Device capable of extracting and collecting automobile exhaust particle blockages

Abstract

The invention relates to a device capable of extracting and collecting automobile exhaust particle blockages, which is connected with an automobile particle trapper and can be used for extracting and collecting the automobile exhaust particle blockages when an automobile engine is in a flameout state. Particle blockages at the front end of a filter screen in the automobile particle catcher are sucked into the negative pressure tank through the air negative pressure of the negative pressure tank in the device, and then the particle blockages in the negative pressure tank are collected into the air filter particle collector on the negative pressure tank through high-pressure air. And in the negative pressure extraction process, the airflow direction in the automobile particle catcher is opposite to the tail gas flowing direction when the automobile engine works.

Description

Technical Field

[0001] The present invention relates to a device capable of extracting and collecting automobile exhaust particle blockages. The device is connected to an automobile particle trap, and the air negative pressure of a negative pressure tank in the device is used to suck out the particle blockages at the front end of a filter screen in the automobile particle trap. Then, the high-pressure air is used to collect the particle blockages into an air filter particle collector on the negative pressure tank. Background Art

[0002] Under the background of continuously improving automobile emission standards, the automobile exhaust emission system has increased the installation requirements of the particle trap. However, while the particle trap captures particulate matter, it also brings the disadvantage that the particle trap is easily blocked. In order to solve the problem of particle trap blockage, the current method is to increase the engine speed for a long time, or even spray fuel for combustion to regenerate. This is not only not environmentally friendly, but also brings damage to the vehicle and potential safety hazards. In order to extend the regeneration cycle mentioned above, it is hoped that these methods can be replaced. The present invention designs a negative pressure tank, which is evacuated to a negative pressure in the negative pressure tank by a vacuum pump. When the vehicle is in the off state, the negative pressure in the negative pressure tank is used to absorb the blockages in the filter of the automobile particulate trap from the front end of the automobile particulate trap. These blockages include not only carbon particles, but also incombustible ash. Moreover, after each driving is completed and the vehicle is turned off, the extraction operation can be carried out. After the extraction operation is completed, the high-pressure air introduced at the rear end of the negative pressure tank will blow the particulate matter sucked out of the negative pressure tank into the air filter particle collector of the negative pressure tank. The air filter particle collector can be removed during vehicle maintenance, and the carbon particles can be collected and sold as carbon resources, thereby reducing economic waste and reducing carbon emissions from vehicles. Summary of the invention

[0003] The purpose of the present invention is to solve the drawbacks of the current non-environmentally friendly dredging method for particle trap blockage, and to extract the particle blockage at the front end of the filter screen of the automobile particle trap by a negative pressure suction method, extract the particle blockage into a negative pressure tank, and then blow the particle blockage into an air filter particle collector by high-pressure air. The specific contents are: the negative pressure tank (2) is connected to the front end of the automobile particle trap (1), and a valve (4) is arranged in the middle; the rear end of the negative pressure tank (2) is connected to a vacuum pump (8), and a valve (7) is arranged in the middle; the air filter particle collector (13) is installed on the negative pressure tank (2), and a valve (12) is arranged in the middle; the rear end of the negative pressure tank is installed with an intake pipe (10) that can introduce high-pressure air, and a valve (11) is arranged in the middle of the intake pipe.

[0004] Figure 1 A schematic diagram of the structure of the present invention DETAILED DESCRIPTION

[0005] The present invention is implemented as follows: the vacuum pump (8) is started, the valve (7) is opened, and the air in the negative pressure tank (2) is extracted. When the negative pressure tank (2) reaches the rated negative pressure value, the vacuum pump (8) is stopped and the valve (7) is closed. After the vehicle stops driving and the engine is turned off, the valve (4) is opened, and the negative pressure tank (2) starts to extract the particles inside the filter screen (14) of the automobile particle trap (1). After the extraction is completed, the valve (4) is closed, the vacuum pump (8) is started again, the valve (7) is opened again, and the air in the negative pressure tank (2) is extracted again, and the next extraction of particle blockage is continued. This cycle is repeated. When the extraction reaches the operation requirement, the valve (4) and the valve (7) are closed, the valve (11) and the valve (12) are opened, and the high-pressure air is injected into the negative pressure tank (2) from the intake pipe (10) and filtered out from the air filter particle collector (13), and the particles are retained in the air filter particle collector (13). The air filter particle collector (13) is detachable and can be cleaned or replaced.

Claims

1. A device for extracting and collecting tail gas particle blockages, comprising a negative pressure tank (2) and a vacuum pump (8), characterized in that: The air negative pressure in the negative pressure tank (2) is used to extract the particle blockage in the automobile particle trap (1) and then collect it.

2. A device for extracting and collecting exhaust gas particle blockage according to claim 1, characterized in that The front end of the negative pressure tank (2) is connected to the air inlet end of the automobile particle trap (1) through a pipeline (3), and a valve (4) is arranged in the middle section of the pipeline (3).

3. A device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that A filter screen (5) is arranged inside the negative pressure tank (2).

4. A device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that The rear end of the negative pressure tank (2) is provided with an air outlet (6).

5. The device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that The gas outlet (6) and the vacuum pump (8) are connected via a valve (7).

6. The device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that The negative pressure tank (2) has a sealing cover (9).

7. The device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that An air filter particle collector (13) is installed at the front end of the negative pressure tank (2), and a valve (12) is installed between the negative pressure tank (2) and the air filter particle collector (13).

8. The device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that The air filter particle collector (13) is detachable.

9. The device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that An air inlet pipe (10) is installed at the rear end of the negative pressure tank (2), and a valve (11) is arranged in the middle section of the air inlet pipe (10).

10. The device for extracting and collecting tail gas particle blockage according to claim 1, characterized in that The negative pressure tank (2) has a shell (15).

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