Patent ID: 11968769
Assignee: HANGZHOU CITY UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC H  Y | IPC H

Claim 0:
1. A dielectric barrier discharging tube having a synergistic column of needle electrodes to utilize a plurality of channels to adsorb catalysts, wherein the dielectric barrier discharging tube comprises: a quartz tube (1), a high-voltage pole (3), an inner electrode (2), and a plurality discharging needle sets (4);
wherein, the high-voltage pole (3) is arranged at an outside of the quartz tube (1); the inner electrode (2) is arranged inside the quartz tube (1); the plurality of discharging needle sets (4) are arranged on a surface of the inner electrode (2);
two catalytic blocks (5) are arranged respectively on two sides of each set of the plurality of discharging needle sets (4); each catalytic block (5) comprises a block body (501); surfaces of the block body (501) defines at least one inclined inner channel (503) extending through a thickness of the block body (501);
a higher end of each inner channel (503) faces towards a corresponding one discharging needle (4) of the discharging needle sets; a circumferential side wall of the block body (501) defines at least one inclined outer channel (502); a lower end of each outer channel (501) faces towards a corresponding one discharging needle (4) of the discharging needle sets;
after gas enters the quartz tube (1), the gas passes through the inclined outer channel (502) and the inclined inner channel (503) defined in one of the two catalytic blocks (5) disposed at a front of the discharging needle (4), the gas out of the inclined outer channel (502) and the inclined inner channel (503) converge to a discharging region where the discharging needle (4) is located, a rotating flow field is formed in the discharging region, and the gas flowing out of the inner channel (503) and the gas flowing out of the outer channel (502) collide with each other;
after the gas passes through the discharging region, the gas enters the outer channel (502) and the inner channel (503) defined in the other one of the two catalytic blocks located at a back of the discharging needle (4), a U-shaped flow field is generated between the gas and the catalytic block (5) at the back of the discharging needle (4);
the gas flowing out of the outer channel (502) flows in a direction away from the inner electrode (2), collides an inner wall of the quartz tube (1), and flows back toward a middle of the quartz tube (1), such that the U-shaped flow field is generated; and
the gas flowing out of the inner channel (503) flowing towards the inner electrode (2), collides with the surface of the inner electrode (2), and flows away from the inner electrode (2), such that the U-shaped flow field is generated.