Gas liquid double-fluid electrostatic atomization device

Abstract

The invention provides a gas liquid double-fluid electrostatic atomization device. The gas liquid double-fluid electrostatic atomization device comprises an air discharge chamber, a brush-shaped electrode, a needle-shaped grounding electrode, a charged air channel, an outer shell, a gas liquid mixing chamber, an isolation pipe, a pressing body and a gland, wherein the air discharge chamber communicates with the gas liquid mixing chamber through the charged air channel; one end of the isolation pipe is perpendicularly connected with the outer shell; a gas channel in the shape of a circular ringis formed in the outer side of the isolation pipe; a cylindrical liquid channel is formed in the isolation pipe; a plurality of pairs of vent holes are formed between the gas channel and the liquid channel; the liquid channel communicates with the gas channel; a gas inlet channel is formed in the other end of the isolation pipe; and the gas inlet channel communicates with the gas channel. According to the gas liquid double-fluid electrostatic atomization device, a lot of electrons and negative ions are generated through corona discharge of the electrode, the electrons and the negative ions enter the mixing chamber along with air and are fully mixed with a liquid, the liquid is charged, the electrode and the liquid are prevented from being in direct contact, and safety is improved; and theinflow liquid forms a two-phase fluid of which a gas and the liquid are separated, the two-phase fluid has relatively high resistance, charge loss is effectively prevented, and the charge-to-mass ratio of liquid drops is greatly increased.

Description

technical field [0001] The invention relates to a gas-liquid two-fluid electrostatic atomization device, in particular to a gas-liquid two-fluid electrostatic atomization device which utilizes air discharge to realize efficient charging of droplets, and belongs to the technical field of fluid machinery. Background technique [0002] Electrostatic spray technology is an atomization technology in which liquid is broken into charged droplets under the participation of high-voltage static electricity. Compared with other spray methods, this atomization process has many advantages over conventional atomization. Droplet charging can reduce the surface tension of the liquid and the atomization resistance, so that the droplets are broken into smaller droplets, and the diameter distribution becomes more uniform. Due to its good spray characteristics and deposition effect, electrostatic spray technology is widely used in pesticide spraying, sanitation and epidemic prevention disinfec...

AI Technical Summary

Problems solved by technology

However, since liquid fuels are all polar media with extremely low conductivity, they cannot be charged by induction charging, and can only be charged by contact charging and corona charging, so the spray efficiency of this nozzle is not high

[0006] The above-mentioned patents apply electrostatic spray technology, and most of them use high-voltage electrode contact charging or corona charging to atomize and charge the droplets, so that the electrodes are easy to break down, and there are potential safety hazards

At the same time, the charged droplet is a good conductor, and the high-voltage current will cause damage to the device components.

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