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Square electrode low-temperature plasma and wood fiber cooperated tail gas treatment device

A technology of low-temperature plasma and plasma, which is applied in exhaust gas treatment, exhaust device, silencer device, etc.

Pending Publication Date: 2021-01-05
NORTHEAST FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The square block wood fiber filter element is made of high temperature resistant polytetrafluoroethylene mesh wrapped wood fiber

Method used

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  • Square electrode low-temperature plasma and wood fiber cooperated tail gas treatment device
  • Square electrode low-temperature plasma and wood fiber cooperated tail gas treatment device

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Embodiment Construction

[0006] A square electrode low-temperature plasma cooperative wood fiber tail gas treatment device, first fix a high-voltage electrode plate 5 with a length of 250 mm, a width of 10 mm, and a height of 80 mm in the middle of the fixed plate 6, and the fixed end is connected to the high-voltage positive electrode wire 1, and the wire passes through the sealing rubber 4 Finally, stick the sealing rubber and the top of the fixing plate close together, then inlay them in the upper casing 3 after the insulation treatment, and then paste the insulating rubber 9 with a thickness of 5mm around the inner cavity of the casing. Make two long 250mm, wide 10mm, high 40mm square wood fiber filter element 12 with high temperature resistant polytetrafluoroethylene wrapping thickness is 0.05-1mm, width is 1-2mm, length is 30-50mm, and then They are respectively pasted on the inside of the other two high-voltage electrode plates. When pasting, ensure that the upper surface of the wood fiber filte...

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Abstract

The invention relates to a square electrode low-temperature plasma and wood fiber cooperated tail gas treatment device. The square electrode low-temperature plasma and wood fiber cooperated tail gas treatment device is a device combining a plasma generation device and a wood fiber filter element, wherein a filter body is the wood fiber filter element formed by wrapping wood fibers with a high-temperature-resistant polytetrafluoroethylene net; the plasma generation device adopts a dielectric barrier discharge technology; after a high-voltage electrode is electrified, plasma is generated under the condition that the wood fiber filter element is used as a medium; the device is provided with two plasma generation areas; tail gas of a diesel engine enters the device; low-temperature plasma in the first reaction area and NOX and PM in the diesel engine are subjected to complex redox reaction to generate harmless gases such as N2 and CO2; the wood fibers have certain adsorption capacity on particulate matters and unburned oil products; and the unpurified gases can be continuously subjected to the same reaction in the second reaction area, so that the purification efficiency is greatly improved.

Description

Technical field: [0001] The invention belongs to a kind of diesel engine tail gas nitrogen oxide (NO X ) and soot particle (PM) processing device, installed at the rear end of the diesel engine muffler near the tail pipe, used to treat NO in the exhaust gas of the diesel engine X and PM. Background technique: [0002] With the rapid development of my country's transportation industry, vehicles powered by diesel engines have been widely used, but the environmental pollution caused by diesel engines has also attracted people's attention. Diesel engine exhaust is mainly composed of incompletely burned oil, carbon black particulate matter, nitrogen oxides, etc. Traditional exhaust gas treatment methods are not very effective in purifying diesel engines. Therefore, researchers have never given up on the research on the purification of diesel engine exhaust. Up to now, the methods of purifying diesel engine exhaust include activated carbon adsorption method, plasma method, catal...

Claims

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Application Information

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IPC IPC(8): F01N3/01F01N3/022F01N3/033
CPCF01N3/01F01N3/0226F01N3/033F01N2570/14
Inventor 郭秀荣杨季彪徐岳峰杨潇何庆合杜丹丰
Owner NORTHEAST FORESTRY UNIVERSITY
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