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Multi-cavity plasma generator anode

A plasma generator and multi-chamber technology, applied in the direction of plasma, can solve the problems of low output power and short service life, and achieve the effect of stable combustion

Active Publication Date: 2012-11-28
WUHAN TIANHE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a multi-chamber plasma generator anode, which has the characteristics of long life and high stability, so as to solve the problems of short service life and low output power of existing plasma generators

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Embodiment Construction

[0024] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0025] Such as figure 1 as shown, figure 1It is a structural diagram of a preferred embodiment of the multi-chamber plasma generator anode of the present invention. The anode of the multi-chamber plasma generator consists of a compression chamber L2, a combustion stabilization chamber L3, a diversion chamber L4, an acceleration chamber L5 and a water cooling system L1. The compression chamber L2 is located at the rear end of the anode, with a diameter of 20-60mm, a length of 20-50mm, and a thickness of 5-20mm, which mainly compresses the plasma generated by the cathode; the stable combustion chamber L3 is connected to the compression chamber L2, It is a parabolic cavity with a diameter of 20-100mm, a length of 30-100mm, and a thickness of 5-20m...

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Abstract

The invention provides a multi-cavity plasma generator anode, which comprises a compression cavity, a stable combustion cavity, a conduction flow cavity and an accelerating cavity, which are connected in succession; the compression cavity is used to compress plasmas generated by a cathode; the stable combustion cavity can meet the requirement of plasma expansion; the conduction flow cavity provides a good electrically conductive path for conduction electrons; the accelerating cavity is a double-parabola structure formed by an upper-open parabola and a lower-open parabola; and the compression section is used to compress plasmas and improve plasma density, and the accelerating section is used to reduce the resistance of plasmas jetting form the leading end of the anode and increase plasma jetting velocity. The multi-cavity plasma generator anode provided by the invention is different from the traditional plasma generator anode, which adopts a first-compression-and-then-expansion type nozzle. In the invention, a unique multi-cavity anode construction is designed according to the expansion property of plasmas, and therefore the shortcoming of the traditional anode that the anode life is shortened due to too fast ablation rate resulting from the overlap of a conducting zone and an electric arc combustion zone is overcome.

Description

technical field [0001] The invention relates to the field of plasma application, in particular to a multi-chamber plasma generator anode. Background technique [0002] At present, arc plasma generators, which are widely used in science and technology and industry, are also called arc plasma torches, or plasma spray guns, and sometimes arc heaters. It is a discharge device capable of generating directional plasma jets, and has been widely used in the fields of plasma chemical industry, metallurgy, spray coating, spray welding, mechanical processing and aerothermal simulation experiments. The ignition and stable combustion of large industrial pulverized coal boilers are traditionally achieved by burning rare fuels such as heavy oil or natural gas. In recent years, with the worldwide energy shortage and the development of plasma technology, plasma ignition of boilers has become a domestic and foreign The latest technology has greatly reduced the consumption of heavy oil (natur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/34
Inventor 于宝成张志宏王华彬
Owner WUHAN TIANHE TECH
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