CN217367628U

CN217367628U - Automobile exhaust filtering and purifying device

Info

Publication number: CN217367628U
Application number: CN202221091689.XU
Authority: CN
Inventors: 任悦
Original assignee: Wuhan Aogu Intelligent Technology Co ltd
Current assignee: Wuhan Aogu Intelligent Technology Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-09-06
Anticipated expiration: 2032-04-26

Abstract

The utility model provides an automobile exhaust filters purifier, can filter the dust that the granule size is different in grades, and it is with strong points to filter, through leading filter, prefilter and main filter, divide tertiary filtration purification treatment automobile exhaust, be applicable to various pollution, have peculiar smell, harmful gas's filtration environment, can directly absorb chemical substance, smog, peculiar smell, dust that various internal-combustion engines burning produced and purify, discharge harmless, colourless, tasteless air; the pre-filter is arranged, so that the air resistance is small, the oil filtering effect is good, and the use cost is low; the pre-filter is arranged, so that the filtering time is prolonged, and in addition, the filtering grade of the filter cotton in the pre-filter adopts an incremental design, so that the service life of the main filter is prolonged; the main filter is arranged, so that the filtering rate of particles can be improved, and harmful gas in gas can be effectively removed.

Description

Automobile exhaust filtering and purifying device

Technical Field

The utility model relates to an automobile exhaust handles technical field, especially relates to an automobile exhaust filtering and purifying device.

Background

Chinese patent CN206707815U discloses an automobile exhaust purifying and filtering device, relate to automobile exhaust and handle technical field, contain the joint, leading filter, the connecting tube, the water separator, exhaust treatment device, dust filter, flow detector, the pump body, tail gas purifier, purifying agent is sent into pipe and blast pipe, the joint downside is provided with leading filter, leading filter installs on the connecting tube, and be provided with the water separator on the connecting tube, the water separator is installed in exhaust treatment device, and the water separator right side is provided with dust filter, be provided with flow detector between water separator and the dust filter, the dust filter right side is provided with the pump body, the pump body right side is provided with tail gas purifier, tail gas purifier upside is provided with purifying agent and sends into the pipe, tail gas purifier right side is provided with the blast pipe. This automobile exhaust purifies filter equipment is rational in infrastructure, with low costs, functional good, has dehumidification, filtration and purification performance simultaneously for harmful substance in the automobile exhaust discharges and obtains effective control, has reduced the pollution of tail gas to the air, is applicable to all kinds of cars.

The above-mentioned device discloses a technical scheme through leading filter, dust filter and tail-gas clean-up ware multistage filtration purification automobile exhaust, adopts above-mentioned device although can the effective control harmful substance in the automobile exhaust, reduces automobile exhaust to the pollution of air, but has following technical problem: in the filtering and purifying process of the automobile exhaust, the dust filter needs to filter dust with different particle sizes simultaneously, on one hand, the effect of the dust filter cannot be better exerted because the filtering object of the dust filter has no pertinence, on the other hand, along with the process of filtering and purifying the automobile exhaust, the dust with larger particles can continuously abrade the active carbon filter screen in the dust filter, the filtering rate of the active carbon filter screen to the dust with smaller particles is reduced, the filtering efficiency and the service life of the dust filter are reduced, and the condition is not allowed to occur in the actual operation process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an automobile exhaust filtering purification device can filter the different dust of granule size in grades, filters with strong points.

The technical scheme of the utility model is realized like this: the utility model provides an automobile exhaust filtering and purifying device, which comprises an exhaust joint, an exhaust processing device and an air draft system, wherein,

the tail gas joint is used for communicating a tail gas pipeline of an automobile with a gas inlet of a tail gas treatment device;

the exhaust system is communicated with the air outlet of the tail gas treatment device;

the tail gas treatment device comprises a pre-filter, a pre-filter and a main filter, wherein,

the pre-filter is fixed on the tail gas treatment device and connected with the tail gas joint;

the pre-filter is fixed in the tail gas treatment device and communicated with the pre-filter, the pre-filter comprises a first filter cotton, a second filter cotton and a third filter cotton, wherein,

the filtering precision of the first filtering cotton, the second filtering cotton and the third filtering cotton is sequentially increased, and the first filtering cotton, the second filtering cotton and the third filtering cotton are sequentially arranged along the airflow direction;

a main filter fixed in the tail gas treatment device and communicated with the pre-filter, the main filter comprises a particle filter layer and a chemical filter layer, wherein,

the particle filtering layer and the chemical filtering layer are arranged along the airflow direction in sequence.

On the basis of the technical scheme, preferably, the pre-filter adopts a carbon powder oil mist filter device, and the filtering precision is 99.5%.

On the basis of the technical scheme, preferably, the prefilter is of an organ-shaped cloth bag type structure and is formed by compounding a D3 type 1um spherical fiber material and a D3 type 5um spherical fiber material in a twisting mode.

On the basis of above technical scheme, it is preferred, first filter pulp is used for filtering the granule that the granule size is 1 ~ 10um, and the filter fineness is 99.5%.

On the basis of above technical scheme, it is preferred that the second filter pulp is used for filtering the granule that the granule size is 0.5 ~ 1um, and the filter fineness is 99.8%.

On the basis of the technical scheme, preferably, the third filter cotton is used for filtering particles with the particle size of 0.05-0.5 um, and the filtering precision is 99.8%.

On the basis of the technical scheme, preferably, the pre-filter and the main filter are sequentially arranged in the tail gas treatment device from bottom to top.

Still further preferably, the particle filtering layer and the chemical filtering layer are arranged in the main filter from bottom to top in sequence.

On the basis of the technical scheme, preferably, the particle filtering layer adopts a HEPA active carbon filter screen, and the filtering precision is 99.8%.

On the basis of the technical scheme, preferably, the model of the chemical filter layer is HEPA-D33, and the filter precision is 99.8%.

The utility model discloses an automobile exhaust filtering and purifying device has following beneficial effect for prior art:

(1) the automobile exhaust is filtered and purified in three stages through the pre-filter, the pre-filter and the main filter, so that the automobile exhaust purifying device is suitable for various filtering environments with pollution, peculiar smell and harmful gas, can directly absorb and purify chemical substances, smoke, peculiar smell and dust generated by combustion of various internal combustion engines, and discharges harmless, colorless and tasteless air;

(2) the carbon powder oil mist filtering device is arranged as a pre-filter, has good adhesion and interception effects on gas existing in a molecular form, and has the characteristics of small wind resistance, good oil filtering effect and low use cost;

(3) the pre-filter which is provided with the organ-shaped cloth bag type structure and is formed by compounding a plurality of spherical fiber materials has the characteristics of small wind resistance and large dust capacity, and prolongs the filtering time;

(4) the main filter consisting of the particle filter layer and the chemical filter layer is arranged, so that the filtering rate of particles can be improved, and harmful gases in gases can be effectively removed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the automobile exhaust filtering and purifying device of the present invention;

FIG. 2 is a schematic structural view of a prefilter according to the present invention;

fig. 3 is a working principle diagram of the tail gas treatment device of the present invention.

In the figure: 1. a tail gas joint; 2. a tail gas treatment device; 21. a pre-filter; 22. a pre-filter; 221. first filter cotton; 222. second filter cotton; 223. third filter cotton; 23. a main filter; 231. a particulate filtration layer; 232. a chemical filter layer; 3. and (5) an air draft system.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 all belong to the protection scope of the present invention.

As shown in fig. 1-2, the automobile exhaust filtering and purifying device of the present invention comprises an exhaust joint 1, an exhaust processing device 2 and an air draft system 3, wherein,

tail gas connects 1 for the air inlet of the tail gas pipeline and the tail gas processing apparatus 2 of intercommunication car, it is specific, detachable connection between tail gas connects 1 and the tail gas pipeline.

Exhaust system 3 is linked together with tail gas processing apparatus 2's gas outlet for in discharging the automobile exhaust after tail gas processing apparatus 2 handles to the surrounding environment, specifically, exhaust system 3 can adjust exhaust power according to automobile exhaust's emission.

The exhaust gas treatment device 2 comprises a pre-filter 21, a pre-filter 22 and a main filter 23, wherein,

the pre-filter 21 is fixed on the exhaust gas treatment device 2 and connected with the exhaust gas joint 1, and the pre-filter is mainly used for removing smoke dust, heavy metal compounds, lead compounds, black smoke and oil mist in the automobile exhaust.

The pre-filter 22 is fixed in the exhaust gas treatment device 2 and communicated with the pre-filter 21, the pre-filter 22 comprises a first filter cotton 221, a second filter cotton 222 and a third filter cotton 223, the filtering precision of the first filter cotton 221, the second filter cotton 222 and the third filter cotton 223 increases gradually in sequence, and the first filter cotton 221, the second filter cotton 222 and the third filter cotton 223 are arranged in sequence along the airflow direction, and the part is mainly used for removing carbon monoxide, hydrocarbon and oxynitride.

The main filter 23 is fixed in the exhaust gas treatment device 2 and communicated with the pre-filter 22, the main filter 23 comprises a particle filter layer 231 and a chemical filter layer 232, the particle filter layer 231 and the chemical filter layer 232 are sequentially arranged along the airflow direction, and the main filter 23 is mainly used for removing peculiar smell and harmful gases such as sulfur dioxide, odor, formaldehyde and the like in automobile exhaust.

In a preferred embodiment, in order to improve the adhesion and interception of the pre-filter 21 to the gas existing in molecular form, the pre-filter 21 adopts a carbon powder oil mist filtering device, and the filtering precision is 99.5%.

As a preferred embodiment, the pre-filter 22 is in an organ-shaped cloth bag type structure, and is formed by combining D3 type 1um spherical fiber materials and D3 type 5um spherical fiber materials in a twisting manner, the filtering distance of the pre-filter 22 can be increased by folding and stretching, the filtering time of the pre-filter 22 is prolonged, and the length of the pre-filter 22 can be adjusted to be matched with the size of the exhaust gas treatment device 2 by folding and stretching, so that the installation and the disassembly of the pre-filter 22 are facilitated.

As a preferred embodiment, in order to ensure that the filtering precision of the first filter cotton 221 meets the use requirement, the first filter cotton 221 is used for filtering particles with a particle size of 1-10 um, the filtering precision is 99.5%, and specifically, the model of the first filter cotton 221 is GC 600-D3.

As a preferred embodiment, in order to improve the filtering precision of the second filter cotton 222 to meet the use requirement, the second filter cotton 222 is used for filtering particles with a particle size of 0.5-1 um, the filtering precision is 99.8%, and specifically, the model of the second filter cotton 222 is GC 600-D30.

As a preferred embodiment, in order to improve the filtering precision of the third filter cotton 223 and meet the use requirement, the third filter cotton 223 is used for filtering particles with a particle size of 0.05-0.5 um, the filtering precision is 99.8%, and specifically, the model of the third filter cotton 223 is GC 600-D33.

In a preferred embodiment, the pre-filter 22 and the main filter 23 are disposed in the exhaust gas treatment device 2 from bottom to top in order to reduce the occupied area.

In order to further reduce the floor space, the particle filter layer 231 and the chemical filter layer 232 are disposed in the main filter 23 from bottom to top.

In a preferred embodiment, in order to improve the filtering effect of the particle filtering layer 231, a HEPA activated carbon filter screen is used as the particle filtering layer 231, the filtering precision is 99.8%, and the HEPA activated carbon filter screen has a good particle filtering rate with a filtering efficiency of 99.8% for particles with a size of 0.3 μm or more.

In a preferred embodiment, in order to improve the filtering effect of the chemical filtering layer 232, the model of the chemical filtering layer 232 is HEPA-D33, and the filtering precision is 99.8%.

The working principle is as follows: as shown in fig. 1-3, the automobile exhaust enters the pre-filter 21 of the exhaust gas treatment device 2 along the exhaust gas joint 1, at this time, the pre-filter 21 removes smoke, heavy metal compounds, lead compounds, black smoke and oil mist in the automobile exhaust, and completes the first filtering and purifying treatment, then the automobile exhaust enters the pre-filter 22 under the driving of the air draft system 3, and passes through the first filter cotton 221, the second filter cotton 222 and the third filter cotton 223 from left to right in sequence, at this time, the pre-filter 22 removes carbon monoxide, hydrocarbons and oxynitrides, and completes the second filtering and purifying treatment, and then the automobile exhaust enters the main filter 23 from bottom to top, and passes through the particulate filter layer 231 and the chemical filter layer 232 in sequence, at this time, the main filter 23 removes sulfur dioxide, odor, formaldehyde and other peculiar smells and harmful gases in the automobile exhaust, and (4) finishing the third purification and filtration treatment, and finally discharging the automobile exhaust subjected to the third filtration and purification treatment to the surrounding environment by the exhaust system 3 to finish the whole filtration and purification treatment work.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile exhaust filtering and purifying device comprises an exhaust joint (1), an exhaust treatment device (2) and an air draft system (3), wherein,

the tail gas joint (1) is used for communicating a tail gas pipeline of an automobile with a gas inlet of a tail gas treatment device (2);

the air exhaust system (3) is communicated with an air outlet of the tail gas treatment device (2);

the method is characterized in that: the exhaust gas treatment device (2) comprises a pre-filter (21), a pre-filter (22) and a main filter (23), wherein,

the pre-filter (21) is fixed on the tail gas treatment device (2) and is communicated with the tail gas joint (1);

the pre-filter (22) is fixed in the tail gas treatment device (2) and communicated with the pre-filter (21), the pre-filter (22) comprises a first filter cotton (221), a second filter cotton (222) and a third filter cotton (223),

the filtering precision of the first filtering cotton (221), the second filtering cotton (222) and the third filtering cotton (223) is increased progressively in sequence, and the first filtering cotton (221), the second filtering cotton (222) and the third filtering cotton (223) are arranged in sequence along the airflow direction;

a main filter (23) fixed in the exhaust gas treatment device (2) and communicated with the pre-filter (22), the main filter (23) comprising a particle filter layer (231) and a chemical filter layer (232), wherein,

the particle filtering layer (231) and the chemical filtering layer (232) are arranged in sequence along the direction of the air flow.

2. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the pre-filter (21) adopts a carbon powder oil mist filter device, and the filtering precision is 99.5%.

3. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the first filter cotton (221) is used for filtering particles with the particle size of 1-10 um, and the filtering precision is 99.5%.

4. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the second filter cotton (222) is used for filtering particles with the particle size of 0.5-1 um, and the filtering precision is 99.8%.

5. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the third filter cotton (223) is used for filtering particles with the particle size of 0.05-0.5 um, and the filter precision is 99.8%.

6. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the pre-filter (22) and the main filter (23) are sequentially arranged in the tail gas treatment device (2) from bottom to top.

7. The automobile exhaust filtering and purifying device according to claim 6, wherein: the particle filtering layer (231) and the chemical filtering layer (232) are sequentially arranged in the main filter (23) from bottom to top.

8. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the particle filtering layer (231) adopts a HEPA active carbon filter screen, and the filtering precision is 99.8%.

9. The automobile exhaust filtering and purifying device according to claim 1, characterized in that: the model of the chemical filter layer (232) is HEPA-D33, and the filter precision is 99.8%.