Electrostatic dust collection device based on non-uniform electric field

Abstract

The invention discloses an electrostatic dust collection device based on a non-uniform electric field. The device comprises a dust collection electrode, a shielding pipe and a fan, the shielding tubecoaxially and annularly sleeves the outer side of the dust collecting electrode through an electrode supporting assembly; wherein the dust collecting electrode is connected with a high-voltage power supply, an electrode dust collecting channel through which dusty gas passes is formed between the shielding tube and the dust collecting electrode, two ends of the electrode dust collecting channel areopen, one end of the electrode dust collecting channel is an air inlet, the other end is an air outlet, and a fan for bringing the dusty gas into the electrode dust collecting channel is arranged outside the electrode dust collecting channel; the dust collection electrode, the shielding pipe and the supporting assembly form electrostatic dust collection units in the electrostatic dust collectiondevice, and the electrostatic dust collection units are arranged in parallel; the shielding tube is in a multi-cylinder shape arranged in a concentric circle mode, and the dust collecting electrodes are sequentially arranged in the radial direction from the dust collecting electrodes to the outer side in an increasing mode. Gas dust collection can be achieved on the premise that air is not brokenthrough, the device is simple in structure and low in energy consumption, ozone cannot be generated, and secondary pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of dust removal, and in particular relates to an electrostatic dust collecting device based on a non-uniform electric field. Background technique [0002] The electrostatic precipitator is a dust removal device that uses the Coulomb force to separate the dust or droplets in the gas to purify the air. It has a wide range of applications in industrial production and households. [0003] The electrostatic precipitator currently used mainly attaches free electrons to the dust particles by penetrating the air discharge, but there are the following problems with this method: First, in the process of penetrating the air, ozone is bound to be generated, It will cause secondary pollution to the environment; the second is to use the method of penetrating the air. The discharge volume is large enough to ensure that enough dust particles can be charged. If the power is small, some dust particles cannot be charged, but t...

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Problems solved by technology

[0003] The currently used electrostatic precipitator mainly makes free electrons attach to the dust particles by breaking down the air discharge, but there are several problems in using this method: first, ozone is bound to be generated in the process of breaking down the air, Secondary pollution to the environment; the second is to use the method of breaking down the air. The discharge capacity is large enough to ensure that enough dust particles can be charged. If the power is small, some dust particles cannot be charged, but the greater the discharge capacity, The greater the amount of ozone in the air, the more serious the secondary pollution will be; the third is that it is difficult for the dust removal device to completely absorb the generated charge, and the unabsorbed charge leaves the dust removal device with the fresh air, making the fresh air charged, which is different from the neutral air. The normal air is potentially dangerous; the fourth is that the entire device needs to be continuously discharged during use, which makes the overall energy consumption of the device higher

Although this device can realize the rapid cleaning of dust, the dust collection still uses the method of breaking down the air to make the dust particles stick to free electrons.

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