Flat plate type air filter with columnar dielectrophoresis electrodes

Abstract

The invention relates to a flat air filter using columnar dielectrophoretic electrodes, comprising a frame housing and a columnar electrode assembly, the frame housing is a rectangular frame, and the columnar electrode assembly is embedded in the rectangular frame; the first electrode plate of the columnar electrode assembly 1. Columnar protrusions and holes are distributed on the second electrode plate, and the columnar protrusions and holes of the first electrode plate are complementary to the holes and columnar protrusions of the second electrode plate; after the two electrode plates are relatively buckled, one of The columnar protrusions of the electrode plate are embedded into the holes of the other electrode plate; the first electrode plate and the second electrode plate are respectively connected to different output ends of the high-frequency AC power supply, and the non-protruding parts of the first electrode plate and the second electrode plate The surface forms an active surface that emits a non-uniform electric field outward. The flat-plate air filter of the present invention can be used to separate particles with a particle size of micron, and the dielectrophoretic force is about 10 times higher than that of the cylindrical electrode in the area close to the electrode.

Description

technical field [0001] The invention belongs to the technical field of air filtration, in particular to a flat-plate air filter using columnar dielectrophoresis electrodes. Background technique [0002] At present, people generally feel that the air quality is not optimistic, and air pollution is the main reason, which is also the root cause of poor air quality. Among the 74 cities in China that monitor air quality, 70 cities have substandard air quality, and in many cases it even reaches serious pollution. For example, the frequent smog incidents in Beijing last year aroused the attention of the entire Chinese people. The serious problem of air pollution cannot be eliminated every two years, and air purifiers are undoubtedly a good solution. [0003] Commonly used air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, superstructure photomineralization technology, HEPA high-efficien...

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Problems solved by technology

In this way, the effect of generating an inhomogeneous electric field in the middle of the electrodes cannot be achieved, so the above-mentioned setting fails to achieve the purpose of the invention

[0011] Another type of dielectrophoresis electrode used is an independent strip, which is connected to the corresponding output end of the AC power supply through wires. It needs to be installed in the separation chamber one by one and connected to the corresponding output ends through wires, which is not only time-consuming and laborious, but also leads to The structure of the separation chamber is relatively loose, the wiring is complicated, and it is easy to be damaged

In addition, the strip electrodes need to be manufactured one by one, and the process cost is relatively high

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