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Corona discharge-based wire-pipe diesel vehicle exhaust particulate filter

A particle trap, corona discharge technology, applied in exhaust devices, machines/engines, mechanical equipment, etc., can solve problems such as environmental and human health hazards

Active Publication Date: 2020-01-24
HARBIN AIRUI AUTOMOTIVE EXHAUST SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Diesel engine is widely used because of its excellent power performance, but its PM emission is dozens of times that of gasoline engine, causing great harm to the environment and human health

Method used

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  • Corona discharge-based wire-pipe diesel vehicle exhaust particulate filter

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Embodiment Construction

[0011] The present invention will be described in further detail below by means of specific embodiments:

[0012] The reference signs in the accompanying drawings of the specification include: insulating tapered plug 1, charging tube 2, screw 3, dust collecting tube 4, sealed shell 5, exhaust gas outlet 6, ceramic support disc 7, ceramic disc 8, dust collecting electrode Line 9, charged electrode line 10.

[0013] The working process of the line tube type diesel vehicle exhaust particulate filter based on corona discharge: the diesel vehicle exhaust enters from the inlet of the charging tube 2, and after the PM is fully charged and condensed under the condition of pulsed corona discharge, it is charged The particles enter the dust collection pipe 4; under the action of the DC electric field force, the charged particles are collected on the inner wall of the dust collection pipe 4, and the purified gas is discharged into the atmosphere through the tail gas outlet 6. The sealed...

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Abstract

The invention provides a novel wire-pipe type diesel vehicle tail gas particle trap based on corona discharge. The wire-pipe type diesel vehicle tail gas particle trap comprises a charged part and a dust collection part. Bobbin type high-voltage pulse corona charging is adopted by the charged part, and bobbin type high-voltage negative direct current corona charging is adopted by the dust collection part which collects soot particles. Each barrel is provided with an electrode wire inlet and a high-temperature-resistant insulating conical plug, and electrode wire supporting discs are arranged in the barrels. The charged part and the dust collection part are connected in an insulated mode. After an engine is started, tail gas enters the charged part, and after the soot particles are fully charged, the soot particles enter the dust collection area along with the tail gas; and then the particles are further charged and then collected to the inner wall of a dust collection pipe under the action of electric field force, so that purification is completed. The purification structure is simple, purification efficiency is high, and the cost is low.

Description

Technical field: [0001] The invention belongs to a diesel vehicle exhaust soot particle (PM) purifying device, which is installed behind the muffler of the diesel vehicle exhaust system and can effectively capture the soot particle in the diesel vehicle exhaust. Background technique: [0002] Diesel engine is widely used because of its excellent power performance, but its PM emission is dozens of times that of gasoline engine, causing great harm to the environment and human health. With the rapid increase in the number of diesel vehicles, the exhaust gas purification problem has attracted the full attention of countries all over the world. Diesel vehicle exhaust PM purification methods mainly include filtration method and corona discharge method. The filtration method is to filter PM on the filter material to achieve the purpose of removing PM. The corona discharge method is to charge PM through discharge and capture it through an electric field. The discharge method remov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/01
Inventor 郭秀荣王迎辉杜丹丰亓占丰郭秀丽
Owner HARBIN AIRUI AUTOMOTIVE EXHAUST SYST
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