Plasma generation system by tubular dielectric barrier discharge and application thereof

A technology of dielectric barrier discharge and plasma, which is applied in the direction of plasma, electrical components, separation methods, etc., can solve the problems of partial discharge, obvious thermal effect, poor adaptability, etc., achieve uniform distance between electrodes, uniform air flow distribution, and avoid corrosion problems Effect

Active Publication Date: 2012-07-25
SHANDONG PALLET ENVIRONMENTAL ENG
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Problems solved by technology

[0005] 1. It cannot stably generate high-power and large-volume plasma regions under low voltage conditions, and its practicability is poor;
[0006] 2. It is easy to have partial discharge, resulting in uneven discharge;
[0007] 3. The thermal effect is obvious, the energy utilization...

Method used

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  • Plasma generation system by tubular dielectric barrier discharge and application thereof
  • Plasma generation system by tubular dielectric barrier discharge and application thereof
  • Plasma generation system by tubular dielectric barrier discharge and application thereof

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Embodiment Construction

[0029] Such as figure 2 As shown, there are 96 discharge tubes, 96 transformers, and 96 plasma power supplies in this device system. One-to-one correspondence is adopted, that is, each discharge tube is equipped with a power supply and a transformer. The discharge tubes are arranged in row tubes, with an even interval of 150mm between adjacent discharge tubes. Both the inlet air distribution pipe and the outlet air collection pipe have a diameter of 600mm. The device system designed above can work under atmospheric pressure, and can process waste gas of 2800-4800m per hour 3 / h, and is suitable for sulfur-containing, nitrogen-containing odorous gases and benzene series, esters, alcohols, and ethers. The implementation effect shows that when the styrene intake concentration is 1000mg / m 3 , the external voltage of the discharge tube is 9000V, the removal rate of styrene by the device is over 99%, the discharge is stable during the reaction process, and the thermal effect of ...

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Abstract

A plasma generation system by tubular dielectric barrier discharge belongs to the technical field of environmental protection and is characterized by comprising discharge tubes, plasma power supplies, high-tension transformers and a gas delivery and distribution system. The discharge tubes comprise three medium tubes with identical center, wherein a closed cavity formed by external medium tube and middle medium tube is filled with conductive metal powder so as to serve as an external electrode, a gas passage is formed in an open area formed by the middle medium tube and internal medium tube, and a closed cavity in the internal medium tube is filled with the conductive metal powder so as to serve as an internal electrode. The plasma generation system is capable of avoiding the problem of electrode corrosion, generating high power and large volume plasma stably, is even in gas flow distribution, stable in discharge, and is applicable to purification treatment of waste gas pollution.

Description

technical field [0001] The invention relates to an environmental protection technology, which is a process technology and a device for generating plasma through a dielectric barrier discharge of a circular casing under atmospheric pressure and applying it to the purification of organic odor gases, specifically a dielectric barrier discharge device and its application. Background technique [0002] Dielectric Barrier Discharge (DBD), as a reliable method to generate low-temperature (non-equilibrium) plasma under atmospheric pressure, is widely used in the fields of ozone synthesis, vacuum ultraviolet light source, material surface treatment and environmental protection. Dielectric barrier discharge can realize large-area uniform discharge, and can fully ionize organic molecules, water molecules, and oxygen molecules, thereby stimulating more active species, such as -OH, O 3 , -O, energy-carrying electrons, R, H 2 o 2 etc. Compared with other discharge methods that generate...

Claims

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Application Information

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IPC IPC(8): H05H1/24B01D53/76B01D53/44
Inventor 李瑞莲
Owner SHANDONG PALLET ENVIRONMENTAL ENG
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