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Electrode assembly of low-temperature plasma generator

A low-temperature plasma and electrode assembly technology, applied in the direction of plasma, electrical components, etc., can solve the problems of large space electromagnetic radiation, low energy conversion efficiency, complex processing technology, etc., achieve soft glow discharge, low cost, and suppress electromagnetic radiation effect

Inactive Publication Date: 2013-05-01
南京华科皓纳电气科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, all the above-mentioned electrode structures have many shortcomings such as large electrode volume, complex processing technology, large space electromagnetic radiation, and low energy conversion efficiency, which is not conducive to the general promotion and application in actual products.

Method used

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  • Electrode assembly of low-temperature plasma generator
  • Electrode assembly of low-temperature plasma generator
  • Electrode assembly of low-temperature plasma generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment is a low-temperature plasma generator electrode assembly with a linear structure, and its structure is as follows: figure 1 shown.

[0016] In this embodiment, the positive electrode 1 and the negative electrode 2 are both made of ordinary red copper enameled wire, the outer surface of the electrode is covered with a quartz glass sleeve as the insulating medium layer 3, and the clamping insulating bracket 4 is made of polytetrafluoroethylene molded. The low-temperature plasma generator made with this electrode is used in air sterilization and purification equipment, and the effect of one set is far more than four sets of corona plasma generators from Plasma-air Company of the United States, while the cost is only one-fifth of it.

[0017] This embodiment can be widely applied to air sterilization and purification equipment in hospital operating rooms.

Embodiment 2

[0019] This embodiment is a low-temperature plasma generator electrode assembly with an elliptical structure, and its structure is as follows: figure 2 shown.

[0020] In this embodiment, the positive electrode 5 and the negative electrode 6 are both made of alloy tungsten wire, the outer surface of the electrode insulating medium layer 7 is made by integral sintering of coated alumina ceramics, and the clamping insulating support 8 is made of alumina ceramics by molding and calcining.

[0021] The low-temperature plasma generator manufactured with the electrode of this embodiment is used in a household fresh-keeping degrader, and its plasma volume density basically meets the product function requirements, while the energy consumption is much lower than that of Chinese patent 201210021690.X.

[0022] The electrode of this embodiment can be applied to a fresh-keeping degrader for keeping vegetables and fruits fresh at home and degrading pesticide residues on the surface.

Embodiment 3

[0024] This embodiment is a low-temperature plasma generator electrode assembly with a spiral structure, and its structure is as follows image 3 shown.

[0025] The positive electrode 9 and the negative electrode 10 of this embodiment are made of stainless steel wire, and the insulating medium layer 11 on the outer surface is a high-purity polytetrafluoroethylene sleeve that is sheathed on the periphery of the electrode, and the clamping insulating support 12 is molded and calcined by alumina ceramics. production. The low-temperature plasma generator made of this electrode is used in the sterilization and fresh-keeping system or the disinfection and purification system, which can produce greater use effect with less energy consumption. According to the test, every 1000m 3 The energy consumption of a day is only about 1 kilowatt-hour, and the treated space is almost free of pathogenic bacteria, harmful gases and particles.

[0026] The spiral electrode given in this example ...

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Abstract

The invention relates to an electrode assembly of a low-temperature plasma generator. A positive electrode and A negative electrode of the electrode assembly are conductive metal wires. Insulating materials which resist electrical high voltage and chemical corrosion are coated or sheathed on the external surfaces of the conductive metal wires to form dielectric barrier layers. The same distance is kept between the positive electrode and the negative electrode. The positive electrode and the negative electrode form a positive and negative electrode pair according to a certain geometric shape. The positive and negative electrode pair is clamped and fixed by an insulating support. The positive and negative electrode pair of the electrode assembly is linear, elliptic or spiral. The positive electrode is arranged on the internal side of the electrode pair and the negative electrode is arranged on the external side of the electrode pair. The low-temperature plasma generator which is manufactured by using the electrode assembly has the outstanding advantages that the structural device is simple to manufacture, the spatial electromagnetic radiation is smaller, the energy conversion efficiency is higher, the volume density of plasmas is higher, the development and application field of secondary products is wider and the like.

Description

technical field [0001] The invention relates to a high-frequency and high-voltage electrode, in particular to a special glow discharge electrode assembly for a low-temperature plasma generator. Background technique [0002] It is a well-known technology to generate low-temperature plasma by dielectric barrier method. Its basic principle is to insert an insulating medium between two electrodes, and use it to block the arc discharge between the two electrodes and only make the gas between them generate microfilaments. A similar current breaks down to generate a glow discharge, which fully ionizes the gas between the electrodes and generates a large amount of plasma rich in high-energy particles and active groups. [0003] At present, the structure of discharge electrodes that use the dielectric barrier method to generate low-temperature plasma at home and abroad is basically limited to "point-to-point" electrodes, "line-to-face" electrodes and "face-to-face" electrodes, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/52
Inventor 程方程宇宸郭勇
Owner 南京华科皓纳电气科技有限责任公司
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