Microwave plasma torch ignition method

A microwave plasma, microwave technology, applied in the direction of plasma, electrical components, etc.

Active Publication Date: 2020-12-18
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a microwave plasma torch ignition method for the above disadvantages, and how to solve the problem of how to avoid the tip discharge structure and the complicated auxiliary action ignition structure, realize automatic ignition, and make the microwave plasma torch reliable and stable, zero issues such as long component life

Method used

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Experimental program
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Embodiment 1

[0021] See attached Figure 1~2 . A microwave plasma torch ignition method, using a microwave plasma torch; the microwave plasma torch includes a microwave generator 1, a microwave delivery device 2, a shielding shell 3 and a discharge tube 4; the discharge tube 4 runs through the shielding shell 3; The shielding shell 3 is provided with a feed port; the feed port is used to receive the microwave input from the microwave generator 1 through the microwave delivery device 2; the discharge tube 4 is used to input the working gas and receive the microwave input from the feed port; The microwave generator 1 has at least a pulse wave mode of operation and a continuous wave mode of operation; comprising the following steps:

[0022] Step S10, inputting working gas into the discharge tube 4;

[0023] Step S20, the microwave generator 1 is turned on, and the working mode is set to the pulse wave working mode, and the microwave generator 1 inputs pulse waves to the working gas in the ...

Embodiment 2

[0027] See attached Figure 1~2 . A microwave plasma torch ignition method, using a microwave plasma torch; the microwave plasma torch includes a microwave generator 1, a microwave delivery device 2, a shielding shell 3 and a discharge tube 4; the discharge tube 4 runs through the shielding shell 3; The shielding shell 3 is provided with a feed port; the feed port is used to receive the microwave input from the microwave generator 1 through the microwave delivery device 2; the discharge tube 4 is used to input the working gas and receive the microwave input from the feed port; The microwave generator 1 has at least a pulse wave mode of operation and a continuous wave mode of operation; comprising the following steps:

[0028] Step S10, inputting working gas into the discharge tube 4;

[0029] Step S20, the microwave generator 1 is turned on, and the working mode is set to the pulse wave working mode, and the microwave generator 1 inputs pulse waves to the working gas in the ...

Embodiment 3

[0034] See attached Figure 1~2 . A microwave plasma torch ignition method, using a microwave plasma torch; the microwave plasma torch includes a microwave generator 1, a microwave delivery device 2, a shielding shell 3 and a discharge tube 4; the discharge tube 4 runs through the shielding shell 3; The shielding shell 3 is provided with a feed port; the feed port is used to receive the microwave input from the microwave generator 1 through the microwave delivery device 2; the discharge tube 4 is used to input the working gas and receive the microwave input from the feed port; The microwave generator 1 has at least a pulse wave mode of operation and a continuous wave mode of operation; comprising the following steps:

[0035] Step S10, inputting working gas into the discharge tube 4;

[0036] Step S20, the microwave generator 1 is turned on, and the working mode is set to the pulse wave working mode, and the microwave generator 1 inputs pulse waves to the working gas in the ...

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PUM

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Abstract

The invention discloses a microwave plasma torch ignition method, which belongs to the technical field of microwave application. Amicrowave plasma torch is adopted to input working gas into the discharge tube; the microwave generator is started, the working mode is set to be a pulse wave working mode, and the microwave generator inputs pulse waves into the working gas in the discharge tube throughthe microwave conveying device; whether the working gas in the discharge tube generates plasma or not is determined; working gas in the discharge tube generates plasmas, the microwave generator switches a pulse wave working mode into a continuous wave working mode, and the microwave generator inputs continuous waves into the working gas in the discharge tube through the microwave conveying device. According to the microwave plasma torch ignition method, point discharge structures such as a probe are not needed, a complex probe action mechanism is omitted, automatic ignition can be achieved, and the microwave plasma torch ignition method has the advantages of being stable, reliable, long in service life of parts and the like.

Description

technical field [0001] The invention belongs to the field of microwave application technology, and in particular relates to a microwave plasma torch ignition method. Background technique [0002] The plasma is generated in the discharge tube of the microwave plasma torch, and the electric field strength of the generating device is required to reach the breakdown field strength of the working gas in order to ionize the working gas and generate active plasma components. The electric field strength required to excite the plasma at atmospheric pressure is often much higher than the electric field strength required to maintain the plasma, especially in the microwave plasma discharge, it is necessary to apply a high-intensity local electric field to excite the working gas discharge. For continuous wave microwave plasma discharge, it only needs to be ignited once and then removed from the excitation device to maintain the plasma discharge process through continuous microwave input ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/30
CPCH05H1/30
Inventor 黄卡玛杨阳朱铧丞
Owner SICHUAN UNIV
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