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Automobile emission inhalable particulate matter removing device

A technology for automobile exhaust and particulate matter, which is applied in the direction of exhaust devices, noise reduction devices, engine components, etc., can solve the difficult and complex problems of removing inhalable particulate matter from automobile exhaust, and achieves improved thermophoretic deposition efficiency, low cost, and wide application The effect of market prospects

Inactive Publication Date: 2005-06-29
TSINGHUA UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is very complicated and difficult to apply to engineering practice, especially to remove inhalable particulate matter from automobile exhaust

Method used

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  • Automobile emission inhalable particulate matter removing device
  • Automobile emission inhalable particulate matter removing device

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Embodiment Construction

[0008] The specific structure, working process and best implementation mode of the present invention will be further described below in conjunction with the accompanying drawings.

[0009] figure 1 It is a structural schematic diagram of the vehicle exhaust inhalable particulate matter removal device provided by the present invention. The device is composed of a group of thermophoresis working sections 1 and upper and lower cascade boxes 2 arranged in parallel; The inlet and outlet of the two parallel thermophoresis working sections are connected; the outer wall of the thermophoresis working section is cooled by cold air to maintain a lower wall temperature of the tube wall, and the inhalable particles in the high-temperature exhaust gas in the tube will be heated Deposited on the wall of the thermophoresis working tube under the action of swimming. Exhaust gas containing respirable particles enters the first-stage thermophoresis working section. Under the action of the temp...

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Abstract

The utility model relates to a device for removing inhalable particles of automobile tail gas, which belongs to a device for removing ultrafine particles in the car tail gas. The device is composed of a group of parallel arranged thermophoresis working sections and upper and lower cascade boxes; The inlet and outlet of the thermophoresis working section are connected. The cold air outside the car is used to cool the pipe wall of the thermophoresis working section, and the inhalable particles contained in the exhaust gas will be deposited on the inner wall of the thermophoresis working section pipe due to the thermophoresis effect caused by the temperature difference. The invention utilizes the non-fully developed flow effect, and under the action of the thermophoretic effect, the thermophoretic deposition efficiency is continuously advanced in each link, and finally achieves a higher total deposition efficiency, and has the advantages of low construction and operation costs, convenient implementation, and controllability. The advantage of simplicity; efficient removal of inhalable particulate matter can be achieved under different installation conditions.

Description

technical field [0001] The invention relates to a device for removing inhalable particulate matter from automobile exhaust, specifically, the cold air outside the automobile is used to cool the pipe wall passing through the exhaust gas, and the inhalable particulate matter contained in the exhaust gas is heated by temperature difference. Swimming effect, will be deposited on the inner wall surface of the working pipe section, a new type of device to realize the removal of inhalable particulate matter in automobile exhaust gas, belonging to the technical field of automobile exhaust gas purification or dust removal. Background technique [0002] With the increasing number of automobiles in big cities, inhalable particulate matter (PM2.5) in automobile exhaust has risen to become one of the main sources of environmental pollution. Its removal has also become an international problem. Some existing exhaust gas purifiers use adsorption or chemical reaction principles to remove h...

Claims

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Application Information

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IPC IPC(8): F01N3/02
Inventor 杨瑞昌周涛赵磊刘若雷
Owner TSINGHUA UNIV
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