Array type multi-needle coaxial high-efficiency treatment low-temperature plasma reactor

Abstract

The invention discloses an array type multi-needle coaxial efficient treatment low-temperature plasma reactor which comprises a main pipe, one end of the main pipe is connected with two branch pipes, the tail end of one branch pipe is connected with a rotary reactor, and the tail end of the other branch pipe is connected with a fixed reactor; a flow detector is arranged on the main pipe, and an electric three-way ball valve is arranged at the joint of the main pipe and the branch pipe; a rotary fan blade is arranged on an inner electrode of the rotary reactor; an inner electrode of the fixed reactor is fixedly arranged, a front flow guide ring is arranged at the front part of a discharge needle of the inner electrode, a plurality of grooves are radially formed in the front flow guide ring, and the grooves are aligned with the discharge needle. According to the invention, the gas leading to the rotary reactor and the fixed reactor can be distributed according to the flow of the treated gas, so that a more optimized gas treatment scheme is realized.

Description

technical field [0001] The invention relates to the technical field of DBD reaction, in particular to an array type multi-needle coaxial high-efficiency processing low-temperature plasma reactor. Background technique [0002] Dielectric barrier discharge, referred to as DBD, is a non-equilibrium gas discharge with an insulating medium inserted into the discharge space, also known as dielectric barrier corona discharge. The use of dielectric barrier discharge to generate low-temperature plasma is a new type of post-emission treatment technology. It has the advantages of low energy consumption, low energy consumption and high efficiency, and is mainly used in industrial and civil waste gas treatment. [0003] The existing DBD reaction equipment includes a pipeline electrode structure and a flat electrode structure. In order to improve the processing effect of the pipeline electrode structure in the treatment of high-concentration gas, the applicant has newly developed a Rotat...

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Problems solved by technology

However, when the gas flow rate is too large, on the one hand, the gas flow rate of the rotary reactor is too large, which will cause the inner electrode to rotate too fast and cause danger; Unable to flow smoothly, it is easy to cause damage to the internal structure of the reaction tube

[0004] Compared with the rotary reactor, although the fixed discharge needle reactor can make the gas pass through smoothly, but because the discharge needle is fixed, the treatment range of the gas is small, and it is difficult for some gases to concentrate from the tip discharge area of ​​the discharge needle Flow through, the treatment effect on gas is poor

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