CN211777666U

CN211777666U - Automobile exhaust chimney with tail gas purification function

Info

Publication number: CN211777666U
Application number: CN202020473863.1U
Authority: CN
Inventors: 韩子林
Original assignee: Jiangsu Hengtai Automobile Parts Co ltd
Current assignee: Jiangsu Hengtai Automobile Parts Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-10-27
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses an automobile exhaust chimney with tail gas purification function, including first body, second body, blast pipe and catalysis bucket, the front end of first body and the rear end fixed connection of second body, the length of the interior circle diameter of second body is longer than the length of the interior circle diameter of first body, the inner wall of second body is provided with first purification catalyst, first purification catalyst is tubulose, the interior circle diameter of first catalysis decontaminating agent is longer than the interior circle diameter of first body, the shape of catalysis bucket is fusiform, and both ends are provided with the opening around and, be provided with second purification catalyst in the catalysis bucket, second purification catalyst is honeycombed, and the size and catalysis bucket match, the front end of second body and the opening fixed connection of catalysis bucket rear end, the rear end of blast pipe and the opening fixed connection of catalysis bucket front end, the front surface of blast pipe is the inclined plane, the utility model discloses it is small, the area of catalyst is big, can handle a large amount of harmful gas fast, reduces harmful gas's discharge.

Description

Automobile exhaust chimney with tail gas purification function

Technical Field

The utility model relates to an auto-parts field specifically is an automobile exhaust chimney with tail gas purification function.

Background

With the continuous development of economy in China and the popularization of motor vehicles, almost every family at present has one automobile, in recent years, city motor vehicles grow rapidly, waste gas discharged by the automobiles is directly discharged without being purified, and serious pollution is caused to air, so that a related technology is urgently needed to solve the problem.

The patent name "CN 201720793513.1" discloses an "automobile exhaust pipe with tail gas filtering capability" and discloses an "automobile exhaust pipe with tail gas filtering capability", including the automobile exhaust pipe body, the air discharge chamber has been seted up to the inside of automobile exhaust pipe body, the fixed intercommunication in right side of automobile exhaust pipe body has the intake pipe, the left side of automobile exhaust pipe body is connected with tail gas filtering and purifying device, and exhaust passage has been seted up to tail gas filtering and purifying device's inside. "

It is also an exhaust pipe for automobiles, but the device cannot treat harmful gases in exhaust gas.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a simple structure, effect are obvious have a tail gas cleanup function's car exhaust chimney.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an automobile exhaust chimney with a tail gas purification function comprises a first pipe body, a second pipe body, an exhaust pipe and a catalysis barrel, wherein the front end of the first pipe body is fixedly connected with the rear end of the second pipe body, the length of the inner circle diameter of the second pipe body is longer than that of the inner circle diameter of the first pipe body, the circle center of the inner circle of the second pipe body and the circle center of the inner circle of the first pipe body are positioned on the same straight line, a first purification catalyst is arranged on the inner wall of the second pipe body and is tubular, the outer wall of the first purification catalyst is fixedly connected with the inner wall of the second pipe body, the length of the inner circle diameter of the first catalysis purifying agent is longer than that of the inner circle diameter of the first pipe body, the catalysis barrel is in a spindle shape, openings are arranged at the front end and the rear end of the catalysis barrel, the opening at the front end of the catalysis barrel is matched with the exhaust pipe, the opening at the rear end of the, the second purifies the catalyst and is honeycombed, and size and catalysis bucket phase-match, the opening fixed connection of the front end of second body and catalysis bucket rear end, the opening fixed connection of the rear end of blast pipe and catalysis bucket front end, and the front surface of blast pipe is the inclined plane.

For making this device more firm, the utility model discloses an improvement has, and the material of first body and second body is the metal, and the connected mode of first body and second body is the welding.

In order to make the first catalyst and the second catalyst resist high temperature, the utility model discloses an improvement has, and first purification catalyst and second purification catalyst are rare earth catalyst.

For make on the better second body of being fixed in of first catalyst, the utility model discloses an improvement has, first purification catalyst outside be provided with first purification catalyst assorted metal protection cover.

For making the metal safety cover not hinder the normal work of first catalyst, the utility model discloses an improvement has, and the metal safety cover of first purification catalyst inner wall is netted.

For make on the better second body of being fixed in of first catalyst, the utility model discloses an improvement has, and the connected mode of first purification catalyst and second body is metal safety cover and second body welded connection.

For making this device more firm, the utility model discloses an improvement has, and the material of catalysis bucket is the metal, and the connected mode of catalysis bucket and second body is the welding.

For making this device more firm, the utility model discloses an improvement has, and the material of blast pipe is the metal, and the connected mode of blast pipe and catalysis bucket is the welding.

(III) advantageous effects

Compared with the prior art, the utility model provides a car exhaust chimney with tail gas purification function possesses following beneficial effect: but the first purification catalyst preliminary treatment automobile exhaust's tail gas in the second body, be about to the harmful gas in the tail gas through the catalysis of first purification catalyst and take place chemical reaction, generate harmless gas, the catalysis of remaining harmful gas through the second purification catalyst in the catalysis bucket in the tail gas produces chemical reaction, generate harmless gas, discharge through the blast pipe, first purification catalyst and second purification catalyst combined action, make the exposed surface area increase of catalyst, make this device can catalyze more harmful gas fast and carry out chemical reaction, make the harmful gas in the exhaust tail gas reduce in a large number, under the equivalent condition of harmful gas, the catalysis bucket of this device can be small than the volume of other tail gas purification device's body, thereby reduce its influence to the automobile body.

Drawings

Fig. 1 is a side view of the present invention;

fig. 2 is a side sectional view of the present invention;

fig. 3 is a schematic view of the back structure of the lower pedal of the present invention.

In the figure: 1. a first pipe body; 2. a second tube body; 3. a catalytic tank; 4. an exhaust pipe; 5. an opening; 6. a second purifying catalyst; 7. a first clean-up catalyst.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an automobile exhaust chimney with tail gas purification function of the present invention comprises a first pipe 1, a second pipe 2, an exhaust pipe 4 and a catalytic barrel 3, wherein the front end of the first pipe 1 is fixedly connected to the rear end of the second pipe 2, the length of the inner circle diameter of the second pipe 2 is longer than that of the inner circle diameter of the first pipe 1, the center of the inner circle of the second pipe 2 and the center of the inner circle of the first pipe 1 are located on the same straight line, the inner wall of the second pipe 2 is provided with a first purifying catalyst 7, the first purifying catalyst 7 is tubular, the outer wall of the first purifying catalyst 7 is fixedly connected to the inner wall of the second pipe 2, the length of the inner circle diameter of the first purifying catalyst 7 is longer than that of the diameter of the first pipe 1, the inner circle 3 of the catalytic barrel is spindle-shaped, and the front and rear ends of the catalytic barrel are provided with openings 5, the openings 5 at the front end of the catalytic barrel 3 are matched with the exhaust pipe 4, opening 5 and the 2 phase-matchs of second body of rear end are provided with second in the catalysis bucket 3 and purify catalyst 6, and second purifies catalyst 6 and is honeycombed, and size and catalysis bucket 3 phase-matchs, and the front end 2 of second body and the 5 fixed connection of opening of the 3 rear ends of catalysis bucket, the rear end of blast pipe 4 and the opening fixed connection of the 3 front ends of catalysis bucket, and the front surface of blast pipe 4 is the inclined plane.

In summary, in the exhaust pipe chimney with exhaust gas purifying function for automobile, when in use, the device is installed at the exhaust port of the automobile, the rear end of the first pipe 1 is connected with the exhaust end of the engine by a conventional connection method, the present invention is not limited in particular, in this embodiment, the first pipe and the exhaust end of the engine are fixed by welding, the exhaust gas generated by the automobile enters the second pipe 2 through the first pipe 1, then enters the catalytic barrel 3, and finally is exhausted from the exhaust pipe 4, the front surface of the exhaust pipe 4 is an inclined surface, so that the exhaust of the exhaust pipe 4 is smoother, in this embodiment, the first pipe 1 and the second pipe 2 are made of metal, the connection method of the first pipe 1 and the second pipe 2 is welding, the catalytic barrel 3 is made of metal, the connection method of the catalytic barrel 3 and the second pipe 2 is welding, the exhaust pipe 4 is made of metal, the connection method of the exhaust pipe 4 and the catalytic barrel 3 is welding, the device is more stable, in other embodiments, other materials and connection modes can be adopted, when the tail gas passes through the device, harmful gases in the tail gas, such as CO, HC and the like, are catalyzed by the first purifying catalyst 7 in the second pipe body 2 and oxidized into harmless gases, such as carbon dioxide, water and the like, because the first purifying catalyst 7 is tubular, the flow of the tail gas is not obstructed, but the first purifying catalyst 7 does not contact with all harmful gases, so residual harmful gases are generated, in the embodiment, a metal protective cover matched with the first purifying catalyst 7 is arranged outside the first purifying catalyst 7, the metal protective cover on the inner wall of the first purifying catalyst 7 is net-shaped, the connection mode of the first purifying catalyst 7 and the second pipe body 2 is that the metal protective cover is welded with the second pipe body 2, so that the first purifying catalyst 7 is fixedly connected on the inner wall of the second pipe body 2 under the premise of normal operation, in other embodiments, the catalyst can be freely arranged, the harmful gas remaining in the exhaust gas is oxidized into the harmless gas through the catalysis of the second purification catalyst 6 in the catalysis barrel 3, in the embodiment, the first purification catalyst 7 and the second purification catalyst 6 are both rare earth catalysts, so that the catalyst is more resistant to high temperature, in other embodiments, other types of catalysts can be adopted, because the second purification catalyst 6 is in a honeycomb shape, the surface area is increased, most harmful gas can be contacted, and therefore the content of the harmful gas in the exhaust gas is greatly reduced, and the work is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automobile exhaust chimney with a tail gas purification function is characterized by comprising a first pipe body (1), a second pipe body (2), an exhaust pipe (4) and a catalysis barrel (3), wherein the front end of the first pipe body (1) is fixedly connected with the rear end of the second pipe body (2), the length of the inner circle diameter of the second pipe body (2) is longer than that of the inner circle diameter of the first pipe body (1), the circle center of the inner circle of the second pipe body (2) and that of the inner circle of the first pipe body (1) are located on the same straight line, a first purification catalyst (7) is arranged on the inner wall of the second pipe body (2), the first purification catalyst (7) is tubular, the outer wall of the first purification catalyst (7) is fixedly connected with the inner wall of the second pipe body (2), the length of the inner circle diameter of the first purification catalyst (7) is longer than that of the inner circle diameter of the first pipe body (1), the shape of catalysis bucket (3) is fusiform, and both ends all are provided with opening (5) around and, catalysis bucket (3) front end opening (5) with blast pipe (4) phase-match, opening (5) and second body (2) phase-match of rear end are provided with second purification catalyst (6) in catalysis bucket (3), second purification catalyst (6) are honeycomb shape, and size and catalysis bucket (3) phase-match, the front end of second body (2) and opening (5) fixed connection of catalysis bucket (3) rear end, the rear end of blast pipe (4) and opening (5) fixed connection of catalysis bucket (3) front end, and the front surface of blast pipe (4) is the inclined plane.

2. The automobile exhaust chimney with the exhaust gas purification function according to claim 1, characterized in that the first tube (1) and the second tube (2) are made of metal, and the first tube (1) and the second tube (2) are connected by welding.

3. The automobile exhaust pipe with an exhaust gas purifying function according to claim 1, wherein the first purifying catalyst (7) and the second purifying catalyst (6) are both rare earth catalysts.

4. The automobile exhaust pipe with the exhaust gas purifying function according to claim 1, wherein a metal protecting cover matched with the first purifying catalyst (7) is provided outside the first purifying catalyst (7).

5. The exhaust stack for an automobile with an exhaust gas purifying function according to claim 4, wherein the metal protecting cover of the inner wall of the first purifying catalyst (7) is in a net shape.

6. The automobile exhaust pipe with the exhaust gas purifying function according to claim 4, wherein the first purifying catalyst (7) is connected to the second pipe body (2) in such a manner that the metal protecting cover is welded to the second pipe body (2).

7. The automobile exhaust chimney with the tail gas purification function according to claim 1, characterized in that the material of the catalytic barrel (3) is metal, and the connection mode of the catalytic barrel (3) and the second pipe body (2) is welding.

8. The automobile exhaust chimney with the tail gas purification function according to claim 1, characterized in that the exhaust pipe (4) is made of metal, and the exhaust pipe (4) is connected with the catalytic barrel (3) by welding.