High efficient plasma torch with self-cooling anode

被引：0
|
作者：
Ren Q. [1 ]
Lee L. [2 ]
Ding L. [1 ]
Huang J. [2 ]
Tang Z. [1 ]
Zhao H. [1 ,3 ]
机构：
[1] Beijing Institute of Spacecraft Environment Engineering, Beijing
[2] Chengdu Zhenhuo Technology Co., Ltd., Chengdu
[3] College of Mathematics and Physics, Three Gorge University, Yichang
来源：
Gaodianya Jishu/High Voltage Engineering | 2016年 / 42卷 / 03期
关键词：
High efficient plasma torch; Laminar plasma source; Non-water-cooling operation; Self-cooling anode; Steady-state arc discharge;
D O I：
10.13336/j.1003-6520.hve.20160308004
中图分类号：
学科分类号：
摘要：
We developed a plasma torch with self-cooling anode. The anode was cooled by forcing the working medium to flow through the internal of the anode, and the temperature of working gas would simultaneously increase by absorbing heat from the high-temperature anode. The heated gas then flowed into the discharging channel, and a stable plasma jet was obtained. The new plasma torch was tested with total input power at 785 W, under atmospheric pressure without water-cooling, and it could work stably in long-standing period. The length of the jet does not change notably, and the anode keeps a temperature at about 395℃. A traditional torch was also tested for comparison with 815W input power without water-cooling. The temperature of the normal torch increases to 750℃ and shuts down after 5-minute operation in the air. The length of the plasma jet from a normal torch exhibits a quasi-period variation, observed by neck eyes clearly. The experimental results show that the self-cooling anode is an efficient way to achieve a stable plasma jet, and to increase the length, temperature and enthalpy of the jet. Self-cooling anode is a useful technique to improve the efficiency and quality of a plasma torch. © 2016, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：739 / 744
页数：5
相关论文
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