CN112996210B - A multi-arc channel plasma torch - Google Patents
A multi-arc channel plasma torch Download PDFInfo
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- CN112996210B CN112996210B CN202110171723.8A CN202110171723A CN112996210B CN 112996210 B CN112996210 B CN 112996210B CN 202110171723 A CN202110171723 A CN 202110171723A CN 112996210 B CN112996210 B CN 112996210B
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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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Abstract
本发明公开了一种多电弧通道等离子体炬，包括筒状的阳极冷却组件，阳极冷却组件内套接开设多个电弧通道的阳极电极，阳极电极一端支撑连接绝缘管，绝缘管位于阳极冷却组件内，且与阳极冷却组件形成气流通道，绝缘管内壁套接阴极冷却组件，阴极冷却组件端部正对每个阳极电极电弧通道位置连接一个阴极电极，阳极电极连接一个阳极接线柱，多个阴极电极连接阴极接线柱；等离子体炬中设计多个阴极电极，同时相对应的设计有多个电弧通道的阳极电极，形成多电弧通道的结构，在运行过程中，多个电弧通道同时引弧放电产生等离子体弧；多电弧通道的等离子体结构，形成了多个高温区域，从而增大了高温面积。
The invention discloses a multi-arc channel plasma torch, comprising a cylindrical anode cooling component, wherein an anode electrode with multiple arc channels is sleeved in the anode cooling component, one end of the anode electrode is supported and connected to an insulating tube, the insulating tube is located in the anode cooling component and forms an airflow channel with the anode cooling component, the inner wall of the insulating tube is sleeved with a cathode cooling component, the end of the cathode cooling component is connected to a cathode electrode facing each anode electrode arc channel position, the anode electrode is connected to an anode terminal, and multiple cathode electrodes are connected to the cathode terminal; multiple cathode electrodes are designed in the plasma torch, and corresponding anode electrodes with multiple arc channels are designed to form a multi-arc channel structure, and during operation, multiple arc channels simultaneously ignite arc discharge to generate plasma arcs; the plasma structure with multiple arc channels forms multiple high-temperature areas, thereby increasing the high-temperature area.
Description
Technical Field
The invention belongs to the technical field of plasma torches, and particularly relates to a multi-arc-channel plasma torch.
Background
The existing thermal plasma torch generally adopts a mode of generating plasma by striking an arc of a single arc channel, namely, the plasma torch is provided with a cathode and an anode, a certain gap is arranged between the cathode electrode and the anode electrode, the plasma is generated in the single arc channel through striking arc discharge of the cathode and the anode with potential difference, and then the high-density plasma is blown out through external airflow to generate high temperature. The technology is widely applied to the industrial fields of cutting, welding, spraying, metallurgy, materials, chemical industry, waste treatment and the like.
In the practical application of the existing single arc channel plasma torch, the current must be increased in order to realize high power, and under the working condition of high current and high power, the electrode (especially the cathode electrode) is easily ablated, so that the service life of the electrode is shortened, and the plasma torch cannot work normally, therefore, the electrode needs to be replaced frequently, and the electrode is very inconvenient in the use process. Meanwhile, the area of a high-temperature area of plasma generated by the single-arc-channel plasma torch is small, and the simultaneous uniform heating is difficult to realize in certain fields when a large-area high-temperature area is needed.
Disclosure of Invention
The invention aims to provide a multi-arc-channel plasma torch, which solves the problems that electrodes are easy to ablate and need to be frequently replaced and the area of a formed high-temperature area is small in the single-channel thermal plasma torch technology.
The technical scheme includes that the multi-arc channel plasma torch comprises a cylindrical anode cooling assembly, anode electrodes with a plurality of arc channels are sleeved in the anode cooling assembly, one end of each anode electrode is supported and connected with an insulating tube, the insulating tube is positioned in the anode cooling assembly and forms an airflow channel with the anode cooling assembly, the inner wall of the insulating tube is sleeved with a cathode cooling assembly, the end part of the cathode cooling assembly is connected with a cathode electrode opposite to each anode electrode arc channel, the anode electrode is connected with an anode binding post, and the cathode electrodes are connected with a cathode binding post.
The anode cooling assembly comprises an outer cladding pipe, an anode water outlet pipe and an anode water inlet pipe are sequentially and coaxially sleeved in the outer cladding pipe, an anode water inlet channel is formed between the anode water outlet pipe and the anode water inlet pipe, an anode water outlet channel is formed between the outer cladding pipe and the anode water outlet pipe, the anode water inlet channel is communicated with one end, far away from the water inlet, of the anode water outlet channel, an anode electrode with a plurality of arc channels is fixedly connected to the inner wall of one end of the anode water inlet pipe, and an air flow channel is formed between the inner wall of the other end of the anode water inlet pipe and the insulating pipe.
The anode electrode is supported and connected with the insulating tube through a rigid supporting structure provided with a cyclone hole.
The cathode cooling assembly comprises a cathode water inlet pipe nested on the inner wall of the insulating pipe, a cathode water outlet pipe is coaxially sleeved outside the cathode water inlet pipe, a cathode water outlet channel is formed between the cathode water inlet pipe and the cathode water outlet pipe, one end of the cathode water outlet pipe is connected with a cathode electrode opposite to the position of each anode electrode arc channel, and the cathode water inlet pipe is communicated with one end of the cathode water outlet channel close to the cathode electrode.
The cathode electrodes are connected with a multi-joint cathode conductive seat which is connected with a cathode binding post.
The invention has the beneficial effects that:
The plasma torch is provided with a plurality of cathode electrodes, and simultaneously, a plurality of anode electrodes with arc channels are correspondingly arranged, so that a multi-arc channel structure is formed, and in the operation process, the arc channels are used for generating plasma arcs by arc striking and discharging at the same time. Under the condition of unchanged voltage, the structure can consider that a plurality of cathode electrodes are connected in parallel due to the adoption of the multi-joint cathode conductive seat, the current and the power born by a single cathode electrode are equally divided, and the total power of the plasma torch is unchanged. This structure can increase the life of the electrode and reduce the frequency of electrode replacement operations during torch use. Meanwhile, the plasma structure of the multi-arc channel forms a plurality of high temperature areas, thereby increasing the high temperature area.
Drawings
FIG. 1 is a schematic illustration of a partial cross-sectional view of a multiple arc channel plasma torch according to the present invention;
FIG. 2 is a schematic cross-sectional view of a multi-arc channel plasma torch of the present invention;
FIG. 3 is a schematic view of an anode electrode of a multiple arc channel plasma torch of the present invention;
FIG. 4 is a schematic view of an anode electrode and anode assembly of a multiple arc channel plasma torch of the present invention;
FIG. 5 is a schematic view of a cathode electrode and cathode cooling assembly of a multiple arc channel plasma torch according to the present invention;
FIG. 6 is a schematic illustration of a multi-arc channel plasma torch cathode electrode and multi-joint cathode conductive mount connection in accordance with the present invention;
FIG. 7 is a schematic circuit diagram of a multiple arc channel plasma torch of the present invention;
FIG. 8 is a schematic view of the cooling water flow of a multi-arc channel plasma torch of the present invention;
FIG. 9 is a schematic diagram of the flow of the working gas of a multiple arc channel plasma torch according to the present invention;
FIG. 10 is an arc channel inner cross-sectional schematic view of a multi-arc channel plasma torch of the invention;
FIG. 11 is a schematic view of the hot zone of a single arc channel plasma torch configuration;
fig. 12 is a schematic view of the hot zone of a multiple arc channel plasma torch configuration of the present invention.
In the figure, the anode electrode is 1, the anode cooling component is 2, the insulating tube is 3, the cathode cooling component is 4, the cathode electrode is 5, the anode binding post is 6, the cathode binding post is 7, the cathode water inlet pipe is 8, the cathode water outlet pipe is 9, the multi-joint cathode conductive seat is 10, the anode water inlet pipe is 11, the anode water outlet pipe is 12, and the outside cladding pipe is 13.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and detailed description.
The invention relates to a multi-arc channel plasma torch, which comprises a cylindrical anode cooling component 2, wherein anode electrodes 1 provided with a plurality of arc channels are sleeved in the anode cooling component 2, the anode cooling component 2 can cool the anode electrodes 1, one end of each anode electrode 1 is supported and connected with an insulating tube 3 through a rigid supporting structure provided with a spiral hole, the insulating tube 3 can enable gas to circulate in the anode cooling component 2 and form an airflow channel with the anode cooling component 2, the inner wall of the insulating tube 3 is sleeved with a cathode cooling component 4, the cathode cooling component 4 can cool a cathode, the end part of each cathode cooling component 4 is opposite to the position of each anode electrode 1, which is connected with a cathode electrode 5, each cathode electrode 5 and the anode electrode 1 at the corresponding position form plasma in the arc channel, the anode electrode 1 is connected with an anode binding post 6, the anode electrodes 1 are connected with a power supply through the anode binding post 6, the cathode electrodes 5 are connected with the cathode binding post 7, and the cathode electrodes 5 are connected with the power supply through the cathode binding post 7.
As shown in fig. 4, the anode cooling assembly 2 comprises an outer cladding pipe 13, an anode water outlet pipe 12 and an anode water inlet pipe 11 are coaxially sleeved in the outer cladding pipe 13 in sequence, an anode water inlet channel is formed between the anode water outlet pipe 12 and the anode water inlet pipe 11, an anode water outlet channel is formed between the outer cladding pipe 13 and the anode water outlet pipe 12, the anode water inlet channel is communicated with one end, far away from the water inlet, of the anode water outlet channel, an anode electrode 1 with a plurality of arc channels is fixedly connected with the inner wall of one end of the anode water inlet pipe 11, and an air flow channel is formed between the inner wall of the other end of the anode water inlet pipe 11 and the insulating pipe 3.
As shown in fig. 5, the cathode cooling assembly 4 comprises a cathode water inlet pipe 8 nested in the inner wall of the insulating pipe 3, a cathode water outlet pipe 9 is coaxially sleeved outside the cathode water inlet pipe 8, a cathode water outlet channel is formed between the cathode water inlet pipe 8 and the cathode water outlet pipe 9, one end of the cathode water outlet pipe 9 is opposite to the position of each anode electrode 1 arc channel and is connected with one cathode electrode 5, and the cathode water inlet pipe 8 is communicated with one end of the cathode water outlet channel close to the cathode electrode 5.
As shown in fig. 6, the plurality of cathode electrodes 5 are connected to one multi-joint cathode conductive holder 10, and the multi-joint cathode conductive holder 10 is connected to the cathode terminal 7, so that the plurality of cathode electrodes 5 can be connected in parallel, as shown in fig. 7.
The invention relates to a multi-arc channel plasma torch which adopts the following using principle of a controller:
after the cathode binding post 7 and the anode binding post 6 are powered on, the parallel structure formed by the plurality of anode electrodes 1 and the corresponding cathode electrodes 5 is formed, and an equivalent circuit is shown in fig. 7.
After the cathode binding post 7 and the anode binding post 6 are powered on, cold water is continuously introduced into the cathode water inlet pipe 8 (a channel shown as ④), is discharged through a cathode water outlet channel (a ⑤ channel), the cathode electrode 5 is cooled, cold water is introduced into an anode water inlet channel (a ② channel), and is discharged through an anode water outlet channel (a ③ channel), so that the anode electrode 1 is cooled, and the water flow direction is shown as in figure 8.
The air flow direction is shown in fig. 9, the air enters the air flow channel through the air inlet ①, swirl air is generated through the support of the rigid support structure provided with swirl holes, electric arcs are generated after ionization of the anode electrode 1 and the cathode electrode 5, high-energy plasmas are generated through electrolysis after the air passes through the electric arc channel, and plasma arcs are ejected from the multi-electric arc channel, as shown in fig. 10.
Under the condition that the power of the single arc channel plasma torch is P=UI and the structure of the plasma torch is determined, the voltage U is a fixed value, and the current needs to be increased when the plasma torch generates high power, but under the working condition of the high current, a single electrode (particularly a cathode electrode) is easily ablated, so that the service life of the cathode electrode is shortened, the plasma torch cannot work normally, the cathode electrode needs to be replaced frequently, and the plasma torch is inconvenient in the use process. Meanwhile, in the case where the area of the high temperature region of the plasma generated by the single arc channel plasma torch is small, as shown in fig. 11, it is difficult to achieve this in some fields where a large area of the high temperature region is required.
According to the multi-arc-channel plasma torch structure, a plurality of arc channels are added to the anode electrode, and meanwhile, the same number of cathode electrodes are correspondingly added, so that the multi-arc-channel plasma torch structure is coaxially and correspondingly installed one by one. In the case of the multi-arc channel plasma torch size determination of the invention, the voltage U is a fixed value, the input current I passes through the parallel circuit of n arc channels, and the current of a single arc channel isTotal power ofReferring to fig. 7, a schematic circuit diagram is shown. Compared with a single-arc-channel plasma structure, the multi-arc-channel plasma torch structure has the advantages that under the same power requirement, the current and the power born by the cathode electrode of the multi-arc-channel plasma torch structure are equally divided, the service life of the cathode electrode is prolonged, and the problem that the cathode electrode needs to be replaced frequently due to burning loss is solved. Meanwhile, due to the fact that a plurality of arc channels are formed, a plurality of high-temperature areas can be generated, and as shown in fig. 12, the high-temperature areas are increased.
In the manner, the multi-arc-channel plasma torch is provided with the plurality of cathode electrodes, and meanwhile, the anode electrodes of the plurality of arc channels are correspondingly designed, so that a multi-arc-channel structure is formed, and in the operation process, the plurality of arc channels are used for generating plasma arcs by arc striking and discharging at the same time. Under the condition of unchanged voltage, the structure can consider that a plurality of cathode electrodes are connected in parallel due to the adoption of the multi-joint cathode conductive seat, the current and the power born by a single cathode electrode are equally divided, and the total power of the plasma torch is unchanged. This structure can increase the life of the electrode and reduce the frequency of electrode replacement operations during torch use. Meanwhile, the plasma structure of the multi-arc channel forms a plurality of high temperature areas, thereby increasing the high temperature area.
Claims (1)
1. The utility model provides a many electric arc passageway plasma torch which characterized in that includes tubular anode cooling subassembly (2), anode cooling subassembly (2) endotheca sets up anode electrode (1) of a plurality of electric arc passageway, anode electrode (1) one end support is connected insulating tube (3), insulating tube (3) are located anode cooling subassembly (2) and form the air current passageway with anode cooling subassembly (2), cathode cooling subassembly (4) are cup jointed to insulating tube (3) inner wall, cathode cooling subassembly (4) tip just is to every anode electrode (1) electric arc passageway position connection cathode electrode (5), anode electrode (1) connect an anode terminal (6), a plurality of cathode electrode (5) connect cathode terminal (7);
The anode cooling assembly (2) comprises an outer cladding pipe (13), an anode water outlet pipe (12) and an anode water inlet pipe (11) are sequentially and coaxially sleeved in the outer cladding pipe (13), an anode water inlet channel is formed between the anode water outlet pipe (12) and the anode water inlet pipe (11), an anode water outlet channel is formed between the outer cladding pipe (13) and the anode water outlet pipe (12), the anode water inlet channel is communicated with one end, far away from the water inlet, of the anode water outlet channel, an anode electrode (1) with a plurality of arc channels is fixedly connected with the inner wall of one end of the anode water inlet pipe (11), and an air flow channel is formed between the inner wall of the other end of the anode water inlet pipe (11) and the insulating pipe (3);
the cathode electrodes (5) are connected with a multi-joint cathode conductive seat (10), and the multi-joint cathode conductive seat (10) is connected with a cathode binding post (7);
the anode electrode (1) is supported and connected with the insulating tube (3) through a rigid supporting structure provided with a cyclone hole;
The cathode cooling assembly (4) comprises a cathode water inlet pipe (8) nested on the inner wall of the insulating pipe (3), a cathode water outlet pipe (9) is coaxially sleeved outside the cathode water inlet pipe (8), a cathode water outlet channel is formed between the cathode water inlet pipe (8) and the cathode water outlet pipe (9), one end of the cathode water outlet pipe (9) is opposite to the position of each anode electrode (1) where the arc channel is located, one cathode electrode (5) is connected, and the cathode water inlet pipe (8) is communicated with one end of the cathode water outlet channel, which is close to the cathode electrode (5).
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| CN202110171723.8A CN112996210B (en) | 2021-02-08 | 2021-02-08 | A multi-arc channel plasma torch |
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| CN202110171723.8A CN112996210B (en) | 2021-02-08 | 2021-02-08 | A multi-arc channel plasma torch |
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| CN112996210A CN112996210A (en) | 2021-06-18 |
| CN112996210B true CN112996210B (en) | 2025-03-18 |
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| CN114025462B (en) * | 2021-11-23 | 2024-04-19 | 上海翰逸环保科技有限公司 | High-voltage alternating-current arc plasma torch device |
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| KR20110010293A (en) * | 2009-07-24 | 2011-02-01 | 비아이 이엠티 주식회사 | Large Area Plasma Tron Device |
| CN105722295A (en) * | 2016-03-11 | 2016-06-29 | 沈阳工业大学 | Three-cathode plasma pistol |
| CN211240241U (en) * | 2019-12-11 | 2020-08-11 | 西安空天能源动力智能制造研究院有限公司 | High-power plasma torch device based on double-electrode structure |
| CN214338187U (en) * | 2021-02-08 | 2021-10-01 | 重庆新离子环境科技有限公司 | Plasma torch with multiple arc channels |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1012317B (en) * | 1988-12-07 | 1991-04-03 | 冶金工业部钢铁研究总院 | Efficient double are plasma spray gum |
| CN202496127U (en) * | 2012-02-21 | 2012-10-17 | 成都真火科技有限公司 | Multiple-cathode arc plasma generator with anode arranged on central axis |
| CN103260330B (en) * | 2012-02-21 | 2015-11-11 | 成都真火科技有限公司 | A kind of many cathode central anode arc plasma generator |
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- 2021-02-08 CN CN202110171723.8A patent/CN112996210B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110010293A (en) * | 2009-07-24 | 2011-02-01 | 비아이 이엠티 주식회사 | Large Area Plasma Tron Device |
| CN105722295A (en) * | 2016-03-11 | 2016-06-29 | 沈阳工业大学 | Three-cathode plasma pistol |
| CN211240241U (en) * | 2019-12-11 | 2020-08-11 | 西安空天能源动力智能制造研究院有限公司 | High-power plasma torch device based on double-electrode structure |
| CN214338187U (en) * | 2021-02-08 | 2021-10-01 | 重庆新离子环境科技有限公司 | Plasma torch with multiple arc channels |
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