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核聚变与等离子体物理 ›› 2007, Vol. 27 ›› Issue (3): 247-250.

• 研究报告 • 上一篇    下一篇

基于相似理论的等离子体炬电热特性研究

程昌明,唐德礼,兰 伟   

  1. (核工业西南物理研究院,成都 610041)
  • 收稿日期:2006-08-28 修回日期:2007-01-05 出版日期:2007-09-15 发布日期:2011-08-15
  • 作者简介:程昌明(1971-),男,四川简阳人,硕士研究生,高级工程师,毕业于成都科学技术大学,现从事低温等离子体应用研究。

Research on electric and thermal characteristics of plasma torch based on similarity theory

CHENG Chang-ming, TANG De-li, LAN Wei   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Received:2006-08-28 Revised:2007-01-05 Online:2007-09-15 Published:2011-08-15

摘要:

介绍了自行研制的直流非转移弧等离子体炬的结构和工作原理。运用相似理论,研究了该等离子体炬的电热特性与运行参数,比如气体流量、弧功率的关系,并将计算值与实验结果进行了比较。结果表明,计算值与实验结果吻合较好,可以利用获得的公式来对炬进行结构改进和参数优化。

关键词: 等离子体炬, 相似理论, 伏安特性, 热效率

Abstract:

Configuration and working principle of a DC non-transferred plasma torch have been introduced. Based on similarity theory, connections between the electric-thermal characteristics and operational parameter such as flowing gas rate and arc power have been investigated. Calculation and experiment are compared. The results indicate that the calculation results are in agreement with experimental ones. The formulas can be used for plasma torch improvement and optimization.

Key words: Plasma torch, Similarity theory, Current-voltage characteristics, Thermal efficiency

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