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Electrostatic precipitator

A technology of electrostatic precipitator and cyclone dust collector, which is applied in the field of electrostatic precipitator, and can solve problems such as large pressure loss and easy clogging of filters

Active Publication Date: 2015-01-07
FUJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As such a PM removal device, there is a method of installing a filter in the exhaust pipe, but there is a problem that the filter is easily clogged and the pressure loss is large.

Method used

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  • Electrostatic precipitator
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  • Electrostatic precipitator

Examples

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Embodiment Construction

[0062] Embodiments of the present invention will be described below with reference to the drawings.

[0063] figure 1 It is a perspective view showing a part of the housing showing the first embodiment of the present invention cut away.

[0064] In the figure, 1 is an electrostatic precipitator, which can capture, for example, particulate matter (PM: Particulate Matter) whose main component is carbon and whose particle size is less than 100 μm, especially the particle size Suspended particulate matter (SPM: Suspended Particulate Matter) below 10 μm.

[0065] The electrostatic precipitator 1 has, for example, a cube-shaped frame body 2, and a plurality of groups of dust-collecting electrodes 40 are arranged in the frame body 2, and the dust-collecting electrodes 40 are composed of, for example, square plate electrodes 20 and discharge electrodes 30. Among them, such as figure 2 As shown, the discharge electrode 30 is opposed to one surface of the plate-shaped electrode 20 ...

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Abstract

Provided is an electrostatic precipitator that, when collecting particulate matter (PM), does not require a large-volume air purging unit, tends not to clog, exhibits minimal re-entrainment even in high-speed air flows, demonstrates excellent collection performance, and tends not to fail. The present invention is provided with: a plate electrode (20) in which are formed a plurality of holes through which PM passes; a discharging electrode (30) disposed so as to face one surface of the plate electrode; a discharge generation unit for applying a voltage between the plate electrode and the discharging electrode to generate a discharge for providing a Coulomb force to the particulate matter; a PM-collecting collection region formed on the side opposite the side on which the discharge electrode faces the plate electrode; a gas circulation region (33) in which a PM-containing gas is caused to circulate, the gas circulation region (33) formed between the plate electrode and the discharging electrode; and a PM recovery unit (50) that separatingly recovers PM collected by circulating a recovery gas in a direction intersecting the PM-gas circulation direction in the collection region.

Description

technical field [0001] The present invention relates to an electrostatic precipitator for removing PM from PM-containing gas such as internal combustion engine exhaust gas containing particulate matter (PM: Particulate Matter). Background technique [0002] The exhaust gas discharged from the internal combustion engine contains harmful substances such as PM whose main component is carbon, in addition to NOx and SOx. It is well known that inhaling PM into the human body through breathing causes various health hazards, so the development of a PM removal device capable of effectively removing PM is expected. [0003] As such a PM removal device, there is a method of installing a filter in the exhaust pipe, but there is a problem that the filter is easily clogged, resulting in a large pressure loss. In contrast, the electrostatic precipitator does not become clogged and has a small pressure loss, so it is suitable for installation in an exhaust pipe of an internal combustion en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/51B03C3/15B03C3/40B03C3/74B03C3/88
CPCB03C3/09B03C3/15B03C3/368B03C3/41B03C3/017B03C3/47B03C2201/10B03C3/06B03C3/08B03C3/12B03C3/51B03C3/74B03C2201/12B03C2201/30
Inventor 乾贵志川上一美吉田将隆三塚康史
Owner FUJI ELECTRIC CO LTD
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