CN210460817U

CN210460817U - Disassembly-free washing particle catcher

Info

Publication number: CN210460817U
Application number: CN201921159437.4U
Authority: CN
Inventors: 陈鹏; 臧志成; 陆立井; 邵祥; 杨合恒; 徐睿
Original assignee: Kailong High Technology Co Ltd
Current assignee: Kailong High Technology Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-05
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses an exempt from to dismantle washing particle trap, it includes the particle trap of vertical installation, wherein, particle trap's bottom is connected with the oxidation catalyst converter, particle trap's top is connected with exhaust pipe, be provided with the air inlet on the lateral wall of oxidation catalyst converter, install washing particle filter end flange on the bottom of oxidation catalyst converter, can seal installation selectively on the washing particle filter end flange have washing particle filter end stop hole flange or washing particle filter. The disassembly-free washing particle catcher can realize the maintenance of clearing soot on the particle catcher without disassembling the main body of the particle catcher, and has simple structure and convenient operation; the cleaning efficiency of the particle catcher is greatly improved; the cleaning cost is reduced.

Description

Disassembly-free washing particle catcher

Technical Field

The utility model belongs to motor vehicle exhaust processing technique especially relates to a exempt from to dismantle washing particle trap for diesel engine exhaust emission handles.

Background

With the increase of the total value of domestic production, the quantity of domestic motor vehicles is gradually increased. However, with the increase of motor vehicles, the problem of exhaust pollution caused by the motor vehicles is gradually revealed, and data show that the particulate matter emission of the motor vehicles accounts for about 30% of the total emission. The engine of the same discharge capacity, diesel engine particulate matter discharge is 30 ~ 80 times that the gasoline engine discharged, reduces the diesel engine particulate matter and discharges and take place to reducing "haze" phenomenon, improve resident's health and have important meaning.

The Diesel Particulate Filter (DPF) can effectively reduce the emission of diesel particulate matters, the filtering efficiency of the DPF on the diesel particulate matters reaches 95%, and the DPF is gradually applied in China at present. When the DPF is used, the exhaust back pressure of the diesel engine is increased with the gradual increase of particulate matter, and the intake air amount is decreased, which eventually deteriorates the combustion of the diesel engine, lowers the vehicle dynamic performance, and deteriorates the fuel economy. Therefore, when the DPF is used, it is necessary to clean the particulate matter, that is, to regenerate the DPF, when a large amount of particulate matter is accumulated. The regeneration modes commonly used at present are thermal regeneration and manual maintenance regeneration. The thermal regeneration mainly comprises various modes such as tail pipe injection regeneration, combustor regeneration, electric heater regeneration, in-cylinder post-injection regeneration and the like, and the thermal regeneration can be carried out without disassembling the DPF. However, due to the failure of the diesel engine or the use of diesel oil, the thermal regeneration DPF is often blocked, and at this time, the regeneration of the DPF can be performed only by manual maintenance methods such as high-pressure air blowback or water washing (or addition of other additives).

Water washing regeneration can not lead to DPF carrier to damage, and the particulate matter when regenerating gets rid of efficiently, except clearance diesel engine particulate matter, still can wash the ash content that is difficult to be regenerated by heat simultaneously, has obtained a small amount of applications on five diesel vehicle DPF in the country at present. However, in order to ensure the efficiency of particulate matter cleaning, the DPF section is usually detached from the vehicle for offline maintenance. Since the particle catcher is heavy and often has thermal insulation thereon, each disassembly and maintenance takes a lot of time, thereby affecting the product use of users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exempt from to dismantle washing particle trap to need follow the vehicle when solving among the prior art particle trap maintenance washing and dismantle the problem of wasing again after getting off.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a dismantle-free washing particle trap, its includes the particle trap of vertical installation, wherein, the bottom of particle trap is connected with the oxidation catalyst converter, the top of particle trap is connected with exhaust pipe, be provided with the air inlet on the lateral wall of oxidation catalyst converter, install washing particle filter end flange on the bottom of oxidation catalyst converter, can seal installation selectively on the washing particle filter end flange has washing particle filter end plug hole flange or washing particle filter.

Particularly, a first sensor seat is installed on the side wall of the oxidation catalyst close to the air inlet of the oxidation catalyst, and a DOC front temperature sensor is installed on the first sensor seat.

In particular, the bottom end of the particle trap is provided with a second sensor seat, and the second sensor seat is provided with a DPF front temperature sensor.

In particular, both ends of the particle trap are connected to the oxidation catalytic converter and the exhaust line via DPF section connecting flanges.

In particular, an air inlet connecting flange is arranged on the air inlet.

Particularly, the parts of the particle catcher close to the two ends are provided with DPF pressure difference air guide pipes.

Particularly, the DPF pressure difference air guide pipe is intensively arranged on an air guide pipe fixing seat, and the air guide pipe fixing seat is fixed on the exhaust pipeline.

Compared with the prior art, the disassembly-free washing particle catcher has the advantages that the soot cleaning maintenance can be carried out on the particle catcher under the condition that the main body of the particle catcher is not disassembled, the structure is simple, and the operation is convenient; the cleaning efficiency of the particle catcher is greatly improved; the cleaning cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a disassembly-free water-washing particle catcher according to an embodiment of the present invention in a normal operating state;

fig. 2 is a schematic structural view of the disassembly-free water-washing particle catcher in a maintenance and cleaning state according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 and 2, in the present embodiment, a disassembly-free water-washing particulate trap includes a vertically installed particulate trap 1, a bottom end of the particulate trap 1 is connected to a vertically disposed oxidation catalyst 3 through a DPF section connecting flange 2, a top end of the particulate trap 1 is connected to a vertically disposed exhaust pipe 4 through the DPF section connecting flange 2, the particulate trap 1, the central lines of the oxidation catalytic converter 3 and the exhaust pipeline 4 are positioned on the same vertical line, an air inlet is formed in the side wall of the oxidation catalytic converter 3, an air inlet connecting flange 5 is arranged on the air inlet, a first sensor seat 6 is installed on the side wall, close to the air inlet, of the oxidation catalytic converter 3, a DOC front temperature sensor is installed on the first sensor seat 6, a second sensor seat 7 is installed at the bottom end of the particle trap 2, and a DPF front temperature sensor is installed on the second sensor seat 7.

Install washing particle filtration end flange 8 on oxidation catalyst converter 3's the bottom, can selectively seal installation have washing particle filtration end stop hole flange 9 or washing particle filter 10 on washing particle filtration end flange 8, and the part that is close to both ends on the particle trap 1 all installs DPF pressure difference air duct 11, and DPF pressure difference air duct 11 is concentrated and is installed on air duct fixing base 12, and air duct fixing base 12 is fixed in on exhaust pipe 4.

When the engine exhaust pipe normally works, the engine exhaust pipe is connected with the particle trap system through the air inlet connecting flange 5, and exhaust enters the particle trap system and then flows through the oxidation catalyst 3 and the particle trap 1 respectively, and finally is exhausted through the exhaust pipeline 4. The device is also provided with a temperature sensor before DOC, a temperature sensor before DPF, and a sensor for installing and arranging a pressure difference gas-guide tube 11 of DPF for monitoring the aftertreatment state. During normal operation, the bottom end of the oxidation catalyst 3 is sealed by the water washing particle filtering end hole plugging flange 9. When carrying out the washing and maintaining, installation washing particle filter 10 is used for replacing washing particle filter end shutoff hole flange 9, and washing particle filter is the higher relatively lower particle trap of cost of filtration efficiency or bag filter, can concentrate the collection to the particulate matter, lets in the washing liquid from the top of exhaust pipe 4, utilizes the pressure of water, washes the deposit particulate matter in the particle trap 1. During washing, the washing waste liquid that has the particulate matter receives the effect of gravity, flows to washing particle filter 10 department, and washing particle filter 10 filters the particulate matter, when waiting to collect sufficient particulate matter, can concentrate the particulate matter and bury or burn the processing, avoids the leakage pollution of particulate matter. After the washing is finished, the water washing particle filter 10 can be collected in a centralized manner, and a certain amount of water washing particle filter 10 can be collected and heated and regenerated in a high-temperature kiln at high temperature, so that the water washing particle filter 10 can be reused.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wash particle trap exempts from to dismantle, its includes the particle trap of vertical installation, its characterized in that, particle trap's bottom is connected with the oxidation catalyst converter, particle trap's top is connected with exhaust pipe, be provided with the air inlet on the lateral wall of oxidation catalyst converter, install wash particle filter end flange on the bottom of oxidation catalyst converter, can seal installation selectively on the wash particle filter end flange has wash particle filter end plugging flange or wash particle filter.

2. The non-dismantling water-washed particle trap as defined in claim 1 wherein a first sensor mount is mounted on a side wall of said oxidation catalyst adjacent to an air inlet thereof, said first sensor mount having a pre-DOC temperature sensor mounted thereon.

3. The non-dismantling water washed particulate trap as defined in claim 2 wherein a second sensor mount is mounted to a bottom end of said particulate trap, said second sensor mount having a pre-DPF temperature sensor mounted thereto.

4. The non-dismantling water washed particulate trap as defined in claim 1 wherein both ends of the particulate trap are connected to the oxidation catalyst and the exhaust pipe, respectively, via DPF segment connecting flanges.

5. The non-dismantling water-washed particle trap as defined in claim 1 wherein said air inlet is provided with an air inlet connecting flange.

6. The non-dismantling water washed particulate trap as defined in claim 1 wherein the particulate trap is provided with a DPF differential pressure air duct at a portion thereof adjacent to both ends thereof.

7. The disassembly-free water-washed particle trap as recited in claim 6, wherein the DPF pressure-difference air duct is centrally installed on an air duct fixing seat, and the air duct fixing seat is fixed on the exhaust duct.