Device for purifying automobile exhaust through charged fine water spray

Abstract

The invention provides a device for purifying automobile exhaust through charged fine water spray. The device comprises an exhaust connecting pipe arranged behind an automobile exhaust pipe. A corona charged area is arranged on the front portion of the exhaust connecting pipe. A rotational flow guide blade is arranged in the middle of the exhaust connecting pipe. An electrostatic atomization area is arranged on the rear portion of the exhaust connecting pipe. A high-voltage electrostatic generator, a barbed nail corona wire and insulating bushes are included in the corona charged area. An insulating layer nested on the inner wall of the connecting pipe, a high-voltage electrostatic generator and a hollow spiral pipe are included in the electrostatic atomization area. The barbed nail corona wire is fixed to the axis of the connecting pipe. The front high-voltage electrostatic generator is connected with the barbed nail corona wire. The outer wall of the connecting pipe is grounded. The rotational flow guide blade is nested in the middle of the connecting pipe. The rear portion of the hollow spiral pipe surrounds the inner wall of the insulating layer. One end of the hollow spiral pipe is connected with a water tank. The other end of the hollow spiral pipe is sealed and fixed in the insulating layer. The rear high-voltage electrostatic generator is connected with the hollow spiral pipe. The automobile exhaust purifying device can enable exhaust to be charged sufficiently, water consumption is little, the acting time of charged fine water spray on automobile exhaust is long, and the purification efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of exhaust gas treatment, in particular to a device for purifying automobile exhaust with charged fine water mist. Background technique [0002] At present, smog occurs frequently in major cities in my country, and the air pollution situation is very severe. Smog contains a large number of fine particles with a particle size of less than 2.5 microns (PM2.5 for short). These fine particles are suspended in the air for a long time and can directly enter the bronchi and even the lungs through the respiratory system, causing respiratory diseases. Studies have shown that every 10 μg / m increase in PM2.5 in the atmosphere 3 , the daily death rate of Chinese residents will increase by 0.31%. With the increase of the number of automobiles in our country, a large amount of automobile exhaust is discharged into the atmosphere every year, and automobile exhaust has gradually become the main source of PM2.5. To contro...

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Notification No. CN203809083U, titled "An Electrostatic Precipitator for Automobile Exhaust Gas" After the automobile exhaust gas is condensed through a two-stage charging system, the particulate matter of the automobile exhaust gas is removed by the adsorption method of a metal dust collecting plate. The defect is that the device consumes more energy. High and low purification efficiency for PM2.5; Chinese Patent Publication No. CN103089375A, titled "Wet Dust Removal Device for Automobile Exhaust Gas", uses a fan to make automobile exhaust gas pass through two layers of filter materials in a dust removal box filled with water to purify automobile exhaust gas. Its defect is: device volume is bigger, energy consumption height; ) to purify the harmful gases in the exhaust gas, the disadvantages are: the device is large in size, the charge of particles and the adsorption time of water mist are short, which leads to the low purification efficiency

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