Noise-reducing tail gas filter

An exhaust filter and noise reduction technology, applied in exhaust devices, machines/engines, mufflers, etc., can solve problems such as environmental pollution, muffler sheets are easy to loosen and fall off, and the muffler effect is not easy, so as to increase the contact area, improve the The effect of exhaust gas purification effect

Inactive Publication Date: 2017-03-15
华玉娣
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary automobile exhaust filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to produce CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; the existing tail gas silencer is It is realized by setting the sound-absorbing sheet, but the sound-absorbing sheet is easy to loosen and fall off, and it is difficult to achieve a good sound-absorbing effect

Method used

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  • Noise-reducing tail gas filter

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Embodiment Construction

[0037] see Figure 1-5 , the present invention relates to a noise-reducing exhaust gas filter, which includes a filter box 1, a filter screen 2, a ceramic honeycomb carrier 3, a fire extinguisher 7 and a muffler 8, the left end of the filter box 1 is an exhaust gas inlet 4, and the right end is an exhaust gas outlet 5, The outlet of the muffler 8 is connected to the inlet of the fire extinguisher 7 , and the outlet of the fire extinguisher 7 is connected to the exhaust gas inlet 4 of the filter box 1 .

[0038] The filter screen 2 and the ceramic honeycomb carrier 3 are arranged in the filter box 1, the filter screen 2 is close to the exhaust gas inlet 4, and the filter box 1 includes a first arc edge 1.1, a second arc edge 1.2, a first hypotenuse 1.3 and the second hypotenuse 1.4, the first circular arc side 1.1, the second hypotenuse 1.4, the second circular arc side 1.2 and the first hypotenuse 1.3 are connected end to end in sequence, and the joints adopt rounded transitio...

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Abstract

The invention relates to a noise-reducing tail gas filter. The noise-reducing tail gas filter comprises a filter box (1), a fire extinguisher (7) and a silencer (8). A filter screen (2) and a ceramic honeycomb carrier (3) are arranged in the filter box (1), a silencing tube (9) is arranged in the filter box (1), and a branch tube (10) with holes on the wall is arranged on the silencing tube (9). According to the noise-reducing tail gas filter provided by the invention, firstly, under the action of the silencer and the fire extinguisher, noise is reduced and the fire is extinguished; then acidic components in the tail gas are eliminated by means of sodium carbonate water mist; and finally, under two-stage filtration of the filter screen and the ceramic honeycomb carrier, tail gas, the main components of which are CO, HC and NOx, is reacted to form CO2, H2O, N2 and O2, and meanwhile, micropores in the isolating walls can effectively filter black smoke particles which can be combusted under the action of a catalyst coating, so that the tail gas purifying effect is further improved; and meanwhile, the filter is good in silencing effect.

Description

technical field [0001] The invention relates to a noise-reducing exhaust gas filter, which is used for purifying the exhaust gas of automobiles. It belongs to the technical field of automobile equipment. Background technique [0002] At present, ordinary automobile exhaust filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to form CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; the existing tail gas silencer is It is realized by setting the sound-absorbing sheet, but the sound-absorbing sheet is easy to loosen and fall off, and it is difficult to achieve a good sound-absorbing effect. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned defici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/033F01N3/035F01N3/06F01N3/022F01N13/02
Inventor 华玉娣
Owner 华玉娣
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