High-efficiency composite fume purifier with alternating electric field

Abstract

The invention relates to a high-efficiency composite fume purifier with an alternating electric field, which is characterized in that a purifying element arranged in a flue pipe comprises an alternating signal generating element, electrodes of an alternating electric field and high-voltage packets, wherein the output end of the alternating signal generating element is electrically connected with the input ends of the high-voltage packets, and the output ends of the high-voltage packets are respectively connected to two electrodes of an alternating electric field. On the basis of static electricity fume purifiers, the high-efficiency composite fume purifier adopts the alternating electric field instead of an original static electric field and has obvious effect, has 30% of film stacking speed of electrodes in the static electric field, greatly reduces the generation of discharge arcs in the electric field and fume pollution, effectively delays attenuation of field intensity, accelerates fume sedimentation, has better fume removing rate, adds a temperature control system in a circuit of the electric field to adjust and control field intensity, effectively avoids breakdown caused by fume arc ignition and avoids fire.

Description

technical field [0001] The patent of the present invention relates to oil fume purification and environmental protection equipment, specifically a high-efficiency composite oil fume purifier with an alternating electric field. Background technique [0002] The composition of kitchen fumes is very complex, and it is extremely difficult to deal with. The large amount of fumes generated by restaurants (especially Chinese restaurants) during normal business operations will cause great environmental pollution if they are directly discharged. [0003] At present, the general small and medium-sized catering industry and restaurants still adopt a straight row method to discharge oil fumes into the air, which has caused conflicts between the public and restaurants. In this situation, many oil fume purification equipment factories are forced to find a way out from technological progress. [0004] The difference between Chinese cooking methods and Western cooking methods produces comp...

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Problems solved by technology

[0008] At present, more advanced manufacturers generally adopt "electrostatic type" (including electrostatic composite type), which uses high-voltage electrostatic field to charge, settle, and absorb oil fume. The purification rate can reach more than 80%, and the emission concentration can reach 1mg / m 3 , although it has a good purification effect on oil fume, the DC electrostatic field makes the ionized oil fume particles concentrate and adsorb to the electrostatic dirt collecting plate of the anode, which has the disadvantage of easy film accumulation on the surface of the electrode plate, which increases the dielectric constant of the electrostatic field , resulting in the decrease of the Coulomb force on the oil particles, the adsorption effect of the charged particles of the oil fume is gradually reduced, which directly causes the increase of the concentration of the oil fume emission

At the same time, the electrode plate film also causes flashover discharge, which makes the electric field disappear instantaneously, and the adsorption effect of oil particles disappears, hindering the continuous purification effect of oil fume particles, and causing the danger of fire

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