CN215890136U

CN215890136U - DPF assembly structure

Info

Publication number: CN215890136U
Application number: CN202122141834.2U
Authority: CN
Inventors: 管其兵; 殷桂权; 朱玉星
Original assignee: Wuxi Weifu Lida Catalytic Converter Co Ltd
Current assignee: Wuxi Weifu Lida Catalytic Converter Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-22
Anticipated expiration: 2031-09-06

Abstract

The utility model provides a DPF assembly structure, which comprises a cylinder body, wherein a DPF carrier is arranged in the cylinder body, and a first differential pressure air taking pipe and a second differential pressure air taking pipe are arranged outside the cylinder body; one end of the first differential pressure gas taking pipe is communicated with the cylinder body through a first gas taking pipe base so as to take gas from the cylinder body; one end of the second differential pressure gas taking pipe is communicated with the cylinder body through a second gas taking pipe base so as to take gas from the cylinder body; the first air taking pipe base and the second air taking pipe base are arranged on the outer wall of the barrel and start to incline upwards from the connecting end of the barrel. This DPF subassembly structure is through getting in the liquid refluence of trachea base in with the initiating terminal back the barrel, prevents that the vehicle from freezing the condition to appear in the liquid that negative angle department deposited when the driving in cold district or winter, leads to the problem that differential pressure sensor monitoring data became invalid.

Description

DPF assembly structure

Technical Field

The utility model belongs to the technical field of structural design of tail gas post-treatment equipment, and particularly relates to a DPF assembly structure.

Background

In the diesel exhaust aftertreatment multiple technology route, the DPF aftertreatment route is adopted, which requires collecting the gas pressure at both ends of the DPF carrier (particulate collector). However, due to the influence of the boundary of the whole vehicle, the post-processing arrangement and other factors, a negative angle exists at the first section of the differential pressure gas taking pipe, and liquid accumulated at the negative angle can be frozen when the vehicle runs in a cold area or in winter, so that the monitoring data of the differential pressure sensor fails.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a DPF assembly structure, which solves the problem that the monitoring data of a differential pressure sensor fails due to low-temperature icing of a differential pressure gas taking pipe in the existing DPF post-treatment. The technical scheme adopted by the utility model is as follows:

a DPF assembly structure comprises a cylinder body, wherein a DPF carrier is arranged in the cylinder body, and a first differential pressure air taking pipe and a second differential pressure air taking pipe are arranged outside the cylinder body;

one end of the first differential pressure gas taking pipe is communicated with the cylinder body through a first gas taking pipe base so as to take gas from the cylinder body;

one end of the second differential pressure gas taking pipe is communicated with the cylinder body through a second gas taking pipe base so as to take gas from the cylinder body;

the first air taking pipe base and the second air taking pipe base are arranged on the outer wall of the barrel and start to incline upwards from the connecting end of the barrel.

Further, the first air intake pipe base and the second air intake pipe base are respectively arranged at two ends of the DPF carrier, and the first differential pressure air intake pipe connected with the first air intake pipe base is used for collecting air pressure at one end of the DPF carrier; and the second differential pressure gas taking pipe connected with the second gas taking pipe base is used for collecting the gas pressure at the other end of the DPF carrier.

Further, the first air taking pipe base and the second air taking pipe base are obliquely arranged in the middle of the outer side wall of the cylinder body.

Furthermore, the included angles between the first air intake pipe base and the horizontal plane and the included angles between the second air intake pipe base and the horizontal plane are both larger than 0 degree.

Furthermore, the included angle between the first air intake pipe base and the horizontal plane and the included angle between the second air intake pipe base and the horizontal plane are 10 degrees.

Furthermore, the starting end of the first differential pressure gas taking pipe is connected with the first gas taking pipe base through a pipe joint, and the starting end extends along the central axis of the first gas taking pipe base.

The utility model has the advantages that:

this DPF subassembly structure is through getting in the liquid refluence of trachea base in with the initiating terminal back the barrel, prevents that the vehicle from freezing the condition to appear in the liquid that negative angle department deposited when the driving in cold district or winter, leads to the problem that differential pressure sensor monitoring data became invalid.

Drawings

FIG. 1 is a schematic structural diagram of a DPF assembly structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a DPF assembly configuration in an embodiment of the utility model.

FIG. 3 is a partial cross-sectional view of a DPF assembly configuration in an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 and fig. 2, a DPF assembly structure (DPF full-scale particulate filter) according to an embodiment of the present invention includes a cylinder 1, a DPF carrier 2 is disposed in the cylinder 1, and a first differential pressure gas extraction pipe 3 and a second differential pressure gas extraction pipe 4 are disposed outside the cylinder 1; one end of the first differential pressure gas taking pipe 3 is communicated with the cylinder body 1 through a first gas taking pipe base 5 so as to take gas from the cylinder body 1; one end of the second differential pressure gas taking pipe 4 is communicated with the cylinder body 1 through a second gas taking pipe base 6 so as to take gas from the cylinder body 1; the first air intake pipe base 5 and the second air intake pipe base 6 are installed on the outer wall of the barrel body 1 and incline upwards from the connecting end with the barrel body 1.

Specifically, the first air intake pipe base 5 and the second air intake pipe base 6 are respectively arranged at two ends of the DPF carrier 2, and the first differential pressure air intake pipe 3 connected with the first air intake pipe base 5 is used for collecting air pressure at one end of the DPF carrier 2; the second differential pressure gas taking pipe 4 connected with the second gas taking pipe base 6 is used for collecting the gas pressure at the other end of the DPF carrier 2.

Specifically, as shown in fig. 2 and 3, the first air intake pipe base 5 and the second air intake pipe base 6 are obliquely installed in the middle of the outer side wall of the barrel 1, and included angles between the first air intake pipe base 5 and the horizontal plane and included angles between the second air intake pipe base 6 and the horizontal plane are both greater than 0 degree.

In some embodiments, the first and second gas extraction pipe bases 5, 6 are at an angle of 10 degrees to the horizontal; the starting end 301 of the first differential pressure gas taking pipe 3 is connected with the first gas taking pipe base 5 through the pipe joint 7, and the starting end 301 extends along the central axis of the first gas taking pipe base 5, after the diesel engine stops working, certain water vapor exists in tail gas remaining in the gas taking pipe (including the first gas taking pipe base 5 and the second gas taking pipe base 6), and the condensed water vapor can flow along the gas taking pipe and the corresponding base (including the first gas taking pipe base 5 and the second gas taking pipe base 6) and finally flows into the barrel body 1.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. A DPF assembly structure comprises a cylinder body (1), wherein a DPF carrier (2) is arranged in the cylinder body (1), and is characterized in that a first differential pressure air intake pipe (3) and a second differential pressure air intake pipe (4) are arranged outside the cylinder body (1);

one end of the first differential pressure gas taking pipe (3) is communicated with the cylinder body (1) through a first gas taking pipe base (5) so as to take gas from the cylinder body (1);

one end of the second differential pressure gas taking pipe (4) is communicated with the cylinder body (1) through a second gas taking pipe base (6) so as to take gas from the cylinder body (1);

the first air intake pipe base (5) and the second air intake pipe base (6) are installed on the outer wall of the barrel body (1) and incline upwards from the connecting end of the first air intake pipe base and the barrel body (1).

2. A DPF assembly structure as in claim 1,

the first air intake pipe base (5) and the second air intake pipe base (6) are respectively arranged at two ends of the DPF carrier (2), and the first pressure difference air intake pipe (3) connected with the first air intake pipe base (5) is used for collecting air pressure at one end of the DPF carrier (2); the second differential pressure gas taking pipe (4) connected with the second gas taking pipe base (6) is used for collecting the gas pressure at the other end of the DPF carrier (2).

3. A DPF assembly structure as in claim 1,

the first air intake pipe base (5) and the second air intake pipe base (6) are obliquely installed in the middle of the outer side wall of the barrel body (1).

4. A DPF assembly structure as in claim 3,

the included angles between the first air intake pipe base (5) and the second air intake pipe base (6) and the horizontal plane are both larger than 0 degree.

5. A DPF assembly structure as in claim 4,

the included angle between the first air intake pipe base (5) and the second air intake pipe base (6) and the horizontal plane is 10 degrees.

6. A DPF assembly structure as in claim 1,

the starting end (301) of the first pressure difference air intake pipe (3) is connected with the first air intake pipe base (5) through a pipe joint (7), and the starting end (301) extends along the central axis of the first air intake pipe base (5).