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Utilizing high voltage to generate gas plasma discharge basic unit and reactor

A basic unit and reactor technology, applied in the field of using high voltage to generate gas plasma discharge basic unit and reactor, can solve problems such as use restrictions

Inactive Publication Date: 2015-08-12
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even if adding a dielectric barrier between the two electrodes will improve the uneven discharge, this form of plasma reactor has limitations in its use.

Method used

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  • Utilizing high voltage to generate gas plasma discharge basic unit and reactor
  • Utilizing high voltage to generate gas plasma discharge basic unit and reactor
  • Utilizing high voltage to generate gas plasma discharge basic unit and reactor

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiments of the present invention may use Figure 10-11 The schematic diagram of the structure is shown. There are more than 2 basic units in the sub-volume plasma reactor. The capacitors and electrodes 1 and 2 are connected with metal wires 1,2,3. There is a certain distance between electrodes 1 and 2 to form a gas discharge space. The basic units are independent of each other. The basic units are connected in parallel with each other, and are connected by parallel wires 1 and 2. A plurality of basic units connected in parallel constitute a volumetric plasma reactor. The parallel wires 1 and 2 of the split-volume plasma reactor are connected with the high-voltage power wires 1 and 2 and the high-voltage power supply. The gas passes through the discharge space of the split-volume plasma reactor, and various chemical reactions occur in the downstream of the discharge space and the gas flow direction.

[0031] Figure 10 Example of use of volumetric plasma react...

Embodiment 2

[0034] Figure 12 The schematic structural diagram shown is another example of implementing the embodiment of the present invention. There are more than 2 basic units in the sub-volume plasma reactor. The capacitors and electrodes 1 and 2 are connected with metal wires 1,2,3. A certain distance between electrodes 1 and 2 forms a gas discharge space 1 . One electrode is shared between the basic units to form another gas discharge space, such as Figure 11 Electrode 2 and electrode 3 in form discharge space 2 . The basic units are connected in parallel with each other, and are connected by parallel wires 1 and 2. A plurality of basic units connected in parallel constitute a volumetric plasma reactor. The parallel wires 1 and 2 of the split-volume plasma reactor are connected with the high-voltage power wires 1 and 2 and the high-voltage power supply. The gas passes through the discharge space of the split-volume plasma reactor, and various chemical reactions occur in the d...

Embodiment 3

[0038] The plasma reactor of the present invention can control the discharge in the discharge space through the capacitor. When the discharge in the discharge space does not achieve the effect of uniform discharge or the electrode material has an adverse effect on the chemical reaction in the discharge space, an insulating film or plate can be covered by part or all of the electrode surface in contact with the gas.

[0039] When the entire surface of the electrode is covered with an insulating film or plate, only the insulating film or plate is in contact with the gas. Therefore, the discharge between the metal electrodes is blocked by the insulating film or plate, forming an insulating film or plate dielectric discharge. Electrons and ions generated by the discharge cannot pass through the insulating film or plate. Metal surfaces also do not participate in the various chemical reactions that occur in the gas.

[0040] When a part of the electrode surface is covered with an ...

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PUM

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Abstract

A basic unit utilizing high voltage to generate gas plasma discharge comprises at least one capacitor, two electrodes and metal conducting wires, wherein the two electrodes are arranged in parallel; a discharge space is formed between the two electrodes; the discharge space comprises at least one gas outlet and at least one gas inlet; and at least one of the two electrodes is connected with a pole plate of the capacitor through the metal conducting wires, and the other pole plate of the capacitor is used as a power supply input terminal of the basic unit. A capacity-grading plasma reactor adopting the basic unit comprises a high-voltage power supply, a plasma reactor cavity and at least two basic units, wherein both of the basic units are arranged in the plasma reactor cavity; and power supply input terminals of the basic units are connected with the high-voltage power supply. The plasma reactor provided by the invention can be applied to gas purification of automobile tail gas, flue gas, atmosphere, indoor air and various industrial exhaust gases, and can also be used for preparing ozone.

Description

[technical field] [0001] The invention relates to a basic unit for generating gas plasma discharge by high voltage and a volumetric plasma reactor. This volumetric plasma reactor can be used for gas purification such as automobile exhaust, flue gas, atmosphere, indoor air, and various industrial exhaust gases, and can also be used for ozone preparation. [Background technique] [0002] Plasma reactors are divided according to the electrode structure, there are (1) coaxial circular center type (such as figure 1 ); (2) surface-surface type (such as figure 2 ); (3) Needle-surface type (such as image 3 ); (4) needle-needle type (such as Figure 4 ). These 4 plasma reactors have only discharge gas between the electrodes (such as Figure 4 ). If there is a dielectric barrier between the electrodes, there are (5) coaxial center dielectric barrier types (such as Figure 5 ); (6) Tubular dielectric barrier filling type (such as Figure 6 ); (7) surface-surface dielectric bar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/24
Inventor 姚水良
Owner ZHEJIANG GONGSHANG UNIVERSITY