US 12,102,960 B2
Plasma purification device for purifying catering oil fume and method for purifying catering oil fume
Xing Zhang, Jiangsu (CN); and Yubin Chi, Jiangsu (CN)
Assigned to SUZHOU UNIVERSITY OF SCIENCE AND TECHNOLOGY, Jiangsu (CN)
Appl. No. 18/565,368
Filed by SUZHOU UNIVERSITY OF SCIENCE AND TECHNOLOGY, Jiangsu (CN)
PCT Filed Jul. 19, 2023, PCT No. PCT/CN2023/108036
§ 371(c)(1), (2) Date Nov. 29, 2023,
PCT Pub. No. WO2024/017273, PCT Pub. Date Jan. 25, 2024.
Claims priority of application No. 202210867567.3 (CN), filed on Jul. 22, 2022.
Prior Publication US 2024/0261723 A1, Aug. 8, 2024
Int. Cl. B01D 53/32 (2006.01); B01D 53/86 (2006.01); B03C 3/14 (2006.01); B03C 3/38 (2006.01); B03C 3/41 (2006.01); B03C 3/45 (2006.01); B03C 3/78 (2006.01)
CPC B01D 53/32 (2013.01) [B01D 53/8687 (2013.01); B01D 2257/708 (2013.01); B01D 2258/0275 (2013.01); B01D 2259/818 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A plasma purification device for purifying catering oil fume, wherein the plasma purification device comprises successively in a flow direction of airflow:
an inlet;
a rotary discharge module configured to negatively charge oil fume particulate matter with a particle size between 2 μm and 50 μm in the catering oil fume;
an electrostatic adsorption module configured to capture the negatively charged oil fume particulate matter;
a back corona catalytic module configured to treat VOCs in the catering oil fume; and
an outlet,
wherein the rotary discharge module comprises a central rod arranged parallel to the flow direction of airflow and a plurality of barbed corona electrodes arranged around the central rod, the central rod can rotate and drive the barbed corona electrodes to rotate, and the barbed corona electrodes after being energized negatively charge the oil fume particulate matter in the catering oil fume,
the plurality of barbed corona electrodes are arranged in a predetermined pattern around the central rod, in a cross-section of the predetermined pattern, the barb of the barbed corona electrode is arranged in a fishbone pattern with an axis of the central rod, with an angle ranging between 30 degrees to 60 degrees.