to the in-process that the electrically and thermally conductive body portion extends the content of heat-resisting insulating material in the gradual change somatic part reduces and electrically and thermally conductive material's content increases gradually.
Further, the content of the heat-resistant insulating material in the tapered body part is reduced from 100% to 0% and the content of the electrically and thermally conductive material is increased from 0% to 100% during the process that the tapered body part extends towards the electrically and thermally conductive body part from the end close to the heat-resistant insulating body part.
Further, the arc passage is provided in plurality, and the plurality of arc passages extend in the axial direction of the main body and are parallel to each other.
Further, the circumferential surface of the main body is provided with a cooling ring groove.
Further, the heat-resistant insulating material is aluminum oxide, boron nitride, silicon nitride or aluminum nitride.
Further, the conductive and heat-conductive material is copper, tungsten or tungsten-copper alloy.
Further, the main body has a plurality of heat-resistant insulator portions, electrically and thermally conductive portions, and transition portions, the plurality of heat-resistant insulator portions and the plurality of electrically and thermally conductive portions being arranged alternately and continuously, and any adjacent heat-resistant insulator portions and electrically and thermally conductive portions being connected by the transition portions.
Further, the inner diameter of the arc channel ranges from 1 mm to 200 mm.
Furthermore, the invention also provides a long arc plasma beam generator which comprises an anode body, a cathode body and a main body, wherein two ends of the main body are respectively connected with the anode body and the cathode body.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the invention, the main body comprising the heat-resistant insulator part, the electric and heat conducting body part and the gradual change body part is prepared by the heat-resistant insulating material and the electric and heat conducting material through the additive manufacturing technology, and the arc channel is arranged in the main body.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Reference numerals: 100-body, 110-arc channel, 120-heat-resistant insulator part, 130-electric-heat-conducting body part, 140-gradient body part, 150-cooling ring groove, 210-anode body, 220-cathode body.
Detailed Description
Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The present invention provides a plasma beam generator manufactured by 3D printing, as shown in fig. 1, comprising a main body 100 having an arc channel 110 extending along an axis thereof in the main body 100, wherein an inner diameter of the arc channel 110 ranges from 1 to 200 mm, the main body 100 is formed by a heat-resistant insulator part 120, an electrically and thermally conductive part 130 and a transition part 140 manufactured by an additive manufacturing technique, and thus the arc channel in the main body 100 has flat, reliable and perfect characteristics. The heat-resistant insulator portion 120 and the electrical and thermal conductive portion 130 are connected by the transition portion 140, the heat-resistant insulator portion 120 and the electrical and thermal conductive portion 130 may be provided in plural, the plural heat-resistant insulator portions 120 and the electrical and thermal conductive portion 130 are continuously and alternately provided along the axial direction of the main body 100, correspondingly, any adjacent heat-resistant insulator portion 120 and the electrical and thermal conductive portion 130 are connected by the transition portion 140, the circumferential surface of the main body 100 is further provided with a plurality of annular cooling ring grooves 150, and cooling water is surrounded in the cooling ring grooves 150, so that the present invention has a better cooling effect.
The heat-resistant insulator portion 120 is made of a heat-resistant insulating material, specifically, a ceramic material such as aluminum oxide, boron nitride, silicon nitride, aluminum oxide, and the like may be used as the heat-resistant insulating material, the thermoconductive portion 130 is made of an electrically and thermally conductive material, a metal material such as copper, tungsten, and tungsten-copper alloy, and the transition body portion 140 is made of a mixture of a heat-resistant insulating material and an electrically and thermally conductive material in an additive manufacturing technique, and the transition body portion 140 is made of a mixture of a heat-resistant insulating material and an electrically and thermally conductive material during the extension of the transition body portion 140 toward the heat-conductive portion 130 near the end of the heat-resistant insulator portion 120, specifically, since the transition body portion 140 is made of a mixture of a heat-resistant insulating material and an electrically and thermally conductive material only, the transition body portion 140 decreases from 100% to 0% during the extension of the transition body portion 140 toward the heat-conductive portion 130 near the end of the heat-resistant insulator portion 120, and increases from 0% to 100% and the transition body portion 140 increases from 0% to 100% accordingly, when there are a plurality of body portions 140, the adjacent two transition body portions 140 are arranged in parallel, and the transition body portions are easily manufactured by the present invention, and the present invention can simplify the manufacture of the multiple parallel manufacturing of the transition body portions 110 by the present invention because the multiple arc-resistant insulating material and the present invention because the multiple transition body portions 110 can be easily manufactured by the electrical arc-resistant insulating material.
The invention also provides a long arc plasma beam generator, which comprises an anode body 210, a cathode body 220 and a main body 100, wherein two ends of the main body 100 are respectively connected with the anode body 210 and the cathode body 220.
Claims (8)
1. An electric arc channel structure of a long arc plasma beam generator is characterized in that: the electric arc furnace comprises a main body, wherein an arc channel extending along the axial direction of the main body is arranged in the main body, the main body is composed of a plurality of groups of heat-resistant insulator parts, electric and heat conducting body parts and gradient body parts which are manufactured by an additive manufacturing technology, the heat-resistant insulator parts and the electric and heat conducting body parts are connected through the gradient body parts, the heat-resistant insulator parts are made of heat-resistant insulating materials, the electric and heat conducting body parts are made of electric and heat conducting materials, the gradient body parts are made of heat-resistant insulating materials and electric and heat conducting materials which are mixed, and the content of the heat-resistant insulating materials in the gradient body parts is gradually reduced and the content of the electric and heat conducting materials is gradually increased in the process that one end of the gradient body part, close to the heat-resistant insulator parts, extends to the electric and heat conducting body parts;
the content of the heat-resistant insulating material in the gradual change body part is reduced from 100% to 0% in the process that the gradual change body part extends towards the electric conduction heat conduction body part from one end close to the heat-resistant insulating body part, and the content of the electric conduction heat conduction material is increased from 0% to 100%.
2. The long arc plasma beam generator arc channel structure of claim 1, wherein: the arc channel has a plurality of, and a plurality of the arc channel all extends along the axial of main part and parallel each other.
3. A long arc plasma beam generator arc path structure as claimed in claim 1, wherein: the circumferential surface of the main body is provided with a cooling ring groove.
4. The long arc plasma beam generator arc channel structure of claim 1, wherein: the heat-resistant insulating material is aluminum oxide, boron nitride, silicon nitride or aluminum nitride.
5. The long arc plasma beam generator arc channel structure of claim 1, wherein: the conductive and heat-conducting material is copper, tungsten or tungsten-copper alloy.
6. The long arc plasma beam generator arc channel structure of claim 1, wherein: the main body is provided with a plurality of heat-resistant insulator parts, electric and heat conducting body parts and gradient body parts, the heat-resistant insulator parts and the electric and heat conducting body parts are continuously and alternately arranged, and any adjacent heat-resistant insulator parts and electric and heat conducting parts are connected through the gradient body parts.
7. A long arc plasma beam generator arc path structure as claimed in claim 1, wherein: the inner diameter of the arc channel ranges from 1 mm to 200 mm.
8. A long arc plasma beam generator comprising an anode body, a cathode body and the body as claimed in any one of claims 1 to 7, both ends of the body being connected to the anode body and the cathode body, respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910924500.7A CN110662338B (en) | 2019-09-27 | 2019-09-27 | Arc channel structure of long arc plasma beam generator |
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| CN201910924500.7A CN110662338B (en) | 2019-09-27 | 2019-09-27 | Arc channel structure of long arc plasma beam generator |
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| CN110662338A CN110662338A (en) | 2020-01-07 |
| CN110662338B true CN110662338B (en) | 2022-12-02 |
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| CN111372332B (en) * | 2020-03-05 | 2022-04-29 | 中国空气动力研究与发展中心超高速空气动力研究所 | Air-cooled ceramic heat-insulating electric arc heater |
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| CN101588674A (en) * | 2008-05-22 | 2009-11-25 | 中国航天空气动力技术研究院 | Method for designing high-enthalpy arc heater with fixed arc length |
| EP2953216B1 (en) * | 2014-06-03 | 2019-07-31 | PHOENIX CONTACT GmbH & Co. KG | Spark gap with a cooling and/or damping device |
| CN204466028U (en) * | 2014-06-19 | 2015-07-08 | 成都真火科技有限公司 | A kind of arc channel cooling structure |
| KR20180061967A (en) * | 2016-11-30 | 2018-06-08 | 한국수력원자력 주식회사 | Multi-Electrode Plasma Torch |
| CN106783608B (en) * | 2016-12-22 | 2019-10-25 | 株洲中车时代电气股份有限公司 | A kind of terminal structure and preparation method thereof and power semiconductor |
| CN107124814A (en) * | 2017-06-20 | 2017-09-01 | 四川大学 | A kind of many negative electrode laminar flow plasma powder spheroidization devices |
| CN206921989U (en) * | 2017-06-30 | 2018-01-23 | 成都玖信科技有限公司 | A kind of transition connector of glass insulator and microstrip line |
| 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 |
| CN110224240A (en) * | 2019-04-25 | 2019-09-10 | 吉林省中赢高科技有限公司 | A kind of novel aluminum line terminals |
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