High-voltage electrostatic purification device and extractor hood

Abstract

The invention relates to a high-voltage electrostatic purification device which comprises a through frame and a polar plate assembly arranged in the frame. The polar plate assembly comprises first polar plates and second polar plates which have different polarities and are alternately arranged at intervals; the first polar plates and the second polar plates are arranged in parallel and extend in the air inlet direction; a first filter screen is arranged on an air inlet of the frame; and sharp teeth are arranged on the edge of one end, facing the first filter screen, of each first polar plate. The invention further relates to an extractor hood which comprises a machine shell, a fan system arranged in the machine shell, and the high-voltage electrostatic purification device, wherein the high-voltage electrostatic purification device is arranged on an oil smoke channel of the machine shell and arranged at the air inlet end or the air outlet end of the fan system. The high-voltage electrostatic purification device is better in ionization charge capacity, can perform pre-filtration and can uniformly feed air. The extractor hood applying the high-voltage electrostatic purification device is better in oil smoke purification capacity under the condition that the power is kept unchanged.

Description

technical field [0001] The invention relates to a high-voltage electrostatic purification device, and also relates to a range hood using the high-voltage electrostatic purification device. Background technique [0002] In order to protect the environment, a filter device is usually installed in the smoke treatment device to filter the external exhaust flow and reduce the concentration of smoke in the external exhaust flow. For example, a high-voltage electrostatic purification device will be installed in the range hood. The high-voltage electrostatic purification device has an ionization area located at the air inlet end and a dust collection area located downstream of the ionization area. In this way, the oil fume in the airflow passing through the ionization area of ​​the high-voltage electrostatic purification device The particles are charged under the action of ionization, and then when passing through the dust collection area, the charged oil fume particles are adsorbed...

AI Technical Summary

Problems solved by technology

Although the distance of the dust collection area is increased to a certain extent, and the dust collection effect in a small space is improved, the distance of the ionization area of ​​the purification device with this structure is still relatively short, so the charging ability of the passing oil fume particles is weak. Especially when the oily fume passes through a relatively concentrated cross-sectional area of ​​the purification device, it cannot guarantee a good ionization effect on the oily fume particles, resulting in limited ability to purify the oily fume

In order to improve the charging ability of oil fume particles, since the charging ability of a pole wire is relatively fixed, it can only be realized by increasing the distance of the ionization zone and increasing the electrode wire.

This solution will not only increase the power due to the increase of the pole wire, but also lead to a decrease in the distance of the dust collection area, which will affect the purification ability of the oil fume particles

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