WO2019104799A1

WO2019104799A1 - Automobile exhaust purification device

Info

Publication number: WO2019104799A1
Application number: PCT/CN2017/118792
Authority: WO
Inventors: 郑坚雄
Original assignee: 昆山一邦泰汽车零部件制造有限公司
Priority date: 2017-11-30
Filing date: 2017-12-27
Publication date: 2019-06-06
Also published as: CN108223061A

Abstract

Disclosed is an automobile exhaust purification device, comprising a cylinder body (1). An exhaust inlet (11) is provided on one end of the cylinder body (1), and is connected to an air inlet pipe (2). An exhaust outlet (12) is provided on the other end of the cylinder body (1), and is connected to an air outlet pipe (3). An air inlet conical pipe (4) is provided between the air inlet pipe (2) and the cylinder body (1). The exhaust inlet of the cylinder is provided with a filter (5) formed by combining a dense filter net (51) and a coarse filter net (52) which are woven from silicon carbide fibers. A ceramic honeycomb catalyst layer (6) is provided on the rear side of the filter (5). A silencer (7) is provided in one end of the exhaust outlet (12) of the cylinder body (1). A semiconductor cooler (8) is fixedly provided outside the air outlet pipe. The automobile exhaust purification device is simple in structure and low in cost. Air contaminants in the exhaust, such as particulate matter, carbon monoxide, and nitrogen oxide, can be effectively removed by means of filtering and catalysis. An exhaust pipe is provided with the silencer for reducing the sound during the exhaust emission so as to reduce noise pollution. The semiconductor cooler is used for cooling before exhaust emission.

Description

Automobile exhaust gas purifying device

Technical field

The invention relates to an automobile exhaust gas purifying device, belonging to the technical field of automobile spare parts.

Background technique

Car exhaust contains hydrocarbons, nitrogen oxides, carbon monoxide, particulate matter and other pollutants. Direct emission of automobile exhaust gas is very harmful to air quality, especially now that the number of cars has increased sharply, and exhaust emissions have also increased. In addition to chemical substances and particulate matter, air pollution in automobile exhaust gas also causes noise pollution when exhaust gas is emitted. The temperature of exhaust gas is high, which aggravates the trend of climate warming. Therefore, it is necessary to purify automobile exhaust gas.

Summary of the invention

Purpose: In order to overcome the deficiencies in the prior art, the present invention provides an automobile exhaust gas purification device.

Technical Solution: In order to solve the above technical problems, the technical solution adopted by the present invention is:

The utility model relates to an automobile exhaust gas purifying device, which comprises a cylinder body, wherein one end of the cylinder body is provided with an exhaust gas inlet, which is connected with the air inlet pipe, and the other end of the cylinder body is provided with an exhaust gas outlet, which is connected with the air outlet pipe; and the inlet pipe and the cylinder body are provided with a gas cone tube, a filter is arranged at the inlet of the cylinder exhaust gas, the filter is formed by a combination of a dense filter mesh woven with silicon carbide fibers and a coarse filter mesh; a honeycomb ceramic catalytic layer is arranged on the rear side of the filter; A silencer is arranged inside one end of the exhaust gas outlet, and a semiconductor refrigeration sheet is fixed outside the gas outlet pipe.

Further, the combined order of the dense filter and the coarse filter is a coarse filter, a dense filter, a dense filter, and a coarse filter.

Further, the dense filter and the coarse filter are foldable.

Further, the muffler comprises two parallel partitions, and the partition is provided with a through hole, and a cylindrical cylinder is fixed between the partitions.

Further, the inner and outer walls of the cylindrical cylinder are coated with a sound absorbing coating.

Further, the honeycomb ceramic catalytic layer comprises a honeycomb ceramic block, the honeycomb ceramic block is covered with small holes, and the inner wall of the small holes is coated with a catalyst.

Advantageous Effects: The automobile exhaust gas purifying device provided by the invention has the advantages of simple structure and low cost, and can effectively remove air pollutants such as particulate matter, carbon monoxide and nitrogen oxides in the exhaust gas through filtration and catalysis; and a muffler is arranged in the exhaust pipe to discharge exhaust gas Silence treatment is performed to reduce noise pollution; the semiconductor refrigeration sheet is used for cooling treatment before exhaust gas is discharged.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is a schematic view of the structure of the filter.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

In the present embodiment, the intake direction of the reference exhaust gas is from the front to the rear.

As shown in FIG. 1 , an automobile exhaust gas purifying device comprises a cylinder body 1. One end of the cylinder body is provided with an exhaust gas inlet 11 connected to the intake pipe 2, and the other end of the cylinder body is provided with an exhaust gas outlet 12 connected to the gas outlet pipe 3.

An intake cone tube 4 is disposed between the intake pipe 2 and the cylinder body 1 to increase the intake air area; a filter 5 is disposed at the inlet of the cylinder exhaust gas, and the filter 5 is densely filtered by SiC fiber. The mesh 51 and the coarse filter 52 are combined, and the combined order of the dense filter 51 and the coarse filter 52 is a coarse filter 52, a dense filter 51, a dense filter 51, and a coarse filter 52, as shown in FIG. The coarse filter and the dense filter are used to reduce surface clogging; the dense filter and the coarse filter are foldable, and the contact area between the exhaust gas and the filter is increased after folding, thereby improving the filtering effect.

The back side of the filter 5 is provided with a honeycomb ceramic catalytic layer 6, the honeycomb ceramic catalytic layer comprises a honeycomb ceramic block, the honeycomb ceramic block is covered with small holes, and the inner wall of the small hole is coated with a catalyst.

One end of the cylinder provided with the exhaust gas outlet is internally provided with a muffler 7, and the muffler comprises two parallel partitions 71. The partition plate is provided with a through hole, and a cylindrical cylinder 72 is fixed between the partition plates. The inner and outer walls of 72 are coated with a sound absorbing coating. A semiconductor refrigerating sheet 8 is fixedly disposed outside the air outlet pipe 3 for cooling the exhaust gas.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

The utility model relates to an automobile exhaust gas purifying device, which comprises a cylinder body, wherein one end of the cylinder body is provided with an exhaust gas inlet and is connected with the air inlet pipe, and the other end of the cylinder body is provided with an exhaust gas outlet and is connected with the air outlet pipe, wherein the air intake pipe and the cylinder body are There is an inlet cone tube, and a filter is arranged at the inlet of the cylinder exhaust gas, the filter is formed by a combination of a dense filter mesh woven with silicon carbide fibers and a coarse filter mesh; and the honeycomb ceramic is arranged on the rear side of the filter. a catalytic layer; a silencer is arranged inside one end of the cylinder with a tail gas outlet, and a semiconductor refrigeration sheet is fixed outside the gas outlet pipe.
The automobile exhaust gas purifying apparatus according to claim 1, wherein the combined order of the dense filter and the coarse filter is a coarse filter, a dense filter, a dense filter, and a coarse filter.
The automobile exhaust gas purifying apparatus according to claim 1, wherein said dense filter and said coarse filter are foldable.
The automobile exhaust gas purifying apparatus according to claim 1, wherein said muffler comprises two parallel partitions, and the partition is provided with a through hole, and a cylindrical cylinder is fixed between the partitions.
The automobile exhaust gas purifying apparatus according to claim 4, wherein the inner and outer walls of the cylindrical cylinder are coated with a sound absorbing coating.
The automobile exhaust gas purifying apparatus according to claim 1, wherein the honeycomb ceramic catalytic layer comprises a honeycomb ceramic block, the honeycomb ceramic block is covered with small holes, and the inner wall of the small holes is coated with a catalyst.